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Post by malcolmffc on Jun 29, 2011 18:27:05 GMT
What is being done during the full line closure this weekend? With the last 67 finally gone, will they be able to activate the regenerative braking and the new signalling system?
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Post by Deleted on Jul 1, 2011 12:18:57 GMT
I believe this weekend's closure, is to strip out the original signalling and ATO systems, which are surplus to requirements now that the 1967TS have been removed from service.
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Post by Deleted on Jul 1, 2011 12:22:37 GMT
Some preparatory work for the next closure, which will take place in August, covering Tottenham to Finsbury Park. The trains will still only be running on new signalling equipment north of Tottenham after this weekend.
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Post by Deleted on Jul 1, 2011 15:13:11 GMT
When is the new system likely to be fully effective?
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Post by Deleted on Jul 1, 2011 21:47:44 GMT
Think there is roughly 1 closure a month from August onwards, so towards the end of the first quarter next year. There are 7 more closures where a switch from overlay to asset replacement happens (gradually going down the line), but the last one of them is to make the depot roads bi-directional.
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Post by malcolmffc on Jul 1, 2011 23:14:43 GMT
What about the regenerative braking?
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Post by Deleted on Jul 2, 2011 7:40:19 GMT
Think there is roughly 1 closure a month from August onwards, so towards the end of the first quarter next year. There are 7 more closures where a switch from overlay to asset replacement happens (gradually going down the line), but the last one of them is to make the depot roads bi-directional. Thanks. How easy/difficult is it to change the regenerative braking systems? Is it just software-related? |
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Post by Deleted on Jul 2, 2011 9:12:33 GMT
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Post by Deleted on Jul 2, 2011 9:30:57 GMT
After maximum regenerative braking is enabled, will the difference be noticeable? No more screeching of the "normal" friction top-up just before the train becomes stationary? |
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Post by Deleted on Jul 2, 2011 9:52:42 GMT
Doubt you will notice any difference at all. Dynamic brake blends out at about 10 km/h - below that is friction only anyway.
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Post by superteacher on Jul 2, 2011 10:39:30 GMT
Some preparatory work for the next closure, which will take place in August, covering Tottenham to Finsbury Park. The trains will still only be running on new signalling equipment north of Tottenham after this weekend. So does this mean that 1967 could still run normally after this weekend? I'm not saying that they will, but could they? |
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Post by Deleted on Jul 2, 2011 11:27:43 GMT
Some preparatory work for the next closure, which will take place in August, covering Tottenham to Finsbury Park. The trains will still only be running on new signalling equipment north of Tottenham after this weekend. So does this mean that 1967 could still run normally after this weekend? I'm not saying that they will, but could they? Seven sisters and south, they could as far as I know. |
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Post by superteacher on Jul 2, 2011 12:23:08 GMT
So does this mean that 1967 could still run normally after this weekend? I'm not saying that they will, but could they? Seven sisters and south, they could as far as I know. Although of course, the 2009 stock with full regen braking might cause an issue. What effect would it have on a 67? |
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Post by Deleted on Jul 2, 2011 12:24:26 GMT
Seven sisters and south, they could as far as I know. Although of course, the 2009 stock with full regen braking might cause an issue. What effect would it have on a 67? AIUI there is concern as to whether the insulation on a 1967 could handle the extra voltage. |
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Post by Deleted on Jul 2, 2011 15:02:41 GMT
Charlie is correct, there are concerns as to whether the insulation could handle the extra voltage.
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Post by superteacher on Jul 2, 2011 17:18:19 GMT
Charlie is correct, there are concerns as to whether the insulation could handle the extra voltage. And not the kind of thing you want to try, just in case! |
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