TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE
Science journal
ISSN (print) 2542-2324 /(online) 2618-8244 |
<
>
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. |