The Motor And the Dynamo
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In our eReader you can find the full English version of the book. Read The Motor And the Dynamo Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Motor And the Dynamo
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Fig. 47 shows the connections for a pair of shunt generators feeding the bus bars of a distributing service. When the two machines are running, the switches shown in the figure being closed, the load may be distributed between the machines by the To PRIME MOVER Fig. 47. Shunt generators in parallel.
manipulation of the field rheostats. Being in parallel, the ter- minal voltage of the two machines will necessarily be the same, but a change of field which would cause an increase in the e. M. F. O...f one results in its taking on more of the load. Its ammeter will show that it is furnishing more current, and the load on the other machine may be so reduced that its ammeter will read less than zero, signifying that this generator is now drawing current from the bus bars and is being driven as a motor, its prime mover acting with a tendency to race. Such a state of things, should it occur in a generating plant, would be more or less dangerous 6o THE) MOTOR AND THE DYNAMO to the machinery, there being a tendency on the part of some generators to become overloaded and on the part of those driven to spark violently at the brushes.
What to read after The Motor And the Dynamo?
You can find similar books in the "Read Also" column, or choose other free books by James Loring Arnold to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Fig. 47 shows the connections for a pair of shunt generators feeding the bus bars of a distributing service. When the two machines are running, the switches shown in the figure being closed, the load may be distributed between the machines by the To PRIME MOVER Fig. 47. Shunt generators in parallel.
manipulation of the field rheostats. Being in parallel, the ter- minal voltage of the two machines will necessarily be the same, but a change of field which would cause an increase in the e. M. F. O...f one results in its taking on more of the load. Its ammeter will show that it is furnishing more current, and the load on the other machine may be so reduced that its ammeter will read less than zero, signifying that this generator is now drawing current from the bus bars and is being driven as a motor, its prime mover acting with a tendency to race. Such a state of things, should it occur in a generating plant, would be more or less dangerous 6o THE) MOTOR AND THE DYNAMO to the machinery, there being a tendency on the part of some generators to become overloaded and on the part of those driven to spark violently at the brushes.
What to read after The Motor And the Dynamo?
You can find similar books in the "Read Also" column, or choose other free books by James Loring Arnold to read onlineMoreLess
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