. A text-book of electrical engineering;. AAAAA_ \r. Fig. 184 Fig. 183 In the shunt motor, however, the relations are very different. A glamat Figs. 182 and 183 shows us that the current in the field windings is in tlsame direction, whether the machine is used as a motor or as a generateif the connections remain unchanged. The armature current, on the othhand, is reversed. Had the current remained the same in both armature ar 63. Direction of Rotation of Motors 199 field, the direction of rotation would have been changed, but as it has only-reversed in the armature, the direction of rotation o


. A text-book of electrical engineering;. AAAAA_ \r. Fig. 184 Fig. 183 In the shunt motor, however, the relations are very different. A glamat Figs. 182 and 183 shows us that the current in the field windings is in tlsame direction, whether the machine is used as a motor or as a generateif the connections remain unchanged. The armature current, on the othhand, is reversed. Had the current remained the same in both armature ar 63. Direction of Rotation of Motors 199 field, the direction of rotation would have been changed, but as it has only-reversed in the armature, the direction of rotation of the motor will be thesame as that of the generator. Hence, a shunt dynamo will run as a motorin the same direction, with the brushes; similarly a shunt motorcan be run as a generator in the same direction without altering theconnections. We have finally to consider the reversal of the direction of rotation ofmotors. Were we merely to change the connections with the supply mains,we should reverse the current in both armature and field winding


Size: 1568px × 1593px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1920, bookidcu3192400440, bookyear1920