Following are highlights of the Field Testing projects executed successfully
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The document summarizes field testing projects successfully executed on high voltage equipment for various companies. It lists three projects testing generator transformers, generators, motors, and transformers for THDC India Ltd. and Zuari Agro Chemical Limited. It also tested single phase autotransformers for KPTCL 400kV R/S. A variety of tests were carried out on the HV equipment including insulation resistance, partial discharge, field impedance, surge comparison, tan delta, capacitance, turns ratio, short circuit impedance, and magnetic balance tests.
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The document discusses distribution transformers, including what they are, their main features and parts, testing procedures, maintenance, and protection. Distribution transformers are used to transform power from higher voltages like 11kV to lower voltages like 433V for distribution. Routine tests are carried out on all transformers to check insulation, losses, and ratios according to national standards. Maintenance like checking oil quality and connections helps prevent failures from overloading, water ingress, or faulty parts. Protective devices like Buchholz relays and temperature indicators help detect issues early.
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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, and no-load loss measurement. It also describes type tests such as lightening impulse and short circuit tests. The document emphasizes the importance of regular maintenance like oil testing, insulation checks, and bushing cleaning to prevent transformer failure and ensure reliable power supply.
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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.
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The document describes a high voltage laboratory, including:
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2. The main purposes are testing equipment and conducting research on topics like breakdown strength of materials and high voltage power systems.
3. It classifies high voltage labs as small, medium, or large depending on voltage and space requirements. Large labs can test and research equipment up to 800kV and above and include multiple test halls and outdoor areas.
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Krishnamoorthy provides a summary of his personal and professional details. He has over 2 years of experience as a senior testing and commissioning engineer. He has expertise in electrical maintenance, testing, and commissioning of power systems and has worked on projects in India and other countries. His skills include testing equipment from 415 volts to 400 KV, generating reports, and ensuring quality control.
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This resume summarizes Rama Subramanian's professional experience as a diagnostic engineer specializing in testing power systems up to 765KV. He has over 5 years of experience testing and commissioning a wide range of electrical equipment using various testing kits. Some of the projects he has worked on involve substations in India and Bhutan.
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This document provides an overview of the Central Power Research Institute (CPRI) in India. It describes CPRI's mission, value, and attitude. It also lists CPRI's departments and provides more detail on the Centre for Collaborative and Advanced Research, Diagnostics Cable & Capacitor Division, Dielectric Materials Division, and High Power Laboratories. CPRI functions as the power house of the Indian electrical industry, conducting applied research to assist industry and ensure reliability, economy, and quality in power systems. It employs over 300 engineers and scientists across various departments focused on research, testing, and certification of power equipment.
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The document discusses various types of tests conducted on isolators, bushings, cables, and circuit breakers. Key tests include:
1. Power frequency and impulse voltage withstand tests to check the insulation strength of isolators, bushings, and cables.
2. Partial discharge and tan delta tests to evaluate insulation condition and dielectric losses.
3. Short circuit tests on circuit breakers to check their ability to safely interrupt fault currents under different voltage and current conditions.
4. Other tests include temperature rise, mechanical endurance, and measurement of electrical characteristics.
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93518813-TESTING-MAINTENANCE-PROTECTION-OF-DISTRIBUTION-TRANSFORMERS.ppt
93518813-TESTING-MAINTENANCE-PROTECTION-OF-DISTRIBUTION-TRANSFORMERS.ppt
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Design planning & layout of high voltage laboratory
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Following are highlights of the Field Testing projects executed successfully
- 1. Following are highlights of the Field Testing projects executed successfully. Sl.No. Project Machine/Equipment Tested 1. THDC India Ltd., Tehri HPP & Koteshwar HEP, Uttarakhand. Generator Transformers, Generators 2. Zuari Agro Chemical Limited, Goa HT Motors, Transformers, PTs 3. KPTCL 400kV R/S, Hoody, Bengaluru Single phase AutoTransformers Tests carried out on HV Equipments: 1. Insulation Resistance/ Polarisation Index test 2. Tan delta & Capacitance test at various test voltages up to the maximum of phase voltage 3. Partial Discharge Test up to the phase voltage 4. Field impedance measurement 5. Surge Comparison test/RSO test 6. Pole Drop test 7. Tan delta & Capacitance test on Windings (At variable frequency). 8. Magnetizing current/Excitation Current Measurement at 10kV. 9. Recovery Voltage Measurement 10. Winding resistance Measurement 11. Transformer turns ratio test 12. Sweep Frequency Response Analysis 13. Short Circuit Impedance 14. Magnetic Balance Test.