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Post by superteacher on Jul 8, 2018 8:43:47 GMT
Shut down the eastbound service for 90 minutes abd required a push out!
Was the train gapped across the junction?
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Post by Dstock7080 on Jul 8, 2018 13:21:33 GMT
Shut down the eastbound service for 90 minutes abd required a push out! Was the train gapped across the junction? Yes, eastbound District train stalled at inner home signal EE204, ERU attended but unable to assist, so following District train coupled-up and pushed train fully into eastbound platform. |
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class411
Operations: Normal
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Post by class411 on Jul 8, 2018 15:02:51 GMT
What exactly is meant by 'stalled' in this instance?
An electric motor stalls if there is too much resistance for its available torque and hence it stops rotating.
It's extremely unlikely that all the motors on a S-Stock did that (unless someone welded one of the wheels to the track!)
Or is 'stalled' used in railway terminology for any instance of a motor failing to turn - no power/faulty controls/faulty driver (motor, not train) electronics.
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Deleted
Deleted Member
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Post by Deleted on Jul 8, 2018 15:26:47 GMT
What exactly is meant by 'stalled' in this instance? An electric motor stalls if there is too much resistance for its available torque and hence it stops rotating. It's extremely unlikely that all the motors on a S-Stock did that (unless someone welded one of the wheels to the track!) Or is 'stalled' used in railway terminology for any instance of a motor failing to turn - no power/faulty controls/faulty driver (motor, not train) electronics. |
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class411
Operations: Normal
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Post by class411 on Jul 8, 2018 15:44:16 GMT
What exactly is meant by 'stalled' in this instance? An electric motor stalls if there is too much resistance for its available torque and hence it stops rotating. It's extremely unlikely that all the motors on a S-Stock did that (unless someone welded one of the wheels to the track!) Or is 'stalled' used in railway terminology for any instance of a motor failing to turn - no power/faulty controls/faulty driver (motor, not train) electronics. Oh yes, of course, he said the train stalled, not the motors.  So is there really that big a gap - big enough to isolate a seven carriage train - at that location? Or can a train get gapped when some of the shoes are still in contact with a conductor rail. |
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Post by philthetube on Jul 8, 2018 18:12:20 GMT
What exactly is meant by 'stalled' in this instance? An electric motor stalls if there is too much resistance for its available torque and hence it stops rotating. It's extremely unlikely that all the motors on a S-Stock did that (unless someone welded one of the wheels to the track!) Or is 'stalled' used in railway terminology for any instance of a motor failing to turn - no power/faulty controls/faulty driver (motor, not train) electronics. In the case of a train stalled is generally used for any train which will not move, whatever the reason. |
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Post by Colin D on Jul 8, 2018 21:02:12 GMT
It seems to me a lot more of the more modern stocks get stalled over points. I worked primarily on the 62ts (Central Line) and the 38ts (Bakerloo Line) and the only time I remember getting stalled was if there was snow and ice on the power rails. Has the distance between the shoes changed or have the gaps at crossovers become longer, or is it a combination of both?
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Post by MoreToJack on Jul 8, 2018 22:42:08 GMT
What exactly is meant by 'stalled' in this instance? An electric motor stalls if there is too much resistance for its available torque and hence it stops rotating. It's extremely unlikely that all the motors on a S-Stock did that (unless someone welded one of the wheels to the track!) Or is 'stalled' used in railway terminology for any instance of a motor failing to turn - no power/faulty controls/faulty driver (motor, not train) electronics. In the case of a train stalled is generally used for any train which will not move, whatever the reason. Including reasons not train related, e.g. a points or signal failure with a train trapped in section. |
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Post by superteacher on Jul 9, 2018 6:56:06 GMT
Stalled train - use the clutch properly . . .  |
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roythebus
Pleased to say the restoration of BEA coach MLL738 is as complete as it can be, now restoring MLL721
Posts: 1,275
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Post by roythebus on Jul 9, 2018 7:09:19 GMT
Oh yes, of course, he said the train stalled, not the motors. So is there really that big a gap - big enough to isolate a seven carriage train - at that location? Or can a train get gapped when some of the shoes are still in contact with a conductor rail. Yes, I got gapped once at Windsor with a 4 car 455 one day. The front shoe was still on the juice, but on the run-off ramp neat the buffers, but it was so rusty it didn't pass any current. the back shoe (London end) was in the gap on the run-round crossover. solution? couple following train on, depart for Waterloo 30 late. With older stock it wasn't a problem as the shoes were heavier and more robust and would pick up through the light rust on the run-off ramp.. |
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