Magvatech-manufactured equipment for medium-voltage overhead distribution networks, from 11kV through to 38kV, supplied and supported locally.
Three families cover most distribution network requirements. Each is supplied with our own installation, testing and commissioning.
Magvatech
Pole-mounted automatic circuit reclosers for medium-voltage overhead lines. Three models cover 15.5kV through 38kV, with continuous ratings up to 1250A. Used to clear transient faults automatically and keep feeders energised without a truck roll.
| Model | Rated voltage | Continuous current |
|---|---|---|
| REC15_Al1_5p | 15.5 kV | 800 A |
| REC25_Al1_5p | 27 kV | 800 A |
| Rec35_Smart5_5p | 38 kV | 1250 A |
Magvatech SGF/MVT
Air-insulated medium-voltage switchgear with no SF6 gas anywhere in the panel. Maintenance free, with embedded fast arc protection and remote control available. Magvatech describe it as the most compact and endurant SF6-free switchgear in the world.
| Rating | SGF_1 | SGF_2 |
|---|---|---|
| Rated voltage (Ur) | 17.5 kV (95 kV BIL) | |
| Continuous current (Ir) | 800 A | 1250 A |
| Short-circuit breaking (Isc) | 25 kA | 31.5 kA |
| CO operations at full load | 50 000 | 30 000 |
| Internal arc classification | AFL 25 kA, 0.2 s | AFL 31.5 kA, 0.2 s |
| Net weight | 240 kg | 310 kg |
Ratings from the Magvatech SGF/MVT technical booklet. Both panels are IP4X, rated 50/60 Hz, and operate from −45°C to +40°C.
VTOP series
Outdoor voltage transformers for metering and protection on 11kV, 22kV and 33kV networks. Commonly supplied alongside recloser installations to provide the control supply and measurement reference.
| Model | Network | Ratio |
|---|---|---|
| VTOP-2-15 | 11 kV | 11000 / 220 V |
| VTOP-2-25 | 22 kV | 22000 / 110 V |
| VTOP-2-36 | 33 kV | 33000 / 110 V |
Supporting equipment we supply alongside the core range. Contact us for ratings and availability on any of these.
Combined current and voltage instrument transformers for metering and protection where panel space is limited.
Enquire about CT/VT units
Surge protection for overhead lines and substation equipment, available from 11kV through to 33kV.
Enquire about arrestersSwitching and isolation for distribution networks, for sectionalising and maintenance isolation.
Enquire about switchesThe SGF/MVT range uses no SF6 gas at all, which removes the leak monitoring, handling and end-of-life disposal obligations that come with gas-insulated panels.
Up to 50 000 CO operations at rated load, with a monostable magnetic actuator rather than a mechanical spring charging system.
Opening times under 22 ms, and under 60 ms when triggered by arc protection.
Rated to 2000 m altitude as standard and specified for operation up to +40°C, which covers most South African installations.
Equipment, spares and technical support come from Midrand, not from an overseas office in a different time zone.
The same team that supplies the equipment tests and commissions it, so responsibility does not get split between contractors.
Tell us your network voltage and what the equipment needs to do, and we will come back with the right model and a clear quote.
