ELECTRICA!. MOTOR CONTROLS

AMERICAN TECHNICAL PUBLISHERS, INC. HOMEWOOD, ILLINOIS 60430

Gary Rockis Glen A. Mazur

Electrical Tools, Instruments, and Safety 1

Electrical Symbols and Line Diagrams 29

Logic Applied to Line Diagrams 39

AC Manual Contactors and Motor Starters 55

Magnetism and Magnetic Solenoids 67

AC/DC Magnetic Contactors and Motor Starters . . 85

l ' ' • ! Time Delay and Logic 107

8 Control Devices 123

Reversing Motor Circuits 171

10 Power Distribution Systems 201

Solid-State Electronic Control Devices 225

Electromechanical and Solid-State Relays 261

Photoelectric and Proximity Controls 291

Programmable Controllers 323

Reduced-Voltage Starting 355

Accelerating and Decelerating Methods 385

Preventive Maintenance and Troubleshooting 417

Review Question Answers 441

Appendix 447

Glossary 475

Index 487