Jiangsu Yawei Transformer Co.,Ltd. is one of the leading manufacturers and suppliers of 220kv oil-immersed three-phase double-winding on-load voltage regulating power transformer in China. Please feel free to buy high quality 220kv oil-immersed three-phase double-winding on-load voltage regulating power transformer from our factory. Customized orders are welcome.
The 220kV oil-immersed three-phase double-winding on-load voltage regulating power transformer is designed for high-efficiency voltage regulation and stable operation in modern power transmission systems. It adopts a high-quality grain-oriented silicon steel core and advanced oil-immersed cooling structure to reduce losses, enhance heat dissipation, and improve overall energy efficiency. The integrated on-load tap changer enables continuous voltage adjustment without interrupting system operation, ensuring flexible and reliable grid performance under varying load conditions.
With a robust insulation system and optimized winding design, the transformer delivers excellent short-circuit withstand capability, low partial discharge, and strong mechanical strength. It is suitable for substations, industrial power distribution, and regional grid interconnection projects where stable and precise voltage control is required. Designed for long service life and low maintenance, it ensures safe, efficient, and dependable operation in demanding environments, meeting international standards and customizable engineering requirements.
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Specifications
|
(kVA) Rated capacity |
Rated voltage and tapping range |
Vector group |
(%) No load current |
(%) Short-circuit impedance |
(kW) No load losses |
(kW) On load losses |
||
|
HV |
(%) Tapping range |
LV |
||||||
|
31500 |
220 230 |
±4×1.25 ±6×1.25 ±8×1.25 |
6.3 6.6 10.5 21 36 37 38.5 |
YNd11 |
0.46 |
12~14 |
17 |
115 |
|
40000 |
0.46 |
20 |
134 |
|||||
|
50000 |
0.42 |
24 |
161 |
|||||
|
63000 |
0.42 |
28 |
188 |
|||||
|
90000 |
10.5 21 36 37 38.5 |
0.36 |
35 |
246 |
||||
|
120000 |
0.36 |
43 |
304 |
|||||
|
150000 |
0.33 |
51 |
360 |
|||||
|
180000 |
0.30 |
59 |
413 |
|||||
|
120000 |
66 69 |
0.36 |
45 |
303 |
||||
|
150000 |
0.33 |
53 |
355 |
|||||
|
180000 |
0.30 |
62 |
406 |
|||||
|
240000 |
0.24 |
77 |
504 |
|||||
