Mobile Substation

Key Features

✓  Mobile substations are generally used to supply power to open cast mining dragline excavators.

✓  A robust construction capable of handling harsh conditions when lifted by a crane or dragged over open ground. This minimises both torsional and linear stresses on the equipment.

✓  M.V. enclosure is equipped with outdoor open bushings to allow for overhead lines connection.

✓  All controls and monitoring are carried out remotely in a segregated control room.

✓  A fence is integral to the skid to protect and prevent un-authorised access.


Range/Rating 3MVA up to 10MVA, 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 Open Pit
Standards IEC/SANS

Excellence skills & Quality work

Hansen + Genwest  provides a 24/7 service
for breakdowns, installations, commissioning
and maintenance. 

Our Products and Services

Hansen + Genwest will continue with dry type transformers that have stood the test of time, as well as the customised products and services that makes us a leader in our field. We will also focus our efforts on introducing new and unique products as the market dictates.

Flameproof Transformer 1
Flameproof Power Pack
Dry Type Transformers
Mobile Substation
Flame Proof Gate End Boxes
Air Reliant Compressors
HAUHINCO Pumps (Agency)