Minutes January 2005

C: SYSTEM PROTECTION SUBCOMMITTEE

Chair: T. Seegers

Vice Chair: R. Hunt

The System Protection Subcommittee met on January 12th, 2005 at 3:45 PM in San Diego, CA. 40 people attended the meeting, including 21 members.

8 WGs met at this meeting. Working Group C4 changed names to “Industry Experience with System Integrity Protection Schemes” to more accurately reflect the WG assignment. Working Group C7, Guidelines for Protection System Testing disbanded. Working C11 Guide for Protection System Testing started to produce an IEEE Guide, and will submit a PAR after the May meeting. The Peformance of Relaying during Stressed Conditions was renamed to C12 to resolve a conflict with the existing C8 Phasor Models working group. Task Force TF13 Guide for Undervoltage Load Shedding will meet at the May meeting, with Alex Apostolov appointed as chair and Shinichi Imai as vice-chair.

Jeff Pond has been accepted as a member of the C System Protection Subcommittee.

WG Reports:

C1: Cyber Security Issues for Relaying

The C1 working group met in 2 joint sessions with the PSSC Working Group C1. A total of 8 existing members plus 5 new members and 26 guests attended.

Herbert Faulk gave an update on IEC work on cyber security.

There was much discussion on security vulnerabilities and the need for security measures.

Work was done to refine the outline and some writing assignments were made. Assignments are due by March 15.

Draft 1 of the paper will be sent out.

C2: Power Quality Issues in Protective Devices

C2 did not meet in San Diego.

C3: Processes, Issues, Trends and Quality Control of Relay Settings

Working Group C3 met Tuesday, January 11, 2005 in San Diego, CA in a single session with 13 members and 10 guests participating.

All initial writing assignments for the body of the report have been submitted. Discussion and comments during the meeting included:

· Section 3.3: The specific issue of configuration management and change control will be clarified (Arif Cubucku).

· Section 4.2.2: Verifying the system model (Alex Apostolov), WECC requirements for verifying the system model (Jon Sykes)

· Section 4.3:

o The use of tools to simplify the relay setting process (e.g., autocalculation of taps in bank diffs, relay setting rules in short circuit/relay database programs), with suggestions to vendors (Alex Apostolov)

o Any legal requirements for retaining superseded relay settings/calculations (Art Buanno)?

o Any BC Hydro guidelines for retaining superseded relay settings/calculations (Frank Plumptre)?

· Section 4.6:

o The use of computer-aided checking of relay settings (Gary Kobet)

o Review/addition of detail to this section (Ron Beazer)

· Section 9.0: Utility engineers to provide input to this section (Greg Sessler, Stan Klein, Jim O’Brien, and George Gresko to work with Solveig Ward)

· Sections 1.0 Introduction, 2.0 Definitions, and 10.0 Conclusions and Recommendations will be developed (Steve Kunsman and Gary Kobet)

The deadline for these revisions is February 15. A revised draft will be sent to the group by March 1, for review and comments to be discussed at the May meeting.

The next stage of work will include refining the sections to fit the scope and create a coherent document and eliminate redundancy. An editorial team made up of Ken Birt, Steven Kell, and Gary Kobet will review the March document toward this effort.

The WG requests that the revised draft be posted to the PSRC website by March 8. Gary Kobet will send this draft to Rich Hunt, vice-chair of C-SC by March 1.

To review, output of the working group will be a PSRC report, with an associated Transactions paper summarizing the report. Target date for completion is 2006.

C4: Industry Experiences With Power System Protection Schemes (PSPS)

WG C-4 met in double sessions with 15 members and 15 guests

The Working Group volunteers presented writing assignments and discussed:

· The outline of the topics to be raised in the questionnaire

· A liaison structure for the Working Group, intended to facilitate personal contacts as questioner gets on the way to be submitted and thought the response process

· Importance of coordination with the manufacturers for tapping on their knowledge of geographic resources in part of the worlds we may have less contacts with

· A template of a procedure for acceptance and archiving of the information on RAS submitted to (Main) Mid American Area Reliability Council regional councils; he also presented the list of criteria to review installations.

· The need for the questionnaire to cover technology related implementation issues (use of PMUs, protocols, time synchronization techniques, etc.) which were not addressed in the previous IEEE/CIGRE survey

Stan Horowitz proposed the name change of the WG which would better reflect its mission. It was unanimously accepted (new name is "Industry Experience with System Integrity Protection Schemes").

Jaime Delaree, explained that the software tool in possession of the PSRC is dated 1997 and there may be some incompatibles with many of the personal computers that would be used for responding to the survey. The members discussed the possibility for some large organizations (vendors, IEEE itself, universities) which may already possess a web-based software. The SC Chair (Tony Seegers) volunteered to look into the appropriate mechanism for the most efficient way for respondent to fill out the survey.

Second Session:

· Presentation by Mr. Shinichi Imai, on TEPCO's practice of voltage and reactive power management, which was followed by a number of questions. Among other things, Mr. Imai proposed creation of the new WG on under-voltage load shedding.

After each session and the presentation, members discussed the next steps and members with new assignments. Writing assignments received will be distributed electronically to the members before the May 2005 meeting

C5: Deployment and use of Disturbance Recorders

The Working Group met on Wednesday, January 12, 2005 with 8 members and 6 guests present. Richard Young joined the working group.

Vice Chairman Tony Napikoski has requested to be a corresponding member of the working group due to budget restrictions within his organization. Jeff Pond will fill this position.

A copy of Draft 9 of the report was distributed on CD. Outstanding writing assignments were reviewed. Several were received. The report needs to be edited. Tony Guiliante, Harish Mehta, Bruce Pickett, and Richard Young have agreed to provide an editorial review of this draft and send their comments to the chairman by March 1. Our goal is to have two review cycles prior to the next meeting.

Jim Ingleson has posted draft 9, both as a Word document and a zipped file, on the website for all who are interested. The web address is http://www.pes-psrc.org/c/CWG5.html

C6: Relay Engineering in Power Engineering Curricula

The Working Group C-6 met with 10 members and 2 guests present. The meeting was conducted by J. De La Ree, W-G Vice-Chair. The minutes and attendance list of the previous meeting held in Portland, were distributed and accepted. Further discussions on the course outline and content were the subject of the meeting. Initial contribution by several WG members were presented and discussed. Following our initial proposal, contributions will be submitted by April 15 to form the first Draft of the paper. Later effort will include the development of modules for a senior level protection course.

C7: Guide for Protection System Testing

WG C-7 Met on January 12 in single session with total 20 (9 M, 11 G) in attendance.

The WG members reviewed the latest working copy of the WG member’s contributions

· The CIGRE WG 34-04, January 1986, Evaluations of characteristics and performance of power system protection relay and protective systems, report for other types of protection and protective devices will be reviewed as it pertains to system testing with focus on system testing

· Typical test setup arrangements and equipment requirements for end-to-end testing and agreed to combine contributions from different members

· Discussed system testing and the value of standard library – To help manufacturers test their respective devices in the same way, and for users to have a confidence level to the products. The WG members agreed to include a recommendation. Other WG may need to be created for developing the details

· Draft of the proposed PAR in preparation of the recommendation to the Subcommittee guide to officially begin in May 2005

Since the results of the WG points to the need for a guide, it is recommended that the WG be disbanded and a new WG be established with a new assignment to prepare a Guide. The recommended assignment is:

Assignment:

The Working Group will develop a guide for Power System Protection Testing. The Guide will include System Application Test Requirements, Scope and level of tests and Benefits of system testing for Overall Protective Schemes. This assignment encompasses overall system testing procedures (generators, line, transformer, capacitors, SPSs, end-to-end testing, distributed application within substation, etc.), data collection requirements, as well as the test procedure definitions. The WG will describe the methods, extent, and types of system tests for protection at various voltage levels and applications. Includes control functions which are inherent to the protective system, Security vs. Dependability (Out of step). Importance of line testing, testing various phases, indirect trip time, closed loop tests (dynamic / non-linear tests).

C8: Phasor-Based Models for Analyzing Relay Performance

The working group did not meet in San Diego. The working group is awaiting feedback from the IEEE on the editorial review of the paper.

C9: Under Frequency Load Shedding and Restoration

The working group met on Tuesday, January 11th, with 13 members and 10 guests present. The latest draft has been reviewed by the working group editors. The draft document will be sent to the IEEE Editor for pre-ballot review by February 15th, and we will request that a balloting body be formed, in anticipation of balloting later this year. A PAR extension was requested and approved.

The working group discussed writing a paper to present at a technical conference. Five working group members (Alex Apostolov, Rich Young, Vahid Madani, Pratap Mysore, and Mukesh Nagpal) volunteered to write the paper and prepare an associated presentation.

Tony Seegers, Subcommittee Chairman, suggested that work on the paper wait until the balloting process has taken place to determine if any changes will be required to the guide before the paper is prepared.

C11: Guide for Protection System Testing

It was decided at the meeting in San Diego to disband Working Group C7, and start a new Working Group C11, with the goal of creating an IEEE Guide. The new WG C11 will hold a first meeting at the May PSRC meeting. A possible assignment was discussed, as follows.

Assignment:

The Working Group will develop a guide for Power System Protection Testing. The Guide will include System Application Test Requirements, Scope and level of tests and Benefits of system testing for Overall Protective Schemes. This assignment encompasses overall system testing procedures (generators, line, transformer, capacitors, SPSs, end-to-end testing, distributed application within substation, etc.), data collection requirements, as well as the test procedure definitions. The WG will describe the methods, extent, and types of system tests for protection at various voltage levels and applications. Includes control functions which are inherent to the protective system, Security vs. Dependability (Out of step). Importance of line testing, testing various phases, indirect trip time, closed loop tests (dynamic / non-linear tests).

C12: Performance of Relaying During Stressed Conditions

The WG met with impressive attendance of 17 members and 32 guests. The WG reviewed and updated the assignment:

Create a working group report and a summary IEEE paper that will describe performance of protective relays during stressed power system conditions. The work will not cover Special Protection Systems or Remedial Action Schemes.

Importance of Cooperation and sharing of information with the NERC System Protection & Control Task Force has been emphasized. Tom Wiedman and Bill Kennedy will present results of the TF work at the May PSRC meeting. To further strengthen the cooperation, Hassan Shah will be liaison with the TF.

The WG reviewed and updated the scope. The outline of the report was created and a number of members volunteered to contribute by April 15, 2005. The plan for completion is January 2008.

CTF13: Task For on Undervoltage Load Shed

A new task force CTF13 Task Force on Undervoltage Load Shed will meet at the May meeting, with Alex Apostolov as Chair of the task force, and Shinichi Imai as Vice-Chair. The task force will explore the possibility of writing a paper, or creating an IEEE Guide, on undervoltage load shed applications.

Power System Analysis, Computing & Economics Committee Liaison by Malcolm Swanson

No activities to report

NERC by Phil Winston

No activities to report

Liaison Report of the IEEE PES Power System Stability Controls SC to the PSRC by Gary Michel

No activities to report