3 Words to use with dynamo

A conductor is supposed to be laid from Labrador to Patagonia, ending in the ocean at those points, and passing through New York, where a dynamo machine is supposed to be included in the circuit.

" They followed Whittam down into the dynamo room, an interesting spot for a machinist.

He would sit about and watch the Lord of the Dynamos while Holroyd went away to persuade the yard porter to get whisky, although his proper place was not in the dynamo shed but behind the engines, and, moreover, if Holroyd caught him skulking he got hit for it with a rod of stout copper wire.

3 Words to use with  dynamo