Results 231 to 240 of about 4,230,779 (288)

Short-Circuit Currents of Synchronous Machines

Transactions of the American Institute of Electrical Engineers, 1925
The importance of short-circuit forces in large alternators has warranted an investigation of them. The first step in this investigation, which is discussed in this paper, is the calculation of the short-circuit currents that produce them. The method of solution used is that of the assumption of zero resistance and constant flux linkages which has ...
exaly   +2 more sources

Short Circuit Current of Induction Generators

2007 IEEE International Symposium on Circuits and Systems (ISCAS), 2007
This paper addresses the effect of distributed generators, specifically squirrel cage induction generators, on 3-Phi bolted short-circuit fault currents to make sure that they do not interfere with the interruption capability of circuit breakers. Results of a laboratory experiment, and simulation results for 16 different induction machines, including ...
T. Sulawa, Zivan Zabar, Dariusz Czarkowski, L. Birenbaum, S. Lee, Y. TenAmi   +5 more
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Improved MPPT short-circuit current method by a fuzzy short-circuit current estimator

2011 IEEE Energy Conversion Congress and Exposition, 2011
Several Maximum Power Point Tracking MPPT methods have been proposed looking for more efficient Photovoltaic (PV) system. Some of them are simple but imply low efficiency compared with more sophisticated method. The short-circuit current is a simple method to achieve the maximum power point based on the fact that the current at the maximum power point ...
Nelson Diaz, Adriana Luna, Oscar Duarte
openaire   +1 more source

Short circuit current calculations

2018 19th International Scientific Conference on Electric Power Engineering (EPE), 2018
Paper deals with short circuit calculations. It compares results of three different tools for short circuit currents calculation.
Zsolt Conka, Karel Maslo, Branislav Batora   +2 more
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Short circuit TSO currents

Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1981, 1981
Short circuit thermally stimulated discharge [TSO) has been used as a technique to study trapping characteristics of a material(1). We have in mind experiments in which the sample is initially poled under constant applied voltage V 0 through an ohmic contact, until a steady state current i S is reached.
M.T. Figueiredo, G.F. Leal Ferreira
openaire   +1 more source

"Characteristic" Currents and Countercurrents. For short-Circuits Diagnosis

2020 IEEE Industry Applications Society Annual Meeting, 2020
Many sophisticated software are available to analyse the design of electrical power systems. Therefore, it becomes relevant to know rules of the thumb to be able to diagnose in an elementary and intuitive way the computerized results.For the short circuit analysis, in most practical cases, it is sufficient to adopt simplified and standard based ...
openaire   +2 more sources

Short circuits of alternating-current generators

Journal of the A.I.E.E., 1924
In this paper, the author presents a physical conception and simple non-mathematical analysis of the short-circuit phenomena of alternating-current generators. Formulas are developed for the maximum instantaneous values of the armature and field short-circuit currents delivered by both single and polyphase generators, which are equipped with and ...
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Short-circuit current of induction motors and generators

Journal of the American Institute of Electrical Engineers, 1921
There has been a rather prevailing opinion that a sudden short circuit of an induction generator would not cause a serious initial rise in current such as occurs in synchronous generators. This has led to the proposal of the use of such machines as a partial solution of the short-circuit problem on a-c. systems.
R. E. Doherty, E. T. Williamson
openaire   +1 more source