煤矿高压变电所二次保护故障排查技术

Fault detection technology of secondary protection in coal mine high voltage substation

通过对煤矿高压变电站内二次保护装置运行原理、多级架构组织进行详细阐述分析,说明供电网络对于信息采集传输的优势与弊端,并对故障诊断类型进行划分定位、继电保护装备的在线状态监测、二次回路实时监测等技术进行分析,最后通过故障定位排查技术快速查找故障点,进行信息反馈,及时解决隐患,实现煤矿供电网络运行的安全可靠。

The advantages and disadvantages of the power supply network for information collection and transmission are explained through the detailed analysis of the operation principle and multi-level architecture of the secondary protection device in the high-voltage substation of the coal mine.The fault diagnosis types are divided and positioned,and the online state monitoring of the relay protection equipment and the real-time monitoring of the secondary circuit are analyzed.Finally,the fault points are quickly found through the fault location and investigation technology,and the information feedback is carried out to solve the hidden dangers in time,so as to realize the safe and reliable operation of the power supply network in the coal mine.