Inverters - Battery Back Up Systems.
How do these systems work?
The unit is permanently connected to utility power so that while mains is present the extra large built-in battery charger recharges the batteries and keeps the batteries fully charged until a power failure (load shedding) occurs.
The equipment you want to back up is also permanently connected via the system. Back up means the designated circuit / equipment has a backup supply.
In case of a power failure the backup system automatically switches over, via an extra fast transfer switch to the inverter, which will continue to provide power to the equipment within 15 msec. This is not as fast as a UPS system, which is instantaneous.
This is extremely fast and standard equipment like TVs, DSTV decoders, microwaves, fans, etc. are unaffected. The sinewave systems can also backup computers but it is possible that a very small percentage of computers could reset during the switchover time.
Also wifi routers can reset.
When utility power returns, the whole procedure is reversed and the unit will switch back to utility power and will automatically start re-charging the batteries.
Your equipment remains connected to the system even when power is restored. The whole process is fully automatic.
The advantage of this that you don’t have to install a noisy generator. Generators need constant refilling and maintenance and are not ideal for residential areas or for small businesses where noise and pollution from the exhaust are a problem.
Our systems offered here are a sinewave inverter; with a built-in battery charger, automatic changeover switch and a large battery bank. There is a small fan on the inverter. We do not recommend or install modulated sine wave inverters, which are cheaper and have limitations.
FAQ: How many hours of power can a multi-function inverter with battery storage provide?
The battery back-up system should be sized sufficiently to have time to charge fully between load shedding periods.
Note: we do not do solar installations, which tend to be very problematic and less efficient than one thinks.
Contact RSA Electrical for a site visit (R620 ex Vat) and a subsequent quotation.