초고압전력용차단기에 대한 다목적합성실험회의에 관한 연구

A Study on the Multipurpose Three Phase Synthetic Testing Circuit for A.C. E.H.V. Circuit Breakers

Common enclosure type SF6 circuit breakers have been developed in many countries for their compact design and economical merits, but their performance testing method is one of the difficult problems because of the limitation of testing capacity. This paper studies a three phase synthetic testing circuit which consists of 4-unit circuits based on the current injection method. This new synthetic testing circuit can be used in both ways of three phase testing up to 242kV rating and single phase testing up to 800kV rating.