Word: kilovolt
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...blueprint, perfected by the Southwest experience, is now being adapted to the Northern Plains. One of the first of many projects is an 800 kilovolt (kv) transmission line from Underwood, North Dakota, to Delano, Minnesota, linking into the Midcontinental Area Power Pool, a grid system of public and privately-owned utilities and members of the National Electrical Reliability Council. From Underwood the line is direct current; at Delano it is converted into three separate 345 kv alternating current lines and fed into the power grid...
...severe summer thunderstorm had just swept across the green suburban hills of northern Westchester in the vicinity of the Indian Point No. 3 nuclear power plant overlooking the Hudson River. At 8:37 p.m., according to Con Ed's preliminary analysis, flashes of lightning knocked out two 345-kilovolt lines. That immediately cut off all the electricity from the 900-megawatt Indian Point facility, and the nuclear plant was promptly and safely shut down. Then, while duty officers at Con Ed's main control center in Manhattan-a huge, display-filled room somewhat like Mission Control in Houston...
Utilities, on the other hand, are enthusiastic. They hail the 765-kilovolt line as one of their industry's great new developments. The lines not only carry up to 50% more electrical power than conventional 345-kv. or 500-kv. lines, but also lose much less energy in transmission from generating plants to cities-an important consideration in the growing energy crisis. So far, about 1,000 miles of such lines are in operation, mostly in the Midwest and Far West -with thousands more miles of the lines scheduled to be built in the next decade...
...quarantine is impossible, given 1) the obligations of a member to come to the aid of its pool, and 2) the speed at which a cascade travels. Nonetheless, Maine was the only New England state completely unaffected by the blackout. It was able to cut off its single, 115-kilovolt line to CANUSE in time. The Pennsylvania-New Jersey-Maryland system escaped because its seven connections to CANUSE blew in time. Con Edison had no automatic cutoff system that protected it in the emergency...
During the two days that the committee is here, visits will be made to the physics, and chemical laboratories, and high voltage laboratory, where the new motor generator set of 200 kilovolt amperes has been installed. The motor is unique, being built specially for the Engineering School by Westinghouse, with a frequency range from 20 to 75 cycles, and sine wave under all conditions...