VM-3P75CT shows one phase inverted

Q&A and troubleshooting
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1

Hi all,

Triple checked connections and orientation of my clamps, but my VM-3P75CT shows one phase inverted.

To further clutter the situation, L1 in VRM is not L1 on P1.

This could be a seperate issue however. I can simlpy exchange the clamps until I like what I get, but than the phases do not correspond to my 3 Multi RS anymore.

Any idea what to check next?

Thanks ahead, Michael

2

Do you mean the current of one phase is inverted? If so, then reverse the orientation of that current clamp. It’s not unheard of for the internal wiring of a current clamp to be reversed.

3

Thanks Mike, got it working. It appeared to be due to poor closing of one clamps. This is not victrons best product ….. these clips are very poor. Old fashioned tyeraps did the trick.

4

I heard that complaint a lot about these clamps! Tyrap is best option indeed :blush: