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Calculation of branch short circuit asymmetrical current considering breaking sequences
2021 IEEE 4th International Electrical and Energy Conference (CIEEC), 2021With the expansion of the scale of power grid interconnection, the grid connection is becoming more and more closely, and the grid resistance ratio is also increasing, which slows down the attenuation of the DC component of the short-circuit current, and affects the checking of the breaking capacity of the circuit breaker. At present, in practice, only
Ruanming Huang +6 more
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Features of asymmetric short circuit currents calculation in the elplek software product
Energy and automation, 2021In order to simplify the analysis of the electrical networks operation modes , specialized software tools for mathematical modeling of processes in them are used. There are many software products, but most of them are paid. To carry out research in complex power systems and obtain results in certain sections when performing practical and course work,
O. Gai, V. Bodunov, A. Zhiltsov
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Analysis of breaking capability within asymmetrical short circuits
2015 16th International Scientific Conference on Electric Power Engineering (EPE), 2015This paper discusses the occurrence of asymmetrical currents and difficulties within their breaking due to the reduced breaking capability in limitary areas of breaker's characteristics. It's aimed at breaking of generator short-circuits with specific course.
Vladimir Vajnar +2 more
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PM Synchronous Machine Drive Response to Asymmetrical Short-Circuit Faults
IEEE Transactions on Industry Applications, 2014This paper investigates the impact of machine topology and parameters on the fault-mode characteristics of permanent-magnet synchronous machines (PMSMs) exposed to asymmetrical short-circuit (ASC) faults, one of the most dangerous faults in terms of peak current amplitudes and demagnetization risks.
Gilsu Choi, T. M. Jahns
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Asymmetrical Short-Circuit Current Interruption by Synthetic Testing Method
IEEE Power Engineering Review, 1983In this paper, the authors are dealing with a problem which, up to now, has not resulted into any official recommendation, i.e the method to be used to define the transient recovery voltage to be applied further to the interruption of an asymmetrical current, on synthetic testing.
E. Thuries, J. Dayet, B. Joyeux-Bouillon
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Analysis of short-circuit asymmetrical currents in power distribution systems
2012 47th International Universities Power Engineering Conference (UPEC), 2012This work focuses on the study of electromagnetic transients existing in power systems in the occurrence of phase to ground and three phase faults, aiming to evaluate the dynamic capability of circuit breakers, switch disconnectors and current transformers.
M. J. S. Ramos +4 more
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