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

Basic Information
Place of Origin: China
Brand Name: Pearl Electric
Certification: KEMA, CE, CCC, ISO9001
Model Number: PEO-S, S9~13,SZ11-M,SZ11
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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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
High Light:

step up power transformer


electrical power transformer


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 device Check content Descriptions
Air relay Oil flow direction Arrow 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 glass Clean glass
On-load switch protection relay Oil flow direction The arrow pointing to the direction of oil conservator
Function checking Comply with the inspection function test button with the “Instruction of the gas relay”
Pressure release valve Sign poles Sign poles shall not extend out
Controlling switch -Reset controlling switch operation, tripping contacts in the “open” position.
Dehydrating breather
--on-load switch
Silica gel Silica gel must be pure white or blue
Oil seal Check whether transformer breathing through the oil sealing place (bubbles are visible).
Terminal box Current transformer terminal If the current transformer is no load, terminal connection must be closed.


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








Contact Details

Phone Number : 86-020-22626603

WhatsApp : +008618826241798