Center Fed AFTC

Railway Audio Frequency Track Circuits

ALLOCATION OF FREQUENCIES| RAILWAY AUDIO FREQUENCY TRACK CIRCUITS |PRINCIPLES OF THE OPERATION|QUADRUPLE LINES|TRANSMITTER -Tx|RECEIVER -Rx|TUNING UNITS|CENTER FED AFTC| TRACK CIRCUIT LENGTHS|TRACK CIRCUIT LENGTHS|PHYSICAL REQUIREMENTS|WIRING DIAGRAM| CONFIGURATIONS OF AFTC Railway Audio Frequency Track Circuits It’s a type of AC track circuit in which audio frequency signals are used instead of pure AC or DC signals. Its […]

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Railway Signalling layout of signal positioning

Railway Signalling layout of signal positioning

Railway signals explained|Railway Signalling layout of signal positioning|railway signals and signs| types of railway signals|british railway signals|railway signals pdf |types of railway signals ppt|model railway signals|model railway signalling circuits|Signal Designation|Automatic|Controlled|Signal spacing|Stop Signal|Running line|Sidings|Block signalling|Facing junctions|Level Crossings| Conflicting movements|Lockout Systems|Signals at point of reversal|Ground Frames|Constraints on positioning of stop signals|Bi-directional signalling|Identity of signals Signal numbering|Signal numbering|Signal […]

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Railway Signal positioning & Visibility

better better|Readable|Railway Signal positioning & Visibility|principle requirement of a signal positioning|Achievable Reading Distance|Minimum Reading Distance (MRD)|Signal Sighting Process|Role of signal sighting committee|Role of signal sighting committee|Signal Sighting Form| Signals on parallel lines|Visibility of signals on other lines|Read Through|Form of signals| Lineside signs in the vicinity of signals|Positioning of subsidiary signals|Positioning of co-acting signals| Banner repeater […]

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Releasing Route Locking

Route Locking Circuit Railway Signalling 

Locking of Route|Route Locking Circuit Railway Signalling|Type of Approach Locking|Approach locking are of two types|Release of approach locking can be initiated in two ways|ROUTE STICK RELAYS|Route Locking|Release of Route and Overlap Locking|USR Circuit|Overlap USR|Effect of dropping of USR relays|Releasing Route Locking Track Occupied Timer|Track clear Timer Circuit Route Locking Circuit Railway Signalling  Locking of Route […]

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Average Gradient

Railway Train Braking Concepts

Railway Train Braking Concepts|Introduction to Train Braking|Braking Rates|Braking Technique| Theoretical and Practical Braking|Braking Distance Calculations|Braking Distance Curves|Composite B.D. Curves|Braking Tables|Selection of Applicable Braking Curves|Braking Distance Calculations| Effect of Gradient on Braking Railway Train Braking Concepts Introduction to Train Braking – 1 Initially braking was available only from locomotive and other vehicles on freight trains were […]

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