Re: Saturable Reactors

to: Eric

Resonance Research Corp manufactures such reactors for use with pole pigs.
Our units measure a small 6 x 4 x 3 inches and control up to 10 kva for use
with pole xmfrs.  Contact us via our website for further information.

Dr. Resonance

-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Thursday, September 16, 1999 12:29 AM
Subject: Saturable Reactors

>Original Poster: "Eric Davidson" <edavidson-at-icva.gov>
>To All,
>Just thought I would toss in my $0.02 into the reactive/resistive
>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
>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
>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
>pole pig and only a small  lead is used for control from a safe distance.
>this helps.  Stay safe.