Results 11 to 20 of about 514 (110)
Applied Sciences, 2017 This paper analyses the transient characteristics and breaking performance of direct-current (DC) forced-interruption vacuum interrupters in 270 V power-supply systems.
Wenlei Huo +5 more
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Research on formation process of arc grounding over-voltage in mine power supply system
Gong-kuang zidonghua, 2018 For comprehensive research on formation process of arc grounding over-voltage in mine power supply system, a mine power supply system model and an intermittent arc grounding model were built by use of real time digital simulator, and over-voltages in ...
LIU Jucai +3 more
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Design of high-precision timing and protection system for neutral beam injector based on Linux RT [PDF]
AIP AdvancesThe high-power neutral beam injection system is a key auxiliary heating mechanism for achieving steady-state operation in the Experimental Advanced Superconducting Tokamak and the future Chinese Fusion Engineering Test Reactor.
Ao Liu +4 more
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Electrical Engineering in Japan, 2001 AbstractAt substations connected with transmission lines and cables, shunt reactors are sometimes installed to compensate the capacitive current of these lines and cables. It is known that re‐ignitions occur and high‐frequency currents flow during interruption of the shunt reactor currents by switches.
Shigemitsu Okabe +7 more
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Post-arc Current and Re-ignition after Many Interruptions by MCCB and the Endurance
IEEJ Transactions on Power and Energy, 2003 The purpose of this investigation is experimental research of many interruption performance for Molded Case Circuit Breaker (MCCB) currently used for the protection of a low voltage circuit. It is anticipated by interruption especially by high current many interruptions that the interruption performance will decrease.
Todo, Fumitaka +3 more
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IEEE AccessAiming at the problem of energy exchange in the arc channel of single-phase arc grounding in distribution networks, this paper establishes a three-dimensional, single-phase arc grounding field-circuit coupled mathematical model based on ...
Yan Li, Jianyuan Xu, Zhenxin Geng
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Construction of a short circuit frequency map to define GMAW-S parameters during WPSs development
Dyna, 2018 A short circuit frequency map was constructed for GMAW-S using a carbon steel filler metal class AWS ER70S-6 and 75%Ar-25%CO2 shielding gas. This kind of map is proposed as a tool for selecting GMAW-S currents and voltages that enable welds with higher ...
David Bernardo Hoyos-Arango +2 more
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Fuel Processing TechnologyThis study investigates an AC-driven rotating arc plasma reactor for ammonia decomposition using pure NH₃ at 10 NLPM. Nitrogen and N₂/H₂ (1:3 vol%) mixtures were employed as reference gases to elucidate the intrinsic discharge behavior of ammonia, while ...
Ju Won Kim +4 more
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PlasmaPlasma arcs generated by lightning strikes are prone to tripping distribution lines, especially 10 kV lines. To reduce the lightning-induced tripping rate of 10 kV distribution lines and ensure the safe operation of power systems, this paper proposes a ...
Ping Huang +6 more
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International Journal of Electrical Power & Energy SystemsAs global temperatures rise, the frequency of lightning increases, making lightning one of the principal threats to power-system security. Field incidents indicate that, within the automatic reclosing time window, multiple-stroke lightning can exhibit ...
Hongchun Shu +7 more
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