The low-voltage winding is manufactured from aluminium or copper foil , with the use of insulation materials in class F or H. The foil winding design of the low-voltage winding minimizes the effects of short-circuiting on the transformer’s terminals.

The high-voltage winding is manufactured from strip foil or enamelled wire, and is hermetically sealed in a vacuum cast resin casing to protect against the ingress of moisture and dirt. The smooth surface which is impervious to dust is manufactured from self-extinguishing epoxy resin.

Manufacturing range:

Power range: from 25 kVA up to 4000kVA
Voltage range: up to 36 kV
Isulation class: F or H

Standard operating conditions:

Max. operating altitude – 1000 m above sea level
Operating temperature range – 25 to + 40 °C or other on request
Rated frequency 50 Hz (60 Hz on request)

Design characteristic:

Winding – electrolytic aluminium or copper wire or foil

Making, testing & loss levels, tolerance ranges are in compliance with IEC 60076-1, IEC 60076-11, GOST