RE: [TCML] 4 MOT stack and balasting

["andrew" <andrew@xxxxxxxxxxxxxxxxxxxxx>]

 Thank I will try that. It makes sense.
I will let you know how I gaet on.
Andre

-----Original Message-----
From: David Dean [mailto:deano@xxxxxxxxxxxxxxxx] 
Sent: Saturday, 9 January 2010 3:01 a.m.
To: Tesla Coil Mailing List
Subject: Re: [TCML] 4 MOT stack and balasting

Hi Andrew
On Thursday 07 January 2010 08:20:28 pm andrew wrote:
> I have used ballast so I would not trip all the house breakers. As 
> sugested I ground off the welds on a spare MOT, shorted it's secondary 
> and connected it in series with the primary of my 4 mot transformer 
> and varied the gap between the I and E sections.
> 
Have you tried with the secondary *not* shorted on the ballast MOT?
I removed the secondaries from my "rough and ready ballast"
You will find that shorting the secondary of the ballast MOT forces it to
draw maximum amount of current, this is usually used to provide a fixed
ballast with an unmodified core.
Leaving the secondary open, or removing it, will allow the current to be
controlled by the effective inductance of the primary coil, which can be
changed by varying the gap of the core. More gap == more current == less
inductance less gap == less current == more inductance

later
deano

 

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