Optimization of Three-Phase Unbalanced Circuit of 220 kV Line Breaker at a Power Plant
The outgoing circuit breakers of 220 kV booster station in a power plant are all designed with three-phase split operation,but the three-phase inconsistent protection circuit of some circuit breakers is not dual configuration,which may cause the failure of time relay and intermediate relay or human error collision leading to circuit breaker trip in operation.Therefore,according to the actual situation of the 220 kV line in the power plant,the three-phase inconsistent circuit of the circuit breaker is optimized,and the effectiveness of the optimized reform measures is verified by comparing and analyzing the three-phase inconsistent situation of the circuit breaker before and after the transformation.At the same time,the experience of optimizing and reforming the three-phase inconsistent circuit of circuit breaker is summarized,which provides a reference for solving similar problems.
万方数据
维普
