Central station experiences, a series of narratives on the trials and tribulations of a steam engineer while learning to run an electric station; (1901)
New York, Power Publishing Co. · leaf 14
ordinarily; but in this case there was. With the fieldswitch closed, the armature will not build up any electromotiveforce, so that when you closed the circuit with the field killedand then opened the field switch, there was no pressure at thebrushes. The armature was working up, though, when… … Yes. It would have broken down the coil at once withoutwaiting so long. Why? When you opened the switch with the circuit connected, themachine had no E. M. F. and had to work up through resistance.When you shut down and started up again with the field switchopen and the circuit disconnected the…
Electric power-plants
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