Electrical Power Systems Technology

(Elle) #1

204 Electrical Power Systems Technology



  1. Calculate turns ratio, voltage ratio, current ratio, and the power
    and efficiency of transformers.

  2. Explain the purpose of isolation transformers, autotransformers,
    and current transformers.

  3. Explain factors that cause losses in transformer efficiency.

  4. Investigate the characteristics of transformers.

  5. Describe the transmission and distribution of electrical power.

  6. Compare underground, overhead, and HVDC power transmission
    systems.

  7. Explain parallel operation of electrical power systems.

  8. Describe ring, radial, and network power distribution systems.

  9. Explain circular mil sizing of copper and aluminum electrical
    conductors.

  10. Calculate cross-sectional area, resistance, or ampacity of round,
    square, or rectangular copper or aluminum conductors.

  11. Describe the types of insulation used for conductors in electrical
    distribution systems.

  12. Describe the following equipment used at substations for
    electrical power distribution:
    High-Voltage Fuses
    High-Voltage Circuit Breakers
    High-Voltage Disconnect Switches
    Lightning Arrestors
    High-Voltage Insulators
    High-Voltage Conductors
    Voltage Regulators

  13. Describe the following types of protective equipment used in
    electrical distribution systems:
    Plug Fuses
    Cartridge Fuses
    Time-Lag Fuses
    Low-Voltage Circuit Breakers
    Protective Relays
    Motor Fault Current Protection
    Overheating Protection
    Undervoltage Protection

  14. Describe the following in relation to electrical power distribution
    systems:
    Feeder Lines

Free download pdf