【摘要】 基于电机理论,分析了变压器空载合闸时,产生励磁涌流的原因、励磁涌流的变化规律及特点。得出了励磁涌流对电网产生的不良影响,提出了由于励磁涌流而使电网继保装置误动作的具体防止措施。更多还原

【Abstract】 In this paper the cause,the change law and the characteristics of inrush current are analyzed as transformer is switched on under no load condition,which is based on electric machine theory.A conclusion that inrush current have a harmful effect on power is drawn and some concrete preventive measures which make power relay equipment generate incorrect operation caused by inrush current are proposed.更多还原