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110 KV - 25000 KVA Power Distribution Transformer Overload 3 Phase Power Transformer

Good quality Oil Immersed Transformer for sales
Good quality Oil Immersed Transformer for sales
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110 KV - 25000 KVA Power Distribution Transformer Overload 3 Phase Power Transformer

China 110 KV - 25000 KVA Power Distribution Transformer Overload 3 Phase Power Transformer supplier

Large Image :  110 KV - 25000 KVA Power Distribution Transformer Overload 3 Phase Power Transformer

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 - 25000kVA , 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


Carry out the following measurements after checking and before oiling

  • Measure the voltage rate of every tap.
  • Measure the DC resistance of every winding.
  • Measure insulation resistance (when assuring, the temperature must not be less than 10℃, use 2500V insulation meter, and make all the other windings being earthing.)


  • After the body checking, re-install the upper tank, bushings and tap-changer, etc. and pay special attention to the correstness of them. After sealing the tank, the transformer may be oiled, and ta this time, the oil is only required to immerge the upper yoke, usually about 200 mm to the cover, and the oil injected should pass all the test.
  • Generally, the quality of the oil should meet the following parameters
    --breakdown voltage is not less than 50kV
    --weakly water is not more than 20ppm.
    --dielectric loss factor (90℃) is less than 1%.


110 KV - 25000 KVA Power Distribution Transformer Overload 3 Phase Power Transformer

Contact Details
Pearl Electric Co.,Ltd.

Contact Person: Sandy

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