Source: https://tendernation.io/opportunities/01a13be4-2292-71ba-b175-7616bbee0941/fw-supply-and-install-primary-transformers-multi-site-0338

closed GB restricted procedure

# FW Supply and Install - Primary Transformers - Multi Site 0338

[Scottish Hydro Electric Power Distribution plc](https://tendernation.io/buyers/scottish-hydro-electric-power-distribution-plc)

Estimated value

Not stated

Published

15 Jul 2026

Deadline

Rolling deadline

## Who can bid

- Sets up a framework

    Winning a place does not guarantee work: contracts are awarded later as call-offs, and the list usually stays closed for years.

## About this tender

Scottish Hydro Electric Power Distribution plc and Southern Electric Power Distribution plc (SSEN) intends to establish a multi-supplier Framework Agreement for the supply, delivery to site, off-loading onto prepared foundations, installation, preparation for service and commissioning of medium power oil immersed three-phase double-wound primary transformers.

The transformers will operate at primary voltages of 33kV, 22kV and 11kV, with power ratings ranging from approximately 1.5MVA to 20/40MVA.

Each transformer shall be designed to operate as part of a parallel supply scheme and be capable of carrying full rated load continuously in the event of the loss of a partner transformer. Transformers shall also be capable of operating under reverse power flow conditions.

The scope includes all associated equipment required to provide a fully operational installation, including, but not limited to:

Cooling systems

### Tap changers

### Control and monitoring equipment

Transformer protection interfaces

### Initial oil fill

### Installation and commissioning services

As part of the procurement, SSEN intends to adopt a standardised and modular transformer design philosophy to support a "design once, build many" approach. The objective is to reduce design variation, improve manufacturing efficiency, enhance security of supply and support long-term network investment requirements.

## CPV classification

Transformers Transformer substation Power supply transformers Installation services of transformers

Source

Find a Tender (UK) · Notice ocds-h6vhtk-06cbac-2026-07-15T10:49:46+01:00

[View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-06cbac-2026-07-15T10:49:46+01:00)

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