摘要
设计一个模拟电网,在实验室将该模拟电网、矿用隔爆馈电开关和矿用检漏继电器按一定的结线方式连接,构成煤矿漏电保护模拟系统,该模拟漏电保护系统可反映供电系统的绝缘水平(电阻),同时可模拟煤矿在单项漏电、两项漏电、三项漏电、有人触电等不同状态下的漏电保护,并且测出漏电保护动作电流和系统的绝缘水平(电阻),揭示煤矿漏电保护的工作原理。
In laboratory,a simulation grid was design,and connected to mining flame-proof feeding switch and relay mine leak detection in a certain way,and form the mine electric leakage protection simulation system.The electric leakagc protcction system can reflect the insulation level of the power supply system （resistance）,at the same time can simulate coal mine in the three single leakage,two leakage,It can also simulate the case that someone get an electric shock and provide leakage protection of different conditions,such as leakage protection,and leakage protection action current and the insulation level of the system can be measured as well.It reveals the working principle of leakage protection of coal mine,and can help the student to study the leakage protection knowledge.
出处
《实验室研究与探索》
CAS
北大核心
2014年第5期77-80,共4页
Research and Exploration In Laboratory
关键词
煤矿
漏电保护
模拟电网设计
实验室
coal mine
leakage protection
simulation grid design
laboratory
