I need a math wiz..

Fan Motor
1/2 hp
120 volts
5.6 amps
672 watts
need to convert this into kw/h to find out how many kilowatt/hours this motor consumed in 3 days running 24/7 or 72 hours.

Please show your work.
Thanks Jim

 

thought this might help:


Check the wattage on the appliance, which is usually printed on a small label attached to the appliance. (Appliances with thermostats (T), like ovens and fridges, don’t use their full wattage all the time. To work out how much power they are likely to consume, halve the wattage and use this number for the next step.)

Multiply the wattage by the average number of hours the appliance is used over the period you want to check. Then divide by 1000 and you will have the number of kilowatt hours you are using.

i got 48.384 kilowatt hours.

 

Not that Chipmonk needs validation, but he's correct if you wanted another opinion.

Watts / 1000 X hrs

672/1000 = .672 X 72 = 48.384

 

thanks. according to my wife i'm not correct all that often, so i'll take validation where i can get it.

 

1000 watts = 1 kw
672 = .672 kw
3 x 24 hrs = 72 hrs
72 x .672 = 48.384

yep, you guys are right... or is it... I'm right....
LoL

 

You must have married my Sister In law

 

Thanks guys,
I wanted to make sure I was computing it correctly.

I have a tenant who was complaining about having to pay for the electricity used for the fans to dry out their wet carpeting.
Some people are such big whiners.

Jim