Kris,
Even with generators using an electronic governor, the frequency changes
with load. Also while inverters are stable their frequency is not as
accurate as utility power. Clocks that use the ac frequency as the time
standard will not work reliably when powered with off-grid power. Such
should be disclosed in any contract to install an off-grid power system.
Kent Osterberg
Blue Mountain Solar
Kristopher Schmid 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
sol...@legacysolar.com
www.legacysolar.com
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