Re: Using MOT's with NO Variac

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "R Heidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

on 12/07/01 8:21 PM, Tesla list at tesla-at-pupman-dot-com wrote:

> Original poster: "tesla by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <tesla-at-paradise-dot-net.nz>
> 
> An offering
> 
> Currently I control the I/P to my 6 MOT Tesla (6 series secondaries in 3
pairs
> centre gnd) with a variac.
> 
> An option suggested is to switch each primary ON one at a time to
increase the
> power in 6 steps instead of a variac.
> 
> Suspect it may be nescessary for the OFF xfrmrs to have their primaries
> shorted
> but this can easily be achieved with the appropriate type of switch (I think
> not havivng yet checked this point.)
> 
> Would welcome any feedback from somebody who has tried this.
> Best
> Ted Linney in NZ
> 
> 
> 
Shorted primaries should prove to be a problem if you are tring to ramp your
starting current.
  Robert  H