Science Fair Project Encyclopedia
Cross Sound Cable
The Cross Sound Cable is a 40 kilometre long bipolar 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. 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 converters of Cross Sound Cable are examples of HVDC light technology. Power can flow in either direction between New Haven and Shoreham terminals.
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