Winder Electrical manufactures a range of power transformers, up to 50MVA at 66kV. These can be of standard step-down design, CER type or special type for Steel Rolling Mills, Thyristor converters or DC rectifier applications.

Tap changing can be either off circuit or on load, equipped for manual/automatic, local remote or parallel control. Indoor remote tap changer control panels to suit individual requirements can also be provided.

Full protection of the transformers can be achieved by fitting oil and winding temperature indicators with alarm and trip facilities, Buchholz relays, pressure relief devices and protection CT's.

Cables can be terminated into air/compound cable boxes, suitable for top/bottom entry or alternatively turret mounted outdoor weatherproof bushings can be provided.