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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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Fault voltage drop and impedance at short-circuit currents in low-voltage circuits
Electrical Engineering, 1941In the paper are presented new data on (1) arc-voltage drop and current-limiting effects for arc faults in bar-conductor structures, (2) current-limiting effect of insulated-cable arc faults, (3) cable impedance in an iron conduit, and (4) impedance of low-voltage switchgear circuit assemblies, derived from tests at short-circuit currents in circuits ...
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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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A new gate circuit performing fault protections of IGBTs during short circuit transients
Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344), 2003Short circuit faults of IGBTs determine overcurrent through the devices subsequently to a turn-on switching or during the on-state condition, leading respectively to hard switching fault (HSF) or fault under load (FUL). Firstly, the state of the art as appearing in literature is recalled and discussed.
BELVERDE G +4 more
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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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Inter-turn short-circuit fault model for magnetically coupled circuits: A general study
2016 IEEE Industry Applications Society Annual Meeting, 2016Inter-turn short-circuit (ITSC) fault is one of the most typical fault in different types of magnetically coupled circuits such as transformers and rotating or linear electrical machines. This paper presents a general study to approach the ITSC understanding and modeling as long as the circuit can be represented in state-space (SS) equations.
Alberto Berzoy +2 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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Universal Short-Circuit and Open-Circuit Fault Detection for an Inverter
2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia), 2023B. Brown, Z. Zhang
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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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A technique for diagnosing short-circuit and open-circuit faults of the three-phase inverter
2022 19th International Multi-Conference on Systems, Signals & Devices (SSD), 2022Chakib Drif +2 more
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