Effect of temperature on the partial discharge initiation voltage of capacitors

The paper describes a novel test arrangement to characterize the temperature dependence of partial discharge (PD) inception voltage in capacitors. The test arrangement consist of a temperature chamber, HV supply and PD detection circuit. The corona free operation voltage is 0 to 3.8 kV, temperature...

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Bibliographic Details
Published in:IEEE transactions on dielectrics and electrical insulation 1995-06, Vol.2 (3), p.499-502
Main Authors: Karady, G.G., Roy, R.R., Domitz, S.
Format: Article
Language:English
Subjects:
Applied sciences
Capacitors
Circuit testing
Corona
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
Partial discharge measurement
Partial discharges
Semiconductor device measurement
Temperature dependence
Temperature distribution
Temperature measurement
Voltage
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Summary:The paper describes a novel test arrangement to characterize the temperature dependence of partial discharge (PD) inception voltage in capacitors. The test arrangement consist of a temperature chamber, HV supply and PD detection circuit. The corona free operation voltage is 0 to 3.8 kV, temperature range is -50 to 200/spl deg/C. Different type of capacitor PD inception voltage were measured at different temperatures. It was found that most commercial capacitor PD was lower than the rated voltage and increased with the temperature. In contrast, the higher quality chip type ceramic capacitor PD was above the rated voltage and decreased with the temperature. The paper concludes that the prediction of capacitor performance requires the measurement of PD at different temperatures.< >
ISSN:1070-9878
1558-4135
DOI:10.1109/94.395411