Results 11 to 20 of about 39,446 (240)
Journal of Harbin University of Science and Technology, 2023 Asymmetric short-circuit fault breaking test T100a is an important test item of High-voltage AC Circuit-breakers. In non-effectively earthed neutral system the first pole to clear factor is 1.5 and the transient recovery voltage (TRV) has two or four ...
HE Ninghui +5 more
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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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Providing decision support for the condition-based maintenance of circuit breakers through data mining of trip coil current signatures [PDF]
, 2007 The focus of this paper centers on the condition assessment of 11kV-33kV distribution circuit breakers from the analysis of their trip coil current signatures captured using an innovative condition monitoring technology developed by others.
Campbell, A. +4 more
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Interlink hybrid DC circuit breaker [PDF]
, 2018 —To protect HVDC grids from DC faults, the concept of a hybrid DC circuit breaker is widely accepted due to its low conduction losses and fast interruption speed.
Li, Chuanyue, Liang, Jun, Wang, Sheng
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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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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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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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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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Circuit breaker prognostics using SF6 data [PDF]
, 2011 Control decisions within future energy networks may take account of the health and condition of network assets, pushing condition monitoring within the smart grid remit.
Catterson, Victoria +3 more
core +1 more source