Electrical Engineer's Pocket-book (Google eBook)

Front Cover
D. Van Nostrand Company, 1913 - Electrical engineering - 1614 pages
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Contents

Resistance of Aerial Lines and House Circuits
61
F Measurements
62
Measurement of Power in A C Circuits
69
F of Dynamos
75
Measurement of Insulation Resistances
82
Data for B3C Curves Table
89
MAGNETIC PROPERTIES OF IRON
94
Core Losses
98
Eddy Current Factors for Different Core Densities Table
106
Magnetization and Traction of Electromagnets Table
112
Correcting Length of Magnet Coil Table
119
Alternating Current Electromagnets
127
Dnits of Resistance
131
Wire Gauges Table
141
Tensile Strength of Copper Wire Table
156
Underwriters Test of Rubber Covered Wires
161
Special Cables for Car Wiring Table
173
Cambric Insulated Cables Table 178a
188
Aluminum Wire Table
194
Double Galvanized Telegraph and Telephone Wires Table
200
Krupps Resistance Wires Table
206
ELECTROMAGNET8 108
209
Carrying Capacity of Rubber Insulated Cables Table
210
Fusing Effects of Electric Currents
217
Properties of Dielectrics
227
Dielectric Strength of Air
233
PROPERTIES OF CONDUCTORS CARRYING A C CURRENT
236
Self Induction of Iron Wire
240
Inductive Reactance of Solid Iron Wire Table
248
Simple Alternating Current Circuits Definitions
259
DIMENSIONSOFCONDUCTORSFOR DISTRIBUTION SYSTEMS
260
Formulae for Cross Section Weight and Power Loss Table
265
Numerical Examples of Calculations of Wiring Systems
271
Parallel Distribution
277
Determination of Size of Conductors for Parallel Distribution
284
Loss in Sheath of ThreeConductor LeadCovered Cables
293
STANDARD SYMBOLS FOR WIRING PLANS N E C A
299
Cost of Paving per Square Yard in Dolars Table
305
Itemized Cost of Conduit Table
316
CABLE TESTING
321
Testing Joints of Cables
323
Copper Resistance or Conductivity of Cables
330
DIRECTCURRENT DYNAMOS AND MOTORS
334
Fundamentals
336
Armature Windings
342
Balancing the Magnetic Circuits in Dynamos
349
ThreeWire System for Variable Speed Motor Work
354
Commutator and Brushes
362
Dynamo Efficiency
370
Barrel Armature Winding Constants Table
376
TESTS OF DYNAMOS AND MOTORS
378
Strain Tests
382
ALTERNATINGCURRENT MACHINES
404
Alternating Current Armature Windings
410
Synchronizers
416
Synchronizing
421
Rotor Slots for Squirrel Cage Induction Motors Table
427
Dynamo tors
434
Converter Armature Windings
441
STATIC TRANSFORMER
443
Features of Design
447
Efficiencies
453
Testing Transformer
459
Reactance for Alternating Current Arc Circuits
466
Transformer Connections
472
TwoPhase Transformer Connections
473
Grounding the Neutral
479
STANDARDIZATION RULES A I E E
483
Measurement of Resistance
486
Efficiency
493
Location of Transformers
499
Appendices and Tabular Data 623
523
Intrinsic Brightness of Different Sources of Light Table
529
Photometers 634
535
Distribution Curves 640
542
CandleHours Regulation of Lamp Values
546
Tungsten Lamps
553
Nernst Lamp
562
Are Lamps and Arc Lighting
568
Flaming Arc Lamps
574
Candle Power of Arc Lamps
580
ILLUMINATING ENGINEERING 684
584
Intensity of Illumination at Various Points Table
587
Saving by the Use of HighEfficiency Lamps Table
593
General Illumination
599
Correct Use of Light
600
Hours Artificial Light Needed Each Month Table
606
A H Armstrong
612
Equipment Tables
618
Typical Automatic TwoLine Wire NonInterfering Block Signal
624
Standard Pole Line Construction
630
Trolley Wire Suspension
637
Staggering Trolley for Sliding Contact
644
Energy Consumption
652
Power Consumption 25 M P H 35Ton Car Table
658
Acceleration
664
Data for SpeedTime Curve Table
671
Electric Railways C Renshaw
674
Graphical Approximation of Energy for Electric Cars
679
Motor Characteristic Curves
685
Determination of Energy
706
SinglePhase Motor Characteristics
717
Train Log Tables
723
Two Motora v Four Motors per Car Table
729
Copper Wire Fuses for Railway Circuits Table
731
Dimensions of Brill Cars Table
737
Installation of Electric Car Motors
745
Equipment Lists
752
Dimensions of Controllers Table
758
Sprague G E Multiple Unit Control
764
Approximate Rates of Depreciation on Electric Street Railways
770
Welded Joints
778
Calculation of the Overhead Conducting System of Electrio Rail
785
Calculation of Dimensions of Conductors
791
Comparative A C and D C Resistance Trolley and Track per Mile
798
Tenting Rail Bonds
803
Electric Railway Booster Calculations
809
Portable Substations
819
Resistance of Steel Variation with Manganese Table
825
Location of Third Rail
831
Conduit Systems of Electric Railways
839
Testing
882
Methods of Controlling Discharge
889
Installations
897
Strength of Dilute Sulphuric Acid of Different Densities Table
904
Conducting Power of Dilute Sulphuric Acid of Different Strengths
905
H W Young
906
Copper Bar Data Table
911
Equipment of ThreePhase Feeder Panels
917
DirectCurrent Switchboard Panels
924
HydroElectric Generating Station Design
930
Isolation of Conductors i
936
Substation Switchboard Equipments
943
Circuit Breakers
949
Capacity of Circuit Breakers for D C Generators
955
Lever Switches
963
Westinghouse Oil Circuit Breakers
969
Oil Circuit Breaker Controller
975
LIGHTNING ARRESTERS
980
Lightning Arresters for Alternating Current
987
Arresters for High Potential Circuits
993
ELECTRICITY METERS
997
Induction Type Alternating Current Integrating Meters
999
Thomson High Torque SinglePhase Induction Wattmeters
1005
Prepayment Wattmeter
1011
Calibration Data for Westinghouse Integrating Wattmeters Table
1018
Testing Polyphase Meters
1020
Practical Methods of Checking Connections of Polyphase Meters
1026
Per cent Error Table for Fifths of a Second
1032
Action of Meters
1039
TELEGRAPHY
1040
Duplex Loop System
1047
WIRELESS TELEGRAPHY
1055
8kin Effect i0Q1
1061
Electricity Meters j H W Young I William Bradshaw
1069
Receivers
1070
Series and Bridging Systems
1076
Oped Wire Circuits
1082
Classification of Telephone Lines
1088
Transfer Systems
1094
TwoWire System
1101
Limits of Telephonic Transmission
1107
Notes on Cost of Telephone Plant
1108
Common Return Intercommunicating Systems
1114
TwoWire Intercommunicating Telephone Systems
1120
USE OF ELECTRICITY IN U S ARMY
1123
Data Relative to Searchlights Table
1127
ELECTRICITY IN U S NAVY
1153
Typical Results of Tests on Generating Sets Table
1159
Double Dynamo Rooms
1166
S Navy Standards for 100120 Volt Lamps Table
1176
Power System
1183
Testa
1184
Ammunition Hoists
1191
WaterTight Doors
1198
Kange Indicators
1204
Fire Alarms and Call Bells
1210
Electricity In the U S Army Grahame H Powell
1215
Formulas for Alternating Current Flow
1217
THE ELECTRIC AUTOMOBILE
1224
ELECTROCHEMISTRY AND ELECTROMETALLURGY
1229
Resistances of Copper Sulphate Table
1231
Production of Aluminum
1239
Calcium Carbide
1245
XRays Edward Lyndon
1248
Tubes
1249
Fluoroscopy
1255
Electric Heating Cooking Max LoewenthaL E
1257
Comparison between Gas and Electric Rates
1261
Industrial Electric Heating
1269
Fuse Data
1275
LIGHTNING CONDUCTORS
1277
Chimney Protection
1281
Data on Isolated Plants in Residences Table
1287
FOUNDATIONS AND STRUCTURAL MATERIALS
1289
Weight of Flat Rolled Iron Table
1295
Strength of Materials
1302
Transverse Strength
1308
Size and Distance between Floor Beams Table
1315
Masonry
1321
STEAM
1327
Boiler Stays and Braces
1333
Chimney Construction
1339
Fans for Induced Draft
1345
Anthracite Coal Table
1351
Chemical Composition of Petroleum Oils
1357
Solubilities of Scalemaking Materials
1363
Injectors
1370
Saving by Heating Feed Water
1376
Safety Valves
1382
Determination of Moisture in Steam
1394
Quality of Steam Shown by Issuing Jet
1400
Properties of Saturated Stearf Table
1404
Superheated Steam
1413
Protection of SteamHeated Surfaces Table
1421
WroughtIron Welded Steam Gas and Water Pipe Table
1427
Standard Pipe Flanges Table
1433
Summary of Tests of Steam Engines Table
1439
Ejector Condenser Capacities Table 144S
1446
De Laval Steam Turbine
1452
Steam Table
1459
Pressure of Water Table
1465
Flow of Water through an Orifice
1471
Impulse Water Wheel
1480
SHAFTING PULLEYS BELTING ROPEDRIVING
1481
Yearly Expense per H P on Wheel Shaft Table
1484
Table for Laying out Shafting
1486
Table of Horse Power of Transmission Rope
1493
MISCELLANEOUS TABLES
1499
Greek Letters
1505
Specific Heat of Gases and Vapors Table
1511
POWER REQUIRED TO DRIVE MACHINERY
1515
Motor Power for Machine Tools Tables
1519
Power Required for Printing Machinery Table
1525
Material Required for installing Lamps
1531
Lightning Conductors Prof Alex G McAdle
1533
Emergency Braking of Cars 731
1553
Insulating Joints in Mains 861
1561
Surface Insulation 862
1587
Undamped Oscillations 106
1594
Copyright

Common terms and phrases

Popular passages

Page 9 - As a unit of current, the international ampere, which is one-tenth of the unit of current of the CGS system of electro-magnetic 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 accompanying specifications,1 deposits silver at the rate of o.ooi 1 1 8 of a gramme per second.
Page 9 - ... 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 ^2. J of the electromotive force between the poles or electrodes of the voltaic cell known as Clark's cell, at a temperature of 15...
Page 13 - If, however, a great deal of the turpeth mineral is formed it shows that there is a great deal of the acid sulphate present, and it will then be wiser to obtain a fresh sample of mercurous sulphate rather than to try by repeated washings to get rid of all the acid. The free mercury helps in the process of removing the acid, for the acid mercuric sulphate attacks it, forming mercurous sulphate and acid which is washed away.
Page 10 - As the unit of induction, the henry, which is the induction in a circuit when the electro-motive force induced in this circuit is one international volt, while the inducing current varies at the rate of one ampere per second.
Page 500 - Single-Phase. A term characterizing a circuit energized by a single alternating emf Such a circuit is usually supplied through two wires. The currents in these two wires, counted positively outwards from the source, differ in phase by 180 degrees or a half-cycle.
Page 9 - The unit of current shall be what is known as the international ampere, which is onetenth of the unit of current of the centimeter-gramsecond system of electro-magnetic units, and is the practical equivalent of the unvarying current, which, when passed through a solution of nitrate of silver in water...
Page 503 - Diversity factor is the ratio of the sum of the maximum power demands of the subdivisions of any system or parts of a system to the maximum demand of the whole system or of the part of the system under consideration, measured at the point of supply.
Page 10 - It is to be 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.
Page 779 - ... 3. Where any rails on which cars run or any conductors laid between or within three feet of such rails form any part of a return, such part may be uninsulated. All other returns or parts of a return shall be insulated, unless of such sectional area as will reduce the difference of potential between the ends of the uninsulated portion of the return below the limit laid down in Regulation 7. 4. When any uninsulated conductor laid between or within three feet of the rails forms any part of a return,...
Page 780 - Provided that in place of such two earth connections the company may make one connection to a main for water supply of not less than three inches internal diameter, with the consent of the owner thereof and of the person supplying the water, and provided that where, from the nature of the soil or for other reasons, the company can show to the satisfaction of...

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