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Akademický článek

Feature extraction and state discrimination of opening and closing coils of high-voltage circuit breakers based on corner point location

Autor: WANG Shaohe, JIANG Jiongting, JIANG Keruo, ZHANG Miaobin, WANG Fenghua, CHEN Xiaoxin

Publikováno v: Zhejiang dianli, Vol 43, Iss 6, Pp 125-132 (2024)

The extraction of current characteristics from the opening and closing coils is a crucial method for monitoring the state of high-voltage circuit breakers. Based on the waveform patterns of the opening and closing coil currents in high-voltage circui

Externí odkaz: https://doaj.org/article/7c3bec3e0cdb4d74bb2c6d5ab51c4df2

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Akademický článek

An optimal online monitoring scheme for lightening arresters based on the three-phase imbalance of leakage current

Autor: JIANG Nannan, WANG Wenhao, LIN Jiajun, WANG Shaohe, TAN Zhixiang

Publikováno v: Zhejiang dianli, Vol 43, Iss 5, Pp 116-124 (2024)

The online monitoring data of lightning arresters are susceptible to environmental temperature， humidity， and surface contaminants. However， conventional alarm threshold setting approaches for leakage current may result in false alarms. To addr

Externí odkaz: https://doaj.org/article/14187ef932a6403c89e5777828b8eef6

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Akademický článek

Vibration characteristic analysis of low-frequency fast circuit breakers based on improved EWT

Autor: ZHANG Miaobin, WANG Shaohe, WANG Fenghua, CHEN Xiaoxin, ZHAO Lin

Publikováno v: Zhejiang dianli, Vol 42, Iss 12, Pp 28-35 (2023)

The violent vibrations generated during switching of low-frequency fast circuit breakers （LFFCBs） can potentially impact their mechanical performance. However， there is currently a lack of assessment methods for evaluating the effects of these

Externí odkaz: https://doaj.org/article/604ccc1faf9c4452a4e0ab955f84250a

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