Jiangsu Yawei Transformer Co.,Ltd. is one of the leading manufacturers and suppliers of 500kv oil-immersed three-phase double-winding unexcited voltage regulating power transformer in China. Please feel free to buy high quality 500kv oil-immersed three-phase double-winding unexcited voltage regulating power transformer from our factory. Customized orders are welcome.
The 500kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer is designed for extra-high-voltage transmission systems, ensuring efficient power transfer, stable voltage control, and high operational reliability. It adopts a high-quality grain-oriented silicon steel core and advanced oil-immersed cooling technology to reduce losses, improve thermal performance, and enhance energy efficiency. The optimized winding and insulation structure provides excellent dielectric strength, low partial discharge, and strong short-circuit withstand capability.
This transformer is suitable for large-scale substations, power grid interconnection projects, and critical transmission infrastructure. It delivers stable performance under heavy load conditions with long service life and low maintenance requirements. Manufactured in compliance with international standards, it can also be customized to meet specific technical requirements, environmental conditions, and utility specifications, making it a reliable solution for modern high-capacity power transmission networks.
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Specifications
|
(MVA) 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 |
||||||
|
120 |
500 525 550 |
±2×2.5 |
13.8,15.75 |
YNd11 |
0.2 |
14 |
41 |
356 |
|
160 |
0.16 |
50 |
441 |
|||||
|
240 |
0.16 |
69 |
599 |
|||||
|
300 |
13.8,15.75,18 |
0.16 |
80 |
707 |
||||
|
370 |
15.75,18,20 |
0.12 |
94 |
810 |
||||
|
400 |
18,20,24 |
0.12 |
96 |
855 |
||||
|
420 |
15.75,18,20 |
0.12 |
14或(or)16 |
102 |
860 |
|||
|
480 |
15.75,18,20 |
0.12 |
110 |
954 |
||||
|
600 |
15.75,18,20,24 |
0.12 |
143 |
1202 |
||||
|
720 |
18,20,24 |
0.08 |
168 |
1382 |
||||
|
750 |
20,22 |
0.08 |
16或(or)18 |
173 |
1422 |
|||
|
780 |
22 |
0.08 |
176 |
1467 |
||||
|
860 |
0.08 |
190 |
1575 |
|||||
|
1140 |
27 |
0.08 |
237 |
1949 |
||||
|
1170 |
0.08 |
242 |
1980 |
|||||
