Logo
Select Quick Pages:
Home
About
Contact Us
Disclaimer
Privacy policies
Terms and conditions

Distance relays are generally

  • Distance relays are generally Mho relays, Reactance relays and Impedance relays.
  • Mho relays measure the ratio of voltage to current at the relay location and use this information to determine the impedance seen by the relay.
  • Reactance relays measure the reactive component of impedance at the relay location, which can be used to distinguish between faults and load conditions.
  • By measuring impedance, distance relays can determine how much of the line is affected by the fault and can initiate a protective action, such as tripping the circuit breaker to isolate the affected section of the line.