The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 200
e machine at various loads. It is to be noted that in the system of connectionsho\^Ti in Fig. 57 only the armature currents are read.In order to obtain the efficiency of the machines, thenormal exciting current of both should be added to thearmature-loss current obtained directly by measurement.… … 10 Amperes.Fig. 58.— Efficiency of Two Coupled Dtnamos. since their excitations are not equal, and that of the motoris not of the normal value. The current entered in the fifth column of the annexedtable is thus only the armature current C, as read onammeter A,, representing the armature and…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
