NOTICE DATE: January 8,
2009
NOTICE TYPE:
M-A112008-03 Operations
SHORT DESCRIPTION: Revised
Sandow Switch SPS Proposal
INTENDED AUDIENCE:
ERCOT Market Participants
DAY AFFECTED: January
9, 2009
LONG DESCRIPTION: Oncor
Electric Delivery has proposed a revision to the previously approved Special
Protection System (SPS) at the Sandow Switch substation. This SPS
involves initiating a safe shut down of Sandow Unit 4 upon detection of the
loss of the Sandow Switch 345/138 kV Autotransformer. It also involves
opening the Sandow Switch – Minerva 138 kV Line upon detection of an
overload condition on this line.
The ERCOT ISO has provisionally approved this SPS
proposal, as the expected in-service date is January 9, 2009. 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].
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.
sg