View Single Post
  #4   Report Post  
Grant Erwin
 
Posts: n/a
Default

wrote:

On completion of a 3 phase converter and after adjusting the voltages
with caps what effect does adding the power factor corrections cap have
on the commercial power meter reading.Does it add more or less power to
the power bill?
My guess is that it would add more power to the bill as the power
factor approached zero(voltage in phase with the current)
Hence according to my ramblings it would be better not to correct power
factor and let the power company worry about it.


No. Uncorrected power has a real (resistive) component, which you pay for, and
an imaginary (inductive or capacitive) component, which your meter ignores. If
your power bill is the only issue, there is no reason to use power factor
correction caps. However, both kinds of current really flow in your cabling, so
if your wire is anywhere near its rated current you can feel much safer if you
use PF correction caps.

Grant