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Does neutral earthing cause voltage on neutral?

Does neutral earthing cause voltage on neutral?

Does neutral earthing cause voltage on neutral?

(OP)
Scenario:
If a neutral on a supply cable is earthed back at the supply transformer and this neutral cable core is looped through various metering kiosks before the transformer and the neutral is connected to the frame  of these kiosks is there a voltage on the neutral cable core and hence on the kiosk enclosure?

Thanks

RE: Does neutral earthing cause voltage on neutral?

Same answer as the answer to "is there current in the neutral?"

RE: Does neutral earthing cause voltage on neutral?

The quick answer is no.
After a long explanation the more accurate answer is "negligible".

Bill
--------------------
"Why not the best?"
Jimmy Carter

RE: Does neutral earthing cause voltage on neutral?

In case of phase-to-ground short-circuit in the power supply area the GPR [Ground Potential Rise] could be transferred to the supplied area.
Then it is recommended to ground the neutral at both ends.
 

RE: Does neutral earthing cause voltage on neutral?

Whenever there is single phase distribution, the neutral conductor carries return current to the trafo star point. This means neutral conductor will have some potential which will be transferred to the kiosk metal parts in your case as the neutral conductor is looped to the kiosk body.
Hope I am making some sense.  

RE: Does neutral earthing cause voltage on neutral?

"Voltage" that means "potential difference"  between neutral and ... ground, I think. If -as davidbeach said: "is there current in the neutral?"
so could be a voltage drop -in case of unbalanced three phases distribution or -as rughun said -single phase return current.
But as the kiosk frame is embedded-I hope- that means "grounded" then the voltage drop will be "negligible" as waross said. Am I right?
If the supplied area is well remote in a phase-to-ground short circuit case this "potential difference" may be significant if the "kiosk grounding" is weak.
 

RE: Does neutral earthing cause voltage on neutral?

That is why we use equipment grounding conductors in North America. There may be a small voltage relative to ground at the load end the neutral should not be readily accessible at the load end.  

Bill
--------------------
"Why not the best?"
Jimmy Carter

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