question

explorking avatar image
explorking asked

Skylla-I keeps tripping, new issue, excessive amp draw

We are out cruising in a remote part of The Bahamas and our Victron Skylla-i 24/100 (3) started to trip the breaker. It has progressively gotten worse over the past few days. Victron themselves don't seem to want to help and suggested we contact a local distributor -- hard to do out here.

Here is a graph from our monitoring system showing when the issue started:

graph-charger-issue-historical.jpeg

We did not make any changes to the system. So no additions, configuration changes, or other issues (related or unrelated).

This is a picture from the charger with the meter:

20220503-180721.jpg

The summary of the reading before tripping was...

Input: 20.10A @ 240V
Output 1: 37.88A
Output 2: 81.7A
Output 3: 3.57A

Combined output: 123.15A -- The charger does not show more than 100A output on the network (connected to our NMEA 2000 network).

This is a graph from when it first happened:

april-28-2022.jpeg

This was a few days later:

graph-recent-event.jpeg

The settings were not changed, and nor were the batteries. Here's a picture of the charger with settings as it was installed in Florida.

20220430-153928.jpg

Thoughts?



chargerSkylla
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Alexandra avatar image Alexandra ♦ commented ·

@Explorking

Things work loose, get corroded etc. Ambient temperature differences?

There may other potential changes that could happen even internally in the batteries.

Is it your input breaker tripping or output?

It could be over current or thermal.

Are you charging one bank or separate banks?

What voltage are set or meant to be set?

Is the charger reaching or maintaining or outputting the correct target voltages?

How is the skylla being powered?

Have you checked all terminal and wiring connections to see if anything is loose, damaged or corroded? Especially around the circuit breaker that is tripping.

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1 Answer
Paul B avatar image
Paul B answered ·

I suspect that your input breaker is to small for the job as you dont mention its size or it could be failing the breaker should be a min 25 amps


1651916928074.png


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Related Resources

Additional resources still need to be added for this topic

Skylla-IP65 product page (12v, 24v)

Skylla-i product page (24v)

Skylla-TG Charger product page (24v, 48v)

Skylla-TG GMDSS product page (24v)


Additional resources still need to be added for this topic