Transformers / Technical supply

On-Load Power Transformer (OLTC)

Conservator-type power transformer with on-load tap changer, 33/66 kV class, up to 30,000 kVA.

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Product overview

Built around the project specification

A three-phase, 50 Hz conservator-type power transformer fitted with an on-load tap changer for voltage regulation under load without interrupting supply. It covers ratings up to 30,000 kVA with 33 kV and 66 kV primaries and secondaries including 11/6.6 kV, 33/11 kV and 400/230 V, targeting high full-load efficiency.

Key features

On-load tap changer under load
Conservator-type oil-filled
33 kV & 66 kV classes
Up to 30,000 kVA, high efficiency

Applications

Grid & utility substations
Industrial step-down duty
Networks with fluctuating load
33/66 kV interconnection

Specifications

Configuration: On-load tap changer under load
Ratings: Conservator-type oil-filled
Construction: 33 kV & 66 kV classes
Technical detail: Up to 30,000 kVA, high efficiency

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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