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- Title
Graphene-Enhanced CuW Composites for High-Voltage Circuit Breaker Electrical Contacts.
- Authors
Liu, Tan; Han, Yu; Jia, Dongchen; Pang, Zhen; Fu, Yuwei; Song, Zhongxiao; Ding, Yi
- Abstract
Featured Application: The innovative graphene-enhanced CuW composites can be applied to 252~1100 kV high-voltage circuit breakers to improve the breaking capacity of high-voltage circuit breakers. To address the issue of over-standard short-circuit currents in a power system, it is imperative to enhance the comprehensive performance of the electrical contacts, which serve as the lynchpin of circuit breakers, so as to improve the breaking capacity of high-voltage circuit breakers. Graphene, as the most prominent two-dimensional carbon material in recent years, has garnered widespread applications across various fields. In this study, graphene-enhanced CuW composites for high-voltage circuit breaker electrical contacts were prepared innovatively using integrated vacuum infiltration technology. The innovative graphene-enhanced CuW composites significantly improved the mechanical, electrical, and ablation resistance properties, and have been successfully applied in the 252 kV/63 kA high-voltage SF6 circuit breakers, achieving 20 times effective consecutive full-capacity short-circuit current breaking. It provides a new route for the development and application of high-performance CuW electrical contacts. Looking ahead, it is planned to extend their application to higher voltage grade high-voltage circuit breakers.
- Subjects
ELECTRIC circuits; CARBON-based materials; SHORT-circuit currents; VACUUM technology; HIGH voltages
- Publication
Applied Sciences (2076-3417), 2024, Vol 14, Issue 7, p2731
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app14072731