A Superconducting Fault Current Limiter with a Power of 16 MV A


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The results of tests of a short-circuit resistive switching superconducting fault current limiter (SFCL) for dc mains with maximum voltage of 4.1 kV and rated current of 4 kA have been considered. The superconducting unit and automatic high-speed vacuum breaker are key components of the SFCL. The superconducting unit consists of eight series-parallel connected modules, each of which contains four parallel high-temperature superconducting (HTSC) tapes. The tests of the SFCL have been carried out under simulations of short-circuit current with maximum current of 20 kA (maximum rate of current rise is 2500 A/ms) at a voltage of 4 kV. The tests have shown the ability of SFCL to limit the current up to 4 kA and turn it off 5 ms after the starting the mode of current limitation. The mean temperature of a HTSC tape reached up to 190 K at a duration of current limitation of 5 ms, which is in the range of allowed temperatures (lower than 290 K). The time to restore superconductivity of SFCL after turning off the current was no higher than 0.3 s.

作者简介

I. Voloshin

JSC Technical Physics and Automation Research Institute

Email: journal-elektrotechnika@mail.ru
俄罗斯联邦, Moscow, 115230

D. Evsin

JSC Technical Physics and Automation Research Institute

Email: journal-elektrotechnika@mail.ru
俄罗斯联邦, Moscow, 115230

A. Kalinov

JSC Technical Physics and Automation Research Institute

Email: journal-elektrotechnika@mail.ru
俄罗斯联邦, Moscow, 115230

M. Kuznetsova

JSC Technical Physics and Automation Research Institute

Email: journal-elektrotechnika@mail.ru
俄罗斯联邦, Moscow, 115230

D. Rachitskiy

JSC Technical Physics and Automation Research Institute

Email: journal-elektrotechnika@mail.ru
俄罗斯联邦, Moscow, 115230

E. Tskhai

JSC Technical Physics and Automation Research Institute

Email: journal-elektrotechnika@mail.ru
俄罗斯联邦, Moscow, 115230

L. Fisher

JSC Technical Physics and Automation Research Institute

编辑信件的主要联系方式.
Email: journal-elektrotechnika@mail.ru
俄罗斯联邦, Moscow, 115230

D. Alferov

JSC Technical Physics and Automation Research Institute

Email: journal-elektrotechnika@mail.ru
俄罗斯联邦, Moscow, 115230

A. Budovskiy

JSC Technical Physics and Automation Research Institute

Email: journal-elektrotechnika@mail.ru
俄罗斯联邦, Moscow, 115230

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