战学牛,陈月红,刘太华,等.空投变压器导致线路差动误动的事故分析[J].电力系统保护与控制,2007,35(23):66-69,76.[ZHAN Xue-niu, CHEN Yue-hong, LIU Tai-hua, et al. A mal-operation analysis of line current differential protection caused by no-load transformer[J]. Power System Protection and Control,2007,V35(23):66-69,76]