Minutes May 2005

 

C: SYSTEM PROTECTION SUBCOMMITTEE

 

 

Chair: T. Seegers

Vice Chair: R. Hunt

 

The System Protection Subcommittee met on May 26th, 2005 at 1:15 PM in Columbus, OH. 49 people attended the meeting, including 15 members.

11 WGs met at this meeting. Task Force TF13 Guide for Undervoltage Load Shedding will convert to WG C13. C13 will produce a report on Undervoltage Load Shedding. Art Buanno is appointed as chair and Shinichi Imai as vice-chair.

Art Buanno has joined the C Subcommittee as a member.

The C Subcommittee is urging all Working Groups to restate the Working Group assignment at the start of each meeting, and to place the assignment on the Working Group meeting agenda. In addition, the C Subcommittee plans to place the Working Group assignment, Working Group Chair and Vice-Chair information, and the status of the Working Group, on the PSRC website.

WG Reports:

C1:    Cyber Security Issues for Relaying

The C1 working group met on May 24, 2005 with 6 members, 2 new members and 18 guests in attendance.

 

There was a discussion on NERC guidelines for security issues. The guidelines are being updated. The new guidelines will not be available until they are adopted. Stan Klein will keep us updated as the guidelines are adopted.

 

There was discussion of other documents, standards, etc. on Cyber Security. They will be referenced in the paper or the Annex.

 

The outline of Draft 1.2 of the paper was discussed and it was decided some sections needed to be combined and some mention of pilot relay channels should be added.  Draft 1.3 with the changes made thus far will be sent to the members and attendees soon after the meeting.  Writing assignments were made for sections of the paper and they are due to the chair by August 15, 2005.

C2:    Power Quality Issues in Protective Devices

C2 met Tuesday May 24, 2005 in Columbus, OH with 4 members and 6 guests present. The total number of members is 26.

 

Final draft of the report was sent out for working group ballot.  No comments were received and only positive votes.  The working group at this meeting has approved the final draft of the document and recommends submitting to the C sub-committee.  The final draft will be submitted to the sub-committee for approval and then will be published on the IEEE website.

 

Working Group members section needs to be updated and then paper will be complete.

 

Working group discussed means of presenting the paper at various venues.  The working group will consider a summary paper and power point for presentation at regional conferences.  Tony Seegers will discuss with PSRC secretary for January general meeting presentation.

 

 

Action Items:

1.         T.W. to inform the C subcommittee the paper is ready to advise and consent for final approval (comments/approval are due by 1-July-2005).

2.         Tony to discuss with Miriam on the presentation of the summary at the January.

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

Working Group C3 met Wednesday, May 25, 2005 in Columbus, OH in a single session with 12 members and 10 guests participating.

 

The group reviewed the open assignments from the last meeting.  The below actions remain open:

·               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)

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

 

An editorial team made up of Ken Birt, Steven Kell, Don Lukach, Hyder DoCarmo and Gary Kobet will review the draft.

 

Timeline and milestones for completion:

         Open contributions complete by June 15

         Editorial work complete by June 30

         Intro & Summary/conclusion by July 15

Final draft report sent to WG and sub-committee members by August 1

Review & comments from WG by August 30

September Calgary WG meeting focus on comment resolution

         WG member Ballot for approval by October 2005

         Summary/transaction paper and presentation target 2006

        

The WG requests that the revised draft 3.1 be posted to the PSRC website.  Gary Kobet will send this draft to Rich Hunt, vice-chair of C-SC by June 1st.

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

WG C-4 met in single session with 10 members and 4 guests. The WG attendees presented writing assignments and discussed the following:

 

Updated Assignment

 

Conduct a survey of power systems professionals worldwide to accumulate experiences with the System Integrity Protection Schemes (SIPS). This survey will complement and expand on the previously published IEEE/CIGRE paper “Industry Experience with Special Protection Schemes” by P.M. Anderson and B.K. LeReverend (IEEE Transaction on Power Systems, Vol. II, No. 3, August 1996).  The survey will be conducted via an internet-based questionnaire with the assistance of, and be available to, other interested parties; (e.g. IEEE, CIGRE, PES, EPRI, etc.).  The survey will be concluded by September 2007 and will be presented in a report to the “C” Subcommittee and a Summary Transactions paper.

 

Assignments discussed:

·               A brief overview of the alternatives for the implementation of the survey – The preferred method, as expressed by the WG members at previous meetings is a web based survey.  However, the WG members agreed that the actual mechanics may be decided along side with the questioner.

·               Communication methods to inform people of the survey was discussed

o        EPRI, NERC Monthly Newsletter

o        WG members / Manufacturers have volunteered to help broadcast

o        Have discussed with CIGRE TF 38.02.24 (Defense Plans Against Extreme Contingencies)

·               Survey questions

o        A draft spreadsheet summary of the RAS

o        Members volunteered for assignments recommended by the WG

                        Reliability indices

                        Performance indices

                        Application indices (UF or UV load shedding and success factors)

 

Writing assignments received will be distributed electronically to the members before the May 2005 meeting

C5:    Deployment and use of Disturbance Recorders

Meeting was held May 25 with 7 members and 9 guests in attendance.

 

Since our last meeting, Draft 10 was circulated among the members and comments received. These few comments were discussed in during our session with un-expected discussion resulting. These additional comments will be incorporated into Draft 11 which will be circulated in mid June. If anyone outside of the working group would like to obtain a copy of this revision, it will be posted on the C5 web page associated with the PES-PSRC site.

 

We expect to be able to circulate draft 11, receive and incorporate comments, and then have draft 12 in circulation prior to the next meeting. Hopefully, we will then be able to include the subcommittee in the following draft circulation for comments of substance.

C6:     Relay Engineering in Power Engineering Curricula

The Working Group C-6 met with 14 members and 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 San Diego, were distributed and accepted. A brief review of the completed sections of the first draft of the paper took place. The following writing assignments are still due from Working Group members.

 

Description

Assigned

Importance of Protection for Industry

 

Damir Novosel & Ronald Levorin

Utilities Training Programs and Adequacies

Ø       Industry needs

Ø       Industry Training

Ø       Importance of Mentoring

Tom Wiedman & Mike Bloder

Background Materials and/or Pre-requisites

 

Tony Napikoski & Ashok Gopalkrishnan

 

 

Much discussion occurred on the if the Working Group should actually develop course modules and course content. Jaime De La Ree and Juan Gers agreed to develop one course module for the next meeting, so the Working Group can discuss the effort involved.

C8:    Phasor-Based Models for Analyzing Relay Performance

The working group did not meet in Columbus. The Working Group paper has been accepted for publication as an IEEE Transactions Paper. The working group has completed its assignment, and can be dissolved.

C9:    Under Frequency Load Shedding and Restoration

The working group met on Wednesday, May 25th, with 8 members and 7 guests present. Draft 4 of the proposed PC37.117 guide was submitted to the IEEE Editor for pre-ballot review. Comments have been received from the editor that will require editorial document modifications. The working group will be asked if they are aware of any copyrighted materials, patented devices, and trademarked terms that are used in the document. Other boilerplate disclaimers and statements will be added as required. Rich Hunt volunteered to make the editorial changes to the document per the IEEE editor’s comments.

 

The resulting Draft 5 document will be submitted for balloting in pdf format. The final document will be submitted for publication as a Word document, with figures submitted separately in TIFF format. Benton Vandiver volunteered to convert figures to the required TIFF format.

 

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) previously volunteered to write the paper and prepare an associated presentation. Stan Horowitz also volunteered to help with the paper preparation.

 

A new guest asked if it was too late to submit new material for the guide. It was suggested that the new material could be addressed in the summary paper, but it was too late to include new material in the draft guide.

 

Tony Seegers, Subcommittee Chairman, suggested previously that work on the paper may proceed while the guide is in the balloting process, but the working group should wait until the guide is approved before submitting the paper for conference presentation.

C11:  Guide for Protection System Testing

WG C-11 met on May 24 in single session with total 29 in attendance (14 M, 15 G, 4 attendees signed up to become members). A brief background on the formation of C-11 was provided to the WG members and guests.

 

The attendees reviewed the PAR and approved the Scope and the various sections of the PAR

 

The WG members then continued with the review of contributions from the TF meetings, and several sections were review and commented.

 

·         Test setup configuration and equipment for end-to end testing of transmission line protection scheme

·         Affects of inaccuracies of synchronization

·         Methods of generating test modules, CT saturation, DC offset, fault impedance, and varying inception angles were amongst some of the discussion

·         Portions of RAS and SPS testing section was also reviewed and commented

 

New topics were assigned to volunteers and some new members volunteered to review and critique the Guide for improvements.

 

Below is a copy of the Assignment, Scope, Purpose and reason for the Guide as approved by WG members for the PAR:

 

Assignment: The working group will develop a guide for system application test requirements, scope and level of tests, and benefits for overall protective schemes. This assignment includes SPSs, end-to-end testing, data collection requirements, and the test procedure definitions.

 

Scope, Purpose, and Reason:

 

This guide is intended for power system protection professionals. It will include a reference listing of type tests for protective devices as well as overall protection scheme performance tests for various types of protection schemes. The Guide will describe the methods, extent, and types of protection scheme tests. Interlocking and control functions inherent to the protective schemes are included. This assignment encompasses overall system testing procedures, data collection requirements, as well as the test procedure definitions.

 

Reason:

This document will aid academic, manufacturing, application engineers and industry protection professionals with the overall benefits for protection scheme performance testing. The document will discuss benefits and challenges associated with verification of overall protection performance and will include information such as: a) Listing of type / production tests, b) Product performance tests from user view, c) Commissioning test - d) Relay settings are properly selected and calibrated e) Verify connections and calibration of settings, f) Trip/no trip and troubleshooting test

C12:  Performance of Relaying During Stressed Conditions

The WG met with 10 members and 18 guests present.  This was the second meeting of the WG.  The vice chairman, George Bartok, chaired the meeting in the absence of the WG chairman. 

 

Tom Wiedman gave a presentation on the current and future activities of NERC to mitigate cascading outages in response to the August 14, 2003 Northeast Blackout.  He covered the response to date to existing NERC recommendations relative to Zone 3 relay settings.  He also presented NERC recommendations relative to undervoltage load shedding, and assessment of the adequacy of underfrequency load shedding.  Tom also covered the status of NERC recommendations on adequacy and coordination of generator protection, transmission line rating methodology and event monitoring.

 

The WG reviewed the progress made to date in developing the first draft of the WG report.  Approximately 40% of the initial writing assignments for the body of the WG report have been completed.  The outline of the report was reviewed and outstanding writing assignments noted.  Those who volunteered to write sections of the initial draft were asked to submit their writing assignments by August 1st.  The goal is to have a first draft of the report circulated to the WG members before the September meeting in Calgary.

C13:  Undervoltage Load Shed

The C Subcommittee accepted the CTF13 Task Force as a new Working Group. The C13 Working Group will produce a report on Undervoltage Load Shed practices, and will hold the first meeting at the September meeting, with Art Buanno as Chair, and Shinichi Imai as Vice-Chair.

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

No activities to report

NERC   by Phil Winston

The NERC Byeond Zone 3 Document has been finalized. This document addresses all other over-reaching protection elements, such as overcurrent protection on lines 230kV or above. The document will be released in August, with utilities to complete their review by the end of 2006.

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

No activities to report