摘要
针对配电网合环调电过程中,合环电流可能导致继电保护动作而造成合环失败的情况,对合环电流和保护定值的配合关系进行分析,得出合环电流导致保护动作的判断条件,通过梳理合环操作过程中减小合环电流的措施,形成一套降低对继电保护影响的自动合环操作流程。
In the process of ring switching,the loop current may lead to relay protection action and cause the ring switching failure.It is necessary to analyze the matching relationship between the loop current and the protective setting value.After judging the condition of the protection action caused by the closing current.By combing the measures to reduce the loop current during the ring switching and form a set of automatic closing operation process to reduce the impact on relay protection.
作者
张树培
王科
张曦源
李明泽
秦超
Zhang Shupei;Wang Ke;Zhang Xiyuan;Li Mingze;Qin Chao(Baoshan Power Supply Bureau,Yunnan Power Grid Corporation,Baoshan 678000,China;Power Science Research Institute,Yunnan Power Grid Corporation,Kunming 650217,China;Chuxiong Power Supply Brureau of Yunnan Power Grid Corporation,Chuxiong,Yunnan 675000,China;Lijiang Power Supply Bureau of Yunnan Power Grid Corporation,Lijiang,Yunnan 674100,China;QujingLuliang Power Supply Bureau of Yunnan Power Grid.,Ltd,Luliang 655600,China)
出处
《云南电力技术》
2020年第3期27-30,34,共5页
Yunnan Electric Power
关键词
合环调电
合环电流
继电保护
ring switching
loop current
relay protection
