Cross Sound Cable

From Wikipedia, the free encyclopedia

The Cross Sound Cable is a 40 kilometer (about 24.85 miles) long bipolar High-voltage direct current (HVDC) cable between New Haven, Connecticut, USA and Shoreham, Long Island, USA. The Cross Sound Cable can transmit a maximum power of 330 MW at a voltage of +/- 150 kV. The maximum current for Cross Sound Cable is 1175 amperes.

Construction of the Cross Sound Cable was started in 2002. The cable was first laid on the sea floor; then a machine known as a jet plow tool used high-pressure water to fluidize the sea bed directly under the cable. The cable then fell into the liquidized trench.

Concern over possible environmental impact of the buried underwater cables caused significant delay in operation. Commercial operation of the cable was delayed until after the August 14, 2003 blackout of much of the eastern North American power system. Immediately after the blackout, emergency permission was secured to operate the cable. The cable has since been operating and, generally, sells electricity from the New England power grid to the New York power grid.

The converters of Cross Sound Cable are examples of HVDC light technology. Power can flow in either direction between New Haven and Shoreham terminals.

[edit] External links

Retrieved from "http://en.wikipedia.org../../../c/r/o/Cross_Sound_Cable_34b3.html"