Shop And Road Testing of Dynamos And Motors a Practical Manual for the Testing
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In our eReader you can find the full English version of the book. Read Shop And Road Testing of Dynamos And Motors a Practical Manual for the Testing 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 Shop And Road Testing of Dynamos And Motors a Practical Manual for the Testing
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F. As soon as the field is broken the armature may generate a slight E. M. F. In virtue of the residual field, or in virtue of the slight influence which the armature current may have upon the pole pieces. These two effects are opposed and tend to neutralize each other, so neglecting their resultant, we must consider the moving armature to be electrically inert, and to act purely as any other ohmic resistance in circuit, and to consume energy in the form of heat. Since this energy is consumed a...s heat, it is unavailable for turning the armature as a motor, and is so small an amount that it could not do so were it available. To run the machine as a motor, a cer- tain amount of electrical energy must, within the machine itself, be transformed into the mechanical energy of rota- tion, and to secure this transformation there must be a greater potential difference at the terminals than that due solely to ohmic resistance. The energy expended in any part of a circuit is equal to the product of the cur- rent flowing, by the potential difference at the terminals; 350 TESTING OF DYNAMOS AND MOTORS.
What to read after Shop And Road Testing of Dynamos And Motors a Practical Manual for the Testing?
You can find similar books in the "Read Also" column, or choose other free books by Eugene Chilton Parham to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
F. As soon as the field is broken the armature may generate a slight E. M. F. In virtue of the residual field, or in virtue of the slight influence which the armature current may have upon the pole pieces. These two effects are opposed and tend to neutralize each other, so neglecting their resultant, we must consider the moving armature to be electrically inert, and to act purely as any other ohmic resistance in circuit, and to consume energy in the form of heat. Since this energy is consumed a...s heat, it is unavailable for turning the armature as a motor, and is so small an amount that it could not do so were it available. To run the machine as a motor, a cer- tain amount of electrical energy must, within the machine itself, be transformed into the mechanical energy of rota- tion, and to secure this transformation there must be a greater potential difference at the terminals than that due solely to ohmic resistance. The energy expended in any part of a circuit is equal to the product of the cur- rent flowing, by the potential difference at the terminals; 350 TESTING OF DYNAMOS AND MOTORS.
What to read after Shop And Road Testing of Dynamos And Motors a Practical Manual for the Testing?
You can find similar books in the "Read Also" column, or choose other free books by Eugene Chilton Parham to read onlineMoreLess
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