pump horsepower [RE-wrenches]

[Jack West, Talkeetna AE]

> Travis,

The formula for amperage (single phase AC) as found in Ugly's Electrical
Reference is:

 Amps  =   HP X 746 / (Voltage  X  %EFF  X  Power Factor)

1/2 HP submersible pumps I have installed draw about 9.6 amps (117VAC).  I have
seen the start windings draw as much as 25 amps.

Jack West
Talkeetna AE

>
> One horse ~ 6.4 amps (746 watts/117 volts).  I have measured the peak on
> many 1 1/2 hp well pumps and have never seen it go past 14 amps per phase
> (that's with capacitor start).  I like the well pumps with the capacitor
> start and for what it's worth I haven't seen one without it for years.
>

- - - - - - -
To send a message:
 <RE-wrenches at topica.com>

The archive of previous messages: 
 <http://www.topica.com/lists/RE-wrenches/

To unsubscribe: 
 <RE-wrenches-unsubscribe at topica.com>

To check out the other RE-Wrench participants:
 <http://www.mrsharkey.com/wrenches/index.html>

Hosted by Home Power magazine: 
 <http://www.homepower.com>

For info contact list moderator:
 <michael.welch at homepower.com>
___________________________________________________________
T O P I C A  The Email You Want. http://www.topica.com/t/16
Newsletters, Tips and Discussions on Your Favorite Topics