What do you mean by transient and steady-state stability of power system?

Transient stability in a power system refers to the system's ability to maintain synchronism and return to a stable operating condition following a sudden disturbance, such as a fault or a sudden change in load. Steady-state stability, on the other hand, pertains to the system's ability to maintain equilibrium under small disturbances or gradual changes in load while operating in a stable condition. Essentially, transient stability addresses short-term responses to significant events, while steady-state stability focuses on long-term performance under normal operating conditions. Both are crucial for ensuring the reliability and resilience of power systems.