Low voltage Crowbar

Low Voltage Crowbar

The medium voltage module Low voltage crowbar ha due componenti del circuito principale:

  • An ignition panel that measures the high voltage input and generates a thyristor ignition impulse if the voltage exceeds a certain threshold
  • A thyristor assembly that when activated short-circuits the anode and the cathode in order to discharge the circuit.

Advantages: del circuito Crowbar:

  • The Crowbar has a faster response than the DC field switch
  • The discharge of the field through Crowbar is linear while in the DC Field breaker it is not linear
  • System life is longer if the DC switch is not used
  • Maintenance is not required in Crowbar while in DC Field breaker, due to mechanical operations, regular maintenance is required.
Technical data
Parameter Description
Diode type Press pack/stud or power module
Cooling system Natural air
Mounting Wall mounting
Altitude 1000 m. a.s.l.
Climate Temperate
Min./Max. operating temperature 0 ÷ 40 °C
Storage temperature -40 ÷ 55 °C
Relative humidity 10 ÷ 90 % (0 ÷ 40 °C)

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