NOTICE DATE:  May 25, 2012

NOTICE TYPE:  M-A041012-02 Operations

SHORT DESCRIPTION:  Disabling of Whirlwind SPS

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  June 1, 2012

LONG DESCRIPTION:  ERCOT received a request to disable the Whirlwind Special Protection System (SPS) by American Electric Power Co. Inc. (AEP). The Whirlwind SPS protects against thermal overloads of either the Matador to Paducah Clare Street 69 kV line or the Matador to Spur 69kV line. ERCOT has reviewed the proposal and is approving it because the necessary transmission upgrade projects in that area have been completed. 

ADDITIONAL INFORMATION:  Information regarding SPSs can be found on the ERCOT Market Information System (MIS) under “Special Protection Systems and Remedial Action Plans” at https://mis.ercot.com/pps/tibco/mis/Pages/Grid+Information/Long+Term+Planning. A digital certificate is required to access the MIS.

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 email at [log in to unmask].

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