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http://dx.doi.org/10.5370/KIEE.2012.61.2.251

A Study on the Partial Discharge Location Method using 2 Sensors  

Kim, Jeong-Tae (대진대 공대 전기공학과)
Kim, Dong-Wook (대진대 공대 전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.61, no.2, 2012 , pp. 251-256 More about this Journal
Abstract
This study deals with the location of partial discharges(PDs) for power cables and GIS using 2 PD sensors and long coaxial signal cables. Throughout the experiments by use of simulated PD pulses and corona discharges in the power cable system, it is found out that the impedance matching between the coaxial signal cable and the measuring equipment should be done for good S/N ratio and the on-site measurement using more than 100m-long coaxial signal cable is possible. In addition, new PD location algorithm with the polarities of PD pulses and the arrival time difference between two pulses was proposed and was proved through the partial discharge experiments for the cable joint defect and artificial void defect.
Keywords
Partial discharge location; Power cable; 2-sensor method; Coaxial signal cable; Pulse polarity;
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  • Reference
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