UNDERSTANDING CONTROL SYSTEMS
COURSE OUTLINE
REVIEW OF ELECTRICAL THEORY
• Series circuits
• Parallel circuits
• Combination circuits
• Circuit redraws
o Light board circuit exercise
INTRODUCTION TO ALTERNATING CURRENT CIRCUITS
• Sine wave
o Single phase
o Three phase
• Induced voltage
o Counter EMF demonstration
SINGLE PHASE TRANSFORMER THEORY
• Formulas for turns, voltage, and current ratios
• Transformer construction
• Multiple tapped transformers
• Distribution transformers
o Neutral conductor
o Load on the neutral conductor
• Control transformers
• Testing the transformer
• Transformer ratings
• Transformer markings
• Current Transformers
o Ratios
WIRING DIAGRAMS
• Wiring diagram rules
LADDER DIAGRAMS
• Ladder diagram rules
TROUBLESHOOTING CONTROL CIRCUITS
• Using a VOM
• Troubleshooting with power
ON
TESTING FUSES (Crisscross method) for THREE PHASE CIRCUITS
• Voltage Feedback
o Single and three phase circuits
CIRCUIT PROTECTION
• Fuse terminology
• Types and classes of fuses