Electrical Diagrams Schematics & Drawings On-Site Training

Course Competencies & Learning Objectives:

• Read and Interpret Drawings and Schematics
• Identify electrical components
• Relate drawings to real world applications
• Use drawings and schematics for Troubleshooting
• Use drawings and schematics to Communicate with others
• Create your own drawings

Course Outline:

I. Electricity Basics Review

• A. Voltage sources
• B. DC
• C. Single Phase AC
• D. Three Phase AC
• E. Current flow
• F. Series Circuit
• G. Parallel Circuit
• H. Power consumption
• I. Watts
• J. Horsepower
• K. Basic Components
• L. Resistor
• M. Capacitor
• N. Inductor
• O. Ground
• P. Earth Ground
• Q. Equipment Ground
• R. Circuit Ground or Common
• S. Electrical formulas
• T. Ohms Law
• U. Power consumption
• V. Resistance
• W. Series
• X. Parallel
• Y. Impedance
• Z. Inductive Reactance
• AA. Capacitive Reactance

II. Introduction to Diagrams

• A. Block Diagrams
  • 1. Purpose
  • 2. Flow
  • 3. One-line Diagrams
• B. Wiring Diagrams
  • 1. Purpose
  • 2. Layout
  • 3. Flow
• C. Schematic Diagrams
  • 1. Purpose
  • 2. Layout
  • 3. Flow
• D. Terminal Diagrams
  • 1. Purpose
  • 2. Terminal Strip Numbering
  • 3. Labels
• E. Electrical Floor Plans
  • 1. Purpose
  • 2. Flow

III. Introduction to Electrical Symbols

• A. Connections (symbols)
  • 1. Wire to wire
  • 2. Wire to device
  • 3. Wire to terminal
• B. NEMA symbols
• C. IEC symbols
• D. Power Section (symbols)
• E. Power source
  • 1. DC
  • 2. Single Phase AC
  • 3. 3 Phase AC
• F. Breakers
  • 1. Thermal
  • 2. Magnetic
  • 3. Disconnects
  • 4. Fuses / Fuse blocks
• G. Contactors
• H. Overloads
• I. Loads
  • 1. Single Phase
  • 2. Three Phase
• J. Grounds
• K. Transformer
• L. Distribution
• M. Load
• N. Control Section (symbols)
  • 1. Transformers
  • 2. Fuses
  • 3. Jumpers
  • 4. Switches
  • 5. Relays
  • 6. Timers
  • 7. Transducers
  • 8. Sensors
  • 9. Circuit Loads
  • 10. Reactive loads
  • 11. Resistive loads
  • 12. Grounds
  • 13. Earth grounds
  • 14. Equipment grounds
  • 15. Circuit commons

IV. Reading and Using Diagrams

• A. Schematic Diagrams
  • 1. Electrical equivalence
  • 2. Layout
  • 3. Flow
• B. Power section
  • 1. Source
  • 2. Current Interruption / Switching – Section
  • 3. Load
• C. Control section
• D. Transformer / Power Supply
• E. Logic Switching
• F. Individual Circuit Loads
• G. Current Limiting Devices
• H. Breakers
• I. Fuses
• J. Overloads
• K. Current Interrupting Devices
• L. Switches
• M. Contactors
• N. Relays
• O. Notes and References
• P. Numbering and labeling
• Q. Components
• R. Wires
• S. Lines / Rungs
• T. Terminals

V. Facility Power Distribution and Electrical Floor Plan

• A. Locating problems
• B. Isolating circuits

VI. Equipment Wiring Diagrams

• A. Component location
• B. Terminal strip identification
• C. Wire color and termination

VII. Ladder Logic Diagrams

• A. Purpose
• B. Symbols
• C. Rung Numbering
• D. Labels
• E. Boolean logic
• F. Qualifying and Permissive circuit

VIII. Practical Applications for Maintenance Technicians

• A. Hydraulic Equipment
• B. Pneumatic Equipment
• C. Variable Frequency Drives
• D. Sensors and Transducers

CEU value: 1.4

Length of Course Instruction: 14 hours