630KVA 20KV Oil Immersed Transformer

The 630KVA 20KV Oil Immersed Transformer manufactured by Guangbian is suitable for factories and industrial projects that require stable 24-hour operation. With 6% short-circuit impedance, it can withstand the impact caused by frequent motor startups and heavy-load equipment. The Dyn5 connection group provides good harmonic suppression and improves compatibility with local power grids.

Using high-quality silicon steel cores and all-copper windings, this transformer features low no-load loss and load loss, helping customers reduce energy consumption and long-term operating costs. With more than 20 years of manufacturing experience, Guangbian has supplied reliable transformer solutions for industrial projects worldwide, including a palm oil refinery project in Indonesia.

Strict Quality Control and Factory Testing

Every 630KVA 20KV Oil Immersed Transformer produced by Guangbian undergoes comprehensive factory testing before delivery, including:

● Winding resistance testing

● Voltage ratio testing

● Insulation resistance testing

● Short-circuit impedance testing

● Temperature rise testing

● Oil leakage inspection

● Induced voltage testing

● Partial discharge testing

These strict quality inspection procedures ensure stable operation and long-term reliability after installation.

Technical Document

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

Sheet metal workshop

Foil winding workshop

Winding workshop

Winding oven workshop

Transformer assembly workshop

Transformer commissioning workshop

Why Choose Guangbian?

More Than 20 Years of Manufacturing Experience

Guangbian specializes in oil immersed transformers and power distribution equipment with extensive export experience.

Customized Transformer Solutions

Custom voltage, frequency, connection group, and protection configurations are available according to project requirements.

International Export Experience

Transformers have been exported to many countries and regions worldwide.

Strict Quality Management

Production complies with IEC standards and international quality requirements.

Professional Technical Support

Guangbian provides technical consultation, installation guidance, and after-sales support for global customers.

FAQ

1.What is the service life of a 630KVA 20KV Oil Immersed Transformer?

Under proper installation and maintenance conditions, the service life can exceed 25 years.

2.Can this transformer operate in tropical climates?

Yes. The transformer is specially designed for tropical environments with high humidity and high temperatures.

3.Are copper windings better than aluminum windings?

Copper windings provide better conductivity, stronger overload capability, and longer service life, making them suitable for demanding industrial applications.

4.Can Guangbian provide customized transformer solutions?

Yes. Guangbian can customize voltage, capacity, frequency, impedance, and other specifications according to project requirements.

5.What international standards does the transformer comply with?

This transformer is manufactured according to IEC60076 standards.