Results 261 to 270 of about 259,888 (302)

Partial discharge measurements: possibilities and limitations

[1992] Proceedings of the 4th International Conference on Conduction and Breakdown in Solid Dielectrics, 2003
Several aspects of partial discharge (PD) measurement and processing of PD data are discussed. It is pointed out that the ABC equivalent is not a fully valid equivalent of a void in the insulation and should be used with some care. The use of broadband measuring systems gives a gain in sensitivity, but calibration can be a problem when they are used on
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Advances in Measuring Partial Discharge in Insulating Liquids

2019 IEEE 20th International Conference on Dielectric Liquids (ICDL), 2019
The IEC 61294 Technical Report, published in 1993, describes a simple test procedure to measure the PD Inception Voltage (PDIV) in insulating liquids and doesn’t cover any other items related to the PD patterns and their evolution at higher voltages. This simplified approach should be considered superseded when taking into account the several studies ...
Calcara, L., Pompili, M., Sangiovanni, S., Pfeiffer, B., Renaudin, T., Welfonder, T.   +5 more
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Partial-discharge measurements for insulation quality

Power Engineering Journal, 1992
There is one common factor that, in different forms, runs throughout the entire electrical and electronics industries. That factor is the requirement for insulation that gives the necessary mechanical, thermal and electrical properties needed for particular applications.
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Equipment for the Energy Measurement of Partial Discharges

IEEE Transactions on Electrical Insulation, 1983
The energy dissipated by partial discharges (PD) can be estimated from the U i Q i . It has been described a particular device able to deal with such a calculation using a correlator unit. With gas chromatography analysis a satisfactory correlation was available between the degradation products of liquid (oil) or solid (pressboard) insulation and the ...
G. Garcia, B. Fallou
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Practical Partial Discharge Measurement on Electrical Equipment

2023
Practical Partial Discharge Measurement on Electrical Equipment Accessible reference dealing with (partial discharge) PD measurement in all types of high voltage equipment using modern digital PD detectors Practical Partial Discharge Measurement on Electrical Equipment is a timely update in the field of partial discharges (PD), covering both holistic ...
Stone G. C., Cavallini A., Behrmann G., Serafino C. A.   +3 more
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Measuring the endurance of films in partial discharges

IEEE Transactions on Electrical Insulation, 1993
A new test assembly for measuring the endurance of polymeric and ceramic films under the action of partial discharges (PDs) is presented. If experiments are performed under controlled ambient conditions (i.e., relative humidity), the test procedure gives times to breakdown which show low scatter. The effects of different test conditions on the times to
R. Bozzo, L. Centurioni, GUASTAVINO, FRANCESCO   +2 more
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A minicomputer-based partial discharge measurement system

1978 IEEE International Conference on Electrical Insulation, 1978
In order to make a comprehensive study of partial discharge phenomena, an advanced measurement system has been developed, which utilizes a minicomputer having functions such as memory, data processing and judgement. The system is so designed to process positive and negative pulse trains appearing in phase of a.c.
Toshikatsu Tanaka, Tatsuki Okamoto
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Partial discharges and their measurement

2004
The study of partial discharges is not an academic pursuit. It is driven by a very practical desire, a desire to understand a phenomenon which can be utilised to infer the level of integrity within the insulation systems of high voltage plant and which, in itself, constitutes a serious stress degradation mechanism. The role of partial discharge studies
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Correlation analysis of partial discharge measurement results

2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2017
In the paper correlation analysis of partial discharge (PD) measurement results achieved using conventional electrical method and ultra-high frequency (UHF) method is presented. All measurements are proceeded under laboratory conditions on various PD model sources immersed in an insulation oil.
Michal Kunicki, Lukasz Nagi
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Interpretation of digital partial discharge measurements

IEE Colloquium on PD Display Systems and Analytical Software, 1996
The presence of partial discharges is one of the most prominent indicators of defects and ongoing degradation processes in electrical insulation systems. On-line partial discharge measurements provide information about progressing degradation under operational stress or defects which are only excited by the operational stress (e.g.
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