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Questions and Answers
In polyphase circuits, circuits or systems in which the ac sources operate at the same frequency but different phases are known as?
In polyphase circuits, circuits or systems in which the ac sources operate at the same frequency but different phases are known as?
- Phase-shifted
- Multiphase (correct)
- Polyphase
- Single-phase
What is the connection type shown in the figure for balanced three-phase system?
What is the connection type shown in the figure for balanced three-phase system?
- Y − ∆ connection (correct)
- Star-Delta connection
- Star-Star connection
- Delta-Delta connection
What is the main problem that led to the development of AC systems in the late 1880s?
What is the main problem that led to the development of AC systems in the late 1880s?
- Transmission limitation of DC power
- Inefficiency of DC power
- Generation limitation of DC power
- Consumption limitation of DC power (correct)
What type of system is represented by the figure of the three-phase transmission line?
What type of system is represented by the figure of the three-phase transmission line?
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What limitation of single phase motors led to the necessity of AC systems?
What limitation of single phase motors led to the necessity of AC systems?
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