What do you call the 3 Phases

[davidbeach]

As I read the various threads here I see many different ways of describing the same thing. I'm curious, what do you call the three phase where you are? Any other terminology differences would be nice also.

I'll start:

In the United States, 3 Phases - A, B, C
'wye' is more commonly used than 'star'
'grounding' is much more common than 'earthing'

Anything else?

 

[briand2]

This is the UK calling...

We call them R, Y, B (after their colours; Red, Yellow, Blue). I served on a merchant ship (some years ago) where they were marked T, S and R (I don't know why).

We talk about "star" connections, but then we refer to transformers as "DY11", etc, just like everyone (?) else!

We definitely talk about "earthing" rather than "grounding".

We also talk about "current carrying capacity" rather than "ampacity" of cables.

Cheers,

Brian

 

[piterpol]

Japanese: U, V, W
Europeans: R, S, T, as well.
Americans: 1, 2, 3, as well.
Moreover, the characters can be upper case or lower case.
Regarding ground fault types: A-G, or A-N, or A-E, etc.

 

[busbar]

On A, B, C versus R, Y, B ...referring to "B-phase" has an entirely different meaning on opposite sides of the pond. "R-S-T" is another convention outside the North-American continent.

{Er, 1-2-3 may be slightly more universal.}

 

[jbartos]

Suggestion: Transformers may have terminals marked X1, X2, X3, X0, for an appropriate alignment of phases called A,B,C, and neutral N, or R,S,T, and neutral, or etc. Everyone seems to know this one. Motors, may have their terminal blocks marked T1, T2, T3, and starter L1, L2, L3 in addition to T1, T2, T3. Again, there appears to be no problem.

 

[busbar]

Aside — For ANSI transformer hi sides, terminals {bushings} are H1, H2, H3, (H0) but they don’t always directly correspond to Aø, Bø, Cø.

 

[MarkAthay]

All within the same utility I've seen:

1, 2, 3
A, B, C
Red, White, Blue

Add onto this the transformer indications of H1/X1, etc. 123 or ABC are the two most common.

Mark in Utah

 

[jbartos]

Suggestion: There is also a phase designation X, Y, Z; especially, some European Country have been using these