U & Uo

[chloebear]

Ok stop giggling now - what's the difference between U and Uo for the supply charactristics?????

 

[Guest123]

U = voltage between lines, N/A on single phase installations.

Uo = voltage between line & earth.

 

[chloebear]

Thanks lenny (for not laughing, that is)

 

[Jimmy Boy]

I'm not laughing I had to brush up on this last week for filling out Greens, so well done for bringing it up, Lenny I have seen reference to Uo as also being a L/N value on TNCS/PME your thoughts ?

ATB S

 

[telectrix]

is that because , on TNCS systems, the values of L/N and L/E should be the same, as the neutral is earthed by DNO

 

[Guest123]

Uo on a PME, essentially the same conductor so in theory should be identical readings.