American Electrician Volume 10

American Electrician Volume 10

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1898 edition. Excerpt: ...ownership complete a convention programme, which from its extreme appropriateness, reflects great credit upon those who had charge of its preparation. Of the committee reports, that on a standard candle power of incandescent lamps will be awaited with much interest. Though first taken up by Dr. Bell in'189t, and definitely brought before the American Institute more than two years ago, thus far no progress seems to be made toward the end in view beyond a report of a committee of the latter body, laying down certain principles upon which a cominercial standard should be based. It is sincerely to be hoped that action will be taken at Chicago definitely establishing a commercial method of standardization. Regulating Alternating Current Line Voltage. On another page will be found an article which explains in a simple manner how, by means of an over-excited synchronous motor or rotary transformer in circuit, the inductive drop of an alternating current line may be neutralized, or both the inductive and ohmic drops neutralized, or even a voltage obtained at any point of a line in excess of the generator voltage. As will be seen, this curious result is produced through the motor or converter being so designed as to take a current leading the impressed e.m.f., thus having an action similar to a condenser. The e.m.f. set up in a condenser acts in a direction opposite to that of an e.m.f. set up in an inductance, and therefore if each of these is of the same value, the one will neutralize the other, which is the condition when the inductive drop alone is neutralized in the case above quoted. If the ohmic drop is also to be neutralized, or if the line immediately beyond the motor or converter is to be compounded, then an inductance or choke coil must...
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Product details

  • Paperback | 532 pages
  • 189 x 246 x 27mm | 939g
  • United States
  • English
  • black & white illustrations
  • 1236806255
  • 9781236806253