TVL Railway Voltage Limiting Devices

In case of overvoltage, the TVL limits the dangerous voltage to very low safe values. In addition, in case of faults (e.g. accidental short-circuits with the contact lines), the TVL generates a durable conductive path between the overloaded area and the substation. This results in increased current loads being sensed at the substation, allowing an efficient tripping of the safety circuit breaker.

  • Fast response time
  • Efficient elimination of dangerous overvoltage to very low safe voltage values
  • Low residual voltage ensured by Metal Oxide Varistor (MOV) module
  • Temperature independent triggering voltage
  • Guaranteed recoverability for long term currents
  • Combined protection for personnel, passengers and equipment
  • Bidirectional operation for protection against overvoltages in both polarities

 

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