摘要
12 kV跌落式熔断器是配电网系统变压器台区高压侧的主要保护装置,其保护特性直接影响配电网系统的运行可靠性。通过对熔断器实际运行及检测试验进行总结,系统分析熔断器运行特性;通过国网公司标准化设计及通用互换原则,给出增强熔断器运行特性的解决方案;依据配电网保护配合真型试验,给出合理的熔断器与柱上断路器保护配合原则,指导实际运行。
The 12 kV drop-out fuse is the main protection device for the high voltage side of the transformer station area of the distribution system.Its protection characteristics directly affect the operational reliability of the distribution system.Through summarizing the actual operation and detection test problems of the drop-out fuse,it systematically analyzes the operating characteristics of the fuse.Through the standardized design and universal interchange principle of state grid corporation,a solution to increase the operating characteristics of the fuse is given.According to the true type test of power distribution protection coordination,a reasonable protection coordination principle of fuse and pole circuit breaker is given to guide actual operation.
作者
王飞鸣
李冰
伊文龙
赵义松
郎福成
WANG Feiming;LI Bing;YIN Wenlong;ZHAO Yisong;LANG Fucheng(Electric Power Research Institute of State Grid Liaoning Electric Power Co.,Ltd.,Shenyang,Liaoning 110006,China;State Grid High Voltage and Large Current Laboratory,Shenyang,Liaoning 110006,China)
出处
《东北电力技术》
2021年第8期12-15,共4页
Northeast Electric Power Technology
关键词
配电网
跌落式熔断器
运行特性
保护配合
distribution network
drop-out fuse
operating characteristics
protection coordination
