LUMINOUS – BRAVO (875VA)
- Microcontroller-based design
- SMD technology for compact and reliable design
- Specially designed for low and moderate power-cut areas
- Dual battery charging option for flat plate and tubular batteries
- Free preloaded battery management software
- Regulated battery charging commences from 120V to 300V mains voltage
- Auto holiday mode preserves battery charge while you are away from home for a long time
So if you need to run two tube-lights, three fans, one TV and one laptop, you’ll need total power of 550W (=2×60+3×70+1×120+1×100) to support all of your appliances at the same time.
Now that you know how much power is required, it’s easy to get the VA rating of the inverter. In ideal conditions, the VA rating would have been the same as the power need, i.e., 550VA. But, practically, the power factor of the inverter is less than 1. Hence the power supplied by a 550VA inverter would be lesser than 550W. Assuming the power factor of the inverter to be 0.7, you can arrive at the VA rating of the inverter as follows:
Required VA of Inverter x 0.7 = 550W, or
Required VA of Inverter = 550/0.7 = 786VA
Buy an inverter that is of slightly higher capacity than you need at present as you will be able to run something else simultaneously, whenever required. So in the above example, an 800VA inverter will fit into your requirement.
Some appliances require extra load (called surge load) when these start up. While calculating the load requirement, take into account this surge load (startup load) and not the lower running load. Typically, the startup load is two times the running load. In the case of appliances like air-conditioners, refrigerators and pumps, it could be more than three times the continuous load rating.
Luminous 600VA Inverter Price – Rs.4,000/- Square wave
Luminous 800VA Inverter Price – Rs.4,800/- Square wave
Luminous 800VA Sine Wave Inverter Price – Rs.5,100/-
Luminous 1.4 KVA Inverter Price – Rs.6,500/- Sine Wave