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Re: Saturable Reactors
Hi, Eric
Can you point me to where these little beauties could be found (hopefully
used or surplus)? Have you run across any literature on building one?
Thanks,
Ken Donnell
bigken-at-a.crl-dot-com
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Saturable Reactors
> Date: Wednesday, September 15, 1999 10:44 AM
>
> Original Poster: "Eric Davidson" <edavidson-at-icva.gov>
>
> To All,
>
> Just thought I would toss in my $0.02 into the reactive/resistive
ballasting
> fray. IMHO the most primo way to control a "pole pig" is with a
saturable
> reactor. The reactance is infinitely variable from min to max and
requires
> only a small DC power supply for operation (0-100 volts maybe 0.5 amp).
A
> saturable reactor is not nearly as big as an arc welder, and doesn't
dissipate
> hundreds (or more) watts like several Calrod electric stove elements in
> parallel. The reactor I have is about the size of a loaf of bread,
weighs
> about 30 lbs. Its rated at 20 amperes, with taps for both 240 and 208
volt
> operation. The large core gives it huge thermal hysteresis and can be
immersed
> in oil for even more cooling if desired, I have controlled 40 amps with
no
> problems. Another perc of using a saturable reactor is the control
winding is
> isolated from the circuit it controls. The SR can be placed right next
to the
> pole pig and only a small lead is used for control from a safe distance.
Hope
> this helps. Stay safe.
>
> Eric
> <mailto:edavidson-at-icva.gov>edavidson-at-icva.gov
>
>
>