数字式发电机、变压器差动保护试验方法

发电厂、变电站的变压器、发电机等大型主设备价值昂贵,当它们发生故障时,变压器、发电机的主保护纵向电流差动保护应准确及时地将它们从电力系统中切除,确保设备不受损坏。模拟发电机、变压器实际故障时的电流情况来进行差动试验,验证保护动作的正确性至关重要。

Differential Protection Testing Method on Digital-typed Generator and Transformer

The transformers and generators of the power plant and transformer substation is pricy, therefore, when the failures happen to them, the differential protection of the vertical current of the transformer and generator main protection should exactly and timely switch them off the power system to ensure the safety. The differential test to simulate the practical current during the generator and transformer fail to work, and more over to vandalize the correctness of the protection is extremely important.