idea™ iTP - Line Distance Protection System

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  

Relays by Type

Reclosing Relays
Overcurrent Protection
Freq. & Voltage Protection
Bus Differential Protection
Transformer Protection
Generator Protection
Motor Protection
Synch-Check Relays
DIN Relays
EdisonCom Lite
Capacitor
Feeder
Line
Transfer