Vener 7 · Oil-cooled
Oil-Cooled AVR Range
For three-phase installations where efficiency, heat dissipation and continuous duty matter. Transformer-grade mineral oil carries heat away from the windings, letting the unit run cooler under sustained full load than an equivalent air-cooled design. Available from 10 kVA up to 3000 kVA, indoor or outdoor-cabinet.
Key features
- Transformer-grade mineral oil cooling (class ONAN)
- Higher efficiency under continuous full load
- Better heat dissipation in hot ambient conditions
- Outdoor cabinet versions available (IP-23)
- Three-phase only, 10 to 3000 kVA
- Lower noise than forced-air designs
Specifications
| Cooling method | Oil-immersed, natural oil circulation (ONAN) |
| Capacity range | 10 kVA to 3000 kVA (standard steps) |
| Phase configuration | Three-phase, 4-wire |
| Oil type | Transformer-grade mineral oil (IEC 60296) |
| Tank construction | Welded steel, radiator fins, breather with silica gel |
| Enclosure rating | IP-23 outdoor cabinet (optional), IP-20 indoor |
| Ambient temperature | -20 °C to 50 °C |
| Installation | Floor-mounted, concrete plinth, bund for oil containment |
| Oil service interval | Annual dielectric test, top-up as required |
| Maintenance | Annual oil test, bushing inspection, silica gel replacement |
| Model prefix | SVS[band]L3[kVA], letter L denotes oil (liquid) |
Typical applications
- Factories with continuous production shifts
- Large cold stores & cold chain
- Flour mills & grain processing
- Cement & steel plants
- Textile mills
- Large hospitals & referral hospitals
- Commercial bakeries
- Water treatment & pumping stations
- Telecom BTS sites (outdoor cabinet)
- Mines & quarries
Voltage problems on site?
Tell us your load and location. We size the right Vener 7 unit and quote it, free, usually the same day.