The document is an internship report submitted by Smriti Tikoo summarizing her study on insulated cabling systems at KEI Industries Ltd. It begins with an introduction to KEI's history and evolution, products, and key clients. The bulk of the report focuses on the different types of cables manufactured by KEI including EHV cables, HT cables, LT cables, control cables, and more. For EHV cables specifically, it describes the various tests, materials, constructions, insulation properties, and standards that KEI follows in manufacturing these high voltage cables.
The document discusses a summer training report submitted by Akash Vishwakarma at the Diesel Locomotive Works in partial fulfillment of a Bachelor of Technology degree. It includes sections on the Maintenance Service Shop, Central Transport Shop, SCADA system, and the colony area. The Maintenance Service Shop section describes various sub-sections including the winding shop, electronics shop, meter shop, and battery shop which repair and maintain locomotive parts and systems.
Internship report from my internship at VVC transformer manufacturing company in Bangalore.We did this internship in the third year of our electrical and electronics engineering under VTU.
The document provides background information on Bharat Heavy Electricals Limited (BHEL), including that it was established in 1964 to make India self-reliant in manufacturing heavy electrical equipment, it has grown to have 17 manufacturing units and supplies over 180 products across various sectors, and has played a key role in developing India's power sector with over 138 GW of installed capacity based on BHEL-supplied equipment.
It is that branch of welding in which Electric current is used to produce the large heat required for joining together into firm two pieces of metals.
Electrical welding process fall into two main categories
RESISTANCE WELDING.
ARC WELDING.
Since the loads having the trends towards growing density. This requires the better appearance, rugged construction, greater service reliability and increased safety. An underground cable essentially consists of one or more conductors covered with suitable insulation and surrounded by a protecting cover. The interference from external disturbances like storms, lightening, ice, trees etc. should be reduced to achieve trouble free service. The cables may be buried directly in the ground, or may be installed in ducts buried in the ground.
This document summarizes different types of power cables. It describes the general construction of cables which includes a conductor, insulation, sheath, bedding, armouring and serving. It then discusses various cable types such as belted cables, screened cables, super tension cables, oil filled cables and gas pressure cables. Screened cables include H-type and S.L. cables. The document provides details on the construction and advantages and disadvantages of each cable type.
The document discusses a summer training report submitted by Akash Vishwakarma at the Diesel Locomotive Works in partial fulfillment of a Bachelor of Technology degree. It includes sections on the Maintenance Service Shop, Central Transport Shop, SCADA system, and the colony area. The Maintenance Service Shop section describes various sub-sections including the winding shop, electronics shop, meter shop, and battery shop which repair and maintain locomotive parts and systems.
Internship report from my internship at VVC transformer manufacturing company in Bangalore.We did this internship in the third year of our electrical and electronics engineering under VTU.
The document provides background information on Bharat Heavy Electricals Limited (BHEL), including that it was established in 1964 to make India self-reliant in manufacturing heavy electrical equipment, it has grown to have 17 manufacturing units and supplies over 180 products across various sectors, and has played a key role in developing India's power sector with over 138 GW of installed capacity based on BHEL-supplied equipment.
It is that branch of welding in which Electric current is used to produce the large heat required for joining together into firm two pieces of metals.
Electrical welding process fall into two main categories
RESISTANCE WELDING.
ARC WELDING.
Since the loads having the trends towards growing density. This requires the better appearance, rugged construction, greater service reliability and increased safety. An underground cable essentially consists of one or more conductors covered with suitable insulation and surrounded by a protecting cover. The interference from external disturbances like storms, lightening, ice, trees etc. should be reduced to achieve trouble free service. The cables may be buried directly in the ground, or may be installed in ducts buried in the ground.
This document summarizes different types of power cables. It describes the general construction of cables which includes a conductor, insulation, sheath, bedding, armouring and serving. It then discusses various cable types such as belted cables, screened cables, super tension cables, oil filled cables and gas pressure cables. Screened cables include H-type and S.L. cables. The document provides details on the construction and advantages and disadvantages of each cable type.
Report on industrial summer training on 220 kv substationAshutosh Srivastava
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The document is a report submitted by Ashutosh Srivastava detailing his 6-week summer training at the 220/132 kV substation in Barahuwa, Gorakhpur, Uttar Pradesh, India. It includes sections on the equipment found at a typical 220kV substation such as busbars, isolators, circuit breakers, transformers, and instrument transformers. It also discusses the selection of suitable substation sites and provides an overview of Uttar Pradesh Power Corporation Limited, the organization responsible for electricity transmission and distribution in Uttar Pradesh.
power quality improvement in distrution system using D statcom7867867869
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The document discusses using a D-STATCOM device to improve power quality issues in distribution systems, such as voltage sags, harmonic distortion, and low power factor. A D-STATCOM injects current into the system using a voltage source converter to regulate voltage and mitigate sags. It can also absorb or generate reactive power to improve power factor and eliminate current harmonics. Simulation results showed the D-STATCOM is effective at mitigating voltage sags and improving power factor when combined with an LCL passive filter.
- The document discusses the need for a national power grid in India to connect regional grids and ensure reliable electricity delivery across the country.
- India's electricity grid is divided into five regional grids that operate mostly asynchronously. A national grid would improve power transfer capabilities across regions.
- The development of new technologies like HVDC transmission, FACTS devices, and smart grid capabilities can further improve the efficiency and reliability of India's power grid.
- However, building a national grid also presents challenges like high investment costs, transmission losses, and ensuring stability across a large interconnected system.
SWICTH GEAR AND PROTECTION (2170906)
DISTANCE RELAY
âĸ There are mainly Three types of distance relay
1) Impedance Relay
2) Reactance Relay
3) Mho Relay
This document discusses underground cables for electrical power distribution. It covers the construction of cables including conductors, insulation, metallic sheathing, bedding, armouring and serving. Common insulating materials like XLPE are described. Cables are classified based on voltage level. Methods of laying cables underground include direct laying, draw-in systems and solid systems. Potential cable faults include open circuits, short circuits and earth faults. Underground cables have advantages over overhead systems like better appearance, lower maintenance needs and fewer faults, but the installation costs are higher.
HVDC (high-voltage direct current) is a highly efficient alternative for transmitting large amounts of electricity over long distances and for special purpose applications.
This document summarizes a study on the electricity distribution system, substation operations, and maintenance at DESCO. It provides an overview of DESCO and Bangladesh's power sector, describes the supply chain and infrastructure from generation to consumers. It then details the key equipment at substations, such as transformers and circuit breakers, and the maintenance procedures. It also discusses DESCO's goals like increasing access to electricity and reducing losses, as well as their plans to expand operations to meet rising demand.
The electric power system consists of generation, transmission, and distribution with the goal of supplying electric power to various loads. Generation facilities convert energy sources like coal, gas, and hydro into electrical energy. Transmission systems move power over long distances at high voltages via overhead lines or underground cables. Distribution systems then deliver power to customers through lower voltage infrastructure. The system aims to reliably meet the varying power demands of residential, commercial, and industrial consumers.
Pulse Width Modulation, or PWM, is a technique for getting analog results with digital means.
Digital control is used to create a square wave, a signal switched between on and off.
This document provides an overview of Bharat Heavy Electricals Limited (BHEL), India's largest power equipment manufacturer. It discusses BHEL's business sectors including power, industry, transmission, transportation, and renewable energy. It also describes BHEL's manufacturing facilities, major products like turbines, transformers, traction motors, and technical collaborations. The document highlights BHEL's role in developing India's power sector and its growing international operations in over 68 countries.
The document discusses different types of resonant pulse inverters. It begins by explaining the disadvantages of traditional pulse-width modulation controlled converters, such as high switching losses and electromagnetic interference. It then introduces resonant pulse converters which minimize these issues by forcing the voltage and current to zero during switching. The document outlines various resonant converter topologies, including series and parallel resonant inverters as well as classes of converters that achieve zero-voltage or zero-current switching. It provides examples of half-bridge and full-bridge configurations for series resonant inverters with both unidirectional and bidirectional switches. Finally, it briefly discusses the operation of parallel resonant inverters.
Electrical fault is the deviation of voltages and currents from nominal values or states. Under normal operating conditions, power system equipment or lines carry normal voltages and currents which results in a safer operation of the system.
Reactive power is necessary to maintain adequate voltage levels to transmit active power across transmission systems. It is required for system reliability and to prevent voltage collapse. Voltage is controlled by managing the production and absorption of reactive power on the system. Both insufficient reactive power and excessive reactive power can cause voltage issues and equipment problems if voltage is not properly regulated. Reactive power reserves are also required to maintain voltage stability under contingency events like generator or transmission line outages.
This document provides information about cables used in civil engineering. It discusses the structure and composition of cables, including the conductor, insulation, lead sheath, bedding, and armouring. It describes the manufacturing process of cables and the types of cables, including power cables classified by voltage, core, and armouring. It also discusses networking cables, underground cables, common cable brands in Pakistan, color coding of wires, and factors in determining cable suitability.
This document discusses permanent magnet brushless DC (PMBLDC) motors. It provides details on their construction, operation, advantages over conventional DC motors, and applications. Key points include:
- PMBLDC motors have a permanent magnet rotor and electronic commutation instead of brushes and commutator, making them more efficient and reliable than conventional DC motors.
- The rotor position is detected by sensors like Hall sensors or optical sensors and fed to an electronic circuit that controls the timing of voltage applied to the motor windings.
- Advantages over conventional DC motors include lower maintenance, higher speed control, and regenerative braking capability. PMBLDC motors find use in automotive, industrial, consumer
Disadvantages of corona, radio interference, inductive interference between p...vishalgohel12195
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Disadvantages of corona, radio interference, inductive interference between power and communication lines
Introduction
Disadvantages of corona.
Radio interference.
Inductive interference between power and communication lines
The document summarizes a seminar presentation on HVDC (high voltage direct current) transmission. Some key points:
- HVDC transmission has advantages over HVAC like lower transmission losses over long distances. The first HVDC link was between Gotland and mainland Sweden in 1954.
- HVDC uses direct current instead of alternating current to transmit electricity over long distances. It requires only two conductors instead of three. Losses are also lower compared to HVAC.
- HVDC transmission can be classified as homopolar, monopolar or bipolar depending on the conductor configuration. Early HVDC projects in India included the Rihand-Delhi and Chandrapur-Padghe lines which helped transmit
Current transformers are used to measure current and transform high current values to lower, more measurable values. They have laminated silicon steel cores, carry the current to be measured in the primary winding, and cannot have an open secondary circuit. Potential transformers are used to measure voltage and transform high voltages to lower values. They have steel cores operating at low flux densities, carry the voltage to be measured in the primary winding, and can have an open secondary circuit. Both devices are used for measurement, monitoring power grids, and operating protective relays, but current transformers have low impedance while potential transformers have high impedance.
This document discusses fault analysis in HVDC and HVAC transmission lines. It begins with a brief history of HVDC systems and then covers the basics of HVDC transmission including components and types. The main sections compare HVAC and HVDC systems, discuss fault analysis in both, and describe various protection methods. HVDC transmission is described as advantageous for long distance bulk power transmission, underground/underwater cables, and asynchronous grid interconnection. Protection of AC and DC lines includes overcurrent, overvoltage, and DC reactor methods.
How to make the most of your Internshipelliottofhook
Â
The document provides tips for making the most of an internship by meeting future career goals. It recommends (1) understanding your career clarity and tailoring your approach, (2) gathering evidence of skills through tasks and keeping a diary, and (3) agreeing on objectives and deliverables with a mentor. It also advises using the CAR technique (Context, Action, Result) to effectively communicate internship experiences in interviews by providing concrete examples of skills and achievements.
Report on industrial summer training on 220 kv substationAshutosh Srivastava
Â
The document is a report submitted by Ashutosh Srivastava detailing his 6-week summer training at the 220/132 kV substation in Barahuwa, Gorakhpur, Uttar Pradesh, India. It includes sections on the equipment found at a typical 220kV substation such as busbars, isolators, circuit breakers, transformers, and instrument transformers. It also discusses the selection of suitable substation sites and provides an overview of Uttar Pradesh Power Corporation Limited, the organization responsible for electricity transmission and distribution in Uttar Pradesh.
power quality improvement in distrution system using D statcom7867867869
Â
The document discusses using a D-STATCOM device to improve power quality issues in distribution systems, such as voltage sags, harmonic distortion, and low power factor. A D-STATCOM injects current into the system using a voltage source converter to regulate voltage and mitigate sags. It can also absorb or generate reactive power to improve power factor and eliminate current harmonics. Simulation results showed the D-STATCOM is effective at mitigating voltage sags and improving power factor when combined with an LCL passive filter.
- The document discusses the need for a national power grid in India to connect regional grids and ensure reliable electricity delivery across the country.
- India's electricity grid is divided into five regional grids that operate mostly asynchronously. A national grid would improve power transfer capabilities across regions.
- The development of new technologies like HVDC transmission, FACTS devices, and smart grid capabilities can further improve the efficiency and reliability of India's power grid.
- However, building a national grid also presents challenges like high investment costs, transmission losses, and ensuring stability across a large interconnected system.
SWICTH GEAR AND PROTECTION (2170906)
DISTANCE RELAY
âĸ There are mainly Three types of distance relay
1) Impedance Relay
2) Reactance Relay
3) Mho Relay
This document discusses underground cables for electrical power distribution. It covers the construction of cables including conductors, insulation, metallic sheathing, bedding, armouring and serving. Common insulating materials like XLPE are described. Cables are classified based on voltage level. Methods of laying cables underground include direct laying, draw-in systems and solid systems. Potential cable faults include open circuits, short circuits and earth faults. Underground cables have advantages over overhead systems like better appearance, lower maintenance needs and fewer faults, but the installation costs are higher.
HVDC (high-voltage direct current) is a highly efficient alternative for transmitting large amounts of electricity over long distances and for special purpose applications.
This document summarizes a study on the electricity distribution system, substation operations, and maintenance at DESCO. It provides an overview of DESCO and Bangladesh's power sector, describes the supply chain and infrastructure from generation to consumers. It then details the key equipment at substations, such as transformers and circuit breakers, and the maintenance procedures. It also discusses DESCO's goals like increasing access to electricity and reducing losses, as well as their plans to expand operations to meet rising demand.
The electric power system consists of generation, transmission, and distribution with the goal of supplying electric power to various loads. Generation facilities convert energy sources like coal, gas, and hydro into electrical energy. Transmission systems move power over long distances at high voltages via overhead lines or underground cables. Distribution systems then deliver power to customers through lower voltage infrastructure. The system aims to reliably meet the varying power demands of residential, commercial, and industrial consumers.
Pulse Width Modulation, or PWM, is a technique for getting analog results with digital means.
Digital control is used to create a square wave, a signal switched between on and off.
This document provides an overview of Bharat Heavy Electricals Limited (BHEL), India's largest power equipment manufacturer. It discusses BHEL's business sectors including power, industry, transmission, transportation, and renewable energy. It also describes BHEL's manufacturing facilities, major products like turbines, transformers, traction motors, and technical collaborations. The document highlights BHEL's role in developing India's power sector and its growing international operations in over 68 countries.
The document discusses different types of resonant pulse inverters. It begins by explaining the disadvantages of traditional pulse-width modulation controlled converters, such as high switching losses and electromagnetic interference. It then introduces resonant pulse converters which minimize these issues by forcing the voltage and current to zero during switching. The document outlines various resonant converter topologies, including series and parallel resonant inverters as well as classes of converters that achieve zero-voltage or zero-current switching. It provides examples of half-bridge and full-bridge configurations for series resonant inverters with both unidirectional and bidirectional switches. Finally, it briefly discusses the operation of parallel resonant inverters.
Electrical fault is the deviation of voltages and currents from nominal values or states. Under normal operating conditions, power system equipment or lines carry normal voltages and currents which results in a safer operation of the system.
Reactive power is necessary to maintain adequate voltage levels to transmit active power across transmission systems. It is required for system reliability and to prevent voltage collapse. Voltage is controlled by managing the production and absorption of reactive power on the system. Both insufficient reactive power and excessive reactive power can cause voltage issues and equipment problems if voltage is not properly regulated. Reactive power reserves are also required to maintain voltage stability under contingency events like generator or transmission line outages.
This document provides information about cables used in civil engineering. It discusses the structure and composition of cables, including the conductor, insulation, lead sheath, bedding, and armouring. It describes the manufacturing process of cables and the types of cables, including power cables classified by voltage, core, and armouring. It also discusses networking cables, underground cables, common cable brands in Pakistan, color coding of wires, and factors in determining cable suitability.
This document discusses permanent magnet brushless DC (PMBLDC) motors. It provides details on their construction, operation, advantages over conventional DC motors, and applications. Key points include:
- PMBLDC motors have a permanent magnet rotor and electronic commutation instead of brushes and commutator, making them more efficient and reliable than conventional DC motors.
- The rotor position is detected by sensors like Hall sensors or optical sensors and fed to an electronic circuit that controls the timing of voltage applied to the motor windings.
- Advantages over conventional DC motors include lower maintenance, higher speed control, and regenerative braking capability. PMBLDC motors find use in automotive, industrial, consumer
Disadvantages of corona, radio interference, inductive interference between p...vishalgohel12195
Â
Disadvantages of corona, radio interference, inductive interference between power and communication lines
Introduction
Disadvantages of corona.
Radio interference.
Inductive interference between power and communication lines
The document summarizes a seminar presentation on HVDC (high voltage direct current) transmission. Some key points:
- HVDC transmission has advantages over HVAC like lower transmission losses over long distances. The first HVDC link was between Gotland and mainland Sweden in 1954.
- HVDC uses direct current instead of alternating current to transmit electricity over long distances. It requires only two conductors instead of three. Losses are also lower compared to HVAC.
- HVDC transmission can be classified as homopolar, monopolar or bipolar depending on the conductor configuration. Early HVDC projects in India included the Rihand-Delhi and Chandrapur-Padghe lines which helped transmit
Current transformers are used to measure current and transform high current values to lower, more measurable values. They have laminated silicon steel cores, carry the current to be measured in the primary winding, and cannot have an open secondary circuit. Potential transformers are used to measure voltage and transform high voltages to lower values. They have steel cores operating at low flux densities, carry the voltage to be measured in the primary winding, and can have an open secondary circuit. Both devices are used for measurement, monitoring power grids, and operating protective relays, but current transformers have low impedance while potential transformers have high impedance.
This document discusses fault analysis in HVDC and HVAC transmission lines. It begins with a brief history of HVDC systems and then covers the basics of HVDC transmission including components and types. The main sections compare HVAC and HVDC systems, discuss fault analysis in both, and describe various protection methods. HVDC transmission is described as advantageous for long distance bulk power transmission, underground/underwater cables, and asynchronous grid interconnection. Protection of AC and DC lines includes overcurrent, overvoltage, and DC reactor methods.
How to make the most of your Internshipelliottofhook
Â
The document provides tips for making the most of an internship by meeting future career goals. It recommends (1) understanding your career clarity and tailoring your approach, (2) gathering evidence of skills through tasks and keeping a diary, and (3) agreeing on objectives and deliverables with a mentor. It also advises using the CAR technique (Context, Action, Result) to effectively communicate internship experiences in interviews by providing concrete examples of skills and achievements.
Dokumen tersebut membahas tentang jenis-jenis gangguan pada kabel bawah tanah seperti gangguan konduktor putus, gangguan seri, gangguan antar fasa, dan gangguan fasa ke tanah. Dokumen ini juga menjelaskan metode untuk menentukan lokasi gangguan pada kabel bawah tanah seperti metode terminal dan metode pelacakan, serta alat yang digunakan seperti reflektometer. Dokumen ini juga membahas cara menent
Matrix Networks Renewables designed and constructed a 132kV grid connection in Melbourn, South Cambridgeshire to supply two 20MW PV farms for Lightsource Renewable Energy Ltd. The open bar compound included a 132kV/33kV transformer, 33kV switchboards, steel structures, a transformer bund, control building, and security fencing built to UK Power Networks standards. Matrix Networks also installed approximately 4.5km of dual circuit 33kV cabling to connect the grid connection to the two PV farms.
This document is an enquiry sheet for Nexans Power Accessories (UK) Ltd requesting information about cable specifications to provide accessory components. It requests the cable manufacturer and identification, voltage and current ratings, conductor material and size, insulation type and diameter, screen types, and whether a bushing is required. Submitters are asked to fax or email the completed form to Nexans for a quote on accessories.
900 Series Interface F Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface F bushings on switchgear and transformers up to 42kV. Nexans 944TB Tee Connectors provide high voltage cable terminations using separable tee shape connectors :
Nexans 944TB/G - 12kV 2500Amp 70-80sqmm Conductors
Nexans K944TB/G - 24kV 2500Amp 16-800sqmm Conductors
Nexans M944TB/G - 36kV 2500Amp 35-800sqmm Conductors
Nexans P944TB/G - 42kV 1250Amp 50-800sqmm Conductors
400 Series Interface B Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface B bushings on switchgear and transformers.
Nexans Euromold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F.
Nexans Euromold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables.
400 Series Interface C Compact Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface C bushings on switchgear and transformers.
Nexans Euromold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F.
Nexans Euromold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables.
200 Series Interface A Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface A bushings on switchgear and transformers.
Nexans Euromold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F.
Nexans Euromold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables.
400 Series Interface C Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface C bushings on switchgear and transformers.
Nexans Euromold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F.
Nexans Euromold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables.
Dalam transmisi dan distribusi tenaga listrik banyak dilakukan berbagai cara diantaranya melalui saluran udara (Over Head Line) dan saluran kabel bawah tanah (Underground Transmission). Akan tetapi transmisi dan distribusi saluran udara menjadi sangat sulit untuk dilaksanakan khususnya pada daerah yang jumlah penduduknya banyak seperti di kota-kota, dengan alas an beresiko tinggi dan mengurangi keindahan lingkungan. Untuk menghindari hal tersebut maka digunakan kabel transmisi yang di pasang di bawah permukaan tanah yang disebut kabel kabel bawah tanah (Underground Cable).
The presentation provides information on Prysmian Group, the world's largest cable company, and its Aberdeen distribution center. Key details include:
- Prysmian Group has âŦ8.2B in annual turnover, operates in 50 countries with 98 plants and 22,000 employees, and has over 130 years of combined experience.
- The Aberdeen distribution center services the North Sea oil & gas industry, stocking over 300km of offshore and marine cables. It can handle orders from a few meters up to major projects involving thousands of meters.
- The center supplies common cable types like BS6883, BS7917, NEK606, IEEE45 cables to clients like BP, Transocean
Prysmian TechnergyTM Offshore cables provide integrated cabling solutions for offshore platforms that excel at performing under demanding conditions, preserving human safety, and protecting the environment. The cables have chemical resistant properties and fire safety features that promote longer operational lifetimes and increased safety. Prysmian offers a complete range of customized power and communication cables, as well as installation expertise, for all offshore networking needs.
ABB are a leading manufacturer of medium voltage (MV) fuses used as main or back up protection elements of systems and apparatus. Fuses (commonly recognized as High Voltage Fuses) are classified as current limiting and non-current limiting (expulsion).
ABB fuses are designed based on wide application experience coming from designing of electrical protection in medium voltage systems and coordination with ABB products where fuses are applicable (air and SF6 insulated switchgears with load break switches, distribution transformers and contactors).
ABB MV HV medium-high voltage fuses protect distribution transformers, motors, switchgear and capacitor banks against overload currents - ABB MV-HV fuses can operate as sole devices or can be combined with air/SF6 insulated switch disconnectors. T&D distribute ABB medium voltage fuses for safe protection of 3.3kV, 6.6kV, 7.2kV, 11kV, 12kV 15kV, 20kV, 22kV, 24kV, 33kV, 36kV and 42kV cable systems.
The book Adhesive Technology and Formulations Hand Book covers almost all the basic and advanced details to setup own Gums and Adhesive Unit. The new edition of the book is covering latest methods including Introduction, Historical Development of Adhesives and Adhesive Bonding, Types of Adhesives, Emulsion and Dispersion Adhesives, Testing of Adhesives,
Protein Adhesives for Wood, Hot Melt Adhesives, Animal Glues and Adhesives,
Polyvinyl Acetate/Alcohol Based Adhesives, Ethylene-Vinyl Acetate
Copolymers, Polyvinyl Acetal Adhesives, Silicone Adhesives, Epoxide
Adhesives, Polyester Adhesives, Furane Adhesives, Phenolic Resin Adhesives,
Cellulose Derivative Adhesives, Epoxy Polyurethane Adhesives,
Polyisocyanate/Polyurethane Adhesive, Amino (Urea & Melamine)
Formaldehyde Adhesives, Paper, Board & Packaging Adhesives, Remoistenable Adhesives, Gum Arabic etc. Adhesives, Footwear Applications
of Adhesives, High-Temperature Adhesives, Dispensing of Adhesives, Natural
RubberâBased Adhesives, Polysulfied Sealants and Adhesives, Phenolic Resin
Adhesives, UreaâFormaldehyde Adhesives, MelamineâFormaldehyde Adhesives, Polyurethane Adhesives, Unsaturated Polyester Adhesives, Reactive Acrylic Adhesives, Technology of Cyanoacrylate Adhesives for
Industrial Assembly, Silicone Adhesives and Sealants, Epoxy Resin Adhesives,
Pressure-Sensitive Adhesives, Adhesives in the Automotive Industry, Adhesive
Based on Vinyl Acetate, Printing Gums (Guar Gum Based), Leather Based
Adhesive, Latex Rubber Based Adhesive, Office Paste, Starch and Dextrin
Based Adhesive, Adhesive for Corrugation Dry Powder and Paste, Adhesive
(Different Type), Adhesive Industries (Laminated, Fevicol, Sticker DDL and
Other Types of Adhesive), Rubber Adhesive, Adhesive (Polyvinyl Butyral
Based), Self Adhesive Labels, Ester Gums (Food Grade), Vulcanizing Rubber
Solution/Cement for Automobile Tyres, Industrial Adhesive Based on Starch
Gum, Dextrin Silicate, Suppliers of Plant & Machineries and Suppliers of Raw
Materials.
The book has been written for the benefit and to prove an asset and a
handy reference guide in the hands of new entrepreneurs and well established
industrialists.
Director
- KEI Industries is an Indian electrical cable and wire manufacturing company headquartered in New Delhi.
- It has over 2,000 employees across India and reported gross sales of INR 10,557 million in FY 2009.
- The company provides a complete range of power cables including low voltage, high voltage, control, instrumentation, and house wires. It has manufacturing plants in Bhiwadi, Silvassa, and Chopanki and a pan-India sales and distribution network.
- KEI aims to become one of the world's leading electrical cable companies through expanding its product range, increasing production capacity, and growing its domestic and international customer base.
EV CHARGING CABLE â STANDARDS, TESTING, AND CERTIFICATIONiQHub
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The presentation discusses electric vehicle charging cables, including an overview of standards, testing, certification and market drivers. It covers common cable failures, types of cable testing in areas like fire, chemicals and electricity, and the cable supply chain and certification process. It provides a case study of a certified electric vehicle charging cable from Doncaster Cables. The presentation aims to provide guidance on ensuring high quality, compliant cables for electric vehicle charging infrastructure.
High Tension Wire & Cables at kei-ind.com/ht-cables.phpVinay Pravidhi
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KEI manufactures HT XLPE cables up to 220KV conforming to National and International Standards at Bhiwadi plant. KEI has State of Art HT cable plant with German technology. The manufacturing capability is upto 220KV.
The document discusses Havells cables and wires product range and certifications. It summarizes that Havells produces various types of low and high voltage PVC and XLPE power and control cables that are certified according to Indian and international standards. It also produces special cables, overhead cables, and wires. Havells uses quality raw materials from reputed suppliers and has state-of-the-art manufacturing facilities.
SIRIM Testing and Certification on Electrical Cable TestingAhmadFauziHussin
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The document discusses electrical cable testing conducted by SIRIM QAS International Sdn Bhd. It provides an overview of their roles and services which include product certification, testing, and inspection. It then describes the different types of cables used in Malaysia and the applicable standards. The document outlines the general test requirements for electrical cables which include electrical, mechanical, fire, and chemical tests. It also discusses issues with substandard cables and SIRIM's role in assisting with compliance testing, certification, and market surveillance. The certification process for electrical cables is summarized in several steps including application, evaluation, testing, and product evaluation.
UKB Electronics: Empowering Connections with Quality Wires and CablesUKB Electronics Pvt Ltd
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UKB Electronics Pvt. Ltd. is a renowned company specializing in the manufacturing of high-quality wires and cables. With a commitment to excellence, UKB Electronics produces a wide range of electrical wires and cables that are used in various applications, including residential, commercial, and industrial sectors. Their products are known for their durability, safety, and superior performance.
Utilizing advanced technology and stringent quality control measures, UKB Electronics ensures that their wires and cables meet international standards and regulations. Whether it's for electrical wiring, telecommunications, or automotive purposes, their products are designed to provide reliable and efficient connectivity solutions.
KEI are reqarded by acceptance of our Instrumentation Cables by the country's prime organisations
such as NTPC, PDIL, EIL, BHEL, TATA's, IOCL, L&T, ABB, KRUPP Ind, BPCL., HPCL, ESSAR, SIEMENS,
Electricity Boards, Reliance, IOTL, Mukand, Honeywell etc. Kei
Estimada red, les comparto toda la gama de productos de la divisiÃŗn ElÊctrica y ElectrÃŗnica Industrial de Keruigroup. Ofrecemos financiamiento desde 60 dÃas a 2 aÃąos. Proyectos CAPEX, OPEX a todo nivel. Si tienes otros productos que quieras traer de China en contenedores, somos los indicados con los mejores beneficios. Interesados contactarme.
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1. 1
INTERNSHIP REPORT
ON
STUDY ON INSULATED CABLING SYSTEMS
AT
KEI INDUSTRIES LTD
SUBMITTED BY:
SMRITI TIKOO
14-ECP-015
MTECH (ECE) 1st
Yr
ITM UNIVERSITY, GURGAON
SESSION-2014-15
2. 2
CERTIFICATE
This is to certify that the internship project titled âStudy On Insulated Cabling
Systemsâ submitted by Smriti Tikoo in fulfillment of the requirements of course at
KEI as part of the degree of Master of Technology in Electronics and Communication
of ITM University, session 2014-2015 is a record of bonafide supervision and has not
been submitted anywhere else for any other purpose.
Name of Industrial Experts Name of Faculties
Mr. Arvind Shrowty (Executive Director) Ms. Sharda Vashisht
Mr. Surinder Jain ( Head of Dept)
Mr. Avinash Gautam
3. 3
ACKNOWLEDGEMENT
I hereby acknowledge the guidance and support given to me by my mentors Mr.
Arvind Shrowty, Executive Director of KEI and Mr. Surinder Jain ,Head of EHV
Dept, Mr. Avinash Gautam , Mr Puneet Jain of EHV dept at KEI, for my
internship. I am obliged to them for considering me as a trainee and devoting their
precious time in helping me with the internship project .I would also like to thank the
faculty members of ITM University, Ms Sharda Vashisht for assisting and
encouraging me .
4. 4
ABSTRACT
This report is a study on the different utility cables used in the various industries
manufactured by the one of the leading manufacturers of cables KEI Industries Ltd
.The Organization offers variety of cables keeping in mind the customer specifications
and demands of the market. The report encompasses the details and specifications of
cables offered by KEI as per Indian and International Stds. It also offers the flexibility
of catering to the customer specific requirements. The organization is on the Fortune
500 list and ranks second in the leading Cabling Industries. It offers EHV cables,
Control cables, HT cables, LT cables, Marine and Off shore cables, and many more.
The insulated cabling systems form the basis of power transmission systems be it for
domestic or commercial purposes.
5. 5
TABLE OF CONTENTS
CERTIFICATE
ACKNOWLEDGEMENT
ABSTRACT
1. INTRODUCTION
1.1. Genesis
1.2. Evolution
1.3. Kei cabling solutions spectrum
1.4. Key clients
2. PRODUCTSPROVIDED/MANUFACTURED
3. EHV CABLES
3.1. Type of tests
3.2. Construction
3.3. Construction screening
3.4 Insulation screening
3.5. Type of tests
3.6. Popular constructions
3.7. Selecting a power cable
3.8. Terminations for a polymer cables
3.9 Terminations for oil filled cables
3.10 Joints for polymer cables
3.11.Joints for oil filled polymer cables
3.12.Transition Joints
4. HT CABLES
5. LT CABLES
6.CROSSLINKED POLY ETHYLENE
7. CONTROLCABLES
8. INSTRUMENTATION CABLES
9. THERMOCOUPLE EXTENSION/ COMPENSATING
10. RUBBER CABLES
11. HOUSE WIRES
12. SINGLE/MULTICORE FLEXIBLE WIRES
13. WINDING WIRES
14. STAINLESS STEELWIRES
15. MARINE AND OFF SHORE CABLES
16.SOLAR CABLES
17.CONCLUSION
18.REFERENCES
6. 6
1. INTRODUCTION:
KEI Industries Limited, known for its unique product range across the world is one of
the leading players in the wires and cables industry. KEI manufactures high and low
tension cables (EHV, HT & LT), control and instrumentation cables, house wires and
stainless steel wires. Its unique product range is known pan India and across the
globe. KEI has also been awarded the ⲠSuperbrand Ⲡstatus for the year 2013-2014
further strengthening the consumer â˛s trust. To follow the present demands of the
market, KEI set foot into the manufacturing of EHV cables up to 220kV in
collaboration with Brugg Cables, a century old Swiss company.
1.1.Genesis:
īˇ 1968: Established as a Partnership Company.
īˇ 1968: Manufacturing of Switchboard Cables for DOT starts.
īˇ 1985: Manufacturing of Control, Instrumentation and Thermocouple Cables begins.
īˇ 1993: Manufacturing of PVC/XLPE Power cables up to 3.3 KV added to existing
portfolio.
1.2.Evolution:
īˇ 1994: Diversified into Stainless Steel drawings with Pilot Plant
īˇ 1995: Launch of the First IPO, went Public.
īˇ 1996: Installation of Major SSW plant at Bhiwadi
īˇ 1997: Installation of another plant at Bhiwadi for LT PVC / XLPE Cables.
īˇ 2001: Scaling up with manufacture of Rubber Cables up to 11 KV.
īˇ 2002: Established JFTC Plant at Silvassa
īˇ 2005: Upgraded JFTC Plant in Silvassa to manufacture existing cable range -
Rebalancing Act
īˇ 2006: Expansion of Bhiwadi unit to manufacture up to 33 kV HT XLPE Cables with
Dry curing inert nitrogen gas and with triple extrusion (Single cross head) process.
2006: Introduced ERP Baan S/W system in the organization to ensure Transparency
and efficacy.
īˇ 2007: Upgrading Bhiwadi Unit to manufacture HT power cable up to 132 kV & LT
cable.
īˇ 2007: Proud recipient of Corporate Governance Rating
īˇ 2007: Setting up of 100% EOU at Chopanki
īˇ 2008: Successfully commissioned 100% EOU at Chopanki
īˇ 2009: Enhanced HT Cable Capacity at Bhiwadi up to 132 KV
īˇ 2010: Entered into a technical collaboration agreed with M/s Brugg Kabel AG,
switzerland to manufacture EHV cables up to 220kV and diversified into EPc
business.
7. 7
īˇ 2010 : Proud recipient of Business Super brand Award for Industry Validated
īˇ 2011 : Certification of ISO 9001:2008, OHSAS 18001:2007, OHSAS 14001:2004
īˇ 2011 : Receipt of EHV cable order from KPTCL worth Rs75 Crores
īˇ 2011: Successful redemption of FCCBs in November.
īˇ 2012: Receipt of EHV order of Rs.138 crores from Uttar Pradesh Rajkiya nirman
Nigam Ltd.
īˇ 2012: Proud recipient of Super Brand status for consumer validated.
īˇ 2013-14: New office at Singapore, Nigeria, Kazakhstan.
Manufacturing sites: Bhiwadi( Rajasthan), sislvassa(Union territory of D&NH),
Chopanki (Rajasthan)
Figure 1
8. 8
1.4.Kei Cabling Solutions Spectrum :-
KEI has earned a formidable reputation by nurturing relationships, ensuring timely
execution of orders and becoming a reliable partner in executing client projects.
Repeat orders received year after year from satisfied customers bear testimony to our
uncompromised quality and customer commitment. Our cost-effective quality and
reliable products range that meets rigorous technical requirements of our customers
has made us an undisputed industry leader. KEI has invested in building an intelligent
infrastructure which ensures clients receive products that conform to their stringent
requirements.KEI is perhaps one of the few companies in India to offer customers a
unique range of specialty cables such as fire survival cables, zero halogen cables and
braided cables. An ability to utilize more than 90% of its resources makes KEI one of
the most efficient players in the industry. KEI enjoys a unique flexibility to switch
production between HT and LT cables depending on prevailing market conditions and
demands. An an ISO:9001:2008, ISO:14001:2004 & OHSAS:18001:2007 certified
company; KEI carries out stringent quality control measures under surveillance of a
competent team of technocrats and quality enablers. Continuous Product Innovations
and cutting-edge R&D at KEI's in-house labs is what contributes towards constant
evolution in our offerings and services. All KEIs cables and wires are of a superior
quality, a reason why they have been accredited and certified by Testing Agencies
across the globe.
1.5.Key Clients: The company has a longstanding presence in the sector which has
resulted in an esteemed clientele cutting across various sectors. The list comprises of
the biggest names in the industry. Just go ahead and search to find out more about our
long list of satisfied clients. Clientele as per following categories:
9. 9
īˇ Sector specific: - Power/ transmission/ coal field projects, Cement project,
Fertilizers/ refineries/petro chemicals/ paper projects.
īˇ Country specific:-MEW EDD BAHRAIN, SEWA, FEWA-UAE, NEPCO, PEC
YEMEN, JT METRO JV(DUBAI), GASCO, PDD OMAN, KNPC KUWAIT,
QATAR PETROLEUM , SOHAR ALUNIUM, TECHNIP, PETROFAC ETC.
2.Products Provided/Manufactured By KEI:
īˇ It manufactures cables suiting the needs of clients be it Select the copper core or
aluminium core; whether armoured or unarmored cable is required , find them all
here confirming to different standards. It also provides custom-manufactured
speciality cables.
īˇ EHV Cables
īˇ HT Cables
īˇ LT Cables
īˇ Control Cables
īˇ Instrumentation Cables
īˇ Thermocouple Extension/Compensating
īˇ Rubber Cables
īˇ House Wires
īˇ Single/Multicore Flexible Wires
īˇ Winding Wires
īˇ Stainless Steel Wires
īˇ Marine & offshore cables
īˇ Solar Cables.
10. 10
3.EHV Cables:
In the Indian terminology all cables rated 66 KV & above are designated as Extra
High Voltage cables. Available with aluminum & copper conductor and various
combination of metal sheath namely poly-aluminum sheath / lead sheath / aluminum
sheath in combination with or without copper wire screens. The standard covers the
requirement of single core cross linked polythene insulated armoured and unarmoured
and thermoplastic outer sheathed cables for 3 phase ac earthed system for electric
supply for voltage grades.
Table 1 Voltage Grades
Systemâs Voltage âU(kV) Rated Voltage- UËŗ/U(kV) Highest Systemâs Voltage-
Um(kV)
66 38/66 725
110 64/110 123
132 76/132 145
220 127/220 245
Cables covered under this std are suitable for use where the combined ambient
temperature and temperature rise ,due to load result in conductor temperature not
exceeding 90°C under normal operation and 250ËC under short circuit operation.
3.1Important Tests and Terms carried out on Cables:
1. Routine test:-Tests carried out by manufacturer on all finished cable lengths to
demonstrate integrity of the cable.
2. Type Tests:- These tests are required to be made before supply o a type of
cable on a general commercial basis in order to demonstrate satisfactory
performance characteristic to meet the intended application. These tests are of
the such nature that after they are made they need to be repeated unless changes
11. 11
are made in the cable materials on design which might change the performance
characteristics.
3. Acceptance test:-Tests carried out on samples taken from the lot for purpose
of acceptance of the lot.
4. Optional Tests: Special tests to be carried out , when required ,by the
agreement between purchaser and the supplier.
5. Earthed System :An electrical system in which the neutral point or a midpoint
connection is earthed in such a manner that even under fault conditions , the
maximum voltage that can occur between any conductor and earth does not
exceed 80 percent of nominal system voltage.
6. Longitudinally Watertight Cable: Cables to meet requirements to prevent the
propagation of water along the length of cable.
7. Radially Watertight Cable:-Cables to meet the requirements to prevent the
radial propagation of water.
Materials Required for various parts of EHV cables:-
īˇ Conductor:-Composed of plain copper wires complying with IS 8130:1984.
īˇ Insulation: The insulation shall be of cross linked polythene conforming to
the requirements of Table.
īˇ Screening:-The screening shall consist of one or more of the following:
a) Non âmetallic semi-conducting tape;
b) Non-metallic semiconducting compound , and
c) Non âmagnetic metallic tape, wire, strip or sheath. The semi-conducting
compound shall be suitable of the cable and compatible with the insulating
material.
12. 12
Table 2: Properties of XLPE Insulation
Property Requirement
(i)Tensile strength before ageing 125 N/ sq mm(min)
(ii)Elongation at break before ageing 200%
(iii)Ageing in air oven
a)Treatment temperature duration 135¹3°C
168h
b)Variation from corresponding values
before ageing
Tensile strength Âą25%(max)
Elongation after cooling Âą25%(max)
(iv)Hot Set
a)Treatment temperature time under load
mechanical stress
b)Elongation under load Âą175%(max)
c)Permanent Elongation after cooling 15%(max)
(iv)Shrinkage
a)Treatment temperature duration 130Âą3ËC
6h
b)Shrinkage 4%(max)
īˇ Moisture Barrier:
īˇ Laminated Tape: This shall be plastic coated non-ferrous metal tape
longitudinally applied suitably sealed.
īˇ Lead Alloy Sheath:- The metallic sheath shall be of lead Alloy E
conforming to requirements.
īˇ Water Blocking Tape/Powder: This shall be synthetic non-woven
tape / synthetic powder with suitable water swellable absorbdent. The
tape /powder can be either non conducting or semi conducting.
īˇ Inner Sheath: The inner sheath shall be of PVC compound or
thermoplastic polythene compound. The PVC compound shall
conform to Type ST2 of IS 5851.
īˇ The thermoplastic polythene compound shall conform to the following
properties:
a)Tensile strength before ageing (min).
b)Elongation at break(min)
-before ageing 300%
-after ageing in air oven at 110Âą2ËC for 14 days
c)Hot deformation test â115Âą2 for 6 hours
-Max depth of indentation 50%
d)Carbon black content 25Âą0.5%
13. 13
īˇ Armour: It shall be of non-magnetic material wires.
īˇ Outer Sheath: The outer sheath may be of PVC compound or
thermoplastic polyethylene compound.
Table 3: Nominal Thickness XLPE Insulation
3.1CONSTRUCTION
īˇ Conductor: It shall be of stranded circular compacted construction
complying with the requirements of Class 2 of IS 8130. 1984. Where
necessary , segmental construction is permissible.
Table 4 Nominal cross section of conductor.
Voltage Grade UËŗ/U (kV) Smallest Nominal Cross Section
of Conductor( sq mm)
38/66 95
64/110 150
76/132 185
127/220 400
Voltage Grade UËŗ/U(kV) Nominal Thickness in (sq mm)
38/66 11
64/110 16
76/132 18
127/220 27
14. 14
3.2Conductor Screening: The conductor screening shall consist of a layer of
semi conducting compound extruded over the conductor. Semi- conducting
barrier tape tapes with suitable overlap may be applied between the conductor
and extruded conductor screening . Such barrier tape/ tapes when used shall be
compatible with the insulating material and suitable for operating temperature
of the cable. The minimum thickness of extruded conductor screening shall be
0.8mm.
3.4.Insulation: The insulation shall be extruded cross linked
polyethylene(XPLE), refer XPLE properties table. The average thickness of
insulation shall be not less than the nominal value (t1) specified in the
table.The smallest of the measured values of thickness of insulation shall not
fall below the nominal value (t1) specified in the table by not more than 0.1 t1.
3.5 Insulation Screening: The insulation screening shall consist of two parts
namely, metallic and non metallic.
īˇ Non âmetallic Part:-It shall consist of a layer of semi-conducting
compound extruded directly over the insulation .Conductor screening
insulation and insulation screening shall be extruded in one operation. The
minimum thickness of extruded insulation screening .Such barrier
tape/tapes when used shall be compatible with insulating material and
suitable for operating temperature of the cable.
īˇ Metallic âPart:-The metallic part of the screening shall consist of Copper
wires /Copper tape(s) helically applied over lead alloy sheath or non-
metallic screening. The diameter of copper wire in the screening shall be
not less than 0.8mm .The perpendicular gap be more than 4.0mm.The
nominal thickness of the tape shall not be less than 0.1mm.The minimum
thickness shall not fall below the nominal value by more than
10%.Abinder tape of copper shall be applied over the wire screen . The
nominal thickness of the tape shall be not less than 0.1mm .The minimum
thickness shall not fall below the nominal value by more than 10%.Where
the lead Alloy sheath is provided over the non-metallic part of the
15. 15
insulation screening as moisture barrier , it shall form the metallic part of
the screening.
īˇ Moisture Barrier: The moisture barrier shall be provided as given below:
a)Water blocking tape/ powder shall be suitably applied; and
b) Laminate tape shall be applied longitudinally with overlap and sealed;
or metallic sheath of lead alloy âEâ shall be applied by extrusion.
īˇ Metallic Sheath: It shall consist of extruded metallic sheet of Lead Alloy
âEâ and thickness not less than 19mm.
īˇ Inner Sheath:-For armoured cables the inner sheath can be applied on
moisture barrier or the metallic screen. The thickness of inner sheath
should not less than 9mm.
īˇ Armour: It shall consist of non- magnetic metallic wires helically applied
over inner sheath.
Table 5 Dimensions of armour wire
Calculated
diameter of
armour
Nominal diameter
of round wire
(mm)
Above Up to & including
- 40 20
40 55 250
55 70 315
70 - 400
The armour shall be applied as closely as possible. The direction of lay armour
shall be left hand. Joints in armour wires shall be made by welding and surface
irregularities shall be removed. A joint in any wire shall be atleast 300mm
from the nearest joint in any other armour wire in the completed cable .
16. 16
īˇ Outer Sheath: The outer sheath shall be applied by extrusion. It shall be
applied :
a) over the moisture barrier or metallic screen unarmoured cables , and
b) over the armour for armoured cables. A binder tape may be applied under
the outer sheath. The colour of the outer sheath shall be black.
-The thickness of outer sheath âunder Unarmoured cables :the thickness of
outer sheath of unarmoured cables determined by taking the average of a
number of measurements shall not be less than the nominal value specified in
the table and the smallest of the measured values shall be not less than the
minimum value specified 1.72mm.For armoured cables âthe thickness of outer
sheath at any point for armoured cables shall not be less than the minimum
value of 1.72mm.
Table 6 :Thickness Of Outer sheath
Calculated
diameter under
outer sheath
Thickness of
outer sheath
for
unarmoured
cables
Minimum
outer sheath
for armoured
cable
Above Up to &
including
Nominal Minimum
- 40 2.4 1.72 1.72
40 45 2.6 1.88 1.88
45 50 2.8 2.04 2.04
50 55 3.0 2.20 2.20
55 60 3.2 2.36 2.36
60 65 3.4 2.52 2.52
65 70 3.6 2.68 2.68
70 75 3.8 2.84 2.84
75 - 4.0 3.0 3.0
17. 17
3.5TYPE TESTS:-
a)Test on conductor
I)Annealing test (for copper)
II)Resistance Test
b)Physical test on insulation
I)Test for thickness and dimensions of insulation
II)Tensile strength and elongation at break
III)Thermal ageing in air oven
IV)Hot set test
V)Shrinkage test
VI)Void and contaminants test
c)Resistivity test for semi-conducting layers
d)Test for concentric metallic screen.
I)Test for concentric copper wire
II)Test for concentric copper tape
e)Test for metallic sheath
f)Test for armouring material
i)Dimensions
ii)Tensile strength and elongation at break
iii)Wrapping test
iv)Resistivity test
g)Physical tests for outer sheath
1)Measurement of thickness
2)PVC sheath
i)Tensile strength and elongation at break
ii)Thermal ageing in air oven
iii)Loss of mass
iv)Heat shock test
v)Hot deformation test
vi)Shrinkage test
vii)Thermal stability
3)PE sheath
i)Carbon black content
ii)Tensile strength elongation at break before and
after ageing
iii)Hot detormation
h)Flammability Test(for PVC outer sheathed
cables only)
j)Water tightness test
k)i)Thermal ageing on complete cable sample
ii)Tensile strength and elongation break for
insulation and outer sheath
iii)Resistivity test for semi-conducting layer
m) Bending test followed by PD test
n) Dielectric power factor and capacitance
18. 18
measurement at ambient temperature
p)Dielectric power factor and measurement at
elevated temperature
q)Load cycle test followed by PD measurement
r)Impulse withstand followed by HV test
Acceptance Test: The following shall constitute acceptance
tests:
a) Conductor resistance test
b) Annealing test
c) Test for dimensions of insulation
d) Hot set test for insulation
e) Void and contaminants test
f) Test for thickness of metallic sheath
g) Test for thickness of outer sheath
h) Partial discharge test
j) High voltage test
k) Measurement of capacitance
NOTE â Partial discharge test shall be carried out on
full drum length
Routine Test: The following shall be carried out as
routine test:
a) Conductor resistance test
b) Partial discharge test
c) High voltage test
Optional Test: Cold impact test shall constitute the optional test.
Integrated Optical Fiber Unit: The optical fibers in power cables can be used for
measuring the actual temperature along with the cable line or for data transmission.
Fiber units are normally embedded under the lead sheath or between the screen wires.
The temperature monitoring provides continuous monitoring of cable temperatures,
detecting hot spots, delivering operational status, condition assessments and power
circuit rating data. Ideal for use in high voltage cables, it provides reliable temperature
measurements and is immune to electromagnetic interference.
19. 19
Standard Specifications: KEI MANUFACTURES Extra high voltage according to
various international or national standards. Such as IEC: 60840, IEC:62067,
IS:7098(P-3)/93.Cable are also designed specially to customerâs requirement.
3.6.POPULAR CONSTRUCTIONS:
(A)Single Core XPLE insulated power cable with copper wire screen and foil
laminated sheath:
1. Conductor: Longitudinally watertight segmental stranded stranded and
compacted Copper or Aluminum.
2. Binder Tapes: Semiconducting water blocking tapes compound.
3. Conductor Screen: Extruded semiconducting copolymer compound.
4. Insulation: Extruded super clean XPLE compound.
5. Insulation Screen: Extruded semiconducting copolymer compound.
6. Bedding: Semiconducting water blocking tapes.
7. Metallic Screen: A layer of copper wire helix and a copper contact tape in
open helix.
8. Separation Tape: Semiconducting water blocking tapes and binder tapes.
9. Radial Water Barrier: Aluminium or copper foil laminate.
10. Outer Sheath: Extruded PE of HFFR.
20. 20
Figure 2
(B)Single Core XPLE insulated power cable with Lead sheath/ corrugated
Aluminium sheath
1. Conductor: Longitudinally watertight segmental stranded or compared
Circular Copper or Aluminum.
2. Binder Tapes: Semiconducting water blocking tapes compound.
3. Conductor Screen: Extruded semiconducting copolymer compound.
4. Insulation: Extruded super clean XPLE compound.
5. Insulation Screen: Extruded semiconducting copolymer compound.
6. Bedding: Semiconducting water blocking tapes.
7. Metallic Screen : A layer of copper wire helix and a copper contact tape in
open helix (if required).
8. Water Blocking Tape.
9. Metallic Sheath: Extruded Lead, alloy E/Corrugated Aluminium.
10. Outer Sheath: Extruded PE, PVC or HDFR.
21. 21
The electrical properties and continuous current rating apply for Lead sheathed cable
with our normal sheath thickness. The thickness of sheath and especially the cross
section of Copper screen can be adjusted according to required short-circuit rating of
sheath or screen. Where loading is cyclic , appreciable increase in current capacities
may be justified. In cable circuits having no magnetic saturating materials the positive
and negative sequence impedances are equal and can be deduced from tabulated
effective resistance and inductance values corrected as required for frequencies other
than 50Hz. Zero sequence impedance for solidity bonded systems can be roughly
esteemed as the sum of the resistances of conductor , sheath and a reactance of 0.05 to
0.1ohms/km depending on the proportion of diameters of sheath and conductor at 50
to 60Hz. For single point bonded systems , the zero sequence , impedance depends on
the ground wires and any other grounded metallic objects along the cable route .
3.7.SELECTING A POWER CABLE: Different kinds of power cable construction
are required to transport electrical energy from the power station to the consumer. The
following factors are important when selecting a suitable cable construction:
īˇ Maximum operating voltage
īˇ Insulation level frequency
īˇ Load to be carried
īˇ Daily load curve
īˇ Magnitude and duration of possible overloads currents phase âto -phase and
phase to earth and cable line (whether directly or via a transformation)
īˇ Insulation level of equipment (bare conductor, insulators, arresters, etc.)
īˇ Voltage Drop
īˇ Length of line
īˇ Profile of line
22. 22
īˇ Mode of Installation
-Underground (Whether directly or in ducts )
- In air( if in a tunnel , the dimensions and the mode of ventilation of tunnel)
īˇ Chemical and physical properties of the soil
īˇ Maximum and minimum ambient air and soil temperatures , bearing in mind
nearby hot water pipes and other factors liable to heat the cables .
īˇ Specifications and requirements to be met .The cross-sectional area can be
calculated based on the capital costs of the cable and its running costs incurred
by the power losses in the cable.
Voltages Used :
Rated Voltage: The voltage which forms the basis for certain operating
characteristics and test conditions is called the rated voltage and test conditions is
called the rated voltages and is denoted UËŗ/U where
UËŗ=The voltage between the conductor and earth or earthed metallic cover
(Concentric conductor , screen, armoring , metal sheath)
U= The voltage between the phase conductors .
Operating Voltage:
Um=The maximum continuously permissible operating voltage of the network at
any time or any art of the network, excluding temporary fluctuations such as those
occurring during switching or faults.
23. 23
3.8.Terminations For Polymer Cables: The terminations for polymer cables are
are designed to be used independently of any type of polymer cable or cable
manufacturer from 7.25 to 550Kv and up to a conductor cross section of
2500mm².
Figure 3
24. 24
Termination Design: Terminations for polymer cables consist of a stress cone
with deflector, an insulating compound, an insulator a corona shield and a
terminal stud.
Properties of SiR stress cone: Stress cones are pre moulded sleeves which ensure
field grading between the outer semiconducting layer and the insulation. Made of
silicone rubber they combine outstanding electrical and mechanical properties
with excellent interface behavior .The electrical properties are designed to
minimize stress, whilst mechanical properties ensure optimum level of surface
pressure on the cable. The optimum surface pressure remains constant throughout
the lifetime of the termination. The deflectors are made of solid semiconducting
material. Although costly, this ensures that they function properly at voltage loads
and guarantees a long and reliable lifetime .For optimum electrical stress
distribution, stress cones are designed with help of computer simulations.
Quality in Production and Testing for Reliable devices: Our stress cones are
one piece and fabricated in -house in an extremely clean surrounding. To ensure
best quality, the fabrication is made computerized machines. For zero failure
production, every part is tested several times in the fabrication process. The stress
cones must pass a final acceptance test. Each device is certified individually. This
ensures that every stress cone leaving our factory is 100% reliable.
25. 25
Advantages of prefabricated and pretested SiR test cones are:
īˇ Very High breakdown strength of >23kmkV/mm at 50/60 Hz.
īˇ Excellent temperature stability of between -50 and +180°C.
īˇ Very high life exponent n>>40.
īˇ Excellent field grading performance at high frequency with deflectors of
solid material.
īˇ Optimum electrical stress distribution due to computer based design.
īˇ Zero failure guarantee with final high voltage pretesting.
īˇ Void free â contact pressure on the cable surface at normal and elevated
load conditions due to excellent elasticity of SiR.
īˇ Easy installation due to excellent mechanical properties and elasticity , no
mechanical forces needed.
Four Termination Types Available: For outdoor applications porcelain and
composite insulators. Terminations for SF6 gas insulated switchgears (GIS) or
transformers are made of epoxy resin insulators. Each type of termination has
specific insulating compound, which can be chosen according to customer
specifications âoil SF6.The corona shield is designed to minimize electrical
stress.The following fout types are:
īˇ Outdoor terminations with porcelain insulators.
īˇ Outdoor Terminations with composite insulators.
īˇ GIS terminations.
īˇ Transformer Terminations.
26. 26
Outdoor terminations with porcelain insulators: Excellent
resistance against ultraviolet radiation. Resistant against bird-
picking. Excellent track record in numerous countries and climate
zones. In service for more than 40 years at Brugg Cableith
outstanding results.
Outdoor Terminations with composite insulators: It is light
weight , easy to handle , resistant against UV radiation. Excellent
hydrophobic behavior , explosion proof and earthquake proof and
excellent track record in numerous countries and climate zones.
GIS Terminations: These were developed using for use in SF6
gasinsulated switch gears(GIS).Made with cast resin body,
they designed to fit perfectly into your GIS .It is light weight,
easy to handle , classically tried and tested design with high
tolerances for cables and applications. Excellent track record
in numerous countries and climate zones.
Figure 4
Figure 5
Figure 6
27. 27
Transformer Terminations: Have a cast resin body
and are designed to fit perfectly into the transformer.
Light weight and easy to handle , classically tried and
tested design with high tolerances for cables and their
application. Excellent track record in numerous
countries and climate zones.
3.9.Terminations for oil filled cables :Terminations for oil filled cables are designed
to be used independently of any type of oil filled cable or cable manufacturer from
72.5 kV to 420kV and up to a conductor cross section of 2500mm².
Termination design: Terminations for oil filled cable consist of paper taped stress
cone , an insulating liquid , an insulator , a corona shield and terminal stud .
Prefabricated stress cones: The prefabricated paper-taped stress cones are tried and
tested design that has been used for terminations of Brugg cables for 70 years. The
main advantage is that the coils for stress cone are prefabricated in a clean and dry
environment at the factory. After a high quality process of taping , drying and
impregnation, the coils are stored and delivered in sealed and oil- filled containers.
Consequently, the coils remain dry in any degree of humidity and oil âimpregnated
for the installation. For the best solutions the prefabricated cones are made as per
customer specifications.
29. 29
Advantages of prefabricated design:
īˇ High degree of quality and reliability due to production of prefabricated paper-
taped coils in a clean dry environment.
īˇ Very good thermal stabality of up to 85ËC.
īˇ Excellent field grading performance at normal frequency and higher frequency
load.
īˇ Can be applied under the super vision of the Brugg personnel.
īˇ Excellent track record in all environment , laying condition and climate zones.
īˇ In service for more than 70years at Brugg cable with outstanding results.
The four termination types available are same as for the polymer cables .
3.10.Joints for polymer cables: These are designed to be used independently of any
type of polymer cable or cable manufacturer from 72.5 to 550kV and up to conductor
cross section of 2500m².
Figure 8
30. 30
Joint Design: It consists of polymer cables of conductor clamp, an insulation body
with semi conductive deflectors and middle electrode, a moisture barrier, a
mechanical protection and connections of outer conductor.
Variety of Conductor Clamps: Conductor clamps connect both conductor ends of
the cable. Their main task is to ensure a low contact resistance during lifetime. Our
joints are designed to suit all common types of conductor clamps. Due to their main
advantages, such as being easy to apply, we recommend the use of screwed conductor
clamps.
Outstanding Protection for Sir Insulation Body: The insulation body consists of
semi conductive deflectors at both sides, semi conductive middle electrode and
insulation compound. It ensures field grading between the semiconducting layers of
the cable and conductor clamp. Made of silicone rubber (SiR), the insulation body
combines outstanding electrical and mechanical properties with excellent interface
behavior.The electrical properties are designed to minimize stress, whilst mechanical
properties ensure an optimum level of surface pressure on the cable. The optimum
surface pressure remains constant throughout the lifetime of the joint. The field
grading deflectors and middle electrodes are made of solid semiconducting material.
Although costly, this ensures that they function properly at all voltage loads and
guarantees a long and reliable lifetime. For optimum electrical stress distribution, the
insulation body is designed with the computer simulations.
Quality in Production And Testing For Failure Free Devices: Our insulation
bodies are one piece and fabricated in house in an extremely clean surrounding. To
ensure best quality, the fabrication is made with computerized machines. For zero
failure, every part is tested several times in the fabrication process. The insulation
bodies must pass a final acceptance test. Each device is certified individually. This
ensures that every joint leaving is factory is 100% reliable.
31. 31
Main Advantages Of Prefabricated And Pretested Sir Stress Cones Are:
īˇ Very high breakdown strength of > 23kV/ mm at 50/60 Hz.
īˇ Excellent temperature stability of between -50 and +180°C.
īˇ Very high life exponent of >>40.
īˇ Excellent field grading performances at higher frequency with deflectors
and middle electrode of solid material.
īˇ Optimized electrical stress distribution due to computer based design.
īˇ Zero failure guarantee with final high voltage pretesting.
īˇ Void âfree contact pressure on the cable surface at normal and elevated
load conditions due to excellent elasticity of SiR.
īˇ Easy to install due to excellent mechanical properties and elasticity , no
mechanical forces needed.
Moisture Protection Shield: Our standard joints are equipped with real transverse
moisture barrier made of metal shield .This gives 100% moisture protection to the
joint and results in prolonged lifetime making it highly reliable. In its basic version,
the barrier is a metal sheet. In the sophisticated version , the moisture barrier is metal
tube .
Variety of Designs For metallic protection: High reliability and a long lifetime are
further ensured by the first rate mechanical protection of the joint. Suited to the
diverse applications of the customer, we offer a wide variety of mechanical protection
designs. Basic protection is provided by heat sink cover. For a higher degree of
protection, steel or copper housing and /or a box of Polyester can be chosen. The
polyester protection box is filled with an insulating compound, giving excellent
sealing to the joint . The different designs of mechanical protection enable to select
the best technical and cost efficient solution for application.
32. 32
Protection designs for polymer cable joints are :
īˇ Metal sheet with heat shrink cover .
īˇ Metal sheet with protection box.
īˇ Cu- tube with coating of high density polyethylene(HDPE coating).
īˇ Cu-tube with protection box.
īˇ Steel housing.
īˇ Steel housing protection box.
These polymer joints are specific to Brugg stds.
Figure 9
33. 33
Table 7
Advantages Heat Shrink
Cover:
Extremely
compact
dimensions.
Total sealing
against
moisture. Cost
effective
Protection
Box: Good
mechanical
protection in
different
environments.
Total sealing
against
moisture.
Cu- tube with
HDPE
coating:
Compact
dimensions.
High degree of
mechanical
protection.
Total sealing
protection.
Steel housing
and
protection
box: Highest
degree of
mechanical
protection.
Total sealing
against
moisture.
Application For limited
dimensions,
such as small
manholes. In
tunnels or
concrete
manholes
without
permanent
water ingress.
In all types of
laying such as
tunnels,
concrete pits or
directly buried
installations. In
buried
installations
with humid
soil.
In all types of
laying such as
tunnels,
concrete pits or
directly buried
installations. In
installations
with
permanent
humidity or
shallow water.
In all types of
laying, such as
in tunnels,
concrete pits or
directly buried
installations. In
installations
with
permanent
humidity or
shallow water.
šdescription for joints of voltage level 145kV
²description for joints of voltage level 550kV
Âŗdescription for joints of all other voltage levels
34. 34
High Flexibility in earthing: Earthing of joints can be made according to
customer specifications .All joints are designed so that direct or indirect earthing ,
straight through connection or cross bonding can be released.
Figure 10
Slip âon Joints: Are joints most frequently applied when it comes to any type of
polymer cable. These joints at Brugg cables profit from the outstanding properties
of the prefabricated one piece and pretested SiR slip âon insulation bodies. All
joints are designed and tested according to international standards, such as IEC
60840 or IEEE Std 404-2000 .
35. 35
Advantages:
īˇ Very compact dimensions
īˇ 100% failure free pretested one- piece SiR slip-on bodies.
īˇ Total moisture barrier with standard use of metal sheet.
īˇ High variety in application with different types of mechanical protection
design.
īˇ Easy to handle and fast and easy to install.
īˇ No preload needed during transport or storage due to design with SiR slip-
on bodies.
īˇ Excellent track record in all environments, laying conditions and climate
zones.
īˇ At service for more than 20 years at Brugg Cables with outstanding
results.
Profit from advantages of our slip âon joints for polymer cables. All joints for
polymer cables are designed to be used independently of any type of polymer cable or
cable ,manufacturer from 7.25 to 550kV and up to a conductor cross section of
2500mm² .
3.11.Joints for oiled filled cables:Our joints are for oil- filled cables are designed to
be used independently of any type of oil- filled cable or cable manufacturer from 72.5
to 420kV and up to a conductor cross section 2500mm².
36. 36
Figure 11
Joint Design: Joints for oil filled cables consist of a conductor clamp, a paper taped
insulation , a moisture barrier , a mechanical protection and an earthing link.
Prefabricated Coils: The prefabricated coils are a tried and tested design that has
been used for Brugg Cables joints for more than 50 years.The main advantage is that
the coils are stored and delivered in sealed and oil â filled containers .Consequently ,
the coils remain dry in any degree of humidity and oil pregnated for tapping during
installation.
37. 37
Advantages of paper taped design:
īˇ High quality and reliability of the paper-taped coils .
īˇ Very good thermal stability of up to 85°C.
īˇ Excellent field grading performances at normal frequency and higher
frequency load .
īˇ Can applied under supervision of Brugg Personnel
īˇ Excellent track record in all environment laying conditions and climatic
zones.
Joints for oil â filled cables are:
īˇ Straight through joints
īˇ Stop joints
Moisture Protection with metal housing: Joints for oil-filled cables come with a
standard metal housing. This acts as radial moisture barrier. Together with mechanical
protection of the joint, it guarantees a prolonged lifetime making it highly reliable.
Straight through joints for oil filled cables: A wide range of straight through joints
is offered by Brugg cables for oil filled âcables.
38. 38
Figure 12
Advantages:
īˇ Tried and tested design.
īˇ Total moisture barrier due to metal shield
īˇ Available with different types of mechanical protection.
īˇ Can be applied under supervision of Brugg Personnel
īˇ Usable with a standard pressure of 10 bar , higher pressure values for special
applications possible.
īˇ Excellent track record in different laying and climatic zones.
Profit from the advantages of our joints for oil âfilled cables. All joints for oil
filled cables are designed to be used independently of any type of oil filled
cable or cable manufacturer from 72.5 to 420kV and up to conductor cross
section of 2000mm².
Stop Joints for oiled filled cables: These joints are used to limit the oil
pressure of cables that have to overcome differences in height .All joints are
designed according to international standards IEC 60141-1.
39. 39
Advantages:
īˇ Tried and tested design
īˇ Total moisture barrier due to metal shield.
īˇ 100% oil stop at the joint.
īˇ Usable with standard pressure of 10bar, higher pressure values for
special applications possible.
īˇ Available with different types of outer mechanical protection.
īˇ Excellent track record in different surroundings and climatic zones.
Types of Stop Joints:
īˇ Standard stop joint
īˇ Stop joint with back to back design
High Flexibility in earthing: All stop joints can either be chosen with cross bonding
or with screen interruption.
These specifications are specific to Brugg Cables
Figure 13
40. 40
Table 8
Advantage Standard stop joint:
Highest degree of
mechanical protection in
different environments.
Total sealing against
moisture penetration .
Stop joint with back âto
back design: Highest
degree of mechanical
protection in different
environments. Total
sealing against moisture
penetration.
Application In all types of laying ,
such as tunnels , concrete
or buried installations. In
installations with
permanent humidity or
temporary flooding.
In laying with concrete,
such as in tunnels or
concrete pits. In insulated
formations.
3.12Transition Joints:These joints are used to connect polymer with paper insulated
cables. They consist of conductor clamp , SiR stress cones with an insulator for the
polymer cable side and paper insulated cable ties. Transition joints are covered by a
moisture and a mechanical protection, and have an earthing link.
Conductor Clamps:-Conductor clamps connect both conductor ends of the cable
.Their main task is to ensure a low contact during lifetime. Although different
conductor clamps are possible, we recommend using pressed clamps for the conductor
connection of transition joints.
41. 41
Outstanding properties of SiR stress cone and insulator of the polymer cable side
:The stress cone and insulator of the polymer cable side are the same as those used
for conventional GIS or transformer terminations .Thus, the transition joint profits
from the well proven , prefabricated and pretested silicone slip on stress cones of
Brugg Cables .The hydraulic oil barrier is achieved with epoxy insulator of the
polymer cable side . All components within the insulator are completely separated and
connected to an external stainless steel expansion tank. Stress cones for the paperâ
taped cable side are of the same reliable and qualitative design as those paper taped
joints or terminations. Thus the transitions joints profit from well proven, paper taped
coils of Brugg cables. The main advantage of transition joints is their excellent quality
and enduring reliability. They can be installed independently of any type of low
pressure oil filled (LPOF) or high â pressure pipe type (HPPT) cable.
Types of transition joints:There are 2 types of
īˇ single core transition joints: are used to connect single core polymer â
insulated cables to different types of single core paper ânsulated , or
paper/ polypropylene- insulated cables .
īˇ three core transition joints :Are used to connect a three core polymer â
insulated cable with three single core paper insulated or paer
/polypropylene insulated cables.
43. 43
Table 9
Advantage High degree of
mechanical protection
in different
environments.â Total
sealing against moisture
penetration.
Highest degree of
mechanical protection
in different
environments
â Total sealing against
moisture penetration
Application In laying with concrete,
such as in tunnels
or concrete pits
â In insulated
formations
In all types of laying,
such as in tunnels,
concrete or
buried installations
â In installations with
permanent humidity or
temporary
flooding
Earthing Straight through
connection, not
insulated
to ground
Screen interruption,
insulated to ground
4.HT Cables: KEI manufactures HT XLPE cables up to 220KV conforming to
National and International Standards at Bhiwadi plant. KEI has State of Art HT cable
plant with German technology. The manufacturing capability is upto 220KV.We have
CCV line with a Single point triple extrusion and computerized sophisticated control
and monitoring systems.
The CCV line was imported from Machinenbau Scholz GMBH & Co KG, a pioneer
in this technology and have supplied more than 250 lines world over.HT plant is
complete with heavy duty machines for wire drawing and conductor making, laying
up, armouring , sheathing and packing.The process commences with a compacted
circular conductor being fed from the pay off stands into the extruder on elevated
platform. The conductor passes through extruderâs crosshead, it is covered first with
semiconducting screen layer then the XLPE insulation, followed by the outer
semiconducting core screen.
44. 44
This crosshead is specially designed to feed three compounds from three extruders at
one point described as Singe point Triple extrusion.Thereafter, the extruded core
enters and passes through vulcanizing line known as CCV line (Continuous Catenary
Vulcanising) and the XLPE insulated core is cured in the process. In CV line inert
atmosphere is maintained by the Nitrogen gas which is at high pressure and high
temperature.This process is popularly known as Single point Triple extrusion
CDCC(Completely Dry Cured and Cooled Curing) Process.Over the cured core a
copper screening is provided by lapping of copper tape or for special requirements a
layer of copper wires is provided. Core is tested for Partial Discharge and then as per
requirement; the cores are laid up with fillers, provided with inner sheath, armoured
and sheathed. Sheath can be of PVC, HDPE, FRLS, ZHFR, PCP or CSP compound.
KEI manufacturing plant and process ensures great XLPE cables for the new age
Power sector and industry. Our modern plant takes full advantage of the new
generation XLPE compounds which offer fast curing and superior electrical
parameters, dimensional control and higher productivity.Triple Extrusion and CDCC
process ensure contamination free cores. All three layers are bonded and core has
least eccentricity and ovality. Insulation itself is free of micro voids and with
negligible moisture content.To control the manufacturing process the line has been
provided with many sophisticated instruments and servo controls
all monitored by the computer. Important systems are:
X Ray Non touch sensors of SIKORA make for thickness and dimensional control.
This system continuously measures the dimensions of insulated cores. Unit has
capability to measure multilayer dimensions in all directions and record and analyse
the data on line.CCV tube has a Touch Less Sag control system. This ensures no
marks/lines on core unlike older lines.
Computerised control system ensures optimum efficiency, fast start up,
synchronized operations of compound feeds, three extruders, CCV line gas
temperature zones, pay off and takeup.Nevertheless KEI XLPE cables compare better
than those produced with older plants when checked for Microvoids, Moisture
content, PD levels, dielectric strength.
45. 45
We have strict Quality plan and fully equipped Testing laboratory to ensure cables of
best quality are produced as per the design and specifications prescribed. Cables have
been type tested as per International Standards.Inventory and production plans are
controlled by BANN ERP system. This ensures reliable and prompt delivery and
operational efficiency.KEI offers variety of designs to suit different installations viz.
Aerial Bunched cables, Water tight construction, Stainless steel armouring, for
Offshore and Ship installations etc.We have many satisfied customers from many
countries and diverse industry. We shall announce the expansion of our range beyond
220KV very soon.
5.LT CABLES: KEI INDUSTRIES LIMITED is manufacturing LT Power Cables
with PVC or XLPE insulation of voltage grade upto 3.3 KV conforming to various
Indian and International Standard Specifications. KEI also manufactures other types
of cables as listed at the end of this catalogue.
6.CROSS LINKED POLYETHYLENE (XLPE):-XLPE means cross-linked
polyethylene or vulcanized polyethylene. The basic material is low density
polyethylene. Polyethylene is a thermoplastic material consisting of long chain of
hydrocarbon molecules. At elevated temperatures these molecules tend to move
relative to one another so that the material becomes increasingly deformable and will
eventually melt at the temperature around 110oC.By means of process similar to the
vulcanization of rubber the polyethylene molecules can be cross-linked. The process
of cross-linking or vulcanization consists of producing chemical bonds at interval
between the long molecular chain to give a âladderâ effect which prevents slippage
between molecules. As a result of cross-linking the material becomes heat resistant
and does not soften at higher temperatures. Further it has better resistance to stress
cracking and good resistance to ageing in hot air. With the change of structure there is
no adverse effect on electrical properties.
46. 46
Advantages of âKEIâ XLPE CABLES
īˇ Dielectric losses are very small.
īˇ Higher current carrying capacity.
īˇ Higher short circuit rating 250oC. as against 160oC for PVC.
īˇ KEI XLPE can retain flexibility down upto - 40oC.
īˇ Jointing and Termination is easy.
īˇ Light in weight.
īˇ They are not prone to fatigue damages due to vibrations or loading cycles.
īˇ Has better resistance to most chemicals, oils, acids, etc.
īˇ Can be installed along cable routes without elevation limitations.
47. 47
7.CONTROL CABLES :- A multi strand cable for transmission of info on the state ,
location or operating conditions of objects being controlled it is used where direct
access to such objects is difficult or impossible. Control cables occupy an
intermediate position between power cables and communication cables. They are
widely used to connect electric instruments and apparatus for secondary switching of
remote â control starters and regulators for protective relaying and in automation . In
contrast to communications cables , control cables are capable of carrying current
loads . Their strands consist of single copper or aluminum wires ( 4 to 61 strands with
a cross section of 1-10 sq mm for a cross section from 4- 10 sq mm the strands does
not exceed ten). The insulation of the cable is a made of rubber, polythene or PVC
and sheath is made of lead or plastic. Control cables have certain abbreviations
signifying the type of component used in making the cable.
A=Aluminium
Y=PVC
2X=XPLE
W= Galvanized Steel wire armour
Wa =Aluminium Round wire armoured
Fa= Aluminium Flat Strip Armourred
F=Galvanized Flat Strip armoured
3Cx 185sqmm= C stands for core
A2XWY= Aluminium âXPLE/wire/PVC
AYY= A-PVC-PVC
48. 48
8.INSTRUMENTATION CABLES:KEI Industries Limited manufactures a wide
variety of cables suitable for process instrumentation. In the projects related to power
generation & distribution, chemical & fertilizer industries and various other types of
engineering industries, the process instrumentation plays a vita role in measurement,
supervision and control of the process.
Introduction of microprocessor based/computerised instrumentation has demanded
stringent quality requirements along with special electrical parameters for
instrumentation cables. Very low level electrical signals pass between measuring end
and display units/controllers which are situated far off.
These low level signals are prone to external noise pickups and heavy silenuation
during transmission.All this means that the cables to be used for instrumentation
should be designed and manufactured very carefully, KEI with its meticulous efforts
in maintaining quality, stringent in process control during manufacture and the
knowledge of cable designing, is proud to say that it is capable of supplying
instrumentation cables meeting any Indian/International standard or a specific
requirement desired by project authority.
The efforts done by KEI are reqarded by acceptance of our quality by the country's
prime organisations such as NTPC, PDIL, EIL, BHEL, TATA's, IOCL, L&T, ABB,
KRUPP Ind, BPCL., HPCL, ESSAR, SIEMENS, Electricity Boards, Reliance, IOTL,
Mukand, Honeywell, etc.
49. 49
Range of Instrumentation Cables:-
Conductor:
0.4 mm dia (0.126 Sq.mm) to 2.5 sq.mm. or higher sizes of
electrolytic copper wire, Tinned/untinned, solid/stranded copper
conductors.
Insulation:
70/85/105oC. Grade PVC, Polyethylene, Halogen Free FRLS
Polymeric Compounds.
Elements:
Pairs/Triples/Quads, colour coded/number printed ring marked/dual
colour extruded.
Shields:
Aluminium Polyester tape screen with Copper drain wire or
alternately with with Copper wire braiding. Individual element or
overall shielding as specified.
Element
laying:
Concentric formation or unit & group formation as per applicable
specification.
Amounting: Galvanised steel wire/strip amount.
Sheathing: PVC 70/90oC. grade, PVC FRLS, ZHFR, CSP, PCP, EVA, etc.
Specification:
BS:5308 (1 & 2), iec-189 (1 & 2), VDE 0815, ENI 0181.00 and
customers specifications.
50. 50
Typical Instrumentation Cable Constructions
Figure 15
9.THERMOCOUPLE EXTENSION:- These cables can also be termed
as instrumentation cables, since they are used for process temperature measurement.
The construction is similar to paired instrumentation cable but the conductor material
is different. Thermocouples are used in processes to sense temperature and is
connected to the pyrometers for indication and control.The thermocouple and
pyrometers are electrically conducted by thermocouple extension/compensating
cables. The conductors used for these cables are required to have similar thermo-
electric (emf) properties as that of the thermocouple used for sensing the temperature.
The cables are manu-factured as per IS:8784, ANSI-MC 96. 1, B.S., ENI, DIN and
customers specification.
52. 52
Figure 18
10.RUBBER CABLES: In keeping with the company's commitment to technological
advancement, elastomer materials such as Polychloroprene (PCP), Chloro-
Sulphoneted Polyethelene (CSP), Nitrile Rubber / PVC blends, Ethylene Propelene
Rubber (EPR), Ethylene Vinyle Acetate (EVA) and Silicone have been specially
compounded to meet numerous heat oil and fire resisting requirements. In the recent
years KEI has also developed special Elastomeric Fire Survival Cables for power,
control and instrumentation wiring. Elastomeric compounds for insulating and
sheathing of cables are formulated to meet the requirement of IS 6380, BS 6899, IEC
60502 and other international specification.
53. 53
General Construction (Conforming to IS 9968 Part 1)
Conductor:
Annealed tinned Copper wires Solid (Class 1), Stranded (Class 2),
flexible (Class 5)complying with the requirement of IS 8130-1984
Seperator
Tape:
Suitable material seperator tape may be applied over the conductor
Insulation:
General service elastomer compound Type IE1 of IS 6380-1984
Heat Resisting elastomer compound Type IE2 of IS 6380-1984
Silicone Rubber Type IE 5 of IS 6380-1984
Core
Identification:
Coloured insulation, Nos.PE tape, Coloured proofed tape, Nos.
printing
Fillers:
Natural or synthetic fibres or elastomer suitable for the operating
temperature and compatible with the insulating material
Sheath:
General service sheath Type SE1/SE2 of IS 6380-1984
Heavy Duty Sheath Type SE3/SE4 of IS 6380-1984.
Table 10: Working Temperature of Commonly used Elastomeric Insulating and
Sheathing Materials
Material
Max. Cond.
Temp.
for continuous
opertation
Deg C.
Max. Cond.
Temp. for
short
circuit
Deg C.
Min.
Working
Temp.
Deg C.
Natural Rubber (VIR & TRS) 60 200 -55
Ethylene PropyleneRubber (EPR) 90 250 -50
Polychloroprene(PCP) 70 200 -40
Chlorosupphonated Polyethylene(CSP) 90 200 -35
Silicone Rubber 150 / 180 350 -55
HR Natural Rubber (HR VIR) 75 200 -55
Styrene Butadience Rubber 60 200 -55
ButylRubber 85 220 50
54. 54
Table 11: Rubber Cables
ELASTOMERIC CABLES RANGE APPLICATION
CABLES UP TO 11KV Machine Trailing, Mining, Power
FLEXIBLE TRAILING CABLES
Reeling unreeling, Trailing, Festooning, Mobile
Machines, Cranes, Coal Handling and Conveyors
MINING CABLES
FT or Pliable Armoured or Landline type
As per IS 14494, NCB specs
for UG , Open cast, Coal or other mines and mining machines
THERMAL POWER PLANTS For coal handling plants, flexible power and control application
CABLES FOR STEEL PLANTS
Flexible and high temp withstanding cables for furnace, melting
shops, material handling
WIND ENERGY
Flexible cables for power and control for Wind Mill generator
connection
FIRE SURVIVAL CABLES Fire Survival for 3 Hrs or 20 Min
SHIP WIRING As per IEC specs and Naval specs DGS or DEFSTAN, NES
OFFSHORE and ONSHORE For Platforms and Rigs as per IEC and BS or NEK specs
SHORE SUPPLY AND GENERATOR
CABLES
For charging of ship batteries and supply frommobile generators
MOTOR COIL LEADS Elastomeric and Silicon as per IS, BS, or OEM specs
HIGH TEMP CABLES Silicon insulated, glass fiber braided or unbraided
PUMP CABLES For Water , submersible and sewerage pumps
CABLES FOR RAILWAYS Coach wiring, Metro railway
WIRES FIRE HFFR Low toxic emission under
PANEL WIRING
For flexible, high power high temp zone, polluted or moist
atmospheres
BATTERY CABLES For High current and long life
LOW TEMPERATURE
INSTALLATIONS
Suitable for subzero temp. installations and operations
MISC. APPLICATIONS
Outdoor High mast lighting, Site power supply, Whitegoods, Oil or
Chemical resistant
TYPES
Power and Control cables up to 61 Cores
Instrumentation Pairs 30 pairs, triads, quad
Wires, Flat cables
VOLTAGE GRADES 11KV, 6.6KV, 3.3KV, 1.1KV, 750V, 250V, 110V, 60V
CONDUCTORRANGE 0.5 to 630 Sq.mm
POLYMERS PROCESSED
EPR, EPDM, PCP, CSP, CPE, SILICON, EVA
HALOGENFREEAND FIRE RESISTANT COMPOUNDS
NON TOXIC COMPOUNDS
BRAIDING OFFERED ATC, GI wire braid, Syntheticor Textile yarn, Glass Fiber
ARMOURING Pliable armour or steel /copper wires/Stainless steel wires
55. 55
11.HOUSE WIRES :KEI industries has launched its new range of Flame retardant
PVC insulated wires for domestic household applications -homecab.Especially
designed for domestic house hold usage, Homecab a multi-strand flexible house wires
with fire resistant properties are equipped with specially formulated insulation, with a
high oxygen and temperature index, enables the cable to withstand overloads
preventing electric mishaps.
HOME CAB- FR.: KEI, is the name you have trusted for the past forty years, in the
wires and cables industry in India. It is a one-stop-shop for all your domestic cabling
needs. The KEI range of wires comes with a comprehensive Product Liability
Insurance Cover, ensuring safety for your home. KEI introduces Homecab wires,
multi-strand flexible house wires with fire resistant properties. Specially formulated
insulation, with a high oxygen and temperature index, enables the cable to withstand
overloads preventing electric mishaps.
Flame Retardant PVC lnsulated
Single Core Unsheathed Copper
Cables (Up to 1100Vdlts AC).
Conductor: The conductors, drawn from bright electrolytic grade copper are
annealed and bunched together.
Insulation: The bunched conductors are insulated with specially formulated FR PVC
compound with a high insulation resistance value. The insulation process is carried
out on modern high speed extrusion lines, which ensures high accuracy and
consistency in performance. Flame retardant properties enable the cable to withstand
overloads. The insulation is resistant to boiling water, steam and vapours. This
prevents ageing and cracking in kitchens, bathrooms, damp walls and chemical
industries.
Marking: The cables are printed with generic marking 'HOMECAB'. Colours: Red,
Yellow, Blue, Black, Green and Grey.
Packing: 90 Meters (approx. 100 yards) pack in protective cartons.
56. 56
Table 12
CON FLAME FRLS: KEI, is a name trusted for the past forty years. in the wires and
cables industry. in India. It is a one-stopshop for all your domestic cabling needs. The
KEI range of wires comes with a comprehensive Product Liability Insurance Cover.
ensuring safety for your home.KEI Conflame is ideal for wiring solutions in multi-
storied buildings, hotels, hospitals, commercial establishments and residential
complexes. It is shielded by a specially formulated flame retardant PVC compound.
During fire, ordinary PVC emits black smoke and toxic fumes which are acidic in
nature. This impairs visibility and hampers rescue operations. Conflame insulation
retards spread of fire and emits minimum smoke and toxic gases, thereby reducing the
risk of injury.
Flame Retardant Low Smoke PVC
Insulated Single Core Unsheathed
Copper Cable (Up to 1100 Volts AC)
57. 57
Conductor: The condtictors, drawn from bright electrolytic grade copper, are
annealed and bunched together.
Insulation: Bunched conductors are insulated with specially formulate" Flame
Retardant Low Smoke Compound. During a fire situation, the FRLS compound
restricts the spread offlame. The smoke emission is also minimal.
Marking: The cables are printed with generic marking 'CON FLAME'
Colours: Red, Yellow, Blue, Black, Green and Grey
Packing: 90 Meters (approx. 100 yards) pack in protective cartons
Table 13
58. 58
Table 14
BAN FIRE-ZHFR: KEI, is the name you have trusted for the past forty years, in the
wires and cables industry in India. It is a one-stop-shop for all your domestic cabling
needs. The KEI range of wires comes with a comprehensive Product Liability
Insurance Cover, ensuring safety for your home.KEI Banfire is processed using a
Zero Halogen Flame Retardant compound (ZHFR). The insulation is of superior
quality, 100% PYC free and eco friendly. In case of a fire situation Banfire does not
emit toxic or poisonous fumes, which enables safe evacuation. These wires are best
suited for wiring in hospitals, hotels, business establishments and high rise buildings
where fire can be detrimental.
Zero Halogen FIame Retardant
Insulated Single Core Unsheathed
Copper Cables (Up to 1100 Volts AC)
59. 59
Conductor: The conductors, drawn from bright electrolytic grade copper, are
annealed and bunched together.
Insulation: Bunched, specially formulated grade of Halogen Free Flame Retardant
(HFFR) compound is used. The insulation does not melt or drip in case of fire. The
smoke emission is transparent, non-toxic and minimal. The victims trapped in the fire
do not suffer suffocation and evacuation is convenient.
Marking: The cables are printed wit4 generic marking 'BANFIRE'.
Colours: Red, Yellow, Blue, Black, Green a.l1d Grey
Packing: 90 Meters (approx. 100 yards) pack in protective cartons.
Table 15
61. 61
12.SINGLE/ MULTI CORE FLEXIBLE WIRES: Single core flexible wires:
single core insulated copper conductor (unsheathed )flexible cable , 1100 voltage
grade for industrial application
i. High safety factors
ii. Compact construction
iii. Choice of superior insulation system for meeting IEC classification ,
temperature rise , protection etc.
īˇ MULTI CORE FLEXIBLE WIRES: Multicore flexible for appliances and
machine tools
i. Compact construction reduces weight per metre
ii. Rugged yet flexible for industrial use.
iii. High temp insulation
62. 62
Table 17
Type of
insulation
Type of
sheathing
Applicable standards Type of
applications
Standard
PVC
Standard
PVC ,
HRPC
IS694, BS-6500, IEC-60227,
DIN VDE 0281
power cords for
appliance ,
temporary power
supplies , 3 core
flat cables are
suitable for
submersible
pump
applications.
Heat
resistant
PVC upto
103°C
Standard
PVC,
HRPVC
IS694, BS-6500, IEC 60227
DIN VDE 0281
High power
appliances ,
ovens, temporary
power in higher
temp areas.
Standard
FRLS
PVC
FRLS(flame
retardant
IS 694, BS- 6500, IEC-60227,
DIN- VDE- 0281,
IEC â 60754-1,
IEC 603-32-1, BS- 4066-1
ASTMD 2843, ASTMD 2863
Power cords for
application used
in fire prone
areas, flame
proof equipments
machine tools
used in critical
locations and
heat zones .
63. 63
13.WINDING WIRES/ 3 CORE FLAT CABLES FOR SUBMERSIBLE
PUMPS:(HR/ PVC insulated winding as per IS: 8783(Part 4/ Sec 1)1995)
Keiâs PVC insulated winding wires for submersible pump motors serve more than 350
submersible pump manufacturers and thousands of rewinders across India with the
fine quality products . Keiâs winding wire is insulated with a superior grade of pvc
compound as per IS 5831 to give it the needed electrical strength and resistance to
abrasion the copper conductors used by KEI are of the highest level of purity and
conductivity these conductors are also annealed to stringent specifications. Although
proper care is taken while handling of the winding wire from manufacturing to
packaging stage , this product being delicate requires utmost care during storage and
insertion into stator slot for proper product performance .
Poly Wrapped Wires: Commonly known as submersible copper winding wire. the
copper conductor is wrapped with thin polyester film and biaxial oriented modern
plant with sophisticated wrapping heads and in line continuous heat shrinkage furnace
is installed to get uniform covering. A complete quality assurance testing by
instruments covering all governing stds is available. These are used in submersible
motors of all sizes for domestic and industrial applications. Available in coil form
with sustainable length as per size , in polythene bag and packed in inner and outer
corrugated boxes.
64. 64
Salient Features :
īˇ Saves energy â ETP grade high conductivity annealed copper used. Less
īˇ Current leakage â no air gap between the films .
īˇ Tear resistant â high mechanical strength â high tensile strength.
īˇ Each coil tested at 3500V.
īˇ Heat shock test at 150C.
īˇ Easy winding â resistance annealed copper and controlled OD.
īˇ Manufactured by ultra modern automatic plant.
The quality assurance having all testing facilities with ultra modern, high
precision instruments and rigorous testing plans.
Submersible Flat Cables (3 Core) for 1100V AC: Fits perfect required
Grommet. It is as per IS dimension. Perfect sheathing for under water
application.
Technical specifications: Nicely bunched high purity bright, electrolytic
grade , plain annealed copper with superb flexibility according to harmonized
grades H05V-K, H07V-K, BS , 6360 class 5 available in various sizes.
Insulation and sheathing: Generally available with general purpose insulation
and normal PVC sheathing choice of insulation sheathing is available on
special order.
65. 65
Figure 19
14.Stainless Steel Wires: KEI industries limited is an established player in
the Stainless Steel Wires segment and among the largest Stainless Steel Wires
manufacturing companies in India. KEI industries limited manufactures stainless
steel wires in various range for wide range of applications. KEI is one of the few
companies in country to manufacture speciality Wires fro very critical application.
KEI is perhaps one of the few companies in India to offer customers a unique
range of specialty SS Wires such as wide range with the best quality. An ability to
utilize more than 90% of its resources makes KEI one of the most efficient players
in the industry. The various types of stainless steel wires manufactured under the
stainless steel category are:
66. 66
īˇ Welding Wire: KEIâs stainless steel wire for welding electrodes wire are
manufactured having excellent mechanical properties , under strict guidance of
technical people , diameter from 1.60 mm to 5.00mm in Matte and Bright
finish and can supply in coil as well as in cut length .the commonly
manufactured grades are AWS ER 308, ER308L, ER309L, ER310, ER312,
ER316, ER316L.
īˇ Hard stainless steel wire : It manufactures stainless steel wire for springs
with excellent mechanical properties ( surface , cast and helix ) manufactured
under strict guidance of technical people , diameter from 0.19mm to 1.20mm
in bright finish and 0.50 mm to 6.0 mm in matte finish (coated )in grade of
AISI 302, 304 and 316, 321, Std ASTM A313 and others. It has following
characteristics :
īˇ Excellent surface finish
īˇ High corrosion resistance
īˇ Superior coiling efficiency
īˇ High fatigue strength.
In particular to provide optimum spring efficiency , this type of wire is
painstakingly finished to eliminate flaws.
īˇ Cold Heading wires: These are made by special heat treatment , copper â
bearing austenitic steel 302CHQ , 304HQ, normal 304 and 430 are also used
for cold heading fasteners.
ī Special Characteristics :-
Excellent corrosion resistance and mechanical strength and is most suitable
material for bolts , screws and other fasteners and has a marked work
hardening characteristics .All kei wires are coated to ensure smooth heading
operations condition. Cold drawn and annealed, cold drawn, annealed and skin
pass or as per customer requirement with very fine tolerance.
67. 67
īˇ Fine stainless steel wires: These wires are used in weaving, hoses and
braiding filters, fencing, knitting. The grades suitable for these applications are
304, 304L, 316; 316L.The surface finish of wires can be bright or matte
finished and high resistance to corrosion. Having regular winding pitch and
tension they are manufactured under strict process control. For knitting the
wire is equipped with mechanical properties (elongation, tensile strength ,
yield strength ) and good lubrication for high productivity.
īˇ Wires for general purpose: The stainless steel wires are used in engineering,
chemical, construction and many other industries besides various type of
application in manufacturing of Kitchens wares, ornaments, utensils. These
wires are manufactured as per International Standards as well as in accordance
with customers specifications.
ī Special Characteristics:-Produced from wire rods meeting International Stds.
Supplied in annealed, 1/8 hard, 1/4 hard and 1/2 hard, 3/4 hard, full hard
conditions. Drawn to very close tolerance limit. Excellent surface finish.
Quality checked at each process stage.
īˇ Wire for Kitchenware and Baskets: The Kei allows to manufacture Stainless
steel wires in bright as well as in matte finish, suitable for kitchenware and
basket , grade AISI 304 , in various sizes .Kei is a major market player for
wires in Electro polish quality. Balls, pins, nails and other general application.
īˇ Wire for Scrubber: For this purpose Kei offers a stainless wire with bright
smooth finish and its extra softness enables further cold working by
customers.
īˇ Stainless steel wire for wall Tie/Tying Wires Reinforcement bars: Keiâs
stainless steel wire find application in construction industry. Kei manufactures
stainless steel wires in grades of 302. 304. 316. 316Ti. In bright as well as
annealed condition. Suitable to manufacture wall tie. Tying wire as well as re
âinforcement bars for building and construction. The sizes offered are 0.9mm
to 8.0mm.
68. 68
15.Marine and Offshore Cables :Kei industries offers extensive wide range of
cables for industrial , power , control instrumentation , fire resistant and mud
resistant and infrastructure projects as per International specifications. Our marine
and off shore cables complement our offering of high performance cables for this
fast growing industry. Kei supply Marine and Offshore cables to important
projects of Indian defense shipyards and private shipyards around the world
.Cables have been supplied to renowned shipyards like Mazagon Docks , Garden
Reach Shipyard , Naval Dockyards, Goa Shipyard , Cochin Shipyard, Hindustan
Shipyard , Larsen and Toubro, Gunasua, ONGC in India and also exported to
Sime âDarby Malysia, ZADCO UAE, NPCC UAE, etc.
īˇ Construction:
īˇ Conductor: Tinned or untinned copper with stranding class 2 or class 5 from
0.5 to 1000 sq mm or 22-19 AWG to 2000Kcmil.
īˇ Solid single strand for communication cables as required.
īˇ Standards IEC 60228, BS 6360 or UL.
īˇ For Thermocouple Cables:-
īˇ KX, JX, EX,TX,KX/VX, SX/RX.
īˇ Insulations :
īˇ EPDM, XPLE, Halogen free EVA based, silicon rubber glass braided and
vanished, PE, PVC.
īˇ Dual layer EPDM+HF or PVC + Polyamide (Nylon).
īˇ Fiberglass tape insulation as per NES standard.
69. 69
īˇ Fire Resistant Cable: Heat barrier of glass mica tape lapped in double layer
shall be provided over the conductor , before the insulation.
īˇ Sheath:
īˇ Thermoplastic Halogen free Type SHF1, Cross Linked thermo set Type SHF2
or EVA, silicon ,FR PVC, HDPE, Mud Resistant SHF2.
īˇ PCP. CPE or CSP sheaths for EPDM or Silicon insulated cables.
īˇ TPR sheath
īˇ Oil resistant sheath also available in SHF2 or SW4 grade.
īˇ Braiding/Armour :
īˇ ATC wire ,plain copper , bronze , stainless steel Aluminium alloy wire
īˇ Copper braid of desired conductivity can be designed as required to meet
installation specific requirement or to serve as Earth continuity conductor.
īˇ Instrumentation Cables: Cores twisted in pairs , triads or Quadd to form an
element .
īˇ Screen Provision :
īˇ Each element can have individual screen or shielding of Aluminium Mylar
backed tape or copper Mylar backed tape .
īˇ Each unit has ATC drain wire
īˇ Multi element cable can have overall screen or shielding of Aluminium Mylar
backed tape or copper Mylar backed tape , with a ATC drain wire.
īˇ ATC wire braiding can be offered as alternative to tape type screen for an
individual element or overall screen .
70. 70
īˇ Special Protection:
īˇ Cables can be supplied with special sheath like Lead alloy or Polyamide
(Nylon) as a proven moisture barrier in highly contaminated areas. Cables not
having a lead sheath are ROHS compliant.
īˇ Core Identification and Sheath Color:
īˇ Standard color coding as per CENELEC for cores and Black or Grey for the
sheath.
īˇ However, we can provide any customized color coding as per project
requirement.
71. 71
Table 18: Specification Compliance
Specification Types Offered
IEC 60092-350,353 Power and control cables 0.6/0.1kV
EPDM, HEPR, or XPLE or Silicon
rubber or PVC insulated.
NEK 606 Power and control cables 0.6/01Kv
EPDM insulated RFOU, RFCU,
BFOU, BFCU.
NEK 606 Instrumentation cables 250 V EPDM
insulated RFOU(o), RFOU(i),
RFCU(o), RFCU(i), BFOU(o),
BFOU(i), BFCU(o), BFCU(i)
NAVAL STDS
NES 525 Small wires.
NES 526 & DEFSTAN 512 P3 Dual Extruded Insulation EPR +lFH,
LFH Sheathed Power and Control
cables.
ONGC OFFSHORE
FS 4011 Power, Control and Instrumentation
cables for offshore installations.
FS 3508 Instrumentation cables for Offshore
installations.
FIRE TESTS REFRENCE
IEC 60332-1-2- test Flame retardant test for single
insulated wire and cable.
IEC 60332-3-22-test Flame retardant (FR)-test for bunched
wires and cables , category A
IEC 60754-1,2 Halogen âevolution from insulation or
sheath material.
72. 72
Key Clients: (In Power and transmission)
īˇ Ahmadabad Electricity Corporation
īˇ BSES Ltd
īˇ CEB, Mauritius
īˇ Essar Group
īˇ NTPC
īˇ Jindal Power
īˇ Power Grid Corporation Of India
īˇ Tata Power
16.SOLAR CABLES: KEI has been at the forefront of Indiaâs wire and cable
industry for the last forty years. Solar photovoltaicâs is now, after hydro and wind
power, the third most important renewable energy source in items of globally installed
capacity. This results in the great demand for 'SOLAR CABLE'. Solar cable is the
interconnection cable used in photovoltaic power generation. A solar cable
interconnects solar panels and other electrical components in the photovoltaic system.
Matching step with the environment friendly shift the Solar Cable has been made
which performs highest standards of application in its diverse usage.
73. 73
Properties
īˇ A lifetime 'Partner' lasts up to 30 years even under tough conditions.
īˇ Used in extreme weather conditions.
īˇ Equipped with UV Resistance.
īˇ Halogen-free: low smoke emission and low toxicity during fire.
īˇ Flame & Fire retardant.
īˇ Flexibility & strip ability: for fast and easy installation.
īˇ Easily Recyclable: in accordance with new government norms.
īˇ Easy installation: with color identification.
īˇ Suitable to common connector types.
īˇ TUV, UTE and IMQ-certified.
īˇ One common factor for most of the photovoltaic power system is outdoor use,
characterized by high temperatures and high UV radiation.
Features
Chemical Features:
īˇ Weather resistant.
īˇ Resistant to mineral oils.
īˇ Resistant to acids & alkaline.
Thermal Features:
īˇ Ambient Temperature : -40oC ~ +90oC.
īˇ Maximum Temperature at Conductor: 120oC (20000h).
īˇ Short Circuit Temperature: 200oC at conductor (max. 5 sec).
74. 74
Electrical Features:
īˇ Rated Voltage: 0.6/1 kV AC .
īˇ Rated DC Voltage: 1.5 kV.
īˇ Maximum Permitted DC Voltage: 1.8 kV (conductor / conductor, non earthed
system, circuit not under load).
īˇ Maximum Permitted AC Voltage: 0.7/1.2 kV .
īˇ Working Voltage: DC 1000 V.
īˇ Insulation Resistance: 1000 MW-km.
īˇ Spark Test: 6000 Vac (8400 Vdc).
īˇ Voltage Withstand: 6500 V as per EN50395 for 5 min.
75. 75
17.CONCLUSION: The industry is progressing and caters to the commercial and
industrial demands efficiently by offering different types of cables based on the
customer specifications. The insulated cabling systems offers aerial (overhead) as
well as underground cabling systems but the drawback of aerial overhead cables is
that if they burst due to technical faults in the system it will cause much adverse
effects in terms of damage and expense. On the contrary the underground cables
although offer 500KV and are costly but adverse effects are minimum and durability
is more .The meggar meter reading is cumbersome job to manage for the underground
systems. The near future offers bright prospects for EHV, Solar , HV DC cables as
they are being used in the converters and inverters .
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18.REFERENCES:-
īˇ www.Kei-Ind.Com
īˇ Catalogue- The Power.
īˇ Pdf File Of Indian Standard Cross Linked Poly Ethylene Insulated Thermoplastic
Sheathed Cables.
īˇ High Voltage Xlpe Cabling Systems- Technical User Guide.
īˇ Submersible_Winding_ Wire_ Flat_Cable.Pdf
īˇ Fact Book High Voltage Accessories Of Brugg Cables__En.Pdf
īˇ Ehv Power Cable Systems.Pdf.