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1946 - Three transformers, built to step-up electric current to as much as 500,000 volts -- nearly 75 per cent greater voltage than that now carried by any transmission line

WORLD'S MOST POWERFUL TRANSMISSION LINE

E&MP 40.001

Electric Transformers

December 4, 1946

Sharon, Pa., Dec. 7 -- Three transformers, built to step-up electric current to as much as 500,000 volts -- nearly 75 per cent greater voltage than that now carried by any transmission line -- are shown in the test pit of Westinghouse Electric Corporation's Transformer Division here.

The transformers, each 37 feet high and with extra heavy insulation to withstand the as-yet-untried transmission voltages, are being built for the American Gas & Electric Service Corporation's experimental line near Brilliant, Ohio.

The A. G. & E. test seeks to determine the feasibility of transmitting electric power longer distances at greater voltages than ever before attempted.

A 287,000 volt line, the highest voltage line now in existence, can transmit power approximately 250 miles.

CP-4966 ###


Original Caption by Science Service
© Westinghouse



National Museum of American History

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