Industry Specific Transformers

Points Heating Transformer, AC

Type Ref: PHT/5/DUAL/PJ/230V/110VAC/F6/GALV

5kVA icon 1 phase icon AC icon

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PHT series Points Heating Transformer, 5kVA, 230:110EF, AC, galvanized enclosure

Network Rail approved transformer for AC Points Heating. General Arrangement drawing B35084 and Wiring Diagram WD3158 refer. The specification has been updated in accordance with Network Rail Standard NR-L2-ELP-40045.

Enclosure
Floor fixing with hot dip galvanized finish to BS 729. The enclosure has a padlockable lid, a petroleum jelly filled transformer tank and a terminal chamber that incorporates condensation drain holes, rated at IP23. The transformer tank and terminal chamber are fully segregated. The enclosure incorporates a brass 16mm traction earth stud.

Rating
5 kVA single-phase, double-wound, continuously rated, manufactured in accordance with BS EN 61558 Parts 1 and 4. The transformer incorporates dual secondary windings, each rated at 2.5 kVA.
The transformer is of low inrush design with a magnetising current that is less than 5 times full load during the first cycle following energisation.

Incoming Terminals
Fitted with incoming terminals to accommodate 35mm2 conductors. A 25mm gland hole is also incorporated.

Primary Isolator
Fitted with a 32A DP isolator to BS EN 60497-3, padlockable “OFF”. The padlocking of the isolator dolly cover is independent to the padlocking of the lid.

Primary Volts
230 with tappings at +2.5%, -2.5%, -5%, -7.5%, -10%

Secondary Volts
2 no. 110V earth free windings, each rated at 2.5 kVA AC

Distribution
Each winding feeds 2 no. sets of 12A DP anti-surge fusing and 1 no. set of 2A DP anti-surge fusing (4 no. sets of 12A and 2 no. sets of 2A DP fusing in total). The terminal chamber is punched with 6 no. 20mm and 1 no. 32mm gland holes, suitably blanked.

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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.