Oil-Immersed Distribution Transformers

Energy-Saving 500–3500kVA 35kV/480V Three-Phase Oil-Immersed Transformer

Engineered for efficiency, this three-phase oil-immersed distribution transformer converts 35kV down to 480V and serves utility, industrial, and EV-charging…

Technical specifications

Technical specifications of Energy-Saving 500–3500kVA 35kV/480V Three-Phase Oil-Immersed Transformer
ParameterValue
Product TypeOil-Immersed Power Distribution Transformer
Rated Capacity500 kVA – 3500 kVA
Input Voltage35 kV
Output Voltage480 V
Frequency50 / 60 Hz
PhaseThree
Winding MaterialCopper / Aluminium
Vector GroupDyn11 / Yyn0 / Yd11 / YNd11 / Dyn5
FeatureEnergy Saving
StandardIEC / GB
CertificationUL, CE, ISO9001, EAC, ISO14001, ISO45001

These specifications reflect the product data supplied. Final dimensions, materials, colors, and packaging are confirmed at the sample and order stage.

Why buyers choose it

  • An energy-saving design covering the 500kVA–3500kVA range
  • Three-phase step-down from 35kV to 480V
  • A fully sealed tank with corrugated radiators for efficient cooling
  • Copper or aluminium windings with support for multiple vector groups
  • International certification: UL, CE, ISO9001, EAC, ISO14001, ISO45001

Standards & certification

Designed and tested to IEC / GB. Millenium production is certified to ISO 9001, ISO 14001 and ISO 45001; the product family carries CE (ECM), UDEM attestation and an EAC declaration of conformity. Every unit passes routine factory tests before dispatch.

Product details

Engineered for efficiency, this three-phase oil-immersed distribution transformer converts 35kV down to 480V and serves utility, industrial, and EV-charging applications. It spans a capacity range from 500kVA to 3500kVA, with copper or aluminium windings inside a fully sealed tank whose corrugated radiators keep operation efficient and reliable at 50Hz or 60Hz.

Design & Construction

  • A rectangular steel tank fitted with corrugated fin radiators
  • A horizontal cylindrical conservator tank for oil expansion
  • HV porcelain bushings and LV bushings mounted on the tank cover
  • A steel channel base that supports stable installation
  • Fully sealed construction that limits oil oxidation

Applications

This transformer fits utility substations, industrial power supply setups, EV charging stations, and distribution networks that call for energy-efficient 35kV step-down conversion.

Customisation Options

Capacity, voltage ratio, vector group, cooling configuration, and certification can be adapted to project needs, with copper or aluminium winding material available on request.

Ordering Information

When placing an order, please specify the rated capacity, primary/secondary voltage, frequency, vector group, and the applicable standard.

Product details in pictures

Energy-Saving 500–3500kVA 35kV/480V Three-Phase Oil-Immersed Transformer — detail 1
Energy-Saving 500–3500kVA 35kV/480V Three-Phase Oil-Immersed Transformer — detail 2
Energy-Saving 500–3500kVA 35kV/480V Three-Phase Oil-Immersed Transformer — detail 3
Energy-Saving 500–3500kVA 35kV/480V Three-Phase Oil-Immersed Transformer — detail 4

Frequently asked questions

What is the rated capacity of the Energy-Saving 500–3500kVA 35kV/480V Three-Phase Oil-Immersed Transformer?

The rated capacity is 500 kVA – 3500 kVA, with an input voltage of 35 kV. Other ratings in the same series are quoted on request.

What are the main advantages of this oil-immersed transformer?

An energy-saving design covering the 500kVA–3500kVA range; Three-phase step-down from 35kV to 480V; A fully sealed tank with corrugated radiators for efficient cooling.

Can this product be customised to my specification?

Capacity, voltage ratio, vector group, cooling configuration, and certification can be adapted to project needs, with copper or aluminium winding material available on request.

Which standards and certifications apply?

Designed and tested to IEC / GB. Millenium production is certified to ISO 9001, ISO 14001 and ISO 45001, and the product family carries CE (ECM), UDEM attestation and an EAC declaration of conformity.

Quotation

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