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2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES), 2021
Distribution transformer is one of the important electrical equipment in power grid. The working state of distribution transformer directly affects the safe and stable operation of power grid. When distribution transformer during short circuit, the short-circuit force will cause distribution transformer damage.
Xiaoxiao Luo +5 more
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Distribution transformer is one of the important electrical equipment in power grid. The working state of distribution transformer directly affects the safe and stable operation of power grid. When distribution transformer during short circuit, the short-circuit force will cause distribution transformer damage.
Xiaoxiao Luo +5 more
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Influence of single-phase short circuit to TWACS signal
2013 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering (QR2MSE), 2013Previous TWACS models are proposed for no electric power system fault conditions and don't involve the transmission of power system under fault condition. This paper studies the running state and signal detection of TWACS under the condition of single-phase short circuit condition in neutral point ineffectively grounded power system.
Zongye Liu +3 more
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Effects of Neutral Point Grounding Methods on Single-Phase Short Circuit Fault Characteristics
2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH), 2022 Amela Kokor +3 more
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Single-phase short-circuit torque
Electrical Engineering, 1932The analysis of synchronous machines previously published by Doherty and Nickle is expanded in this article to include the calculation of torque due to single-phase short-circuit. The torque is expressed as the sum of odd and even harmonic series which are simply related to those previously derived for the armature current.
C. A. Nickle +2 more
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Single-phase short-circuit torque of a synchronous machine
Electrical Engineering, 1932This paper extends the analysis of synchronous machines previously published by Doherty and Nickle to include the calculation of torque due to single-phase short circuit. The torque is expressed as the sum of odd and even harmonic series which are simply related to those previously derived for the armature current. The effect of amortisseur windings is
C. A. Nickle +2 more
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Research of the possibility for limiting the currents of a single-phase short circuit in HV networks
2020 12th Electrical Engineering Faculty Conference (BulEF), 2020This article discusses the possibility of reducing the levels of single-phase short circuits in HV networks. Since over 80% of all short circuits are single-phase. The dimensional condition for the equipment in the HV switchgears is a three-phase short circuit, as a result of which the currents of single-phase short circuits are inadmissible to be ...
Georgi Dimitrov +2 more
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Probabilistic Analysis on the Characteristics of Short Circuit in Single-phase Grounding Fault
2019 IEEE Sustainable Power and Energy Conference (iSPEC), 2019In combination with short circuit simulation and wavelet packet theory, the corresponding probabilistic analysis on the characteristics of single-phase grounding faults of distribution network under stochastic context is studied in this paper. There are two pieces of major research works: firstly, the Latin hypercube sampling (LHS) method is adopted to
Hui Yin +7 more
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Stability of Synchronous Motors Under Single Phase Grid Short Circuits
2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon), 2018This paper studies asymmetrical voltage sags caused by single phase short circuits appearing in power grids. Research defines the worst case fault conditions and shows their impact on stability of high voltage synchronous motors. Calculations done within the research take into account the distribution of voltage and current symmetrical components in ...
A. I. Fedotov, R. M. Mudarisov
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Influence of neutral earthing on single-phase short-circuit currents
, 2005 openaire +2 more sources
Digital diagnosis of short-circuit failures and reconfiguration of a single-phase VSI
2017 IEEE Southern Power Electronics Conference (SPEC), 2017This paper presents a short circuit (SC) fault diagnosis (FD) method for switches of a single-phase voltage source inverter (VSI) with fault-tolerant topology. From the diagnostic variables, the diagnostic rules are established through a digital procedure, and, consequently, the diagnostic method is performed with digital logic circuits.
Andre B. M. Oliveira +3 more
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