Phase symbols
Phase symbols
(OP)
What is the symbol when the phases switches with one another? What does it represent?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
Download nowINTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: Phase symbols
RE: Phase symbols
The concept of transposition is relevant for HV overhead lines to balance the voltage between phases. For lower voltage usually line transposition is not required
RE: Phase symbols
The primary voltage on the auxiliary transformer unit no. 1 is 14.4kv with a secondary voltage of 2400V. I'm thinking this might be an iso phase bus where it is going to a conduit. Perhaps the notation for the phase changes is just to notify field personnel to test the lines and make sure the proper phases are connected on the other end. This symbol has been used for a low voltage as well, where it was going from a 480V control center to a 480V control center emergency section.
RE: Phase symbols
The "symbol" is not an actual symbol, it's just three lines crossing each other.
I attached an alternative to how to draw the circuit.
-SB
RE: Phase symbols
RE: Phase symbols
RE: Phase symbols
It would be interesting to know what happens further to the right.