On Sun, 1/15/17, derickgates@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: [Amel Yacht Owners] Onan frequency variation
To: amelyachtowners@...
Date: Sunday, January 15, 2017, 12:49 PM


 









Hi all,
I recently installed meters
on my 230 volt panel and have been using them to monitor the
volts, amps and frequency of both shore power and the
generator.  Today, one of my crew noticed that the
generator was unexpectedly putting out at much to high a
frequency (75 Hz).  We turned off the microwave he was
using, but left the 100 amp and 30 amp chargers going.  The
frequency settled down to the normal
50Hz.
Not
understanding how a microwave could affect the frequency put
out by the generator, we did several experiments and found
that the frequency began to fluctuate under high loads, and
the microwave was not part of the issue.  Later on, high
loads had no impact on the frequency, so the problem seems
to be intermittent.  Has anyone else experienced this
issue?
Derick
GatesSM2K#400 BravaCurrently at Pigeon
Islands, Guadeloupe









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