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Oil-Immersed Transformers

Oil-immersed transformers engineered for utility, industrial and infrastructure power distribution applications, with project-specific voltage, capacity, impedance and connection arrangements.

Available in sealed-tank and conservator-type configurations, with transformer design, accessories, protection and monitoring arrangements configured according to project requirements and applicable IEC standards.

Key Ratings

Primary Rated Voltage

Up to 35 kV
Transformer Capacity

100 kVA – 10 MVA
Phase

Three-Phase
Cooling Method

ONAN
Rated Frequency

50 / 60 Hz

Typical Configurations

01
Sealed-Tank Transformer

Hermetically sealed oil-immersed transformer configuration designed to limit contact between insulating oil and the external atmosphere.
02
Conservator-Type Transformer

Oil-immersed transformer equipped with a conservator system for oil volume compensation and project-specific protection and monitoring arrangements.
03
Project-Specific Configuration

Transformer ratings, connection arrangements, accessories, protection and monitoring arrangements configured according to project requirements.

Technical Specifications

Parameter	Specification
Primary Rated Voltage	Up to 35 kV
Secondary Voltage	0.4 / 0.415 / 6.6 / 10 / 11 kV / Other Voltages on Request
Transformer Capacity	100 kVA – 10 MVA
Rated Frequency	50 / 60 Hz
Phase	Three-Phase
Cooling Method	ONAN / ONAF
Insulating Liquid	Mineral Oil
Vector Group	Dyn11 / Yyn0 / Other Vector Groups on Request
Tap Arrangement	Off-Circuit Tap Changer / Other Tap Arrangements on Request
Impedance Voltage	According to Transformer Rating & Project Requirements
Insulation Level	According to Rated Voltage & Applicable Standards
Temperature Rise	According to Applicable Standards / Project Requirements
Loss Requirements	According to Project Specifications
Tank Configuration	Sealed / Conservator Type
Installation	Indoor / Outdoor
Applicable Standards	IEC 60076 Series

Standards, Testing & Documentation

IEC-Oriented Design

Designed according to applicable parts of the IEC 60076 series and project specifications.

Factory Routine Testing

Routine tests are carried out before shipment according to applicable parts of the IEC 60076 series and project specifications.

Project Documentation

Technical datasheets, drawings and test records can be provided for project review.

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Share your system voltage, transformer capacity, primary and secondary voltage, installation conditions and project specifications with our engineering team.

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Oil-Immersed Transformers

Key Ratings

Primary Rated Voltage

Transformer Capacity

Phase

Cooling Method

Rated Frequency

Typical Configurations

Sealed-Tank Transformer

Conservator-Type Transformer

Project-Specific Configuration

Technical Specifications

Standards, Testing & Documentation

IEC-Oriented Design

Factory Routine Testing

Project Documentation

Discuss Your Transformer Requirements

COMPANY

PRODUCTS

INDUSTRIES

Need a quote for your project?

Oil-Immersed Transformers

Key Ratings

Primary Rated Voltage

Transformer Capacity

Phase

Cooling Method

Rated Frequency

Typical Configurations

Sealed-Tank Transformer

Conservator-Type Transformer

Project-Specific Configuration

Technical Specifications

Standards, Testing & Documentation

IEC-Oriented Design

Factory Routine Testing

Project Documentation

Discuss Your Transformer Requirements

COMPANY

PRODUCTS

INDUSTRIES

Need a quote for your project?

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