What do you call the 3 Phases
What do you call the 3 Phases
(OP)
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?
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?






RE: What do you call the 3 Phases
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
RE: What do you call the 3 Phases
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.
RE: What do you call the 3 Phases
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.}
RE: What do you call the 3 Phases
RE: What do you call the 3 Phases
Aside — For ANSI transformer hi sides, terminals {bushings} are H1, H2, H3, (H0) but they don’t always directly correspond to Aø, Bø, Cø.
RE: What do you call the 3 Phases
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
RE: What do you call the 3 Phases