substation has definitions from the field of electricity
1
[ noun ] (electricity) a subsidiary station where electricity is transformed for distribution by a low-voltage network

Used in print

(Edwin L. Bigelow and Nancy H. Otis,...)

The latter now furnishes the area with electricity distributed from a modern sub-station at Manchester_Depot which was put into operation February 19 , 1930 and was improved in January 1942 by the installation of larger transformers .

Related terms

station

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