Testing of Electro-Magnetic Machinery And Other Apparatus 1
Testing of Electro-Magnetic Machinery And Other Apparatus 1
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A central zero direct current ammeter, or two ammeters with polarities opposed are connected in series with the line; and a central zero direct-current voltmeter, or two voltmeters with polarities opposed are connected across the ter- minals of the generator. Pocket compasses should be used to note any changes in the polarities of the fields of either motor or generator. Any periodic actions of either machine should be timed with reference to any such actions in the other and such other measure...ments taken as may seem advisable. A light load, such as friction on the pulley, should be applied to the machine and its eflFect noted.
Data. Record such data as may seem useful in explaining the action.
Caution. A motor having carbon brushes should be used and it is preferable to set them in the neutral plane.
Explain. The action observed and draw a set of diagrams showing the successive changes which take place at no load. Ex- plain the effect of a load on the motor.
No. 59. OPERATION OF A SERIES MOTOR ON A CONSTANT CURRENT CIRCUIT.
What to read after Testing of Electro-Magnetic Machinery And Other Apparatus 1?
You can find similar books in the "Read Also" column, or choose other free books by Bernard Victor Swenson to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
A central zero direct current ammeter, or two ammeters with polarities opposed are connected in series with the line; and a central zero direct-current voltmeter, or two voltmeters with polarities opposed are connected across the ter- minals of the generator. Pocket compasses should be used to note any changes in the polarities of the fields of either motor or generator. Any periodic actions of either machine should be timed with reference to any such actions in the other and such other measure...ments taken as may seem advisable. A light load, such as friction on the pulley, should be applied to the machine and its eflFect noted.
Data. Record such data as may seem useful in explaining the action.
Caution. A motor having carbon brushes should be used and it is preferable to set them in the neutral plane.
Explain. The action observed and draw a set of diagrams showing the successive changes which take place at no load. Ex- plain the effect of a load on the motor.
No. 59. OPERATION OF A SERIES MOTOR ON A CONSTANT CURRENT CIRCUIT.
What to read after Testing of Electro-Magnetic Machinery And Other Apparatus 1?
You can find similar books in the "Read Also" column, or choose other free books by Bernard Victor Swenson to read onlineMoreLess
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