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Post by dave1 on Feb 20, 2016 14:11:44 GMT
Can someone tell me what an Anti-Opposition track is for I have seen some diagrams recently and there were some track circuits marked as such.
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Post by Nortube on Feb 23, 2016 10:24:37 GMT
I was told the reason for these, but had forgotten! Looking through some of the posts on here, RT has an excellent explanation in the Kennington NB/Bank-London Bridge SB thread See his post at 26 Apr 2015 at 18:31 [ Click here ]Under the old Northern line signalling system, anti-opposition tracks between Kennington and Leicester Sq were at: Northbound PP - just departing Kennington NB platform 2 62B - Waterloo platform 68D - north of Embankment platform 76C - just departing Leicester Sq platform Southbound 83B - Leicester Sq platform BG - approach to Embankment platform 67A - Waterloo platform 51B - Kennington SB platform 2 |
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Post by dave1 on Feb 23, 2016 11:23:40 GMT
I was told the reason for these, but had forgotten! Looking through some of the posts on here, RT has an excellent explanation in the Kennington NB/Bank-London Bridge SB thread See his post at 26 Apr 2015 at 18:31 [ Click here ]Under the old Northern line signalling system, anti-opposition tracks between Kennington and Leicester Sq were at: Northbound PP - just departing Kennington NB platform 2 62B - Waterloo platform 68D - north of Embankment platform 76C - just departing Leicester Sq platform Southbound 83B - Leicester Sq platform BG - approach to Embankment platform 67A - Waterloo platform 51B - Kennington SB platform 2 Nortube, Thanks for that like you say an excellent explaination. |
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Post by fivethirtytwo on Jun 17, 2017 19:10:00 GMT
Can someone tell me what an Anti-Opposition track is for I have seen some diagrams recently and there were some track circuits marked as such. An anti-opposition track is a standard AC capacitor fed track circuit. Both the section and continuous running rails have a blockjoint inserted in each rail at each end of the track circuit. They're found: 1) in station areas, which allows any adjustment of track circuit opposition to be carried out between any two stations 2) where the +ve traction rail has been transposed (to keep the continuous rail next to it) 3) at substation gaps in the signal main Hope that makes sense. |
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Post by dave1 on Jun 18, 2017 17:45:07 GMT
532 thanks
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ben
Box Boy
Posts: 1 
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Post by ben on Nov 22, 2017 20:48:46 GMT
Can someone tell me what an Anti-Opposition track is for I have seen some diagrams recently and there were some track circuits marked as such. An anti-opposition track is a standard AC capacitor fed track circuit. Both the section and continuous running rails have a blockjoint inserted in each rail at each end of the track circuit. They're found: 1) in station areas, which allows any adjustment of track circuit opposition to be carried out between any two stations 2) where the +ve traction rail has been transposed (to keep the continuous rail next to it) 3) at substation gaps in the signal main Hope that makes sense. Could you explain further why Anti-Op track is used around substations? |
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