PSN-L Email List Message

Subject: Re: 1 RPM Synchronous Motor
From: Geoffrey gmvoeth@...........
Date: Sat, 5 Mar 2011 15:47:26 +0000

Is There a possibility the bearing of the drum are frozen ?

Electric motors will draw considerable current if
they do not turn.
As the rpm builds a counter EMF develops which lowers the
current draw.
Before you install any replacement motors,
make sure the drum turns with minimum of
mechanical resistance.
I understand WD40 is not right for delicate machines.
( don’t understand why)

-----Original Message----- 
From: Christopher Chapman
Sent: Saturday, March 05, 2011 1:07 PM
To: psnlist@..............
Subject: Re: 1 RPM Synchronous Motor

From: Jan Froom JDarwin@.............>
CC: George Bush ; Steve Hammond ; Pete Rowe II 
Sent: Sat, 5 Mar 2011 0:20
Subject: 1 RPM Synchronous Motor

Any chance someone might have a  1  RPM   Synchronous Motor that's used on the drum recorders?
Preferably 12 Watts; I have a 6 watt one, but don't think it will hold up running my BIG drum.
They are made by Warren Telechro Company, Ashland, Mass.

Turned my system on today... there was a flash...
both lead wires are completely burned off the motor.

Jan in Gilroy


Public Seismic Network Mailing List (PSNLIST)

To leave this list email PSNLIST-REQUEST@.............. with 
the body of the message (first line only): unsubscribe
See for more information.

[ Top ] [ Back ] [ Home Page ]