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Types of Signals Types of Signals :- Signal is a medium to convey a particular pre-determined meaning in non-verbal form. Multiple Aspect Color Light Signal (MACLS): Multiple means more than 2 indications .They may have 3 or 4 different aspects or indications to be given to the driver. These signals have longer range of […]
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Railway Switches Types There are two types of switches (i) Stub Switch (ii) Split Switch Stub Switch 1. Earliest type of switch. No separate tongue rails are provided 2. Some portion of the main tracks is moved from side to side 3. It is obsolete now and no more in use on Indian Railways […]
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Platform Emergency Stop Plunger(PESP) Railway Platform Emergency Stop Plunger(PESP) Railway :- * Five Emergency Stop Plungers shall be provided at each platform for the use of passengers and staffs to stop the train in case of emergency. * One Emergency Stop Plunger for each platform shall be provided in the Station control Room (SCR) panel. * […]
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Railway Salient features of Relay based Interlocking Relay Interlocking is a system of implementing principles of interlocking for safe train operations at a Station with the help of electrical circuits wired through electro-magnetic relay contacts and coils. Difference between Route Setting Type and Non-Route Setting Type In the Route setting type popularly known as RRI […]
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Railway Signals Location Home Signal Distant Signal Routing Signal Starter Signal Advanced Starter Location of Railway Signals Home Signal: On single line, shall be placed at not less than 300 Mts. in rear of the first facing point. On double line may be located at a distance of not less than 180 Mts. in rear […]
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RAILWAY DESIGNING OF RELAY LOGIC PRESENTATION CIRCUITS-1 While designing the logic circuits conditions imposed in the control table are to be followed Following guidelines are to be to be followed for various types of relay logic circuits. CIRCUITS-2 * What is a meshed circuit and what are the risk factors to be considered? * Special […]
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