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 1D. Van Nostrand Company, 1906 |
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Сторінка 2
... cause of considerable trouble and discussion in electric - light engineering , and it therefore receives particular attention in Chapters XV . and XVI . The dynamo being by far the most essential element in electri- cal engineering is ...
... cause of considerable trouble and discussion in electric - light engineering , and it therefore receives particular attention in Chapters XV . and XVI . The dynamo being by far the most essential element in electri- cal engineering is ...
Сторінка 33
... cause any damage . A high - potential system is one in which the voltage between any two wires is " over 550 volts and less than 3500 volts , " according to the National Electrical Code . These figures are sometimes modified locally ...
... cause any damage . A high - potential system is one in which the voltage between any two wires is " over 550 volts and less than 3500 volts , " according to the National Electrical Code . These figures are sometimes modified locally ...
Сторінка 35
... cause of regret to all concerned . The Size of Plant . This the engineer must definitely know before making any exact plans or calculations . It is usually ascertained in terms of the number and distances of lamps that will be required ...
... cause of regret to all concerned . The Size of Plant . This the engineer must definitely know before making any exact plans or calculations . It is usually ascertained in terms of the number and distances of lamps that will be required ...
Сторінка 45
... cause of great annoyance , or eyen actual damage . This question is discussed in the next chapter , under the head of " Foundations . " The obtaining of a good draught for the boiler fires is another matter which must not be ignored in ...
... cause of great annoyance , or eyen actual damage . This question is discussed in the next chapter , under the head of " Foundations . " The obtaining of a good draught for the boiler fires is another matter which must not be ignored in ...
Сторінка 47
... cause vibration , and simply require a sufficiently strong support to carry the dead weight . The arrangement adopted , therefore , in many of the modern stations has been to place the boilers upon the second or even third story and ...
... cause vibration , and simply require a sufficiently strong support to carry the dead weight . The arrangement adopted , therefore , in many of the modern stations has been to place the boilers upon the second or even third story and ...
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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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alternating current amount ampere-hours ampere-turns amperes apparatus arc lamps armature core arrangement belt boiler booster brushes carbon cause cell cent centimeters centrifugal force charge circuit cloth coal coils commutator condensation conductors connected consists construction copper cut-off cylinder diameter direct direct current direct-current discharge dynamo effect efficiency Elec electric lighting electric-lighting electrolyte employed fact feet field-magnet flux density fly-wheel force fuel gas-engine governor heat hence incandescent lamps inch inductors insulation iron latter lines load machine machinery magnetic magnetic circuit mechanical mercurous sulphate motors multipolar obtained operated ordinary pipe piston plant plates pole-pieces poles practically pressure produced pulley represented in Fig resistance revolutions per minute ring shaft short-circuited shown in Fig shunt speed square steam steam-engine storage battery stroke sulphate supply surface switch temperature tion tubes turbine usually valve voltage voltmeter volts water-tube boilers weight wheel winding wire zinc sulphate
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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.
Сторінка 483 - Illustrated. 8vo, cloth. $2.00. Elements of Electric Lighting, including Electric Generation, Measurement, Storage, and Distribution. Tenth Edition, fully revised and new matter added. Illustrated. 8vo, cloth. $1.50. Power Transmitted by Electricity and Applied by the Electric Motor, including Electric Railway Construction.
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...
Сторінка 483 - ABBOTT, AV The Electrical Transmission of Energy. A Manual for the Design of Electrical Circuits.