Results 11 to 20 of about 154,492 (354)

High anti-arc erosion performance of the Al2O3 reinforced Cu@W composites for high voltage circuit-breaker contacts

Materials Research Express, 2022
High voltage circuit-breakers with superior performance are demanded as the transmission distance extends and voltage rises, which are often subject to high current and voltage surges.
Yi Ding, Jin-feng Geng, Jun Li Du, S. H. Wei, Zhi-xiang Zhu, Yu Han, D. Xia, Wei Xie, Xin Chen, Feiyue Ma   +9 more
semanticscholar   +1 more source

Principal component analysis (PCA) based sparrow search algorithm (SSA) for optimal learning vector quantized (LVQ) neural network for mechanical fault diagnosis of high voltage circuit breakers

Energy Reports, 2023
An essential piece of equipment for the protection and management of the electricity grid is a high voltage(HV) circuit breaker. The reliability and stability of the electricity grid are directly affected by the condition of operation of a high voltage ...
Kuan Zhang, Zehua Chen, Liyuan Yang, Yongchun Liang   +3 more
doaj   +1 more source

Parameters design of voltage sharing components for the series multi‐break mechanical switch

IET Science, Measurement & Technology, 2022
Series multi‐break mechanical switch is one of the critical components of high‐voltage hybrid DC circuit breakers. However, due to the existence of distributed capacitance, the voltage distribution between the breaks is not balanced.
Daochun Huang, Huaqing Wang, Wanlin Quan, Xin Chen, Mingjing Shuang, Huipeng Li   +5 more
doaj   +1 more source

Performance Evaluation and Limitations of Overvoltage Suppression Circuits for Low- and Medium-Voltage DC Solid-State Breakers

IEEE Open Journal of Power Electronics, 2021
This paper presents a design and performance evaluation of three different overvoltage suppression circuits employed in a solid-state circuit breaker for medium- to high-power and low- to medium-voltage DC grids.
Andreas Giannakis, Dimosthenis Peftitsis
doaj   +1 more source

Real-Time Monitoring of High Voltage Switch Based on CAD

Advances in Multimedia, 2022
In the process of online real-time monitoring of intelligent digital filter high-voltage switchgear, the mechanical state diagnosis of high-voltage circuit breaker is based on fully understanding the mechanical characteristics of each component of ...
Long Di, Yong Xiao, Feng Hu, Yujian Liang, Jianmin Tan, Yimin You   +5 more
doaj   +1 more source

An IEGT Model for Analyzing the High Current Turn-off Characteristics in DC Circuit Breaker Applications

IEEE Access, 2020
The direct current (DC) circuit breaker based on semiconductor power devices is one of the critical components in multiterminal flexible high voltage DC transmission technology.
Xin Liu, Litong Wang, Guishu Liang, Lei Qi   +3 more
doaj   +1 more source

High Voltage Circuit Breaker Vibration Signature Indices Evaluation for Condition Assessment

B&H Electrical Engineering, 2021
The importance of the high voltage circuit breaker for the power system’s safe and reliable operation is paramount. This research aims to analyse and provide the most significant high voltage circuit breaker health state indices based on the non-invasive
Kerim Obarcanin, Dzenita Skulj, Bakir Lacevic   +2 more
semanticscholar   +1 more source

New two chamber transfer switch for 6500 A commutation current

Global Energy Interconnection, 2018
HVDC transfer switches are used in different locations in electrode lines of HVDC transmission systems for their reconfigurations. They have to carry and commutate currents to the overload currents of HVDC transmission systems, which increased to 6,400A ...
Lutz-Rüdiger Jänicke, Jörg Teichmann, Shibani Bose, Weidong Han, Xiaoming Wang   +4 more
doaj   +1 more source

Research on circuit breaker failure protection and the secondary accelerated fault isolation scheme of VSC-HVDC grids

Frontiers in Energy Research, 2023
When the direct current circuit breaker (DCCB) fails to operate, the fault range will further expand, endangering the safe operation of the power gird.
Andi Li, Botong Li, Weijie Wen, Bin Li, Xiaolong Chen   +4 more
doaj   +1 more source

Influence of grid configuration on current conducting behaviour in PV installations [PDF]

, 2011
On the roof of an industrial site a 385 kWp PhotoVoltaic installation is operational. When production of this system reaches 60% of the installed power, the circuit breaker trips.
Debruyne, Colin, Desmet, Jan, Vandevelde, Lieven, Verhelst, Bart   +3 more
core   +2 more sources