I understand DC traction motor engines cannot go through water about 3 inches above rail top to avoid short circuits. Does this same prohibition apply to AC traction motored engines?
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I suspect that it's more about where the motor is located (how high above the rail head) than what power supply the motor takes.
rrman posted:I understand DC traction motor engines cannot go through water about 3 inches above rail top to avoid short circuits. Does this same prohibition apply to AC traction motored engines?
Yes.
Kelly Anderson posted:AC-4's through AC-12's didn't have that problem.
Hi,
Could you explain why wasn't problem. Motors sealed or shielded that water can't enter motors but yet can be cooled?
rrman posted:Kelly Anderson posted:AC-4's through AC-12's didn't have that problem.
Hi,
Could you explain why wasn't problem. Motors sealed or shielded that water can't enter motors but yet can be cooled?
Good grief!!!!
He is joking as, the "AC-4's through AC-12's" were the class designations of the cab forwards on the Southern Pacific Railroad, i.e. STEAM LOCOMOTIVES!
Hot Water posted:rrman posted:Kelly Anderson posted:AC-4's through AC-12's didn't have that problem.
Hi,
Could you explain why wasn't problem. Motors sealed or shielded that water can't enter motors but yet can be cooled?
Good grief!!!!
He is joking as, the "AC-4's through AC-12's" were the class designations of the cab forwards on the Southern Pacific Railroad, i.e. STEAM LOCOMOTIVES!
Hi,
You have to understand, for me, I like to to just watch trains, I am NOT hung up on what they are called, wheel classifications, how many rivets something has, etc etc. I just enjoy trains. Now on the other hand if I were deeply involved and immersed in engines and car trivia, I probably would have known that these were steamers. Not all of us are brains in this stuff, some of us just enjoy what we see for the beauty without trying to classify stuff or remembering who what where why.
I belong to a railfan group and when they show slides almost inevitably , there are arguments over engines types right down to the minutiae of "no the steps are wrong, no the brake cylinder is facing the other way,, no headlight is 6 inches lower/higher, so that makes it a blah blah engine bought from Podunk railroad on afternoon of August 6th 1955". Anymore its gotten to the point that I don't go, as members waste time arguing over trivialities. Me, I just enjoy what ever I see. So therefore, AC dash whatever was meaningless to me (yes I recognize a cab forward and why they were made, but that's the extent of my knowledge).
Sorry to disappoint the 99 44/100 % of the posters here who know this stuff cold.
