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Industrial , 110kV - 20000 KVA , Power Transformer , Low Noise Two Winding

Good quality Oil Immersed Transformer for sales
Good quality Oil Immersed Transformer for sales
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Industrial , 110kV - 20000 KVA , Power Transformer , Low Noise Two Winding

China Industrial , 110kV - 20000 KVA , Power Transformer , Low Noise Two Winding supplier

Large Image :  Industrial , 110kV - 20000 KVA , Power Transformer , Low Noise Two Winding

Product Details:

Place of Origin: China
Brand Name: Pearl Electric Co.,Ltd.
Certification: KEMA, CE, CCC, ISO9001
Model Number: PEO-S, S9~13,SZ11-M,SZ11

Payment & Shipping Terms:

Minimum Order Quantity: 1 unit
Price: USD/RMB
Packaging Details: Seaworthy wooden packing
Delivery Time: 45-50days ex-work
Payment Terms: T/T, L/C
Supply Ability: 2.5 Million KVA/Year
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Detailed Product Description
Capacity: 6300~63000kVA Or Customized Rated H. V.: 110kv Or Customized
Rated L. V.: 33kV/11kV Or Customized Vector Group: Dyn11 Or Customized
Impedence: 8-10% Or Customized Cooling: ONAN / ONAF Or Customized


110kV - 20000kVA , Power Distribution Transformer , Three Phases , Power Transformer , Hight Capacity​


Product Advantages


The core is manufactured with high quality cold rolled grain-oriented silicon steel of high magnetic conductivity, and 45° mitring and steps overlapping structure is used for core production, enable the effectiveness of reducing no-load loss and no-load current.

HV winding:

HV winding is manufactured with high quality copper conductor, adopting optimized structure to improve electric distribution. Lightning impulse wave process is carried out for calculation and analysis, thus to improve transformer's anti-lightning impulse capability.


LV winding is manufactured with high quality foil conductor, so the ampere-turn balance is excellent and the transverse magnetic flux leakage is low. The anti-short circuit capability is thus greatly improved. Oil conduit is rationally designed in the windings to increase winding's heat dispersion surface, effectively reduce temperature and improve transformer's overload capability.




By winding number


110kV class 3-phase two-winding power transformer


By tap-changing


110kV class on-load tap-changing power transformer



110kV class off-load tap-changing power transformer



Insulation Structure:

The transformer adopts class-A insulation. The HV and LV windings are arranged in concentric way. Between the windings are oil-clapboard insulation structure built with paper cylinder and small oil conduit.


The tank conservator tank type with radiator fins. 

Executed Standards:


Body Check


The requirements of the climate and environment when body inspecting.

  • Relative humidity shall not exceed 80%.
  • Prevent dust, rain or snow from falling on the transformer body.
  • When draining oil or exhausting nitrogen gas for body checking, the body temperature should be higher than or equal to the ambient temperature, otherwise the transformer body should be heated until the body temperature is 10℃ or more than ℃ higher than the ambient temperature.
  • From the time of oil draining or nitrogen gas exhausting, the time that the body contact with air should not exceed the following:
    --dry weather (relative air humidity less than 65%) for 16 hours.
    --Humid weather (relative air humidity above 65% and below 75%) for 12 hours.

Body Inspection Item

  • check all body fasteners, nail pressure, insulate mat, and laminate plate, etc. whether there are unusual states, such as loosened.
  • Check whether the down-lines have deformed or loosened, or the insulated covers have been damaged, and whether the lead is connected firmly and reliably.
  • Check whether the contact point position on the moving contact and static contact of the tap-changer, the position shown on the tank cover and the position shown in the operating box are the same, and whether they are well contacted, and then measure the voltage rate on all the taps. Change the switch to the rated position after checking.
  • Observe whether the core has moved, and check its earthing situation.
  • Check whether there are dust or metal scrap attaching to transformer body, and whether there are rubbish or metal scrap under the tank or around the lower tank.
  • Check whether there is any thing left on the tank or body, and check the amount of all the instruments used for checking.



Industrial , 110kV - 20000 KVA , Power Transformer , Low Noise Two Winding

Contact Details
Pearl Electric Co.,Ltd.

Contact Person: Sandy

Tel: 86-020-22626603

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