Cast-Resin Dry-Type Transformers

Three-Phase Cast-Resin Dry-Type Transformer — 100–2500 kVA, 11/13.8 kV, ISO9001

Built for indoor and enclosed distribution where safety and low upkeep matter, this three-phase epoxy cast-resin dry-type transformer skips insulating oil…

Technical specifications

Technical specifications of Three-Phase Cast-Resin Dry-Type Transformer — 100–2500 kVA, 11/13.8 kV, ISO9001
ParameterValue
TypeThree-phase cast-resin dry-type transformer
Rated capacity100 / 150 / 500 / 1500 / 2000 / 2500 kVA
Primary voltage11 kV / 13.8 kV
Secondary voltage380 V
Frequency50 Hz / 60 Hz
PhaseThree phase
Vector groupDyn11 / Yyn0
Winding materialCopper / Aluminium
InsulationEpoxy cast resin
StandardsISO9001 / IEC / GB
Warranty2 years

Why buyers choose it

  • Oil-free, cast-resin construction for fire safety and minimal maintenance
  • A broad capacity lineup: 100 / 150 / 500 / 1500 / 2000 / 2500 kVA
  • Steps 11 kV or 13.8 kV primary voltage down to a 380 V secondary at 50/60 Hz
  • Strong resistance to both moisture and short-circuit stress
  • ISO9001-certified production built to IEC/GB standards

Standards & certification

Designed and tested to IEC 60076 / IEC 62271. 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

Built for indoor and enclosed distribution where safety and low upkeep matter, this three-phase epoxy cast-resin dry-type transformer skips insulating oil entirely, giving it strong fire resistance and moisture protection well suited to buildings, plants and infrastructure projects. It is made to IEC/GB standards under ISO9001 certification, spans a 100–2500 kVA range and can be ordered with copper or aluminium windings.

Design & Construction

The three coils are cast in epoxy resin, giving oil-free insulation along with solid mechanical and short-circuit strength. Connection is straightforward thanks to HV bushing terminals with color-coded leads and low-voltage copper bar terminals, and the rollered steel base frame simplifies moving the unit into place. Cooling fans with temperature control are available as an option to support heavier loads, and the unit can be delivered either open-frame or inside a protective metal cabinet.

Applications

Commercial buildings, hospitals, data centers, factories and infrastructure projects where fire safety and minimal upkeep call for an oil-free indoor transformer.

Customisation Options

Project teams can specify capacity, voltage ratio, vector group, winding material, enclosure style (open frame or cabinet), cooling fans and temperature monitoring.

Ordering Information

When requesting a quotation, please share the required capacity (kVA), primary/secondary voltage, frequency, vector group and installation conditions. OEM/ODM and project-based orders are welcome.


The product images shown are illustrative marketing renders; the transformer actually delivered is built to order against the confirmed specifications.

Product details in pictures

Three-Phase Cast-Resin Dry-Type Transformer — 100–2500 kVA, 11/13.8 kV, ISO9001 — detail 1
Three-Phase Cast-Resin Dry-Type Transformer — 100–2500 kVA, 11/13.8 kV, ISO9001 — detail 2
Three-Phase Cast-Resin Dry-Type Transformer — 100–2500 kVA, 11/13.8 kV, ISO9001 — detail 3
Three-Phase Cast-Resin Dry-Type Transformer — 100–2500 kVA, 11/13.8 kV, ISO9001 — detail 4

Frequently asked questions

What is the rated capacity of the Three-Phase Cast-Resin Dry-Type Transformer — 100–2500 kVA, 11/13.8 kV, ISO9001?

The rated capacity is 100 / 150 / 500 / 1500 / 2000 / 2500 kVA, with an input voltage of 11 kV / 13.8 kV. Other ratings in the same series are quoted on request.

What are the main advantages of this dry-type transformer?

Oil-free, cast-resin construction for fire safety and minimal maintenance; A broad capacity lineup: 100 / 150 / 500 / 1500 / 2000 / 2500 kVA; Steps 11 kV or 13.8 kV primary voltage down to a 380 V secondary at 50/60 Hz.

Can this product be customised to my specification?

Project teams can specify capacity, voltage ratio, vector group, winding material, enclosure style (open frame or cabinet), cooling fans and temperature monitoring.

Which standards and certifications apply?

Designed and tested to IEC 60076 / IEC 62271. 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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