摘要
基于微机保护装置断路器操作回路特性,分析了操作回路的组成及工作原理,得出断路器线圈烧毁的原因及线圈保护器设计的理论依据。以断路器线圈保护为核心,完成线圈保护器的硬件设计及软件实现流程,并进行了相关的可靠性测试分析。测试结果表明,当断路器进行分、合闸操作,其辅助触点动作不到位时,线圈保护器将自动断开断路器线圈及操作回路上保持继电器回路,实现对断路器线圈的保护。
Based on the charactoristic of breaker operation circuit of the computer protection device, analyzes the consist of the operating circuit and its working principle. Take the breaker coil pretection as the core, complete the hardware design and the software implementation process of the coil protector, and carry out the test analysis of the relative reliability. The test result shows that as the circuit breaker operates on and off, and its auxiliary contact is not in place, the coil protector will automatically disconnect the circuit breaker coil and the operation loop to maintain the breaker circuit, so as to realize the protection of the circuit breaker coil.
作者
李建新
LI Jianxin(Ordos Electric Power Bureau, Ordos 017000, China)
出处
《内蒙古电力技术》
2019年第1期64-67,共4页
Inner Mongolia Electric Power
