[time-nuts] GPS locked 60Hz?

Gordon Batey gpbatey at wildblue.net
Sun Jul 28 01:32:56 UTC 2013


Greetings,

Actually it requires TWO light bulbs in series (or one bulb with a twice the
voltage rating). They usually use TWO standard bulbs in series for EACH
phase line.  This gives an immediate indication that the phase rotation is
correct.  
I have actually seen it done about 12 years ago to sync three emergency
generators with each other and then the power grid and then take over the
load and disconnect the grid. All done by hand and very carefully.  It was a
US Navy hospital situation.  

Gordon WA4FJC


------------------------------

Message: 6
Date: Sat, 27 Jul 2013 16:46:01 -0700
From: Chris Albertson <albertson.chris at gmail.com>
To: Discussion of precise time and frequency measurement
	<time-nuts at febo.com>
Subject: Re: [time-nuts] GPS locked 60Hz?
Message-ID:
	<CABbxVHvZc6hQYmWWP_=ptbZGojWGA95YsZj1BLwOu-yYUzMfNw at mail.gmail.com>
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The old time (stone age) method of setting the phase of a power generator
was easy:  Get an ordinary light bulb and connect it between the grid and
your generator,  Adjust the phase of your generator until the bulb goes
dim.  When the bulb is 100% dead out then flip the switch and connect the
load.   They had it a lot easier before there were computers and good
instruments.




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