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 166
ch means that the alternating-current voltage across any twocollector rings is equal to thedirect-current voltage (meas-ured aci-oss brushes of oppositepolarity) multiplied by 0.612.Conversely, the direct-currentvoltage is equal to the alternat-ing-current voltage across anytwo rings in a… … Fig. 15. Relation of A. C. Voltages in a Four-Ring, Two-Phase Rotary Converter But V, Cos 45° = -^ Ve 2y, Cos45° = ^\/2: Ve 27, V2 Edc V2 - = .500 V2 147 26 MANAGEMENT OF DYNAMO-ELECTRIC MACHINERY Consider then the voltages on a four-ring (two-phase) rotaryin which 1, 2, 3, and J/, are phases; the…
Electrical engineering
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