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 LockingTrack Occupied Timer, Track clear Timer Circuit Route Locking Circuit Railway Signalling  Locking of Route […]

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