[Amps] Should a blower run after amp shutdown?

[Robrk]

On Jun 3, 2011, at 6:44, "Jim Thomson" <jim.thom at telus.net> wrote:

> 
> ##  here's the procedure I use on both a 3CX-3000A7 [ 7.5v @ 50A]...
> and also a 3CX-6000A7  [7.0V @ 80A] .  Separate 240 vac feed into the
> input of a 1kva Sola constant voltage xfmr.   Output of Sola xfmr is fed into the
> input of a 0-240 vac @ 5A  variac.    Output of variac feeds the  input of the
> dahl fil  xfmr.   Variac has a cam + microswitch on it's  shaft.  Microswitch contacts
> activate the coil of a dpdt relay. 
> 
> ##  1 x toggle switch for blower, and a 2nd toggle switch for the fil.  Input of 2nd toggle gets 

Along with the cam or flapper on the variac, I have a dpdt "wired around" itself, on the main primary relay, with an RB (Red Button-- momentary) so when you go for coffee and the power company does one of their 2 second x 3 power cycles, the amp goes down and can't come up ' till I push the button.
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