380V厂用电系统优化

Optimization of 380 V auxiliary power system

四川广安发电有限责任公司300 MW机组厂用电系统部分低压配电动力中心(PC)、电动机控制中心(MCC)及其电源进线开关配置不合理,在机组厂用电故障时,对机组及其辅机设备的运行构成安全隐患。分析了一期300 MW机组380 V厂用电系统存在的隐患及危害,提出了优化方案,确保了机组厂用电的安全供电。

In 380 V auxiliary power system of the 300 MW unit of Sichuan Guang′an Power Generation Company Limited project phase I,the configuration of some low voltage distribution equipments,such as PC,MCC and power inlet switches,was not rational,which formed hidden safety danger for the operation of the unit and its auxiliary equipments when a fault of the auxiliary power occurred.The hidden danger and hazard existing in the 380 V auxiliary power system of the unit were analyzed;the optimization scheme was put forward;and safety power supply of the auxiliary power system of the unit was ensured.