... 5/72.5/126/145/252/550KV Main Characteristics1. The breaker, dead dank style, three phases interoperate, automatic relcosing ... automatically, double fractures, short arcing time, long electric life, low operating noise, strong capacity in resisting earthquake.2. Excellent ... less than that of other mechanism. 4. Module designThe breaker is of module design, which simplifies the structure, increases ...