题目内容
复阻抗为Z的三相对称电路中,若保持电源电压不变,当负载接成星形时消耗的有功功率为PY,接成三角形时消耗的有功功率为PD,则两种接法时有功功率的关系为
。(0.5)
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69423' and id < 4495287 and id<>'4495287' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69423' and id > 4495287 and id<>'4495287' order by id asc limit 5