Power Electronical provides Transformer Oil Testing and Oil Analysis services. Our lab is NABL accreditated, and provide IEC/IS/ASTM standard test services.
This document discusses the testing and maintenance of power transformers. It outlines the various routine tests performed on transformers according to standards, including winding resistance measurement, insulation resistance measurement, high voltage tests, no load and load loss measurements. It also describes type tests such as lightning impulse and short circuit tests. Finally, it discusses the importance of preventive maintenance through regular checks of oil levels, insulation resistance, bushings, connections and other components.
This document discusses power transformer maintenance through field testing. It describes several types of tests that can be performed, including no-load tests to measure turns ratio, polarity and excitation current. Load tests measure short circuit impedance. Winding resistance tests measure the resistance of each winding. Frequency response analysis testing provides information on the electric, dielectric, magnetic and mechanical condition by analyzing the transformer's frequency response signature. Regular field testing using these methods allows monitoring the transformer's condition over time to ensure safe and reliable operation.
This document discusses high voltage transformers and the various types of tests performed on transformers. It describes partial discharge testing, insulation resistance testing, and routine testing. Partial discharge testing detects localized breakdowns in insulation under high voltage stress. Insulation resistance testing measures insulation quality. Routine testing confirms operational performance and checks for manufacturing defects. The document outlines advantages like safety, efficiency, and failure detection, and disadvantages like insufficient oil level and overloading.
Operation and maintenance of transformerKapil Singh
The document provides information on operation and maintenance of distribution transformers. It defines transformers and describes their working principle of mutual electromagnetic induction. It then discusses transformation ratios, the purposes of transformers, their advantages, types, parts, insulation, testing, and maintenance procedures. Key points covered include daily, quarterly and yearly maintenance checks, oil testing parameters, and common transformer tests like ratio, no load, short circuit and insulation tests.
This document outlines 12 test procedures for testing transformers on site, including measuring winding resistance, voltage ratios, short circuit impedance, no-load loss and current, insulation resistance, temperature rise, capacitance and loss factor, zero-sequence impedance, air pressure, unbalance current, magnetic balance, and vacuum integrity.
This document provides a tutorial on transformer maintenance best practices. It outlines a maintenance strategy, process, and considerations for component selection and maintenance. The maintenance strategy discusses factors that influence maintenance practices such as transformer characteristics, duty, and environment. It also presents results from a survey on current maintenance practices. The maintenance process covers planning, organization, execution, recording, and optimization. Levels of competence for maintenance tasks and safety aspects are discussed. Component selection impacts maintenance effort, and considerations for various transformer components are provided.
This document discusses the testing and maintenance of power transformers. It outlines the various routine tests performed on transformers according to standards, including winding resistance measurement, insulation resistance measurement, high voltage tests, no load and load loss measurements. It also describes type tests such as lightning impulse and short circuit tests. Finally, it discusses the importance of preventive maintenance through regular checks of oil levels, insulation resistance, bushings, connections and other components.
This document discusses power transformer maintenance through field testing. It describes several types of tests that can be performed, including no-load tests to measure turns ratio, polarity and excitation current. Load tests measure short circuit impedance. Winding resistance tests measure the resistance of each winding. Frequency response analysis testing provides information on the electric, dielectric, magnetic and mechanical condition by analyzing the transformer's frequency response signature. Regular field testing using these methods allows monitoring the transformer's condition over time to ensure safe and reliable operation.
This document discusses high voltage transformers and the various types of tests performed on transformers. It describes partial discharge testing, insulation resistance testing, and routine testing. Partial discharge testing detects localized breakdowns in insulation under high voltage stress. Insulation resistance testing measures insulation quality. Routine testing confirms operational performance and checks for manufacturing defects. The document outlines advantages like safety, efficiency, and failure detection, and disadvantages like insufficient oil level and overloading.
Operation and maintenance of transformerKapil Singh
The document provides information on operation and maintenance of distribution transformers. It defines transformers and describes their working principle of mutual electromagnetic induction. It then discusses transformation ratios, the purposes of transformers, their advantages, types, parts, insulation, testing, and maintenance procedures. Key points covered include daily, quarterly and yearly maintenance checks, oil testing parameters, and common transformer tests like ratio, no load, short circuit and insulation tests.
This document outlines 12 test procedures for testing transformers on site, including measuring winding resistance, voltage ratios, short circuit impedance, no-load loss and current, insulation resistance, temperature rise, capacitance and loss factor, zero-sequence impedance, air pressure, unbalance current, magnetic balance, and vacuum integrity.
This document provides a tutorial on transformer maintenance best practices. It outlines a maintenance strategy, process, and considerations for component selection and maintenance. The maintenance strategy discusses factors that influence maintenance practices such as transformer characteristics, duty, and environment. It also presents results from a survey on current maintenance practices. The maintenance process covers planning, organization, execution, recording, and optimization. Levels of competence for maintenance tasks and safety aspects are discussed. Component selection impacts maintenance effort, and considerations for various transformer components are provided.
VTU Notes for Testing and commissioning of Electrical Equipment Department of Electrical and Electronics Faculty Name: Mrs Veena Bhat Designation: Assistant Professor Subject: Testing and Commissioning of Electrical equipment Semester: VII
The document provides details on various types of tests that will be performed on transformers, including turns ratio tests, winding resistance tests, no load and load loss measurements, induced overvoltage tests, and tests of the on-load tap changer. The tests are aimed at evaluating the transformer's performance and ensuring it meets design specifications and customer requirements.
Transformer Diagnostics | Sweep Frequency Response AnalysisHamedPasha1
Proper commissioning and periodic testing of high voltage equipment is vital to the longevity of your valuable assets. Research shows that improper commissioning along with “set-and-forget” mentality has been the leading causes of premature failures.
Sweep frequency response analysis (SFRA) is one of the most powerful diagnostic tools for assessing mechanical damage to a transformer winding. Analysis of the results, which are in the form of frequency response traces can, however, be daunting to new users.
1. The document discusses various acceptance criteria, interpretation, and analysis methods for transformer test results, including insulation resistance, impedance, tan delta, turns ratio, dissolved gas analysis (DGA), and frequency domain spectroscopy (FDS) moisture assessment.
2. It provides equations and standards for determining insulation resistance and lists IEEE recommended acceptance criteria for power factor in new vs aged transformers.
3. Guidelines are given for DGA gases levels according to IEEE standards and for physical properties of transformer oil like dielectric dissipation factor and water content.
VTU Notes for Testing and commissioning of Electrical Equipment
Department of Electrical and Electronics
Faculty Name: Mrs Veena Bhat
Designation: Assistant Professor
Subject: Testing and Commissioning of Electrical equipment
Semester: VII
Power transformer testing and commissioning guidelines rAshish Patel
1. The document provides guidelines for testing and commissioning power transformers, including pre-commissioning checks, electrical checks, and tests to be performed. It details tests such as ratio testing, vector grouping, no-load current, short-circuit current, insulation testing, and checks of protections like the Buchholz relay.
2. Key electrical checks include verifying the on-load tap changer operation, measuring no-load currents, performing short-circuit tests, and measuring insulation resistance. The transformer, oil, and protections must pass all tests before energization.
3. After energization, the transformer is monitored for 24 hours to check for abnormalities before full commissioning.
This document provides an overview of transformer asset management (TAM). It discusses that TAM focuses on reliability, risk management, and optimizing lifecycle costs for power transformers. A key part of TAM is developing a Transformer Asset Management Plan (TAMP) that qualitatively assesses transformer condition, risks of extended use, and an effective inventory strategy. Condition monitoring and testing are important to assess transformer health and aging. Asset management tools help calculate expected lifetime based on loading and usage. Procuring spare transformers requires evaluating repair costs, load demands, and risks to minimize outages and losses.
This document discusses maintenance schedules and strategies for electrical substation equipment like power transformers and distribution transformers. It provides daily, monthly, quarterly, half-yearly, and annual maintenance tasks for checking equipment operation and performance. Key tasks include checking oil levels, insulation resistance, dissolved gases in oil, and cleaning/replacing oil filters. The document also summarizes common equipment defects like leaks, loose connections, and winding issues; and stresses on equipment from electrical, thermal, mechanical, and environmental factors that cause deterioration over time.
Transformer Accessories for Testing and ProtectionSAGAR D
Standard Accessories on an Oil Filled Transformer:
Liquid level gauge
Liquid temperature gauge
Pressure-vacuum gauge
Pressure relief device
Winding temperature gauge
Transformer cooling fans
High voltage bushings
Low voltage bushings
De-energized tap-changer
Buchholz relay
galvanized radiators
Breather
Lifting lugs
Jacking facilities
Multi-ratio, current transformers (CTs) for relaying service
Surge arresters
Grounding devices, such as reactors and resistors
De-energized tap changer (DETC)
Load tap changers
Conservator oil preservation systems
Various monitoring devices for gas, oil and winding temperatures; power factor; moisture; etc.
Most customer-specified accessories
Testing and Condition Monitoring of Substation EquipmentsSumeet Ratnawat
Testing and condition monitoring of substation equipments,Transformer specifications,Monitoring of Transformer,On-load Tap changer,Overhauling,Tan delta and capacitance,Thermal imaging,Sweep frequency response analysis,Oil analysis of Switchgear elements containing oil,tests on insulating oil,Breaker monitoring,Condition monitoring of CT,Condition monitoring of CVT,Surge Arresters,Condition monitoring of relays.
The document provides procedures for testing a 3-phase motor that is exhibiting problems. It describes safety precautions and 6 types of tests: 1) general inspection, 2) continuity tests, 3) power supply test, 4) AC motor winding continuity test, 5) insulation resistance test, and 6) running amps test. The tests check for visual damage, grounding integrity, proper voltage levels, winding connections and insulation, and current draw compared to specifications. Identifying failures in these areas can help diagnose motor issues.
Installation, Testing and Troubleshooting of TransformersLiving Online
The document discusses the installation, testing, and troubleshooting of transformers. It describes the different types of tests performed on transformers, including routine tests, type tests, and special tests. Routine tests check characteristics like winding resistance, voltage ratios, losses, and insulation. Special tests examine properties such as dielectric strength, capacitance, and harmonics. The document also outlines standards and procedures for testing, as well as limits for temperature rise and requirements for insulating oil.
This document discusses various tests performed on surge diverters/lightning arresters to ensure they function properly. It describes tests such as the power frequency spark over test to check insulation, the 100% standard impulse spark over test to check operation during transient overvoltages, and residual voltage and high current impulse tests on pro-rated units. Other mechanical, pressure relief, and pollution tests are also conducted to test important properties. The conclusion is that understanding these various tests provides knowledge about surge diverter ratings and testing.
This document summarizes a student project on assessing the life of transformers. It describes the objectives of understanding transformers in detail and studying tests to assess transformer health. It then provides details on different transformer types and components like bushings and accessories. The document outlines transformer design considerations and tests conducted at different stages like preliminary, commissioning and special tests. It discusses techniques like dissolved gas analysis and furan analysis used to monitor transformer condition and residual life.
Catalog for high voltage test equipment (Detailed introduction www.himalayal.com) Himalayal is leading supplier of high voltage test equipments. we provide the test measurement and diagnostic equipment for a wide range of electrical applications (power transformer, power cable, instrument transformer, HV switch, insulator and so on). Test systems for laboratory, factoryand field use are available. As a powerful supplier our service range include special design, manufacturing, engineering, installation, commissioning and technical support.
AC Circuit Breakers Routine Tests according to IEC 62271-100Ali Sepehri
AC Circuit Breakers Routine Tests according to IEC 62271-100
Article direct link: https://www.linkedin.com/pulse/ac-circuit-breakers-routine-tests-according-iec-ali-sepehri/
Installation Operation & Maintenance of 33kV & 11kV SwitchgearSheikh Nazmul Islam
In-Country Training On Operation, Maintenance, Protection & Control of 33/11 kV Substation Project Name: Design, Supply, Installation, Testing & Commissioning of 33/11 kV sub-stations with source end feeder bays. Contract No: BREB/UREDS/W-01A-001/02/2016-2017 BREB/UREDS/W-01A-002/03/2016-2017 BREB/UREDS/W-01A-004/04/2016-2017
The document discusses various types of transformers including liquid-filled padmount transformers, liquid-filled unit substation transformers, VPI dry unit substation transformers, and cast unit substation transformers. It provides information on the differences between dry and liquid transformers and discusses factors such as temperature rise, impedance, insulation classes, noise levels, and efficiency standards. The document is a presentation from Schneider Electric on medium voltage transformer projects and services.
Transformer vector group_test_conditionsSARAVANAN A
The document provides test conditions for various transformer vector groups including YNyn0, YNyn6, Dd0, Dd6, YNd1, YNd11, Dyn11, and Dyn1. For each vector group, 3 measurement conditions are listed that involve measuring voltages between different transformer terminals when voltage is applied to the HV side. The conditions are designed such that satisfying all 3 confirms the vector group by establishing the phase shift between the primary and secondary windings.
Attix5 is an excellent backup solution covering all major platforms and applications. However it also has a very efficient multi-tenant portal. Easy to maintain; quick to deploy.
Faceted Search on Coordinated Tablets and Tabletop: a ComparisonSven Charleer
Slides of our presentation at EICS 2016, Brussels, Belgium.
Large interactive displays and surfaces are useful modalities for visualizing big multi-dimensional data sets. They can offer simultaneous views on different facets of the data which lead to an efficient and effective environment for data exploration and analysis. While every data analyst and enthusiast can benefit from these advantages, large interactive systems are not yet available to everyone. Meanwhile, tablets have become ubiquitous and relatively cheap. Combining multiple tablets to replicate a single, large display has therefore become an affordable option. This paper compares the difference in search performance and user perception of a faceted search system for Cultural Heritage data on a single large interactive tabletop with a system composed of multiple coordinated tablet devices. We conclude that, while users generally prefer the tabletop system, there is no negative impact on search performance using tablets. This makes coordinated tablets a viable and portable solution in the absence of interactive tabletops.
VTU Notes for Testing and commissioning of Electrical Equipment Department of Electrical and Electronics Faculty Name: Mrs Veena Bhat Designation: Assistant Professor Subject: Testing and Commissioning of Electrical equipment Semester: VII
The document provides details on various types of tests that will be performed on transformers, including turns ratio tests, winding resistance tests, no load and load loss measurements, induced overvoltage tests, and tests of the on-load tap changer. The tests are aimed at evaluating the transformer's performance and ensuring it meets design specifications and customer requirements.
Transformer Diagnostics | Sweep Frequency Response AnalysisHamedPasha1
Proper commissioning and periodic testing of high voltage equipment is vital to the longevity of your valuable assets. Research shows that improper commissioning along with “set-and-forget” mentality has been the leading causes of premature failures.
Sweep frequency response analysis (SFRA) is one of the most powerful diagnostic tools for assessing mechanical damage to a transformer winding. Analysis of the results, which are in the form of frequency response traces can, however, be daunting to new users.
1. The document discusses various acceptance criteria, interpretation, and analysis methods for transformer test results, including insulation resistance, impedance, tan delta, turns ratio, dissolved gas analysis (DGA), and frequency domain spectroscopy (FDS) moisture assessment.
2. It provides equations and standards for determining insulation resistance and lists IEEE recommended acceptance criteria for power factor in new vs aged transformers.
3. Guidelines are given for DGA gases levels according to IEEE standards and for physical properties of transformer oil like dielectric dissipation factor and water content.
VTU Notes for Testing and commissioning of Electrical Equipment
Department of Electrical and Electronics
Faculty Name: Mrs Veena Bhat
Designation: Assistant Professor
Subject: Testing and Commissioning of Electrical equipment
Semester: VII
Power transformer testing and commissioning guidelines rAshish Patel
1. The document provides guidelines for testing and commissioning power transformers, including pre-commissioning checks, electrical checks, and tests to be performed. It details tests such as ratio testing, vector grouping, no-load current, short-circuit current, insulation testing, and checks of protections like the Buchholz relay.
2. Key electrical checks include verifying the on-load tap changer operation, measuring no-load currents, performing short-circuit tests, and measuring insulation resistance. The transformer, oil, and protections must pass all tests before energization.
3. After energization, the transformer is monitored for 24 hours to check for abnormalities before full commissioning.
This document provides an overview of transformer asset management (TAM). It discusses that TAM focuses on reliability, risk management, and optimizing lifecycle costs for power transformers. A key part of TAM is developing a Transformer Asset Management Plan (TAMP) that qualitatively assesses transformer condition, risks of extended use, and an effective inventory strategy. Condition monitoring and testing are important to assess transformer health and aging. Asset management tools help calculate expected lifetime based on loading and usage. Procuring spare transformers requires evaluating repair costs, load demands, and risks to minimize outages and losses.
This document discusses maintenance schedules and strategies for electrical substation equipment like power transformers and distribution transformers. It provides daily, monthly, quarterly, half-yearly, and annual maintenance tasks for checking equipment operation and performance. Key tasks include checking oil levels, insulation resistance, dissolved gases in oil, and cleaning/replacing oil filters. The document also summarizes common equipment defects like leaks, loose connections, and winding issues; and stresses on equipment from electrical, thermal, mechanical, and environmental factors that cause deterioration over time.
Transformer Accessories for Testing and ProtectionSAGAR D
Standard Accessories on an Oil Filled Transformer:
Liquid level gauge
Liquid temperature gauge
Pressure-vacuum gauge
Pressure relief device
Winding temperature gauge
Transformer cooling fans
High voltage bushings
Low voltage bushings
De-energized tap-changer
Buchholz relay
galvanized radiators
Breather
Lifting lugs
Jacking facilities
Multi-ratio, current transformers (CTs) for relaying service
Surge arresters
Grounding devices, such as reactors and resistors
De-energized tap changer (DETC)
Load tap changers
Conservator oil preservation systems
Various monitoring devices for gas, oil and winding temperatures; power factor; moisture; etc.
Most customer-specified accessories
Testing and Condition Monitoring of Substation EquipmentsSumeet Ratnawat
Testing and condition monitoring of substation equipments,Transformer specifications,Monitoring of Transformer,On-load Tap changer,Overhauling,Tan delta and capacitance,Thermal imaging,Sweep frequency response analysis,Oil analysis of Switchgear elements containing oil,tests on insulating oil,Breaker monitoring,Condition monitoring of CT,Condition monitoring of CVT,Surge Arresters,Condition monitoring of relays.
The document provides procedures for testing a 3-phase motor that is exhibiting problems. It describes safety precautions and 6 types of tests: 1) general inspection, 2) continuity tests, 3) power supply test, 4) AC motor winding continuity test, 5) insulation resistance test, and 6) running amps test. The tests check for visual damage, grounding integrity, proper voltage levels, winding connections and insulation, and current draw compared to specifications. Identifying failures in these areas can help diagnose motor issues.
Installation, Testing and Troubleshooting of TransformersLiving Online
The document discusses the installation, testing, and troubleshooting of transformers. It describes the different types of tests performed on transformers, including routine tests, type tests, and special tests. Routine tests check characteristics like winding resistance, voltage ratios, losses, and insulation. Special tests examine properties such as dielectric strength, capacitance, and harmonics. The document also outlines standards and procedures for testing, as well as limits for temperature rise and requirements for insulating oil.
This document discusses various tests performed on surge diverters/lightning arresters to ensure they function properly. It describes tests such as the power frequency spark over test to check insulation, the 100% standard impulse spark over test to check operation during transient overvoltages, and residual voltage and high current impulse tests on pro-rated units. Other mechanical, pressure relief, and pollution tests are also conducted to test important properties. The conclusion is that understanding these various tests provides knowledge about surge diverter ratings and testing.
This document summarizes a student project on assessing the life of transformers. It describes the objectives of understanding transformers in detail and studying tests to assess transformer health. It then provides details on different transformer types and components like bushings and accessories. The document outlines transformer design considerations and tests conducted at different stages like preliminary, commissioning and special tests. It discusses techniques like dissolved gas analysis and furan analysis used to monitor transformer condition and residual life.
Catalog for high voltage test equipment (Detailed introduction www.himalayal.com) Himalayal is leading supplier of high voltage test equipments. we provide the test measurement and diagnostic equipment for a wide range of electrical applications (power transformer, power cable, instrument transformer, HV switch, insulator and so on). Test systems for laboratory, factoryand field use are available. As a powerful supplier our service range include special design, manufacturing, engineering, installation, commissioning and technical support.
AC Circuit Breakers Routine Tests according to IEC 62271-100Ali Sepehri
AC Circuit Breakers Routine Tests according to IEC 62271-100
Article direct link: https://www.linkedin.com/pulse/ac-circuit-breakers-routine-tests-according-iec-ali-sepehri/
Installation Operation & Maintenance of 33kV & 11kV SwitchgearSheikh Nazmul Islam
In-Country Training On Operation, Maintenance, Protection & Control of 33/11 kV Substation Project Name: Design, Supply, Installation, Testing & Commissioning of 33/11 kV sub-stations with source end feeder bays. Contract No: BREB/UREDS/W-01A-001/02/2016-2017 BREB/UREDS/W-01A-002/03/2016-2017 BREB/UREDS/W-01A-004/04/2016-2017
The document discusses various types of transformers including liquid-filled padmount transformers, liquid-filled unit substation transformers, VPI dry unit substation transformers, and cast unit substation transformers. It provides information on the differences between dry and liquid transformers and discusses factors such as temperature rise, impedance, insulation classes, noise levels, and efficiency standards. The document is a presentation from Schneider Electric on medium voltage transformer projects and services.
Transformer vector group_test_conditionsSARAVANAN A
The document provides test conditions for various transformer vector groups including YNyn0, YNyn6, Dd0, Dd6, YNd1, YNd11, Dyn11, and Dyn1. For each vector group, 3 measurement conditions are listed that involve measuring voltages between different transformer terminals when voltage is applied to the HV side. The conditions are designed such that satisfying all 3 confirms the vector group by establishing the phase shift between the primary and secondary windings.
Attix5 is an excellent backup solution covering all major platforms and applications. However it also has a very efficient multi-tenant portal. Easy to maintain; quick to deploy.
Faceted Search on Coordinated Tablets and Tabletop: a ComparisonSven Charleer
Slides of our presentation at EICS 2016, Brussels, Belgium.
Large interactive displays and surfaces are useful modalities for visualizing big multi-dimensional data sets. They can offer simultaneous views on different facets of the data which lead to an efficient and effective environment for data exploration and analysis. While every data analyst and enthusiast can benefit from these advantages, large interactive systems are not yet available to everyone. Meanwhile, tablets have become ubiquitous and relatively cheap. Combining multiple tablets to replicate a single, large display has therefore become an affordable option. This paper compares the difference in search performance and user perception of a faceted search system for Cultural Heritage data on a single large interactive tabletop with a system composed of multiple coordinated tablet devices. We conclude that, while users generally prefer the tabletop system, there is no negative impact on search performance using tablets. This makes coordinated tablets a viable and portable solution in the absence of interactive tabletops.
This document provides a 3-lesson plan about water as a natural resource. Lesson 1 introduces students to the project and facts about water. Students watch videos on water usage and discuss questions. They read and discuss 20 facts about water. Lesson 2 focuses on the water cycle. Students watch animations and answer questions about processes. They play an online quiz and complete a labeling activity about the water cycle. Lesson 3 raises awareness about water scarcity. Students read facts on scarcity and play a true/false game. They complete a reading comprehension activity about Earth's water distribution. The final video and poster presentations wrap up the project.
This document provides information about Power Electronical, a company that offers on-site HV/EHV equipment testing services. It discusses Power Electronical's business divisions, team experience, client partnerships, and the types of diagnostic testing it performs on transformers, generators, motors, cables, CTs/PTs, and other equipment. It also lists the company's achievements in commissioning and testing various substations, certifications, annual maintenance clients, EPC partners, and reasons for choosing Power Electronical.
This document asks readers to consider their image of libraries and what defines them, suggesting libraries are more than just books and vary in type from school libraries to university, business, and law libraries, as well as online only libraries. Readers are prompted to brainstorm and create an illustration of their image of a library, including what people, things, computers, and books they would include.
The document discusses the core components of an Android application - activities, services, content providers, and broadcast receivers. It describes how these components work together and how intents are used to start components. It also covers the app manifest file which defines permissions, components, and intent filters of an app. The manifest declares what the app needs to function like permissions for certain hardware or API libraries. Resources are also discussed, which include images, layout files, and string values that apps use.
Cuauhtémoc Ortiz C. has over 15 years of experience as a senior electrical test engineer performing routine and specialized electrical testing on power transformers up to 420 MVA and 400 kV according to various industry standards. He has held leadership roles commissioning and managing medium and large power test laboratories. His responsibilities include performing electrical testing, reviewing specifications, preparing test plans, managing personnel, ensuring quality, and providing training. He also supports distribution testing, troubleshooting electrical systems, and additional specialized testing techniques.
This document provides an overview and forecast of the LED market in India. It discusses the growth of the lighting industry in India from 2005 to 2011, with compound annual growth rates ranging from 9-17%. CFL usage grew rapidly from 20 million pieces in 2002 to an estimated 400 million pieces in 2011. The document also identifies barriers to LED adoption in India such as high costs, lack of standards and testing facilities, and an absence of manufacturing incentives. It provides recommendations to address these barriers including establishing a central institutional mechanism, aggregating demand to lower costs, mandating domestic manufacturing, and setting up a neutral testing facility. The focus areas discussed for LED adoption are downlights, street lights, and self-ballasted LED lamps. Draft
This product is an air-curing dry lubricant anti-friction coating composed of solid lubricants, solvents, and a binder. It provides avoidance of stick-slip, high ageing resistance, and is suitable for metal/metal combinations with slow to medium fast movements and high loads. The coating is applied by spraying or brushing in a dry film thickness of 5 to 20μm and cures after 5 minutes at 23°C. It has a usable life of 24 months when stored at or below 20°C.
This document summarizes the Medalist i3070 08.30p software release from Agilent Technologies. It includes an agenda that covers the software milestone, what's new in version 08.30p, and how to get the updated software. An appendix lists over 200 change requests that have been addressed in this release.
Target Scientific Laboratory Pvt. Ltd is an ISO 17025:2005 accredited laboratory from PNAC, Our lab ID is 109.
Furthermore, we're one and only laboratory in Pakistan which has accreditation of ISO 17025 in transformer oil testing and as well as in private sector only we are OGRA licensed laboratory in PAKISTAN.
This document contains the resume of Nizamuddin Sheik, who has over 8 years of experience working with analytical instrumentation. It lists his educational background, including a diploma in electronics and communication engineering and ITI in instrument mechanics. It also outlines his extensive training experience with various AMETEK analyzer models. The resume describes his work history maintaining and servicing analytical instruments for oil, gas, and industrial companies in Qatar, India, and the UAE. It provides details of his responsibilities in installation, commissioning, troubleshooting and maintenance of various gas detection, moisture, and oxygen analyzers.
1) The document is a product specification sheet for an inductor from Hongxin Technology Co. Ltd. It includes specifications for electrical characteristics, mechanical dimensions, test data, reliability test conditions, and material composition.
2) Test reports and graphs show the inductor meets specifications for inductance, DCR, saturation current, temperature variation, frequency variation, and current variation. It also passes reliability tests.
3) The document provides detailed information on the inductor's specifications, test methods, test results, material composition, and certification documents to verify product quality and reliability.
A Review Comprehension: Guideline for Testing of HV, EHV and UHV Substation E...IRJET Journal
This document provides an overview of testing procedures for key equipment in high voltage, extra high voltage, and ultra high voltage substations according to Indian and international standards. It discusses type, routine, and acceptance tests for various equipment including:
1. Lightning arresters, isolators, circuit breakers, current transformers, and potential transformers. Common tests include insulation withstand tests, temperature rise tests, short circuit withstand tests, and measurement of electrical characteristics.
2. The purpose of the tests is to ensure equipment reliability and safety by checking performance, specifications and conformity to standards before installation.
3. Guidelines are provided on planning and preparation and addressing issues during commissioning to allow safe start-up of new electrical systems
This document defines the internal laboratory scope of the Heat Treat Laboratory. It outlines the technical capabilities including the measurement ranges and equipment used to measure crystal grain size, microstructure, surface and core hardness, case depth, and indirect surface hardness. It also describes the quality procedures, including compliance with ASTM standards, annual calibrations, daily master verifications, and training of personnel.
Glorious Electronics has large manufacturing infrastructure based at Faridabad. Glorious is capable enough of undertaking third party manufacturing/private labeling for any large corporation. We have fully automated plant with research & development facilities.
Our IST testing machine we purchased will be installed and running in the next couple of weeks. I’ve attached the relevant section from the IPC test methods manual. It is a little dry but does explain reasonably well what IST testing is about, particularly the first section titled “Scope”.
Study on Droplet-based Liquid Cooling of an Hotspot using Digital Microfluidicsbgshreyas85
Thermal management in present day integrated circuits (ICs) has become extremely challenging to deal with, as more number of transistors is packed into smaller die sizes. Conventional macro-scale and bulky cooling mechanisms like heat sinks, fans and heat pipes are unsuitable to handle the non-uniform spatial power distributions (hotspots) found on these small, yet, powerful ICs. To tackle this thermal management issue, we present a digital microfluidics (DMF) microscale liquid cooling system working on the principle of electrowetting on dielectric (EWOD). EWOD is an efficient and low power consuming actuation technique to pump liquids at microscale. In EWOD DMF, fluids are handled in droplet-wise by external electric field, thus, mechanical pumps and valves are not necessary to control the liquid motion.
In this demonstration, the EWOD system comprises a parallel arrangement of thin film Indium Tin Oxide (ITO) coated glass devices separated by spacer gap of 150µm. The bottom device is patterned with a 3D arrangement of ITO heaters/RTDs (Resistance temperature detectors) with EWOD electrodes separated by a passivation layer. By using the heaters and RTDs in a 600µm x 600µm area on the bottom device, we emulate hotspots found on ICs by controlling and sensing the temperature. A reservoir holds a pool of de-ionized water from which a small liquid drop of 800nL is dispensed and delivered to the hotspot at high velocities. When multiple drops are passed over the hotspot, considerable cooling will occur.
With the help of the ITO thin film RTDs and a pre-calibrated temperature coefficient of resistance data, the temperature of the hotspot before and after cooling is recorded for different dwell times of water droplets on the hotspot and heat fluxes. A plot between the temperature and the droplet traveling time for various speeds and heat flux is established. By using a high speed camera and synchronizing it with the RTD measurement, the meniscus of the droplet on the hotspot is examined for phase change at various heat fluxes to identify and study its effects on the hotspot temperature. This study is crucial to distinguish single phase and phase change of the coolant in estimating the performance of the hotspot cooling. This demonstration provides a foundation to a novel microfluidic hotspot cooling system in current generation ICs and can be extended to 3D ICs.
This technical data sheet provides physical, mechanical, thermal, electrical, and additional properties of GEHR PEEK-mod. Key information includes:
1. Physical properties include a specific gravity of 1.48 g/cm3, water absorption of 0.06%, and maximum service temperatures of 260°C and -40°C.
2. Mechanical properties include a tensile strength at yield of 141 MPa, tensile strength at break of 118 MPa, and impact strength of 27.5 kJ/m2.
3. Thermal properties include a heat deflection temperature of 293°C and 277°C, a coefficient of linear thermal expansion of 0.22 K-1*
OCSTraining - API 577 Welding Inspection and MetallurgyMuanisa Waras
This document provides information about an upcoming training course on API 577 Welding Inspection and Metallurgy. The 2-day course will cover topics including welding processes, procedure specifications, inspector tasks, discontinuities and defects, non-destructive testing, metallurgy, and case studies. The objectives are to provide guidance to API inspectors on welding inspection processes and documentation requirements. The course will use presentations, demonstrations and mock exams to help attendees gain skills for welding inspection and qualify for API certification.
KEMET has been manufacturing conductive polymer based surface mount tantalum capacitors (KO-CAP[registered trademark]) since 1999. Capabilities have been successfully introduced into the market, such as low equivalent series resistance (ESR) series for decoupling, high voltage series for DC-DC converters and power management, and high-energy series for enterprise solid state drives (SSD) applications.
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Transformer Oil Testing services
1. POWER ELECTRONICAL
Oil Testing Experts
http://www.powerelectronical.com/
Transformer Oil Testing
Oil suffers from electrical and mechanical stresses while a transformer is in operation. In addition there are contaminations caused due
to chemical interactions with windings and other solid insulations, catalyzed by high operating temperature. As a result the original
chemical properties of Transformer Oil changes gradually, rendering it ineffective for its intended purpose after many years. Hence this
oil has to be periodically tested to ascertain its basic electrical properties, and make sure it is suitable for further use or necessary
actions like filtration/regeneration has to be done.
Power Electronical
Transformer Oil Testing Laboratory (TOTL)
PE‐TOTL is India’s leading private laboratory for Transformer Oil testing. It is
located in the same premises as the HQ office, and this allows for constant
supervision and monitoring of test methods and testing procedures, and
constant upgradation to higher standards of testing. The NABL accreditation
for this test laboratory is the icing on the cake, and allows us to certify our
test results with authority that very few laboratories across India can match.
The testing is usually done as per IEC 17025:2000, but we have the capability
to test as per the customer’s requirements for any other local standard also.
Add the low turnaround time for sample testing, the precise and accurate
results, and the record maintenance; the high demand from our customers is
making us almost approach the end of spare capacity. The plan hence is to
replicate the high standards of Oil testing and set up a couple more of
regional laboratories across India and Mid‐East.
Tests profile
Sr. Tests IEC ASTM IS
1 Color & Appearance ISO 2049 D‐1524 IS 335
2 Breakdown Voltage IEC 60156 D‐877 IS 6792
3 Water Content IEC 60814 D‐1533 B IS 13567
4 Acidity (Neutralization Value) IEC 62021 D‐974 IS 1448 [P‐2]
5 Dielectric Dissipation Factor IS 6262
IEC 60247 D‐924
6 Resistivity IS 6103
7 Sediments & Sludge IEC 61125 D‐1524 IS 1866
8 Interfacial Tension ISO 6295 D‐971 IS 6104
9 Flash Point IEC 2719 D‐92 IS 1448
10 Pour Point ISO 3016 D‐97 IS 1448
11 Density IEC 60814 D‐1298 IS 1448
12 Kinematic Viscosity ISO 3104 D‐445 IS 1448 [P‐25]
13 Dissolved Gas Analysis NA D‐3612‐A IS 9434
15 Furan Analysis IEC 61198 D‐5837 ‐‐‐
D-24, Classic Indl Premises,
Timely & Correct Diagnosis saves efforts & money MIDC Ambad, Nasik – 422010, MH, India.
Tel : +91 253 6602387
Trust the experts!! Fax : +91 253 6602388
Email : contact@powerelectronical.com
2. POWER ELECTRONICAL
Oil Testing Experts
http://www.powerelectronical.com/
NABL Accreditation
Power Electronical’s TOTL has been certified for Transformer Oil
testing by NABL (T‐1424). It is only one of the few private labs in
India to be accorded this status. The NABL accreditation allows our
customers to be able to compare and use the test readings to a
scale comparable with National test laboratories. It is also a proof
of our unswerving commitment to highest levels of quality
standards for Oil testing. Under NABL, the following parameters are
under periodic scrutiny, thus allowing our customers to work
peacefully while we work for them 24X7
‐ our facilities
‐ test procedurals, and,
‐ record maintenance
ISO 9001 : 2000 Certification
We believe International systems accreditation contributes to our
better working and better quality of service for our customers.
Power Electronical’s TOTAL has been certified ISO 9001:2000
compliant for its procedures and Quality management systems
Transformer Oil testing by TUV SUD.
Certificate Regn No – 99 100 03494 valid until 23 Jan 2011
These certificates only prove our systems, calibration and testing
standards. But, it is our response system and the services we
render to our customers, that allows us to scale higher echelons of
reputation.
D-24, Classic Indl Premises,
Timely & Correct Diagnosis saves efforts & money MIDC Ambad, Nasik – 422010, MH, India.
Tel : +91 253 6602387
Trust the experts!! Fax : +91 253 6602388
Email : contact@powerelectronical.com
3. POWER ELECTRONICAL
Oil Testing Experts
http://www.powerelectronical.com/
Condition Monitoring Services
Testing is only half the work done….without correct and accurate analysis, it serves no worthwhile purpose. Our engineers and
laboratory staff are well equipped with knowledge and experience to be able to analyze the results and predict any kind of rapid
degradation of Oil parameters, or advise residual life expectancy or fault interpretation. We follow it up with site visit and testing of
other parameters of your equipment, to confirm the assessment, and help the customer take preventive and corrective measures
well within time. A maintenance contract signed with us for all your critical equipment gives you complete peace of mind, because
we look after them 24X7 thereafter, including scheduled and emergency visits.
Convenience with TOTL association
• Test results provided within 3 working days from sample receipt
• Urgent testing provision at additional 25% charge. Test result provided within 1 working day
• Logistic control and handling may be done by TOTL, on customer’s request
• All tests done under controlled temperature and humidity, to maintain test integrity
• All testing data records maintained for a period of 6 years
• Statistical trending & analysis, on request
• Experienced persons handling test operations, on continual basis since past 5 years
• Single point communication window established for all customers
• Volume discount available to special customers with committed volumes
• Credit limits for special customers, post 6 months of association
Sample Procedure & Costs
• Sampling will be done by our person. Travelling to & fro charges from Nasik will be to customer’s account.
• Customer can issue sampling bottles from us, and do their sampling themselves. To & fro logistics cost of bottles, including
taxes/custom levies will be to customer’s account.
• Sampling bottle may be provided on request. Deposit per bottle is 7500 INR (150US$), on refundable basis.
• Test results will be provided by email. For any paper copy requirement, shipping within India is free, but outside India is to
customer’s account.
Contact PE‐TOTL for world class Transformer Oil Testing services,
exclusively at TOTL@powerelectronical.com
Note – Power Electronical reserves the right to change service specifications for continual improvement. Please order a fresh copy of service contract from
contact@powerelectronical.com, before placing new orders. Jurisdiction limits within territory of Republic of India only.
Our other Products are –
• Automatic Cap & Tan Delta test system 10kV / 12kV • Automatic Oil Resistivity & DF tester
• Manual C&DF test system 12kV • Insulation Testers (10M to 15T, 2% accuracy)
• Auto Oil Breakdown Voltage Tester 80kV / 100kV • High Voltage Breakdown testers (10kV‐50kV)
• Motorised Oil BDV set 0‐100kV • SF6 Gas filled Standard Capacitors (upto 1000kV)
D-24, Classic Indl Premises,
Timely & Correct Diagnosis saves efforts & money MIDC Ambad, Nasik – 422010, MH, India.
Tel : +91 253 6602387
Trust the experts!! Fax : +91 253 6602388
Email : contact@powerelectronical.com