Overrun Protection

Railway Route Release Circuits      

Railway Route Release Circuits             Railway Route Release Circuits :- Approach locking Release of Approach locking as per GK/RT0063, para 4.2. Approach locking shall be released, after replacement of the signal to danger, either  by. the train passing the signal is detected such that the route or track locking is effective for the route ahead of […]

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Railway Audio frequency jointless track circuit

Railway Audio frequency jointless track circuit

Railway Audio frequency jointless track circuit Railway Audio frequency jointless track circuit – Why AFTC? Jointless Immune to traction voltages Long length Both rails available for traction currents Broken Rail Detection in both rails Superior Train Shunt Detection End fed track circuit   Operating frequencies   Principle of operation   “Electronic” separation joint   TI21 […]

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Voltage Impulse Track Circuit

Railway High Voltage Impulse Track Circuit

Railway High Voltage Impulse Track Circuit Railway High Voltage Impulse Track Circuit JEUMONT TRACK CIRCUIT Ensures correct shunting even on tracks where rust, scale, coal dust or sand contaminating the rail surface High voltage pulses of short duration separated by long intervals    1. To break down semi-insulating surfaces of the rail on occupation    2. […]

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