Your Professional Substation Transformer Supplier
The company has strong manufacturing capabilities and an efficient marketing system, with products covering 500kV and below ultra-high voltage transformers, 35kV and below dry-type transformers, oil immersed transformers, amorphous alloy transformers, wind and solar storage new energy transformers, prefabricated substations, as well as export series such as single-phase flip type transformers, three-phase transformers, isolation transformers, control transformers, voltage regulators, etc. It can also customize various special transformers such as grounding transformers, arc suppression coils, reactors, rectifier transformers, mining transformers, marine transformers, etc. according to customer needs.
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110kv 3 Phase Substation TransformerRated Capacity: 6.3MVA~180MVA. HV Voltage: 110kV / 115kV / 121kV. LV Voltage: 6.3kV, 10.5kV, 35kV, 0.4kV. Tap Range: ±2×2.5%, ±8×1.25%. Tap Type: OLTC / NLTC
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Medium Voltage Substation TransformerVoltage Level: 3.3kV, 6.6kV, 10kV, 20kV, 35kV. Rated Capacity: 30kVA~50,000kVA. Phase: Single / Three-Phase. Tap: ±2×2.5%. Cooling: ONAN / ONAF / AF
Why choose us
Certification
The enterprise has obtained system certifications such as ISO9001, ISO14001, ISO45001, SA8000, etc. The 10kV and 35kV distribution transformers and box type substations have successively obtained international certifications such as IEC, UL, TUV, CE, KEMA, GOST, etc.
Sales Market
Our products are not only widely recognized in the Chinese market but are also exported to over 70 countries and regions, including the United States, Europe, Australia, and Southeast Asia.
OEM/ODM
We have a wide range of products, and we will provide technical support according to your actual needs to choose the right product for you.
Product Parameters
|
Capacity |
Up to 150 MVA or Customized |
|
Frequency |
60 / 50Hz |
|
Voltage (HV) |
Up to 230 KV or Customized |
|
Voltage (LV) |
Customized |
|
Impedance |
10%-18% |
|
Connections (Vector Group) |
Dyn11 |
|
On load tap changer/off-load tap changer |
±8×1.25%/±2×2.5% |
|
Core materials |
Silicon Steel |
|
Winding materials |
Aluminum or Copper |
|
Lightning Impulse Withstand Voltage |
IEC standard |
|
AC withstand voltage |
IEC standard |
|
Temperature Rise class |
A-class |
|
Temperature Rise |
60/65K |
|
Cooling method |
ONAN/ONAF |
High efficiency and low loss
High-quality material process: Our transformer is crafted using premium silicon steel sheets, such as oriented silicon steel, renowned for their superior magnetic properties. Coupled with cutting-edge winding techniques, including foil and helical winding, this ensures a significant reduction in no-load losses (iron loss) and load losses (copper loss), enhancing performance and efficiency.
Energy-saving design
Our transformers are engineered to meet and exceed international energy efficiency standards. With some models boasting efficiencies of over 99%, they dramatically cut long-term operational costs, offering a sustainable and economical solution for energy-conscious operations.
Adapt to the demands of complex power grids
Wide voltage regulation: Our transformers feature either on-load tap changers (OLTC) or no-excitation voltage regulation to seamlessly adapt to expansive voltage fluctuations, ensuring reliable performance even in the most dynamic grid environments.
Customization and global applicability
Flexible design: We offer a bespoke design service, customizing transformers with capacities ranging from 10kVA to an impressive 1000MVA, and voltage levels reaching up to ±1100kV ultra-high voltage. Special protections, including salt spray resistance and explosion-proofing, are available to meet specific customer needs, ensuring our transformers are ready for any global market.

Flame retardant,explosion-proof,non-pollution,environmental friendly, can be installed in the load center.
Short circuit resistance, high lightning impact level,strong overload capacity.
Low loss, high power saving effect.Economical operation, maintenance-free.
Small volume, light weight, small space,easy installation.
More stable internal structure, no malfunctions during transportation.
Adopt the latest insulatoin structure.
Excellent anti-short-circuit ability.
As to the heat dissipating element adopts corrugated sheet or sheet radiator and other components.
The iron core adopts high quality cold rolled graind oriented silicon steel sheet ,it is low loss and small magnetostriction.The whole iron core adopts the structure of 45-degree full oblique joint and round cross-section, which will not be loosened due to vibration during transportation and operation.

Packing & Delivery
We offer flexible and secure packaging solutions to ensure safe delivery in different shipping conditions:
Steel Frame + Wooden Case Packaging
Suitable for LCL (less-than-container load) shipments, providing strong protection during mixed cargo transportation.
Full Container Loading (FCL) Packaging
Equipment is securely fixed and loaded as a complete unit inside the container for maximum stability during long-distance sea freight.
Steel Frame Packaging
Designed for truck transportation, ensuring durability and easy handling during inland delivery.
Specification
|
Rated capacity kVA |
Voltage combination |
NO-load loss W |
Load loss W |
No-Load current% |
Short-circuit |
|||
|
HV (KV ) |
HV tapping range |
LV (KV) |
Connection symbol |
Impedance |
||||
|
30 |
6.3kV |
±2 |
0.4 |
Dyn11 or Yyn0 |
90 |
660 |
2.1 |
5.5 |
|
50 |
130 |
960 |
2 |
|||||
|
63 |
150 |
1145 |
1.9 |
|||||
|
80 |
180 |
1370 |
1.8 |
|||||
|
100 |
200 |
1650 |
1.6 |
|||||
|
125 |
240 |
1980 |
1.5 |
|||||
|
160 |
290 |
2420 |
1.4 |
|||||
|
200 |
330 |
2860 |
1.3 |
|||||
|
250 |
400 |
3350 |
1.2 |
|||||
|
315 |
480 |
4010 |
1.1 |
|||||
|
400 |
570 |
4730 |
1 |
|||||
|
500 |
680 |
5660 |
1 |
|||||
|
630 |
810 |
6820 |
0.9 |
6 |
||||
|
800 |
980 |
8250 |
0.8 |
|||||
|
1000 |
1150 |
11330 |
0.7 |
|||||
|
1250 |
1350 |
13200 |
0.7 |
|||||
|
1600 |
1630 |
15950 |
0.6 |
|||||
|
2000 |
1950 |
19140 |
0.6 |
|||||
|
2500 |
2340 |
22200 |
0.6 |
|||||
Certificate




FAQ
As one of the most professional substation transformer manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to wholesale durable substation transformer made in China here from our factory. Customized orders are welcome.
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