A Cost-Effective Technique for PD Testing of MV Cables Under Combined AC and Damped AC Voltage

A Cost-Effective Technique for PD Testing of MV Cables Under Combined AC and Damped AC Voltage

This letter presents a cost-effective technique for partial-discharge testing of medium-voltage (MV) cables using a combined ac and damped ac (DAC) voltage. The combined ac and DAC voltage is generated by a conventional variable-frequency resonant test system and two high-speed switches. An experime...

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Veröffentlicht in:IEEE transactions on power delivery 2018-08, Vol.33 (4), p.2039-2040
Hauptverfasser: He, Weisheng, Wang, Qinghua, Huang, Chenxi, Li, Hongjie, Liang, Deliang
Format: Artikel
Sprache:eng
Schlagworte:
Cable insulation
Cables
Damped AC voltage
Digital to analog converters
Electric potential
Inductors
MV power cables
partial discharge
Partial discharges
Power cables
Resonant frequency
Switches
Testing
variable-frequency resonant test
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Beschreibung
Zusammenfassung:This letter presents a cost-effective technique for partial-discharge testing of medium-voltage (MV) cables using a combined ac and damped ac (DAC) voltage. The combined ac and DAC voltage is generated by a conventional variable-frequency resonant test system and two high-speed switches. An experimental study and on-site test are performed to validate the proposed technique.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2016.2603446