How we can check the output wattage of any voltage transformer? For example if we buy a voltage stabliser for television or A/C, how we can be certain that the output watts provided by the stabiliser will suit our appliance? Is there any device to check the output watts, if yes, then how to?Please help.
P over IXE Ppower in watts IIntensity in amperage Eenergy in volts voltage times amperage will give you wattage
Watts is the volts x amps. You will know the supply voltage and you can use an amp meter to find out the amps. For example 230V x 3A is 690 Watts.
The transformer should have a label on it giving it's output capacity in watts or voltamps. The device you want to connect to the transformer should also have a label giving the power draw of the device in watts or voltamps. As long as the transformer has a higher rating than the device you want to connect to it, things should work fine. I would want the transformer to have a little more power capacity than the load I want to connect. If I wanted to connect a 500 watt load, I would prefer at least a 550 watt transformer. A watt is the power used by a device. A voltamp is really the apparent power, but is very close to the actual power. For most purposes, they may be used interchangeably.
