The S22(20)-M-30-2500kVA three-phase oil-immersed fully sealed distribution transformer, unlike ordinary oil-immersed transformers, eliminates the oil conservator and uses the corrugated fins on the oil tank for heat dissipation and cooling. The corrugated design compensates for the expansion and contraction of the oil volume. This series of products is suitable for 10kV, 20kV, and 35kV distribution systems and can be used for residential areas, commercial streets, industrial and mining enterprises, as well as rural power and lighting.
S22(20) series oil-immersed distribution transformer
Table 1: Main technical parameters of S22-M type fully sealed power transformer
|
Project Capacity kVA |
Voltage combination |
Vector group Symbol |
No-load Current (%) |
No-load Loss (W) |
Impedance Voltage (%) |
Load Loss (W) |
||
|
High Voltage(kV) |
High Voltage Tap Range |
Low Voltage(kV) |
||||||
|
30 |
6 6.3 10 10.5 |
± 2 × 2.5% ± 5% |
0.4 |
Yyn11 |
0.4 |
65 |
4 |
455 |
|
50 |
0.4 |
80 |
655 |
|||||
|
63 |
0.4 |
90 |
785 |
|||||
|
80 |
0.35 |
105 |
945 |
|||||
|
100 |
0.35 |
120 |
1140 |
|||||
|
125 |
0.35 |
135 |
1360 |
|||||
|
160 |
0.30 |
160 |
1665 |
|||||
|
200 |
0.30 |
190 |
1970 |
|||||
|
250 |
0.30 |
230 |
2300 |
|||||
|
315 |
0.30 |
270 |
2760 |
|||||
|
400 |
0.25 |
330 |
3250 |
|||||
|
500 |
0.25 |
385 |
4.5 |
3900 |
||||
|
630 |
0.25 |
460 |
4460 |
|||||
|
800 |
0.20 |
560 |
5400 |
|||||
|
1000 |
0.20 |
665 |
7415 |
|||||
|
1250 |
0.20 |
780 |
8640 |
|||||
|
1600 |
0.20 |
940 |
10440 |
|||||
Table 2: Main Technical Parameters of S20-M Type Fully Sealed Power Transformer
|
Project Capacity kVA |
voltage combination |
Vector group Symbol |
No-load Current (%) |
No-load Loss (W) |
Impedance Voltage (%) |
Load Loss (W) |
||
|
High voltage(kV) |
High voltage tap range |
Low voltage (kV) |
||||||
|
30 |
6 6.3 10 10.5 |
± 2 × 2.5% ± 5% |
0.4 |
Dyn11 Or Yyn0 |
0.28 |
70 |
4 |
505 |
|
50 |
0.25 |
90 |
730 |
|||||
|
63 |
0.23 |
100 |
870 |
|||||
|
80 |
0.22 |
115 |
1050 |
|||||
|
100 |
0.21 |
135 |
1265 |
|||||
|
125 |
0.20 |
150 |
1510 |
|||||
|
160 |
0.19 |
180 |
1850 |
|||||
|
200 |
0.18 |
215 |
2185 |
|||||
|
250 |
0.17 |
260 |
2560 |
|||||
|
315 |
0.16 |
305 |
3065 |
|||||
|
400 |
0.16 |
370 |
3615 |
|||||
|
500 |
0.15 |
430 |
4330 |
|||||
|
630 |
0.15 |
510 |
4.5 |
4960 |
||||
|
800 |
0.14 |
630 |
6000 |
|||||
|
1000 |
0.13 |
745 |
8240 |
|||||
|
1250 |
0.12 |
870 |
9600 |
|||||
|
1600 |
0.11 |
1050 |
11600 |
|||||
