TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Short-circuit currents versus inductive reactances of turbo-genset for different types of shorts



Full text article ( in russian)

Year

 
2021

Issue

 
20212

Volume

 
2

Pages

 
60-65

Caption

 
Short-circuit currents versus inductive reactances of turbo-genset for different types of shorts

Authors

 
Dorzhieva B.

Keywords

 
turbo-genset, short circuit, subtransient reactance, transient reactance, short-circuit current

DOI

 
10.24937/2542-2324-2021-2-S-I-60-65

Summary

 
This paper discusses how short-circuit currents of turbo-genset depend on its inductive reactances for the cases of triple-, double- and single-phase shorts. The study tackles air-cooled turbo-gensets. The purpose of this work was to investigate the effect of changes in synchronous, transient and subtransient inductive reactances of turbo-genset upon short-circuit currents for different types of shorts. Short-circuit currents were calculated as per Park-Gorev equations. The changes in currents were plotted against both longitudinal and transverse axes. The results were further used to plot short-circuit currents as functions of subtransient and transient turbo-genset reactances. These plots show that even a minor change in subtransient and transient reactance results in a significant change of short-circuit current.

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ISSN (print) 2542-2324 / ISSN (online) 2618-8244

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