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Program on Technology Innovation: A Superconducting DC Cable
S. Eckroad

This report describes the design of an interregional, superconducting dc cable system that is intended to achieve 10 GW power capacity with a nominal current and voltage of 100 kA and 100 kV. When installed, it will enhance the safety, reliability, and efficiency of the existing ac power grid and enable a level of bulk power transfer that is not conceivable with today’s conventional technology. Additionally, this report provides insight into the groundbreaking research sponsored by the Electric Power Research Institute (EPRI) on superconducting dc cable systems. It will provide utilities and others with a basic understanding of the design concepts and the potential benefits of such a system and a well-thought-out starting point for further engineering design and optimization activities by both institutional research bodies and industrial organizations.

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