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Malfunction Characteristics of Earth Leakage Circuit Breakers against Electrical Surges  

Song Jae-Yong (한국해양대학교 전기전자공학부)
Han Joo-Sup (한국해양대학교 전기전자공학부)
Park Dae-Won (한국해양대학교 전기전자공학부)
Seo Hwang-Dong (한국해양대학교 전기전자공학부)
Kil Gyung-Suk (한국해양대학교 전기전자공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.9, no.3, 2005 , pp. 570-575 More about this Journal
Abstract
Malfunction by electrical surges is a serious problem on earth leakage current breakers(ELBs) used in a low voltage AC power system. In this paper, we tested ELBs according to IEC 61009-1 and KS C 4613 to analyze surge influence on ELB's malfunction. The test by application of surge voltage is specified both standards, but the test by application of surge current is specified only in IEC 61009-1. The experimental results showed that the ELBs used in this test are robust to surge voltage application, but the malfunction occurred to surge current application. Surge current is more frequent than surge voltage in actual situation. Therefore, ELBs should be tested by the surge current, and the domestic standard, KS C 4613, should includes a test procedure by the surge current application.
Keywords
Malfunction; Electrical Surges; Earth Leakage Current Breakers(ELBs); IEC 61009-1; KS C 4613;
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  • Reference
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