Electricians' operating and testing manual; (1910)
Horstmann, Henry C. [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. H. Drake & co · leaf 122
witchboard while nearly at full pressure.The pressure may be reduced only sufficient to trans- 120 Operating and Testing fer the greater part of the load upon the machinewhich is to remain in service. If it is reduced morethan this, the dynamo will be run as a motor by theother machine.… … iJcE± i^=r Figure 80 convenient for the operation of variable speed motorssince they make two voltages available. Figure 80 shows the connections of the system usedby the AYestinghouse Co. The armature of the dy-namo is connected so that it can produce both alter-nating and direct currents. The…
Electrical engineering · Electric testing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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