NOTICE DATE: March 14, 2008
NOTICE TYPE: M-A031408-01 Operations
SHORT DESCRIPTION: Each QSE with resources or Transmission Service Provider to supply documentation of any protective relay or equipment failures in accordance with NERC standard PRC-001-0.
INTENDED AUDIENCE: QSEs with resources and Transmission Service Providers
DAY AFFECTED: March 13, 2008
LONG DESCRIPTION: ERCOT ISO requires each QSE with resources or Transmission Service Provider (Transmission Operator) to supply documentation, including corrective actions, to ERCOT ISO Operations Shift Supervisor Desk of any protective relay or equipment failures which reduce system reliability in accordance with NERC standard PRC-001-0.
Also, ERCOT requires information on the expected backup relay action which is expected to protect the involved equipment and the expected duration of the impaired protective relaying action.
By this Market Notice, ERCOT is requesting that all relay misoperations per Operating Guide 7.2.3 (2) be reported to ERCOT ISO Operations Shift Supervisor Desk.
This notice is a standing request and is to remain in effect until an Operating Guide Revision Request (OGRR) to align ERCOT processes with NERC Standards can be implemented.
ACTION REQUIRED: ERCOT is requesting that all relay misoperations per Operating Guide 7.2.3 (2) be reported to ERCOT ISO Operations Shift Supervisor Desk.
ADDITIONAL INFORMATION: References:
NERC Standard PRC-001-1 R2.2 states “If a protective relay or equipment failure reduces system reliability, the Transmission Operator shall notify its Reliability Coordinator and affected Transmission Operators and Balancing Authorities. The Transmission Operator shall take corrective action as soon as possible.”
ERCOT Operating Guide 7.2.3 (2) states: “All protective relay system misoperations in systems 100 kV and above shall be documented, including corrective actions and the documentation supplied by the affected Facility Owner to ERCOT or NERC upon their request within five business days. All protective relay system misoperations shall be documented using Section 6.1.2, Relay Misoperation Report.”
CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via e-mail at [log in to unmask].
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