Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 200
tion to reciprocatingengines. In Fig. 173 is shown the laminated pole piece and one of thestrip-wound field coils, and in Fig. 174 is shown a complete pole piecewith its coil ready for bolting to the face of the supporting structure. Field Coils. The field coils are wound on spools or in… … Fig. 171. Rotor with Squirrel-Cage Winding air to facilitate radiation, and hence cooling. The strap-wound coilsare insulated between turns with asbestos strip forming a fireproofcoil which is practically indestructible. The wire coils are wounddry and treated with insulating varnishes. In every…
Electrical engineering
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