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35kV - 5000kVA 3 Phase Power Distribution Two Winding Non - Excitation Regulating

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Pearl Electric Co.,Ltd.
City: Guangzhou
Province/State: Guangdong
Country/Region: China
Tel: 86-020-2262-6605
Contact Person:
Ms Jenny Tan

35kV - 5000kVA 3 Phase Power Distribution Two Winding Non - Excitation Regulating

Brand Name : Pearl Electric Co.,Ltd.
Model Number : PEO-S, S9~13,SZ11-M,SZ11
Certification : KEMA, CE, CCC, ISO9001
Place of Origin : China
MOQ : 1 unit
Price : USD/RMB
Payment Terms : T/T, L/C
Supply Ability : 2.5 Million KVA/Year
Delivery Time : 45-50days ex-work
Packaging Details : Seaworthy wooden packing
Capacity : 4000~31500kVA or Customized
Rated H. V. : 33kv or Customized
Rated L. V. : 11kV or Customized
Vector Group : Dyn11 or Customized
Impedence : 8-11% or Customized
Cooling : ONAN / ONAF or Customized
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35kV - 5000kVA , 3 phases , Double-column , Power Distribution Transformer , Non-exitation regulating transformer​

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

35 kV class 3-phase two-winding power transformer

By tap-changing

35 kV class on-load tap-changing power transformer

35 kV 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:

Protective deviceCheck contentDescriptions
Air relayOil flow directionArrow pointing to the direction of conservator.
Functions of floater and contact

-- In accordance with “the application instruction of the air relay”

-- Removed transport lock on air relay (rubber clasps, in the test connection tablets sealed cap)

Inspection glassClean glass
On-load switch protection relayOil flow directionThe arrow pointing to the direction of oil conservator
Function checkingComply with the inspection function test button with the “Instruction of the gas relay”
Pressure release valveSign polesSign poles shall not extend out
Controlling switch-Reset controlling switch operation, tripping contacts in the “open” position.
Dehydrating breather
--on-load switch
Silica gelSilica gel must be pure white or blue
Oil sealCheck whether transformer breathing through the oil sealing place (bubbles are visible).
Terminal boxCurrent transformer terminalIf the current transformer is no load, terminal connection must be closed.

Product Tags:

electrical power transformer


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