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Schneider technical help plz

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Urge38

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Joined
Mar 18, 2023
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Hi Guys

I was just about to fire up the Schneider Conext XW for the first time, but noticed something I would like confirmation on plz

The Schneider has three terminal blocks, AC load/grid in/generator in.
all the neutrals are common (they are connected together even though they have individual terminals)

what I am unsure about is why I have continuity from AC load positive terminal to all the natural terminals??? the positives on grid in and gen in are not connected together and no continuity exists.

I am thinking, as it is a transformer-based inverter, the positive and neg are linked together as its a winding/coil, and as all the naturals are all common, I now have continuity from AC load positive to all neutrals.

am I correct??? and I dont have nothing to worry about??

I have nothing connected to the Schneider, I was simply playing around with a multimer and making sure I had it all worked out before connecting things up
 
Since its split phase AC there is no Pos or Neg. Its L1, L2, N and Ground. L1 & L2 are also called "Hot". I'm sure everyone on the forum knows what you mean but terminology is important especially when problem solving.

Yes, you are measuring the static resistance of the secondary transformer coil which should be fairly low since it can deliver up to 12kW at 240V.
 
Kind of a neat find. I still find it crazy that when you look at the windings of a transformer, the wire forms a short circuit, and then because of magnet magic it doesn't.

Do you guys get the same L1/L2/N Conext that we do in the US? Or just L1/N? Maybe you have to use jumpers.
 
BentleyJ said:
Since its split phase AC there is no Pos or Neg. Its L1, L2, N and Ground. L1 & L2 are also called "Hot". I'm sure everyone on the forum knows what you mean but terminology is important especially when problem solving.

Yes, you are measuring the static resistance of the secondary transformer coil which should be fairly low since it can deliver up to 12kW at 240V.
Click to expand...

Is it split phase ? Because I'm pretty sure OP is in the UK , and doesn't need split phase ?
 
hwy17 said:
Do you guys get the same L1/L2/N Conext that we do in the US? Or just L1/N? Maybe you have to use jumpers.
Click to expand...

We use single phase 240v for pretty much everything

Pos and neg ( I guess you'd call it L1 & N ) and an earth that is only powered when there's a fault
 
SamG340 said:
We use single phase 240v for pretty much everything

Pos and neg ( I guess you'd call it L1 & N ) and an earth that is only powered when there's a fault
Click to expand...
And what does your Conext XW have? I'm curious if they make a separate single phase only model, or if you use the NA model in single phase mode.
 
hwy17 said:
And what does your Conext XW have? I'm curious if they make a separate single phase only model, or if you use the NA model in single phase mode.
Click to expand...

Hopefully OP can clear it up . @Urge38 can you confirm did you buy a single phase unit ?
 
Now my head is spinning lol

yes, I can confirm, I purchased a 230v 50hz uk inverter.

Ok so I switched it on, I have 230v between load pos and neg.

BUT I am getting 110v at my multi meter from grid in pos to earth, and also its reading the same from gen in pos to earth

from grid in natural to earth I get 100v and the same from gen in neutral to earth

why am I able to measure voltage at a input terminal???

to confirm, the only thing that is connected is my batteries to the inverter as its means of power.
 
Urge38 said:
Now my head is spinning lol

yes, I can confirm, I purchased a 230v 50hz uk inverter.

Ok so I switched it on, I have 230v between load pos and neg.

BUT I am getting 110v at my multi meter from grid in pos to earth, and also its reading the same from gen in pos to earth

from grid in natural to earth I get 100v and the same from gen in neutral to earth

why am I able to measure voltage at a input terminal???

to confirm, the only thing that is connected is my batteries to the inverter as its means of power.
Click to expand...

Confusing to say the least!

Schneider are a top notch brand, the chances of there being something wrong out the box is slim , but it can happen

Personally I'd wire it all up and see what happens ? get it running

But if you're worried you could always contact the manufacturer?
 
Can we get a picture of the AC Terminals in your Conext XW?

I don't doubt that it is a 230v/50hz model, but I'm curious whether they produce an entirely separate configuration, or just ship a split phase inverter in single phase configuration. If it's the latter there are likely complicated reasons why you might see 115v design artifacts.

Everybody please stop calling it positive.
 
SamG340 said:
Ok if you stop dropping the u out of every word and start calling the a railWAY, not road..
, and say path not sidewalk ect ect lol.

Pos and neg for AC 240v is the common term in the UK
Click to expand...
Lol, I will give you aluminium and crisps as a concession, because they are fun.

I assure you it is more correctly live, hot, line, or phase everywhere on the planet. Actually hot might just be a US thing.
 
hwy17 said:
Lol, I will give you aluminium and crisps as a concession, because they are fun.

I assure you it is more correctly live, hot, line, or phase everywhere on the planet. Actually hot might just be a US thing.
Click to expand...

Hahaha


I think hot is just as confusing, cause AC goes down both live and neutral equally, so they are both hot ??
 
SamG340 said:
Hahaha


I think hot is just as confusing, cause AC goes down both live and neutral equally, so they are both hot ??
Click to expand...
Well you guys are the one with a blue neutral, clearly to indicate it's temperature I'd say. The brown hot doesn't make any sense though, unless it's to warn about another effect of touching it...
 
hwy17 said:
Well you guys are the one with a blue neutral, clearly to indicate it's temperature I'd say. The brown hot doesn't make any sense though, unless it's to warn about another effect of touching it...
Click to expand...

We did it so the 1 in 1000 colour blind people don't get mixed up... . But I don't think the fact it's now more confusing for the other 999 of us wasn't looked at ?
 
We almost got double decker buses in san francisco, but it was decided that it was unfair to wheelchair users that they wouldn't get to see the view from upstairs.
 
Give me a second, I will get a photo

but yes, to confirm, I am in the uk and we do say, pos and neg

Please give a few minutes

No one post until you see all 12 photos

It will take me a few minutes to up load them plz
 
Use a good old-fashioned light bulb, you know the ones that will burn your kids and destroy their lives forever to see whether it is an actual real voltage or just a ghost voltage between any two terminals you like. Digital multimeters are great but they can read voltage where there really isn't anything except leakage through capacitors etc. Crack out the AVO 8 LOL
 
That's all my photos

What do you guys make to the voltage

When you only see one meter terminal in the photos, the negative is actually in the earth just to the bottom left off the photos
 

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It's beyond my firm understanding of the internals, but I still wonder if that 120 is an artifact of a repurposed split phase internal transformer.

XW in US does not contain any neutral ground bonding internally, ever. If it is the same there, I would guess that these are floating artifacts and once the neutral ground bond outside of the XW is present it will pull most of these voltages into ~230v alignment.
 
Had a customer complain they were getting electric shocks from the pinball machines way back when, sure enough it was true but it was only 60 volts ac between two machines next to each other. Turns out one of the pinball machines had lost its ground wire and because of the strange USA to UK wiring methods we only got a 60 volt shock.
 
hwy17 said:
It's beyond my firm understanding of the internals, but I still wonder if that 120 is an artifact of a repurposed split phase internal transformer.

XW in US does not contain any neutral ground bonding internally, ever. If it is the same there, I would guess that these are floating artifacts and once the neutral ground bond outside of the XW is present it will pull most of these voltages into ~230v alignment.
Click to expand...

at present, I have no natural and ground bond,

I have never come across this in domestic UK electrical home systems.

this is my first inverter off grid installation.
 
Quattrohead said:
Had a customer complain they were getting electric shocks from the pinball machines way back when, sure enough it was true but it was only 60 volts ac between two machines next to each other. Turns out one of the pinball machines had lost its ground wire and because of the strange USA to UK wiring methods we only got a 60 volt shock.
Click to expand...

fixing arcade machines, was my first job after leaving school some 30 odd years ago, I loved that job.
we used to service machines for a string off pubs.
 
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