Re: [RE-wrenches] Inverter output fluctuations

2023-07-03 Thread Ray Walters via RE-wrenches 
It could be the LED bulbs.  I've had different brands flicker like crazy 
on grid and off.  Seems to relate to other loads that are on, especially 
stuff like washing machines with VFD drives, and well pumps.   Add 
dimmers and it can get even worse.


IMHO, they really need to improve the quality of the driver circuits on 
the LED bulbs.  Only gets worse on a less than perfect AC waveform.


Ray Walters
Remote Solar

On 7/3/2023 5:09 PM, Dave Angelini Offgrid Solar via RE-wrenches wrote:
I think I would try eliminating things. Turn off the AC coupling for a 
few days and get results. Turn of DC solar and get results. Measure AC 
voltage with a scope or just observe voltage during the flicker. Are 
all of the lights flickering? Are they on dimmers?  Are there any 
loads failing that could be the source? Is the output with-in spec? 
Rock solid 60 HZ right.

Do an AC bypass of XW with the genset and check for flicker symptoms.
Are they on Insight? They really need it for you to monitor. Are there 
any faults, warnings or events ? Check history.  There are a few 
settings in the old XW+ that could have been glitched by a surge or 
nearby lightning strike.

XW+ could have a damaged FET. Open the unit and do a visual.
There would be a smell and transistor fragments on the bottom right 
side of the power bridge. 90% of XW failures have visual evidence.
While you have it open, Check the DSP sensing and control board, both 
LEDs (light-emitting diodes) D24 and D25 are on.
Last thing is a DC power down of the unit and the DC buss for 5 
minutes.  If that does not work, then a reset to factory values.
This is off an old list I got from Support many years ago and combined 
with my findings over the years. Really rare for this kind of 
weirdness and why it would be getting worse without visual evidence.

Good Luck Howie!
*Dave Angelini Offgrid Solar "we go where powerlines don't" 
http://members.sti.net/offgridsolar/ e-mail offgridso...@sti.net text 
209 813 0060*


  


On 2023-07-03 12:42 pm, Howie Michaelson via RE-wrenches wrote:


Hi All,
I upgraded an old clients' off-grid system about five years ago to a 
Schneider XW6848+ and 2 Blue Ion 2.0 cabinets (32kWh). When the 
batteries were moving toward full, if the charge rate was on the 
higher side via generator or solar (AC coupled w/SolarEdge 6kW and DC 
coupled with an FM 80), they would start to get pulsating lights 
similar to symptoms of other older inverters when using a generator 
for charging. The solution for this pulsation has usually been to 
kick back the AC charge amperage just enough so the pulsating calmed 
down to a tolerable inconsequential level.  And that worked in this 
case as well.
However, a few weeks ago, the pulsating became more noticeable and 
has now become fairly intolerable.  To my knowledge, no settings 
changes we made within the previous year, and these clients would be 
loath to make any changes, so I doubt there were any. More puzzling 
is the pulsating has started to happen at seemingly random times not 
related to charging.  It happens at night or pre-dawn mornings 
without the generator, or during the afternoons with solar charging. 
And it is getting progressively worse.

Anyone have any thoughts on why that would start getting worse now?
Howie

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[RE-wrenches] Fronius PRIMO 5100

2023-07-03 Thread Chris Daum via RE-wrenches 
Hi folks:
 
Anybody got one of these, or know where I can get one?  Please contact me off 
list.
 
Have a happy and safe 4th!
 
Chris Daum
Oasis Montana Inc.
406-777-4309
406-777-4309 fax
www.oasismontana.com   
 
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Re: [RE-wrenches] Inverter output fluctuations

2023-07-03 Thread Dave Angelini Offgrid Solar via RE-wrenches 


I think I would try eliminating things. Turn off the AC coupling for a 
few days and get results. Turn of DC solar and get results. Measure AC 
voltage with a scope or just observe voltage during the flicker. Are all 
of the lights flickering? Are they on dimmers?  Are there any loads 
failing that could be the source? Is the output with-in spec? Rock solid 
60 HZ right.


Do an AC bypass of XW with the genset and check for flicker symptoms.

Are they on Insight? They really need it for you to monitor.  Are there 
any faults, warnings or events ? Check history.  There are a few 
settings in the old XW+ that could have been glitched by a surge or 
nearby lightning strike.


XW+ could have a damaged FET. Open the unit and do a  visual.
There would be a smell and transistor fragments on the bottom right side 
of the power bridge. 90% of XW failures have visual evidence.


While you have it open, Check the DSP sensing and control board, both 
LEDs (light-emitting diodes) D24 and D25 are on.


Last thing is a DC power down of the unit and the DC buss for 5 minutes. 
 If that does not work, then a reset to factory values.
This is off an old list I got from Support many years ago and combined 
with my findings over the years. Really rare for this kind of weirdness 
and why it would be getting worse without visual evidence.


Good Luck Howie!

Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridso...@sti.net
text 209 813 0060

On 2023-07-03 12:42 pm, Howie Michaelson via RE-wrenches wrote:


Hi All,
I upgraded an old clients' off-grid system about five years ago to a 
Schneider XW6848+ and 2 Blue Ion 2.0 cabinets (32kWh). When the 
batteries were moving toward full, if the charge rate was on the higher 
side via generator or solar (AC coupled w/SolarEdge 6kW and DC coupled 
with an FM 80), they would start to get pulsating lights similar to 
symptoms of other older inverters when using a generator for charging. 
The solution for this pulsation has usually been to kick back the AC 
charge amperage just enough so the pulsating calmed down to a tolerable 
inconsequential level.  And that worked in this case as well.
However, a few weeks ago, the pulsating became more noticeable and has 
now become fairly intolerable.  To my knowledge, no settings changes we 
made within the previous year, and these clients would be loath to make 
any changes, so I doubt there were any. More puzzling is the pulsating 
has started to happen at seemingly random times not related to 
charging.  It happens at night or pre-dawn mornings without the 
generator, or during the afternoons with solar charging.  And it is 
getting progressively worse.

Anyone have any thoughts on why that would start getting worse now?

Howie
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[RE-wrenches] Inverter output fluctuations

2023-07-03 Thread Howie Michaelson via RE-wrenches 
Hi All,
I upgraded an old clients' off-grid system about five years ago to a
Schneider XW6848+ and 2 Blue Ion 2.0 cabinets (32kWh). When the batteries
were moving toward full, if the charge rate was on the higher side via
generator or solar (AC coupled w/SolarEdge 6kW and DC coupled with an FM
80), they would start to get pulsating lights similar to symptoms of other
older inverters when using a generator for charging. The solution for this
pulsation has usually been to kick back the AC charge amperage just enough
so the pulsating calmed down to a tolerable inconsequential level.  And
that worked in this case as well.
However, a few weeks ago, the pulsating became more noticeable and has now
become fairly intolerable.  To my knowledge, no settings changes we made
within the previous year, and these clients would be loath to make any
changes, so I doubt there were any. More puzzling is the pulsating has
started to happen at seemingly random times not related to charging.  It
happens at night or pre-dawn mornings without the generator, or during the
afternoons with solar charging.  And it is getting progressively worse.
Anyone have any thoughts on why that would start getting worse now?
Howie
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