Results 271 to 280 of about 332,485 (313)

Short circuit analysis of IEEE test feeders

PES T&D 2012, 2012
In 1991 a paper giving the data for four distribution system test feeders was published [1]. The purpose of the test feeders was to give software developers a common set of data that could be used to verify the correctness of their power flow analysis programs.
W. H. Kersting, Greg Shirek
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A Short-Circuit Testing Laboratory in an Educational Institution

IEEE Transactions on Education, 1964
The establishment of a short-circuit testing laboratory in an educational institution is quite an innovation, particularly in an area of the world where the conventional high power switchgear testing laboratory is non-existent. Affording postgraduate training and research in arc phenomena and the scientific development of arc extinction devices, this ...
P. O. Langguth, M. A. Pandit
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A-C and D-C short-circuit tests on aircraft cable

Electrical Engineering, 1944
Higher-voltage d-c and 400-cycle a-c electric systems are being developed for large aircraft with increased electrical load in order to obtain lower conductor weights than would be required with the present 28.5-volt system. In view of the apparent freedom from sustained faults in low-voltage d-c systems despite damage from gunfire, the use of ...
J. C. Cunningham, W. M. Davidson
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Short-circuit tests on current-limiting fuses: modelling of the test circuit

IEE Proceedings C Generation, Transmission and Distribution, 1993
In the standard procedures for high-power short-circuit testing of current-limiting fuses, the test circuit is conventionally characterised by the RMS test voltage, prospective current, frequency, closing angle, and power factor. From these parameters a constant RL equivalent circuit can be derived, which has been widely used in the modelling of fuse ...
R. Wilkins, T. Saengsuwan, L. O'Shields
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Equivalent load test for induction machines-the forward short circuit test

IEEE Transactions on Energy Conversion, 1999
Often full load testing of induction machines with outputs greater than 1 MW present difficulties when attempting to verify the rated performance, especially the temperature rise. This is because of limitations imposed by the manufacturer's power supplies and load equipment.
D.H. Plevin, C.N. Glew, J.H. Dymond
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Short Circuit Tests on a Coreless HTS Synchronous Generator

IEEE Transactions on Applied Superconductivity, 2013
A series of short circuit tests have been performed on a coreless (air-core) high-temperature superconducting (HTS) rotor, installed inside a conventional stator. The machine was driven like a generator using an 11 kW drive motor, to a maximum frequency of 20 Hz.
W. O. S. Bailey, Y. Yang, C. Beduz, K. F. Goddard   +3 more
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An On-Line Identification Method for Short-Circuit Impedance of Transformer Winding Based on Sudden Short Circuit Test

2019
This paper comes up with an online identification method for short-circuit impedance of transformer winding based on sudden short circuit test, which has realized the accurate calculation of parameters of short circuit impedance by collecting voltage and current from the sudden short circuit test, establishes related simulation model, and proves the ...
Yan Wu, Lingyun Gu, Xue Zhang, Jinyu Wang   +3 more
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Short-circuit test on power transformers with pressure measurement

PowerTech Budapest 99. Abstract Records. (Cat. No.99EX376), 2003
Summary form only given. The international standard IEC 60076-5 prescribes short-circuit tests to verify the dynamic ability of power transformers to withstand short-circuits. According to the standard, before and after each short-circuit shot, the short-circuit reactance of the transformer shall be measured.
L. Toth, T. Toth
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Stand for testing one-second short-circuit currents

2018 Innovative Materials and Technologies in Electrical Engineering (i-MITEL), 2018
The paper presents a stand for testing one-second short-circuit currents of medium voltage power cables. The operation of the stand was illustrated with the results of short-circuit currents of Al cables with cross-sections (main wire/return wire) of 70/36, 120/40 and 240/48. Time changes of short-circuit current values recorded during the test and its
Ryszard Kacprzyk, Grzegorz Wisniewski, Stanislaw Szkolka, Jan Ziaja   +3 more
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Short- circuit tests of circuit breakers

2015
This paper deals with short-circuit tests of low voltage electrical devices. In the first part of this paper, there are described basic types of short- circuit tests and their principles. Direct and indirect (synthetic) tests with more details are described in the second part. Each test and principles are explained separately.
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