Product overview:
The autotransformer is made according to the self inductance phenomenon in electromagnetic induction,it
mainly regulates the voltage level.A self-transformer is a transformer that is the primary and secondary
windings of the same winding.Accroding to the structure can be divided into pressure adjustable and fixed.
Generally used for mechanical and electrical speed occasions,which is characterized by the difference between
the one or two voltage is not large,is now widely used frequency control.
The core of the product is cold rolled oriented high quality silicon steel sheet,and the coil structure adopts a
cylinder,an elliptical cylinder and a rectangular cylinder.Small size,excellent performance,safety and reliability.
Application area:
Widely used in industrial and mining enterprises and the use of import and export equipment,etc.
Product features:
Since the calculation capacity of the self coupling transformer is less than the rated capacity,the main dimension
of the self coupling transformer are smaller in the same rated capacity,therebe reducing the cost.
The reduction of the effective material causes the copper loss and the iron loss to be correspondingly reduced,
so the efficiency of the self coupling transformer is high.
Since the short circuit impedance of the self coupling transformer is smaller than that of the double winding
transformer,the voltage change rate is small,but the short circuit current is larger.
Technical parameter:
| Rated frequency |
50/60(HZ) |
| Efficiency(ETA)( η) |
99% |
| Voltage ratio |
400/220V |
| Cooling |
Natural cooling |
| Moisture proof way |
Open type |
| Core structure |
Shell type |
| Cooling form |
dry |
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 sales team
Thanks for choosing VILLE as your reliable partner and
please trust both of us will create a brilliant future!
Audited Supplier 
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