Long conductor sizing for motor
Long conductor sizing for motor
(OP)
Never done this before as I am an electronics guy. Need to size an Aluminum conductor to feed a 3ph induction motor that is 550 meters (1800 feet) away. Motor is 600v and faceplate current says 85 amps. Power factor 80%. Allowed 5% voltage drop on the line. What size of conductor do I need? I did some preliminary calculations and came up with 3/0 but that seems too small for this long of a run.
Thanks,
Chris
Thanks,
Chris






RE: Long conductor sizing for motor
RE: Long conductor sizing for motor
Bill
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"Why not the best?"
Jimmy Carter
RE: Long conductor sizing for motor
That will depend on whether it is installed where copper thieves can get to it.
RE: Long conductor sizing for motor
I did not think about that. Thieves for the cables to the motors we build would either need to be scuba diving pirates (ROV motors) or willing to pull the same length of pipe out of a hole (deep well submersible).
RE: Long conductor sizing for motor
RE: Long conductor sizing for motor
Waross: Thanks for that rule of thumb. I will keep it in mind if I ever need to size aluminum wire.
RE: Long conductor sizing for motor
http://findarticles.com/p/articles/mi_m0BPR/is_10_...
RE: Long conductor sizing for motor