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目前發电厂与系統之間或是以單回輸电綫路连絡的电力系統的个別部分之間的并列运行,是靠应用带有檢查和捕捉同期的自动重合閘或是应用带自同期的自动重合閘来恢复的。运行經驗証明,当輸电线路上傳送大量功率时,由于电力系統已解列部分的电压相位迅速离开,带捕捉同期的裝置常常不能动作,結果使事故扩大且切断負荷。裝置能保証并列运行的恢复,但只能应用在連絡發电站和系统的輸电綫路上,而不能应
The current parallel operation of individual sections of a power system interconnected between a power plant and a system or between single power transmission lines depends on the application of automatic reclosing with the application of checking and capturing the same period or applying self- Auto reclosing to recover. Operation experience shows that when a large amount of power is transmitted on the transmission line, the devices with the same phase of capture often can not operate due to the voltage phase of the discharged part of the power system rapidly leaving. As a result, the accident is enlarged and the load is cut off. The device can ensure the recovery of the parallel operation, but can only be applied to the transmission line connecting the power station and the system, but not