Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!bbn!bbn.com!grossman
From: grossman@bbn.com (Martin Grossman)
Newsgroups: sci.electronics
Subject: motor hookup
Keywords: sync motor
Message-ID: <39415@bbn.COM>
Date: 3 May 89 15:17:48 GMT
Sender: news@bbn.COM
Lines: 39


I need to get a sync motor running and need help

The motor face place reads:

	synchronous
	voltage 120
	frequency 60Hz
	1 phase
	torque 90inch ounces
	capacitor .85mfd


	it has 3 leads.

	I measured the resitance on the leads as follows:

    black           blue           red
      o              o              o
      |              |              |
      --- 750 ohms -- -- 750 ohms ---
      |                             |
      ------------1500 ohms----------


Question:
	which leads do I hookup the 120V ?
	which leads do I hookup the capacitor ?
	what type of capacitor (.85mfd) do I use ?
	what should the voltage rating of the capacitor be ?

PS
1) This is a motor used for a telescope clock drive.
2) The motor has a built in gearing so shaft rotates 2RPM

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