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EC&M's Electrical Calculations Handbook

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ISBN-10: 0071360956

ISBN-13: 9780071360951

Edition: 2001

Authors: John Paschal, John Paschal

List price: $54.95
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Description:

Electricians use calculations on the job all day long. This book is a collection of all the essential calculations every electrical professional needs to properly design, install and maintain electrical equipment.
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Book details

List price: $54.95
Copyright year: 2001
Publisher: McGraw-Hill Professional Publishing
Publication date: 12/15/2000
Binding: Paperback
Pages: 435
Size: 5.10" wide x 8.20" long x 1.26" tall
Weight: 1.034
Language: English

Preface
List of Problems
Basic Electrical Working Definitions and Concepts
Voltage as Potential Difference
Current
Resistance
Direct-Current (dc) Voltage Sources
Direct and Alternating Current
dc Voltage
Current Flow in a Resistive Circuit
Current Flow in a Series Resistive Circuit
Voltage Division in a Series Circuit
Power Rating of a Resistor
ac Voltage
ac Circuits with Resistance
ac Phase Angle and Power
Current and Power in a Single-Phase ac Ricuit
Current and Power in a Three-Phase ac Circuit
Inductive Reactance
Capacitive Reactance
Impedance
Three-Phase Systems
Wye-Connected Systems
Delta-Connected Systems
Mathematics for Electrical Calculations, Power Factor Correction, and Harmonics
Changing Vectors from Rectangular to Polar Form and Back Again
Adding Vectors
Multiplying or Dividing Vectors
Solving for Current and Power Factor in an ac Circuit Containing Only Inductive Reactance
Solving for Current and Power Factor in an ac Circuit Containing Both Inductive Reactance and Resistance in Series with One Another
Solving for Current and Power Factor in an ac Circuit Containing Two Parallel Branches That Both Have Inductive Reactance and Resistance in Series with One Another
Solving for Current and Power Factor in an ac Circuit Containing Parallel Branches, One of Which has Inductive Reactance and Resistance in Series with One Another and the Other of Which Has a Capacitive Reactance
Electrical Power in Common ac Circuits
Power Factor Correction to Normal Limits
Real Power (Kilowatts), Apparent Power (Kilovoltamperes), Demand, and the Electrical Utility Bill
Power Factor Correction Systems Design in an Electrical Power System Containing No Harmonics
Power Factor Correction System Design in an Electrical Power System Containing Harmonics
Calculating the Parallel Harmonic Resonance of an Electrical Power System Containing Capacitors
Resulting Values of Adding Harmonic Currents or Voltages
Acceptable Levels of Harmonic Current and Voltage
The Harmonic Current-Flow Model
Effects of Harmonic Current on Transformers
Effects of Harmonic Voltage on Motors
Harmonic Current Flow through Transformers
Harmonic Filters
Harmonics Symptoms, Causes, and Remedies
Conductors
Conductors, Conductor Resistance, Conductor and Cable Impedance, and Voltage Drop
Calculating the One-Way Resistance of a Wire
Calculating the Impedance of a Cable
Calculating Voltage Drop in a Cable
Calculating dc Resistance in a Bus Bar
Calculating Heat Loss in a Conductor
Wires and Cables
Determining Wire Size Given Insulation Type, Circuit Breaker Clearing Time, and Short Circuit Current
Selecting the Proper Insulation for an Environment
Aluminum Conductors
Conductor and Cable Selection
Short-Circuit Calculations
Sources of Short-Circuit Current
The Ability of the Electrical Utility System to Produce Short-Circuit Current
Short-Circuit Contributions of On-Site Generators
Short-Circuit Contributions of Motors
Let-Through Values of Transformers
Let-Through Values of Reactors
Let-Through Power Values of Cables
Sample Short-Circuit Calculation
Generator Sizing Calculations
Sizing a Gas-Turbine Generator Set for a Known Kilowatt Load
Sizing a Reciprocating Engine-Driven Generator Set for a Known Kilowatt Load
Sizing of Generator Feeder Conductors
Grounding
The Functions of Grounding
Calculating the Resistance to Remote Earth of Ground Rods
Grounding-Electrode Conductors
Equipment-Grounding Conductors
Methods of Grounding Systems
Obtaining the System Grounding Point
Lighting
The Lumen Method
The Point-by-Point Method
Indoor Lighting
Lighting Rules of Thumb
Transformers
Three-Phase Transformers
Overcurrent Protection of Transformers
Buck-Boost Autotransformers
Motors
Selecting Motor Characteristics
Calculating Motor Running Current
Calculating Motor Branch-Circuit Overcurrent Protection and Wire Size
Raceways
Raceway Types and Their Characteristics
Overcurrent Devices
Overcurrent Devices: Fuses and Circuit Breakers
Fuses
Circuit Breakers
Medium-Voltage and Special-Purpose Circuit Breakers and Relay Controllers
Circuits for Special Loads
Designing Circuits for Various Electrical Loads
Designing an Electrical System for a Commercial Building
Designing an Electrical System for an Industrial Facility
Electrical Design and Layout Calculations
Straight-Through Pull Box in a Conduit System
Angle Pull Box in a Conduit System
Working Space Surrounding Electrical Equipment
Minimum Centerline-to-Centerline Dimensions of Knockouts to Provide for Locknut Clearance
Electrical Cost Estimating
Electrical Takeoff and Personnel-Hour Cost Estimating
Factoring of Labor Units
Estimate of Project Expense
Engineering Economics Calculations Considering the Time Value of Money
Conversion Calculations
Temperature Conversion Calculations
Frequently Used Conversion Calculations
Multiple Conversion Calculations
Index