[Prev][Next][Index][Thread]
Re: Saturable Reactors
Hi Eric whwew does a person fine such a thing? Sounds like a great idea.
Lee Marsh
lmm-at-flash-dot-net
----- Original Message -----
From: Tesla List <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, September 15, 1999 12:44 PM
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
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
>
>
>
>