Dynamic Electricity; Its Modern Use and Measurement, Chiefly in Its Application to Electric Lighting and Telegraphy Including, I. Some Points in Electric Lighting
Dynamic Electricity; Its Modern Use and Measurement, Chiefly in Its Application to Electric Lighting and Telegraphy Including, I. Some Points in Electric Lighting
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1890 Excerpt: ...paper. To measure with completeness for commercial purposes a supply of electricity will entail, therefore, a continuous record of each of the two elements just referred to, current and pressure, either separately or combined. In the supply of towns, however, the question for the consumer, may, and will most probably, ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1890 Excerpt: ...paper. To measure with completeness for commercial purposes a supply of electricity will entail, therefore, a continuous record of each of the two elements just referred to, current and pressure, either separately or combined. In the supply of towns, however, the question for the consumer, may, and will most probably, be much simplified by causing one of these elements, that of pressure, to remain constant, since it is very likely that a constant standard pressure of supplj' will be fixed by the Government in grant ing the several provisional orders. If so, it then becomes the duty of the suppliers to keep up to that pressure under penalty; and instruments for recording such pressure will have to be installed where required, and placed under proper supervision. For the customer, however, it will then generally suffice to have an exact record of the-quantity only of his individual consumption of electric supply. It has been thought advisable to precede the description of the recording or registering instruments, which alone are meters in the commonly-accepted sense of the word, by an enumeration of some of those non-recording instruments which are in more general use, since they suffice for present exigencies. This short descriptive enumeration is even almost necessary, since most of these instruments, by the addition of some recording apparatus or appliance by which the element of time can be integrated, may be made to enter into the class of registering meters. Indeed, some of them already possess their representative in this second class, or else have given rise to some modification, which has complied with the requirements in Ihe latter case. Thus, any current or ampere measurer may be converted into a record of quantity, or a coulomb meter, by the integ...
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