Power Transformers (up to 110 kV)

50 MVA Solar Grid-Connection Power Transformer, 110–230 kV Class

Rated at 50 MVA, this three-phase oil-immersed transformer steps 110–230 kV down to 20, 35 or 66 kV, purpose-built as a step-up/step-down unit for large…

Technical specifications

Technical specifications of 50 MVA Solar Grid-Connection Power Transformer, 110–230 kV Class
ParameterValue
Product TypeThree-Phase Oil-Immersed Power Transformer
Rated Capacity50 MVA
Input Voltage (HV)110 / 230 kV
Output Voltage (LV)20 / 35 / 66 kV
Frequency50 / 60 Hz
PhaseThree
Winding MaterialCopper / Aluminium
Vector GroupDyn11 / Yyn0
CoolingONAN / ONAF (oil-immersed, radiator)
StandardIEC 60076 / GB
CertificationIEC 60076, ISO9001, ISO14001, CE, CQC
PackingWooden Case

Figures shown reflect the supplied product data. Exact dimensions, materials, finish and packaging are confirmed at sample approval and order confirmation.

Why buyers choose it

  • 50 MVA rating spans the 110–230 kV transmission class for solar grid connection
  • Sealed oil-immersed tank with radiator cooling and conservator
  • Dyn11 / Yyn0 vector groups fit substation single-line diagrams
  • Optimized specifically for solar-PV step-up and utility interconnection
  • Certified IEC 60076, ISO9001, ISO14001, CE, CQC

Standards & certification

Designed and tested to IEC 60076 / 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

Rated at 50 MVA, this three-phase oil-immersed transformer steps 110–230 kV down to 20, 35 or 66 kV, purpose-built as a step-up/step-down unit for large solar-PV plants and utility substations. Manufactured to IEC 60076 with a sealed steel tank, radiator cooling and a conservator oil-expansion system, it provides efficient and dependable transformation for connecting renewable generation to the grid. Windings are offered in copper or aluminium.

Design & Construction

The tank carries high-voltage porcelain bushings, a top-mounted conservator for oil expansion, side radiator banks, and a cabinet for monitoring and protective equipment. Purpose-built for solar-PV interconnection, the oil-immersed design maintains efficient cooling and stable insulation for dependable transmission-class performance.

Applications

Fits solar-PV and other renewable-energy plants, utility and industrial substations, and transmission/distribution networks needing 110–230-kV-class transformation.

Customisation Options

Capacity, HV/LV voltage, vector group, tap-changer type, cooling class and fittings can be matched to a project's single-line requirements.

Ordering Information

  • Selling Unit: Single item
  • Packing: Wooden Case
  • Standards: IEC 60076 / GB; certified ISO9001, ISO14001, CE, CQC

Product details in pictures

50 MVA Solar Grid-Connection Power Transformer, 110–230 kV Class — detail 1
50 MVA Solar Grid-Connection Power Transformer, 110–230 kV Class — detail 2
50 MVA Solar Grid-Connection Power Transformer, 110–230 kV Class — detail 3
50 MVA Solar Grid-Connection Power Transformer, 110–230 kV Class — detail 4

Frequently asked questions

What is the rated capacity of the 50 MVA Solar Grid-Connection Power Transformer, 110–230 kV Class?

The rated capacity is 50 MVA, with an input voltage of 110 / 230 kV. Other ratings in the same series are quoted on request.

What are the main advantages of this power transformer?

50 MVA rating spans the 110–230 kV transmission class for solar grid connection; Sealed oil-immersed tank with radiator cooling and conservator; Dyn11 / Yyn0 vector groups fit substation single-line diagrams.

Can this product be customised to my specification?

Capacity, HV/LV voltage, vector group, tap-changer type, cooling class and fittings can be matched to a project's single-line requirements.

Which standards and certifications apply?

Designed and tested to IEC 60076 / 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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