Physics · Power Systems
In a load flow analysis of a power system, the slack bus (also called the swing or reference bus) plays a crucial role. Which of the following statements best explains its function?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It maintains reactive power balance across all buses and ensures uniform voltage magnitude throughout the network.
- 2It serves as a node where both active and reactive power are specified while the voltage angle is adjusted automatically.
- 3It provides the reference for the voltage angle and supplies the mismatch between total generation and total demand including system losses.✓
- 4It compensates for impedance variations in transmission lines by controlling transformer tap positions.
Correct answer
It provides the reference for the voltage angle and supplies the mismatch between total generation and total demand including system losses.
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