On 17/04/2014 18:25, harryagain wrote:
"Brian Gaff" wrote in message
...
So how does this affect actual loading of the system. Is it large enough
for them to really be losing out?
I can remember that when I worked in a factory, the leccy board came
around and wanted to redistribute the soak test racks and other things
to different mains phases due to imbalance of power factor due to the
method the ssets used to get power.
It always made me wonder how, if this was so bad, why it made no
difference when they wer in peoples homes.
Brian


The power factor is the ratio between true power (Watts) and Apparent power
(Volts x Amps)
The current lags the volts in inductuve equipment.
The power factor is also the cosine of the angle between volts and amps.
So
angle = 0, cos 0=1 (ie in phase, (resistive load) Power factor is
1/unity.

angle = 90, cos 90 = 0 (pure inductive load) Nor actually achievable in
practice.

True, but not usually that applicable to non unity domestic loads in
this day and age...


--
Cheers,

John.

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