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1960 - HIGHEST VOLTAGE TRANSFORMER - EHV steps up incoming voltage to a range of 460,000 to new world high of 750,000 volts

HIGHEST VOLTAGE TRANSFORMER

E&MP 40.041

Electric Transformers

December 8, 1960

PITTSFIELD, Mass., December 8 -- World's highest voltage power transformer, left of concrete wall, steps up incoming voltage to a range of 460,000 to new world high of 750,000 volts at General Electric's Project EHV (Extra-High-Voltage) near here.

Regulating transformer, at right, regulates the 115,000-volt incoming supply by +30 percent to allow different voltages to be tested on the line.

Probably the world's largest bushings extend 18 feet above and 10 feet into the power transformer.

Photo ## NB16565


Original Caption by Science Service
© General Electric Company



National Museum of American History

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