First Live Superconducting Cable

"First Live Superconducting Cable," October 2006, Power, pg. 150 (8)


The world's first in-grid superconducting power cable was energized in Albany, NY, on July 20.  The 1,150 foot-long underground cable - intended to demonstrate that high-temperature superconducting (HTS) wire can improve electricity transmission and distribution by integrating all three phases into a single cryostat - operates at 34,500 volts, with a nominal carrying capacity of 800 amperes.  The cable was developed by SuperPower Inc. (, a subsidiary of Intermagnetics General Corp., and its partners Sumitomo Electric Industries Ltd. ( and BOC Group, which merged with Linde Group ( this August.  It links the Riverside and Menands substations of the North Albany Service Center of national Grid USA ( via a standard utility underground right-of-way. [Read More]

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