neilw
now that's what I call a garden railway
Posts: 284
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Post by neilw on Jan 26, 2018 20:53:18 GMT
Hello everyone
Following up on this subject from last year, are P-CRIDs still in use, as I hear that they are no longer being added to the system?
Any clues as to who might be knowledgeable about them, we are still investigating power indication for the Tramway Museum? Many thanks
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North End
Beneath Newington Causeway
Posts: 1,769
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Post by North End on Jan 26, 2018 21:34:31 GMT
Hello everyone Following up on this subject from last year, are P-CRIDs still in use, as I hear that they are no longer being added to the system? Any clues as to who might be knowledgeable about them, we are still investigating power indication for the Tramway Museum? Many thanks Yes they are still in use. They were a Tube Lines creation, so only found on JNP. Generally pretty unreliable though, so pretty useless in practice. Would be wonderful if they were reliable. |
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Deleted
Deleted Member
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Post by Deleted on Jan 27, 2018 5:01:52 GMT
Bring back the 3 neons
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Deleted
Deleted Member
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Post by Deleted on Jan 28, 2018 2:25:47 GMT
Hello everyone Following up on this subject from last year, are P-CRIDs still in use, as I hear that they are no longer being added to the system? Any clues as to who might be knowledgeable about them, we are still investigating power indication for the Tramway Museum? Many thanks Not everything is fool proof but the traction sections on LU have a COLR - Current On Line Relay. It is a relay that is energised by the traction current which over a back contact when the relay is de energised this is what lights up the RGI’s - Rail Gap Indicator showing that traction is turned off |
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Post by MoreToJack on Jan 28, 2018 2:34:52 GMT
Hello everyone Following up on this subject from last year, are P-CRIDs still in use, as I hear that they are no longer being added to the system? Any clues as to who might be knowledgeable about them, we are still investigating power indication for the Tramway Museum? Many thanks Not everything is fool proof but the traction sections on LU have a COLR - Current On Line Relay. It is a relay that is energised by the traction current which over a back contact when the relay is de energised this is what lights up the RGI’s - Rail Gap Indicator showing that traction is turned off I believe the same relay is also what provides indications (both audible and visual) in places like signal cabins and control rooms? Ours were being changed over last weekend to talk to The Future™, which is thrilling. 🙃 |
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Deleted
Deleted Member
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Post by Deleted on Jan 28, 2018 5:57:57 GMT
Signal cabins have repeating relays known as COLPR - Current On Line Repeating Relays but they are fed from the original COLR and they are purely for the indication on the diagram.
One thing to remember where you have points on a different traction section the RGI for the diverging section is switched over the points itself or fed from its associated relay
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