(成三相自耦变压器时 U1=66+33=991 1IN 2/N 3.3k 1A Phase 9 573.8 UINph=5.7kv 1.9 U2Nph=1.9kv 1Nφ K=K,=5.7/1.〔 03=5 河海大学电气学院03-5-14 河海大学电气学院 7 ◼ (2) 接成三相自耦变压器时 1 2 1 2 : 6.6 3.3 9.9 3.3 : 5.7 1.9 5.7 /1.9 3 lN lN Nph Nph ph line U kV U kV Phase U kV U kV K K = + = = = = = = =