Industry Specific Transformers

TH Series Transformer, Sellafield Specification

Type Ref: TH/1/10/415-110/CTE/SELLAFIELD

10kVA icon 1 phase icon

P.O.A

Can’t find what you’re looking for?

We’re always here to help! Give us a call or fill out our contact form and a member of our team will be in touch!

TH series transformer, 10 kVA, single-phase, 415:110CTE to Sellafield Sites Engineering Standard ES_1_2223_2

Blakley Electrics step-down, double-wound enclosed transformer manufactured generally in accordance with Sellafield Ltd Engineering Specification ES_1_2223_2 and BS EN 61558 Parts 1, 2-4 & 2-23, but with a centre-tapped to earth secondary winding. The transformer provides a Reduced Low Voltage Supply in accordance with BS7671.

Due to the temperature rise within the main enclosure, a separate, vented chamber is fitted to the front of the enclosure to house the fusegear and primary isolator. There is an air gap between the main enclosure and the chamber to reduce heat transfer.

Enclosure
The enclosure is of robust construction, vented to IP31 and is fabricated from 1.5mm mild steel, seam welded. The enclosure incorporates: wall and floor mounting brackets; 2 x 20mm and 2 x 25mm knock-outs on each side; mesh fitted behind all ventilation louvres to maintain the IP rating. The enclosure is finished in electrostatically applied polyester powder paint, shade Dark Admiralty Grey to BS4800 18B25.

Incoming Terminals
DIN rail mounted, screw clamp type, shrouded to IP2X.

Primary Isolator
Fitted with a 32A DP panel mounted switch with an external actuator, padlockable in the “OFF” position. The switch terminals are shrouded to IP2X.

Rating
10kVA single-phase, continuously rated, manufactured in accordance with BS EN 61558 parts 1, 2-4 and 2-23. The winding is constructed from Class “F” insulation materials and incorporates a protective screen between the primary and secondary windings.

The transformer is of low inrush design which is ≤5 times the full load current rating of the transformer during the first cycle following energisation (based on the supply being connected to the correct primary voltage tapping and the source impedance of the primary supply being ≥0.1Ω.

Primary Volts
415 volts with tappings at 375, 395, 435 and 455V

Secondary Volts
110 volts centre tapped to earth providing a Reduced Low Voltage supply in accordance with the requirements of BS EN 61558-2-23 and BS7671.

Distribution
2 no. RS100H black fuse carriers each equipped with a 100A HRC fuse link, connected to the outgoing terminals housed within the main enclosure.
2 no. RS100H white carriers each equipped with a solid link. One white carrier provides a terminal for the centre tap connection and the other links the centre tap to earth.

A wiring diagram is supplied with each transformer.

Product Downloads

Data Sheets

Drawings

On Application

This product cannot currently be purchased online. Please contact Blakley Electrics Customer Services on 0333 188 0284 to discuss your requirements and for pricing and lead times.