114 / 2024-04-12 22:24:14

Application of the Mayr Arc Model for Characterizing the Interruption Performance of CO2-based High Voltage Circuit Breakers

Mayr model,,Circuit breaker

Finding alternatives for sulfur hexafluoride (SF6) circuit breakers has been the subject of extensive study in recent times [1,2]. Carbon dioxide (CO₂)-based gas mixture circuit breakers is one of the most promising substitutes suggested for this purpose [3, 4]. Among other requirements, such breakers should provide a high thermal interruption performance in crucial test duties such as short line faults (L90, L75, etc.). Developing tools or models for predicting the interruption process in these types of breakers during such test duties is therefore highly beneficial.

This paper conducts a thorough analysis of the applicability of the Mayr arc model [5] in examining different parameters affecting thermal interruption process in high voltage CO₂ -based circuit breakers. More specifically, we investigate how the thermal interruption process is affected by various parameters related to the test circuit, including time delay of the transient recovery voltage (TRV), line to ground capacitance, line impedance, and the driving voltage. This analysis has been performed for various cooling conditions. Such analysis provides better understanding of the complex interactions between the arc and circuit during the current interruption process.

References

[1] Y. Kieffel , et al. IEEE Power and energy magazine (2016), 14, 32-39.

[2] Seeger, Martin, et al.  Plasma Physics and Technology 4.1 (2017): 8-12.

[3] J. Korbel, et al. Journal of Thermal Science and Engineering Applications 15.1 (2023): 011002.

[4] P.C. Stoller, et al. IEEE Transactions on Plasma Science (2013), 41, 2359-2369.

[5] Μ. Murano, et al, IEEE Trans, vol. PAS-94, no. 5, pp. 1890-1901, (1975).