Yawei 20kv 30~2500kVA Epoxy-Resin Insulation Dry-Type Transformer

Box coil:
The low voltage winding adopts the whole section of copper foil, which is wound on the special low-voltage foil winding machine with the F-grade insulation. The foil coil solves the outstanding problems such as low voltage, high current coil winding, high short-circuit stress, unbalanced ampere turns, poor heat dissipation effect, windingspiral angle, unstable manual welding quality and so on. At the same tim-e, the winding ends of our company aresealed with resin, cured and formed, moisture-proof and antifouling. The lead copper bar is automatically welded byargon arc welding.

Temperature control device:
The transformer adopts the BWDK series signal thermometer. The temperature measuring element is embedded in the upper half of the low-voltage coil, which can automatically detect and display the respective working temperature of the phase coil, and has the function of over temperature alarm and trip.

Normal operation condition 
    · Ambient temperature: Maximum +40ºC
                                         Minimum -25ºC
    · Relative humidity: At 25ºC, not higher than 95% for daily average humidity and not higher than 90% for monthly average ambient temperature.
    · Altitude: less than 1000 meters.
    · Seismic level: less than 3m/s² at horizontal direction and less than 1.5m/s² at vertical direction.
    · Installation environment: No obvious and heavy pollution, no explosive and corrosive gas and dust, with good air ventilation and no severe vibration and shock.
(Note: if the application environment is different from the above standard service conditions, please contact us for customized designs.)

Yawei Group has more than 50 engineers and technicians, more than 1000 employees,covering an area of 12 million square meters, the annual sales up to 600 million yuan medium-sized transformer enterprise. The enterprise has received Jiangsu quality trustworthy enterprise, Nantong high-tech enterprise, Nantong quality, measuring, equipment, environmental protection, 'The contract, the word ' advanced collectives, Nantong civilized unit, title.Hai'an County Industrial Growth Enterprises and other honors.
The company had relatively strong production ability and high efficiency of the marketing team. Products include 110KV, 220KV large-scale high voltage power transformer and various dry-type transformer, oil-immersed transformer, amorphous alloy transformer, preinstalled type substation, solar/wind transformer, on-load regulating transformer, underground transformer, high over-load power transformer, dust removal transformer, marine transformer, SVG connection transformer, SVR automatic voltage regulator, transformer with wound core, Scott transformer, ZP (T)S type/APSC type/ZPSG-W type multi-winding phase shift rectifier transformer and all kind of special transformers such as specification compact substation, autoclave transformer, rectifier transformer, mining transformer. All products have passed national transformer quality supervision and inspection center and state power company Wuhan high voltage institute of routine, type, special test.The enterprise has passed the IS09001:2000 quality system certification. Jiangsu enterprises measurement authentication, meanwhile, 10KV, 35KV grade power transformer, compact substation have obtained International Electrotechnical Commission IEC authentication. Product sales covering the national market, also exported to Australia, New Zealand, India, Madagascar, Vietnam, Cambodia, Laos and other counties and regions. At the same time, as a group company, we also produce and sell transformer-related materials such as electromagnetic wires, insulation materials and so on.

For many years,our company on the reliable product quality and perfect after-sale service,obtained users' trust and praise.The products have been widely used in power system.In the future,Yawei will make persistent efforts in order to provide better products and services for customers.

Professional Team

Professional Equipment

Part of the Partner

1.Why choose us?
    · We have more than 20 years to produce different kinds of tansformers.
    · Our factory continue to insist to customers oriented and seek development of technology and science
    · Our products have high quality and the deep love of our customers
    · Our products have passed the ISO9001:2000 quality system certification .
    · We have a strong supply chain and after-sale service.