Abstract Regarding the leakage of hydraulic spring control mechanism of circuit breaker in 220kV gas insulated switchgear equipment of a gas turbine power plant in the past three years, because discovery is not in time, cause operation and overhaul very passive circumstance. Detailed inspection and analysis of the circuit breaker energy storage mechanism and secondary circuit, and finally confirm to install the counter in the energy storage motor circuit, find the abnormal equipment as early as possible, and deal with it in time.
2019, Vol. 20 
