要求电网与发电机组在允许的压差、频差条件下，在导前合闸角到来时，发出并网指令，使发电机组平滑无冲击的并入到系统电网中。
When the phase of closing breaker is coming, the device sends out the dictation to put the dynamo into the power system smoothly and rapidly.
要求电网与发电机组在允许的压差、频差条件下，在导前合闸角到来时，发出并网指令，使发电机组平滑无冲击的并入到系统电网中。
When the phase of closing breaker is coming, the device sends out the dictation to put the dynamo into the power system smoothly and rapidly.
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