摘要
低压直流断路器用于发、变电工程和工矿企业的直流网路,能可靠地切断直流电源,具有灭 弧性能好、可靠性高、运行维护方便等优点,能保证直流系统安全运行。
To apply low voltage DC circuit breakers in DC feedback circuit in generating and transforming & distributing projects and mines & industry enterprises can switch off DC current reliably,with good performance in arc extinguishing,high in reliability and convenient in operation & maintenance etc advantages,to assure the safety operations of DC system.
关键词
低压直流断路器
过载保护
短路保护
灭弧室
DC circuit breaker
three section graded protection
A/s characteristic selectable
