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110 vs 220 VAC air conditioner
wrote:
Jake wrote:
kWh is power in Thousands of Watts, expressed over time.
That might work, if "expressed over" means "multiplied by" :-)
But I don't like the first part ("kWh is power..."), since
kilowatt-hours (and Btus) are a measure of energy, not power.
Watts are expressed as Amps x Volts.(for single phase, but let's not
complicate it further).
watts = amps x volts x power factor. This can make a big difference.
Some undercounter fluorescent fixtures have a power factor of 0.4.
IE An air conditioner consuming 10 amps at 120 volts consumes 1,200 watts.
Only if the power factor is 1.0.
The term "Watts" defines "True Power", and Turtle's explanation is correct.
5 amps x 240 volts = 1,200 watts
10 amps x 120 volts = 1,200 watts.
Only if the power factor is 1.0.
...please don't ever, ever, ever use an extension cord without
talking to an electrician first.
Would you be an electrician, by chance? :-)
Nick
Hi,
Again Volt x Amp and Watt is two different thing. Watt rating is always
less than Volt x Amp.
This is such a basic thing in theory, Sigh!
Tony
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