The case for dc versus ac power transmission is reviewed. It is concluded that for long transmission distances, i.e. more than 800 km (500 miles), dc transmission is cheaper and probably more reliable. The 1.0-MV Pacific Intertie is cited as an example of a modem efficient dc system.
Topics
Power transmission
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© 2002 American Association of Physics Teachers.
2002
American Association of Physics Teachers
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