摘要
简要讨论了矿井低压电网实行“快速断电安全技术”的重要意义，分析了漏电故障、短路故障、关断技术等几个关键问题，介绍了具有快速断电功能的煤电钻变压器综合保护装置的原理和试验情况。
This paper describes the necessity of adopting a safety technique for rapid interruption of faults in a low voltage underground power supply system.It studies the method for rapid sampling of electrical faults such as earth leakage or short-circuit,and the key technique for a power solid-state breaker.The article introduces Type KZB2.5/660 Mining Flameproof Transformer Assembly of An Electrical Coal Drill with An Ultra-High-Speed Interrupting Fault Protection,which can be turned off within 3.5ms as an electrical fault takes place.
出处
《中国煤炭》
1995年第2期25-28,共4页
China Coal
