Gis Gas-Insulated Voltage Transformer/ Transformer Parts

Introduction to Structure

Voltage transformer matched with GIS is used for SF6 close combined apparatus; it is connected between the 

phase and ground. It uses SF6 gas as main insulation, and uses polyester film, which is used for interlayer

insulation, as additional insulation.

Main components of transformer

There are lifting blocks, a ground terminal, a nameplate, an instruction plate and a secondary terminal box on

the metal shell. The shell body is formed by welding steel plates and hot galvanizing, all connecting bolts uses

stainless standard parts, they can work in outdoor place for long time, and do not rust forever. A metal rupture

disc is installed on the base. If a high energy discharge occurs in it, the rupture disc will break to relief pressure,

so the safety of product is improved.

Main body is installed in the shell, high voltage electrode and low voltage shielded plate use aluminum plates,

which are rotated and pressed to form and carried out polishing treatment. Optimal Electrode shielded structure

improves internal and external field distribution of the product. It has an excellent insulation property. Partial

discharge test is carried out under power frequency test voltage.

High voltage coil uses single-staged tower structure, so it has a good shock resistant performance. Use

imported polyester films and high strength enameled wires, so it has high insulation strength. Use imported

automatic winding equipment to complete the wire winding and the wrapping of interlayer insulation

automatically according to entered instructions.

It can be designed and made with three coils (one primary coil, one secondary coil and one residual voltage

coil) or four coils (one primary coil, two secondary coils and one residual voltage coil) according to the

requirement of customer.

Disc insulator is used as the partition between the gas chamber of transformer and that of composite apparatus.

Transformer and composite apparatus can have SF6 gas with different pressure. The connection between high

voltage conductor and high voltage electrode on main body uses elastic structure.

Leading wire of secondary coil and leading wire of ground terminal of primary coil are connected with Phoenix

special terminal in the secondary terminal box via the terminal block cast as a whole with epoxy on the shell. It is

more convenient for operations such as plug-in, pull-out and wiring etc. The sealing performance meets the

requirement of IP55.

The transformer can be installed horizontally or vertically.

Company Introduction

NingboVille Enterprise Co.,Ltd.is a combination of Transformer R&D center, production, sales and
after sales service,possesses of strong technical strength andexcellent manufacturing equipments, as
well as modern Office facilities. It specially produces large scale power transformer and industrial
transformers of high quality and reliability. A large share of its resources are devoted to research and
development of industrial and special transformers and reactors for any special application,such as the 
iron and steel and electrometallurgical industries.The company main working is suppling,engineering,
designing,manufacturing, executing, and commissioning for transformer .

Why Choose Us

FIRST-CLASS PROCESSING AND TEST EQUIPMENT

We have more than 500 sets of sophisticated, advance production and test equipments, complete and perfect processing 
equipments, and scientific and rational processing technology, which guarantee first-class products, Authorized by the
Bureau of Zhejiang Technology Supervision, Quzhou Fangyuan Inspection Company of Power Transmission and
Transformation Equipment, whick is based on our testing center, undertakes the quality inspection of the industry in our
province, this is a solid guarantee for our excellent product quality.

BEAUTIFUL ENVIRONMENT

We are confident that good products come from good personnel, and good environment makes qualified personnel. The

company is committed to creating a garden-like working environment for employees. We have green belts, modern

standardized workshops and well-planned parks where we sow our youth; we work hard, so we are harvesting the future.

With the first-class quality products, reasonable price and excellent after-sale services.product not only best-selling all

over the country,but also in the international market have higher credit, such as Thailand, Vietnam, Myanmar, Indonesia,

alaysia,Philippines, Ethiopia and Nigeria, Saxonstan, Uzbekistan, Korea, Turkey, Sudan, Iran etc. especially in the steel

enterprises, VILLE production of transformers already have high reputation.

Our Services

FAQ

Our advantages:

Quality Assurance

–From the very beginning, VILLE ensures quality in every step to achieve the best quality.

 Experience Sharing

–With more than 30 years’ experience in power industry, VILLE brings you an optimized solution.

 Global Service

–Wherever you are, VILLE global network will support and provide you with value.

 Quick Response

–In response to your needs without delay, VILLE  knows the value of your time.

Thanks for choosing VILLE as your reliable partner and please trust both
of us will create a brilliant future!

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