Re: Utility Billing KWH/ Measures in KVA but bills in kWh

In article <30W4k.58721$bs3.26422@[EMAIL PROTECTED]
>, jamessweet1
@[EMAIL PROTECTED]
 says...
> 
> 
> > 
> > The cap in A/C compressors isn't for pf, it's a capacitive start
motor. 
> > Same in refridgerators, wa****ng machines, dryers, and many furnace 
> > motors. Commercial three-phase compressors used in refridgeration and 
> > A/C do *not* have any capacitors for pf-correction.  The 3-phase
motors 
> > are started directly across the line.  (well, new hi-efficiency units 
> > sometimes use variable speed control, but that's another story).
> > 
> 
> 
> Well I measured the power factor of my 3 ton heat pump and found it to 
> be .85 to .91 depending on compressor load, so the capacitor may not be 
> for PFC, but I'd still consider it to be HPF.

That's because your motor is sized to the compressor properly.  If 
you pulled that motor off the load (compressor) it would have a 
lousy PF.  It is not "PF corrected" in any way.  

-- 
Keith