ProSine idle draw (was Split it) [RE-wrenches]

[allan]

A little more:
    In the case Phil mentions, neither the installer or the owner of that
system knew how high the idle was.  It was a small home, intermittent duty,
gas fridge, 300W array.
    We're long been pretty heavy Home Power fans, but their unwillingness to
acknowledge the validity of our arguments with the ProSine has clouded our
opinion of HP's editorial objectivity since then.
Allan at Positive Energy

----- Original Message -----
From: "Phil Undercuffler" <phil at positivenergy.com>
Subject: Re: ProSine idle draw (was Split it) [RE-wrenches]


> We were given a PS inverter for testing a year ago or so.  The no-load
draw
> was 50 watts if left idling, the sleep sensitivity was harder to adjust
and
> less functional than even the SW series 16 watt increments (only
adjustable
> by dip switches behind a small panel)  and the unit took up to three
seconds
> to wake up from idle.
>
> HomePower did a thumbs-up review on it, which elicited a flurry of email
> discussion between us and them (Hi Ian!).  In my home, my whole array
> couldn't keep up with that idle, and I can enter a room and leave before
the
> inverter wakes up the light.  Their contention was that they used a
> dedicated switching inverter for the lights (Exeltech) and used the SW and
> PS inverters for running office equipment and motor loads, therefore at
> night it was off and not drawing power.  Also, the charger is supposed to
be
> more efficient than the SW.
>
> But a couple of months ago we got a call from a homeowner North of here.
> Every so often the inverter in his guest house would shut off
mysteriously.
> Turns out that if they forgot to unplug all the ghost loads when they left
> it would leave the inverter on, which drained the system to LVD.  Inverter
> would shut off, system would charge back to full in a week or so, and they
> would come back to a "full" battery and disconnected inverter.
>
> >

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