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局放测量新标准IEC 60270的特点及其对局放测量工作的影响
Gaoya dianqi, 2001 局部放电测量的新标准IEC 6 0 2 70 /FDIS[2 0 0 0 ]已于2 0 0 0年 9月公布 ,该标准以IEC 6 0 0 6 0 - 2 [1994]为依据 ,为局放测量构筑了完整的质量保证体系 :它以量值溯源为核心 ,以保证测量结果的准确性、不同仪器和不同测量方法的可比性和一致性 ;它把数字式局放测试仪摆在与模拟式局放测试仪同等重要的地位 ,并为数字式局放测试仪规定了一些附加试验项目。本文讨论新标准的特点及其对今后局放测量工作的影响。
史志侠
doaj
IEEE AccessPartial discharge (PD) is a major cause of insulation aging and failure in high-voltage equipment, such as gas-insulated switchgears and transformers.
Daeryeong Baek +2 more
doaj +1 more source
Gaoya dianqi, 2017 电力电缆出厂试验以及现场离线试验进行局部放电测试时,均采用以皮库（pC）表征的视在放电量来评价其绝缘水平。文中采用内置电容耦合方法进行XLPE电缆局部放电的带电检测,为了使检测结果与出厂试验等离线试验结果能够进行对比,将检测结果以视在放电电荷量形式呈现,需要提出该方法的校准方法。论文采用内置电容耦合法对基于等效电容作为分度电容的带电校准、基于频率响应的带电校准以及基于电缆等效电路仿真的带电校准等3种在线校准方法进行研究,并在实验室35 kV电缆上与IEC 60270 ...
王天 +5 more
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Fundamental differences of the PD measurement according to IEC 60270 and in UHF range
2008 International Conference on Condition Monitoring and Diagnosis, 2008PD measurements in the UHF frequency range are an important tool for diagnostic at GIS. A general correlation between the measurement according to IEC standard 60270 and measurements in the UHF range is not possible. By the use of a ldquosensitivity checkrdquo the quality of the UHF measuring system is verified at GIS.
S.M. Hoek +3 more
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Comparative study of IEC 60270 compliant instruments for partial discharge pattern acquisition
2016 Petroleum and Chemical Industry Technical Conference (PCIC), 2016The petrochemical industry considers offline partial discharge (PD) measurement an important quality assessment for new medium voltage motor and generator stator windings. A recent edition of API 541 requires an instrument compliant with IEC 60270 for the measurement of PD on sacrificial stator coils, and proposes 100 pC (pico-Coulombs) for guidance on
Saeed Ul Haq +2 more
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Comparison of Sensitivity Between UHF Method and IEC 60270 for Onsite Calibration in Various GIS
IEEE Transactions on Power Delivery, 2006It is more important to obtain the sensitivity line, which is defined as a correlation between the ultra-high-frequency (UHF) signal (mV) and apparent charge (pC), for onsite calibration regarding partial discharge (PD). Synchronous measurement of the UHF method and IEC 60270 enables us to obtain the sensitivity line and to estimate the apparent charge
T. Hoshino +3 more
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2012 IEEE International Symposium on Electrical Insulation, 2012
Measuring partial discharge according to IEC60270 is a well established and widely accepted method. Unfortunately it presents some limitations especially when it is necessary to monitor the system under load conditions and when the localization of the discharge sources is demanded. To overcome these problems, other techniques have been developed in the
Giussani, R. +2 more
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Measuring partial discharge according to IEC60270 is a well established and widely accepted method. Unfortunately it presents some limitations especially when it is necessary to monitor the system under load conditions and when the localization of the discharge sources is demanded. To overcome these problems, other techniques have been developed in the
Giussani, R. +2 more
openaire +1 more source
What can go wrong during stator coil partial discharge measurements according to IEC 60270?
2014 Petroleum and Chemical Industry Conference Europe, 2014The available literature on partial discharge (PD) analysis suggests that measurements should be performed at higher frequency bandwidth than the conventional IEC 60270 methods, to enhance capability for detection of stator coil defects. In an energized test object, electrical disturbances or noise can strongly influence the observed PD magnitude ...
Saeed Ul Haq +3 more
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Guidelines for PD measurement according to IEC 60270
2019DC systems, Energy conversion ...
Mraz, Petr (author) +3 more
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