摘要
针对河北国华沧东发电有限责任公司的实际运行情况,对断路器非全相保护的异同进行了比较,在当前没有配置发电机非全相保护的情况下,对发生非全相时发电机负序反时限保护的动作行为进行了分析。最后指出,没有装设发电机非全相保护的机组非常有必要装设该保护,在额定工况发生非全相时,可以在较短的时间内切除故障,从而保护发电机的安全。
Aiming at the practical operation situation of Hebei Guohua Cangdong Power Generation Corporation Limited,the similarities and differences of the generator non full-phase protection and the breaker non full-phase protection were compared.When the non full-phase operation state occurred and the generator non full-phase protection was not configured,the behavior of the generator negative sequence inverse-time limit protection was analyzed.It was pointed out finally that there is certain need to configure the generator non full-phase protection for the unit without generator non full-phase protection,which can cut off the failure parts for shorter time when the non full-phase situation under rated condition occurs;and the safety of the generator will be protected.
出处
《华电技术》
CAS
2011年第4期57-58,78,共2页
HUADIAN TECHNOLOGY
关键词
发电机
非全相保护
断路器
运行
generator
non full-phase protection
breaker
operation
