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630KVA 10KV Three Phase Oil Immersed Transformer
  • 630KVA 10KV Three Phase Oil Immersed Transformer630KVA 10KV Three Phase Oil Immersed Transformer
  • 630KVA 10KV Three Phase Oil Immersed Transformer630KVA 10KV Three Phase Oil Immersed Transformer
  • 630KVA 10KV Three Phase Oil Immersed Transformer630KVA 10KV Three Phase Oil Immersed Transformer

630KVA 10KV Three Phase Oil Immersed Transformer

This 630KVA 10KV Three Phase Oil Immersed Transformer produced by our factory uses very high-quality silicon steel sheets as the material for its core. The transformer windings are made of new materials, and they are combined into the body using new technologies. This significantly reduces the no-load loss and load loss of the transformer. Thus, it becomes more energy-efficient and cost-effective.
Capacity: 630KVA
input voltage: 10KV
output voltage:0.4KV
Frequency: 50/60Hz
Connection: Dyn11
Phase: Three
Cooling method:ONAN
Winding material: Aluminum / Copper
Impedance voltage:4%
No load: ≤1.2kW
Load: ≤8.5kW

This 630KVA 10KV Three Phase Oil Immersed Transformer has eliminated the design of the oil storage tank, reducing the operation and maintenance methods of the transformer.It is also highly suitable for countries and regions with large temperature differences, minimizing the oil leakage risk of oil-immersed transformers. It adopts a corrugated oil tank to replace the traditional oil pipe structure, which not only boosts the heat dissipation efficiency of the 630kVA 10kV oil-immersed transformer but also enhances its operational stability. The exterior of the transformer tank is also treated with a moisture-resistant and anti-corrosion coating process to ensure product integrity during long-distance transportation.

This model is widely used in:

Industrial plants

Manufacturing workshops

Commercial buildings

Mining projects

Solar power systems

Wind power substations

Urban and rural power grids

Infrastructure projects

Its compact structure, low noise operation, and excellent heat dissipation make it suitable for both indoor and outdoor installations.

630KVA 10KV Three Phase Oil Immersed Transformer

Transformer oil pipe

630KVA 10KV Three Phase Oil Immersed Transformer

oil conservator

Technical Document

Parameter Name Parameter Value
Rated Capacity 630kVA
High-Voltage Rated Input Voltage 10kV
Low-Voltage Rated Output Voltage 0.4kV
Rated Frequency 50/60Hz
Connection Group Dyn11
Number of Phases Three-phase
Winding Material Aluminum/Copper
Impedance Voltage 4%±10%
Cooling Method ONAN (Oil-Immersed Natural Air Cooling)
Maximum Ambient Temperature +40℃
Minimum Ambient Temperature -45℃
Altitude ≤1000m; Parameters shall be corrected when altitude ≥1000m
No-Load Loss ≤1.2kW (at 75℃)
Load Loss ≤8.5kW (at 75℃)
No-Load Current ≤2.0%
Insulation Thermal Class Class A (105℃)
Power Frequency Withstand Voltage (1min) High-voltage side: 35kV; Low-voltage side: 5kV
Lightning Impulse Withstand Voltage High-voltage side: 75kV (peak value); Low-voltage side: 10kV (peak value)
IP Rating IP23 (outdoor type) / IP20 (indoor type)
Oil Tank Structure Corrugated oil tank (without conservator)

Product Features

High Energy Efficiency

The transformer adopts premium cold-rolled grain-oriented silicon steel sheets with low magnetic flux leakage and reduced no-load losses. Compared with conventional transformers, it helps reduce long-term electricity consumption and operating costs.

Strong Short-Circuit Resistance

The winding structure is optimized through advanced electromagnetic calculations, improving the transformer's ability to withstand sudden short circuits and voltage fluctuations.

Excellent Heat Dissipation

The corrugated tank design increases heat dissipation efficiency and allows the transformer to operate continuously under heavy load conditions.

Stable Outdoor Operation

The fully sealed oil tank prevents oxidation and moisture contamination, extending transformer service life and reducing maintenance frequency.

Low Noise Design

The core clamping structure and precision manufacturing technology effectively reduce operational vibration and noise.

Operating Environment

Temperature Conditions:

Long-term Operating Ambient Temperature: -25℃ ~ +45℃.

Maximum Operating Ambient Temperature: Not exceeding +50℃.


Storage and Transportation Temperature:

-40℃ ~ +60℃.


Humidity Conditions:

Relative Humidity: ≤95% at 25℃


Altitude Requirements:

Rated Altitude Adaptation Range: ≤1000 meters

Our Factory

630KVA 10KV Three Phase Oil Immersed Transformer

Sheet metal workshop

630KVA 10KV Three Phase Oil Immersed Transformer

Foil winding workshop

630KVA 10KV Three Phase Oil Immersed Transformer

Winding workshop

630KVA 10KV Three Phase Oil Immersed Transformer

Winding oven workshop

630KVA 10KV Three Phase Oil Immersed Transformer

Transformer assembly workshop

630KVA 10KV Three Phase Oil Immersed Transformer

Transformer commissioning workshop

Why Choose an Oil Immersed Transformer?

Compared with dry type transformers, oil immersed transformers generally provide:

● Better overload capability

● Higher cooling efficiency

● Longer service life

● Lower operating noise

● More cost-effective pricing for medium and high capacities

For outdoor substations and heavy-load applications, oil immersed transformers remain one of the most reliable and economical choices.

Packaging & Delivery

The 630KVA 10KV Three Phase Oil Immersed Transformer is securely packed to ensure safe international transportation. Export packaging options include:

● Wooden case packaging

● Steel frame protection

● Moisture-proof wrapping

● Container loading support

Professional logistics coordination helps ensure timely delivery for overseas projects.

FAQ

1.What is the service life of a 630KVA oil immersed transformer?

Under normal operating conditions and regular maintenance, the service life can exceed 25 years.

2.Can the transformer be customized for different voltages?

Yes. Voltage, frequency, vector group, impedance, and accessories can all be customized according to project requirements.

3.Which is better, copper winding or aluminum winding?

Copper winding transformers provide better conductivity, overload capability, and longer lifespan, while aluminum winding transformers offer a more economical solution.

4.Does the transformer support outdoor installation?

Yes. The fully sealed structure and anti-corrosion treatment make it suitable for long-term outdoor operation.

5.What standards does the transformer comply with?

The transformer can be manufactured according to IEC, ANSI, IEEE, or GB standards based on customer requirements.

Professional Transformer Manufacturer in China

Zhejiang Guangbian Electric Power Technology Co., Ltd. specializes in manufacturing oil immersed transformers, dry type transformers, substations, and customized power distribution equipment for global markets.

With experienced engineering teams, strict quality control systems, and international export capabilities, GUANGBIAN provides reliable transformer solutions for industrial, commercial, and utility projects worldwide.

Hot Tags: 630KVA 10KV Three Phase Oil Immersed Transformer, 630KVA Oil Immersed Transformer, 10KV Transformer Supplier
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