Re: [TCML] power meter goes crazy

[FutureT@xxxxxxx]

Dave,
 
I don't know about the power meter issues, but PFC definitely helps to  reduce
the input current and improve the power factor, but will not reduce  the 
power draw.  
Some NST's have a built-in PFC, but I'm assuming your's does not.
 
As an example, one of my NST's drew about 8 amps without PFC, but about 5  
amps
with PFC.  The power factor was about 0.82 or so with PFC if I  remember 
correctly.
 
John
 
 
>In a message dated 5/29/2008 5:00:49 P.M. US Eastern Standard Time,  
davidnelson11@xxxxxxxxxxx writes:

>I  have a cheap electronic (digital) power meter (about A$40). I put it in 
line  with my 750W tesla coil >>(15/50 NST). Current varied from 3A to 8A -  
NST is rated 3.6A. Power varied from 700W to 2200W and >power factor varied  
wildly from 30% to 80%. Does this seem right. Is it because of the nature of  the 
>meter? Interference from the coil? (about 4 meters away - 12 feet) Any  
comments? 

>I can't help thinking that a PFC will actually help me  out. I know this is 
a can of worms but even with all >the discussion I am  still uncertain about 
the need for a PFC cap. There are conflicting opinions I  think. >Any 
(definative) advice for NST use would be greatly  apreciated.

>Thanks
>Dave Nelson







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