RE: Power Factor (Was Freau's efficiency)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Pete Komen by way of Terry Fritz <twftesla-at-qwest-dot-net>" <pkomen-at-zianet-dot-com>

Hello Jonathan,

Under NO load, the transformer will draw very little current; enough to
magnetize the core and some losses.  It can usually be ignored.  My high
power factor 12/60 draws 3.33 amps when the load is a constant arc across a
spark gap under test.  Unfortunately, I didn't measure it with no load.  My
10 amp variac draws less than an amp under no load.  (all measured with an
AC ammeter.

Regards,

Pete Komen

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Friday, June 08, 2001 7:19 PM
To: tesla-at-pupman-dot-com
Subject: Re: Power Factor (Was Freau's efficiency)

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Kidd6488-at-aol-dot-com>

Hi, A 12/60 (720 VA) will draw 6 A -at- 120 V  with no load, correct? Will it
draw the same ammount of current during TC use? If it is the same, would PFC
really do much? Its only 6 A...  ( Ive asked alot of questions this week!
:-)
 )

---------------------------------------
Jonathon Reinhart
hometown.aol-dot-com/kidd6488/tesla


In a message dated 6/8/01 01:43:51 PM Eastern Daylight Time,
tesla-at-pupman-dot-com
writes:


>
> Richie, Ed,
>
> When I added PFC to my NST TC with static gap, it reduced the current
> draw to about half according to my ordinary ammeter.
>
> Cheers,
> John Freau