AGENDA

C: System Protection

Chair: J. S. Thorp, Chair

Vice Chair: D. Novosel, Vice-Chair

The System Protection Subcommittee met on May 12, 1999 with 16 members and 26 guests in attendance.

C1: SOFTWARE MODELS FOR RELAYS

Chair: P. G. McLaren

Vice Chair: K. K. Mustaphi

Established: 1995

Output: IEEE Transactions Paper

Expected Completion Date: 1999

The Working Group met with 7 members and 7 guests present. The chairman reported the results of the sub-committee ballot which included One negative ballot (from a member of the WG) requesting two of his references to be added to the paper. Following discussion the WG passed a motion, "That the additional references not be added on the grounds that the WG had not had time to consider the references." (Sachdev, Tziouvaras). The chairman explained that the WG would continue in existence to deal with any discussions of the paper following publication.

C3: NEW TECHNOLOGY RELATED TO TRANSMISSION AND DISTRIBUTION PROTECTION

Chair: A. P. Apostolov

Vice Chair: P. A. Solanics

Established: 1994

Output: Report to Main Committee and IEEE Transactions Paper

Expected Completion Date: 1999

The WG met on May 11, 1999; 10 members and 37 guests were present. One presentation was made at the meeting: Optical Current Sensor Systems – Where are we now ? Where are we going ? by Harley Gilleland

There were very interesting discussions and comments on different aspects of the presentations. The second part of the working group meeting was dedicated to discussions on the use of protective relays for breaker control. Several utilities are implementing panels without control switches. Test switches however are there to stay. Selection of topics for presentations at the September 1999 meeting will be made by the end of July 1999. Minutes of the meeting and other Working Group information will be available on the Web site as soon as a PSRC server is available.

C4 :APPLICATION OF INTELLIGENT SYSTEMS IN PROTECTION ENGINEERING

Chair: M. Kezunovic

Vice Chair: D. Novosel

Established: 1993 Output: Subcommittee Report

Expected Completion Date: 1998

Status: Final report completed.

No meeting was held at this time. The Working Group report will be put on the subcommittee web page when the chair receives an electronic version from M. Kezunovic. The Woking Group will stay in existence until the panel at the Singapore IEEE winter meeting

C6 :Wide Area protection and emergency control

Chair: Miroslav Begovic

Vice Chair: Damir Novosel

Established, 1996

Expected Completion Date: 2000

The Working Group met in a single session with 8 members and 5 guests in attendance. The work began with a brief presentation about the Panel Session "Wide Area Protection and Emergency Control", which was held as part of the program of the 1999 IEEE PES Winter Meeting in New York, in February 1999. The presenters were Chair and Co-Chair of the Working Group C-6, and representatives of French, Swedish, and two US utilities (BPA and AEP). The session was well attended and the discussion was lively. The Group then continued discussion of the draft of our report. It was decided to make contacts with a few additional potential corresponding members in order to provide additional useful information for the reports, such as reliability of the SPS, analytical framework for wide area disturbance analysis, and addition of more material to our data base of wide area disturbances. New assignments were also made for additions to and revisions of the report. We are planning to meet in September in a single session (overhead projector will be needed.)

C7 :EMTP Applications to Power System Protection

Demetrios Tziouvaras, Chair

Lubomir Kojovic, Vice Chair

Established, 1997

Expected Completion Date: 2001

The WG presented a one day tutorial on Monday, May 9, 1999. There were 30 people in attendance. The WG met on May 11, 1999 with 5 members and 13 guests present. The WG agreed to bring the existing tutorial to PES status and present it to IEEE summer and winter meetings and other regional conferences.

C8 :Phasor-Based Models for Analyzing Relay Performance

Mike Meisinger, Chair

M. S. Sachdev, Vice Chair

Established, 1997

Expected Completion Date: 2002

Output: Transactions Paper

Liaison Reports:

The Working Group met at 8:00 AM on May 12, 1999 in G-H Salon, Albuquerque Marriott, Albuquerque, NM. Ten members and Ten guests were present.

The Minutes of the WG meeting held on January 13, 1999 in Las Vegas, NV as distributed by Email were approved. Copies of Section III.B.3, "Software Program Development Tools" prepared by Gabriel Benmouyal were distributed. The suitability of the draft was reviewed and some comments that were minor in nature were provided to Gabriel.

It was agreed that the members should send their contributions to Moh Sachdev by June 15, 1999. Moh will compile the paper and distribute it to the members soon afterwards

C9 : Guide for the Application of Protective Relays used for Abnormal Frequency Load Shedding and Restoration

Alex Apostolov, Chair

Ken Behrendt, Vice Chair

Established, 1999

Expected Completion Date: 2000

The Working Group met on May 11,1999. Alex Apostolov began the single session working group meeting with introductions. There were 24 in attendance, with 13 members and 11 guests. Mukesh Nagpal, from Power Tech Labs, presented the tutorial portion of his paper titled "Static and Dynamic Design of Frequency Load Shedding Schemes". After some discussion on the proposed wording for the Working Group Project Authorization Request, the attendees agreed on the following revised title, scope and purpose for the guide, with a planned completion date of December, 2001:

Title: Guide for the Application of Protective Relays used for Abnormal Frequency Load Shedding and Restoration

Scope:

This project will develop a Guide for the application of protective relays used for load shedding and restoration during electric power system abnormal frequency conditions. It will present background information, bibliography, and recommendations. It discusses abnormal frequency power system behavior, existing load shedding and restoration practices, the abnormal frequency function of typical protective relays, and possible new methods for improved load shedding and restoration. This project is limited to electric power system applications and will not include Abnormal Frequency Protection for Power Generating Plants.

Purpose:

There is currently no IEEE Guide for the application of protective relays used for load shedding and restoration during electric power system abnormal frequency conditions. This Guide will complement the IEEE Guide for Abnormal Frequency Protection of Power Generating Plants. It will provide information to assist in the application of load shedding and restoration schemes. Methods and examples will be provided.

C10: EFFECTS OF COMPANY RE-STRUCTURING ON PROTECTIVE RELAYING

Jaime De La Ree, Chair

Tefvik Sezi, Vice Chair

Established, 1999

Output: A paper to the main committee and an IEEE Transactions Paper

Expected Completion Date: 2002

The WG met on Tuesday, May 11, 1999. There were 9 members and 16 guests in attendance. Th Working Group agreed on an assignment:

The Working Group will study the impact of the changing utility environment on the prevailing protection practices. The WG outcome will be a paper to the main committee and an IEEE paper.

C4TF Relay Protection Issues during System Restoration

Tarlochan Sidu, Chair

The Task Force will meet at the next meeting to consider forming a Working Group