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http://dx.doi.org/10.4313/JKEM.2009.22.9.786

A Study on PD Detection Methods for Cast-resin Dry-type Transformers  

Park, Chan-Yong (한국해양대학교 전기전자공학부)
Park, Dae-Won (한국해양대학교 전기전자공학부)
Choi, Jae-Sung (한국해양대학교 전기전자공학부)
Kil, Gyung-Suk (한국해양대학교 전기전자공학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.22, no.9, 2009 , pp. 786-791 More about this Journal
Abstract
Transformer failures are mostly due to partial discharges (PDs) caused by the deteriorated insulation. It is, therefore, important to monitor PD occurrence in insulation system and prevent their deterioration. The presented paper deals with a PD detection method by a capacitive probe, which easily apply to cast - resin dry - type transformers. The PD detection system consists of a capacitive probe and a low noise amplifier having the frequency bandwidth of 500 $Hz{\sim}30$ MHz. In the experimental set-up, sensitivity of the system is 7.16 mV/pC.
Keywords
Capacitive probe; Partial discharge; Cast-resin dry-type transformer; Low noise amplifier;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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