RE: Thyristor Power Controller

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

Original poster: "ken perry by way of Terry Fritz <twftesla-at-qwest-dot-net>" <kperryhv-at-stargate-dot-net>



Ben,
	For information, service or questions on the halmar drive you have I
suggest you call:
 Robicon.
 500 Hunt Valley Rd
New Kensington, PA 15068-7066
(724) 339-9500
This company bought out halmar. At the plant where I work we have a hip
furnace for sintering carbide that utilizes halmar drives and this company
has provided parts and technical support. They are located not too far from
you either.

Regards,
Ken Perry

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Wednesday, April 03, 2002 1:59 AM
To: tesla-at-pupman-dot-com
Subject: Thyristor Power Controller

Original poster: "Ben McMillen by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<spoonman534-at-yahoo-dot-com>


Hi all,
   I found a thyristor power controller made by halmar electronics in the
trash yesterday, and I was wondering if it could be used for current
limiting.. it's rated at 240VAC (single phase) 70amps.. it's got a current
transformer that provides feed back to the trigger circuitry to allow for
current limiting (At least I think that's what it's for.. )

The model number is: PA1-2470AD
Serial #: 7927999

There are 3 main terminals.. a pair labeled 'x2' and 'L2' and another 2
labled "x1" and "L1". x2 and L2 are common.. X1 goes through the current
transformer, through the SCR's and out to L1. Does anyone know where I
might be able to find out some information on this thing? Thanks for any
help...

Coiling In Pittsburgh
Ben McMillen