Can there ever be 55 ohms resistance between neutral & phase of a 230 V single phase

Status
Not open for further replies.

phatcreators

Full Member level 5
Joined
Sep 2, 2011
Messages
315
Helped
24
Reputation
48
Reaction score
24
Trophy points
1,298
Activity points
3,458
Can there ever be 55 ohms resistance between neutral & phase of a 230 V single phase

Can there ever be 55 ohms resistance between neutral & phase of a 230 V single phase system or in a circuit or in any closed loop ?

thanks
 

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.
 

Re: Can there ever be 55 ohms resistance between neutral & phase of a 230 V single ph

No need for that, it’s enough to leave some 100 watt bulb connected in the circuit. :-D
 
Re: Can there ever be 55 ohms resistance between neutral & phase of a 230 V single ph

Yes if there is a load on that circuit, 230/55 = 4.2A ~ 1KW load. Did you leave the workshop heater switched on?
Frank

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.
 
Re: Can there ever be 55 ohms resistance between neutral & phase of a 230 V single ph

what do you mean by insulation fault ?

Do you mean that a wire or some wires' insulation got damaged and its touching to the machine' panel or some metallic part ?

thanks a lot though
 

Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…