Three Phase Double Winding 20kv Distribution Transformers

Product Specifications

Prod Model:	S11-M-20/30~2500KVA
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Phase:	Three
Coil:	Core-type Transformer
Cooling Method:	Oil-immersed Type Transformer
Winding Type:	Two-winding Transformer
Application:	Audio

Product Description

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.

Our Transformer Product Range
S10 S11 S13 oil type transformer: 50-31500KVA, 6-33KV, 50/60HZ, off load tape changer
SZ10 SZ11 oil type transformer: 50-31500KVA, 6-33KV, 50/60HZ, on load tape changer
SCB9, SCB11 dry type transformer: F grade insulation, 50-3150KVA, 6-33KV, 50/60HZ
SCBH15 11KV amorphous alloy dry type transformer: F grade insulation
SGB10 SGB11 11KV dry type transformer: H grade insulation
SBH15 Oil type amorphous alloy transformer 11KV Level
S13-M 1full sealed oil immersed power transformer
Dry type reactor
S(B)H15-16 Amorphous Transformer
BKSC(G)Dry-type shunt reactor
QKSC Dry Startup reactor
Smoothing reactors

KD-LK-type low-pressure filter reactor
Cast resin dry type earthing transformer
Dry type rectifier transformer
Rectifier transformer
Furnace transformer
Note: We can design and manufacture special transformer as customers' requirements.
Ordering Instruction: 1. Product model; 2. Rated capacity; 3. Voltage range; 4. Regulation range; 5. Frequency; 6. Connection symbol; 7. Technical specs for customized transformer.