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

Труды Крыловского государственного научного центра

Beligma S. Dorzhieva¹ 

[1] JSC Power Machines, St. Petersburg, Russia;

关键词: turbo-genset;    short circuit;    subtransient reactance;    transient reactance;    short-circuit current;   

DOI  :  10.24937/2542-2324-2021-2-S-I-60-65

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown