微机型主变零序保护中电流大小及方向判别元件的取值微機型主變零序保護中電流大小及方嚮判彆元件的取值 미궤형주변령서보호중전류대소급방향판별원건적취치 Select current discriminating element for microcomputer transformer's zero-sequence protection
万方数据
水电站机电技术水電站機電技術수전참궤전기술 MECHANICAL & ELECTRICAL TECHNIQUE OF HYDROPOWER STATION 2001年4期24-25,共2页
