Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 411
voltage and it is knownas the Tirrill regulator.* The device on each feeder panel marked relay in Fig. 290serves to control the time which elapses between the instant of an overload or short circuit on thepair of feeders and the instant oftripping of the circuit breaker. The essential features of… … 192. Switchboards for receivingstations. (<?) Iiidiicticvi motorpanels.— Small induction motorsare generally provided with aswitch for closing the circuit and afuse for opening the circuit in caseof excessive overload or short cir-cuit, and these small accessories areusually mounted on the wall…
Dynamos · Electric motors
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