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Synchronous Generator Short-Circuit and System Faults
1975Although the majority of the faults occurring in practice on a power system are unsymmetrical between the phases, the symmetrical fault is important because, although rarer, it is more severe. It is, moreover, a simpler condition to analyse, and therefore forms a suitable starting-point for a study of fault conditions.
Bernard Adkins, Ronald G. Harley
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Analysis of Fault Recorder Data for Short-Circuit Current in a 500kV Busbar Short-Circuit Accident
Advanced Materials Research, 2011The three-phase short-circuit fault of the 500 kV busbar of Waigaoqiao No.2 Power Plant was described, and the fault recorder data was analyzed for short-circuit current. The RMS of short-circuit current decaying fundamental frequency component, DC component and the attenuation time constant was obtained by Fourier transform, extrapolating with the ...
Wei Cao +3 more
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Remedial operations for open- and short-circuit faults of permanent magnet fault tolerant motor
2015 IEEE 28th Canadian Conference on Electrical and Computer Engineering (CCECE), 2015Due to their concentrated windings and modular topology, permanent-magnet fault-tolerant (PMFT) motors inherently offer decoupling phases and fault-tolerant capability. According to open- and short-circuit faults, and in order to keep torque performance invariant during the faulty operation, two relevant fault tolerant strategies are separately ...
Binqiang Si +3 more
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TLM modeling of transformer with internal short circuit faults
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2007Purpose – The purpose of this paper is to describe a technique for modeling transformer internal faults using transmission line modeling (TLM) method. In this technique, a model for simulating a two winding single phase transformer is modified to be suitable for simulating an internal fault in both windings.Design/methodology/approach – TLM technique ...
Ozgonenel, Okan +2 more
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Calculation of transformer internal faults in short circuit analysis
2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008This paper presents a novel method of modeling internal faults in a power transformer. The method leads to a model which is compatible with commercial phasor-based software packages. Consequently; it enables calculation of fault currents in any branch of the network due to a winding fault of a power transformer.
G. Ghanavati +3 more
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Short circuit tests for detection of high impedance faults
18th International Conference and Exhibition on Electricity Distribution (CIRED 2005), 2005This project presents a summary of the tests realized with equipment, with the purpose of detecting the high impedance faults that occur in the electrical systems, and also the researches done to evaluate the status of the art of equipment and/or processes used to detect the high impedance faults of the electrical energy distribution system. During the
E.J. Rufato, C.C.B. de Oliveira
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Analysis of a Transformer Short-Circuit Fault in Near Zone
The 4th International Conference on Information Technologies and Electrical Engineering, 2021Jian He +3 more
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Short-Circuit Calculations for Multiline Switching and End Faults
IEEE Transactions on Power Apparatus and Systems, 1970In the short-circuit study of a network with mutually coupled lines, complications in calculation are introduced by the consideration of line removals, additions, impedance changes, and end faults. The modification of Z-bus terms to include these network changes is facilitated by the new algorithms presented in this paper.
Tomas Dy Liacco, Kavuru Ramarao
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A review on turn-turn short circuit fault management
2015 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS), 2015Permanent Magnet (PM) machines are increasingly being used in safety critical systems in aerospace and automotive applications. In such applications, reliability and availability are key concerns. Numerous works have been presented in literature which take into account both system reliability and availability in the event of single fault within the PM ...
Puvan Arumugam +4 more
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Type Identification of Short Circuit Faults Based on Alexnet
2019 IEEE 3rd International Electrical and Energy Conference (CIEEC), 2019Correct identification of fault types after grid short-circuit faults is the basis for fault handling, and it is also the basis and difficulty of grid fault analysis. In view of the traditional method, it is difficult to quickly and correctly guide the action of the circuit breaker relying on the electrical quantity judgment ,so based on the deep ...
Liu Fang +8 more
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