Trip Circuit Supervision Relay : MRA-PRO-V2

FEATURES
  • Micro-processor-based design
  • Continuous Trip circuit supervision of both pre-closing & post-closing conditions in circuit breakers.
  • Detection and Alarm of trip circuit supply failure and circuit breaker tripping mechanism failure, such as loss of voltage, trip circuit connection, contact degradation in wires, contacts and coils.
  • 4 Output contacts based on ordering information
  • Operation delay to avoid spurious signals, for instance, on CB operations
  • Functional operation indication by 4 LEDs, namely CB OK, CB fail, Manual and Edit.
  • Test function for self-test facilities during routine maintenance
  • Auto / Manual operation mode.

Pro series offers a compact protection & supervision solution for the Feeder, Generator, Motor & Transformer segment.

MRA-Pro-V2 supervision relay is an advanced numeric relay that provides circuit breaker coil supervision.

  • MRA-PRO-V2 relay continuously monitors the entire trip circuit for both pre-closing and post-closing conditions, safeguarding against faults, short circuits, and other hazards.
  • By detecting trip circuit failures early, it allows for quicker identification and resolution of issues, minimising system downtime.
  • It helps mitigate damage to critical components by preventing faults that can cause overloads, thereby extending the lifespan of electrical equipment.
  • Early fault detection and reduced equipment damage contribute to significant cost savings
  • Four LEDs provide clear, functional status updates for the circuit breaker, including “CB OK,” “CB Fail,” “Manual,” and “Edit”.
  • It offers both “Auto” and “Manual” operation modes and a self-test function to facilitate routine maintenance and troubleshooting.
  • The relay works with a wide range of auxiliary supply voltages, including 24V, 110V, and 220V DC models.