For some electric devices, like a fan or air conditioner, I read about their power consumption in watts on their specification guide.
Does it tell about the power at normal or full speed? or Does the speed even affect the power consumption? Can I find the consumption at different speeds?
Best Answer
The Wattage written is "The Wattage", actually the regulator works by changing the voltage applied to the fan's coils. This is the case with at least the potentiometer regulators(the conventional one), so even if the fan is slowed down, fan coil will consume less power but the resistors will consume the rest. So essentially, you gain nothing even by reducing the speed!
And as Georg said, the power consumption is much greater at initial startup to overcome the static friction.