| Title |
Optimized Synthetic Making Test Facilities for Estimating the Making Performance of Circuit Breaker |
| Authors |
서윤택(Suh Yoon-Taek) ; 김맹현(Kim Maeng-Hvun) ; 송원표(Song Won-Pyo) ; 고희석(Koh Hee-Seog) ; 박승재(Park Seung-Jae) |
| Keywords |
합성투입시험 ; L-C 공진회로법 ; 저용량 승압변압기법 High-speed Closing Switch(HCS) ; Initial Transient Making Current(ITMC) |
| 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° ~ 145.1° for testing the circuit breaker rated on up to 50kA and 43.1° ~ 119.6° for more than 50kA. |