-and-apparent-power.html
Product of sine wave voltage and current has always the same shape. However , depending of phase (power factor), height of this product is different. A ctually this height is active power, while it's square counterpart is react ive power. It can now be simulated on:
"Patrick Chung"
Product of sine wave voltage and current has always the same shape. However, depending of phase (power factor), height of this product is different. Actually this height is active power, while it's square counterpart is reactive power. It can now be simulated on:
** Wot a load of mind numbing drivel.... Phil
And poorly-stated enough to be nearly meaningless, to boot.
-- Tim Wescott Control system and signal processing consulting www.wescottdesign.com
** As a rule, "mind numbing drivel" tends to lack meaning ......
BTW:
Electronic devices that operate from the AC supply generally have non unity power factors.
But that has SFA to do with " Cos Phi " .
Plus the general & correct definition of Power Factor involves only power in Watts and VA.
PF = Watts / VA
The secret is that the "A" in "VA" is the RMS value of the current draw.
... Phil
depending of phase (power factor), height of this product is different. Actually this height is active power, while it's square counterpart is reactive power. It can now be simulated on:
Only covers the case of sinusoidal voltages and currents, which is far from the only case. Not even the commonest, in these days of power supplies incorporating mains rectification.
Spreads misapprehension, which is difficult to un-teach.
--
"For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled."
(Richard Feynman)
That is an interesting word, but I think you are correct.
Actually, some of the other simulations may be more useful, as listed here:
But it's probably just about as easy to use LTSpice and you get a lot more information and flexibility.
Paul
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