Results 21 to 30 of about 39,622 (243)
Innovative X-ray control technology of high-voltage circuit breaker technical condition [PDF]
E3S Web of Conferences, 2020 The paper presents the results of practical application of an instrumentation and analytical system (IAS) for X-ray control of minimum oil and SF6 circuit breakers. The capabilities of IAS are described and the technology for its implementation is given.
Darian Leonid +2 more
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Transient Characteristics Analysis of 500kV Parallel Circuit Breaker Based on Highly Coupled Split Reactor [PDF]
E3S Web of Conferences, 2019 With the continuous expansion of power system capacity, parallel high-voltage circuit breakers with a Highly Coupled Split Reactor (HCSR) have a potential application for limitation of high short-circuit current. However, as the parallel circuit breakers
Xiang Changyuan +3 more
doaj +1 more source
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
doaj +1 more source
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
core +1 more source
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
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source