Transformers / Technical supply

In-Tank On-Load Tap Changer

Oil-immersed in-tank OLTC for regulating transformer output without interrupting supply.

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Product overview

Built around the project specification

An on-load tap changer moves the transformer between tap positions while it is still energised, so secondary voltage can be held steady as load and network conditions move through the day. The in-tank type mounts inside the transformer tank, with the selector column carrying the tap contacts and the diverter switch making and breaking the current.

Key features

Regulation without interrupting supply
Selector column carrying the tap contacts
Oil-immersed in-tank construction
Driven by a motor drive unit and control

Applications

Power transformers on regulated networks
Substations with wide daily load swings
Generator step-up duty
Industrial supplies needing stable secondary voltage

Specifications

Type: In-tank on-load tap changer
Mounting: Inside the transformer tank
Principal: Huaming Power Equipment Singapore Pte Ltd
Appointment: Authorised representation for Myanmar

Technical documents

Documentation for procurement and review

Available catalogues, datasheets, manuals, and group certificates are kept in the document library. Final ratings are confirmed against the project specification.

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