摘要
针对一次偶发的主变差动保护跳闸的事故,结合智能变电站数据中心录波文件,分析了有源电子式电流互感器对快速动作的差动保护带来的影响,通过现场试验和试验室测试验证了有源电子式电流互感器在设计和出厂试验中存在的隐患,并提出了改进措施,以提高有源电子式电流互感器的可靠性。
Aiming at an occasional main transformer differential protection tripping accidents, the paper, in combination with recorded file in smart substation data center, analyzes the impact of active electronic current transformer on differential protection of the fast action; through field test and laboratory testing, it proves that the hidden dangers of active electronic current transformer in design and factory test and proposes improvements so as to improve the reliability of the active electronic current transformer.
出处
《浙江电力》
2013年第1期24-26,共3页
Zhejiang Electric Power
关键词
智能变电站
继电保护
电子式
电流互感器
intelligent substation
relaying protection
electronic
current transformer
