International Library of Technology · Scranton, International Textbook Co. · leaf 131
ion of the pole tips.When an inverted form of dynamo is used, such as the Edi-son bipolar, the pole-pieces must be separated from the base-plate by a footstep of zinc, usually four or five inches deep,in order to diminish the leakage. 2506 DYNAMO-ELECTRIC MACHINE DESIGN. 3T60. The pole tips must…
Electrical engineering
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