摘要
针对某核电厂380 V交流发电机组自起动试验时跳机的现象,通过原因查找和试验测试分析,判断柴油机跳机的主要原因是:柴油机下游不间断电源负载投运,向系统反馈大量谐波,导致监视柴油机超速的频率继电器误动并向柴油机发出跳机指令,最终导致柴油机跳机。在此基础上,提供了两种解决方案。
According to the 380 V AC generating set tripping phenomenon in the self-starting test of a nuclear power plant, through the analysis of the causes and actual test, it was judged that the trip is mainly due to ： after the uninterruptible power supply load is putted into operation, a large number of harmonic feed back into the system, resulting in that the frequency relay, which is used to monitor the generator over-speed, has malfunctions and sends trip command to the generator, and finally the generator has tripped. On this basis, two solutions were offered.
出处
《低压电器》
2013年第22期61-64,共4页
Low Voltage Apparatus
