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 44
S 23 it follows that the speed of a given machine as a motor will be gen-erally from 6 per cent to 10 per cent less than its speed as a T^ynamo.If, however, the field strength is not constant, either because of arma-ture reaction or changes in the field current, the relation, of course,ceases to…
Electrical engineering
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