Three Phase Double Winding 20kv Distribution Transformers

Model NO.: S11-M-20/30~2500KVA


Phase: Three


Cooling Method: Oil-immersed Type Transformer


Rated Voltage: 20kv


Trademark: ville


Origin: China




Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio


Core: Core-type Transformer


Winding Type: Two-winding Transformer


Certificate: IEC60076,GB1094,GB/T6451,GB/T25289-2010 Standards


Specification: IEC


HS Code: 85


20kv three phase double winding distribution transformer with off load tap changer

It adopts advanced electromagnetic design software, and meets IEC60076, GB1094, GB/T6451, GB/T25289-2010 standards, without such device like conservator, air breather...., so it ensures that the transformer oil is not in contact with air, improving the anti-oxidation capacity of the transformer oil and delaying its aging. The core is made of high quality cold-rolled grain-oriented silicon steel sheet, with laminated structure miter joint, so as to reduce the no-load losses and no-load current. The tank is a corrugated type, the corrugated fins can swell and shrink with the change of transformer oil, so that the pressure can be maintained inside the tank, increase its reliablility and anti-corrosion capacity. The coil of distribution transformer, wound by high intensity enameled wrapped conductors with good ampere-turn balance and reasonable insulation structure. Has a strong short-circuit withstand capacity. The distribution transformer adopts the free-untanking structure. With sealing material parts made of high quality acrylic rubber, it can effectively prevent againest ligh-aging and heat-aging.

Capacity: 30~2500kva

Voltage: 20± 5% or ± 2x2.5% LV: 0.4KV

Vender group: Yyn0 or Dyn11

Impedance: 5.5%, 6%

The loss value also apply to high voltage double voltage 20(10) three phase transformers.

Contact us if you need more details on Transformer. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Electronic Transformer、Electric Transformer. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Power Transformer > Oil Immersed Distribution Transformer