Re: PFC for neons

• To: tesla-at-pupman-dot-com
• Subject: Re: PFC for neons
• From: Richard Hull <hullr-at-whitlock-dot-com>
• Date: Fri, 12 Jul 1996 10:30:00 -0700

Tesla List wrote:
> 
> >From mhammer-at-midwest-dot-netThu Jul 11 22:05:21 1996
> Date: Thu, 11 Jul 1996 09:26:12 -0500 (CDT)
> From: Mike Hammer <mhammer-at-midwest-dot-net>
> To: tesla-at-pupman-dot-com
> Subject: PFC for neons
> 
> Is there a rule of thumb or a formula for determining
> the capacitance for power factor correction on a neon
> transformer? Would the typical motor start capacitor be OK
> for this assuming proper capacitance?
> Also can a bank of neons be treated as a single transformer
> and corrected with a single cap or should each one be treated
> individually?
> Mike Hammer
> mhammer-at-midwest-dot-net


Mike,

Any AC rated cap will work for PFC.  Motor start units are good.  I would 
use a minimum voltage of 600 vac though.  One cap can correct a bank of 
neons.  Add caps to the system as you monitor the current as you coil 
runs.  As caps are added, the current drops and then starts back up 
again.  You are looking to minimize the AC current.  At this point you 
have PFC'd the system.


Richard Hull, TCBOR

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