Back to Past Projects


PRC-027-1 Wide Area Coordination (WAC)





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.

Interested in expanding your system protection capabilities? Let’s talk about your challenges and ways we can help to provide unparalleled system protection services. Give us a call.

Case Studies