Electric Lighting: A Practical Exposition of the Art, for the Use of Engineers, Students, and Others Interested in the Installation Or Operation of Electrical Plants, Том 1Van Nostrand, 1896 |
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Сторінка 4
... example , the switch may be placed at the entrance of a building or room . This is strictly true only of the incandescent lamp , but it practically applies to the arc lamp also . † A mixture of explosive gases , however , might be ...
... example , the switch may be placed at the entrance of a building or room . This is strictly true only of the incandescent lamp , but it practically applies to the arc lamp also . † A mixture of explosive gases , however , might be ...
Сторінка 11
... example , of fusing a copper rod of considerable diameter . The definite and complete invention of the principle of using the current of the machine itself to feed its own field magnet was independently and almost simultaneously ...
... example , of fusing a copper rod of considerable diameter . The definite and complete invention of the principle of using the current of the machine itself to feed its own field magnet was independently and almost simultaneously ...
Сторінка 18
... most important example of this is the univer- sal adoption of the " International " volt , ohm , and other electrical units , which are no longer abstract , as they 18 ELECTRIC LIGHTING . CHAPTER III GENERAL UNITS AND MEASURES.
... most important example of this is the univer- sal adoption of the " International " volt , ohm , and other electrical units , which are no longer abstract , as they 18 ELECTRIC LIGHTING . CHAPTER III GENERAL UNITS AND MEASURES.
Сторінка 19
... example , the data of electromagnetism are given in connection with the dynamo . There are , however , certain fun- damental units which are used in many branches , and a few of these are given in this chapter for convenience . The ...
... example , the data of electromagnetism are given in connection with the dynamo . There are , however , certain fun- damental units which are used in many branches , and a few of these are given in this chapter for convenience . The ...
Сторінка 28
... example , it may be classified with reference to the system as a whole , or with reference to some of its most important elements or characteristics . - Central Stations and Isolated Plants . Considered as a whole , electric - lighting ...
... example , it may be classified with reference to the system as a whole , or with reference to some of its most important elements or characteristics . - Central Stations and Isolated Plants . Considered as a whole , electric - lighting ...
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Electric Lighting: A Practical Exposition of the Art, for the Use of ..., Том 2 Francis Bacon Crocker Попередній перегляд недоступний - 2016 |
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accumulator action advantage alternating current ampere ampere turns ampere-hours apparatus arc lamps armature arrangement battery belt boiler brushes carbon cast iron cause cell cent central stations centrifugal centrifugal force charge circuit coal coils commutator condensation conductors connected considerable consists construction copper core cylinder diameter direct coupling direct current direct-current discharge dynamo effect efficiency Elec electric lighting electric-lighting plant Electrical Engineer employed fact feet field-magnet flux fly-wheel force gas-engine governor heat horse-power incandescent lamps increase inductors insulation iron isolated plants latter Lightning-Arrester load machine machinery magnetic mechanical mercurous sulphate motor objectionable obtained ordinary piston plates pole-pieces practically pressure produced pulley reduced resistance revolutions per minute shaft short circuit short-circuited shown in Fig speed square inch steam steam-engine stroke sufficient sulphate supply surface switch temperature tion tubes turbine usually valve voltage volts weight wheel winding wire zinc zinc sulphate
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Сторінка 450 - JW Dynamo Construction. A Practical Handbook for the use of Engineer Constructors and Electricians in Charge. Illustrated. 12mo., cloth $3.00 Electric Ship-lighting. A Handbook on the Practical Fitting and Running of Ship-s Electrical Plant, for the use of Ship Owners and Builders, Marine Electricians, and Sea-going Engineers in Charge.
Сторінка 22 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10" units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.
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Сторінка 447 - HASKINS, CH The Galvanometer and its Uses. A Manual for Electricians and Students. Fourth Edition, revised. 12mo, morocco.
Сторінка 22 - CGS system of electromagnetic units and which is represented sufficiently well for practical use by the unvarying current which, when passed through a solution of nitrate of silver in water, in accordance with a certain specification, deposits silver at the rate of 0.001118 of a gramme per second.
Сторінка 446 - DYNAMIC ELECTRICITY: Its Modern Use and Measurement, chiefly in its application to Electric Lighting and Telegraphy, including: 1. Some Points in Electric Lighting, by Dr. John Hopkinson. 2. On the Treatment of Electricity for Commercial Purposes, by JN Shoolbred. 3. Electric-Light Arithmetic, by RE Day, ME Fourth Edition. Illustrated. 16mo., boards, 166 pp. (No. 71 Van Nostrand's Science Series.) 50 cents EDGCUMBE, K.
Сторінка 448 - CE) A Pocket-book of Electrical Rules and Tables for the use of Electricians and Engineers.
Сторінка 23 - As a unit of quantity, the international coulomb, which is the quantity of electricity transferred by a current of one international ampere in one second. As a unit of capacity, the international farad, which is the capacity of a condenser charged to a potential of one international volt by one international coulomb of electricity.
Сторінка 23 - ... As a unit of electromotive force, the international volt, which is the electromotive force that, steadily applied to a conductor whose resistance is one international ohm, will produce a current of one international ampere, and which is represented sufficiently well for practical use by \\\% of the electromotive force between the poles or electrodes of the voltaic cell known as Clark's cell, at a temperature of 15° C., and prepared in the manner described in the accompanying specification...
Сторінка 24 - It is nearly filled with the solution, and connected to the rest of the circuit by being placed on a clean copper support to which a binding screw is attached.