Key Factors Affecting Transient Stability

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Key Factors Affecting Transient Stability:

1. Generator Inertia: Higher inertia helps resist speed changes, improving stability.

2. Fault Clearing Time: Shorter times reduce disturbance impact, enhancing stability.

3. Excitation System: Fast-responding excitation stabilizes voltage after disturbances.

4. System Strength: High short-circuit capacity supports better stability.

5. Operating Conditions: Generators near max load are more prone to instability.

6. Transmission Reactance: Lower reactance lines improve power transfer and stability.

7. Disturbance Location/Type: Faults closer to generators are more destabilizing.

8. Network Topology: Well-connected systems with redundancy handle disturbances better.

9. Power System Stabilizers (PSS): These devices damp oscillations and improve stability.

10. Governor Response: Quick mechanical adjustments help maintain balance.

11. Renewable Integration: Low-inertia renewables reduce stability, mitigated by storage or synthetic inertia.

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