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中国矿业大学和兖州矿业(集团)有限责任公司根据矿井电网的实际工作环境。研究了干扰源及干扰信号特征,研究出集微机保护、测量、控制与通讯一体化的防爆开关微机保护测控系统。①实现短路、过流、接地、监视线、过压和欠压等保护功能。装置过流保护具备热积累和散热记忆功能。接地保护适用于系统中性点不接地、经消弧线圈接地和经电阻接地等多种运行方式;②实现电压量、电流量有功功率和有功电度测量累计与记忆等功能在完成保护功能的同时可实现故障数据记忆功能为进
China University of Mining and Yanzhou Mining (Group) Co., Ltd. based on the actual working environment of mine power grid. Studied the characteristics of interference sources and interference signals, and developed an explosion-proof switch microcomputer protection measurement and control system integrating microcomputer protection, measurement, control and communication. ① to achieve short circuit, over current, ground, monitoring lines, overvoltage and undervoltage protection. Overcurrent protection device with thermal accumulation and cooling memory. Grounding protection for the system is not grounded neutral, the arc suppression coil grounding and resistance grounding and other modes of operation; ② to achieve the amount of voltage, current and active power measurement and accumulation of active energy measurement and other functions in the completion of the protection At the same time can realize fault data memory into