Re: PFC for neons

• To: tesla-at-pupman-dot-com
• Subject: Re: PFC for neons
• From: Richard Wayne Wall <rwall-at-ix-dot-netcom-dot-com>
• Date: Sat, 13 Jul 1996 11:19:28 -0700

7/13/96

All, 

As a newcomer to this sport, I probably missed the previous threads on 
PFC.  My understanding is the primary load of the transformer 
introduces inductance which shifts the phase angle causing a portion of 
the power to be converted to reactive power.

Capacitance may be added in series with the primary and at the driving  
frequency of the mains, a tank circuit is formed with capacitive 
reactance balancing inductive reactance.  The power factor is thus 
"corrected" and power appears resistive rather than reactive.  Please 
correct me, if this is incorrect.

My question is how does this PFC influence the transformer secondary?  
I assume there is higher secondary power output?  How does this work?  
Does mutual inductance between the primary and secondary play a role?
If mutual inductance does play a role, does addition of a PFC capacitor 
in the primary circuit help protect the secondary against kickback?

RWW  

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