摘要
一、概述根据研制煤矿井下防爆电气设备新产品的安排,1975年8月由上海电器厂、合肥开关厂、煤炭科学研究院上海研究所等单位组成了千伏级矿用馈电开关统一设计组,于1979年研制出交流50Hz、电压至1140V。
It is suitable for use in mines with explosive gas and coal dust. The switch can automatically cut off the circuit according to the requirements when overload or short-circuit occurs. When used with earth-fault relay, it can provide leakage protection to the line. Detailed description of its technical features, structures, principles of electric circuit, its use and maintenance is also given.
出处
《煤炭科学技术》
CAS
1984年第5期17-22,61,共7页
Coal Science and Technology
