Neutral Earth - more info

**Dylboy** · 24-Feb-23, 07:52 PM

Hello

So did a test yesterday, after Ians said he measures 9 Amps on a bridge wire (perm one)

I was at a site where by I had a bridge and thought let me put a fuse in to test something before I do the contactor.

So I put a 15A fuse in.

So before fuse and at around mid day I measure 2.3A on the perm bridge, It then went to loadshedding and measure 0A.

I then did the fuse wire and this morning I get a message of Earth leakage trips when power goes or comes back.

I head back and see the 15A fuse has popped.

So in essence when grid is on... Your perm bridge is the better path if the street PEN is shoddy.

So do the contatcor.

Next is to draw and figure out why that bridge which is after the inverter or load side of inverter creates a better N and E than the one at the Tx or kiosk...

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**Dylboy** · 25-Feb-23, 06:38 AM

To add, reason the bridge is there is I had a call from installer saying the Victron relay is giving a ground fault relay error.

Long story short, switched off the relay and put in bridge wire then all sorted in the system worked and the ELU didnt trip.

I thought great, now let's put in the contatcor. Then that is when I did the fuse test thing.

So I think the Victron have that error not that there was a earth neutral issue (also it does not test for that in the new models ) but that it did pick up a voltage and that was the current using the earth's and Neutrals as return and higher earth current.

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