Physics · Power Systems
In the context of transient stability analysis of a power system, the critical clearing angle is best described as which of the following?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The angular separation at which electrical torque equals mechanical torque under post-fault steady-state conditions.
- 2The maximum rotor angle deviation beyond which the system fails to maintain synchronism following a disturbance, assuming the fault is cleared precisely at this angle.✓
- 3The maximum phase angle between generator internal EMF and terminal voltage during fault conditions before voltage collapse occurs.
- 4The rotor angle corresponding to the synchronous speed at steady-state no-load operation, used as a stability reference point.
Correct answer
The maximum rotor angle deviation beyond which the system fails to maintain synchronism following a disturbance, assuming the fault is cleared precisely at this angle.
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