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"AC6000CW Tractive Effort"

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Meeshu (15 posts)
Jan-17-02, 01:35 AM (EST) "AC6000CW Tractive Effort" Can anyone verify the actual Starting and Continous tractive effort values for a GE AC6000CW locomotive?I have conflicting information on this; I have - 90/83 tons and 100/86 tons (90 and 100 are the starting values, 83 and 86 are the continous values).Any help is appreciated.Thanks. Alert Edit | Reply | Reply With Quote | Top
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Subject Author Message Date ID RE: AC6000CW Tractive Effort derekmorton Jan-17-02 1 RE: AC6000CW Tractive Effort Meeshu Jan-17-02 2 RE: AC6000CW Tractive Effort plainsman Jan-18-02 3 RE: AC6000CW Tractive Effort Meeshu Jan-19-02 4

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derekmorton (285 posts)
Jan-17-02, 02:18 AM (EST) 1. "RE: AC6000CW Tractive Effort" The figures I have look like marketing figures.mte 200000 LBS
cte 166000 LBSDerek EngMod@leder.com.au Remove | Alert Edit | Reply | Reply With Quote | Top
Meeshu (15 posts)
Jan-17-02, 09:36 PM (EST) 2. "RE: AC6000CW Tractive Effort" Derek,Thanks for your reply.It is often hard getting this sort of information (maybe I am not looking in the right places?), and it is harder still to verify the information.Cheers. Remove | Alert Edit | Reply | Reply With Quote | Top
plainsman (522 posts)
Jan-18-02, 07:40 AM (EST) 3. "RE: AC6000CW Tractive Effort" LAST EDITED ON Jan-18-02 AT 08:12 AM (EST)The best observed in the real world I have seen reported was just over 188,000 pounds. This is about 2400 pounds more than the best SD90Mac reports I have heard about. The 166,000 CTE is good data. This is at 11.6 MPH and 1790 amps.
The MTE (STE) is dependant on weight and conditions. A heavier locomotive will develop more MTE but at a price. The wear on the rails increases and the locomotive is less efficient than a lighter one once the train is moving (you have to lift the extra weight over grades, which lessens trailing weight capability, as CTE is not affected by weight, but is a function of the traction motors ability to stand current input). The typical weight is between 420,000 and 427,000 pounds. Most RRs dispatch AC power at about 36% adhesion. Thus, for real world reliable dispatch conditions,you can only count on about 154,000 pounds from either locomotive for pulling ability over the road.
Hope this helps,
Bob Remove | Alert Edit | Reply | Reply With Quote | Top
Meeshu (15 posts)
Jan-19-02, 04:39 AM (EST) 4. "RE: AC6000CW Tractive Effort" Bob,Thanks for your information.Actually, I have been interested in and studied the physics of train and locomotive motion for quite a number of years now. I even created an equation (yet to be finalized) which describes the motion of trains.Anyway, it is difficult to find decent (technical) information on locomotives (for example - the torque/speed characteristics of traction motors).Cheers. Remove | Alert Edit | Reply | Reply With Quote | Top

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