On 16/02/2012 9:31 AM, Robert Macy wrote:
On Feb 15, 1:52 am, Sylvia wrote:
On 14/02/2012 12:52 AM, Robert Macy wrote:





On Feb 13, 5:45 am, wrote:
...snip...

Adding capacitance in parallel has no effect on the tranny whatsoever -
and it will make the PF worse.

Noted, and thanks.
...snip...

Adding caps will indeed have NO effect on the tranny, but WILL improve
the PF as seen by your AC mains, which means the amount of power you
drop in your wiring [and pay for] will be less.

Adding caps is a STANDARD way to adjust power factor to 1. Used by the
industrial power consumers that are heavily penalized for lagging
power factor. It is cheaper for them to add a building full of caps,
just to shift their PF and pay less for power.

If you do the analysis of power consumption throughout a standard AC
mains power distribution, you will find that a lagging power factor
[caused by motors, etc] INCREASES the power required to simply get
billable wattage to you. And, it's surprisingly large.

But, except for the extra power dissipated in the household wiring, is
not measured by the meter, and not included in the billed energy units.

Sylvia.

True!

Today, the only way that utilities companies can bill for this lost
energy is by assigning a 'penalty' for bad PF.

I'll bet with today's smarter metering, they'll figure a way to
measure it real-time and bill for it.


And if we correct our power factor, our bills will be lower than they
are now.

Oh, wait a minute, what was I thinking?

Sylvia.