Results 11 to 20 of about 1,832 (200)
Hybrid Z-Source Circuit Breaker with Thomson Coil for MVDC
Energies, 2023 Hybrid circuit breakers are the most promising circuit breakers among DC circuit breakers. Conventional hybrid circuit breakers complete fault current isolation by converting current to IGBT when fault current occurs.
Hyun-Seung Lee +3 more
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Circuit breakers for addiction [PDF]
Internal Medicine Journal, 2007 AbstractThe phenomenon of addiction is complex, although its expression clinically is relatively straightforward. There is a series of neurophysiological changes that mediate changes in the mesolimbic and mesocortical systems which in turn lead to disturbances in reward mechanisms.
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Parameters of DC high-speed circuit-breakers
MATEC Web of Conferences, 2018 DC high-speed circuit-breakers (HSCB) are the basic protection to cut off short-circuit and overload currents. People’s and railway infrastructure devices’ safety depend on their reliability and parameters.
Rojek Artur
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The Journal of Engineering, 2019 In hierarchically connected UHV DC projects, the 1000 kV AC filter sub-bank in converter station is provided with two 500 kV circuit breakers. To determine the test DC component decay time constant when breakers break short-circuit current, relevant DC ...
Li Zhenqiang +3 more
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Energies, 2020 Vacuum circuit breakers are increasingly used as switching apparatus in electric power systems. The vacuum circuit breakers (VCBs) have very good operating properties. VCBs are characterized by specific physical phenomena that affect overvoltage exposure
Marek Florkowski +3 more
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Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2021 The paper deals with the problem of increasing the efficiency of the functioning of electric networks up to 1 kV, namely, the possibility of increasing the sensitivity of protections in networks up to 1 kV, which helps to reduce the protection response ...
A. Yu. Kapustsinski +1 more
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A Review on Thomson Coil Actuators in Fast Mechanical Switching
Actuators, 2022 With the rapid development of DC power systems and the increasing demand for DC circuit breakers, electromagnetic repulsive drives-based Thomson coil actuators (TCA) are widely investigated to provide the high-speed actuating required for ultra-fast ...
Mohmmad Al-Dweikat +5 more
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HVDC Circuit Breakers–A Review [PDF]
IEEE Access, 2020 HVDC circuit breakers are of increasing importance, as multi-terminal high voltage DC (HVDC) transmission becomes a commercial reality. Multiple HVDC breaker technologies have been developed, and are starting to appear as proof-of-concept installations on real networks. Information about them is however distributed widely in the literature.
Mike Barnes +5 more
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Molded Case Circuit Breakers - Some Holes in the Electrical Safety Net
IEEE Access, 2018 Test results presented in this paper demonstrate that some brands of residential molded case circuit breakers do not operate properly within the limits specified by the applicable standard. The samples tested are both used, from homes, and new, purchased
Jesse Aronstein, David W. Carrier
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A Review on Hybrid Circuit Breakers for DC Applications
IEEE Open Journal of the Industrial Electronics Society, 2023 Direct current (dc) power system protection presents a major challenge due to its unique characteristics, namely the absence of natural zero current crossing points.
Ana Rafaela Figueiredo Bento +2 more
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