发电机断路器在中型水电站中的应用

Application of Generator Circuit Breakers in Middle-scale Hydroelectric Power Stations

中小容量的发电机断路器在国内水电站中的应用研究目前尚属起步阶段 ,是新的电气设计课题 .以西霞院水电站设计为例 ,对中型水电站发电机出口装设发电机断路器而非普通配电型断路器的必要性进行了探讨 ,提出国产设备应尽快实现小型化、成套化的发展设想 ,以增强与国外先进设备的竞争能力 ,解决中型水电站地下式厂房电气设备布置空间紧张的突出矛盾 。

Now in domestic hydroelectric power station,the study on application of small- or middle-capacity GCB is still in it's beginning stage. It is a new subject of electrical design for us. This paper takes the main single line design of Xixiayuan hydroelectric power station as an example,to discuss the necessity that GCB,but not the conventional distribution-type breaker should be used for the outlet of generator. The author gives some ideas therein that the domestic equipment should be realized smallization and complete-settization as soon as possible to compete with the foreign equipment,finally and effectively,to solve the outstanding contradiction of electrical equipment arrangement in narrow space of underground-type powerhouse of middle-scale hydroelectric power station, so that the GCB can be popularized and applied to the domestic middle-scale hydroelectric power station gradually.