Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

access icon openaccess Novel method for restraining 35 kV shunt reactor switching overvoltage – phase controlled breaker

This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Received 21/08/2018, Accepted 17/09/2018, Published 01/10/2018

Phenomena such as current chopping, arc reignition and equivalent current chopping might appear when cutting off shunt reactor. Overvoltage caused by switching will lead to interphase fault in related equipment and inter-turn insulation damage in the shunt reactor, which will threaten the safety of electrical equipment. In recent years, equipment breakdowns caused by 35 kV shunt reactor switching overvoltage in 220 kV substation occur frequently in China, endangering the safe and stable the power grid. In this study, the mechanism, perniciousness and suppression of shunt reactor switching overvoltage are systematically analysed. The strategy of phase controlled breaker is put forward, and the overvoltage measurement and power systems computer aided design (PSCAD) simulation analysis are carried out. The work and conclusion of this study provide the solutions and engineering experience for the switching overvoltage suppression of 35 kV shunt reactor.

Inspec keywords: overvoltage protection; substation protection; circuit breakers; power grids; fault diagnosis; reactors (electric)

Other keywords: voltage 220.0 kV; phase controlled breaker; interphase fault; power grid; shunt reactor switching overvoltage; equivalent current chopping; equipment breakdowns; overvoltage measurement; inter-turn insulation damage; arc reignition; voltage 35.0 kV; switching overvoltage suppression; PSCAD simulation analysis

Subjects: Switchgear; Power system protection; Substations; Transformers and reactors

References

    1. 1)
      • 13. Lijun, Y.: ‘Calculation an analysis of lighting overvoltage protection for HV shunt reactors’, High Volt. Eng., 1995, (4), pp. 59–60.
    2. 2)
      • 5. Zhao, S.: ‘The research on overvoltage in switching off shunt reactors of 35 kV vacuum circuits breaker’ (Tianjin University, Tianjin, 2014).
    3. 3)
      • 14. Eskandari, H., Jafarian, P.: ‘Effect of interphase magnetic coupling of shunt reactor on transmission-line open-phase overvoltages and neutral reactor optimisation’, IET Gener. Transm. Distrib., 2017, 11, (4), pp. 1004–1011.
    4. 4)
      • 2. Yunzhu, A., Xishan, W., Tingting, Z., et al: ‘Overvoltage of shunt reactor caused by prebreakdown of SF_6 breaker and protection measures’, High Volt. Eng., 2013, 39, (1), pp. 75–80.
    5. 5)
      • 1. Yanxin, S.: ‘Research on vacuum circuit breaker switching shunt capacitor overvoltage’, North China Electric Power, 2005, (6), pp. 5–8.
    6. 6)
      • 9. Qiuqin, S., Qingmin, L., Guan, W., et al: ‘Characteristic analysis of the shunt reactor switching over-voltages interrupted by SF6 circuit breakers with chopping current’, Trans. China Electrotech. Soc., 2010, 25, (2), pp. 170–176.
    7. 7)
      • 7. Jidong, S.: ‘Research on overvoltage of using vacuum circuit breaker to switch 35 kV shunt reactors’ (Zhejaing University, Hangzhou, 2014).
    8. 8)
      • 12. Iliceto, F., Cinieri, E., Vita, A.D.: ‘Overvoltages due to open-phase occurrence in reactor compensated EHV lines’, IEEE Trans. Power Appar. Syst., 2007, PAS-103, (3), pp. 474–482.
    9. 9)
      • 11. Fuhua, D.: ‘Research on controlled vacuum switches and their applications’ (Dalian University of Technology, Liaoning, 2006).
    10. 10)
      • 8. Bairong, J., Dian, L., Zhongkai, C.: ‘Control of switching overvoltage for 35 kV shunt reactor’, High Volt. Appar., 2013, (10), pp. 64–71.
    11. 11)
      • 10. Dawei, Y.: ‘Test and research on disconnecting shunt reactor with SF6 breakers’, High Volt. Eng., 1992, (2), pp. 50–55.
    12. 12)
      • 3. Ning, D., Yong-Gang, G., Jing-sheng, Z., et al: ‘Protections of overvoltages caused by 40.5 kV vacuum circuit breakers switching off shunt reactors’, High Volt. Eng., 2010, 36, (2), pp. 345–349.
    13. 13)
      • 6. Fadong, P., Jidong, S., Yuan, L., et al: ‘Study on overvoltage protection schemes for the 35 kV vacuum circuit breakers switching off shunt reactors in 220 kV substation’, Energy Eng., 2013, (6), pp. 13–16.
    14. 14)
      • 4. Yonggang, G., Qiwen, T., Weidong, L., et al: ‘Overvoltage mechanism of switching off shunt reactors for 40.5 kV vacuum circuit breakers’. Proc. Chin. Soc. Electr. Eng. (China), 2012, vol. 32, (33), pp. 124–132.
http://iet.metastore.ingenta.com/content/journals/10.1049/joe.2018.8370
Loading

Related content

content/journals/10.1049/joe.2018.8370
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Print this page
This is a required field
Please enter a valid email address