[RE-wrenches] Slow clocks

[Chris]

The way I learned to set gen set rpm's about 25 years ago was with a plug in
clock with a sweep second hand, and when the clock was good we had 60Hz. 

 

Sincerely,

Chris Worcester

Solar Wind Works
NABCEP Certified PV Installer
Phone: 530-582-4503
Fax: 530-582-4603
www.solarwindworks.com <http://www.solarwindworks.com/> 
chris at solarwindworks.com
"Proven Energy Solutions"

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of James
Rudolph
Sent: Monday, April 04, 2011 9:02 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Slow clocks

 

Here in American Samoa the electronic clocks always run fast, a few minutes
gained every other day due to high frequency issues (65+Hz) that plague the
Island. The local power authority keeps the diesel generators cranked. 

 

Hope this help a little.

.

On Tue, Apr 5, 2011 at 10:51 AM, Kristopher Schmid <solman at legacysolar.com>
wrote:

I have an off-grid client who tells me that his clocks lose about 1 minute
per hour while he is running his backup generator.  Has anyone seen this
before?  Do clocks use the zero crossing on a 60Hz wave for keeping time and
could a frequency discrepency in the generator cause this?

My thanks to the brain trust...

Kris

Legacy Solar, LLC
864 Clam Falls Trail
Frederic, WI 54837
715-653-4295
solman at legacysolar.com
www.legacysolar.com <http://www.legacysolar.com/> 

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