摘要
电力系统是一个庞杂的运行系统,其中直接面向社会使用的最后一个环节是用户供电系统,广大群众的用电可靠性和用电质量就建立在这个系统是否完善的基础上,确保系统安全、优质、可靠和经济地供电,是我国设计用户供电系统、输送电能过程的基本任务。本研究针对380V低压供电系统中的"越级跳闸"现象进行了分析,总结出了在设计院大量使用"经验数据"是越级跳闸现象频繁出现的一个主要原因,进而通过标准计算的方法 ,对低压侧保护定值的整定方法进行了研究和设计。
The power system is a complex system, which directly faces the last link of social use is the user power supply system, the electricity reliability and power quality is based on whether or not the system is perfect, ensuring system safety, high quality, reliable and economic power. It is the basic task of power supply system and power transmission process. In this study, 380V low voltage power supply system of ＂tripping＂ phenomenon is analyzed, summed up in the design institute, extensive use of ＂data＂ is one of the main reasons of frequent tripping phenomenon. Then through the standard calculation method, the setting of the low voltage side of the protection setting method is studied and designed.
出处
《自动化技术与应用》
2017年第8期81-84,116,共5页
Techniques of Automation and Applications
基金
2016年度陕西国防工业职业技术学院科研立项(编号Gfy16-10)
关键词
越级跳闸
低压系统
保护整定
override trips
low-voltage system
setting protection
