Handbook for the use of electricians in the operation and care of electrical machinery and apparatus of the U. S. seacoast defenses .. (1904)
United States. War Dept · Washington, Govt. print. off. · leaf 67
rrows corresi)ond toarrows on si)ool tianges, the spools being so placed that the arrows point in oppo-site directions on each succeeding si)Ool. Arrows on bearings must point indirection of rotation. (/*) To adjust the compounding.—Every compound generator is providedwith a .shunt consisting of… … 70. Freeing the Pigtail from the Brush Holder. 50 HANDBOOK FOR ELECTRICIANS. 10 per cent may be obtained by changing the length of this shunt. The arma-ture and field coils are, during winding, subjected to an insulation test with avoltage many times higher than the normal and their resistance is…
Electric machinery · Searchlights · Coast defenses
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