Those voltage and frequency variations are way out. No need for THD
readings. You can't reliably run a household with that much variation,
it will start letting the magic smoke out of many of the appliances.
I'm not sure about a bad relay, I don't see how that would cause that
variation.
Ray, I don’t have too much time into troubleshooting, but I have confirmed
that inverter AC output readings on the RC are suggesting steady voltage
and frequency but my meter readings are showing voltage from 108-135VAC
per leg and 60-95 Hz with or without loads. It sounds like a bad AC relay,
Just so you know, AEE Solar still has a bunch of Magnum panels and
controls, no inverters, no support though. At least until they find someone
to take it all. Keep an eye out for other close out stuff too. But, yes
they are still going and working on getting better.
Brad Bassett
Retired---
1985
MMPs – Many Missing Parts?
Dana Orzel - E - d...@solarwork.com - C - 208.721.7003
From: RE-wrenches On Behalf Of Rich
Nicol via RE-wrenches
Sent: Wednesday, May 31, 2023 1:28 PM
To: 'RE-wrenches'
Cc: r...@solartechvt.com
Subject: Re: [RE-wrenches] Tech Support Issues with Sensata
Magnum has been difficult that last 3 years – we currently multiple inverters
that are down needing boards for repair that can’t be obtained. It appears
stock of new inverters is just starting to trickle back into suppliers so we
hope to see parts soon.
It seemed Magnum quality took also took
What were the issues? I've not seen a Magnum have power quality
troubles, but they are not the "grid" either. My experience is that
they are similar or a bit better than Outback, but certainly have
measurable THD in the 4 to 5% range. Its almost always finicky loads,
and the inverter has
Hi all,
I have a client with a Magnum MS 4024- PAE inverter. There are some serious
issues with power output quality and according to the client, another
installer had started the RMA process while the inverter was still under
warranty, however Sensata has not been responsive and has lost track
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