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idea™ iTP - Line Distance Protection System

The Edison idea iTP is a substation IED (Intelligent Electronic Device) designed for Transmission Protection, Monitoring, and Control.

PROTECTION FEATURES

The Edison idea iTP provides complete transmission protection. Functions available include:

  • Four zones each of phase and ground distance protection; 3 forward and 1 reverse
  • Zone 1 extension logic or 4th forward zone
  • Directional phase, ground and negative-sequence overcurrent elements; instantaneous, definite time, and inverse time overcurrent
  • Over/under voltage elements
  • Multiple-Shot programmable reclosing
  • Sync-check
  • Out-of-step blocking logic
  • Weak feed logic
  • Breaker fail-to-trip and fail-to close detection
  • Switch-onto-fault logic
  • Communication aided tripping logic including POTT, PUTT, DCUB, DUTT, DTT, DCB, Forward Overreaching and Underreaching logic
  • Loss of Load Accelerated tripping
  • Load encroachment logic
  • Fault location
  • Fuse-Fail detection
  • Eight setting groups
  • Catalog Section 165-100  



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