Attendance
24 persons attended the meeting, and 13 were interested in being members of the Working Group.
Name Affiliation
Ed Gulski* Delft University of Technology
Ralph Patterson* Power Products & Solutions
Frank de Vries * Alliander
Tim Wall Alabama Power Company
Martin von Herrmann The VON Corporation
Craig Goodwin* HV Diagnostics
Jean-Francois Drapeau Hydro-Quebec (IREQ)
Lokman A. Dahlan* Prysmian Malaysia
Dwan Zhao Aetna Wire
Martin Baur Baur Test Equipment
Henning Oetjen* HDW Electronics
Brian Mraz HV Diagnostics
Frank Petzold * Sebakmt
Sacha Markapous* Doble Lemke
Nagu Srinivas* Retired/DTE Energy
Josh Parkel Neetrac
Nigel Hampton* Neetrac
Jacques Cote* Hydro Quebec
Joseph Carey National Grid
Dennis Wozniak Retired
Luigi Testa Techmp
John Densley* Arborlea
Wim Boone* Kema
John Cooper Consultant
* declared interest to be member of WG F05W
Agenda:
1. Welcome by Ed Gulski
• Introduction of members and guests
• IEEE SA Standards Board Bylaws on Patents & Inappropriate Topics for IEEE Working Group Meetings
2. Agenda Meeting Spring 2010
3. Minutes F05D Meeting Fall 2009
4. Contributions about application of damped AC voltages methods description and experiences by manufacturers and users:
• Application of DAC voltages for testing and diagnosis of 110 kV XLPE cables, Frank Petzold, SebaKMT, Germany, (see Appendix F11)
• Decision flowchart PD detection at damped AC (DAC) Voltage testing, Frank de Vries, Alliander, The Netherlands, (see Appendix F12)
5. Discussion 1.0 draft proposal Guide for Field-Testing of Shielded Power Cable Systems Rated 5kV and Above with Damped Alternating Current Voltage (DAC)/PE/IC/F05W/400.4 P400.4, (see Appendix F13)
6. Future activities, task allotments
7. Closure
Minutes
Ed Gulski welcomed all ICC members and guests to the first meeting of the new working group on damped AC testing (DAC) of cable systems. After the introductions were completed, he provided an opportunity for participants to identify patent claims, patent application claims, or patent application claims of which the participant is personally aware and that may be essential for the use of this standard. No patent claims, patent application claims, or holders of patent claims or patent application claims have been identified at this time.
The minutes of the fall 2009 meeting were approved unanimously.
General Discussion
− Ed Gulski reported that different users of the DAC technology have declare their interest to provide input to the draft preparation: cable manufacturers: PRYSMIAN, Telefonica, TKF, utilities SPPG, CRIEPI).
− The draft was completed and posted to the ICC website on March 18, 2010 and could be reviewed.
− Ed Gulski opened the floor for comments and discussion concerning the initial draft
− Nigel Hampton noted that the title refers to 5 kV and above and asked about the expectations, e.g., will this go into extra high voltage? Gulski replied that due to the fact that present state-of the art is up to 220 kV it means that EHV is also included.
− Wim Boone made the comment that most experience has been at high voltage. Regarding voltage withstand testing 50 excitations as proposed in the past by Cigre was decided as a good representative number. the
− Nagu Srinivas commented that we need to have representative experience of voltage levels included in the Guide. Gulski replied that based on the survey made in 2008 and the contributions from DG F05D a list of maximum test voltages will be prepared.
− John Densley asked about the experience at the medium voltage levels. Gulski replied that with regard to HV EHV the maximum test voltage levels as given in the IEC 60840, IEC 60067. In China, there was substantial experience with medium voltage testing and EPRI became involved. For HV cables they propose to use the IEC 60840.
Contributions
There were two contributions:
a) “Application of DAC voltages for testing and diagnosis of 110 kV XLPE cables”, Frank Petzold, SebaKMT, Germany, (see Appendix F11). The presentation discussed practical issues of DAC voltage testing, PD detection, and dielectric loss estimation.
b) “Decision flowchart PD detection at damped AC (DAC) Voltage testing”, Frank de Vries, Alliander, The Netherlands, (see Appendix F12). The presentation showed the use of PDIV for the decision support about accepting/rejecting a cable during after-laying test.
General Discussion
• Discussion of the first draft proposal Guide for Field-Testing of Shielded Power Cable Systems Rated 5kV and Above with Damped Alternating Current voltage
(DAC)/PE/IC/F05W/400.4 P400.4, (see Appendix F13)
• Ed Gulski stated that the draft document was compiled with a similar format to 400 omnibus and requested that we review sections 1, 2, 3 and 4 and comment as applicable. The emphasis of the present discussion was to review sections 5, 6 and 7.
• Section 5. Introduction: This was the result of the collective effort of the discussion group and was open for review.
• Section 6: Damped Alternative Current Discussion
• Nagu Srinivas commented that we should have sections 6.3 and 6.4 for diagnostic testing.
• Content of the Guide has been discussed and changes have been proposed as shown in Appendix F14.
• Ed Gulski then presented flow charts for discussion that described procedures of on-site electrical tests on power cables using damped AC (DAC) voltage
Action Items
PAR Approval Date
Ed Gulski stated that the PAR for IEEE 400.4 was approved on March 25, 2010 and the working group has until December 31, 2014 to approve and issue final Standard.
• Ed Gulski – Following the discussion during F05W meeting, the need to reference the relevant IEEE cable standards was identified.
1. IEEE Std 4TM, IEEE Standard Techniques for High Voltage Testing
2. IEEE Std 48TM, 2006, Standard Test Procedures and Requirements for Alternating – Current Cable Terminations 2.5kV through 765kV
3. IEEE STD 404TM, 2006, IEEE Standard for Extruded and Laminated Dielectric Shielded Cable Joints Rated 2 500V to 500 000V.
4. IEEE STD 386 TM, 2006 Standard for Separable Insulated Connector Systems for Power Distribution Systems above 600V.
5. IEEE STD 510TM, IEEE Recommended Practices for Safety in High Voltage and High Power Testing.
• Ralph Patterson will review these Standards for relevance and present to the working group for review.
• Ed Gulski will post revised document on the website for group comments once changes are incorporated.
• Participants should submit comments to Ralph Patterson or Ed Gulski before next scheduled ICC meeting.
Next Meeting
The next meeting of this group would be at the Fall 2010, ICC meeting in Scottsdale, AZ Fort McDowell on October 17-20, 2010.
The meeting was adjourned at 12:00.
The minutes were prepared by Ralph Patterson and Ed Gulski.
Agenda:
1. Welcome by Ed Gulski
Introduction of members and guests
IEEE SA Standards Board Bylaws on Patents & Inappropriate Topics for IEEE
Working Group Meetings
2. Agenda Meeting Fall 2010
3. Review minutes of Spring 2010
4. Review of IEEE and ANSI/NETA documents for relevance of Damped AC Voltage testing.
5. Discussion 1.0 draft proposal Guide for Field-Testing of Shielded Power Cable Systems Rated 5kV and Above with Damped Alternating Current Voltage (DAC)/PE/IC/F05W/400.4 P400.4, (Appendix 1)
Minutes
The WG Chair, Ed Gulski, welcomed all ICC members and guests to the working group meeting. After the introductions were completed, he provided an opportunity for participants to identify patent claims, patent application claims, or patent application claims of which the participant is personally aware and that may be essential for the use of this standard. No patent claims, patent application claims, or holders of patent claims or patent application claims have been identified at this time.
The attendance was 10 WG members and 10 guests as listed below:
*Ed Gulski On-site Solutions
*Ralph Patterson Power Products & Solutions
*Frank de Vries Alliander
Martin von Herrmann The VON Corporation
*Craig Goodwin HV Diagnostics
Jean-Francois Drapeau Hydro-Quebec (IREQ)
*Frank Petzold Sebakmt
*Jacques Côté Hydro Quebec
*John Densley ArborLec
Kraig Bader Fort Collins Utilities
*Mark Fenger Kinectrics
Wolfgang Hauschild Highvolt, Germany
Alexander Kraetge Omicron
Ben Lanz Imcorp
*Eberhard Lemke Doble Lemke
Jody Levine Hydro One Networks
*David Lindsay EPRI
Bruce Olson High Voltage Inc.
Brieana Reed-Harmel Peterson
Scott Sander Prysmian
* Working Group Member
The minutes of the Spring 2010 meeting were approved without dissent.
The PAR for IEEE 400.4 was approved on March 25, 2010 and the WG has until December 31, 2014 to approve and issue a final Standard.
Review of IEEE Documents
The following IEEE standards were relevant to the WG and the ANSI standards include after laying tests:
1. IEEE Std 4TM, IEEE Standard Techniques for High Voltage Testing
2. IEEE Std 48 TM, 2006, Standard Test Procedures and Requirements for Alternating – Current Cable Terminations 2.5kV through 765 kV
3. IEEE STD 404 TM, 2006, IEEE Standard for Extruded and Laminated Dielectric Shielded Cable Joints Rated 2 500 V to 500 000V
4. IEEE STD 386 TM, 2006 Standard for Separable Insulated Connector Systems for Power Distribution Systems above 600 V
5. IEEE STD 510 TM, IEEE Recommended Practices for Safety in High Voltage and High Power Testing
6. ANSI/NETAA TS-2009 Standard for Acceptance Testing Specifications for Electrical Power Equipment and Systems
7. ANSI/NETA MTS-2007 Standard for Maintenance Testing Specifications for Electrical Power Distribution Equipment and Systems
It was noted that while some of these standards have been suspended the information was still valid and should be included for reference.
General Discussion
The present draft of the Guide was developed from information in the IEEE 400 Omnibus. Sections 1, 2, 3 and 4 are, for the most part, a duplication of the efforts in IEEE 400. The main emphasis of the present review will be on section 5 with a quick review of sections 1, 2, 3 and 4.
Wolfgang Hauschild recommended that the review include IEC 61230 2003 “Guide for Temporary Protective Grounding Systems Used in Substations”.
Jacques Côté recommended that the IEEE Standards manual be reviewed to be sure the latest procedures are included. Section 3.3 should be included.
Craig Goodwin – all acronyms device under test (DUT) should be included in a list.
There is a need to review IEEE 400 Omnibus as reference for the methodology of Damped AC Voltage testing.
Chapter 5 – Table 1 should not be included in its entirety, only what is relevant to 400.4 is needed (also need to review table 1, 2, 3, 4 and 5).
Ed Gulski will amend Figure 2 in accordance with discussions relating to relative information.
Ben Lanz recommended that parameters for partial discharge be included as they relate to Tables 4 and 5.
Tan Delta designation should only be used as is relates to a diagnostic test.
Chapter 6 – Charging time, length and frequency, all need to be addressed when discussing basic principles as there is some limiting factors and substantial differences. After general discussion of Figures 4, 5 and 6 and Table 8, it was recommended that the criteria for establishing acceptable parameters is moved to an annex to be consistent with the format of the IEEE 400 series documents.
Action Items
Ed Gulski will post revised document on the website for group comments once changes are incorporated.
Ralph Patterson will review the IEC 61230 Standards for relevance and present to the working group for review.
Comments on the new draft should be sent to Ralph Patterson and Ed Gulski before next scheduled ICC meeting.
Next Meeting
WG Chair Ed Gulski stated that the next meeting of this group would be at the Spring 2011, ICC meeting.
The meeting was adjourned at 12:00.
The minutes were prepared by Ralph Patterson and Ed Gulski.
