Results 41 to 50 of about 501,948 (340)

Impact of hybrid renewable energy systems on short circuit levels in distribution networks [PDF]

open access: yes, 2014
The effects of the distributed generation can be classified as environmental, technical and economical effects. It is playing a very vital role for improving the voltage profiles in electrical power systems.
Afifi, SN, Darwish, MK
core   +1 more source

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

Short-circuit and load operation of single-phase transformer at low frequencies

open access: yesPRZEGLĄD ELEKTROTECHNICZNY, 2019
© 2019, Wydawnictwo SIGMA-NOT. All rights reserved. The aim of this paper is to present experimental results on the short-circuit and load test of the single-phase transformer at low frequencies. The paper gives information on PC based measurement setup and presents the results of measurement of primary and secondary voltages and currents and electric ...
Koprivica, Branko   +2 more
openaire   +2 more sources

Topological phases with generalized global symmetries [PDF]

open access: yes, 2016
We present simple lattice realizations of symmetry-protected topological (SPT) phases with $q$-form global symmetries where charged excitations have $q$ spatial dimensions.
Yoshida, Beni
core   +2 more sources

Evaluating Distributed Time-Varying Generation Through a Multiobjective Index [PDF]

open access: yes, 2008
In the last decade, distributed generation, with its various technologies, has increased its presence in the energy mix presenting distribution networks with challenges in terms of evaluating the technical impacts that require a wide range of network ...
Harrison, Gareth   +2 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

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

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

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