数字式发电机、变压器差动保护试验方法  

Differential Protection Testing Method on Digital-typed Generator and Transformer

作　　者：陈步祥 

机构地区：[1]湖南郴电国际发展股份有限公司郴州分公司,湖南郴州423000

出　　处：《中国水能及电气化》2007年第4期44-48,共5页China Water Power & Electrification

摘　　要：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。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.

关 键 词：数字式 差动保护 试验方法 

分 类 号：TM772[电气工程—电力系统及自动化]