First Live Superconducting Cable

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

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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. (www.superpower-inc.com), a subsidiary of Intermagnetics General Corp., and its partners Sumitomo Electric Industries Ltd. (www.sei.co.jp) and BOC Group, which merged with Linde Group (www.linde.com) this August.  It links the Riverside and Menands substations of the North Albany Service Center of national Grid USA (www.natonalgridus.com) via a standard utility underground right-of-way. [Read More]