In offshore oil & gas installation, the electrical power system consists of a large distribution
network, generally operating in island mode i.e., without grid support.
This document provides guidance on earthing practices for Central Networks. It describes recent changes including classifying distribution sites as hot or cold based on their connection type. Hot sites require segregated high voltage and low voltage earths due to risks of high earth potential rise. The document details standard earthing methods used on different voltage networks from 132kV to low voltage, and provides references to other sections for soil testing, earth resistance testing, and standard earthing layouts.
Why neutral grounding resisitor need continuous monitoringchidhanandhajm
This document discusses neutral grounding resistors (NGRs) and the importance of continuously monitoring them. It provides examples of problems that can occur if an NGR fails or loses connection, such as soft starter failures or transient overvoltages. Continuous monitoring can detect NGR issues and ensure ground fault protection still functions properly. An effective monitor measures resistance through the NGR to identify connectivity issues, and protects against failures that could leave systems unprotected from ground faults.
This document discusses different methods of grounding electrical systems, including solid grounding, resistance grounding, reactance grounding, and resonant groundings using a Peterson coil. Solid grounding directly connects the neutral point to earth, holding it at earth potential but allowing high fault currents. Resistance grounding limits fault current by connecting through a resistor. Reactance grounding uses an inductor instead of resistor. Resonant grounding with a Peterson coil adjusts the inductance to balance capacitive currents and prevent arcing faults.
This document provides an overview of electrical substations, including their classification, components, and specifications. It discusses the different types of substations based on voltage levels, configuration, and application. It also describes the primary functions and components of outdoor switchyards, including incoming and outgoing lines, transformers, circuit breakers, and earthing systems. Clearance requirements and specifications for indoor electrical panels, busbars, grounding, and cabling are also outlined.
Turnkey Solutions – the key to successful projects
----------------------------------------------------------------
EPC Solutions has all it takes to design, construct, and operate turnkey electrical substation solutions that efficiently support the reliable supply of electrical power on all voltage levels: decades of practical experience as a contractor and equipment manufacturer and a vast number of successfully completed projects all over the world, unparalleled expertise in all transmission processes, and proven excellence in project management. A distinguished tradition of innovation in power engineering, customized financing solutions, and outstanding quality standards in all production facilities worldwide round out the picture.
EPCS turnkey solutions for high-voltage substations incorporate the strong performance of one of the world’s leading engineering companies and one-stop supplier of power transmission products, solutions, and services. The scope of services comprises consulting, project management, system planning, engineering, commissioning, and comprehensive after-sales support. Centers of competence and branches all over the world create local value and ensure that EPCS experts are within close reach of every project.Customers worldwide benefit from numerous advantages of high-voltage substations from EPCS:
>One-stop approach comprising all technical, financial, and ecological aspects of the station’s entire life cycle
>Customized solutions based on proven EPCS technologies, even for the most challenging demands
>Freedom from coordination efforts and minimized financial and technical risk
Application Considerations for Power System Groundingmichaeljmack
This document discusses various grounding methods for power systems, including solid grounding, ungrounded systems, resistance grounding, and reactance grounding. It provides examples of how each method works and considerations for selecting a grounding approach based on factors like service continuity requirements and the presence of line-to-neutral loads. The document also reviews retrofitting existing systems and includes diagrams demonstrating different grounding configurations.
This document provides a summary of the industrial training completed by Lovit Sawhney in July 2015. It includes an overview of key railway electrical terms and a description of cantilever assembly in Delhi Metro stations. It also summarizes tenders reviewed, office structure, and ongoing projects under RVNL including electrification and metro lines. Key sections reviewed are summarized along with field trips to the traction power control office, a traction substation, and power system installations in Delhi.
This document provides guidance on earthing practices for Central Networks. It describes recent changes including classifying distribution sites as hot or cold based on their connection type. Hot sites require segregated high voltage and low voltage earths due to risks of high earth potential rise. The document details standard earthing methods used on different voltage networks from 132kV to low voltage, and provides references to other sections for soil testing, earth resistance testing, and standard earthing layouts.
Why neutral grounding resisitor need continuous monitoringchidhanandhajm
This document discusses neutral grounding resistors (NGRs) and the importance of continuously monitoring them. It provides examples of problems that can occur if an NGR fails or loses connection, such as soft starter failures or transient overvoltages. Continuous monitoring can detect NGR issues and ensure ground fault protection still functions properly. An effective monitor measures resistance through the NGR to identify connectivity issues, and protects against failures that could leave systems unprotected from ground faults.
This document discusses different methods of grounding electrical systems, including solid grounding, resistance grounding, reactance grounding, and resonant groundings using a Peterson coil. Solid grounding directly connects the neutral point to earth, holding it at earth potential but allowing high fault currents. Resistance grounding limits fault current by connecting through a resistor. Reactance grounding uses an inductor instead of resistor. Resonant grounding with a Peterson coil adjusts the inductance to balance capacitive currents and prevent arcing faults.
This document provides an overview of electrical substations, including their classification, components, and specifications. It discusses the different types of substations based on voltage levels, configuration, and application. It also describes the primary functions and components of outdoor switchyards, including incoming and outgoing lines, transformers, circuit breakers, and earthing systems. Clearance requirements and specifications for indoor electrical panels, busbars, grounding, and cabling are also outlined.
Turnkey Solutions – the key to successful projects
----------------------------------------------------------------
EPC Solutions has all it takes to design, construct, and operate turnkey electrical substation solutions that efficiently support the reliable supply of electrical power on all voltage levels: decades of practical experience as a contractor and equipment manufacturer and a vast number of successfully completed projects all over the world, unparalleled expertise in all transmission processes, and proven excellence in project management. A distinguished tradition of innovation in power engineering, customized financing solutions, and outstanding quality standards in all production facilities worldwide round out the picture.
EPCS turnkey solutions for high-voltage substations incorporate the strong performance of one of the world’s leading engineering companies and one-stop supplier of power transmission products, solutions, and services. The scope of services comprises consulting, project management, system planning, engineering, commissioning, and comprehensive after-sales support. Centers of competence and branches all over the world create local value and ensure that EPCS experts are within close reach of every project.Customers worldwide benefit from numerous advantages of high-voltage substations from EPCS:
>One-stop approach comprising all technical, financial, and ecological aspects of the station’s entire life cycle
>Customized solutions based on proven EPCS technologies, even for the most challenging demands
>Freedom from coordination efforts and minimized financial and technical risk
Application Considerations for Power System Groundingmichaeljmack
This document discusses various grounding methods for power systems, including solid grounding, ungrounded systems, resistance grounding, and reactance grounding. It provides examples of how each method works and considerations for selecting a grounding approach based on factors like service continuity requirements and the presence of line-to-neutral loads. The document also reviews retrofitting existing systems and includes diagrams demonstrating different grounding configurations.
This document provides a summary of the industrial training completed by Lovit Sawhney in July 2015. It includes an overview of key railway electrical terms and a description of cantilever assembly in Delhi Metro stations. It also summarizes tenders reviewed, office structure, and ongoing projects under RVNL including electrification and metro lines. Key sections reviewed are summarized along with field trips to the traction power control office, a traction substation, and power system installations in Delhi.
This document analyzes grounding considerations for large kVA pad-mount transformers. It summarizes the assumptions made in analyzing different transformer voltages and kVA sizes up to 5,000 kVA. Calculations of ground potential rise, touch potential and step potential are performed and compared to safety limits. Results show the standard two ground rod system may not provide adequate protection for transformers over 750 kVA or higher secondary voltages. Larger or engineered grounding systems are recommended for safety.
1. Medium voltage systems can use different neutral grounding methods including solid grounding, impedance grounding, and high resistance grounding.
2. Impedance grounding limits line-to-ground fault current using a neutral grounding resistor or transformer, while high resistance grounding is used to control arc flash hazards in mines.
3. The neutral grounding method affects protection schemes, equipment ratings, and overvoltage stresses on the system. Core balancing CTs and open delta PTs are commonly used for earth fault detection on impedance grounded systems.
The document discusses excitation in generators and loss of excitation (LOE). It begins by explaining what excitation is, why it is required, and how it is provided in generators of different sizes. It then discusses what will happen if excitation is lost, including potential overspeeding, abnormal heating, and loss of synchronization. Several protection schemes for LOE are presented, including impedance-based R-X schemes which monitor changes in generator terminal impedance during LOE. Settings for typical LOE relays are also calculated and described.
A substation directs the flow of power through the electric system, protects components from faults, and interconnects transmission lines. It requires careful planning and design to achieve reliability, flexibility, and minimize costs while satisfying electric system requirements. Key elements of substation design include bus configurations, equipment layout and spacing, foundations, protective relaying, surge protection, and environmental considerations. Proper substation design is essential for reliable electric system operation.
A Detailed Investigation and Testing of Grid Voltage Oriented Sliding Mode Co...ijtsrd
Doubly Fed Induction mills DFIGs are widely utilized in variable velocity wind mills in spite of the nicely frequent overall performance of DFIGs, those mills are particularly realistic to grid faults. Therefore, the presence of grid faults ought to be taken into consideration inside the layout of any manage device to be deployed on DFIGs. Sliding Mode manage SMC is a beneficial alternative for electric powered equipment manipulate because SMC offers rapid dynamic reaction and less sensitivity to parameter versions and disturbances. Jehangir Rashid | Baljit Kaur "A Detailed Investigation and Testing of Grid Voltage Oriented Sliding Mode Control for DFIG (Doubly Fed Induction Generator)" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, URL: https://www.ijtsrd.com/papers/ijtsrd38368.pdf Paper Url: https://www.ijtsrd.com/engineering/electrical-engineering/38368/a-detailed-investigation-and-testing-of-grid-voltage-oriented-sliding-mode-control-for-dfig-doubly-fed-induction-generator/jehangir-rashid
This document discusses the components and layout of a gas insulated substation (GIS). It describes the key components including high voltage circuit breakers, disconnectors or earthing switches, voltage and current transformers, and terminals and connection elements. It also includes diagrams of an 800kV GIS layout and how the high voltage circuit breaker works. The document provides references for additional information on GIS maintenance, applications in power grids, and examples of 400/220kV GIS substations.
Saturated core fault current limiter field experience at a distribution subst...Franco Moriconi
Zenergy Power has been developing an inductive-type of
fault current limiter (FCL) for electric power grid
applications. In March 2009 Zenergy Power installed a
FCL in the Avanti distribution circuit of Southern
California Edison’s Shandin substation in San Bernardino,
CA, rated at 15 kV and 1,200 amperes steady-state. In
January 2010, this device successfully limited its first series
of real-world faults when the circuit experienced multiple
single-phase and three-phase faults. Zenergy Power also
received contracts to deliver an 11 kV, 1,250 amperes FCL
for the CE Electric UK grid and a 138 kV, 1,300 amperes
FCL for the Tidd substation of American Electric Power.
Emergency, Legally Required and Optional Standby Systemsmichaeljmack
The document discusses the differences between emergency, legally required standby, and optional standby systems according to the 1999 NEC. Emergency systems are for life safety and are subject to more stringent requirements than standby systems. Legally required standby systems serve equipment important for safety but not critical for life, while optional standby systems are intended to minimize economic losses and protect facilities. The document provides detailed comparisons of the categories and guidance on proper system design and component selection.
At the outset we wish to thank you for the curtsey and excellent response from you and active interest in taking a comprehensive view of modern safe Lightning Protection / Earthing and the underlying scientific principles as we posted in our Linkedin Profile, which is for your ready reference.
Busbar protection uses differential protection to isolate faults on the busbar. It works by comparing the current entering and leaving the busbar using CTs - any difference indicates an internal fault. Proper CT ratios and a stabilizing resistance are needed to restrain operation for external faults. PS class CTs are preferred over other classes due to more consistent accuracy. While busbar protection is important, it is currently not implemented in line at MRSS due to some unspecified reason.
Electrical Substations and Switchyard DesignLiving Online
Electrical substations form important nodal points in all power networks. Substations can be of various capacities, voltages, configurations and types depending on what is the application for which the substation is being designed. Location and layout of a substation present a number of challenges to the designer due to a large variety of options available to a designer. There are ever so many constraints too that need to be kept in mind; technical, environmental and naturally financial. Arriving at an optimum design within these constraints is as much an art as it is a science. Designing a substation which will operate with utmost reliability for at the least three or four decades involves a thorough knowledge of the current state-of-the art equipment, emerging technologies, the tools for presenting and evaluating all available options and a good appreciation of power system operation and maintenance. This course will present a comprehensive capsule of all the knowledge essential for a substation designer and walk the participants through the substation design process using a set of interlinked case studies.
WHO SHOULD ATTEND?
This course is aimed at engineers who are already working as electrical system designers as well as those who belong to any of the fields listed below and wish to prepare themselves for moving into the role of a substation designer.
Utility engineers dealing with power transmission and distribution systems
Electrical engineers involved in power generating plants with utility scale generators
Electrical engineers in large industries who are associated with power distribution
Consulting engineers involved in design of substations
Contractors executing projects involving electrical HV substations
Electrical commissioning engineers
MORE INFORMATION: http://www.idc-online.com/content/electrical-substation-and-switchyard-design-25
This document provides an overview of the typical components found in a gas insulated substation (GIS), including: enclosures made of aluminum alloy; conductors made of aluminum alloy; SF6 gas used for insulation and sealing; insulators that act as gas barriers; SF6 accessories like density sensors, valves, and pressure relief; circuit breakers; disconnectors; earthing switches; current and voltage transformers; and surge arresters. It also mentions gas insulated lines/bus and references further topics like GIS construction, maintenance, and its role in electric grid applications.
Earthing, or grounding, is connecting the electrical system to earth to discharge accumulated charges and prevent hazards. It stabilizes voltages and allows protective devices to operate during faults. There are different earthing systems like TN-S, TN-C, and TT that use separate earth and neutral conductors or combine them. Proper earthing is important for safety and performance of the electrical network.
UPS Electrical Design and Installation by Critical Power Supplies.
Important considerations for the electrical design and installation of UPS systems in mission critical applications.
Where Critical Power applications are concerned, the electrical design and installation of a UPS (uninterruptible power supply) system is crucially important for several reasons.
Firstly, it must work in alignment with installations already on site and not interfere with other electrical
equipment. This is particularly important for industrial and healthcare installations where there may already
be critical equipment (medical and life support, for example) in operation.
It all starts with a site survey.
A pre-installation site survey will reveal details about the scope of the electrical work to be undertaken.
Such information will reveal, for instance, the type of electrical loads, power quality issues, harmonics, whether it is a
high, medium or low voltage installation and electrical distribution set up, including the breaker sizes already on site
and their discrimination.
If you would like more information please contact sales on 0800 978 8988 or email sales@criticalpowersupplies.co.uk
protection scheme of a grid substation prsentationabu jubayer
The document discusses the key components and protection schemes used in a grid substation. It describes various types of circuit breakers used at different voltage levels, including low-voltage, medium-voltage, high-voltage, vacuum, SF6 and CO2 circuit breakers. It also discusses other essential equipment like transformers, relays, capacitors, conductors, isolators and the SCADA system used to monitor and control the substation. The objective of a substation's protection scheme is to isolate faulted components while keeping the rest of the electrical network in operation.
The document provides an overview of a power substation (switchyard) including:
- Typical components including busbars, circuit breakers, current transformers, and surge arrestors.
- Explanations of switchyard equipment such as circuit breakers, isolators, earth switches, and their functions.
- Descriptions of different types of substations based on voltage levels and mounting structures.
- Brief explanations of additional equipment such as capacitive voltage transformers, wave traps, and post insulators.
Analysis of example_capacitor_bank_switching_solution_and_recommendations_for...f95346
This document analyzes capacitor bank switching solutions and recommends adopting the Southern States CapSwitcher device. It summarizes that traditional solutions using circuit breakers and reactors cause high damage from arcing during frequent capacitor bank switching. The CapSwitcher limits inrush currents through a pre-insertion resistor, reducing arcing damage by over 90% and extending device life. Adopting the CapSwitcher provides reliability improvements and up to 33% cost savings over traditional solutions.
This document discusses hybrid grounding schemes for the electrical power system of offshore oil and gas installations. Due to space constraints in offshore utility plants, multiple generators often feed directly into 11kV switchgear without generator transformers. This introduces high capacitive charging currents that can damage generator cores during earth faults.
The document evaluates different grounding methods, including high resistance grounding through a neutral earthing resistor for generators and low resistance grounding for the 11kV switchgear through a zig-zag transformer. This hybrid scheme aims to limit fault currents while preventing core damage during single grounding occurrences. Factors like capacitive currents, third harmonic voltages, generator core damage curves, and neutral earthing resistor specifications are also analyzed
The electrical power system in offshore oil & gas installation, consists of a large
distribution network, generally operating in island mode i.e., without grid support. For a compact
utility plate form design, multiple gas turbine-generators without generator transformers, feed
directly to 11kV switchgear. Such a configuration however, introduces high capacitive charging
current (Ico), which is more than the preferred high resistance grounding of generator neutral
through 10A, 10sec resistor, to safeguard the generator core from damage during an earth fault.
Therefore, some utility prefers to select low resistance grounding to limit the fault current above
Ico; however this can cause severe damage to generator core. Generally, oil & gas installation is a
customized design. So, earthing scheme of 11kV generating utility system should be selected
judiciously at basic engineering stage to avoid equipment damage and protection mal-operation
during operation. Different methods of earthing scheme are available to mitigate the same. One of
the method is presented here in which generator neutral is connected to high resistance grounding
and 11kV switchgear connected to low resistance grounding though zig-zag transformer, subject to
single grounding operation at a time. Prior to synchronization or under complete load throw
scenario, generator circuit breaker is opened. So, an earth fault in generator or evacuation system,
create over-voltage or ferro-resonance conditions, stressing insulation of generator and associated
system. This is mitigated by putting neutral earthing resistor into service at generator neutral. This
paper presents the experience learned in designing neutral earthing scheme for off-shore utility
plant in view of high capacitive charging current at 11kV voltage level, outlines impact on stator
core damage, mitigation and conclusion
This paper reviews technologies for enhancing the low voltage ride through (LVRT) capability of wind farms using induction generators. It analyzes how FACTS controllers like STATCOMs or MERs can improve LVRT capability compared to thyristor controlled static var compensators (SVCs). It proposes using transient stability margin as an indicator of LVRT capability and describes a torque slip characteristic approach for estimating the rating of compensation devices needed to ensure stability after a fault. The paper also discusses different wind generator types, LVRT technologies like active crowbars and energy storage, and the role of grid codes in technical requirements for connecting wind farms to the grid.
This document analyzes grounding considerations for large kVA pad-mount transformers. It summarizes the assumptions made in analyzing different transformer voltages and kVA sizes up to 5,000 kVA. Calculations of ground potential rise, touch potential and step potential are performed and compared to safety limits. Results show the standard two ground rod system may not provide adequate protection for transformers over 750 kVA or higher secondary voltages. Larger or engineered grounding systems are recommended for safety.
1. Medium voltage systems can use different neutral grounding methods including solid grounding, impedance grounding, and high resistance grounding.
2. Impedance grounding limits line-to-ground fault current using a neutral grounding resistor or transformer, while high resistance grounding is used to control arc flash hazards in mines.
3. The neutral grounding method affects protection schemes, equipment ratings, and overvoltage stresses on the system. Core balancing CTs and open delta PTs are commonly used for earth fault detection on impedance grounded systems.
The document discusses excitation in generators and loss of excitation (LOE). It begins by explaining what excitation is, why it is required, and how it is provided in generators of different sizes. It then discusses what will happen if excitation is lost, including potential overspeeding, abnormal heating, and loss of synchronization. Several protection schemes for LOE are presented, including impedance-based R-X schemes which monitor changes in generator terminal impedance during LOE. Settings for typical LOE relays are also calculated and described.
A substation directs the flow of power through the electric system, protects components from faults, and interconnects transmission lines. It requires careful planning and design to achieve reliability, flexibility, and minimize costs while satisfying electric system requirements. Key elements of substation design include bus configurations, equipment layout and spacing, foundations, protective relaying, surge protection, and environmental considerations. Proper substation design is essential for reliable electric system operation.
A Detailed Investigation and Testing of Grid Voltage Oriented Sliding Mode Co...ijtsrd
Doubly Fed Induction mills DFIGs are widely utilized in variable velocity wind mills in spite of the nicely frequent overall performance of DFIGs, those mills are particularly realistic to grid faults. Therefore, the presence of grid faults ought to be taken into consideration inside the layout of any manage device to be deployed on DFIGs. Sliding Mode manage SMC is a beneficial alternative for electric powered equipment manipulate because SMC offers rapid dynamic reaction and less sensitivity to parameter versions and disturbances. Jehangir Rashid | Baljit Kaur "A Detailed Investigation and Testing of Grid Voltage Oriented Sliding Mode Control for DFIG (Doubly Fed Induction Generator)" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-2 , February 2021, URL: https://www.ijtsrd.com/papers/ijtsrd38368.pdf Paper Url: https://www.ijtsrd.com/engineering/electrical-engineering/38368/a-detailed-investigation-and-testing-of-grid-voltage-oriented-sliding-mode-control-for-dfig-doubly-fed-induction-generator/jehangir-rashid
This document discusses the components and layout of a gas insulated substation (GIS). It describes the key components including high voltage circuit breakers, disconnectors or earthing switches, voltage and current transformers, and terminals and connection elements. It also includes diagrams of an 800kV GIS layout and how the high voltage circuit breaker works. The document provides references for additional information on GIS maintenance, applications in power grids, and examples of 400/220kV GIS substations.
Saturated core fault current limiter field experience at a distribution subst...Franco Moriconi
Zenergy Power has been developing an inductive-type of
fault current limiter (FCL) for electric power grid
applications. In March 2009 Zenergy Power installed a
FCL in the Avanti distribution circuit of Southern
California Edison’s Shandin substation in San Bernardino,
CA, rated at 15 kV and 1,200 amperes steady-state. In
January 2010, this device successfully limited its first series
of real-world faults when the circuit experienced multiple
single-phase and three-phase faults. Zenergy Power also
received contracts to deliver an 11 kV, 1,250 amperes FCL
for the CE Electric UK grid and a 138 kV, 1,300 amperes
FCL for the Tidd substation of American Electric Power.
Emergency, Legally Required and Optional Standby Systemsmichaeljmack
The document discusses the differences between emergency, legally required standby, and optional standby systems according to the 1999 NEC. Emergency systems are for life safety and are subject to more stringent requirements than standby systems. Legally required standby systems serve equipment important for safety but not critical for life, while optional standby systems are intended to minimize economic losses and protect facilities. The document provides detailed comparisons of the categories and guidance on proper system design and component selection.
At the outset we wish to thank you for the curtsey and excellent response from you and active interest in taking a comprehensive view of modern safe Lightning Protection / Earthing and the underlying scientific principles as we posted in our Linkedin Profile, which is for your ready reference.
Busbar protection uses differential protection to isolate faults on the busbar. It works by comparing the current entering and leaving the busbar using CTs - any difference indicates an internal fault. Proper CT ratios and a stabilizing resistance are needed to restrain operation for external faults. PS class CTs are preferred over other classes due to more consistent accuracy. While busbar protection is important, it is currently not implemented in line at MRSS due to some unspecified reason.
Electrical Substations and Switchyard DesignLiving Online
Electrical substations form important nodal points in all power networks. Substations can be of various capacities, voltages, configurations and types depending on what is the application for which the substation is being designed. Location and layout of a substation present a number of challenges to the designer due to a large variety of options available to a designer. There are ever so many constraints too that need to be kept in mind; technical, environmental and naturally financial. Arriving at an optimum design within these constraints is as much an art as it is a science. Designing a substation which will operate with utmost reliability for at the least three or four decades involves a thorough knowledge of the current state-of-the art equipment, emerging technologies, the tools for presenting and evaluating all available options and a good appreciation of power system operation and maintenance. This course will present a comprehensive capsule of all the knowledge essential for a substation designer and walk the participants through the substation design process using a set of interlinked case studies.
WHO SHOULD ATTEND?
This course is aimed at engineers who are already working as electrical system designers as well as those who belong to any of the fields listed below and wish to prepare themselves for moving into the role of a substation designer.
Utility engineers dealing with power transmission and distribution systems
Electrical engineers involved in power generating plants with utility scale generators
Electrical engineers in large industries who are associated with power distribution
Consulting engineers involved in design of substations
Contractors executing projects involving electrical HV substations
Electrical commissioning engineers
MORE INFORMATION: http://www.idc-online.com/content/electrical-substation-and-switchyard-design-25
This document provides an overview of the typical components found in a gas insulated substation (GIS), including: enclosures made of aluminum alloy; conductors made of aluminum alloy; SF6 gas used for insulation and sealing; insulators that act as gas barriers; SF6 accessories like density sensors, valves, and pressure relief; circuit breakers; disconnectors; earthing switches; current and voltage transformers; and surge arresters. It also mentions gas insulated lines/bus and references further topics like GIS construction, maintenance, and its role in electric grid applications.
Earthing, or grounding, is connecting the electrical system to earth to discharge accumulated charges and prevent hazards. It stabilizes voltages and allows protective devices to operate during faults. There are different earthing systems like TN-S, TN-C, and TT that use separate earth and neutral conductors or combine them. Proper earthing is important for safety and performance of the electrical network.
UPS Electrical Design and Installation by Critical Power Supplies.
Important considerations for the electrical design and installation of UPS systems in mission critical applications.
Where Critical Power applications are concerned, the electrical design and installation of a UPS (uninterruptible power supply) system is crucially important for several reasons.
Firstly, it must work in alignment with installations already on site and not interfere with other electrical
equipment. This is particularly important for industrial and healthcare installations where there may already
be critical equipment (medical and life support, for example) in operation.
It all starts with a site survey.
A pre-installation site survey will reveal details about the scope of the electrical work to be undertaken.
Such information will reveal, for instance, the type of electrical loads, power quality issues, harmonics, whether it is a
high, medium or low voltage installation and electrical distribution set up, including the breaker sizes already on site
and their discrimination.
If you would like more information please contact sales on 0800 978 8988 or email sales@criticalpowersupplies.co.uk
protection scheme of a grid substation prsentationabu jubayer
The document discusses the key components and protection schemes used in a grid substation. It describes various types of circuit breakers used at different voltage levels, including low-voltage, medium-voltage, high-voltage, vacuum, SF6 and CO2 circuit breakers. It also discusses other essential equipment like transformers, relays, capacitors, conductors, isolators and the SCADA system used to monitor and control the substation. The objective of a substation's protection scheme is to isolate faulted components while keeping the rest of the electrical network in operation.
The document provides an overview of a power substation (switchyard) including:
- Typical components including busbars, circuit breakers, current transformers, and surge arrestors.
- Explanations of switchyard equipment such as circuit breakers, isolators, earth switches, and their functions.
- Descriptions of different types of substations based on voltage levels and mounting structures.
- Brief explanations of additional equipment such as capacitive voltage transformers, wave traps, and post insulators.
Analysis of example_capacitor_bank_switching_solution_and_recommendations_for...f95346
This document analyzes capacitor bank switching solutions and recommends adopting the Southern States CapSwitcher device. It summarizes that traditional solutions using circuit breakers and reactors cause high damage from arcing during frequent capacitor bank switching. The CapSwitcher limits inrush currents through a pre-insertion resistor, reducing arcing damage by over 90% and extending device life. Adopting the CapSwitcher provides reliability improvements and up to 33% cost savings over traditional solutions.
This document discusses hybrid grounding schemes for the electrical power system of offshore oil and gas installations. Due to space constraints in offshore utility plants, multiple generators often feed directly into 11kV switchgear without generator transformers. This introduces high capacitive charging currents that can damage generator cores during earth faults.
The document evaluates different grounding methods, including high resistance grounding through a neutral earthing resistor for generators and low resistance grounding for the 11kV switchgear through a zig-zag transformer. This hybrid scheme aims to limit fault currents while preventing core damage during single grounding occurrences. Factors like capacitive currents, third harmonic voltages, generator core damage curves, and neutral earthing resistor specifications are also analyzed
The electrical power system in offshore oil & gas installation, consists of a large
distribution network, generally operating in island mode i.e., without grid support. For a compact
utility plate form design, multiple gas turbine-generators without generator transformers, feed
directly to 11kV switchgear. Such a configuration however, introduces high capacitive charging
current (Ico), which is more than the preferred high resistance grounding of generator neutral
through 10A, 10sec resistor, to safeguard the generator core from damage during an earth fault.
Therefore, some utility prefers to select low resistance grounding to limit the fault current above
Ico; however this can cause severe damage to generator core. Generally, oil & gas installation is a
customized design. So, earthing scheme of 11kV generating utility system should be selected
judiciously at basic engineering stage to avoid equipment damage and protection mal-operation
during operation. Different methods of earthing scheme are available to mitigate the same. One of
the method is presented here in which generator neutral is connected to high resistance grounding
and 11kV switchgear connected to low resistance grounding though zig-zag transformer, subject to
single grounding operation at a time. Prior to synchronization or under complete load throw
scenario, generator circuit breaker is opened. So, an earth fault in generator or evacuation system,
create over-voltage or ferro-resonance conditions, stressing insulation of generator and associated
system. This is mitigated by putting neutral earthing resistor into service at generator neutral. This
paper presents the experience learned in designing neutral earthing scheme for off-shore utility
plant in view of high capacitive charging current at 11kV voltage level, outlines impact on stator
core damage, mitigation and conclusion
This paper reviews technologies for enhancing the low voltage ride through (LVRT) capability of wind farms using induction generators. It analyzes how FACTS controllers like STATCOMs or MERs can improve LVRT capability compared to thyristor controlled static var compensators (SVCs). It proposes using transient stability margin as an indicator of LVRT capability and describes a torque slip characteristic approach for estimating the rating of compensation devices needed to ensure stability after a fault. The paper also discusses different wind generator types, LVRT technologies like active crowbars and energy storage, and the role of grid codes in technical requirements for connecting wind farms to the grid.
This paper reviews technologies for enhancing the low voltage ride through (LVRT) capability of wind farms using induction generators. It analyzes how FACTS controllers like STATCOMs or MERs can improve LVRT capability compared to thyristor controlled static var compensators (SVCs). It proposes using transient stability margin as an indicator of LVRT capability and describes a torque slip characteristic approach for estimating the rating of compensation devices needed to ensure stability after a fault. The paper also discusses different wind generator types, LVRT technologies like active crowbars and energy storage, and the role of grid codes in technical requirements for connecting wind farms to the grid.
Parameter Estimation of Neutral Grounding Reactor for a Single Line to Ground...ijtsrd
Single line to ground faults are the most prominent faults in the power system. This may damage the generators and transformers in the system ultimately leading to its failure. Introducing a neutral grounding reactor between the neutral and ground in the high voltage system, will reduce the fault current and hence will protect the power system components. . This paper will discuss the advantages, operation, application and selection of the neutral grounding reactor for transformer. Snehal Pimpalkar | Mr. Mahesh Mankar ""Parameter Estimation of Neutral Grounding Reactor for a Single Line to Ground Fault for Transformer"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-3 , April 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23030.pdf
Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/23030/parameter-estimation-of-neutral-grounding-reactor-for-a-single-line-to-ground-fault-for-transformer/snehal-pimpalkar
Compatibility Design of Non Salient Pole Synchronous Generatorijtsrd
This paper is focused design calculation of 30 MVA, 11 kV, 50 Hz, two pole non salient poles synchronous generator that use in gas turbine power plant. The choices of specific loadings are magnetic loading and electric loading are involved in that design calculation. The number of rotor slot selection main considered in order to avoid the undesirable effects of harmonics in the flux density wave forms. The rotors are cylindrical in shape having parallel slots on it to place rotor windings. The design system is compatibility based on where specific magnetic loading or specific electric loading with synchronous generator generate more electrical power and to get better performance. The relation between specific loading and volume of the generator, short circuit ratio and air gap length, comparison design data and efficiency due to load changing are mainly emphasized studying in this paper. Thant Zaw Oo | Aye Myo Thant ""Compatibility Design of Non-Salient Pole Synchronous Generator"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd24026.pdf
Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/24026/compatibility-design-of-non-salient-pole-synchronous-generator/thant-zaw-oo
Improved performance of asd under voltage sag conditionsIAEME Publication
This document summarizes a research paper that proposes a new combination technique using a neutral linked Vienna rectifier and Z-source inverter to improve the performance of adjustable speed drives (ASDs) under voltage sag conditions. The technique aims to control voltage sags at the front end to prevent issues in the inverter at the back end. Simulation results show the proposed combination provides more stable DC link voltage and motor speed during sags compared to a normal rectifier and Z-source inverter alone. The research presents the design methodology, calculations, circuit diagram, and experimental waveforms that validate the improved ride through capability of the motor drive system using the neutral linked Vienna rectifier and Z-source inverter combination.
Improved performance of asd under voltage sag conditionsIAEME Publication
This document summarizes a research paper that proposes a new combination technique using a neutral linked Vienna rectifier and Z-source inverter to improve the performance of adjustable speed drives (ASDs) under voltage sag conditions. The technique aims to reduce the effects of voltage sags by providing more stable DC link voltage. Simulation results show that the proposed combination is able to maintain the DC link voltage between 150V to 450V during a sag, preventing large reductions in motor speed, and performs better than a system using only a diode rectifier and Z-source inverter. The researchers conclude that the neutral linked Vienna rectifier with Z-source inverter provides improved ride-through capability for motors even during voltage sag events.
IRJET- Design of Single Phase High Frequency Inverter for Wireless Charging A...IRJET Journal
1. The document describes the design of a single phase high frequency inverter using an SG3525A PWM control circuit IC for wireless electric vehicle charging applications. The inverter is capable of producing 12V AC voltage at 85kHz as specified by standards.
2. The design uses the SG3525A IC which contains built-in circuitry for PWM control without complex external circuitry. It also has soft start capability and undervoltage lockout. IRFZ44 MOSFETs are used as switching devices in a full-bridge configuration controlled by the IC.
3. The design was able to produce the target 85kHz, 12V AC voltage for experimental wireless charging purposes. Standards specify operating
This document summarizes techniques for providing low voltage ride through (LVRT) capability for doubly fed induction generator (DFIG) wind turbine systems. It discusses three main techniques:
1) Active crowbar protection disconnects the rotor side converter during faults to protect it, turning the generator into a squirrel cage induction machine. This allows the DFIG to stay connected but draws a large reactive power.
2) Flexible AC transmission systems (FACTS) devices like STATCOM and dynamic voltage restorer (DVR) can provide external protection by injecting compensating voltages. Using a DVR avoids the need for internal DFIG protection methods.
3) Stator current feedback is investigated as another technique for
Renewable Energy Harvesting Using SuperCapacitorIRJET Journal
This document summarizes research on renewable energy harvesting using supercapacitors. It discusses using supercapacitors instead of batteries for energy storage in low-power smart sensor systems. Various energy transducers are described that convert ambient energy sources like solar, thermal, vibration and wireless power into electricity. Circuit designs are discussed that maximize energy harvesting efficiency and charge supercapacitors. Key advantages of supercapacitors over batteries are their longer lifecycles, faster charging/discharging, and ability to withstand many charge/discharge cycles. The document concludes supercapacitor-based energy harvesting can enable cost-effective, compact and long-lived smart sensor nodes.
This document discusses generator grounding and neutral grounding. It provides information on different grounding methods like solid grounding, low resistance grounding, and high resistance grounding. It explains that the method used depends on factors like system voltage level, generator design, fault current levels, and capacitive charging currents. High resistance grounding is generally preferred as it limits fault currents while allowing faults to be detected.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
This document summarizes the design and development of a high frequency, high efficiency multiple output forward converter using an UCC2891 controller. It begins with design specifications including input/output voltages and currents. It then describes the forward converter topology with active clamp reset and coupled inductor outputs. The summary discusses:
1) Transformer and active clamp design calculations including turns ratio, area product, and clamp capacitor value.
2) MOSFET and output filter component selection based on voltage, current and switching frequency requirements.
3) Use of the UCC2891 controller which simplifies active clamp operation and provides maximum duty cycle clamp and delay timing between switches for zero voltage switching.
4) Under voltage lock
Unbalanced Voltage Impacts and its Analysis on an Induction MotorIRJET Journal
This document discusses the impacts of unbalanced voltage on induction motors. It begins by introducing the topic and defining voltage unbalance. It then discusses how voltage unbalance can increase motor losses like copper losses, and cause overheating, vibration, and reduced efficiency. The document also presents a case study where a 7.5kW induction motor is analyzed under different levels of voltage unbalance to study its performance and losses. It concludes by discussing industry standards for voltage unbalance and the need to derate motors operated with over 5% voltage unbalance to prevent overheating damage.
TCSC AND SVC OPTIMAL LOCATION TO IMPROVE THE PERFORMANCE OF POWER SYSTEM WITH...eeiej_journal
Wind generation connection to power system affects steady state and transient stability. Furthermore, this
effect increases with the increase of wind penetration in generation capacity. In this paper optimal location
of FACTS devices is carried out to solve the steady state problems of wind penetration. Two case studies
are carried out on modified IEEE39 bus system one with wind reduction to 20% and the second with wind
penetration increase by 50% in the two cases system suffer from outage of one generator with load at bus
39 decreases from 1104 MW to 900 MW.
Application of crowbar protection on dfig based wind turbine connected to grid-2IAEME Publication
This document summarizes a research paper about providing voltage stability support for doubly fed induction generator (DFIG) wind turbines connected to weak power grids. It introduces DFIG technology and describes the modeling and control of the DFIG, including its rotor side converter control strategy. It then analyzes the short circuit current contribution of DFIG wind turbines during faults using crowbar and DC chopper protection. The objectives are to analyze fault current, investigate voltage profiles during subtransmission and medium voltage faults, and develop methods to improve voltage support from wind farms during grid disturbances.
This document discusses two improved protection schemes for doubly fed induction generator (DFIG) based wind turbines during grid faults. It begins with background on how grid faults negatively impact DFIG wind turbines by causing stator and rotor overcurrents, DC-link overvoltage, torque oscillations, and active/reactive power fluctuations. It then presents two proposed protection schemes - a series resistor scheme that limits rotor overcurrent by inserting a resistor during faults, and a crowbar and DC-chopper scheme that uses crowbar resistors and a DC chopper to limit overcurrent and overvoltage. The document compares simulations of these schemes under symmetrical and asymmetrical grid faults to evaluate their effectiveness in improving DFIG performance during faults.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Ground faults in generator stator and field/rotor circuits are serious events that can lead to damage, costly repair, extended outage and loss of revenue.
This paper explores advances in field/rotor circuit ground fault and stator ground fault protection. These advanced protection strategies employ AC injection and other tactics to provide benefits in security, sensitivity and speed.
Submission Deadline: 30th September 2022
Acceptance Notification: Within Three Days’ time period
Online Publication: Within 24 Hrs. time Period
Expected Date of Dispatch of Printed Journal: 5th October 2022
MODELING AND ANALYSIS OF SURFACE ROUGHNESS AND WHITE LATER THICKNESS IN WIRE-...IAEME Publication
White layer thickness (WLT) formed and surface roughness in wire electric discharge turning (WEDT) of tungsten carbide composite has been made to model through response surface methodology (RSM). A Taguchi’s standard Design of experiments involving five input variables with three levels has been employed to establish a mathematical model between input parameters and responses. Percentage of cobalt content, spindle speed, Pulse on-time, wire feed and pulse off-time were changed during the experimental tests based on the Taguchi’s orthogonal array L27 (3^13). Analysis of variance (ANOVA) revealed that the mathematical models obtained can adequately describe performance within the parameters of the factors considered. There was a good agreement between the experimental and predicted values in this study.
A STUDY ON THE REASONS FOR TRANSGENDER TO BECOME ENTREPRENEURSIAEME Publication
The study explores the reasons for a transgender to become entrepreneurs. In this study transgender entrepreneur was taken as independent variable and reasons to become as dependent variable. Data were collected through a structured questionnaire containing a five point Likert Scale. The study examined the data of 30 transgender entrepreneurs in Salem Municipal Corporation of Tamil Nadu State, India. Simple Random sampling technique was used. Garrett Ranking Technique (Percentile Position, Mean Scores) was used as the analysis for the present study to identify the top 13 stimulus factors for establishment of trans entrepreneurial venture. Economic advancement of a nation is governed upon the upshot of a resolute entrepreneurial doings. The conception of entrepreneurship has stretched and materialized to the socially deflated uncharted sections of transgender community. Presently transgenders have smashed their stereotypes and are making recent headlines of achievements in various fields of our Indian society. The trans-community is gradually being observed in a new light and has been trying to achieve prospective growth in entrepreneurship. The findings of the research revealed that the optimistic changes are taking place to change affirmative societal outlook of the transgender for entrepreneurial ventureship. It also laid emphasis on other transgenders to renovate their traditional living. The paper also highlights that legislators, supervisory body should endorse an impartial canons and reforms in Tamil Nadu Transgender Welfare Board Association.
BROAD UNEXPOSED SKILLS OF TRANSGENDER ENTREPRENEURSIAEME Publication
Since ages gender difference is always a debatable theme whether caused by nature, evolution or environment. The birth of a transgender is dreadful not only for the child but also for their parents. The pain of living in the wrong physique and treated as second class victimized citizen is outrageous and fully harboured with vicious baseless negative scruples. For so long, social exclusion had perpetuated inequality and deprivation experiencing ingrained malign stigma and besieged victims of crime or violence across their life spans. They are pushed into the murky way of life with a source of eternal disgust, bereft sexual potency and perennial fear. Although they are highly visible but very little is known about them. The common public needs to comprehend the ravaged arrogance on these insensitive souls and assist in integrating them into the mainstream by offering equal opportunity, treat with humanity and respect their dignity. Entrepreneurship in the current age is endorsing the gender fairness movement. Unstable careers and economic inadequacy had inclined one of the gender variant people called Transgender to become entrepreneurs. These tiny budding entrepreneurs resulted in economic transition by means of employment, free from the clutches of stereotype jobs, raised standard of living and handful of financial empowerment. Besides all these inhibitions, they were able to witness a platform for skill set development that ignited them to enter into entrepreneurial domain. This paper epitomizes skill sets involved in trans-entrepreneurs of Thoothukudi Municipal Corporation of Tamil Nadu State and is a groundbreaking determination to sightsee various skills incorporated and the impact on entrepreneurship.
DETERMINANTS AFFECTING THE USER'S INTENTION TO USE MOBILE BANKING APPLICATIONSIAEME Publication
The banking and financial services industries are experiencing increased technology penetration. Among them, the banking industry has made technological advancements to better serve the general populace. The economy focused on transforming the banking sector's system into a cashless, paperless, and faceless one. The researcher wants to evaluate the user's intention for utilising a mobile banking application. The study also examines the variables affecting the user's behaviour intention when selecting specific applications for financial transactions. The researcher employed a well-structured questionnaire and a descriptive study methodology to gather the respondents' primary data utilising the snowball sampling technique. The study includes variables like performance expectations, effort expectations, social impact, enabling circumstances, and perceived risk. Each of the aforementioned variables has a major impact on how users utilise mobile banking applications. The outcome will assist the service provider in comprehending the user's history with mobile banking applications.
ANALYSE THE USER PREDILECTION ON GPAY AND PHONEPE FOR DIGITAL TRANSACTIONSIAEME Publication
Technology upgradation in banking sector took the economy to view that payment mode towards online transactions using mobile applications. This system enabled connectivity between banks, Merchant and user in a convenient mode. there are various applications used for online transactions such as Google pay, Paytm, freecharge, mobikiwi, oxygen, phonepe and so on and it also includes mobile banking applications. The study aimed at evaluating the predilection of the user in adopting digital transaction. The study is descriptive in nature. The researcher used random sample techniques to collect the data. The findings reveal that mobile applications differ with the quality of service rendered by Gpay and Phonepe. The researcher suggest the Phonepe application should focus on implementing the application should be user friendly interface and Gpay on motivating the users to feel the importance of request for money and modes of payments in the application.
VOICE BASED ATM FOR VISUALLY IMPAIRED USING ARDUINOIAEME Publication
The prototype of a voice-based ATM for visually impaired using Arduino is to help people who are blind. This uses RFID cards which contain users fingerprint encrypted on it and interacts with the users through voice commands. ATM operates when sensor detects the presence of one person in the cabin. After scanning the RFID card, it will ask to select the mode like –normal or blind. User can select the respective mode through voice input, if blind mode is selected the balance check or cash withdraw can be done through voice input. Normal mode procedure is same as the existing ATM.
IMPACT OF EMOTIONAL INTELLIGENCE ON HUMAN RESOURCE MANAGEMENT PRACTICES AMONG...IAEME Publication
There is increasing acceptability of emotional intelligence as a major factor in personality assessment and effective human resource management. Emotional intelligence as the ability to build capacity, empathize, co-operate, motivate and develop others cannot be divorced from both effective performance and human resource management systems. The human person is crucial in defining organizational leadership and fortunes in terms of challenges and opportunities and walking across both multinational and bilateral relationships. The growing complexity of the business world requires a great deal of self-confidence, integrity, communication, conflict and diversity management to keep the global enterprise within the paths of productivity and sustainability. Using the exploratory research design and 255 participants the result of this original study indicates strong positive correlation between emotional intelligence and effective human resource management. The paper offers suggestions on further studies between emotional intelligence and human capital development and recommends for conflict management as an integral part of effective human resource management.
VISUALISING AGING PARENTS & THEIR CLOSE CARERS LIFE JOURNEY IN AGING ECONOMYIAEME Publication
Our life journey, in general, is closely defined by the way we understand the meaning of why we coexist and deal with its challenges. As we develop the "inspiration economy", we could say that nearly all of the challenges we have faced are opportunities that help us to discover the rest of our journey. In this note paper, we explore how being faced with the opportunity of being a close carer for an aging parent with dementia brought intangible discoveries that changed our insight of the meaning of the rest of our life journey.
A STUDY ON THE IMPACT OF ORGANIZATIONAL CULTURE ON THE EFFECTIVENESS OF PERFO...IAEME Publication
The main objective of this study is to analyze the impact of aspects of Organizational Culture on the Effectiveness of the Performance Management System (PMS) in the Health Care Organization at Thanjavur. Organizational Culture and PMS play a crucial role in present-day organizations in achieving their objectives. PMS needs employees’ cooperation to achieve its intended objectives. Employees' cooperation depends upon the organization’s culture. The present study uses exploratory research to examine the relationship between the Organization's culture and the Effectiveness of the Performance Management System. The study uses a Structured Questionnaire to collect the primary data. For this study, Thirty-six non-clinical employees were selected from twelve randomly selected Health Care organizations at Thanjavur. Thirty-two fully completed questionnaires were received.
Living in 21st century in itself reminds all of us the necessity of police and its administration. As more and more we are entering into the modern society and culture, the more we require the services of the so called ‘Khaki Worthy’ men i.e., the police personnel. Whether we talk of Indian police or the other nation’s police, they all have the same recognition as they have in India. But as already mentioned, their services and requirements are different after the like 26th November, 2008 incidents, where they without saving their own lives has sacrificed themselves without any hitch and without caring about their respective family members and wards. In other words, they are like our heroes and mentors who can guide us from the darkness of fear, militancy, corruption and other dark sides of life and so on. Now the question arises, if Gandhi would have been alive today, what would have been his reaction/opinion to the police and its functioning? Would he have some thing different in his mind now what he had been in his mind before the partition or would he be going to start some Satyagraha in the form of some improvement in the functioning of the police administration? Really these questions or rather night mares can come to any one’s mind, when there is too much confusion is prevailing in our minds, when there is too much corruption in the society and when the polices working is also in the questioning because of one or the other case throughout the India. It is matter of great concern that we have to thing over our administration and our practical approach because the police personals are also like us, they are part and parcel of our society and among one of us, so why we all are pin pointing towards them.
A STUDY ON TALENT MANAGEMENT AND ITS IMPACT ON EMPLOYEE RETENTION IN SELECTED...IAEME Publication
The goal of this study was to see how talent management affected employee retention in the selected IT organizations in Chennai. The fundamental issue was the difficulty to attract, hire, and retain talented personnel who perform well and the gap between supply and demand of talent acquisition and retaining them within the firms. The study's main goals were to determine the impact of talent management on employee retention in IT companies in Chennai, investigate talent management strategies that IT companies could use to improve talent acquisition, performance management, career planning and formulate retention strategies that the IT firms could use. The respondents were given a structured close-ended questionnaire with the 5 Point Likert Scale as part of the study's quantitative research design. The target population consisted of 289 IT professionals. The questionnaires were distributed and collected by the researcher directly. The Statistical Package for Social Sciences (SPSS) was used to collect and analyse the questionnaire responses. Hypotheses that were formulated for the various areas of the study were tested using a variety of statistical tests. The key findings of the study suggested that talent management had an impact on employee retention. The studies also found that there is a clear link between the implementation of talent management and retention measures. Management should provide enough training and development for employees, clarify job responsibilities, provide adequate remuneration packages, and recognise employees for exceptional performance.
ATTRITION IN THE IT INDUSTRY DURING COVID-19 PANDEMIC: LINKING EMOTIONAL INTE...IAEME Publication
Globally, Millions of dollars were spent by the organizations for employing skilled Information Technology (IT) professionals. It is costly to replace unskilled employees with IT professionals possessing technical skills and competencies that aid in interconnecting the business processes. The organization’s employment tactics were forced to alter by globalization along with technological innovations as they consistently diminish to remain lean, outsource to concentrate on core competencies along with restructuring/reallocate personnel to gather efficiency. As other jobs, organizations or professions have become reasonably more appropriate in a shifting employment landscape, the above alterations trigger both involuntary as well as voluntary turnover. The employee view on jobs is also afflicted by the COVID-19 pandemic along with the employee-driven labour market. So, having effective strategies is necessary to tackle the withdrawal rate of employees. By associating Emotional Intelligence (EI) along with Talent Management (TM) in the IT industry, the rise in attrition rate was analyzed in this study. Only 303 respondents were collected out of 350 participants to whom questionnaires were distributed. From the employees of IT organizations located in Bangalore (India), the data were congregated. A simple random sampling methodology was employed to congregate data as of the respondents. Generating the hypothesis along with testing is eventuated. The effect of EI and TM along with regression analysis between TM and EI was analyzed. The outcomes indicated that employee and Organizational Performance (OP) were elevated by effective EI along with TM.
INFLUENCE OF TALENT MANAGEMENT PRACTICES ON ORGANIZATIONAL PERFORMANCE A STUD...IAEME Publication
By implementing talent management strategy, organizations would have the option to retain their skilled professionals while additionally working on their overall performance. It is the course of appropriately utilizing the ideal individuals, setting them up for future top positions, exploring and dealing with their performance, and holding them back from leaving the organization. It is employee performance that determines the success of every organization. The firm quickly obtains an upper hand over its rivals in the event that its employees having particular skills that cannot be duplicated by the competitors. Thus, firms are centred on creating successful talent management practices and processes to deal with the unique human resources. Firms are additionally endeavouring to keep their top/key staff since on the off chance that they leave; the whole store of information leaves the firm's hands. The study's objective was to determine the impact of talent management on organizational performance among the selected IT organizations in Chennai. The study recommends that talent management limitedly affects performance. On the off chance that this talent is appropriately management and implemented properly, organizations might benefit as much as possible from their maintained assets to support development and productivity, both monetarily and non-monetarily.
A STUDY OF VARIOUS TYPES OF LOANS OF SELECTED PUBLIC AND PRIVATE SECTOR BANKS...IAEME Publication
Banking regulations act of India, 1949 defines banking as “acceptance of deposits for the purpose of lending or investment from the public, repayment on demand or otherwise and withdrawable through cheques, drafts order or otherwise”, the major participants of the Indian financial system are commercial banks, the financial institution encompassing term lending institutions. Investments institutions, specialized financial institution and the state level development banks, non banking financial companies (NBFC) and other market intermediaries such has the stock brokers and money lenders are among the oldest of the certain variants of NBFC and the oldest market participants. The asset quality of banks is one of the most important indicators of their financial health. The Indian banking sector has been facing severe problems of increasing Non- Performing Assets (NPAs). The NPAs growth directly and indirectly affects the quality of assets and profitability of banks. It also shows the efficiency of banks credit risk management and the recovery effectiveness. NPA do not generate any income, whereas, the bank is required to make provisions for such as assets that why is a double edge weapon. This paper outlines the concept of quality of bank loans of different types like Housing, Agriculture and MSME loans in state Haryana of selected public and private sector banks. This study is highlighting problems associated with the role of commercial bank in financing Small and Medium Scale Enterprises (SME). The overall objective of the research was to assess the effect of the financing provisions existing for the setting up and operations of MSMEs in the country and to generate recommendations for more robust financing mechanisms for successful operation of the MSMEs, in turn understanding the impact of MSME loans on financial institutions due to NPA. There are many research conducted on the topic of Non- Performing Assets (NPA) Management, concerning particular bank, comparative study of public and private banks etc. In this paper the researcher is considering the aggregate data of selected public sector and private sector banks and attempts to compare the NPA of Housing, Agriculture and MSME loans in state Haryana of public and private sector banks. The tools used in the study are average and Anova test and variance. The findings reveal that NPA is common problem for both public and private sector banks and is associated with all types of loans either that is housing loans, agriculture loans and loans to SMES. NPAs of both public and private sector banks show the increasing trend. In 2010-11 GNPA of public and private sector were at same level it was 2% but after 2010-11 it increased in many fold and at present there is GNPA in some more than 15%. It shows the dark area of Indian banking sector.
EXPERIMENTAL STUDY OF MECHANICAL AND TRIBOLOGICAL RELATION OF NYLON/BaSO4 POL...IAEME Publication
An experiment conducted in this study found that BaSO4 changed Nylon 6's mechanical properties. By changing the weight ratios, BaSO4 was used to make Nylon 6. This Researcher looked into how hard Nylon-6/BaSO4 composites are and how well they wear. Experiments were done based on Taguchi design L9. Nylon-6/BaSO4 composites can be tested for their hardness number using a Rockwell hardness testing apparatus. On Nylon/BaSO4, the wear behavior was measured by a wear monitor, pinon-disc friction by varying reinforcement, sliding speed, and sliding distance, and the microstructure of the crack surfaces was observed by SEM. This study provides significant contributions to ultimate strength by increasing BaSO4 content up to 16% in the composites, and sliding speed contributes 72.45% to the wear rate
ROLE OF SOCIAL ENTREPRENEURSHIP IN RURAL DEVELOPMENT OF INDIA - PROBLEMS AND ...IAEME Publication
The majority of the population in India lives in villages. The village is the back bone of the country. Village or rural industries play an important role in the national economy, particularly in the rural development. Developing the rural economy is one of the key indicators towards a country’s success. Whether it be the need to look after the welfare of the farmers or invest in rural infrastructure, Governments have to ensure that rural development isn’t compromised. The economic development of our country largely depends on the progress of rural areas and the standard of living of rural masses. Village or rural industries play an important role in the national economy, particularly in the rural development. Rural entrepreneurship is based on stimulating local entrepreneurial talent and the subsequent growth of indigenous enterprises. It recognizes opportunity in the rural areas and accelerates a unique blend of resources either inside or outside of agriculture. Rural entrepreneurship brings an economic value to the rural sector by creating new methods of production, new markets, new products and generate employment opportunities thereby ensuring continuous rural development. Social Entrepreneurship has the direct and primary objective of serving the society along with the earning profits. So, social entrepreneurship is different from the economic entrepreneurship as its basic objective is not to earn profits but for providing innovative solutions to meet the society needs which are not taken care by majority of the entrepreneurs as they are in the business for profit making as a sole objective. So, the Social Entrepreneurs have the huge growth potential particularly in the developing countries like India where we have huge societal disparities in terms of the financial positions of the population. Still 22 percent of the Indian population is below the poverty line and also there is disparity among the rural & urban population in terms of families living under BPL. 25.7 percent of the rural population & 13.7 percent of the urban population is under BPL which clearly shows the disparity of the poor people in the rural and urban areas. The need to develop social entrepreneurship in agriculture is dictated by a large number of social problems. Such problems include low living standards, unemployment, and social tension. The reasons that led to the emergence of the practice of social entrepreneurship are the above factors. The research problem lays upon disclosing the importance of role of social entrepreneurship in rural development of India. The paper the tendencies of social entrepreneurship in India, to present successful examples of such business for providing recommendations how to improve situation in rural areas in terms of social entrepreneurship development. Indian government has made some steps towards development of social enterprises, social entrepreneurship, and social in- novation, but a lot remains to be improved.
OPTIMAL RECONFIGURATION OF POWER DISTRIBUTION RADIAL NETWORK USING HYBRID MET...IAEME Publication
Distribution system is a critical link between the electric power distributor and the consumers. Most of the distribution networks commonly used by the electric utility is the radial distribution network. However in this type of network, it has technical issues such as enormous power losses which affect the quality of the supply. Nowadays, the introduction of Distributed Generation (DG) units in the system help improve and support the voltage profile of the network as well as the performance of the system components through power loss mitigation. In this study network reconfiguration was done using two meta-heuristic algorithms Particle Swarm Optimization and Gravitational Search Algorithm (PSO-GSA) to enhance power quality and voltage profile in the system when simultaneously applied with the DG units. Backward/Forward Sweep Method was used in the load flow analysis and simulated using the MATLAB program. Five cases were considered in the Reconfiguration based on the contribution of DG units. The proposed method was tested using IEEE 33 bus system. Based on the results, there was a voltage profile improvement in the system from 0.9038 p.u. to 0.9594 p.u.. The integration of DG in the network also reduced power losses from 210.98 kW to 69.3963 kW. Simulated results are drawn to show the performance of each case.
APPLICATION OF FRUGAL APPROACH FOR PRODUCTIVITY IMPROVEMENT - A CASE STUDY OF...IAEME Publication
Manufacturing industries have witnessed an outburst in productivity. For productivity improvement manufacturing industries are taking various initiatives by using lean tools and techniques. However, in different manufacturing industries, frugal approach is applied in product design and services as a tool for improvement. Frugal approach contributed to prove less is more and seems indirectly contributing to improve productivity. Hence, there is need to understand status of frugal approach application in manufacturing industries. All manufacturing industries are trying hard and putting continuous efforts for competitive existence. For productivity improvements, manufacturing industries are coming up with different effective and efficient solutions in manufacturing processes and operations. To overcome current challenges, manufacturing industries have started using frugal approach in product design and services. For this study, methodology adopted with both primary and secondary sources of data. For primary source interview and observation technique is used and for secondary source review has done based on available literatures in website, printed magazines, manual etc. An attempt has made for understanding application of frugal approach with the study of manufacturing industry project. Manufacturing industry selected for this project study is Mahindra and Mahindra Ltd. This paper will help researcher to find the connections between the two concepts productivity improvement and frugal approach. This paper will help to understand significance of frugal approach for productivity improvement in manufacturing industry. This will also help to understand current scenario of frugal approach in manufacturing industry. In manufacturing industries various process are involved to deliver the final product. In the process of converting input in to output through manufacturing process productivity plays very critical role. Hence this study will help to evolve status of frugal approach in productivity improvement programme. The notion of frugal can be viewed as an approach towards productivity improvement in manufacturing industries.
A MULTIPLE – CHANNEL QUEUING MODELS ON FUZZY ENVIRONMENTIAEME Publication
In this paper, we investigated a queuing model of fuzzy environment-based a multiple channel queuing model (M/M/C) ( /FCFS) and study its performance under realistic conditions. It applies a nonagonal fuzzy number to analyse the relevant performance of a multiple channel queuing model (M/M/C) ( /FCFS). Based on the sub interval average ranking method for nonagonal fuzzy number, we convert fuzzy number to crisp one. Numerical results reveal that the efficiency of this method. Intuitively, the fuzzy environment adapts well to a multiple channel queuing models (M/M/C) ( /FCFS) are very well.
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Full-RAG: A modern architecture for hyper-personalizationZilliz
Mike Del Balso, CEO & Co-Founder at Tecton, presents "Full RAG," a novel approach to AI recommendation systems, aiming to push beyond the limitations of traditional models through a deep integration of contextual insights and real-time data, leveraging the Retrieval-Augmented Generation architecture. This talk will outline Full RAG's potential to significantly enhance personalization, address engineering challenges such as data management and model training, and introduce data enrichment with reranking as a key solution. Attendees will gain crucial insights into the importance of hyperpersonalization in AI, the capabilities of Full RAG for advanced personalization, and strategies for managing complex data integrations for deploying cutting-edge AI solutions.
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?Speck&Tech
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
“An Outlook of the Ongoing and Future Relationship between Blockchain Technologies and Process-aware Information Systems.” Invited talk at the joint workshop on Blockchain for Information Systems (BC4IS) and Blockchain for Trusted Data Sharing (B4TDS), co-located with with the 36th International Conference on Advanced Information Systems Engineering (CAiSE), 3 June 2024, Limassol, Cyprus.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
Created out of a necessity for superior performance in Kaggle competitions, Albumentations has grown to become a widely used tool among data scientists and machine learning practitioners.
This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentations
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
Building RAG with self-deployed Milvus vector database and Snowpark Container...Zilliz
This talk will give hands-on advice on building RAG applications with an open-source Milvus database deployed as a docker container. We will also introduce the integration of Milvus with Snowpark Container Services.
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slackshyamraj55
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.