Transformers
•Download as PPTX, PDF•
3 likes•812 views
The document describes the key steps in manufacturing a transformer, including the design of the core, low voltage and high voltage windings, assembly, and testing. The core is made of silicon steel or amorphous metal sheets and wound with copper or aluminum. The low and high voltage windings are wound on pressboard and connected in star and delta configurations respectively. Once assembled, the core and windings are placed in an oil-filled tank with additional equipment and tested for insulation, voltage, no-load power, temperature, and double voltage double frequency performance.
Report
Share
Report
Share
Recommended
Transformer with 3D wound core
Special equipments are available to manufacture the 3D transformer wound core with complete technical support. Both plane wound core and 3D wound core can be realized.
http://youtu.be/ndyUy-MqVAo
69726637-Ppt-on-Transformer
This document provides information about transformers, including power and distribution transformers. It discusses core types, windings, cooling systems, installation locations, voltage ratings, and capacities. The document compares power and distribution transformers and describes their different parts. It also outlines the design process for transformers, listing specifications, calculations, and performance testing according to IEC standards.
VDMN
The document provides information about a presentation and training on power transformers that took place at B.K. Birla Group in Sonipat, India. It thanks the vice president and HR of ECE Industries for allowing the presentation and guides who ensured a convenient stay. It then discusses why power transformers were the topic of interest given growing electricity demand. It provides background on ECE Industries and describes them as a major supplier of power transformers in India. The document goes on to describe the process of making power transformers.
Transformer
Patel transformer PVT. LTD is a small-scale company that provides maintenance and repair for distribution transformers located in Palanpur, India. A transformer is a static machine that transforms power from one circuit to another without changing frequency, using Faraday's law of electromagnetic induction. The inspection report will examine the transformer core, insulation machine, coils, design criteria, oven, oil tank, and cleaning/painting. Transformer tests include testing the low-voltage and high-voltage sides.
Step down transformer
This document provides instructions for making a working model of a step-down transformer, including:
1. The required components are double layer copper wire, silicon-iron sheets, waxed paper, brackets, a spool, and an IN5408 diode.
2. Calculations are described for determining the core area, turns per voltage, primary current, number of primary and secondary turns based on the voltages.
3. An example is given where the primary voltage is 228V, the secondary voltage calculated is 44V, the primary turns are 1200, and secondary turns are 230.
4. The IN5408 diode is used to convert the AC output to DC by placing four diodes in combination.
Transformer Repair Workshop Report [EEE]
This document summarizes the summer training report submitted by four students from Amritsar College of Engineering & Technology at the Punjab State Power Corporation Limited Transformer Repair Workshop in Amritsar. The workshop repairs damaged transformers to save costs compared to the private sector. It has two main circles and aims to repair 120 units per month. The report describes the workshop organization and sections for washing, repairing, drying, assembling, testing and storing transformers. It also explains transformer components, types, workings, efficiency tests and applications.
Power Transformer ( Summer Training presentation BHEL )
The document summarizes the manufacturing process and testing of power transformers. Power transformers have ratings above 200 KVA and are used to step up and step down voltages for power transmission. Their manufacturing involves designing, winding production, core building, fitting insulation, assembly, mounting terminal gear, and final testing. Key stages include unlacing the core, coil assembly, relacing the core, and tanking. Transformers undergo routine tests including voltage ratio checks, as well as type tests like temperature rise and noise level evaluations to ensure proper functioning.
Powertransformer
Sarvottam Deshpande presented a seminar on power transformers. Power transformers are used to transfer power between different voltage levels by electromagnetic induction without changing frequency. They are generally rated at 500kVA or greater. Power transformers can be classified as small (500-7500kVA), medium (7500-100MVA), or large (over 100MVA) and have an average lifespan of 30 years. The core is made of silicon steel to reduce losses and hysteresis losses use cold rolled grain oriented silicon steel. Various winding types like spiral, helical, and sandwich are used depending on current rating. Insulation uses oil-impregnated paper and cooling is provided by the insulating oil or separate radiators.
Recommended
Transformer with 3D wound core
Special equipments are available to manufacture the 3D transformer wound core with complete technical support. Both plane wound core and 3D wound core can be realized.
http://youtu.be/ndyUy-MqVAo
69726637-Ppt-on-Transformer
This document provides information about transformers, including power and distribution transformers. It discusses core types, windings, cooling systems, installation locations, voltage ratings, and capacities. The document compares power and distribution transformers and describes their different parts. It also outlines the design process for transformers, listing specifications, calculations, and performance testing according to IEC standards.
VDMN
The document provides information about a presentation and training on power transformers that took place at B.K. Birla Group in Sonipat, India. It thanks the vice president and HR of ECE Industries for allowing the presentation and guides who ensured a convenient stay. It then discusses why power transformers were the topic of interest given growing electricity demand. It provides background on ECE Industries and describes them as a major supplier of power transformers in India. The document goes on to describe the process of making power transformers.
Transformer
Patel transformer PVT. LTD is a small-scale company that provides maintenance and repair for distribution transformers located in Palanpur, India. A transformer is a static machine that transforms power from one circuit to another without changing frequency, using Faraday's law of electromagnetic induction. The inspection report will examine the transformer core, insulation machine, coils, design criteria, oven, oil tank, and cleaning/painting. Transformer tests include testing the low-voltage and high-voltage sides.
Step down transformer
This document provides instructions for making a working model of a step-down transformer, including:
1. The required components are double layer copper wire, silicon-iron sheets, waxed paper, brackets, a spool, and an IN5408 diode.
2. Calculations are described for determining the core area, turns per voltage, primary current, number of primary and secondary turns based on the voltages.
3. An example is given where the primary voltage is 228V, the secondary voltage calculated is 44V, the primary turns are 1200, and secondary turns are 230.
4. The IN5408 diode is used to convert the AC output to DC by placing four diodes in combination.
Transformer Repair Workshop Report [EEE]
This document summarizes the summer training report submitted by four students from Amritsar College of Engineering & Technology at the Punjab State Power Corporation Limited Transformer Repair Workshop in Amritsar. The workshop repairs damaged transformers to save costs compared to the private sector. It has two main circles and aims to repair 120 units per month. The report describes the workshop organization and sections for washing, repairing, drying, assembling, testing and storing transformers. It also explains transformer components, types, workings, efficiency tests and applications.
Power Transformer ( Summer Training presentation BHEL )
The document summarizes the manufacturing process and testing of power transformers. Power transformers have ratings above 200 KVA and are used to step up and step down voltages for power transmission. Their manufacturing involves designing, winding production, core building, fitting insulation, assembly, mounting terminal gear, and final testing. Key stages include unlacing the core, coil assembly, relacing the core, and tanking. Transformers undergo routine tests including voltage ratio checks, as well as type tests like temperature rise and noise level evaluations to ensure proper functioning.
Powertransformer
Sarvottam Deshpande presented a seminar on power transformers. Power transformers are used to transfer power between different voltage levels by electromagnetic induction without changing frequency. They are generally rated at 500kVA or greater. Power transformers can be classified as small (500-7500kVA), medium (7500-100MVA), or large (over 100MVA) and have an average lifespan of 30 years. The core is made of silicon steel to reduce losses and hysteresis losses use cold rolled grain oriented silicon steel. Various winding types like spiral, helical, and sandwich are used depending on current rating. Insulation uses oil-impregnated paper and cooling is provided by the insulating oil or separate radiators.
01 transformer construction
This document provides an overview of the content covered in an electrical machines course, including transformers, induction motors, synchronous machines, and alternators/generators. The key topics covered are transformer construction, operation, losses/efficiency, voltage regulation, parallel operation, and auxiliary equipment. Assessment includes theory and practical tests. The document then discusses transformer construction in more detail, covering core types, laminations, winding types, insulation, and tanks.
Presentation on Distribution Transformer by nirob dhilon chowdhury
This presentation is all about transformer, especially on manufacturing of distribution transformer. There is a brief description on X-former as well.
Transformer
1) A transformer transfers electric power from one circuit to another without changing the frequency by electromagnetic induction between two electric circuits.
2) To reduce losses, high voltage from generators is stepped up for transmission and stepped down for distribution to homes and industries using step-up and step-down transformers.
3) Key losses in transformers include copper losses from winding resistance, iron losses from hysteresis and eddy currents in the core, and dielectric losses from insulation; these losses can be reduced through techniques like vacuum pressure impregnation, choosing core materials, and proper cooling.
Presentation Design of Computer aided design of power transformer
The document summarizes the design of a 100 KVA power transformer. It includes the design calculations for the high voltage and low voltage windings, core, tank, and other components. Key specifications calculated include 11,000/433V voltage ratings, 3344 turns for the high voltage winding, 76 turns for the low voltage winding, and a core size of 115mm diameter. Performance metrics like 98.15% efficiency at full load, 3.94% voltage regulation, and total losses of 1561.617W are provided. Dimensions for the transformer tank and cooling system are also listed.
Transformer basic
This document provides a summary of key aspects of transformer basics:
- It describes the working principle of transformers using Faraday's law of electromagnetic induction and discusses the main parts of a transformer including its magnetic core and windings.
- It lists different types of transformers classified by their use, construction, cooling method and other factors. Common types include distribution, power, control, and instrument transformers.
- Key aspects of distribution transformers like primary and secondary voltages, capacities, construction types and impedance ranges are outlined.
- Star and delta connections are explained along with diagrams and equations relating line and phase voltages. Advantages and disadvantages are also summarized.
- Other transformer components like tap changers, bushings
Distribution transformer
Distribution transformers are used to reduce high primary voltages to lower utilization voltages for consumers. They come in various types including pole mounted, pad mounted, and underground transformers. Losses in distribution transformers include core losses from hysteresis and eddy currents, as well as copper losses from winding resistance. Efficiency is calculated based on total energy delivered over 24 hours rather than power ratio at full load, since distribution transformers rarely operate at full load. A breather uses silica gel to absorb moisture from transformer air and maintain a low dew point.
Transformer ppt
Presentation consist the brief information about the Transformer,its different types of manufacturing process and different types of testing process.
TRANSFORMER WORKING MANUFACTURINIG
Power transformers undergo several manufacturing stages including design, winding, core building, fitting insulation and coils, testing, and dispatch. The core is made of silicon steel to reduce losses, and various winding types are used like helical or spiral coils. Testing includes checks of the core, windings, and tank along with routine tests of voltage ratio, resistance, losses, and dielectric strength. Protection equipment for transformers includes lightning arresters, overcurrent relays, and others to monitor flux, oil level, and earth faults.
TRANSFORMER
This document summarizes information about a transformer that was presented by a student named Atish Jadhav for their Electrical Engineering class. It defines a transformer as a device that transfers energy between circuits through electromagnetic induction. It explains that varying the current in the primary winding creates a varying magnetic field that induces a voltage in the secondary winding. It also discusses why transformers are rated in kVA based on how their losses depend on both voltage and current. Finally, it provides diagrams and descriptions of the core type and shell type transformer designs.
0 Presentation1
The document provides information about transformer construction and operation. It discusses how transformers work by transferring electric power from one circuit to another through electromagnetic induction without changing frequency. It describes the main components of transformers including the core, windings, and casing. It also explains shell type and core type construction, three-phase transformer configuration, and the functions of transformer parts like the tank, breather, and bushings.
Transformer
- Transformers transfer electrical energy from one circuit to another through mutual induction between two windings, and can change the voltage but not the frequency.
- They work on the principle of Faraday's law of induction, where a changing magnetic field in the primary coil induces an electromagnetic force (EMF) in the secondary coil.
- Transformers are classified based on factors like performance, construction, voltages, applications, cooling, and input supply, and can be used to step up or step down voltages.
transformers
A transformer transfers electric power from one circuit to another through electromagnetic induction. It consists of two coils with a common magnetic core that allows power in one coil to induce a magnetic field that generates power in the other coil. Transformers operate by mutual inductance between the two coils and can raise or lower voltage levels while proportionally changing current. Commercial transformers have laminated steel cores to reduce eddy currents and losses, and use different cooling methods like air or water to dissipate heat from transformer components under load.
transformer slide prsentation
This document provides an overview of transformers, including their structure, working principle, construction, losses, and applications. Transformers are devices that change AC electric power at one voltage level to another through magnetic coupling of two coils. They allow interchange of electric energy between circuits without a direct connection. The transformer consists of a primary coil, secondary coil, and magnetic core. When an alternating current flows through the primary, it induces a changing magnetic flux that is transferred to the secondary coil to induce voltage. Transformers experience losses from copper, hysteresis, and eddy currents. They are used widely in power transmission and applications like televisions and cameras.
transformer ppt
A transformer is a static device that changes alternating current (AC) at one voltage level to AC at another voltage level through electromagnetic induction. It consists of two coils, the primary and secondary windings, wrapped around a laminated iron core. When an alternating current is applied to the primary winding, it produces an alternating magnetic field that induces a voltage in the secondary winding. This allows the transformer to step up or step down voltages without changing the frequency. The transformer transfers power between its two coils through electromagnetic coupling between the coils wound around the iron core.
Transformers
PPT ON PRACTICAL TRANSFORMERS IN A PLANT, THEIR VARIOUS PARTS , TYPES AND TESTS PERFORMED ON A TRANSFORMERS.
Presentation of transformer ppt
The document summarizes the key components and functions of a transformer. It discusses:
1. The core which provides a low reluctance path for magnetic flux and is made of laminated soft iron.
2. The primary and secondary windings which transfer electrical energy from one circuit to another through electromagnetic induction.
3. Insulating materials like paper and oil which isolate the windings and cool the transformer.
4. Additional parts like the conservator, breather, cooling tubes, and Buchholz relay which control moisture, circulate oil, and protect from internal faults.
Transformer
Transformers can step up or step down voltages and currents, and allow AC to pass while blocking DC. They consist of primary and secondary windings wound around an iron core, with no electrical connection between windings. The voltage induced in the secondary winding depends on the ratio of turns between the windings. Auto transformers have a single winding used for both primary and secondary, providing no electrical isolation and allowing the full voltage to pass to the load if open circuited. Transformer rectifier units convert AC to DC using a transformer to step down the voltage which is then rectified.
Power transformer
This document provides information about transformers, including their components, principles of operation, and applications. It discusses how transformers transfer electrical energy from one circuit to another through electromagnetic induction, changing the voltage and current magnitudes but not the frequency. The key components are the core, primary winding, and secondary winding. Transformers operate based on the principle of mutual induction between the windings. They are used in various applications like power transmission and audio/radio frequencies.
Power transformer
This document summarizes the key components and manufacturing process of a power transformer. It discusses the core materials used, including cold rolled grain oriented silicon steel which has excellent magnetic properties and reduces hysteresis losses. It describes the winding assembly process and different types of windings like spiral, helical, and sandwich windings. It also covers the different insulation materials and methods used, as well as testing procedures to ensure quality.
Power Transformer in DPL
This ppt describes the function of Power Transformer in a Power Generation plant. Here DPL(Durgapur Projects Limited) was our VT venue, so chose it as the Base.
How to wind 3D wound core?
Special equipments such as slitting machine, core winding machine and coil winding machine are available to manufacture the 3D transformer wound core with complete technical support. Both plane wound core and 3D wound core can be realized. baituer@gmail.com
The influences of T-joint core design on no-load losses in transformers
To compare the performance of transformers with respect to different core designs based on T-joint configurations of 23º, 45º, 60º, and 90º.
More Related Content
What's hot
01 transformer construction
This document provides an overview of the content covered in an electrical machines course, including transformers, induction motors, synchronous machines, and alternators/generators. The key topics covered are transformer construction, operation, losses/efficiency, voltage regulation, parallel operation, and auxiliary equipment. Assessment includes theory and practical tests. The document then discusses transformer construction in more detail, covering core types, laminations, winding types, insulation, and tanks.
Presentation on Distribution Transformer by nirob dhilon chowdhury
This presentation is all about transformer, especially on manufacturing of distribution transformer. There is a brief description on X-former as well.
Transformer
1) A transformer transfers electric power from one circuit to another without changing the frequency by electromagnetic induction between two electric circuits.
2) To reduce losses, high voltage from generators is stepped up for transmission and stepped down for distribution to homes and industries using step-up and step-down transformers.
3) Key losses in transformers include copper losses from winding resistance, iron losses from hysteresis and eddy currents in the core, and dielectric losses from insulation; these losses can be reduced through techniques like vacuum pressure impregnation, choosing core materials, and proper cooling.
Presentation Design of Computer aided design of power transformer
The document summarizes the design of a 100 KVA power transformer. It includes the design calculations for the high voltage and low voltage windings, core, tank, and other components. Key specifications calculated include 11,000/433V voltage ratings, 3344 turns for the high voltage winding, 76 turns for the low voltage winding, and a core size of 115mm diameter. Performance metrics like 98.15% efficiency at full load, 3.94% voltage regulation, and total losses of 1561.617W are provided. Dimensions for the transformer tank and cooling system are also listed.
Transformer basic
This document provides a summary of key aspects of transformer basics:
- It describes the working principle of transformers using Faraday's law of electromagnetic induction and discusses the main parts of a transformer including its magnetic core and windings.
- It lists different types of transformers classified by their use, construction, cooling method and other factors. Common types include distribution, power, control, and instrument transformers.
- Key aspects of distribution transformers like primary and secondary voltages, capacities, construction types and impedance ranges are outlined.
- Star and delta connections are explained along with diagrams and equations relating line and phase voltages. Advantages and disadvantages are also summarized.
- Other transformer components like tap changers, bushings
Distribution transformer
Distribution transformers are used to reduce high primary voltages to lower utilization voltages for consumers. They come in various types including pole mounted, pad mounted, and underground transformers. Losses in distribution transformers include core losses from hysteresis and eddy currents, as well as copper losses from winding resistance. Efficiency is calculated based on total energy delivered over 24 hours rather than power ratio at full load, since distribution transformers rarely operate at full load. A breather uses silica gel to absorb moisture from transformer air and maintain a low dew point.
Transformer ppt
Presentation consist the brief information about the Transformer,its different types of manufacturing process and different types of testing process.
TRANSFORMER WORKING MANUFACTURINIG
Power transformers undergo several manufacturing stages including design, winding, core building, fitting insulation and coils, testing, and dispatch. The core is made of silicon steel to reduce losses, and various winding types are used like helical or spiral coils. Testing includes checks of the core, windings, and tank along with routine tests of voltage ratio, resistance, losses, and dielectric strength. Protection equipment for transformers includes lightning arresters, overcurrent relays, and others to monitor flux, oil level, and earth faults.
TRANSFORMER
This document summarizes information about a transformer that was presented by a student named Atish Jadhav for their Electrical Engineering class. It defines a transformer as a device that transfers energy between circuits through electromagnetic induction. It explains that varying the current in the primary winding creates a varying magnetic field that induces a voltage in the secondary winding. It also discusses why transformers are rated in kVA based on how their losses depend on both voltage and current. Finally, it provides diagrams and descriptions of the core type and shell type transformer designs.
0 Presentation1
The document provides information about transformer construction and operation. It discusses how transformers work by transferring electric power from one circuit to another through electromagnetic induction without changing frequency. It describes the main components of transformers including the core, windings, and casing. It also explains shell type and core type construction, three-phase transformer configuration, and the functions of transformer parts like the tank, breather, and bushings.
Transformer
- Transformers transfer electrical energy from one circuit to another through mutual induction between two windings, and can change the voltage but not the frequency.
- They work on the principle of Faraday's law of induction, where a changing magnetic field in the primary coil induces an electromagnetic force (EMF) in the secondary coil.
- Transformers are classified based on factors like performance, construction, voltages, applications, cooling, and input supply, and can be used to step up or step down voltages.
transformers
A transformer transfers electric power from one circuit to another through electromagnetic induction. It consists of two coils with a common magnetic core that allows power in one coil to induce a magnetic field that generates power in the other coil. Transformers operate by mutual inductance between the two coils and can raise or lower voltage levels while proportionally changing current. Commercial transformers have laminated steel cores to reduce eddy currents and losses, and use different cooling methods like air or water to dissipate heat from transformer components under load.
transformer slide prsentation
This document provides an overview of transformers, including their structure, working principle, construction, losses, and applications. Transformers are devices that change AC electric power at one voltage level to another through magnetic coupling of two coils. They allow interchange of electric energy between circuits without a direct connection. The transformer consists of a primary coil, secondary coil, and magnetic core. When an alternating current flows through the primary, it induces a changing magnetic flux that is transferred to the secondary coil to induce voltage. Transformers experience losses from copper, hysteresis, and eddy currents. They are used widely in power transmission and applications like televisions and cameras.
transformer ppt
A transformer is a static device that changes alternating current (AC) at one voltage level to AC at another voltage level through electromagnetic induction. It consists of two coils, the primary and secondary windings, wrapped around a laminated iron core. When an alternating current is applied to the primary winding, it produces an alternating magnetic field that induces a voltage in the secondary winding. This allows the transformer to step up or step down voltages without changing the frequency. The transformer transfers power between its two coils through electromagnetic coupling between the coils wound around the iron core.
Transformers
PPT ON PRACTICAL TRANSFORMERS IN A PLANT, THEIR VARIOUS PARTS , TYPES AND TESTS PERFORMED ON A TRANSFORMERS.
Presentation of transformer ppt
The document summarizes the key components and functions of a transformer. It discusses:
1. The core which provides a low reluctance path for magnetic flux and is made of laminated soft iron.
2. The primary and secondary windings which transfer electrical energy from one circuit to another through electromagnetic induction.
3. Insulating materials like paper and oil which isolate the windings and cool the transformer.
4. Additional parts like the conservator, breather, cooling tubes, and Buchholz relay which control moisture, circulate oil, and protect from internal faults.
Transformer
Transformers can step up or step down voltages and currents, and allow AC to pass while blocking DC. They consist of primary and secondary windings wound around an iron core, with no electrical connection between windings. The voltage induced in the secondary winding depends on the ratio of turns between the windings. Auto transformers have a single winding used for both primary and secondary, providing no electrical isolation and allowing the full voltage to pass to the load if open circuited. Transformer rectifier units convert AC to DC using a transformer to step down the voltage which is then rectified.
Power transformer
This document provides information about transformers, including their components, principles of operation, and applications. It discusses how transformers transfer electrical energy from one circuit to another through electromagnetic induction, changing the voltage and current magnitudes but not the frequency. The key components are the core, primary winding, and secondary winding. Transformers operate based on the principle of mutual induction between the windings. They are used in various applications like power transmission and audio/radio frequencies.
Power transformer
This document summarizes the key components and manufacturing process of a power transformer. It discusses the core materials used, including cold rolled grain oriented silicon steel which has excellent magnetic properties and reduces hysteresis losses. It describes the winding assembly process and different types of windings like spiral, helical, and sandwich windings. It also covers the different insulation materials and methods used, as well as testing procedures to ensure quality.
Power Transformer in DPL
This ppt describes the function of Power Transformer in a Power Generation plant. Here DPL(Durgapur Projects Limited) was our VT venue, so chose it as the Base.
What's hot (20)
Presentation on Distribution Transformer by nirob dhilon chowdhury
Presentation on Distribution Transformer by nirob dhilon chowdhury
Presentation Design of Computer aided design of power transformer
Presentation Design of Computer aided design of power transformer
Viewers also liked
How to wind 3D wound core?
Special equipments such as slitting machine, core winding machine and coil winding machine are available to manufacture the 3D transformer wound core with complete technical support. Both plane wound core and 3D wound core can be realized. baituer@gmail.com
The influences of T-joint core design on no-load losses in transformers
To compare the performance of transformers with respect to different core designs based on T-joint configurations of 23º, 45º, 60º, and 90º.
The transformer
This document provides a six-month training summary on power transformers by Srajan bharti. It describes the key parts of a transformer including the tank, bushings, fins, fans, conservator tank, ground terminal, and gauges. The main components are then explained in more detail: the magnetic core, windings, insulation, insulating oil, expansion tank, temperature gauge, oil gauge, Buchholz relay, and breather. Transformers are also classified based on duty, construction, voltage, application, cooling, and input supply. Equations for transformer emf and ratios are provided. Ideal and practical transformer operation is outlined including no-load and load conditions. Open circuit, short circuit, and impedance
Electrical machine design
This document contains lecture notes on the fundamentals of electrical machine design from the EE-1352 ELECTRICAL MACHINE DESIGN course. It defines electrical machine design as the creative physical realization of theoretical concepts to produce machines that perform specified tasks with optimum economy and efficiency. The notes discuss basic considerations in developing a design including the design base, specifications, design transfer, and information updating. It also outlines major considerations like lower cost, durability, and meeting performance criteria, as well as limitations in design such as magnetic saturation, temperature rise, insulation, and customer specifications. Finally, it describes the basic structure of electrical machines including the magnetic, electric, dielectric, thermal, and mechanical circuits.
Transformer design
This document provides a guide for designing a simple transformer with step-by-step calculations. It outlines determining the load power and primary/secondary currents based on the voltage. Wire gauges are selected based on current capacities. The core size is calculated based on the power. Finally, the number of turns for the primary and secondary windings are calculated based on the core size and voltages. Key materials include copper wire, silicon-iron sheets, and insulation to prevent short circuits between windings.
Electrical machine design
This document outlines the course contents for the subject Electrical Machine Design - 1. It includes the following topics:
1. General aspects of insulating materials, heating, cooling, electrical and magnetic loading, output coefficients, and factors affecting machine size.
2. Design of three phase transformers including core and winding calculations, cooling methods, output equations, and design for minimum cost/loss.
3. DC machine design including output equations, core dimensions, armature design, field system design, commutator/brush design, and considerations for large machines.
4. Design principles and winding design for current transformers.
Design and Simulation of transformer less Single Phase Photovoltaic Inverter ...
This document presents the simulation results of a single-phase photovoltaic inverter without a transformer or batteries. A boost converter raises the voltage from the PV module to the desired level. An inverter with PWM switching converts the DC to AC. Simulation in MATLAB/Simulink shows the PV output of 96V and 6.5A is boosted to 320V DC. The inverter produces a 230V AC output at 50Hz with less than 1% THD, eliminating the need for batteries or a transformer. The proposed design aims to directly and efficiently convert solar power to AC without intermediate components to reduce costs.
Building product suggestions for a BIM model based on rule sets and a semant...
The architecture, engineering and construction (AEC) industry today relies on different information systems and computational tools built to support and assist in the building design and construction. However, these systems and tools typically provide this support in isolation from each other. A good combination of these systems and tools is beneficial for a better coordination and information management. Semantic web technologies and a Linked Data approach can be used to fulfil this aim. In this paper, we indicate how these technologies can be applied for one particular objective, namely to check a building information model (BIM) and make suggestions for that model regarding the building elements. These suggestions are based on information obtained from different data sources, including a BIM model, regulations and catalogues of locally available building components.
Transformer Design Engineer
Prathap Kumar is seeking a position as an electrical engineer with 5 years of experience in transformer design and manufacturing. He has expertise in designing distribution and power transformers up to 50MVA and currently works as a design engineer. Previously he worked for Kamath Transformers where he was responsible for transformer design, preparation of technical documents, and interacting with clients and production.
Transformer Design
This document discusses research into developing a theory and method for designing transforming products. It begins by introducing transformation principles and facilitators identified through studying thousands of patents and products. A transformer repository containing 190 transforming products is described. The research aims to identify relationships between principles and facilitators through empirical study in order to guide designers and find new transformation solutions. An inductive approach is used involving observing nature, patents and products to extract transformation heuristics and develop a theory from the bottom up.
Transformer
The document discusses transformers and provides information on their components and functioning. It defines a transformer as a device that transfers electrical energy from one circuit to another through inductively coupled conductors. The secondary voltage is scaled from the primary by the ratio of their winding turns. Transformers can step up or step down voltage. Different types of transformers are described, along with ideal transformer characteristics. Transformer testing methods, losses, efficiency calculation, and maintenance procedures are also summarized.
Design of transformer and chock coil
This document provides information on the design of single phase and three phase variable air-gap choke coils. It discusses the key components of a choke coil including the copper wire winding and laminated iron core. The design procedure involves determining the required magnetic flux, current, turns, conductor size, and mechanical dimensions. Key steps include calculating the ampere-turns for the iron and air gaps, selecting the conductor size based on current density, and determining the coil window size and spacing to accommodate the windings. Design values such as resistance, inductance, and impedance are also calculated.
500MW presentation - 11102006.PPT
This document discusses transformer protection standards and methods. It provides details on differential protection, overcurrent protection, earth fault protection, overfluxing protection, temperature protection, buchholz relays, bushings, cooling systems, and other components. Some key protection methods mentioned include differential relaying using current transformers, overcurrent protection on the low and high voltage sides, backup earth fault protection, and overfluxing protection operating on voltage-to-frequency principles.
Transformer Design
This document contains design calculations for a single-phase distribution transformer. It specifies design parameters such as a rated output of 50 kVA, primary voltage of 13800V, secondary voltage of 460/230V, and an efficiency of at least 0.96 at full load. The document then shows calculations for transformer components like winding dimensions and currents, core size, flux density, losses, and temperature rise. Design goals are to have losses lower than specified guarantees and a temperature rise under 55°C at full load.
Three Phase Ac Winding Calculation
This document summarizes a program for calculating three-phase AC winding for single-speed motors. The program includes diagrams for common winding configurations with 12 to 90 slots. It guides the user through entering core dimensions and specifications to calculate the winding configuration, number of turns per coil, wire size and other details. Operating the program is designed to be easy, even for those without experience in computers or motor winding calculations.
Transistor Configuration
In this slide given detail description about different types of transistor configurations.
i.e. Common emmiter
Common Base
Common collector
Chapter 7 transformers
The document contains lecture notes about transformers. It discusses that a transformer transfers electrical energy from one voltage level to another without mechanical energy conversion. It has two circuits called primary and secondary linked by a magnetic circuit. An AC voltage applied to the primary induces a voltage in the secondary according to Faraday's law of induction. The core is made of laminated steel to reduce eddy current losses. Transformers can be of core type or shell type and are used to step up or step down voltages for applications like power distribution or electronics.
Transformers
1. Introduction
2. History of transformer
3. Principle
4. Construction and Working
5. Types of Transformer
6. Application
7. Auto transformer
8. Need of transformer
Transformer Designing
The document provides information on transformer design specifications and considerations. It discusses technical specifications for a 500KVA, 3 phase transformer including input/output voltages and power ratings. It also covers initial calculations, losses in transformers, core materials and construction, winding design, insulation, cooling methods, and connection configurations. The goal is to design a transformer that efficiently transfers power while meeting specifications for voltage, current, temperature rise and other factors.
Viewers also liked (20)
The influences of T-joint core design on no-load losses in transformers
The influences of T-joint core design on no-load losses in transformers
Design and Simulation of transformer less Single Phase Photovoltaic Inverter ...
Design and Simulation of transformer less Single Phase Photovoltaic Inverter ...
Building product suggestions for a BIM model based on rule sets and a semant...
Building product suggestions for a BIM model based on rule sets and a semant...
Similar to Transformers
TRANSFORMER DESIGN.pptx
A transformer consists of two coils, a primary and secondary winding, that are magnetically linked through an iron core. Alternating current passing through the primary winding induces an alternating voltage in the secondary winding through electromagnetic induction. Transformers can step voltage up or down and are classified based on their construction, cooling type, purpose, supply type, and application. Key design considerations for a transformer include its power rating, voltage ratio, vector group, impedance, losses, cooling type, insulation level, and temperature rise. Transformers undergo various tests at the factory and after installation to ensure proper operation.
Transformer report-Siemens
This document is an internship report on transformers produced by Siemens Pakistan. It discusses transformer construction including the core, windings, and tap changers. It describes the manufacturing process and types of windings used for different transformer ratings. Finally, it outlines common transformer tests performed, including on-load tests, impedance tests, and lightning impulse tests.
Training report trw
The document provides information about transformer repair workshops (TRWs) in India. It discusses:
- The establishment and functions of the TRW in Patiala, which repairs various capacities of distribution transformers.
- Details of other workshops for manufacturing poles, fabricating fittings and coils, and repairing power transformers.
- The basic working principles of transformers, including electromagnetic induction and voltage transformation.
- Construction details of different transformer components like the core, windings, tank, bushings, and connections.
- Types of losses that occur in transformers, including core/iron losses, copper losses, and stray losses.
UNIT - 05 DISTRIBUTION LINES AND TRANSFORMER CENTRE
Code of practice for Distribution Lines and Transformer centre, types of transformer centres -
Pole mounted, plinth mounted, indoor and outdoor types. Determining the rating of
Distribution Transformer. Write Specifications of the Distribution Transformer. Draw the
SLD of a Transformer centre indicating the size of protective devices, Prepare the schedule of
equipments /Materials with specifications for a 11KV/415V,100 KVA transformer centre and
their estimates, 415 V LT line materials and specifications , method of calculating various LT
line materials (only). Prepare the schedule of materials (only) for 3 phase 4 wire LT line,
11 KV HT Line-materials and their specifications, method of calculating various HT line
materials and tapping structure, TOPO sheet and its use, Concept of combined estimates.
Prepare the schedule of materials (only) for 11 KV single circuit HT line for Rural
Electrification.
(Note: HT lines over head type only)
How to reduced transformer losses report
a brief presentation report on How to reduced transformer losses. its knowledgeful for every technical student.
UNIT IV design of Electrical Apparatus
Output equation of Induction motor; Main dimensions; Separation of D and L; Choice of Average flux density; length of air gap; Design of Stator core; Rules for selecting rotor slots of squirrel cage machines; Design of rotor bars and slots; Design of end rings; Design of wound rotor; Magnetic leakage calculations; Leakage reactance of polyphase machines; Magnetizing current; Short circuit current; Operating characteristics; Losses and Efficiency.
Water fuel cell d14 - updated 24th dec 2008 (ravi dave hho browns gas stanl...
This document provides instructions for replicating Stanley Meyer's electrolysis device for producing a gas mixture of hydrogen and oxygen from water. It describes the components, circuitry, and construction of the electrolysis cell, which uses stainless steel tubes as electrodes. The document also outlines a process for conditioning the electrodes through gradual increases in current over multiple cycles to optimize gas production. Safety precautions are emphasized, as the gas mixture produced is highly flammable.
Transformers pptxx.ppt
The document provides an overview of transformers, including their operating principle, classifications, construction, parts, losses, efficiency, parallel operation, maintenance, testing, protection, 3-phase connections, and frequently asked questions. Transformers operate on the principle of mutual induction to convert AC electric energy at one voltage level to another voltage level at the same frequency. They consist of coils wrapped around a common ferromagnetic core to provide a path for the magnetic field.
5 power house
The document provides information about the components and functions of a substation, including transformers, circuit breakers, and relays. It describes three types of circuit breakers used in the Sealdah Power House substation: air circuit breakers, which use high-pressure air to extinguish arcs; vacuum circuit breakers, which take advantage of arc non-sustainability in a vacuum; and oil circuit breakers, which use insulating oil to generate hydrogen gas to extinguish arcs. Specifications are provided for samples of equipment from the Sealdah Power House, including transformers, air circuit breakers, and vacuum circuit breakers.
400 kv nelmangala
This document provides a report on the 400/220 KV Nelamangala power station near Bangalore, India. It includes a single line diagram of the substation, details of the bus bar scheme, and descriptions of the main equipment including capacitive voltage transformers, current transformers, circuit breakers, isolators, transformers, and reactors. It also covers substation auxiliaries, control rooms, earthing systems, and provides specifications for the main transformers. The power station was established to integrate new power sources into the southern grid and reduce grid failures in the region.
EDEC_Design of Transformer_part-1.pdf
This document summarizes the key topics in the chapter on electrical transformer design and cost estimation. It describes the main types of transformers as core type and shell type, and their construction. Distribution transformers and power transformers are compared in terms of their typical ratings and applications. The specifications, magnetic circuit, and output equations of transformers are also outlined.
220kv grid wapda town lahore
It is Multimedia presentation made by Abdul Samad, An Electrical Engineer From UET Lahore Pakistan. For queries contact Abdulsamad.pisces@hotmail.com
Hope u find it useful
ED Section
The internship report summarizes the intern's two-day training at the Electrical Distribution (ED) section of POF. The ED section has two departments: ED 1 deals with overhead lines and substations, while ED 2 handles protection devices. Key activities observed included learning about single line diagrams, symbols, billing systems, meter maintenance, and visits to the substation and grid station. The intern gained experience with overhead distribution systems, transformers, cables, breakers, relays, and pump maintenance.
Unit 1-2-b
VTU Notes for Testing and commissioning of Electrical Equipment Department of Electrical and Electronics Faculty Name: Mrs Veena Bhat Designation: Assistant Professor Subject: Testing and Commissioning of Electrical equipment Semester: VII
Kanti Thermal Power Station
The document is an industrial training project report submitted by Neeraj Prasad on studying switchyards and transformers at NTPC Kanti power station. It includes sections on the working principles of transformers, their classification and accessories. It discusses heat generation in transformers and how they are cooled. It also covers the working of switchyards and their components. The trainee completed various tasks under the guidance of managers over a one month training period to fulfill the requirements for their electrical engineering degree.
132 KV Grid Station Intern ship training report
1. The document summarizes Muntazir Mehdi's two-week internship training at the 132 KV Substation Kamalabad operated by IESCO in Pakistan.
2. It provides details about the substation's configuration, with two incoming 132 KV lines, and describes the various components used in substations including transformers, circuit breakers, isolators, bus bars, insulators, and protection relays.
3. The substation components are classified and their functions and characteristics are explained over the course of the 14-page report.
A vocational summer training at Jindal Steel and Power Limited
a report submitted by Kishan Gabel for the Industrial training persued at JSPL in the field of Electrical Engineering.
Protection & switchgear
This document provides information on a Power System Protection course taught at Vivekanandha College of Engineering for Women. The syllabus covers 5 units: introduction to protection schemes, relay operating principles and characteristics, apparatus protection, theory of circuit interruption, and circuit breakers. It lists textbooks and presents details on each unit, including topics like relay types, transformer/generator/motor protection, arc phenomena, and different circuit breaker types. The last section provides references for textbooks, websites, and presentations on related topics.
Industrial training ppt bhel bhopal
This industrial training report summarizes the process for manufacturing generating transformers at BHEL Bhopal. It discusses the key steps which include design and drawing, core building by stacking laminated silicon steel sheets, winding manufacturing using horizontal and vertical winding machines, coil assembling, power assembly by mounting the core and coils, case fitting to connect accessories like bushings and radiators, vapor phase drying to remove moisture, testing including routine and type tests, and final dispatch after successful testing. The report provides details on the types of materials, winding configurations, and tests used at each stage of manufacturing large power transformers.
Similar to Transformers (20)
UNIT - 05 DISTRIBUTION LINES AND TRANSFORMER CENTRE
UNIT - 05 DISTRIBUTION LINES AND TRANSFORMER CENTRE
Water fuel cell d14 - updated 24th dec 2008 (ravi dave hho browns gas stanl...
Water fuel cell d14 - updated 24th dec 2008 (ravi dave hho browns gas stanl...
A vocational summer training at Jindal Steel and Power Limited
A vocational summer training at Jindal Steel and Power Limited
Recently uploaded
Gender and Mental Health - Counselling and Family Therapy Applications and In...
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
مصحف القراءات العشر أعد أحرف الخلاف سمير بسيوني.pdf
مصحف أحرف الخلاف للقراء العشرةأعد أحرف الخلاف بالتلوين وصلا سمير بسيوني غفر الله له
How to Setup Warehouse & Location in Odoo 17 Inventory
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
BIOLOGY NATIONAL EXAMINATION COUNCIL (NECO) 2024 PRACTICAL MANUAL.pptx
Practical manual for National Examination Council, Nigeria.
Contains guides on answering questions on the specimens provided
Mule event processing models | MuleSoft Mysore Meetup #47
Mule event processing models | MuleSoft Mysore Meetup #47
Event Link:- https://meetups.mulesoft.com/events/details/mulesoft-mysore-presents-mule-event-processing-models/
Agenda
● What is event processing in MuleSoft?
● Types of event processing models in Mule 4
● Distinction between the reactive, parallel, blocking & non-blocking processing
For Upcoming Meetups Join Mysore Meetup Group - https://meetups.mulesoft.com/mysore/YouTube:- youtube.com/@mulesoftmysore
Mysore WhatsApp group:- https://chat.whatsapp.com/EhqtHtCC75vCAX7gaO842N
Speaker:-
Shivani Yasaswi - https://www.linkedin.com/in/shivaniyasaswi/
Organizers:-
Shubham Chaurasia - https://www.linkedin.com/in/shubhamchaurasia1/
Giridhar Meka - https://www.linkedin.com/in/giridharmeka
Priya Shaw - https://www.linkedin.com/in/priya-shaw
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh
A Visual Guide to 1 Samuel | A Tale of Two Hearts
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...Nguyen Thanh Tu Collection
https://app.box.com/s/tacvl9ekroe9hqupdnjruiypvm9rdaneChapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...Nguyen Thanh Tu Collection
https://app.box.com/s/y977uz6bpd3af4qsebv7r9b7s21935vdRecently uploaded (20)
Gender and Mental Health - Counselling and Family Therapy Applications and In...
Gender and Mental Health - Counselling and Family Therapy Applications and In...
مصحف القراءات العشر أعد أحرف الخلاف سمير بسيوني.pdf
مصحف القراءات العشر أعد أحرف الخلاف سمير بسيوني.pdf
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
spot a liar (Haiqa 146).pptx Technical writhing and presentation skills
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
BIOLOGY NATIONAL EXAMINATION COUNCIL (NECO) 2024 PRACTICAL MANUAL.pptx
BIOLOGY NATIONAL EXAMINATION COUNCIL (NECO) 2024 PRACTICAL MANUAL.pptx
Mule event processing models | MuleSoft Mysore Meetup #47
Mule event processing models | MuleSoft Mysore Meetup #47
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
B. Ed Syllabus for babasaheb ambedkar education university.pdf
B. Ed Syllabus for babasaheb ambedkar education university.pdf
Transformers
- 2. A practical training seminar on
- 3. Manufacturing of transformer Design of core Design of LV winding Design of HV winding Assembly of transformer Testing of transformer 12/09/2013 4
- 4. Design of core Core is the most important part of any transformer. There are generally two types of core used that are as follows Silicon steel type core Amorphous metal sheet core For distribution transformer CRGO (cold rolled grain oriented steel) sheets are used. these sheets are assembled together in iron channels 12/09/2013 5
- 6. Design of LV winding LV winding This is called as low voltage winding .this is wounded on the core. LV winding is made up of cupper strips. These cupper strips are fully insulated by the cotton tap and paper insulation and after this it is wounded on the cylinder made up of press board. The star connection is made up on the LV winding. 12/09/2013 6EE1: MCT 6
- 8. Design of HV winding HV winding HV winding is known as high voltage winding. It is wounded after the LV winding in the distribution transformers. The aluminum or copper wire is used for making the HV winding. The HV winding is wounded on the cylinder made up of press board worth the help of machines. After every layer of winding paper insulation is wounded .the tapings for the tap changer is also taken out from the HV windings. The delta connection is made up with the help of HV winding 12/09/2013 6EE1: MCT 8
- 9. 12/09/13 9
- 12. Assembly of transformer Now the core assembly is inserted into tank and transformer oil is filled. Now the other equipment is equipped on this tank like Radiators, Bushing, Breather, Conservator, Filling valve, Lifting lugs, Oil gauge, Tank earthling point, Temperature meter (O.T/W.T), Drain Valve, Tap-changer , Buchloz relay, Explosion vent, Rating plate. 12/09/2013 12
- 14. Testing of transformer Insulation-resistance test at ambient temperature This test is done after taking out the assembly of transformer from the oven for measure the moisture present in the transformer core. It gives readings in MΩ and the reading should be greater than 500 MΩ. 12/09/2013 15
- 15. Testing of transformer High voltage test High voltage test is done for checking the clearance of the transformer assembly. If there is no gap present in assembly with the tank then it can cause short circuit to damage the transformer. There should be gap of 20mm and 40mm in between core assembly and transformer tank. This is known as clearance. 12/09/2013 16
- 16. Testing of transformer No-load test In this test we will give supply to the LT side. Now we will see the ampere metre reading that should be less than 1 amp. And the power reading should be 121watts. 12/09/2013 17
- 17. Testing of transformer ON load test First we will supply the rated current of 1.31 amps (for 25 KVA transformers) by the help of push button for increasing voltage. Now the reading will observed as followsV = 458.33v A = 1.31amp Ws = 579 Room temperature= 400 C Transformer temperature = 420 C Ambient temp = 225+42=267(for aluminum) 235+42=277(for cupper) Slandered factor = 300(for aluminum) 310(for cupper) Load loss= (WS*S.F.)/amb. Temp. = (579*300)/267 650.50 12/09/2013 18
- 18. Testing of transformer 6DV-DF (double voltage, double frequency) test This test is done for the insulation of every phase. In this test 866V supply is given to the LT of the transformer to be tested. This supply is given by the 3phase induction motor coupling with the generator. This set produce double voltage and double frequency, hence it is called DV-DF test. This supply is given for the one minute. Mean while we see the change in the meters connected for every phase. There is no reading in meter means the insulation is proper. 12/09/2013 19
- 19. 12/09/13 19