Equivalent Scheme for Calculating Short-Circuit Current in an Alternating-Current Electric Traction Network

Autor:	L. A. German, A. S. Serebryakov, K. S. Subkhanverdiev, V. L. Osokin
Rok vydání:	2019
Předmět:	Computer science medicine.medical_treatment Overhead (engineering) Traction (orthopedics) Topology Power (physics) law.invention Transmission line law medicine Equivalent circuit Electrical and Electronic Engineering Alternating current Short circuit Electronic circuit
Zdroj:	Russian Electrical Engineering. 90:516-521
ISSN:	1934-8010 1068-3712
DOI:	10.3103/s1068371219070058
Popis:	The authors have proved the feasibility of substitution of a three-phase power-supply system with a single-phase one when calculating three-phase circuits in electric traction network irrespectively of the external power supply arrangement. In addition, calculation features have been established for particular transformer winding connection configurations (Y/Y or Y/Δ). Based on results of an analysis performed for minimizing the methodological error in calculating the short-circuit currents, a single-phase equivalent circuit has been developed for the intersubstation zone of the traction network, which takes into account the connection between two adjacent substations via an overhead transmission line of 110 (220) kV. An example of calculation in accordance with the proposed replacement scheme is given.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9026dd0024be21f4adcb1c5064bf6746 https://doi.org/10.3103/s1068371219070058 Zobrazit plný text záznamu Full text from SpringerLink