[aprssig] Shack backup power

KBØNLY kb0nly at mchsi.com
Sat Jun 4 23:15:30 EDT 2011

Same here, six circuit transfer switch panel with voltage and wattage 
metering for the load being put on the generator, the rest of the panel 
stays dead.  When the power comes back on the other circuits come back on 
and I know the grid power is back and kill the generator and switch stuff 
back over.



-----Original Message----- 
From: Lee Mushel
Sent: Saturday, June 04, 2011 10:41 PM
To: TAPR APRS Mailing List
Subject: Re: [aprssig] Shack backup power

Well, Keith, not all transfer switches operate as you have described.
Mine, for example, switches only those circuits I have chosen to have active
under generator supply.   And it is correctly wired!   If you think about
it, I'm sure you will see why this is the way it is done when the emergency
source is expected to produce less power than the normal full load.   You
are correct in that the generator is never supposed to be connected to the
line but given the nature of  residential wiring (including mine) which
"grows over time" bad things can happen and I would certainly hate to
guarantee that there is no "cross connection."

And I will make my other point again.   It is very easy for someone to
assume that if he has a solar panel and a grid tie converter he has
something that will supply power when the commercial system fails.   It is a
bit hard for me to understand how that will happen if the grid tie converter
is part of the solar panel.   As I said, it seems to me that people are
being a bit too aggressively "green."


Lee  K9WRU
----- Original Message ----- 
From: "Keith VE7GDH" <ve7gdh at rac.ca>
To: "TAPR APRS Mailing List" <aprssig at tapr.org>
Sent: Saturday, June 04, 2011 7:25 PM
Subject: Re: [aprssig] Shack backup power

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