irregular generator charging

A place where users can meetup with other FlexPower One users and can find support for one another. A great place for people who have not purchased the FlexPower One yet to look up information.

irregular generator charging

Postby SEYLIONE on Mon Oct 29, 2018 12:43 pm

Hi folks,
My 1kWp is managed by FP1-34 (charge controler, inverter charger, battery monitor, hub and Mate3)
When loading with a generator (SDMO Inverter 3000) that generator and the general load voltage go up and down every 10s. or so, voltage between 180 and 230 by 1s. steps.

That is not accepted by opther machines fed by the inverter.

Any idea?
Thanks
Lionel
User avatar
SEYLIONE
Forum Guru
 
Posts: 123
Joined: Thu Mar 22, 2012 9:16 am
Location: Serre-Chevalier, France
My RE system: Off grid house in the southern french Alps 1740m above sea
level. Commissioned 1st Jul 2012.

4 Bosch 245Wp Panels, 12 OPzS 2V 1 220Ah batteries
Management by OutbackPower: FP1-34 including:
FlexMax 80 Charger, GVFX3024E Converter-charger,
FlexNet DC, Hub, Mate3.

Monitoring every 3 hours over Internet (lsdx.eu/GPV_ZSDX)
by 3G managed by a local microcomputer and router.

Re: irregular generator charging

Postby Kurt Lundquist on Tue Oct 30, 2018 7:44 am

When the voltage swings do you notice the FP1 disconnecting from the generator? You would see the AC IN light go away and the Inverter light turn on.

What is your AC input amps setting on the inverter?

What are the charging amps?

Is this new behavior or has this always happened when the generator runs?

Have you tried running a different load on the generator separate from the FP1?

If you turn off the AC output loads does the problem still happen?

What happens when you turn off the charger on the inverter?

Make sure to check all wires and breakers for loose connections. A loose neutral wire or multiple neutral to ground bonds can cause this behavior.

When was the last generator maintenance?

Thanks,

-Kurt
Kurt Lundquist
Renewable Energy Project Engineer
http://alphaenergy.us/
User avatar
Kurt Lundquist
Alpha Energy Engineering
 
Posts: 1094
Joined: Tue May 31, 2011 7:23 am
Location: Arlington, WA
My RE system: VFX3524, Mate3, 200Ah 24V AGM Battery Bank

Re: irregular generator charging

Postby SEYLIONE on Tue Oct 30, 2018 11:12 am

Hi Lundquist,
I finally found the answer by thorough testing (lucky I am retired!):
Though my gen is supposed to give 3kW practically it is only 1kW
All is OK with a maximum input amperage of 4 AAC which is enough to put up my bats at a correct level!
The lesson is that I should never again opt for minimum power levels for gens or inverters!
Thanks for your help
Lionel
User avatar
SEYLIONE
Forum Guru
 
Posts: 123
Joined: Thu Mar 22, 2012 9:16 am
Location: Serre-Chevalier, France
My RE system: Off grid house in the southern french Alps 1740m above sea
level. Commissioned 1st Jul 2012.

4 Bosch 245Wp Panels, 12 OPzS 2V 1 220Ah batteries
Management by OutbackPower: FP1-34 including:
FlexMax 80 Charger, GVFX3024E Converter-charger,
FlexNet DC, Hub, Mate3.

Monitoring every 3 hours over Internet (lsdx.eu/GPV_ZSDX)
by 3G managed by a local microcomputer and router.

Re: irregular generator charging

Postby Kurt Lundquist on Tue Oct 30, 2018 12:46 pm

I'm glad you found the problem. Generators are often sold at the maximum surge power rating so it is deceptive if you try to run a constant load.

-Kurt
Kurt Lundquist
Renewable Energy Project Engineer
http://alphaenergy.us/
User avatar
Kurt Lundquist
Alpha Energy Engineering
 
Posts: 1094
Joined: Tue May 31, 2011 7:23 am
Location: Arlington, WA
My RE system: VFX3524, Mate3, 200Ah 24V AGM Battery Bank

Re: irregular generator charging

Postby SEYLIONE on Tue Oct 30, 2018 12:53 pm

Thanks,
Thread to be closed
Lionel
User avatar
SEYLIONE
Forum Guru
 
Posts: 123
Joined: Thu Mar 22, 2012 9:16 am
Location: Serre-Chevalier, France
My RE system: Off grid house in the southern french Alps 1740m above sea
level. Commissioned 1st Jul 2012.

4 Bosch 245Wp Panels, 12 OPzS 2V 1 220Ah batteries
Management by OutbackPower: FP1-34 including:
FlexMax 80 Charger, GVFX3024E Converter-charger,
FlexNet DC, Hub, Mate3.

Monitoring every 3 hours over Internet (lsdx.eu/GPV_ZSDX)
by 3G managed by a local microcomputer and router.


Return to Flex Power One

Who is online

Users browsing this forum: No registered users and 1 guest