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oil immersed transformers
dry type transformer
underground mining transformer
Varelen Electric Co., Ltd

about us

Varelen Electric Co.,Ltd is technological innovation-based   enterprise with a long history, owning a manufacturing base in Changsha, hunan province, China. we specialize in manufacturing various kinds of transformer and substations for mines/ residential/ factories/ commerical buildings/ tunnels power supply.

We are focused on Intelligent, miniaturized, integrated design and we will continue to work hard to better our products and service. 



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product center

An innovative scientific and technological enterprise focusing on the research and development and production of electromagnetic components such as specialized intelligent integrated substations, transformers and reactors.

OUR PROJECT SOLUTIONS

Varelen provides custom solutions for renewable energy, power transmission, rail transit, marine, mining, paper industry, smart infrastructure. Energy-saving and environmentally friendly transformer solutions are ideal for customers.

Mining substation solutions

Mining substation solutions

Excellence in power supply technologies, high quality raw materials and offer customisation solution

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Exported Mine substation

Exported Mine substation

Substation can be designed to incorporate any size transformers with any combination of voltages

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Railway converter transformers-9MVA

Railway converter transformers-9MVA

9MVA Single phase 6 windings output converter transformers,conservator type power transformers,Dielectric Liquid FR3

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Solutions for Paper industry

Solutions for Paper industry

Integrated solutions for Paper industry, High perfomance and continous productivity for Paper, offering energy efficient solutions

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State grid - SGCC

State grid - SGCC

Energy saving, Easily adap to the grid, easy connection process,three-colum structure, silicon steel core material

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CRRC 10MVA dry type rectifier transformer

CRRC 10MVA dry type rectifier transformer

10.4mva dry type transformer is one of the biggest dry type rectifier transformer on the world,which weight is up to 25tons

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CRRC 4.8MVA dry type transformer

CRRC 4.8MVA dry type transformer

Customzied 4.8MVA dry type transforme, VPI dry-type transformer, copper windings,Low loss and high efficiency

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Charging Pile solutions

Charging Pile solutions

2000kva Dry type transformer for charging Pile in Hunan, China,safe and reliable, high insulation level H

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Multi-winding Rectifier transformer

Multi-winding Rectifier transformer

Characteristics Improved construction, compacted size, superior reliability C-class Dupont Nomex paper

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Energy saving solutions

Energy saving solutions

Intelligent control, integrated with enclosure, compact structure and high enviromental adapt ability

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news center

We will continue to strive to become an excellent innovative enterprise specialized in new high quality electromagnetic components and integrated transformer and distribution system and drive field. Create a professional, high quality "Varelen" electrical brand.

Magnetizing rush current

Magnetizing rush current

2022-08-08

When a transformer is first energized, a phenomenon called inrush current occurs. Although the inrush current is generally not as destructive as the fault current, the duration of the excitation inrus...
How to improve short circuit resistance of power transformer?

How to improve short circuit resistance of power transformer?

2022-07-20

Power transformer is mainly realized by power electronics technology, its basic principle is in the original power frequency signal through the power electronics circuit into high frequency signal, na...
What is oil immersed power transformer?

What is oil immersed power transformer?

2022-07-05

一， Definition and principle of transformerA transformer is a static electrical appliance that converts ac energy of one voltage class into AC energy of another voltage class of the same frequency by...
How do I configure the transformer capacity？

How do I configure the transformer capacity？

2022-05-18

In ac circuit, there are three concepts of electric power: active power, reactive power and apparent power. KVA stands for apparent power, which includes reactive power and active power. KW stands for...
The cooling type of Transformer?

The cooling type of Transformer?

2022-05-09

Dry Type Transformer is cooled by the following two methods given below:Air Natural (AN)By Air Natural method the generated heat in the transformer is cooled by the circulation of natural air. When th...
Future of power transformers

Future of power transformers

2022-02-16

Power transformers are the heart and soul of the grid, as they are responsible for maintaining power delivery from power plants and distribution lines connected to homes.Over the past few years, the d...
Varelen is committed to Sustainability

Varelen is committed to Sustainability

2022-02-10

Due to global climate change, As the global energy industry continues to transform, many of our customers are facing long-term disruptive change.The advance of digitisation, the need to decarbonise an...
New Energy Solutions

New Energy Solutions

2021-12-23

Medium voltage cast resin transformers can be used for different applications, such as power distribution, as converter solutions for industry, solar power plants and wind power plants.
Line Choke for converter in wind power

Line Choke for converter in wind power

2021-12-15

In the wind and solar markets, customer-specific solutions such as cast resin transformers /encapsulated transformers and line chokes are available.
Special transformer for Railways

Special transformer for Railways

2021-11-09

water cooling reactor solution will improve energy efficiency, reliability and ease of maintenance
Oil immersed transformer shipment by airplane

Oil immersed transformer shipment by airplane

2021-10-06

Based on the market, because professional, so be chosen, because of responsibility, so be trusted, because not afraid of difficulties, so we march forward.
Cast resin transformers for Power transmission

Cast resin transformers for Power transmission

2021-08-19

At present, the industrys demand for environmentally friendly electricity is gradually increasing, and dry-type transformers play a pivotal role in the process of power transmission.
Mining Projects

Mining Projects

2021-08-13

When adapting an individual solution for the mining industry, Varelens transformer products make your euipment flexible, safe, reliable, and more environmentally friendly
Rectifier equipment for Paper Industry

Rectifier equipment for Paper Industry

2021-08-03

Low loss, low noise, low partial discharge, low temperature rise and energy-saving
Whats the benifits of dry type transformer

Whats the benifits of dry type transformer

2021-04-28

The benefits of our dry type electrical transformers originate from both the design and materials used for the device’s constructions.

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Varelen Electric Co., Ltd

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