AC Current sensor giving the wrong value

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Pontus Lindberg asked May 4, '24

AC Current sensor giving the wrong value

I have a 3-phase ESS-system with an AC-coupled PV-system.

I am using 3 AC current sensors ( https://www.victronenergy.com/meters-and-sensors/ac-current-sensor), connected to the temp-inputs on the Multiplus'es to show the values from the PV-system.

The problem is that my Victron system gives me way to high values.

In this very moment, my PV-inverter is producing 14200W, but according to Victron its about 21200W.

How can I calibrate this?

Multiplus-II AC PV Coupling

skarmbild-2024-05-04-111629.png (136.1 KiB)

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duivert answered · May 04 at 01:04 PM

There is the problem, manuals says 1,2,3 on for 7kw not 4 :)

img-6344.jpeg (207.1 KiB)

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Answer 1 · 2024-05-04T12:19:56Z

duivert answered · May 04 at 12:19 PM

Are they setup right? Dipswitches set right? Wired right?

There normally are not very accurate/slow but this is a bit to much

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Pontus Lindberg commented · May 04 at 12:30 PM

I hope so. The dipswitches are all set to 7kW (no. 4 on, rest off) as my total solar is about 20kW.

Wiring should be correct aswell.

I havent really found any other settings for these, are there?

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Answer 2 · 2024-05-05T10:58:16Z

Pontus Lindberg answered · May 05 at 10:58 AM

Yes! That was it. I missunderstood this image and had it set up the exact opposite :)

image1.jpg (16.3 KiB)

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duivert commented · May 05 at 11:43 AM

Yes its a misleading image :), glad its solved!

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