核电站电动机控制中心老化机理分析

Analysis on Aging Mechanisms for Motor Control Centers of Nuclear Power Plant

分析了核电站电动机控制中心(MCC)的老化机理。对组成MCC的主要部件——塑壳断路器、磁接触器/起动器、热过载继电器、其他继电器、控制变压器、接线盒、控制线缆、熔丝座、金属外壳和开关分别进行了分析。分析结果有助于为设备的维护、使用和保存实现有效的老化管理。

The aging mechanism for motor control center(MCC) of nuclear plant was analysed.The primary parts——molded case circuit breaker,magnetic contactor/starter,thermal overload relay,miscellanious relay,control relay,terminal block,control wiring,fuse holder,metal housing and switch,which compose MCC,were analysed respectively.The analysis result can help to realizing effective aging management for maintenance,application and conservation of equipment.