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Evaluation Of Partial Discharge Measurement Circuits And Associated Calibration Techniques

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4 Author(s)
S J. Huang ; Wuhan High Voltage Research Institute ; S. M. Lowder ; S. H. Sarkinen ; V. L. Chartier

This paper presents an evaluation of the RIV circuits used for the measurement of partial discharges. The results show that the NEMA 107-1964 RIV circuit, as presently used in high voltage laboratories, does not consider the entire calibration problem. The test circuit can produce resonance at a particular frequency, the choke coils can create a resonance shift, and the capacitance from the bottom end of the coupling capacitor to ground is significant. This capacitance, combined with the coupling capacitor and inductance of the conductor, forms a resonant circuit at the measurement frequencies.

Published in:

IEEE Transactions on Power Apparatus and Systems  (Volume:PAS-104 ,  Issue: 2 )