Switchgear, Transformers & Mini Substations

Switchgear installation, maintenance, testing and commissioning, plus supply of distribution transformers, mini substations and mobile mini substations.

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HVT installs, maintains, tests and commissions indoor and outdoor switchgear, covering both oil-filled and SF6 circuit breakers.

Through its OEM relationships, HVT also supplies switchgear, distribution transformers, mini substations and skid-mounted or mobile substations and transformers.

Scope of services

01.

Circuit breaker maintenance

Oil-filled breakers: annual inspections, periodic maintenance and major overhauls
SF6 breakers: condition monitoring, annual inspections, periodic maintenance and major overhauls

02.

Testing & commissioning

Speed and timing tests
Contact resistance
SF6 percentage, dew point and acidity tests
SF6 leak detection

03.

Supply

MV and HV switchgear
Distribution transformers (new and refurbished) up to 1MVA
Mini substations
Mobile mini substations

HVT photograph: Control & Protection gallery
HVT photograph: Control & Protection gallery

Other services

Project enquiries

Let’s discuss your next infrastructure project.

Contact HVT to discuss your high-voltage, medium-voltage or electrical infrastructure requirements.

Fax +27 (0)11 316 7860 · Postal: PO Box 8683, Centurion, 0046