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Course Outline
Fundamental Concepts of AC Electricity
- Alternating voltage and current
- Resistance, reactance, and impedance
- Active, reactive, and apparent power
- Power factor
Three-Phase Electrical Distribution
- Three-phase circuits
- Wye and delta connections
- Power in three-phase circuits
- Grounding in three-phase circuits
Electrical Load Characteristics
- Demand and energy
- Demand factor
- Coincidence/diversity factor
- Load factor
- Load estimation exercise
Electric Circuit Calculations
- Voltage and current
- Voltage drop
- Power losses
- Power factor and compensation
- Calculation exercises
Voltage Regulation
- Voltage drop in typical circuits
- Acceptable voltage ranges
- Voltage dips
- Control of voltage
Conductors and Cables
- Resistance and reactance
- Thermal capacity
- Voltage drop limitations
- Economical conductor selection exercise
- Economics of power factor compensation exercise
Transformers
- Transformer theory
- Resistance and reactance
- Thermal capacity
- Economical transformer selection and loading exercise
- The per-unit system
Grounding
- Purposes and methods
- "Effectively" grounded
- Ground resistivity
- Equipment ground connections
Overcurrent Protection
- Overloads
- Short circuits
- Short circuit analysis and exercise
- Equipment damage
- Circuit breakers
- Switches
- Fuses
- Time/overcurrent characteristics
- Protective coordination exercise
Insulation Coordination and Overvoltage Protection
- Nature of overvoltages
- Basic impulse level (BIL)
- Properties of insulation
- Line and equipment insulation coordination
- Lightning arresters and application exercise
Distribution Planning
- Planning criteria
- Design criteria
- Operating performance
- Economic performance
- Planning exercise
Distribution Economics
- Economical conductor selection
- Economical transformer selection
- Economics of power factor compensation
- Economics of voltage upgrades
Course Wrap-Up and Evaluation