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 137
tator is cross-connected. 116 CALCULATIONS 107 Fig. 132 shows a six-pole drum duplex doubly re-entrant lapwinding composed of 60 inductors with a front pitch of —11, a backpitch of +7, a commutator pitch of —2, and 12 paths in parallelthrough the armature. This winding is also retrogressive, and… … Fig. 132. Six-Pole Doubly Re-entrant Lap Winding segments being unshaded and shaded. It should be noted that witha duplex or any other multiplex winding, the brushes must be wideenough to cover at least as many segments as there are windings.Here the brushes cover two segments. Fig. 133 represents…
Electrical engineering
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