Products · Transformers

Fully Sealed Corrugated Tank Distribution Transformer

Oil-immersed distribution transformer with a fully sealed corrugated tank for maintenance-free operation in distribution networks.

Overview

A fully sealed, corrugated-tank oil-immersed distribution transformer. The corrugated tank wall acts as an integral radiator and expansion element, removing the need for a separate conservator tank — a common configuration for maintenance-free distribution deployment.

Sourced through our manufacturing network and reviewed by our technical team against your capacity, voltage ratio and site requirement before quotation.

Technical Specifications

Cooling method: ONAN (oil natural, air natural)

Tank type: fully sealed, corrugated fin wall

Tap changer: off-load, confirmed per project

Rated capacity, voltage ratio and vector group: confirmed per project

Insulation level and impedance: confirmed per project

Installation: outdoor-rated

Capacity, voltage ratio, vector group and impedance are confirmed against your project's specification before quotation — available upon project requirement.

Applicable Standards

Can be supplied and tested in accordance with applicable IEC, IEEE/ANSI, CSA, GOST and destination-market requirements, subject to manufacturing partner and confirmed at quotation stage.

Customization Options

Capacity, voltage ratio, vector group, bushing configuration and accessory fitment (temperature gauge, oil level gauge, pressure relief device) can be adapted through our manufacturing partner — confirmed per project.

Applications

Utility Distribution

Step-down transformer for local distribution feeder networks.

Industrial Sites

Site power distribution for factories and industrial parks.

Commercial Buildings

Distribution transformer for outdoor commercial installations.

Rural Electrification

Distribution equipment for grid-extension and rural electrification projects.

Drawings / System Diagrams

Drawings & System Diagrams

Outline drawings and single-line diagrams available upon request during technical review

Testing & Inspection

Routine tests, factory acceptance testing and third-party inspection can be coordinated with the manufacturing partner, available upon project requirement. See Quality Control.

Available Documentation

Test reports, certificates and outline drawings are compiled per order and depend on the manufacturing partner — confirmed at quotation stage.

FAQ

Frequently Asked Questions

What capacity range is available?

Distribution transformer capacity is matched to your project requirement through our manufacturing network — send us your load requirement and we'll confirm available options.

Is this transformer maintenance-free?

The fully sealed corrugated-tank design removes the need for a separate conservator tank and reduces routine oil-level maintenance, though periodic inspection is still recommended.

Request a Quote for This Product

Tell us your capacity, voltage ratio and site requirement and our engineering team will follow up.

Request a Technical Proposal