摘要
目前的矿井及选煤厂设计规范中尚未对660 V断路器短路分断能力提出明确要求,较普遍的做法是宁愿取大,不愿取小,这样作常常造成不必要的浪费。作为供电支路上使用的断路器,只要满足额定极限短路分断能力即可。
Currently,the breaking capacity of 660 V circuit breaker has no clear requirements in the design specifications of coal mine or coal preparation plant. the common practice is to take the larger,which would cause unnecessary waste. As the circuit breaker used in the power supply branch,it is only need to meet the rated ultimate short-circuit breaking capacity.
出处
《陕西煤炭》
2016年第6期38-39,59,共3页
Shaanxi Coal
关键词
选煤厂
供电系统
660
V
断路器
coal preparation plant
power supply system
660 V
breaker
