A transformer exploded at Hoover Dam.

Hoover Dam transformer fire quickly put out.

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One of the largest hydroelectric plants in the country, it produced thick clouds of black smoke and flames which were quickly extinguished.

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The explosion at the dam's base did not cause any injuries.

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The 8 million residents of Hoover Dam continue to get electricity from the Hoover Dam.

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Investigators are currently investigating the cause of the fire.

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Officials were trying to determine how much damage was done to the transformer.

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One of the 15 units that controls the voltages to power the customers.

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Jacklynn Gould (a regional director of the U.S. Bureau of Reclamation) stated that there is no danger to the power grid.

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