大容量发电机出口断路器的选择

Selection of outlet circuit breakers for high capacity generators

近年来,由于断路器制造技术的发展,以及发变单元接线运行灵活操作的需要,越来越多的大容量发电机装设了出口断路器。介绍了适合我国国情的单元接线大容量发电机出口断路器选择的主要原则。通过一个实例,说明了在选型过程中如何根据高压系统中发电机系统的参数来确定发电机出口断路器的主要性能指标。

In recent years due to the development of circuit breaker manufacturing technology, as well as the demand for the flexible wiring between the transformer and the generator, more and more generators have installed outlet circuit breakers, With consideration of the actual situation of China, the major principles in selecting the outlet circuit breakers for high capacity generators are recommended. The method for determining the main performance indices of the generator circuit breakers according to the generator system parameters of the high voltage system in the process of type selection is illuminated through an example.