??Q?UI1Sin30?UI2Sin(?60)?100?10?0.5?100?10?0.866??366var
S?P?Q22?13662?3662?1414VA
13、
?Z1??j10?10??90?
Z2?40?j30?50?36.87? ??I?I1Z2Z1?Z2Z1Z1?Z2Z1Z2Z1?Z25?30?50?36.87?j10?40?j305?30?10??9044.72?26.57????????250?66.87??44.72?26.57?5.59?40.3A
???I?I2??1.12??86.57A
?Z?R??2?50?36.87?10??9044.72?26.57????11.7??70?
???I??Z?5?30??11.7??70??58.5??40?V U??10?0?A 14、令I2?(?j1)I?I1?2??j10A
1??I??I??10?j10?14.14??45?A I12Z?j1??j11?j1?0.5?j0.5?0.707?45?
???I?Z?14.14??45??0.707?45??10?0?V US15、
Z1?6?j8?10?53.1? Z2??j10?10??90? ??I?USZ1?Z2?15?0???6?j8?j10?156.32??18.4??2.37?18.4A
???I?Z?2.37?18.4??10?53.1??23.7?71.5?V U11??I?Z?2.37?18.4??10??90??23.7??71.6?V U22??8?0?VU16、令
Z?Z3?Z1Z2Z1?Z2?1?j0.5?(1?j1)(3?j1)1?j1?3?j1?2?
??I3?UZ?8?02Z2??4?0A
????I?I13Z1?Z2?4?0(3?j1)1?j1?3?j1?3?j1?3.16??18.4A
?17、三相负载用星形连接
Z?4?j3?5?36.9?
?Ip?UZp?2205?44A
P?3UpIpcos36.9?3?220?44?cos36.9?23222.8W Q?3UpIpsin36.9?3?220?44?sin36.9?17436.2乏
S?P?Q22?????23222.8?17436.222?29040VA
18、 Ip?UpR2?38010?38A
P?3IpR?3?38?10?43320W
2