SGT Cooler Units

Location

Oxfordshire:

Description

The main HV Pulsed Power supply to the Culham site is via a dedicated overhead line fed directly from the National Grid at 400kV and transformed down by three 90 MVA 400/36kV super grid transformers (SGT’s) normally operated in parallel. Original installation of the Super-Grid Transformers was installed over 40 years ago and original spares are practically non-existent. They are an aging asset, with cooling becoming more critical with weather and with the potential of new increased loading due to new customers on site. Therefore, replacement of the 5 remaining Blast Air Coolers is important to extend the lifespan of the equipment. The Blast Air Coolers provide cooling to the oil inside the transformer tank. There are 4 Blast Air Coolers located on each SGT, for a total of 12 units. In 2016, the first phase of this replacement was carried out, replacing 7 of the original units. This project is to replace the remaining 5 original units.

CPV Codes

• 42500000 - Cooling and ventilation equipment

Other Information

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