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NOTICE DATE: August 18, 2009
NOTICE TYPE: M-A081709-02 Operations
SHORT DESCRIPTION: Whitney SPS in service
INTENDED AUDIENCE: ERCOT Market Participants
DAY AFFECTED: June 30, 2009
LONG DESCRIPTION: ERCOT is issuing a correction to notice M-A081709-01. The second paragraph of the notice referenced the Sandow Switch SPS. This statement was in error. The statement should have read "Further details of the Whitney SPS can be found in the "Special Protection Systems Information" section of the Planning and Operations Information secure website at the link below."
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]<mailto:[log in to unmask]>.
If you are receiving e-mail from an ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com<http://lists.ercot.com/>.

NOTICE DATE: August 17, 2009
NOTICE TYPE: M-A081709-01 Operations
SHORT DESCRIPTION: Whitney SPS in service
INTENDED AUDIENCE: ERCOT Market Participants
DAY AFFECTED: June 30, 2009
LONG DESCRIPTION: ERCOT approved a proposal from Brazos Electric for a new Special Protection System (SPS) for the Whitney transformer on April 13, 2009, per Market Notice M-B030509-02. This SPS is intended to protect against overloading on the Whitney 345/138 kV transformer that may occur with the loss of the Bosque Switch - Elm Mott 345 kV Line and high dispatch of 345 kV generation at the Bosque Switching Station.

As of June 30, 2009, this SPS is in-service. Further details of the Sandow Switch SPS can be found in the "Special Protection Systems Information" section of the Planning and Operations Information secure website at the link below.
http://planning.ercot.com/login/login
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]<mailto:[log in to unmask]>.
If you are receiving e-mail from an ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com<http://lists.ercot.com/>.