Is anyone permitted to answer this or is there a one week hold for geezers on this question as well?Not an answer but a question, what do you call the 3 phases?
A, B, C
1, 2, 3
X, Y, Z
H1, H2, H3
Curlley, Larry, Moe
Other?
I don't think I've ever called them anything. I'd likely always refer to them by however they are labeled for what I am working on. Recently the only designation I've seen is the A, B, C on my dimmer pack (connected to service with at Blue 3P+N+E IEC 60309), so I'd be most likely to refer to phases as A, B, and C. If I were working with dimmers with color coded conductor connectors, I would likely refer to phases by color (Red, Blue, and Black). As I've never used three phase motors, I haven't ever been concerned with the direction of phase rotation.Not an answer but a question, what do you call the 3 phases?
A, B, C
1, 2, 3
X, Y, Z
H1, H2, H3
Curlley, Larry, Moe
Other?
I would not be surprised at all to see Black, Red, Blue. In single phase wiring I have seen, the hot is usually black with red added when there is a second hot. Anyone starting from that could naturally think of blue as the third hot when they encounter three phase.I believe I have seen Americans using Black, Red, Blue.... So watch out for that.
One cannot move ONE leg without disturbing another. "Swap any two legs" is more properer, I think.As stated a motor will spin backwards if the phases are not in the correct order. Move ONE leg and fixed.
Hmm . . . I think I've just been confused with L. Ron Hubbard of Dianetics & Scientology founding fame.Correct, @damjamkato . Now, can you tell us how these switches work/don't work before I summon @LRonHebbard (the question suggestor)?
If I recall correctly, the gears driving the limit switch shaft are controlled by the direction of the motor. Two nuts travel on the shaft, representing the upper and lower limits. If a nut hits the end of travel, it open the circuit, stopping the motor. However, the upper limit circuit is only active when pressing up on the controller, and the down when pressing down.Correct, @damjamkato . Now, can you tell us how these switches work/don't work before I summon @LRonHebbard (the question suggestor)?
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