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Extra High Voltage Transformer
The accompanying image features an Extra High Voltage Transformer manufactured by TRANSpower Electrical. Recognized for its commitment to excellence, TRANSpower Electrical specializes in the production of high-quality transformers that adhere to the standards established by the American National Standards Institute (ANSI/IEEE) and the Canadian Standards Association (CSA). With over a decade of operational success, our products have consistently proven reliable without failure. Our extensive product range includes extra high voltage transformers with capacities from 6,300 kVA to 360,000 kVA and operating voltages ranging from 35 kV to 220 kV, addressing diverse power transmission requirements effectively.
Products Description

TRANSpower Electrical's extra high voltage transformers demonstrate exceptional craftsmanship and advanced manufacturing techniques. The cores are manufactured from high-quality silicon steel sheets to ensure optimum permeability and minimum losses. These precision windings enhance efficiency and reliability. The insulating oil used in the transformer's filler tank is known for its excellent thermal conductivity and insulating properties, effectively cooling the equipment and providing strong insulation protection. The trusted TRANSpower UHV electrical transformers set the benchmark for performance and durability in power transmission solutions.
UHV transformers serve as the backbone of power systems, meticulously engineered to facilitate stable power transmission. Utilizing cutting-edge materials and technologies, these transformers feature advanced insulation and cooling systems, minimized power consumption, and reduced noise levels, all while being adaptable to challenging environmental conditions. We provide tailored solutions that address diverse requirements, ensuring exceptional performance and long-term durability.


Extra-high voltage transformers are widely used in municipal, industrial, and large-scale infrastructure projects. They offer high-efficiency voltage boosting and bucking, ensuring a balance between long-distance transmission and terminal power supply. This provides stable power security for domestic, commercial, and industrial facilities.
Extra high voltage transformer
|
Industry-specific attributes |
|
|
Product |
Extra high voltage transformer |
|
Phase |
Three phase |
|
Coil Structure |
Toroidal |
|
Coil Number |
Double winding or Triple winding |
|
Other attributes |
|
|
Place of Origin |
Zhejiang, China |
|
Model Number |
Three phase Extra high voltage transformer (As per customer requirements) |
|
Rated capacity |
From 6300kva to 180mva |
|
High Voltage |
From 33kV to 220kV |
|
Medium Voltage |
36/37/38.5/66/69/115/121kV |
|
Low Voltage |
From 6.3kV to 69kV |
|
Frequency |
50/60Hz |
|
Standard |
IEC, ANSI, IEEE, CSA |
|
Vector group |
Yd11, YNd11, YNyn0d11, YNa0d11 |
|
Material |
Aluminum/Copper |
|
Application |
Power plant (station), substation (power distribution stations), Urban power grids, Industrial facilities, Large-scale infrastructure projects |
|
Type |
Oil-immersed Transformer |
|
Feature |
Low Loss |

Extra high voltage transformer parameters
The following table lists the standard parameters for the 220kV Extra high voltage transformer. If you require other capacities and voltage levels, please contact TRANSpower for accurate technical specifications and customized offers.

Below Specs Are ONLY For Reference.
|
CAPACITY |
Voltage ratio and tap range (kV) |
Connection Symbol |
No-load loss (kW) |
Full-load loss (kW) |
Impedance (%) |
No-load current |
|
|
HV |
LV |
||||||
|
31500 |
220±8x1.25% |
66.3; 6.6 10.5; 11 35; 37; 38.5 |
YNd11 |
38 |
135 |
12~14 |
0.70 |
|
40000 |
45 |
157 |
0.63 |
||||
|
50000 |
54 |
189 |
0.56 |
||||
|
63000 |
63 |
220 |
0.56 |
||||
|
90000 |
10.5; 11 35; 37; 38.5 |
80 |
288 |
0.49 |
|||
|
120000 |
99 |
346 |
0.49 |
||||
|
150000 |
116 |
405 |
0.42 |
||||
|
180000 |
135 |
468 |
0.42 |
||||
|
120000 |
66 69 |
102 |
355 |
0.49 |
|||
|
150000 |
120 |
415 |
0.42 |
||||
|
180000 |
140 |
475 |
0.42 |
||||

10MVA 33kV Three Phase Extra high voltage transformer dimensions and weight details

Frequently asked questions (FAQ)
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