Results 21 to 30 of about 51,958 (298)

Design of ± 535 kV hybrid high voltage direct current (HVDC) circuit breaker

open access: yesIET Generation, Transmission & Distribution, 2022
This paper proposes a ± 535 kV hybrid high voltage direct current (HVDC) circuit breaker. In this paper, the interruption processes of the main branch, transferring branch, and MOV (metal oxide varistors) branch are studied by PSCAD/EMTDC computer ...
Chenyang Liu   +4 more
doaj   +1 more source

Fast Fault Detection and Active Isolation of Bidirectional Z-Source Circuit Breaker with Mechanical Switch

open access: yesEnergies, 2022
In this paper, a new design is provided so that the Z-source circuit breaker with a mechanical switch operates quickly at a low-impedance fault. When the fault occurs, the Z-source circuit breaker uses an impedance network to generate forced current zero
Hyeon-Seung Lee   +3 more
doaj   +1 more source

Fault diagnosis of circuit breaker based on improved dynamic time warping algorithm

open access: yesGong-kuang zidonghua, 2016
In order to accurately diagnose the fault of circuit breaker according to its condition monitoring data, a fault diagnosis method of circuit breaker based on improved dynamic time warping algorithm was proposed.
JIANG Zhihao, YU Qun, DONG Li
doaj   +1 more source

The Modeling of the LC Divergence Oscillation Circuit of a Superconducting DC Circuit Breaker Using PSCAD/EMTDC

open access: yesEnergies, 2022
We proposed a superconducting DC circuit breaker that can reliably cut off the fault currents in preparation for the DC system. It consists of a superconducting element and a mechanical DC circuit breaker.
Sang-Yong Park   +3 more
doaj   +1 more source

Key stress extraction and equivalent test method for hybrid DC circuit breaker

open access: yesGlobal Energy Interconnection, 2018
Firstly, relevant stress properties of millisecond level breaking process and microsecond level commutation process of hybrid HVDC circuit breaker are studied in detail on the basis of the analysis for the application environment and topological ...
Chong Gao   +4 more
doaj   +1 more source

Influence of grid configuration on current conducting behaviour in PV installations [PDF]

open access: yes, 2011
On the roof of an industrial site a 385 kWp PhotoVoltaic installation is operational. When production of this system reaches 60% of the installed power, the circuit breaker trips.
Debruyne, Colin   +3 more
core   +2 more sources

Multimedia congestion control: circuit breakers for unicast RTP sessions [PDF]

open access: yes, 2017
The Real-time Transport Protocol (RTP) is widely used in telephony, video conferencing, and telepresence applications. Such applications are often run on best-effort UDP/IP networks.
Perkins, C., Singh, V.
core   +2 more sources

HVDC Circuit Breakers–A Review [PDF]

open access: yesIEEE 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
openaire   +1 more source

A short circuit current evaluation method based on the branch fault current of the circuit breaker

open access: yesZhejiang dianli, 2023
With the rapid load growth and the increasing density of power grids, the overrun short-circuit current becomes increasingly aggravated. To accurately assess the short-circuit current level of the system is crucial to ensure the safe and stable operation
DONG Wei   +5 more
doaj   +1 more source

Arcless opening of direct current circuits in technical systems [PDF]

open access: yes, 2017
Operation of the proposed DC circuit breaker consists in the fact that the closing of the thyristor in the DC power circuit with an inductive load results from opening the auxiliary circuit with a current value several fold less than the load current ...
Novikov, Sergey Avtonomovich   +2 more
core   +1 more source

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