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muhammed avatar image
muhammed asked

Generator Synchronizing Issue

I have 6 x 8kVA Quattros and a 30kVA Generator. The problem I have is the generator often does not synchronize with the generator. It continuously tries to, finally it does for about 5-10 minutes before kicking off again. I have checked the settings and all seems to be in order. Could someone kindly assist.

Thanks

MultiPlus Quattro Inverter ChargerGenerator
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Philipp Trenz avatar image
Philipp Trenz answered ·

This sounds like a typical Loss of Mains issue, please take a look here, esp. point 2.6: https://www.victronenergy.com/live/ve.bus:grid-codes-and-loss-of-mains-detection

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muhammed avatar image muhammed commented ·
Hi @Philipp Trenz

I have checked that. Not related to LOM

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Alexandra avatar image
Alexandra answered ·

@Muhammed

More information is required here.

Have you followed the suggestions here?

Are you using the ESS assistant? Do you have a grid code?

Have you set the input current limit down per phase? The generator is a bit small for the system. Is the limit per phase less than 30A?

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muhammed avatar image muhammed commented ·

@Alexandra

I did follow those suggestions. I updated the system today before i posted on here.
I do have an ESS setup. Grid code is set to "Other"

yes, the limit is currently set to 20Amps per phase.

Something we noticed this afternoon which i found to be strange, the toggle on the top left corner of the VRM dashboard is for adjust battery % if set to partially discharge batteries. There is a Quattro settings which consists of "ON, Charge Only, Inverter only and OFF"victron-lincor.png

1. Bypassed the system for the loads to run purely on gen power.

2. The gen was still live on AC Input 2

3. Mode was set to Charge Only

4. System synchronized, and charged the battery for over an hour.(note , the gen was feeding the load as well at this point)

5. The moment I changed mode to ON, it kicked off the generator.


does the above give you any further indication of what it could be

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Jonathan Walton avatar image
Jonathan Walton answered ·

Hi, how long is the cabling from the generator?

You mentioned that you have other sites, is the generator further away from the Quattro’s on this system?

Im just thinking of potential issues other than settings?

Kind Regards

Jonathan

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muhammed avatar image muhammed commented ·
Hi @Jonathan Walton

not long at all. Maximum about 15m.

Other sites it is further away.

The reason I think its a setting related to the ESS is that when the system is on Charge Only, it is able to synchronize and charge the batteries without any issues. Additionally, while charging the batteries, it is feeding the load as we bypassed the output from the inverter directly to the generator. The moment we change the inverter to On mode, the kicks of the generator

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