[time-nuts] GPS locked 60Hz?

[Bob Camp]

Hi

It turns out that if you have a network with a *lot* of sources and a *lot* of loads and a *lot* of interconnects, you would need a *large lot* of light bulbs….

Bob

On Jul 27, 2013, at 9:32 PM, Gordon Batey <gpbatey at wildblue.net> wrote:

> 
> 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>
> Content-Type: text/plain; charset=windows-1252
> 
> 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.
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.