Alternating Electric Currents
Alternating Electric Currents
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FIG. 56. ONE-EIGHTH H. P. ALTERNATING- CURRENT FAN MOTOR.
ELECTRIC MOTORS. 165 than half a horse-power in capacity, has yet been produced in the United States, which is capable of starting at fall load, from FIG. 57 ALTERNATING -CURRENT FAN MOTOR.
rest, on ordinary alternating circuits, and which will run with a reasonable amount of economy. There are, however, a num- 166 ALTERNATING ELECTRIC CURRENTS.
ber of small alternating- current motors, some of which operate with the aid of a commutator,... as, for example, the fan mo- tor, shown in Fig. 56. Here the current through the fields is reversed at every al- ternation of the alternating current, but by means of the commutator, the effect of this reversal of magnetism is reversed upon the armature current, and a contin- uous magnetic pull produced. Unfortu- nately the efficiency of such machines is comparatively small, so that they are only capable of being employed in small sizes, where economy is not of much impor- tance. Another form of alternating- cur- rent motor of this type is seen in the fan motor shown in Fig, 57.
What to read after Alternating Electric Currents?
You can find similar books in the "Read Also" column, or choose other free books by Edwin J Edwin James Houston to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
FIG. 56. ONE-EIGHTH H. P. ALTERNATING- CURRENT FAN MOTOR.
ELECTRIC MOTORS. 165 than half a horse-power in capacity, has yet been produced in the United States, which is capable of starting at fall load, from FIG. 57 ALTERNATING -CURRENT FAN MOTOR.
rest, on ordinary alternating circuits, and which will run with a reasonable amount of economy. There are, however, a num- 166 ALTERNATING ELECTRIC CURRENTS.
ber of small alternating- current motors, some of which operate with the aid of a commutator,... as, for example, the fan mo- tor, shown in Fig. 56. Here the current through the fields is reversed at every al- ternation of the alternating current, but by means of the commutator, the effect of this reversal of magnetism is reversed upon the armature current, and a contin- uous magnetic pull produced. Unfortu- nately the efficiency of such machines is comparatively small, so that they are only capable of being employed in small sizes, where economy is not of much impor- tance. Another form of alternating- cur- rent motor of this type is seen in the fan motor shown in Fig, 57.
What to read after Alternating Electric Currents?
You can find similar books in the "Read Also" column, or choose other free books by Edwin J Edwin James Houston to read onlineMoreLess
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