Practical calculation of dynamo-electric machines; a manual for electrical and mechanical engineers and a text-book for students of electrical engineering: continuous current machinery; (1902)
Wiener, Alfred Eugene · New York, Electrical world and engineer · leaf 128
4 mm.), see columns £, Table XIX. For toothed and perforated armatures, Fig. 57, the core-cir-cumference insulation is carried out in form of channels ortubes of paper, or cardboard, or vulcanized fibre, fitted intothe grooves, or, especially in large toothed-core machines, by §24] DIMENSIONS OF… … Fig. 57.—Various Forms of Slot Insulation. and according to the voltage of the dynamo, columns e, TableXIX. The core faces of toothed armatures are insulated in asimilar manner as those of a smooth armature. Fig. 58 shows
Electric machinery -- Design and construction · Electric machinery -- Direct current
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