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在实际运行中,空载变压器的投入可能造成断路器闭合瞬间线路所带设备产生涌流使重闭合后加速保护误动作。目前在6kV架空配电线路中一般配有重闭合后加速保护,以保证线路发生永久性故障时,断路器重闭合后能迅速跳闸切除故障线路。
In actual operation, the input of the no-load transformer may cause the equipment brought by the line to be closed at the moment when the circuit breaker is closed so as to accelerate the misoperation after heavy closing. Currently in the 6kV overhead distribution lines are generally equipped with re-closed after the acceleration protection to ensure that the line of permanent fault, the circuit breaker can be quickly closed after the heavy trip to remove the fault line.