Oil Immersed Transformer

Up to 44 kV Unit Substation Transformer

A unit-substation transformer platform for urban, commercial, industrial and renewable-integration projects. Define the adjoining equipment and connection scope.

Capacity range
Up to 10,000 kVA
Voltage class
Up to 44 kV
Up to 44 kV Unit Substation Transformer
12Product image for reference. Final layout varies with the selected configuration.

Overview

Explore the configuration.

Review the transformer together with the incoming and outgoing assemblies. Bus or cable connections, enclosure interfaces and the single-line diagram determine how it fits the substation; a transformer enquiry does not by itself include all switchgear.

Up to 44 kV Unit Substation Transformer
Select 1, 2 or 3 to explore the configuration. Markers indicate discussion areas, not an assembly drawing.

Connections

Start with the network voltages and connection arrangement. Review the terminal or cable interfaces against your system and project drawing.

Primary Voltage
10 / 11 / 20 / 22 / 33 / 35 / 44 kV
Secondary Voltage
230 / 240 / 400 / 415 / 480 / 600 / 690 V
View the related specifications

Insulation & cooling

Review the insulating liquid and cooling arrangement for the duty. Confirm the compatible options, installation clearances and liquid containment in the project design.

Cooling
ONAN / ONAF / KNAN / KNAF
Insulation class
Class A
View the related specifications

Installation

Plan the footprint, access and cable routes using the approved outline drawing. Share the installation environment so the mechanical interfaces can be reviewed.

IP class
IP54 (enclosure)
Environment
Outdoor, -25°C to +40°C
View the related specifications

Specifications

Ratings & configuration

Listed options describe the product range. Final ratings, compatible combinations and performance are confirmed in the approved project datasheet.

Capacity rangeUp to 10,000 kVA
Voltage classUp to 44 kV
Frequency50 / 60 Hz
Tap Range±2 × 2.5%
Vector GroupDyn11
Primary Voltage10 / 11 / 20 / 22 / 33 / 35 / 44 kV
Secondary Voltage230 / 240 / 400 / 415 / 480 / 600 / 690 V
CoolingONAN / ONAF / KNAN / KNAF
IP classIP54 (enclosure)
Oil typeMineral oil / FR3
EnvironmentOutdoor, -25°C to +40°C
Core materialCold-rolled grain-oriented silicon steel
Insulation classClass A

Define the details together.

  • Transformer duty
    Primary and secondary service, capacity, frequency, impedance and tap requirements.
  • Equipment interfaces
    Incoming and outgoing connection arrangement, adjoining switchgear, terminal positions, footprint and maintenance access.
  • Scope & drawings
    Single-line diagram, equipment layout, connection drawings and a clear boundary for transformer and switchgear supply.

Compare the range

Standards & compliance
GB / IEC / IEEE / UL / CE / ASTA
Applicable standards and required certificates or test reports must be agreed for the specific project. A standard listed here is not a certification claim.

Listed options describe the product range. Final ratings, compatible combinations and performance are confirmed in the approved project datasheet.

Manufacturing

A closer look at our factory.

Explore our manufacturing and test equipment. The production route and acceptance tests are agreed for each configuration.

Assembly rack
01

Assembly rack

Horizontal winding machine 1
02

Horizontal winding machine 1

Power-frequency withstand test set
03

Power-frequency withstand test set

Images from our factory gallery. Equipment shown does not imply every product uses the same manufacturing process.

Explore the Factory

Questions

Before you enquire

Talk to an engineer
Does this enquiry include the complete substation?

Only the equipment explicitly listed in the quotation is included. Identify the required transformer, switchgear, protection, enclosure and connections so the supply boundary can be agreed.

What do you need to prepare a quotation?

Start with your email and a short description. Tell us what you want to power, replace or purchase. You can send known ratings or a drawing, but you do not need to know every specification.

How are lead time, warranty and delivery agreed?

These are defined in the project quotation after reviewing the technical scope, quantity, destination and document requirements.

Talk to an engineer

Tell us what you need.

A short description is enough. We’ll help clarify the specifications.

Up to 44 kV Unit Substation Transformer

Add company, location or drawings (optional)
PDF, DWG, DXF · up to 3 files, 20 MB each

Completing security check…

Protected by Cloudflare Turnstile

Our engineers will review your inquiry and follow up with next steps.