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Commissioning Of World's First Superconductor Power Transmission

[2008-7-31]

Tag : Flexible Power Cable

Hauppauge, NY - American Superconductor Corporation, Long IslandPower Authority (LIPA) and the Department of Energy (DOE) recentlycelebrated the commissioning of the world's first high temperaturesuperconductor (HTS) power transmission cable system in acommercial power grid.

The 138,000 volt (138 kV) system, whichconsists of three individual HTS power cable phases running inparallel, was energized on April 22, 2008 and is operatingsuccessfully in LIPA's Holbrook transmission right of way. Aceremony is being held today to commemorate the completion of thefirst phase and kick off the second phase of the project.

"Long Island Power Authority has a strong interest in thedevelopment of superconductor technologies and is the first utilityin the world to commission an HTS power transmission cable system,"said LIPA President and Chief Executive Officer Kevin Law. "We viewsuperconductor power cables as an important option in ourtechnology portfolio that will help us further enhance thereliability of our grid as we meet our customers' increasingdemands for electric power."

The HTS cable system installed in LIPA's power grid containshair-thin, ribbon-shaped HTS wires that conduct 150 times theelectricity of similar sized copper wires. This power densityadvantage enables transmission-voltage HTS cables to utilize farless wire and yet conduct up to five times more power.


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