SynchroGrid performed time dial revisions for non-compliant relays as per NERC-PRC-025 at nearly 46 synchronous generation facilities throughout Texas.

The following were involved in the process:

  • Modelling non-compliant relays in ASPEN
  • Coordinating non-compliant relays based on revised pickup determined by NERC-PRC-025 calculations
  • Creating relay setting reports

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Sharyland Utilities: NERC PRC-019-2 Compliance for Alibates Synchronous Condenser

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Sharyland Utilities: NERC PRC-019-2 Compliance for Tule Canyon Synchronous Condenser

SynchroGrid performed engineering calculations for Sharyland Utilities’ Tule Canyon Substation to verify that relay and limiter settings were in compliance with NERC PRC-019-2.

CTT: PRC-027-1 Wide Area Coordination (WAC)

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NRG: Cottonwood PRC-025

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CTT: Replacement of Reactor Relays at Gray Substation

SynchroGrid developed relay settings to replace reactor relays (GE-T60 and SEL-487E-0 were replaced with SEL-387E and SEL-487E-3) and updated drawings, control schematics, and GOOSE architect files to coordinate communications.

Pattern Energy: NERC PRC IESO Scope Addition

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