Results 41 to 50 of about 494,648 (339)

Research on DC component decay time constant of 1000 kV AC filter circuit breakers in UHV converter station

open access: yesThe 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

Study on the Influence of Reignition on Electrical Life Distribution of Low-Voltage Circuit Breakers

open access: yesIEEE Access, 2021
This study analyzes the recovery voltage changes when a low-voltage circuit breaker opens with load and short-circuit faults and explains the reignition types under different recovery voltages.
Zhengjun Liu   +2 more
doaj   +1 more source

Fast synchronization 3R burst-mode receivers for passive optical networks [PDF]

open access: yes, 2014
This paper gives a tutorial overview on high speed burst-mode receiver (BM-RX) requirements, specific for time division multiplexing passive optical networks, and design issues of such BM-RXs as well as their advanced design techniques. It focuses on how
Bauwelinck, Johan   +8 more
core   +2 more sources

Effect of duration of the pause single-phase auto-reclosing on electro-power transmission capacitance

open access: yesE3S Web of Conferences, 2017
This paper discusses the problem associated with accidents in the aerial line (AL) ultra-high voltage (UHV) due to its big length. In lines with a voltage of 500-1150 kV the overwhelming proportion of trips (98%) is caused by single-phase short circuit ...
Krasil'nikova Tatyana, Jononaev Saiyod
doaj   +1 more source

Contributions of single-phase rooftop PVs on short circuits faults in residential feeders

open access: yes2014 Australasian Universities Power Engineering Conference (AUPEC), 2014
Sensitivity analysis results are presented to investigate the presence of single-phase rooftop Photovoltaic Cells (PV) in low voltage residential feeders, during short circuits in the overhead lines. The PV rating and location in the feeder and the fault location are considered as the variables of the sensitivity analysis.
Hadi Hosseinian Yengejeh   +2 more
openaire   +2 more sources

A Sensitivity Method for Assessing the Impact of Generator/Transformer Impedance upon Power System Fault Behaviour [PDF]

open access: yes, 2002
An analytical method is presented for determining the potential impact that the connection of a single new generator may have upon the performance of a transmission system under balanced three-phase fault conditions.
McDonald, J. D. F., Saha, Tapan K.
core   +1 more source

Short circuit study of fixed speed wind turbines with STATCOM in distribution networks [PDF]

open access: yes, 2015
The increased penetration of wind farm in distribution networks has brought changes in the performance of the whole system. Such disadvantages when connecting one of these distributed generation sources is reduced voltage and power stability of the AC ...
Darwish, M, Naain, MM, Zobaa, AF
core   +1 more source

Analysis of Voltage Sag Due to Short Circuit on the Sub System in Central Sumatera

open access: yesInternational Journal of Electrical, Energy and Power System Engineering, 2018
Power quality is closely related to electrical energy which is directly related to voltage and current interference. Electrical equipment used daily requires good power quality. The thing that affects the quality of the power is the voltage dip. Based on
Hamzah Eteruddin   +2 more
doaj   +1 more source

3D Transient Electromagnetic-Temperature Field Analysis of the Loss and Heat of the Damper Bars of a Large Tubular Hydro-Generator During Short Circuit Faults

open access: yesIEEE Access, 2020
This paper studies a real 36-MW large tubular hydro-generator to solve the transient variation problem of the loss and heat of damper bars during short circuit faults in tubular hydro-generators.
Qing-Ling Hu   +7 more
doaj   +1 more source

Perfect quantum error correction coding in 24 laser pulses [PDF]

open access: yes, 1996
An efficient coding circuit is given for the perfect quantum error correction of a single qubit against arbitrary 1-qubit errors within a 5 qubit code.
A. Berthiaume   +18 more
core   +2 more sources

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