access icon free Electrical erosion test and condition assessment of SF6 CB contact sets

© The Institution of Engineering and Technology
Received 27/04/2016, Accepted 28/02/2017, Revised 15/02/2017, Published 24/03/2017

Dynamic resistance measurement (DRM) was proved to be an important method for condition assessment of contact sets of SF6 circuit breakers (CBs). The erosion of contact sets due to arc energy is a main factor that influences the electrical lifetime of the extinguishing chamber. In this study, a high-voltage CB synthetic circuit was used to produce fault current for electrical erosion tests on the contact sets. The contact sets were close to the end of their service life after a series of erosion tests. DRMs with DC amperages of 0.5, 1.0, and 1.5 kA were conducted on the two tested breakers in the interval of each erosion test. Five essential diagnostic parameters were extracted from the contact resistance curves as a function of contact travel. The variation of these parameters during the whole erosion tests were investigated to find an effective condition assessment method for contact sets. From the power balance at the contact surface, the material erosion rate due to metal evaporation for each erosion test was calculated and in good agreement to the experimental results. Finally, the contact length and contact resistance were employed as diagnostic parameters for condition assessment of contact sets.

Inspec keywords: switchgear testing; circuit breakers; switchgear insulation; erosion; SF6 insulation; contact resistance; electric resistance measurement; fault currents

Other keywords: current 1.0 kA; current 1.5 kA; dynamic resistance measurement; metal evaporation; contact surface; high-voltage CB synthetic circuit; contact length; electrical lifetime; fault current; circuit breakers; contact travel function; condition assessment method; electrical erosion test; diagnostic parameters; SF6 CB contact sets; current 0.5 kA; material erosion rate; contact resistance curves

Subjects: Inorganic insulation; Impedance and admittance measurement; Switchgear; Production facilities and engineering

References

    1. 1)
      • 6. Souza, R.T.D., Costa, E.G.D.: ‘Analysis of the correlation between the level of contact degradation and the dynamic resistance curve in circuit breakers’, J. Energy Power Eng., 2014, 8, pp. 1104–1111.
    2. 2)
      • 17. Fnineche, C., Aitken, O., Grieshaber, W.: ‘Current communication in high voltage switchgear contacts under high currents’. Proc. of ICEC 2014; The 27th Int. Conf. on Electrical Contacts, June 2014, pp. 1–6.
    3. 3)
      • 10. Stanisic, Z., Neimanis, R.: ‘A new ultra lightweight method for static and dynamic resistance measurements’. Conf. Record of the 2010 IEEE Int. Symp. on Electrical Insulation (ISEI), June 2010, pp. 1–4.
    4. 4)
      • 4. Razi-Kazemi, A.A., Vakilian, M., Niayesh, K.: ‘Priority assessment of online monitoring investment for power system circuit breakers – part I: qualitative–quantitative approach’, IEEE Trans. Power Deliv., 2013, 28, (2), pp. 928–938.
    5. 5)
      • 2. Landry, M., Mercier, A., Ouellet, G., et al: ‘A new measurement method of the dynamic contact resistance of HV circuit breakers’. 2005/2006 IEEE/PES Transmission and Distribution Conf. and Exhibition, 2006, pp. 1002–1009.
    6. 6)
      • 16. Fnineche, C., Aitken, O.: ‘Investigations on some parameters influencing the current commutation in the circuit breakers’. 26th Int. Conf. on Electrical Contacts (ICEC 2012), May 2012, pp. 497–501.
    7. 7)
      • 23. Cobine, J.D., Burger, E.E.: ‘Analysis of electrode phenomena in the high-current arc’, J. Appl. Phys., 1955, 26, (7), pp. 895–900.
    8. 8)
      • 13. Ding, C., He, J., Yuan, X., et al: ‘A comparison of contact erosion for two types arcing contact of SF6 circuit breakers in making process’. 2014 IEEE 60th Holm Conf. on Electrical Contacts (Holm), October 2014, pp. 1–7.
    9. 9)
      • 7. Obarcanin, K., Secic, A.: ‘Design and development of the software solution for analysis and acquisition of the high voltage circuit breakers dynamic resistance measurement results’. Information and Communication Technology, Electronics and Microelectronics (MIPRO), May 2015, pp. 1032–1036.
    10. 10)
      • 5. Razi-Kazemi, A.A., Vakilian, M., Niayesh, K., et al: ‘Priority assessment of online monitoring investment for power system circuit breakers – part II: determination of optimum number’, IEEE Trans. Power Deliv., 2013, 28, (3), pp. 1440–1446.
    11. 11)
      • 11. Souza, R.T.D., Araujo, J.F.D., Costa, E.G.D., et al: ‘A system for dynamic contact resistance with Arduino platform on MV and HV circuit breaker’. 2014 IEEE Int. Instrumentation and Measurement Technology Conf. (I2MTC) Proc., May 2014, pp. 369–373.
    12. 12)
      • 8. Cheng, T.T., Zhu, W., Jin, G., et al: ‘Influence of the injected current on dynamic contact resistance measurements of HV circuit breakers’. 2014 China Int. Conf. on Electricity Distribution (CICED), September 2015, pp. 1477–1481.
    13. 13)
      • 19. Schoenemann, T., Kiefer, J., Leung, S.Y., et al: ‘Commutation process in gas circuit breakers: close-operation and commutation failure during an open-operation’. Proc. of the 50th IEEE Holm Conf. on Electrical Contacts and the 22nd Int. Conf. on Electrical Contacts Electrical Contacts, 2004, September 2004, pp. 53–57.
    14. 14)
      • 1. Souza, R.T.D., Costa, E.G.D., Oliveira, A.C.D.: ‘Characterization of contacts degradation in circuit breakers through the dynamic contact resistance’. Transmission & Distribution Conf. and Exposition – Latin America (PES T&D-LA), 2014 IEEE PES, 2014, pp. 1–6.
    15. 15)
      • 12. Khoddam, M., Sadeh, J., Pourmohamadiyan, P.: ‘Performance evaluation of circuit breaker electrical contact based on dynamic resistance signature and with health index’, IEEE Trans. Compon. Packag. Manuf. Technol., 2016, pp. 1–8.
    16. 16)
      • 15. Tepper, J., Seeger, M., Votteler, T., et al: ‘Investigation on erosion of Cu/W contacts in high-voltage circuit breakers’, IEEE Trans. Compon. Packag. Technol., 2006, 29, (3), pp. 658–665.
    17. 17)
      • 14. Shea, J.J.: ‘High current AC break arc contact erosion’. 2008 Proc. of the 54th IEEE Holm Conf. on Electrical Contacts, October 2008, pp. xxii–xlvi.
    18. 18)
      • 21. Zhou, X., Heberlein, J., Pfender, E.: ‘Theoretical study of factors influencing arc erosion of cathode’, IEEE Trans. Compon. Packag. Manuf. Technol. A, 1994, 17, (1), pp. 107–112.
    19. 19)
      • 22. Benilov, M.S., Marotta, A.: ‘A model of the cathode region of atmospheric pressure arcs’, J. Phys. D, Appl. Phys., 1995, 28, pp. 1869–1882.
    20. 20)
      • 20. Ukil, A., Zlatanski, M., Hochlehnert, M.: ‘Monitoring of HV generator circuit breaker contact ablation based on acoustic emission’, IEEE Trans. Instrum. Meas., 2013, 62, (10), pp. 2683–2693.
    21. 21)
      • 3. Landry, M., Turcotte, O., Brikci, F.: ‘A complete strategy for conducting dynamic contact resistance measurements on HV circuit breakers’, IEEE Trans. Power Deliv., 2008, 23, (2), pp. 710–716.
    22. 22)
      • 18. kiefer, B.O.J., Schoenemann, T.: ‘Commutation of current in generator circuit breaker’. 21st Int. Conf. on Electric Contact Phenomena, 2002, pp. 597–602.
    23. 23)
      • 9. Stanisic, Z.: ‘Method for static and dynamic resistance measurements of HV circuit breaker’. 2011 Second IEEE PES Int. Conf. and Exhibition on Innovative Smart Grid Technologies (ISGT Europe), December 2011, pp. 1–5.
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