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 123
in be reduced to two, by joining all com-mutator bars which are situated 360 -r- p degrees apart, so thatsectors which are at any moment in the same polar position and,therefore, at the same voltage, are connected together. These con-nections are termed equipotential or cross-connections. Thus, in… … Fig. 117. Commutator Connections for a 4-Pole Cross-Connected Windiny each cross-connection must unite three bars situated 120° apart, andthe brushes may be either 60° or 180° apart; in an eight-pole machine,four commutator bars 90° apart must be joined, and the brushes maybe either 45° or 135°…
Electrical engineering
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