若对称三相电源的U相电压为Uu=lOOsin(ωt+60°)V,相序为U-V-W,则当电源作星形连接时线电压为Uuv=173.2sin(ωt+90°)V。()
举一反三
- 若对称三相电源的U相电压为Uu=100sin(ωt+60)V,相序为U-V-W,则当电源作星形连接时线电压为Uuv=173.2sin(ωt+90)V。
- 若对称三相电源的U相电压为uu=100sin(wt+60°)V相序为U-V-W,则当电源作星型联结时线电压uUV=173.2sin(wt+90°)V。
- 若对称三相电源的U相电压为[img=184x33]1802e40182b53ee.png[/img]V,相序为U—V—W,则当电源作星形(Y形)连接时线电压[img=215x35]1802e4018b5c4f5.png[/img]v
- 若对称三相电源的U相电压为[img=184x33]1802e401f6a25cb.png[/img]V,相序为U—V—W,则当电源作星形(Y形)连接时线电压[img=215x35]1802e401ff3fbc8.png[/img]v
- 已知对称三相电源的相电压uA=10sin(ωt+60°)V,相序为A─B─C,则当电源星形联接时线电压uAB为() A: 17.32sin(ωt+90°)v B: 10sin(ωt+90°)v C: 17.32sin(ωt-30°)v D: 17.32sin(ωt+150°)v