Microprocessor device for relay protection and automation

Microprocessor device for relay protection and automation

Microprocessor device for relay protection and automation of 6-35 kV connections of the RITM type

The device is intended for use in secondary switching circuits in substations with alternating, rectified alternating current or constant operational current with the necessary functions for protection, automation and signaling of 6-35 V connections.

 

Main functions

Protection functions

  • Five stages of non-directional overcurrent protection;
  • Five stages of non-directional earth-fault protection;
  • Protection against unbalanced modes and phase failure (ZOF);
  • Acceleration of the overcurrent protection at start-up.

Automation functions

  • Automatic reclosing (automatic reclosing);
  • Breaker failure protection.

Service functions

  • Self-diagnosis of serviceability;
  • Memorizing the status of the indication in case of power failure;
  • Password protection;
  • USB communication port on the front panel;
  • Audio-visualization.