Rl r1l 0.21 40 8.412
12
12
( )
( ) 40 5.48 10
5
线路:Xl x1l 0.416 40 16.64
Bl
b1l
2.74 10
6
(S)
变压器:
RT
PSU
2N2
1000SN
US%U100SN P01000U
2N
190 110
22
1000 31.5
2.32
( )
XT
2N
10.5 110
2
100 31.531
40.33
( )
GT
1000 110
2
2.56 10
6
(S)
BT
I0%SN100U
2N
10
5
0.7 31.5100 110
2
18.22 10
6
(S)
等值电路如下(图中元件参数略)
~
~
~
~
S3
~
② 变压器上的功率损耗
22
P3 Q325 15~
SZT (RT jXT) (2.32 j40.33) 0.163 j2.83322
U3110
2
2
(MVA)
则S2 P3 jQ3 SZT 25 j15 0.163 j2.833 25.163 j17.833
~22 6
SYT GTUN jBTUN 2.56 10 110
0.031 j0.22
(MVA)
2
~~
(MVA)
j18.22 10
6
110
2
② 求输电线路末端的功率
QC2
12
BlUN 5.48 10
2
5
110
2
0.663
(Mvar)
~~~
S2 S2 SYT jQC2
25.163 j17.833 0.031 j0.22 j0.663 25.194 j17.39
(MVA)