Wiring diagrams of electrical apparatus and installations (1913)
McGraw-Hill · New York, McGraw-Hill Book Company · leaf 67
■S/)tjnt yO \/9 ^ AT /£ ^s /J ID o 0 o A 6 dl J*<? ioS/e … ^C<yua//ecr Fig. 93.—Connections of a Tirrill regulator for two compound machines, one of which isa reserve unit. The regulator can be operated on either one, but not on both at the sametime. Several compound-wound generators can be connected in parallel and the regulatorused on one. The…
Electric wiring
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