by Denver Dude
When a locomotive (or series of them) can't pull the grade, I am under the impression that it's mostly about adhesion, weight on the drivers, trailing weight, grade percent, etc.
But is it possible that that the prime mover, generator/alternator, and traction motors are just maxed out and can't turn at all?
Also, I found the video below. Some commenters are saying that the locomotives can overheat and will de-rate if in run 8 for too long, at too low of a speed. I don't think that's true. I am guessing that the AC traction motors are fine either way, and it's all the same to the diesel engine when in full power, whether the locomotive is moving 70 miles per hour or 12.
Correct?
https://www.youtube.com/watch?v=rFnNFuCOxZM" onclick="window.open(this.href);return false;
But is it possible that that the prime mover, generator/alternator, and traction motors are just maxed out and can't turn at all?
Also, I found the video below. Some commenters are saying that the locomotives can overheat and will de-rate if in run 8 for too long, at too low of a speed. I don't think that's true. I am guessing that the AC traction motors are fine either way, and it's all the same to the diesel engine when in full power, whether the locomotive is moving 70 miles per hour or 12.
Correct?
https://www.youtube.com/watch?v=rFnNFuCOxZM" onclick="window.open(this.href);return false;
Last edited by Denver Dude on Tue Dec 23, 2014 11:13 am, edited 1 time in total.