对称三相电源接星形对称负载,若线电压有效值为380V,三相视在功率为6600VA,则相电流有效值为 ( )。
发布时间:2024-09-21
A.10A
B.20A
C.17.32A
D.30A
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68474' and id < 4421066 and id<>'4421066' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68474' and id > 4421066 and id<>'4421066' order by id asc limit 5