Railway Signalling Speed Restrictions

Railway Signalling Speed Restrictions

Railway Signalling Speed Restrictions – Presentation DEFINITIONS PERMISSIBLE SPEED – The authorized maximum speed over a section of line. TEMPORARY SPEED RESTRICTION – A speed , less than the permissible speed, applied for a pre-planned period not normally exceeding 6 months. EMERGENCY SPEED RESTRICTION – A speed restriction not shown in the Weekly operating Notice (WON),or […]

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Power Supply Railway Signalling- Lightning Protection-Earthing

Power Supply Railway Signalling | Lightning Protection | Earthing

Power Supply Railway Signalling What is a Power Supply?  * Electrical supply used for Signaling purposes. Different equipments need different voltages. * Supply is extended by Electrical department based on the requirement of signalling. * Signalling has to provide the details of locations and maximum load at each location. * Based on these requirements  the […]

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Aspect Sequence Chart Railway Signalling

Aspect Sequence Chart Railway Signalling Definitions: Aspect – any valid visual indication of a signal as displayed to the driver Aspect sequence – The order in which the aspects of successive signals are displayed to the driver Signal spacing – The distance between the signal or lineside sign displaying cautionary aspect and the signal or lineside sign at […]

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Level Crossing Interlocking

Railway Signalling Level Crossing Interlocking Circuits

Railway Signalling Level Crossing Interlocking Circuits • Connected Relays: • LXLR: This relay picks up by proving all concerned ASR/OVSRs of signals in whose route/overlap the L.C. gate falls are free.(i.e., picked up) and UCRs are de-energized (i.e., route is not set). • LXRR: It proves that the gate is free to be opened for […]

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Railway Circuits Diagram Signal button relays। Route button relays। Point button relays। Common button relays

Railway Circuits Diagram Signal button relays। Route button relays। Point button relays। Common button relays 

Railway Circuits Diagram Signal button relays। Route button relays। Point button relays। Common button relays  1 button relay circuits We have studied in Chapter No.7, the various features provided in the “Control cum Indication Panel”. Every main and shunt signal has a button provided at the foot of the signal symbol on the panel. The route […]

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Railway Signalling Selection Table Control Table

Railway Signalling Selection Table / Control Table

Railway Signalling Selection Table / Control Table In the relay interlocking systems, the safety of train movements in the yard has to be ensured in the various electrical signaling circuits that are prepared for the system. The circuits therefore have to be prepared care fully and meticulously and checked thoroughly from the point of view […]

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