Though microprocessor - based adaptive single - phase reclosing scenario can distinguish instantaneous fault from permanent fault definitely and avoid the blindness of traditional automatic reclosing , in some cases , adaptive reclosing can confound instantaneous fault with permanent fault . so it has defects too 微机式自适应单相重合闸在重合闸之前,虽然可以明确地区分出线路发生的是瞬时性故障还是永久性故障,从而避免了传统自动重合闸的盲目性。