Results 31 to 40 of about 1,294,113 (288)
CIRED - Open Access Proceedings Journal, 2017 In the last years the progressive increase of distributed and non-programmable energy sources arise the interest in the use of DC for medium-voltage distribution systems. The study focuses on the design considerations of the apparatus required to support the management and protection of these applications.
Lars Liljestrand +4 more
openaire +1 more source
Topology and control of a novel hybrid HVDC circuit breaker with self-powered capability
Energy Reports, 2022 Power supply for IGBT drive circuit of HVDC circuit breaker is a great challenge in practical engineering. At present, most of the HVDC circuit breakers rely on external power sources. This paper proposes a self-powered hybrid HVDC circuit breaker.
Huangqing Xiao +4 more
doaj +1 more source
DC / DC converters as DC circuit-breakers in HVDC networks operation [PDF]
2014 16th European Conference on Power Electronics and Applications, 2014 This paper presents the modeling and control of a DC/DC bidirectional converter suitable for medium voltage and power applications in Multi-Terminals HVDC (MT-HVDC) grids. Moreover its use as DC circuit-breaker is described. This is a new concept, against the contemporary studies of DC breakers, which could help for the implementation of MT-HVDC ...
Jiménez Carrizosa, Miguel +6 more
openaire +2 more sources
DC Circuit Breaker with an Alternating Commutating Circuit [PDF]
, 2023 The present disclosure provides a DC mechanical circuit breaker that can utilize two switches, one of which can generate zero-crossing with an alternate oscillatory circuit for the other one, which can be a conventional zero-crossing-based AC breaker and
Mehraeen, Shahab, Sen, Sudipta
core
Optical fiber imaging for high speed plasma motion diagnostics: applied to low voltage circuit breakers [PDF]
, 2010 An integrated portable measurement system is described for the study of high speed and high temperature unsteady plasma flows such as those found in the vicinity of high current switching arcs.
Tribulato, G. +9 more
core +1 more source
Operation Characteristics for the Superconducting Arc-Induction Type DC Circuit Breaker
Energies, 2020 The multi-terminal direct current network is expected to commercialize while carrying out projects related to DC power systems worldwide. Accordingly, it is necessary to develop a DC circuit breaker required for the DC power system.
Sangyong Park, Hyosang Choi
doaj +1 more source
Design of mine breaker with self-diagnosis function
Meikuang Anquan, 2023 Aim at the problem that a coal mine safety monitoring system cannot accurately sense the power-off state of a controlled object due to the fact that the output wire of a mine-used contact detection feed breaker is wrong, this paper introduces a self ...
HUANG Chun
doaj +1 more source
Investigations on the safe stroke of mechanical HVDC vacuum circuit breaker
The Journal of Engineering, 2019 Here, a DC vacuum arc interruption test based on the hybrid high-speed actuator and the method of commutation is carried out in the synthetic loop system. The safe stroke is one of the basic breaking parameters.
Ning Xia +5 more
doaj +1 more source
Anti-strong Magnetic Interference Technology of Intelligent Miniature Circuit Breaker
Zhongguo dianli, 2020 Aiming at the problem that the intelligent micro-circuit breaker is prone to misoperation and miss trip under strong magnetic interference, the intelligent micro-circuit breaker control system, DC motor, switching power supply and other related modules ...
Dezhi XIONG +5 more
doaj +1 more source
, 2021 Faults in DC systems are difficult to interrupt compared to their AC counterparts due to absence of natural current-zero (CZ) crossing in DC current. This puts forward the need of enhanced arc chambers inside the circuit-breaker to cope with DC arc.
Virdag, Muhammad-Ali-Khan
core +1 more source