The VA rating (Volt-Ampere rating) represents the apparent power your inverter can handle. While your appliances’ power is measured in watts, the inverter rating uses VA because it accounts for efficiency losses. Estimate the ideal inverter size and battery capacity based on your appliance load, power factor, and backup needs.
There is a simple method to calculate how much power your inverter is using: For 12-volt inverters, divide the connected load by 10; for 24-volt inverters, divide by 20. Example: How much does an inverter consume with a 400 W load connected? For a 12 V inverter such as a Mass Sine 12/1200, consumption will be 400/10 = approx. 40 amps.
This is why inverters have both "real" power (W) and "apparent" power (VA) ratings and this is why your inverter reports both values. If you keep adding load to your inverter, you could overload it both by the "real" power consumed by the load and by the "apparent" power, independently from each other. p.s.
In your case, it could be something like 200W (allowing for ~90% inverter efficiency, normal for a modern inverter). On the other hand, the inverter output stages need to be engineered for the "apparent" power that may be higher than the "real" power of the load.
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Yes, thank you. But why in instant view say"w", and entering in the inverter say "va"? The value is ever the identical between w and …
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