Results 1 to 10 of about 448 (265)

DC interruption characteristic of vacuum circuit breaker

Electrical Engineering in Japan, 2005
AbstractA high‐speed vacuum circuit breaker (HSVCB) has been investigated. HSVCB makes high‐frequency current superimposed on a fault current so that the current is forced to be zero and is interrupted. Its interruption performance is considered to be dependent on the rate of change of the current (di/dt). As a fundamental research, we investigated the
Odaka, Hiromi, Yamada, Masataka, Sakuma, Ryohei, Ding, Cuie, Kaneko, Eiji, Yanabu, Satoru   +5 more
openaire   +2 more sources

Transient characteristic of mode-conversion strategy for pumped storage machines based on eco-friendly generator circuit breaker and phase reversal disconnecting switch

International Journal of Electrical Power & Energy Systems
The generator circuit breaker is a special breaker located between a pumped storage machine and a step-up transformer. The first requirement for generator circuit breaker is to interrupt fault currents with delayed current zero, preventing the damage of ...
Weijie Wen, Tiewei Hu, Jinghan Fan, Bin Li, Zhihao Zhu   +4 more
doaj   +1 more source

INVESTIGATION OF MECHANICAL STRESSES IN THE DRIVE SHAFT OF MV VACUUM CIRCUIT BREAKER

Electrical engineering & Electromechanics, 2017
Introduction. In the last 10-15 years a dominant position in the market of medium voltage circuit breakers, vacuum circuit breakers have taken in which as an actuator mono- or bistable actuators with permanent magnets are used.
E. I. Baida, B. V. Klymenko
doaj   +1 more source

Online Monitoring Method for Opening and Closing Time of 10 kV Spring Energy Storage Circuit Breaker Based on Transient Electrical Signal Characteristic Point Marking and Self-Calibration

Energies
Among all circuit breaker faults, mechanical failures account for a considerable proportion, and online monitoring of their mechanical characteristics is of great practical significance.
Liting Weng, Jiangtao Xiao, Zhaochuang Zhang, Jingang Wang, Yuchuan Wen, Fan Zhang, Xingyu Zhang, Lingyi Ma, Pengcheng Zhao   +8 more
doaj   +1 more source

Simulation study on modeling of vacuum arc characteristics and anode temperature rise in low-frequency vacuum interruption [PDF]

AIP Advances
Low-frequency transmission technology has been widely used in medium- and long-distance electricity transmission scenarios such as offshore wind power transmission due to its advantages of low cost and strong ability to pool renewable energy.
Yanting Li, Junjie Li, Xiaolong Huang, Haibo Su, Qiang Zhang, Yanmin Li, Shenli Jia   +6 more
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INVESTIGATIONS OF THE DYNAMICS OF A BISTABLE ELECTROMAGNET WITH IMPROVED CHARACTERISTICS FOR MEDIUM VOLTAGE VACUUM CIRCUIT BREAKERS

Electrical engineering & Electromechanics, 2020
Introduction. Currently, for switching medium voltage circuits, vacuum circuit breakers are widely used, which have good arcing properties and high breaking capacity.
E. I. Baida, B. V. Klymenko, S. V. Vyrovets, Michael G. Pantelyat, M. Clemens   +4 more
doaj   +1 more source

Research status and prospect of vacuum degree detection methods for vacuum circuit breaker

Gong-kuang zidonghua, 2018
Research status of vacuum degree detection methods for vacuum circuit breaker was introduced including off-line detection methods such as observation method, power frequency withstand voltage method, pulsed magnetron discharge method and shield potential
WU Mengze, SONG Jiancheng, GAO Yunguang, CHEN Shushu   +3 more
doaj   +1 more source

Fault Interruption Scheme for HVDC System Using SiC-MESFET and VCB Based Hybrid Circuit Breaker

IEEE Access, 2021
As high voltage DC power system is gaining popularity, power electronic switching devices are becoming increasingly advanced to overcome problems of timely fault isolation.
Waheed A. Khan, Ali Raza, M. Rehan Usman, Shahzaib Hamid, Saif-Ur- Rehman, M. Arslan Usman, Christos Politis   +6 more
doaj   +1 more source

Prediction Method of Closing Action Time of Vehicle Pneumatic Main Circuit Breaker Based on PCA and GBDT Algorithm

World Electric Vehicle Journal
The switching action of the main circuit breaker of the train will produce switching overvoltage. In order to suppress the switching overvoltage, the phase selection control of the circuit breaker is required.
Ruoyu Li, Qingfeng Wang, Jianqiong Zhang, Xiangqiang Li   +3 more
doaj   +1 more source

Analysis of the Influence Factors of Post-Arc Dielectric Recovery on DC Vacuum Circuit Breaker

工程科学与技术, 2023
The DC vacuum circuit breaker adopts the artificial zero crossing commutation mode to interrupt the DC fault current, which is one of the control and protection methods that combines economy and reliability in DC system.
Xiaoming LIU, Hongfei SHI, Hai CHEN, Wentao JIANG, Yongjie ZHOU, Jiyan ZOU, Jun TIAN   +6 more
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