Coupled with circuit equations, the opening time of movable contact also can be calculated using iteration with the restriction of contact force.
通过耦合电路方程，并以动触头上的预压力为约束，经迭代运算，确定动触头的打开时间。
2
Shunt trip Shunt trip is a feature added to a circuit breaker or fusible switch to permit the remote openingof the breaker or switch by an electrical signal.
分励脱扣分励脱扣是线路断路器或可熔电闸的一个特性，可通过远程信号来进行分断或转换。
3
Coupled with circuit equations, the opening time of movable contact also can be obtained using iteration with the restriction of contact force.