变电站切除并联电抗器过电压故障分析

Analysis on an Over-voltage Fault of Switching off Shunt Reactor in a Substation

以一起35 kV真空断路器切除并联电抗器操作过电压故障为例,根据故障前后设备运行情况、故障录波实测数据和设备损坏检查情况,分析其产生原因和过电压机理,并结合各项措施提出优化设计配置方案、优化操作运行方式和空载母线系统过电压治理等防治建议。

Taking an over-voltage fault of a 35 kV vacuum breaker excised shunt reactor operation as example, analysis is performed on the causes and over-voltage mechanism of the fault based on the operation of the equipment before and after the fault, the measured data of fault recording and the inspection of equipment damage, and the prevention and control suggestions are put forward in terms of optimized design and configuration scheme, optimized operation and operation mode, and over-voltage control of no-load bus system, combined with various measures, which is of positive significance for over-voltage control of shunt reactor operation.