Stable Overload Operation of High-Temperature Superconductor Protective Resistors
- Authors: Malginov V.A.1, Malginov A.V.1, Fleishman L.S.2,3
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Affiliations:
- Lebedev Physical Institute, Russian Academy of Sciences
- Krzhizhanovsky Power Engineering Institute
- Ordzhonikidze Russian State Geological Prospecting University
- Issue: Vol 64, No 12 (2019)
- Pages: 1759-1766
- Section: Solid State
- URL: https://journals.rcsi.science/1063-7842/article/view/204848
- DOI: https://doi.org/10.1134/S106378421912017X
- ID: 204848
Cite item
Abstract
The use of high-temperature superconductor (HTS) resistors to protect electrical equipment and ac networks from emergency short-circuit currents and single phase-to-ground faults has been considered. It has been proposed to use a stable overload operation in HTS composite wires to enhance the speed of response and thermal stability of HTS current-limiting devices. Design solutions for the use of stabilized low-resistance HTS wires in protective resistors for ac networks have been developed that increase the resistance inserted in the circuit by several orders of magnitude. The characteristics of first-generation HTS wires with high critical parameters in the resistive state have been measured in a wide current overload range. Prototypes of instantaneous thermally stable current-limiting devices with HTS protective resistors have been fabricated and tested. The design parameters of HTS protective resistors for use in electric power networks have been calculated.
About the authors
V. A. Malginov
Lebedev Physical Institute, Russian Academy of Sciences
Author for correspondence.
Email: malginovva@lebedev.ru
Russian Federation, Moscow, 119991
A. V. Malginov
Lebedev Physical Institute, Russian Academy of Sciences
Email: malginovva@lebedev.ru
Russian Federation, Moscow, 119991
L. S. Fleishman
Krzhizhanovsky Power Engineering Institute; Ordzhonikidze Russian State Geological Prospecting University
Email: malginovva@lebedev.ru
Russian Federation, Moscow, 119071; Moscow, 117997