netural output inverter

[alkafak]

Hello Everybody

 

please help me how to thread the neutral output inverter, i have test the neutral inverter with test pen and i saw light the pen like phase

alkafak

[Gabriel_2018]

Hi alkafak,

The difference from neutral and phase id the first is usually grounded. So the current passing trough neutral is the same in phase, so you will see light in pen.

[alkafak]

Hi Javi,

so far i know, the Neutral shoul be 0V or maybe 0.5V, i have measured neutral-ground and draw 120V , this not normal i think

 

alkafak

[Gnome]

Really low cost inverters use two live phases 180 degrees out of alignment. Meaning 110v out of phase on both the live and neutral which would give you a phase to phase voltage of 220v

If this doesn't make sense to you, don't worry about it, AC power is complicated.

The reason they do this is because it is cheaper to make inverters that output this way.

The downside is, you can't wire it to a house because your neutral can literally kill someone.

So none of the inverters that can be hardwired will be of this type.

[Gabriel_2018]

6 hours ago, alkafak said:

Hi Javi,

so far i know, the Neutral shoul be 0V or maybe 0.5V, i have measured neutral-ground and draw 120V , this not normal i think

 

alkafak

Did you ground neutral?

Are you using IT or TT scheme?

Edited December 25, 2018 by Javi Martínez

[Gabriel_2018]

Can you tell us brand/model?

[alkafak]

Hi Javi,

i dont ground the neutral, other then Line and neutral have a ground the inverter is infini 3kw plus

[alkafak]

8 hours ago, Gnome said:

Really low cost inverters use two live phases 180 degrees out of alignment. Meaning 110v out of phase on both the live and neutral which would give you a phase to phase voltage of 220v

If this doesn't make sense to you, don't worry about it, AC power is complicated.

The reason they do this is because it is cheaper to make inverters that output this way.

The downside is, you can't wire it to a house because your neutral can literally kill someone.

So none of the inverters that can be hardwired will be of this type.

Are You really? how to thread about inverter that type like this

[Gabriel_2018]

7 hours ago, alkafak said:

Hi Javi,

i dont ground the neutral, other then Line and neutral have a ground the inverter is infini 3kw plus

Are you meusuring when inverter is Ongrid or Offgrid?

[Gabriel_2018]

Other thing, did you ground inverter?

[alkafak]

 

33 minutes ago, Javi Martínez said:

Other thing, did you ground inverter?

Measuring on the Dual Mode, aka Hybrid Mode, yes i ground the inverter

[Gabriel_2018]

1 hour ago, alkafak said:

 

Measuring on the Dual Mode, aka Hybrid Mode, yes i ground the inverter

Then, it seems grid is biphase. You could measure Voltage from neutal to ground and phase to ground in AC IN to confirm it.

[alkafak]

3 hours ago, Javi Martínez said:

Then, it seems grid is biphase. You could measure Voltage from neutal to ground and phase to ground in AC IN to confirm it.

I have measured grid viltage phase- ground draw 219v and neutral to ground only 1.4v