204 Electrical Power Systems Technology
- Calculate turns ratio, voltage ratio, current ratio, and the power
and efficiency of transformers. - Explain the purpose of isolation transformers, autotransformers,
and current transformers. - Explain factors that cause losses in transformer efficiency.
- Investigate the characteristics of transformers.
- Describe the transmission and distribution of electrical power.
- Compare underground, overhead, and HVDC power transmission
systems. - Explain parallel operation of electrical power systems.
- Describe ring, radial, and network power distribution systems.
- Explain circular mil sizing of copper and aluminum electrical
conductors. - Calculate cross-sectional area, resistance, or ampacity of round,
square, or rectangular copper or aluminum conductors. - Describe the types of insulation used for conductors in electrical
distribution systems. - 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 - 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 - Describe the following in relation to electrical power distribution
systems:
Feeder Lines