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Title: Superconducting fault current-limiter with variable shunt impedance

Abstract

A superconducting fault current-limiter is provided, including a superconducting element configured to resistively or inductively limit a fault current, and one or more variable-impedance shunts electrically coupled in parallel with the superconducting element. The variable-impedance shunt(s) is configured to present a first impedance during a superconducting state of the superconducting element and a second impedance during a normal resistive state of the superconducting element. The superconducting element transitions from the superconducting state to the normal resistive state responsive to the fault current, and responsive thereto, the variable-impedance shunt(s) transitions from the first to the second impedance. The second impedance of the variable-impedance shunt(s) is a lower impedance than the first impedance, which facilitates current flow through the variable-impedance shunt(s) during a recovery transition of the superconducting element from the normal resistive state to the superconducting state, and thus, facilitates recovery of the superconducting element under load.

Inventors:
;
Publication Date:
Research Org.:
Superpower, Inc, Schenectady, NY, USA
Sponsoring Org.:
USDOE
OSTI Identifier:
1108610
Patent Number(s):
8,588,875
Application Number:
12/691,325
Assignee:
Superpower, Inc. (Schenectady, NY) GFO
DOE Contract Number:  
F36-03G013033
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Llambes, Juan Carlos H, and Xiong, Xuming. Superconducting fault current-limiter with variable shunt impedance. United States: N. p., 2013. Web.
Llambes, Juan Carlos H, & Xiong, Xuming. Superconducting fault current-limiter with variable shunt impedance. United States.
Llambes, Juan Carlos H, and Xiong, Xuming. Tue . "Superconducting fault current-limiter with variable shunt impedance". United States. doi:. https://www.osti.gov/servlets/purl/1108610.
@article{osti_1108610,
title = {Superconducting fault current-limiter with variable shunt impedance},
author = {Llambes, Juan Carlos H and Xiong, Xuming},
abstractNote = {A superconducting fault current-limiter is provided, including a superconducting element configured to resistively or inductively limit a fault current, and one or more variable-impedance shunts electrically coupled in parallel with the superconducting element. The variable-impedance shunt(s) is configured to present a first impedance during a superconducting state of the superconducting element and a second impedance during a normal resistive state of the superconducting element. The superconducting element transitions from the superconducting state to the normal resistive state responsive to the fault current, and responsive thereto, the variable-impedance shunt(s) transitions from the first to the second impedance. The second impedance of the variable-impedance shunt(s) is a lower impedance than the first impedance, which facilitates current flow through the variable-impedance shunt(s) during a recovery transition of the superconducting element from the normal resistive state to the superconducting state, and thus, facilitates recovery of the superconducting element under load.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 19 00:00:00 EST 2013},
month = {Tue Nov 19 00:00:00 EST 2013}
}

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