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Project
2010-05.1 Protection Systems:
Phase 1 (Misoperations)
Related Files
Status:
The drafting team is currently addressing Quality Review comments and
suggestions regarding the second draft of the standard for Protection
System Misoperation Identification and Correction. The drafting team
anticipates posting the standard and associated documents in May 2012
for a 45-day formal comment period concurrent with a 10-day initial
ballot.
Purpose/Industry Need:
A key element for Bulk Electric System (BES) reliability is the correct
performance of Protection Systems. Monitoring BES Protection
System events, as well as identifying and correcting the root causes of
Misoperations, will improve Protection System performance.
In FERC Order No. 693 (dated March 16, 2007), the Commission identified
PRC-003-1 (Regional Procedure for Analysis of Misoperations of
Transmission and Generation Protection Systems ) as a
“fill-in-the-blank” standard and did not approve or remand the standard
since the regional procedures had not been submitted.
Since PRC-003-1 is not enforceable, there is not a mandatory
requirement for Regional procedures to support the requirements of
PRC-004-2 (Analysis and Mitigation of Transmission and Generation
Protection System Misoperations).
This could lead to a potential reliability gap.
Additionally, regional procedures are not standardized among the
regions, and preclude the development of consistent metrics for
measuring Protection System performance.
Phase 1 of this project will develop an improved standard to support the
analysis and mitigation of Misoperations.
Later phases of this project will address Special Protection
Systems.
Additional Information:
This Project is also being used to meet one of the objectives identified
within the ERO Strategic Goals for 2011-2015.
In support of ensuring NERC has clear, high technical
quality results-based reliability standards that provide for an adequate
level of bulk power system reliability and that are delivered in a
timely and efficient manner, the following objective was proposed:
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Modify the standards development process to allow rapid
development of an initial draft standard by a small
professional team with requisite expertise and skills,
including legal and compliance, followed by subsequent
stakeholder consensus review, comment and balloting; the
process will provide early consultation, including with
regulatory authority staff, to determine a clear set of
objectives for the standard. The process will allow
highest priority standards to be delivered to the board
within one year.
NERC’s
Standard Processes Manual allows significant flexibility in the initial
informal stages of SAR and standard development, and at this time, no
changes to the standards development process are anticipated to be
needed to meet this objective.
When the informal “Rapid-Development Team” completes its work and
submits it to the Standards Committee, the work will be posted for
industry consideration and transitioned to a formal Drafting Team for
further development under the regular rules defined in the Standards
Process Manual.
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