Results 251 to 260 of about 422,398 (302)
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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
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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
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Short circuit current calculations
2018 19th International Scientific Conference on Electric Power Engineering (EPE), 2018Paper deals with short circuit calculations. It compares results of three different tools for short circuit currents calculation.
Zsolt Conka +2 more
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"Characteristic" Currents and Countercurrents. For short-Circuits Diagnosis
2020 IEEE Industry Applications Society Annual Meeting, 2020Many 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 ...
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Short circuits of alternating-current generators
Journal of the A.I.E.E., 1924In 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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A Comprehensive Analysis of Short-Circuit Current Behavior in PMSM Interturn Short-Circuit Faults
IEEE Transactions on Power Electronics, 2018 This paper presents a detailed analysis of short-circuit current behavior during interturn short-circuit faults in permanent magnet synchronous machines (PMSMs) by considering the short-circuit contact resistance.
Yuan Qi +2 more
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Short-circuit current calculations for DC systems
Proceedings of 1994 IEEE Industry Applications Society Annual Meeting, 1996The aim of the paper is to describe the methods contained in the International Electrotechnical Commission (IEC) draft standard "Calculation of short-circuit currents in DC auxiliary installations in power plants and substations", and to test them using the dynamic computer simulation.
BERIZZI, ALBERTO +3 more
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Short circuit current in tight and leaky epithelia
Biochimica et Biophysica Acta (BBA) - Biomembranes, 1978The effect of short circuit current on the unidirectional fluxes of ions transported across tight and leaky epithelia was investigated. It was found that short circuiting of the frog gastric mucosa (classified as a tight epithelium) caused a decease of the passive JClms and a significant increase of the net Cl- secretion. However, no significant change
M A, Dinno, K C, Huang
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External impedance vs. short-circuit currents
Electrical Engineering, 1934Effects of external impedance on short-circuit currents in synchronous machines and in networks are discussed in this article. The material presented is not claimed to be new; its chief value lies in the confirmation of calculations by test results, which tends to increase confidence in formulas previously developed.
B. L. Robertson, T. A. Rogers
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Short-circuit current of induction motors and generators
Journal of the American Institute of Electrical Engineers, 1921There 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
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Short-Circuit Currents of Synchronous Machines
Transactions of the American Institute of Electrical Engineers, 1925The 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 ...
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