Academic Journal of Engineering and Technology Science, 2021, 4(2); doi: 10.25236/AJETS.2021.040207.
Weiqi Lian, Tao Zhao
North China Electric Power University (Baoding), Baoding, China
The partial discharge and condensation in distribution switchgear seriously affect the insulation state, which can cause insulation failure and lead to the shutdown of electrical equipment. This paper designs and develops a set of insulation online monitoring and anti-condensation control system for distribution switchgear. By comprehensive use of transient earth voltage (TEV) technology and ultrasonic technology for partial discharge detection, temperature and humidity detection, control technology and wireless communication technology, the system realizes the online monitoring of insulation, temperature and humidity in switchgear. In addition, the system can automatically control the heater, fan or other environmental adjustment equipment and reduce the occurrence of condensation in switchgear.
Switchgear, Partial Discharge Monitoring, Temperature and Humidity Monitoring, Condensation
Weiqi Lian, Tao Zhao. Design of Insulation Online Monitoring and Anti-Condensation Control System for Distribution Switchgear. Academic Journal of Engineering and Technology Science (2021) Vol. 4, Issue 2: 45-51. https://doi.org/10.25236/AJETS.2021.040207.
 Feng gang, Fan Kanglin, Zhou Jun, et al. (2011) On-line monitoring System on High-voltage Switchgear Inner Insulation Fault. Electrical Measurement Instrumentation, 48(05), 60-62.
 Smith J E, Paoletti G, Blokhintsev I. (2004) Experience with on-line partia discharge analysis as a tool for predictive maintenance for medium-voltage switchgear systems. IEEE Industry Applications Magazine, 10(5), 41-47.
 Davies N, Jones D. (2008) Testing distribution switchgear for partial discharge in the laboratory and the field. IEEE International Symposium on Electrical Insulation, IEEE: Vancouver, Canda, 716-719.
 Berler Z, Blokhintsev A G L, Paoletti G, et al. (2000) Practical experience in on-line partial discharge measurements of MV switchgear systems. IEEE International Symposium on Electrical Insulation, IEEE: Anaheim, USA, 382-385.
 Ren Shuangzan, Zeng Xiaoming, Wu Jingfeng, et al. (2020) Development of a portable detector for partial discharge in switchgear based on TEV and ultrasonic. Electrical Measurement and Instrumentation, 57(08), 1-6.
 Zhang Xiaoxin, Ren Qingqing, Lin Feng, et al. (2019) Research on online monitoring system of switchgear partial discharge based on acoustic and electric combination. Electrical Measurement Instrumentation, 56(23), 107-111.
 Lv Fangcheng, Li Haide, Wang Zijian, et al. (2013) Research on Partial Discharge Detection and Location of Switchgear Based on TEV and Ultrasonic Wave Methods. Electrical Measurement Instrumentation, 50(11), 73-78.
 Liu Yi, Ma Shuang, Zhang Hongping, et al. (2013) Design of Transient Earth Voltage Sensor for Partial Discharge Monitoring. Electrical Measurement Instrumentation, 50(05), 115-119.
 Liu Yunpeng, Wang Jiangwei, Pei Shaotong, et al. (2019) Method for identifying and classifying partial discharge based on short time Fourier transform and sparse representation. Electrical Measurement Instrumentation, 56(23), 31-36.
 Yu Ying, Li Ruipeng, Huang Chao, et al. (2015) Study on TEV Distribution Characteristic of Switchgear Surface Based on Finite-Difference Time-Domain Method. Insulating Materials, 48(4), 45-51.