Magnets And Electric Currents An Elementary Treatise for the Use of Electrical
Magnets And Electric Currents An Elementary Treatise for the Use of Electrical
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At the places where the trans- formation of energy is to be made, alternate current transformers are placed, the primary coils of these ALTERNATING OR PERIODIC CURRENTS. 26 1 transformers being connected across between the two primary circuits. These transformers, taking primary current from these mains at a high pressure, transform down the pressure in a certain ratio, say from 2000 to 100 volts ; and from their secondary terminals proceed two conductors, called secondary leads, to which are a...ttached the lamps or motors, or other devices for uti- lising the current. In this system there is a loss of power due to the heating of the primary mains, and also a loss due to the internal losses in the transformers ; but under proper conditions, and beyond a certain distance, these two sets of losses may be made to involve less total cost than would be the case under the direct transmission of the same amount of electric power at a lower pressure. In the early days of electric lighting attempts were made to arrange the transformers with their primary coils in series, as in Fig.
What to read after Magnets And Electric Currents An Elementary Treatise for the Use of Electrical?
You can find similar books in the "Read Also" column, or choose other free books by John Ambrose Fleming to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
At the places where the trans- formation of energy is to be made, alternate current transformers are placed, the primary coils of these ALTERNATING OR PERIODIC CURRENTS. 26 1 transformers being connected across between the two primary circuits. These transformers, taking primary current from these mains at a high pressure, transform down the pressure in a certain ratio, say from 2000 to 100 volts ; and from their secondary terminals proceed two conductors, called secondary leads, to which are a...ttached the lamps or motors, or other devices for uti- lising the current. In this system there is a loss of power due to the heating of the primary mains, and also a loss due to the internal losses in the transformers ; but under proper conditions, and beyond a certain distance, these two sets of losses may be made to involve less total cost than would be the case under the direct transmission of the same amount of electric power at a lower pressure. In the early days of electric lighting attempts were made to arrange the transformers with their primary coils in series, as in Fig.
What to read after Magnets And Electric Currents An Elementary Treatise for the Use of Electrical?
You can find similar books in the "Read Also" column, or choose other free books by John Ambrose Fleming to read onlineMoreLess
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