UPS and AVR sizing calculator
List your equipment or give the total load, and see the UPS with its batteries, or the AVR (voltage stabilizer), that it needs, with spare capacity and motor starting allowed for. Then send it to us for a quote.
UPS and AVR sizing calculator
List the equipment, or give the total load. The calculator turns the watts into kVA, adds spare capacity so nothing runs above 80%, allows for the starting current of motors and air conditioners, and suggests the UPS with its batteries, or the AVR (voltage stabilizer), and a generator size.
The UPS you need
UPS
Suggested UPS
| Load on the UPS | |
|---|---|
| UPS size needed load kVA x spare capacity | |
| Loading of the UPS | |
| Batteries sealed lead-acid, typical | |
| Battery energy | |
| Input breaker |
AVR (voltage stabilizer)
Suggested AVR
| Equipment kVA x 1.3 | |
|---|---|
| Motors and air conditioners 2 x running kVA, for starting | |
| AVR size needed | |
| Loading of the AVR | |
| Input breaker |
| Generator, if you add one total kVA x 1.5 |
|---|
Your request goes by email to sales@tanzania.westwoodkenya.com through our contact form, or by WhatsApp to +254 733 276 276.
This is an estimate for planning. We confirm the final selection after a site survey: the equipment labels, the supply, the distribution boards and the back-up time you need.
Westwood practical standards
Typical sizes we supply. The calculator above works it out for your exact equipment.
| Application | AVR | UPS |
|---|---|---|
| Home office | 1-2 kVA | 1 kVA |
| CCTV, 4-8 cameras | 1 kVA | 1 kVA |
| CCTV, 16-32 cameras | 2-3 kVA | 2 kVA |
| Server rack | 3-5 kVA | 3 kVA online |
| Office floor | 5-10 kVA | 5-10 kVA online |
| Apartment common services | 10-20 kVA 3Φ | As required |
| Borehole pump 5 HP | 10 kVA 3Φ | Not normally used |
| Commercial building | 20-50 kVA 3Φ | Critical loads only |