110v or 220v ?

Status
Not open for further replies.
J

jerryb52

Member
Location
Lake Worth, Florida
I was under the impression that here in S. Florida the meter reads the amount of amperage used. So, if a pump was wired for 220v as opposed to 110v, it would use half the amperage and cost half as much to run than at 110v.

Am I wrong?
 
Re: 110v or 220v ?

Ed,
Doesn't the meter measure energy?
Power is instantaneous. Energy -- measured in kilowatts [per hour?]-- is power used over a specific time.
~Peter
 
Re: 110v or 220v ?

Jerry
It is volts X amps give you wattage X 1,000 used in one hour = 1 Kilowatt hour If you multiply your voltage by your amperage you will see that changing to 240 volts will give you the same wattage as the amperage is cut in half. If what you were told was true then we could create energy out of nothing and live happily ever after. :D

Also these formulas are only for a 100% power factor circuit AC has a few more calculations to do but the results are close. and 3 phase even has one more item to multiply by. but the idea is the same.

Go here and look for WATTS (REAL POWER):
Formulas

[ January 15, 2005, 01:54 AM: Message edited by: hurk27 ]
 
Re: 110v or 220v ?

The meter in question senses current, voltage, and power factor in all legs and turns a rotor which is geared to a readout. The speed of the rotor is proportional to the power at any one time. This power is then integrated by the mechanical gearing to display energy in KWH.

I have also heard of people laying bricks on their gas meter, but I don't think that works either.

[ January 15, 2005, 09:59 AM: Message edited by: rattus ]
 
Re: 110v or 220v ?

This is funny, we can't even just say "kilowatt hour".

:D

I'm no better.

Editted cause I need a proof reading team.

[ January 15, 2005, 02:31 AM: Message edited by: physis ]
 
Re: 110v or 220v ?

Sam, after the fuss someone made about the careless use of 110/220 instead of 120/240, then you had better clean up your act.
 
Re: 110v or 220v ?

Don't forget about 115/230. Oh well, nominal voltage starts out with a transformer that has a secondary 120/240v nameplate. I can't recall the everyday transformer being and different. But, after all the stuff that happens with the voltage, i.e. if in fact the primary voltage applied to the primary of the transformer is where it supposed to be, if not has the primary taps, if present, been set, does the primary voltage very from time to time during the day anyway, the voltage drop that is present from the secondary of the transformer to where the voltage measurement is being taken, etc.
Then, it has been my experience that 110/220 is on the low side where I live and most of the time is between 115/230-120/240. My house is 118/236.
Isn't it a moot point anyway?
 
Status
Not open for further replies.
Top