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Be sure to add me to your favorites list! Dear shopper: We hope you'll find our items interesting and useful [All derivative (i.e. change in media; by compilation) work from this underlying public domain/public release, anonimous, or non-UScopyrighted data is COPYRIGHT © The Learning Company* Check the laws of your country. ELECTRICAL SCIENCE FUNDAMENTALS FUNDAMENTAL READING FOR ELECTRICAL AND ELECTRONIC ENGINEERS, TECHNOLOGISTS AND TECHNICIANS The First Law of Electrostatics UNITS OF ELECTRICAL MEASUREMENT System Internationale (SI) Metric System METHODS OF PRODUCING VOLTAGE (ELECTRICITY) Polarity of a Single Conductor Magnetic Field and Polarity of a Coil Faraday's Law of Induced Voltage APPENDIX A Metric System and Powers of Ten Figure 5 Electrostatic Field Between Two Charges of Opposite Polarity Figure 6 Electrostatic Field Between Two Charges of Like Polarity Figure 7 Potential Difference Between Two Charged Objects Figure 8 Energy Shells and Electron Quota . Figure 9 Electron Flow Through a Copper Wire with a Potential Difference Figure 10 Potential Difference Across a Conductor Causes a Current to Flow Figure 11 Voltaic Chemical Cell Figure 13 Generator - Electromagnetic Induction Figure 14 Pressure Applied to Certain Crystals Produce an Electric Charge Figure 15 Heat Energy Causes Copper to Give up Electrons to Zinc Figure 16 Producing Electricity from Light Using a Photovoltaic Cell Figure 18 Electron Spinning Around Nucleus Produces Magnetic Field Figure 20 The Law of Magnetic Attraction and Repulsion Figure 21 The Magnetic Field Produced by Current in a Conductor Figure 22 Left-hand Rule for Current Carrying Conductors Figure 24 Left-hand Rule to Find North Pole of an Electromagnet Figure 25 Different Physical Forms of Electromagnets Figure 26 Magnetic Current with Closed Iron Path Figure 27 Typical BH Curve for Two Types of Soft Iron . Figure 28 Hysteresis Loop for Magnetic Materials LIST OF TABLES Table A-1 Base Units of the International Metric System Table A-2 Supplementary SI Units Table A-4 Metric Prefixes Used in Electricity Table A-6 Metric Prefixes Expressed as Powers of 10 Half-Wave Rectifier Circuit Full-Wave Rectifier Circuit Temperature Coefficient of Resistance VOLTAGE POLARITY AND CURRENT DIRECTION Conventional and Electron Flow Applying Kirchhoff's Voltage Law Series-Parallel Circuit Analysis Y and Delta Network Calculation Figure 1 Basic Chemical Battery Figure 3 Production of a DC Voltage Using a Thermocouple Figure 8 Bridge Rectifier Circuit Figure 18 Resistance in a Series Circuit Figure 19 Voltage Drops in a Series Circuit Figure 20 Voltage Total in a Series Circuit Figure 21 Example 1 Series Circuit Figure 22 Example 2 Series Circuit Figure 23 Example 1 Parallel Circuit Figure 24 Example 2 Parallel Circuit Figure 25 Example 3 Parallel Circuit Figure 26 Equivalent Resistance in a Parallel Circuit Figure 27 Total Resistance in a Parallel Circuit Figure 28 Example Parallel Circuit Figure 30 Current Division Example Circuit Figure 33 Using Kirchhoff's Voltage Law to find Current with one Source Figure 34 Using Kirchhoff's Voltage Law to find Current with Multiple Battery Sources Figure 35 Illustration of Kirchhoff?s Current Law Figure 36 Using the Current Law Figure 37 Example Circuit for Loop Equations Figure 38 Assumed Direction of Current Flow Figure 40 Applying Voltage Law to Loop 1 Figure 41 Applying Voltage Laws to Outer Loop Figure 42 Applying Current Law to Junction Figure 44 Circuit for Node Analysis Figure 45 Node - Voltage Analysis Figure 46 Redrawn Circuit Example Figure 48 p (pi) or D (delta) Network Figure 52 Steps to Simplify Redrawn Circuit Figure 54 Open Parallel Circuit - Total Figure 55 Open Parallel Circuit - Branch Figure 57 Shorted Parallel Circui Table 1 Properties of Conducting Materials Table 2 Temperature Coefficients for Various Materials Capacitors in Series and Parallel Capacitors in Series and Parallel Figure 5 Inductors in Parallel Figure 6 DC Current Through an Inductor Figure 8 Voltage Applied to an Inductor Figure 9 Inductor and Resistor in Parallel Figure 10 Capacitor and Symbols Figure 11 Charging a Capacitor Figure 12 Discharging a Capacitor Figure 13 Capacitors Connected in Series Figure 14 Capacitors Connected in Parallel Figure 15 Example 1 - Capacitors Connected in Series Figure 16 Example 2 - Capacitors Connected in Series Figure 17 Example 3 - Capacitors Connected in Parallel . Figure 18 Capacitive Time Constant for Charging Capacitor Figure 19 Capacitive Time Constant for Discharging Capacitor Figure 20 Example - Capacitive Time Constant Discharge and Charging of Lead-Acid Battery Figure 2 Basic Chemical Production of Electrical Power Figure 3 Electron Flow Through a Battery Figure 4 Chemical Action During Discharge . Figure 5 Chemical Action During Charging Figure 6 Voltage and Specific Gravity During Charge and Discharge Figure 7 Cells Connected in Series Figure 8 Cells Connected in Parallel Figure 9 Internal Resistance in a Chemical Cell Figure 10 Internal Voltage Drop Figure 1 AC to DC Conversion with a Commutator Figure 3 Basic Operation of a DC Generator Figure 4 Left-Hand Rule for Generators Figure 5 Commutator Segments and Brushes Figure 6 Commutation in a DC Generator . Figure 7 Varying Generator Terminal Voltage Figure 8 Shunt-Wound DC Generator Figure 9 Output Voltage-vs-Load Current for Shunt-Wound DC Generator Figure 10 Series-Wound DC Generator Figure 11 Output Voltage-vs-Load Current for Series-Wound DC Generator Figure 12 Compounded DC Generator Figure 13 Voltage-vs-Current for a Compounded DC Generator Inducing a Force on a Conductor Shunt-Wound Motor Applications Series-Wound Motor Applications Figure 1 Left-Hand Rule for Current-Carrying Conductors Figure 2 Current-Carrying Conductor in a Magnetic Field Figure 4 Right-Hand Rule for Motors Figure 5 Armature Current in a Basic DC Motor Figure 6 Counterelectromotive Force (CEMF) Figure 8 Torque-vs-Speed for a Shunt-Wound DC Motor Figure 9 Torque-vs-Speed for a Series-Wound Motor Development of a Sine-Wave Output Figure 2 Developing a Sine-Wave Voltage Figure 4 Effective Value of Current Figure 1 Current, Self-Induced EMF, and Applied Voltage in Inductive Circuit Figure 2 Coil Circuit and Phasor Diagram Figure 3 Voltage, Charge, and Current in a Capacitor Figure 4 Circuit and Phasor Diagram Figure 8 Series R-C-L Impedance-Phasor Figure 10 Simple Parallel R-C-L Circuit Power in Parallel R-C-L Circuit Figure 9 Parallel R-C-L Circuit Figure 11 3f AC Power Connections Figure 14 Three-Phase Delta Generator Figure 15 Three-Phase Wye Generator Figure 2 Comparison of DC and AC Generator Outputs Figure 4 AC Generator Nameplate Ratings Figure 5 Stationary Field, Rotating Armature AC Generator Figure 6 Simple AC Generator - Rotating Field, Stationary Armature Figure 7 Stationary Armature 3f Generator Figure 9 Characteristics of a Delta-Connected Generator Figure 11 Characteristics of a Wye-Connected AC Generator Figure 1 Voltage Regulator Block Diagram Single-Phase AC Induction Motors Figure 2 Rotating Magnetic Field Figure 5 Squirrel-Cage Induction Rotor Figure 9 Synchronous Motor Field Excitation Three-Phase Transformer Connections Combinations of Delta and Wye Transformer Connections Transformer Losses and Efficiency Transformer Operation Under No-Load Instrument Potential Transformer Instrument Current Transformer Figure 1 Core-Type Transformer Figure 2 Example 1 Transformer Figure 5 3f Transformer Connections Figure 6 Open Circuit Secondary Figure 7 Polarity of Transformer Coils Figure 8 Auto Transformer Schematic Table 1 Voltage and Current Ratings of Transformers Test Instruments & Measuring Devices OTHER ELECTRICAL MEASURING DEVICES Figure 1 D?Arsonval Meter Movement Figure 2 Electrodynamometer Movement Figure 3 Moving Iron Vane Meter Movement Figure 5 Measuring Circuit Voltage Figure 9 Simple Ohm Meter Circuit Figure 12 Wattmeters in Each Phase Figure 13 Two Wattmeters to Measure 3f Power Figure 14 3f Power Factor Meter Schematic Figure 15 Simple Ohm Meter Ground Detector Figure 16 Ground Detector Lamp Circuit Figure 17 Simple Megger Circuit Diagram Electrical Distribution Systems SYSTEM COMPONENTS AND PROTECTION DEVICES Low-Voltage Air Circuit Breakers Motor Controller Types and Operation 3-Wire, Three-Phase Delta System 4-Wire, Three-Phase Delta System 4-Wire, Three-Phase Wye System Figure 1 One-Line Distribution Diagram Figure 2 Protective Relaying Zones Figure 4 Molded Case Circuit Breaker Figure 5 Cutaway View of Molded Case Circuit Breaker Figure 6 Large Air Circuit Breaker . Figure 7 Simple Circuit Breaker Control Circuit - Breaker Open Figure 8 Simple Circuit Breaker Control Circuit - Breaker Closed . Figure 9 Single Phase Manual Controller Figure 10 Typical Three-Phase Magnetic Controller Figure 11 Magnetic Contactor Assembly Figure 15 Three-Phase to Single-Phase Connections Figure 16 3-Wire Edison Scheme Figure 17 3-Wire, Three-Phase Delta Scheme Figure 19 4-Wire, Three Phase Wye System graphics for illustrative purposes only; may differ from item's pub. domain (please look at our rules and privacy policy) |
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