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220kv power transformers were used in 230kv or 252kv power system.
220kv power transformer:
Feature:
220kv on-load-tap-changing power transformer is made of high-quality silicon-steel sheets,and laminated by steps,it is advantageous in low loss,low noise ,low voltage partial discharge and high anti short circuit capacity.the dynamical and thermal stability of this transformer ,of which the coils are winded by high-quality oxygen-free copper wire as well as used pre-compressing brackets processes and interior and exterior structure.the transformer tank used wave form shell.has very nice appearance ,the core is with D shape yoke and 45 angle seaming,the core and oil box are well fixed .
500420000/220kv series three phase duplex winding regulating transformer with load:
Rated capacity (KVA) |
Voltage |
connction |
9-type KW |
10-type KW |
11-type KW |
No-load current |
Impedence voltage(%) |
H.V |
L.V |
No- |
Load-Loss |
No- |
Load-Loss |
No- |
Load-Loss |
(%) |
(KV) |
(KV) |
Load Loss |
Load Loss |
Load Loss |
|
|
|
|
|
|
|
31500 |
|
6.3 |
|
35 |
135 |
31.5 |
128.3 |
28 |
128.3 |
0.7 |
|
40000 |
|
6.3 |
|
41 |
157 |
36.9 |
149.2 |
32.8 |
149.2 |
0.7 |
|
50000 |
|
10.5 |
|
49 |
189 |
44.1 |
179.6 |
39.2 |
179.6 |
0.65 |
|
63000 |
|
11 |
|
58 |
220 |
52.2 |
209 |
46.4 |
209 |
0.65 |
|
75000 |
|
10.5 |
|
67 |
250 |
60.3 |
237.5 |
53.6 |
237.5 |
0.6 |
|
90000 |
|
11 |
|
77 |
288 |
69.3 |
273.6 |
61.6 |
273.6 |
0.55 |
|
120000 |
220 |
11 |
|
94 |
345 |
84.6 |
327.8 |
75.2 |
327.8 |
0.55 |
|
150000 |
240 |
13.8 |
YNd11 |
112 |
405 |
100.8 |
384.8 |
89.6 |
384.8 |
0.5 |
|
160000 |
±2×2.5% |
11 |
|
117 |
425 |
105.3 |
403.8 |
93.6 |
403.8 |
0.49 |
|
180000 |
|
13.8 |
|
128 |
459 |
115.2 |
436.1 |
102.4 |
436.1 |
0.46 |
12~14 |
240000 |
|
15,75 |
|
160 |
567 |
144 |
538.7 |
128 |
538.7 |
0.42 |
|
300000 |
|
18 |
|
189 |
675 |
170.1 |
641.3 |
151.2 |
641.3 |
0.38 |
|
360000 |
|
20 |
|
217 |
774 |
195.3 |
735.3 |
173.6 |
735.3 |
0.38 |
|
370000 |
|
15.75 |
|
221 |
790 |
198.9 |
750.5 |
176.8 |
750.3 |
0.38 |
|
400000 |
|
18 |
|
234 |
837 |
210.6 |
795.2 |
187.2 |
795.2 |
0.35 |
|
4200000 |
|
20 |
|
242 |
868 |
217.8 |
824.6 |
193.6 |
824.6 |
0.35 |
|
31500180000/220kv series three phase duplex winding regulating transformer with load: |
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|
|
|
Rated capacity (KVA) |
Voltage |
connction |
9-type KW |
10-type KW |
11-type KW |
No-load current |
Impedence voltage(%) |
H.V |
L.V |
No- |
Load-Loss |
No- |
Load-Loss |
No- |
Load-Loss |
(%) |
(KV) |
(KV) |
Load Loss |
Load Loss |
Load Loss |
|
|
|
|
|
|
|
31500 |
220 |
6.3 |
YNd11 |
38 |
135 |
34.2 |
128.3 |
30.4 |
128.3 |
0.7 |
|
40000 |
240 |
10.5 |
45 |
157 |
40.5 |
149.2 |
36 |
149.2 |
0.63 |
|
50000 |
±2×2.5% |
35 |
54 |
189 |
48.6 |
179.6 |
43.2 |
179.6 |
0.56 |
12-14 |
63000 |
|
38.5 |
63 |
220 |
56.7 |
209 |
50.4 |
209 |
0.56 |
|
90000 |
|
10.5 |
80 |
288 |
72 |
273.6 |
64 |
273.6 |
0.49 |
|
120000 |
|
11 |
99 |
346 |
89.1 |
328.7 |
79.2 |
328.7 |
0.49 |
|
150000 |
|
35 |
116 |
405 |
104.4 |
384.8 |
92.8 |
384.8 |
0.42 |
|
180000 |
|
38.5 |
135 |
468 |
121.5 |
444.6 |
108 |
444.8 |
0.42 |
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