Development of Online Monitoring System to Vacuum Pressure of Vacuum Arc Extinguish Chamber

Abstract:

The vacuum pressure of vacuum circuit breakers (VCBs) is an important condition to ensure its operational performance, online monitoring of the vacuum pressure of VCBs is an important issue for reducing the accident rate of VCBs and the losses of personnel and property, achieving the intelligence of VCBs. In this paper, 10kV ring network switch cabinet (RNSC) is regarded as the object of study, to achieve its online monitoring. Through analyzing the magnetic field outside the vacuum arc extinguish chambers when the vacuum pressure of VCBs increases, a new method which is based on the comparison of the interphase magnetic field between the corresponding vacuum arc extinguish chambers in RNSCs then monitor the vacuum pressure of VCBs is proposed and demonstrated, and the result established a theoretical basis on the research of the online monitoring system of the vacuum pressure for the vacuum arc extinguish chambers.

• Periodical: Applied Mechanics and Materials (Volumes 325-326)
• Pages: 1412-1415
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.325-326.1412
• Online since: June 2013
• Authors: Chun Guang Hou, Shi Yu Zhang, Yun Dong Cao, Shu Xin Liu
• Keywords: Online Monitoring, Ring Network Switch Cabinet, Vacuum Arc Extinguish Chamber, Vacuum Pressure

References

[1] Hou Chunguang, Cao Yundong, etc: The Analysis of Interphase Magnetic Field between Vacuum Breakers, Vol. 26 (2004), pp.274-276.

[2] Wang Jihui, Ning Huiying, The Magnetic Field Analysis of the Vacuum Interrupter Based on ANSYS Software, Journal of Shenyang Ligong university, Vol. 29 (2010), pp.32-34.

[3] Shu Naiqiu, Wang Chengjiang, Mao Huihe, Huang Zhongying. Acoustic Emission Technique for Detecting the Vacuum Pressure of Vacuum Interrupter, High Voltage Apparatus, Vol. 39 (2003), pp.43-48.

[4] Cao Xiaolong, Zhang Zhiwu, etc. Summary on the Vacuum Detection Method of Vacuum Circuit Breakers, Vacuum Switch(2010),pp.1-4.