The energy depends on the unit-operating capacity of system, length of lino and the phase angle difference of sources both sides of the closing resister.
通流容量与系统开机容量、线路长短及合闸电阻两侧系统电源的相位差有关。
Synchronous closing is an intelligent control technique. It can make the moving and stationery contact-header of circuit breaker to close on the specified phase angle of the power system voltage wave.
同步关合是指断路器动、静触头在系统电压波形的指定相角处关合，以减小合闸操作的过电流和过电压的一种智能操作技术。
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