Distribution Transformers

  • Hansen + Genwest oil cooled distribution transformers are designed and manufactured in accordance with IEC standards.
  • The oil cooled distribution transformers rating vary from 630kVA up to 20MVA, with the primary voltage up to 33kV and secondary voltage up to 22kV.
  • Available in standard or customised tapping arrangement, with ON-LOAD or OFF-LOAD tap changer.
  • Transformer enclosure can be either hermetically sealed or free breathing, depending on the size as specified by SANS 780 standard.
  • The units are either skid base mounted, wheels or free standing, with cable boxes or outdoor open bushings, fitted with all necessary fittings (WTI, OTI, Pressure Relief Valve, etc.)

Specifications

Range/Rating 630kVA up to 20MVA, 3 phase, 50Hz.
Primary Voltage Up to 33000V.
Secondary Voltage Up to 22000V.
Tapping Arrangement ON or OFF-LOAD Tap switch, as per customer requirements
Vector Group Dyn11 or as per customer requirements
Cooling Method ONAN
Windings Copper wound with winding temperature monitoring
Insulation Class A, 105°C
Duty Cycle Continuous
Transporter Skid base, wheels or free standing
Atmosphere Underground (non-fiery) or surface
Standards IEC/SANS 60076/1-5/8/11/12 and SANS 780