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- Title
Stable Overload Operation of High-Temperature Superconductor Protective Resistors.
- Authors
Malginov, V. A.; Malginov, A. V.; Fleishman, L. S.
- 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.
- Subjects
SUPERCONDUCTORS; ELECTRIC resistors; ELECTRIC networks; SHORT-circuit currents; WIRE
- Publication
Technical Physics, 2019, Vol 64, Issue 12, p1759
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/S106378421912017X