07 Sep 11 07:11, TOM WALKER wrote to ROY WITT:


 RW>> Roy>> 5000 Watts of Power / 220v = 22.7 Amps.
 RW>> Roy>> 5000 Watts of Power / 110v = 45.5 Amps.

 RW>> RW> Right, but that 5 kw is what they use to figure your bill.

 RW>> That was my bottom line as well. What can be seen is that a 220v
 RW>> motor will do the same work while using less power. Not that your
 RW>> bill will change if you use it to do the same work.

 TW> WRONG! Power is Only Stated as Watts or Horsepower.

Wrong. Power is ONLY stated as Watts. You have to find horsepower by
converting Watts.

 TW> The Voltage and Amps are different only to satisfy the Ohms Law
 TW> formula. But NEITHER one is a measure of power used. ONLY their E X I
 TW> total.

E x I is not a total, Watt is the Product of E x I.

 TW> And as in your Statement above the Power is 5000 Watts(A 6.7
 TW> Horsepower Motor) in BOTH examples

Wrong. The work done was equivalant to 6.7hp...taking the 220v motor
and the 23 amps calculated above, the full load horsepower is only 4.4hp..
and the 110v motor with 45 amp load is slightly less at 4.3hp..


                R\%/itt


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