矿井供电过电压危害及其防治技术

摘要

Power system that appears to work under certain conditions, the voltage exceeds the voltage rise is called abnormal over-voltage, over-voltage which is a form of electromagnetic disturbances. Electrical equipment insulation withstand the operating voltage of the long-term, but also must be able to withstand a certain level of over-voltage, so as to ensure safe and reliable operation of the power system.%电力系统在特定条件下所出现的超过工作电压的异常电压升高叫作过电压，过电压属于其中的一种电磁扰动现象。电工设备的绝缘长期耐受着工作电压，同时还必须能够承受一定幅度的过电压，这样才能保证电力系统安全可靠地运行。