Results 11 to 20 of about 4,230,779 (288)

Currents in the overhead transmission line lighting wire in case of single-phase short circuit

open access: yesE3S Web of Conferences, 2018
The algorithms for currents induced in a grounded lightning wire (LW) with single-phase short circuit (SC) calculation are considered. It is shown that the method of short-circuit current and current in LW simultaneous determination gives more correct ...
Zimin Kirill   +3 more
doaj   +3 more sources

MICROPROCESSOR-BASED PROTECTION DEVICE ELECTRIC MOTORS AGAINST SHORT CIRCUIT CURRENTS

open access: yesNauka ta progres transportu, 2010
The microprocessor device of protection of electric chains of electric motors from short circuit currents, in which switching-off of a short circuit current is carried out before it achieves a shock value, is presented.
D. V. Ustymenko
doaj   +3 more sources

THE RATE OF CURRENT CHANGE DURING A SHORT CIRCUIT IN THE POWER CIRCUITS OF THE ELECTRIC ROLLING STOCK WITH REGARD TO EDDY CURRENTS

open access: yesNauka ta progres transportu, 2010
In the article the issue of influence of vortical currents on rate of change of short circuit current is considered, a mathematical model for the calculation of short circuit currents in the traction mode in the power circuits of DC electric rolling ...
L. V. Dubinets   +2 more
doaj   +1 more source

Load-Flow-Based Calculation of Initial Short-Circuit Currents for Converter-Based Power System

open access: yesEnergies
Short-circuit current is a key characteristic value for synchronous generator-based power systems. It is employed for different applications during the planning and operation phases.
Deepak Deepak   +4 more
doaj   +3 more sources

Impact of hybrid distributed generation allocation on short circuit currents [PDF]

open access: yes, 2017
This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University LondonThe rapid development in renewable generation technologies and flexible distribution networks requires current infrastructure to be modified and ...
Afifi, Sara Nader
core   +5 more sources

Short-circuit currents in turbogenerators

open access: yes, 1979
The thesis is concerned with an investigation of several aspects of the short-circuit currents which arise in turbogenerators. Of particular interest is the phenomenon that one or more of the armature currents may not pass through zero for a considerable
Lek-Suan Lim (7202228)
core   +3 more sources

Analytical Optimal Currents for Multiphase PMSMs Under Fault Conditions and Saturation [PDF]

open access: yes, 2014
An original analytical expression is presented in this paper to obtain optimal currents minimizing the copper losses of a multi-phase Permanent Magnet Synchronous Motor (PMSM) under fault conditions.
NGUYEN, Ngac Ky   +8 more
core   +1 more source

Transmission network expansion planning with embedded constraints of short circuit currents and N-1 security

open access: yesJournal of Modern Power Systems and Clean Energy, 2015
An approach of transmission network expansion planning with embedded constraints of short circuit currents and N-1 security is proposed in this paper. The problem brought on by the strong nonlinearity property of short circuit currents is solved with a ...
Jianxiao Wang   +3 more
doaj   +1 more source

Operational control and protection implications of fault current limitation in distribution networks [PDF]

open access: yes, 2009
Rising short-circuit fault current levels is one of the problems associated with the increased presence of distributed generation (DG) in electrical networks.
Blair, S.M.   +3 more
core   +3 more sources

Improved equation to describe the induction motor currents during nearby three‐phase short‐circuits

open access: yesIET Electric Power Applications, 2023
This article shows an improved equation to describe the induction motor currents during a three‐phase short‐circuit near to motor terminals. The proposed equation considers three details which are not in the equation shown in the IEEE Std.
Elmer Sorrentino, Andres Vera
doaj   +1 more source

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