(三) 功率分布计算： 1、各元件功率损耗： ① 两台T4变压器并联损耗：

′ΔSo=2ΔS0=0.232+j0.352

ΔST4

1110.22+6.22

1.465+j34.705 = RT4+XT4 =UN

= 0.0173+j0.468 MVA

S2

② T3变压器损耗： ΔST3

5.62+4.42

9.831+j158.813 =RT3+XT3=UN

= 0.0412+j0.666 MVA

③ 100Km与70Km线路交点4 末端功率损耗

′

S4= ST4+ SLD4+ΔSo

S2

= 0.0173+10.2+0.0232

+j 0.468+6.2+0.352 MVA= 10.2405+7.02 MVA

④ 120Km与100Km线路交点3末端功率损耗 S3= ST3+ SLD3+ΔS0

= 0.0412+0.00976+5.6

+j 0.666+0.088+4.4 MVA= 5.651+j5.154 MVA

⑤ 1.4间100Km线路损耗 SLD14

77

10.2405+j7.02 = 4.217+j2.891 MVA =S=

4B22

jUN= 4.217+j1.197 MVA

SLD14′=SLD14