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CTT

PRC-027-1 Wide Area Coordination (WAC)

Year

2019

Location

Texas

Service Provided

NERC Compliance

Transmission line tower with star grid

How we helped

SynchroGrid performed a WAC for CTT’s 345kV system as part of NERC PRC-027-1 requirement 2.

This project included the verification of proper relay operation and coordination of distance and overcurrent elements. Coordination criteria included Zone 1, Zone 2, Zone 3, and Zone 4 reaches, out of sequence, out of order operations, and CTI mis-coordination. As part of this project, SynchroGrid also evaluated Switch-Onto-Fault (SOTF), Loss of Potential (LOP) and load encroachment settings.

Reach verifications and coordination checks were made using CAPE’s PowerScript language.

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