Re: NST Power Factor?

To: "'Tesla List'" <tesla-at-pupman-dot-com>
Subject: Re: NST Power Factor?
From: Tesla List <tesla-at-stic-dot-net>
Date: Fri, 9 Jan 1998 17:10:07 -0600
Approved: tesla-at-stic-dot-net


From: 	Thomas McGahee[SMTP:tom_mcgahee-at-sigmais-dot-com]
Sent: 	Friday, January 09, 1998 9:29 AM
To: 	Tesla List
Cc: 	ThorntoR-at-rc.pafb.af.mil
Subject: 	Re: NST Power Factor?


> 
> From: 	Thornton, Russ #CSR2000[SMTP:ThorntoR-at-rc.pafb.af.mil]
> Sent: 	Thursday, January 08, 1998 6:03 AM
> To: 	'Tesla discussion Group'
> Subject: 	RE: NST Power Factor?
> 
> >Subject: 	Re: NST Power Factor?
> >
> >
> >Using these will not save you any money, but they will draw substantially 
> >less current and help you extend your variac's capability to drive 
> >multiple transformers.  Also, with a 660VAC oil cap of appropriate value, 
> >any "normal PF" neon can be similarly corrected.  
> >
> >-Adam
> 
> Adam,
> How would one calculate the appropriate value for this correction cap?
> 
> Thanks,
> 
> Russ Thornton
> CSR 2040, 
> Building 989, Rm.  A1-N20
> Phone: (407) 494-6430 
> Email: thorntor-at-rc.pafb.af.mil
> 
> 
> 
Russ,
Gary Weaver posted experimental results on use of PFCs awhile back.
It seems that about 50 mfd is the best for a single 12KV -at- 30 ma NST.
He was using 150 mfd for three 12KV -at- 30 ma in parallel.

The values are not overly critical, and even as low as 40 mfd worked
fairly well. 

Hope this helps.
Fr. Tom McGahee