# How does circuit completes when physical ground(earth) is used as neutral? [duplicate]

In my locality there is no neutral wire. Our transmission company runs only 3 wires(all line/phase) and no neutral(4th wire) at all. Out of three, one runs to our houses. I know it sounds incorrect, but this is the case, they are saving the expense on neutral wire.

Here we use earth wire(physicaly connected to earth) in place of neutral . Each house has its own earthing/grounding. So our earth is our neutral. No difference at all. Everything works just fine, no problem at all.

I know that two wires with different potential are required to create a potential difference. I also understand that we can run loads between two phases. But in this case there is only one. Here we are running loads between a phase and a wire physicaly connected to earth.

I know that current flows in closed loop(it goes back to the source). But in this case, there is only one wire coming from sub-station and another is just physicaly grounded, how the circuit even completes? Where is the closed loop?

• en.wikipedia.org/wiki/Three-phase_electric_power – Eugene Sh. Apr 11 '18 at 20:31
• This sounds counter intuitive you can run loads between two phases and so do not require neutral but a single wire does not make sense. Where do you live so I can check details of your local electricity supply. – Warren Hill Apr 11 '18 at 20:33
• @Eugene Sh. Kindly read the "detail" of the question. – CodeChari Apr 11 '18 at 20:37
• Also this Wikpedia article: Single wire earth return – The Photon Apr 11 '18 at 20:55
• Considering the earth as a return path, its resistivity is not so great, but its cross-sectional area is pretty high. – The Photon Apr 11 '18 at 20:56