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Optimized Synthetic Making Test Facilities for Estimating the Making Performance of Circuit Breaker  

Suh Yoon-Taek (한국전기연구원 시험평가부)
Kim Maeng-Hvun (한국전기연구원 시험평가부)
Song Won-Pyo ((주)효성)
Koh Hee-Seog (경남대학교 전기전자공학부)
Park Seung-Jae (한국전기연구원 시험평가부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers A / v.54, no.6, 2005 , pp. 284-292 More about this Journal
Abstract
Because all of the short-circuit testing laboratories have the limitation of test facilities, the synthetic making test methods have been used to estimate the short-circuit making performance of the ultra high-voltage circuit breaker as the alternative to direct test methods. So, KERI(Korea Eelctrotechnology Research institute) has completed the construction of the synthetic making test facilities using the low capacity step-up transformer method which fulfill the requirements specified in newly revised IEC 62271-100 Edition 1.1(2003) and have the testing capability up to 550kV, 63kA full-pole circuit breaker. The test facilities using the low capacity step-up transformer method presented in this paper are made up of the unit equipments such as HCS(High-speed Closing Switch), ITMC(Initial Transient Making Current) circuit and UP TR(low capacity step-up transformer) and have the operating range of 17.6$^{\circ}$ $\~$ 145.1$^{\circ}$ for testing the circuit breaker rated on up to 50kA and 43.1$^{\circ}$ $\~$ 119.6$^{\circ}$ for more than 50kA.
Keywords
High-speed Closing Switch(HCS); Initial Transient Making Current(ITMC);
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  • Reference
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