EC&Ms Electrical Calculations Handbook

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McGraw Hill Professional, 15. 12. 2000. - 435 страница
The most frequently used electrical calculations--worked out in an instant-access format Edited by John Paschal, EC;M’s Electrical Calculations Handbook brings you the expertise of two of the industry's most respected names: McGraw-Hill and EC;M (Electrical Construction ; Maintenance) Magazine--the premiere magazine for electrical design, construction, and maintenance. This handy guide packs all the essential calculations every electrical professional needs to properly design, install, and maintain electrical equipment, from wiring and circuits, to batteries and generators. You get basic electrical working definitions and concepts, and coverage of three-phase systems; math for electrical calculations, power factor correction, and calculations for harmonics; conductors; short-circuit calculations; grounding; lighting; transformers; motors; raceways; overcurrent devices; circuits for special loads; electrical design and layout calculations; electrical cost estimating; and conversion calculations.
 

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Basic Electrical Working Definitions and Concepts
1
ThreePhase Systems
55
Mathematics for Electrical Calculations
69
Solving for Current and Power Factor in an ac Circuit
75
Power Factor Correction to Normal Limits
87
Power Factor Correction System Design in an Electrical Power
93
System Containing Harmonics
104
Acceptable Levels of Harmonic Current and Voltage
110
Grounding
205
Lighting
221
Transformers
251
Motors
285
Raceways
311
Overcurrent Devices
319
Circuits for Special Loads
335
Electrical Design and Layout Calculations
357

Effects of Harmonic Voltage on Motors
116
Harmonics Symptoms Causes and Remedies
122
Calculating the Impedance of a Cable
133
ShortCircuit Calculations
179
Generator Sizing Calculations
195
Electrical Cost Estimating 371
5
Conversion Calculations 425
7
Index 433
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