Results 41 to 50 of about 20,648 (304)
Research status and prospect of fault diagnosis technology for mine high voltage circuit breaker
Meikuang AnquanThis paper introduces the basic situation of mechanical fault diagnosis technology for mining high voltage circuit breaker. According to the basic process of fault diagnosis, the current research status and main shortcomings of mechanical fault diagnosis
Ali HUI, Qi QIN, Rui LI, Xiang RONG
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Automatika, 2019 During the operation process of the high-voltage circuit breaker, the changes of vibration signals reflect the machinery states of the circuit breaker. The extraction of the vibration signal feature will directly influence the accuracy and practicability
Mingliang Liu +3 more
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Research on a Novel DC Circuit Breaker Based on Artificial Current Zero-Crossing
IEEE Access, 2020 Modular multilevel converter-based high voltage direct-current (MMC-HVDC) transmission has developed rapidly because of its flexibility, reliability and efficiency.
Shangfu Teng, Zhifeng Zhang, Liye Xiao
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A database ATP simulated waveforms of shunt reactor switching cases with vacuum breakers on motor circuits [PDF]
, 2009 This paper presents a database ATP (Alternative Transient Program) simulated waveforms for shunt reactor switching cases with vacuum breakers in motor circuits following interruption of the starting current.
Kam, Shui-cheong, Ledwich, Gerard
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Digital testing of high-voltage circuit breakers
IEEE Computer Applications in Power, 2000 The functionality of high-voltage circuit breakers is tested in high-power laboratories. Due to the necessary power and the physical size of the equipment, testing is rather expensive and time consuming. The steps followed so far by the authors in order to enable the digital testing of HV circuit breakers are described in this paper.
Schavemaker, P.H. (author) +3 more
openaire +4 more sources
Advanced Engineering Materials, EarlyView.Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin +5 more
wiley +1 more source
D-Distance Technique to Determine Failure Probability of Power Circuit Breaker
Energies, 2023 In this paper, a new D-distance factor is proposed to determine the failure probability and to prioritize maintenance actions of power circuit breakers in high-voltage substations.
Suphon Kumpalavalee +3 more
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Waveform-level time-domain simulation comparison study of three shipboard power system architectures [PDF]
, 2012 Detailed waveform-level modeling and simulation of three alternative shipboard power system architectures is presented herein. The three system architectures are based on conventional 60Hz medium-voltage ac (MVAC), higherfrequency 240Hz medium-voltage ac
Crider, J. +9 more
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Advanced Functional Materials, EarlyView.In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund +6 more
wiley +1 more source
CFD Simulation of Transonic Flow in High-Voltage Circuit Breaker
International Journal of Chemical Engineering, 2012 A high-voltage circuit breaker is an indispensable piece of equipment in the electric transmission and distribution systems. Transonic flow typically occurs inside breaking chamber during the current interruption, which determines the insulating ...
Xiangyang Ye, Mahesh Dhotre
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