Re: Can there ever be 55 ohms resistance between neutral & phase of a 230 V single ph
Taking your question at face value, the answer is obviously yes. You can insert a resistance of any value between any two points in a circuit. Did you have any particular circumstance in mind?
Re: Can there ever be 55 ohms resistance between neutral & phase of a 230 V single ph
Yes it is possible, particularly in situations (almost all) where supply comes from secondary of a transformer, the resistance you happen to see is mostly contributed by the secondary winding resistance.
when there's no power at all in the circuit ??? no appliance or device is switched on ....... main power is switched off completely ...........
no transformer in the circuit at all
---------- Post added at 14:05 ---------- Previous post was at 14:01 ----------
i'm just talking about a machine & its wiring , when its power off completely .......... where there are contactors, circuit breakers, 3-phase electrical motors, inverters, braking resistors, lighting system on the panel (single phase) , cooling and exhaust fans (single phase 230 V) , heaters , blowers etc .....
Re: Can there ever be 55 ohms resistance between neutral & phase of a 230 V single ph
So you finally asked a more clear question...
I think, you can answer it yourself. You either forgot a load or there's a kind of insulation fault. To find out the reason, you'll need to disconnect individual circuit parts and measure respective resistances.