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http://dx.doi.org/10.4313/JKEM.2005.18.10.902

Characteristics of Insulation Degradation in Epoxy Mold Type BCT  

Song, Jae-Joo (순천청암대학 IT교육과)
Lee, Jung-Choi (순천청암대학 IT교육과)
Lim, Sung-Hun (전북대학교 공업기술연구센터)
Ko, Seok-Cheol ((재)전남테크노파크 전남전략산업기획단)
Han, Byung-Sung (전북대학교 전자정보공학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.18, no.10, 2005 , pp. 902-908 More about this Journal
Abstract
Various stresses (such as electrical stress, mechanical stress, environmental and electrochemical stress, and defects of structure) result in insulation degradation of epoxy mold type insulators. Since the insulation degradation of BCT(Bushing Current Transformer) and bushing proceeds during fabrication process or operation time due to these causes, various methods to reduce the degradation in their insulation ability have been suggested. In this paper, we investigated surface temperature increment of these insulators due to PD(partial discharge). After the voltage applied into the insulator to generate the artificial PD, the surface temperature of the insulator was measured with non-contact thermometer using infrared rays. It was confirmed through the analysis based on PD experiments that the procession in the insulation degradation of the insulator could be estimated through the measurement of the surface temperature in the insulator.
Keywords
Epoxy mold type Insulator; BCT(hushing current transformer); PD(partial discharge); Insulation degradation;
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