Power System Stability Calculator

Calculate swing equation parameters, critical clearing angle, and inertia constant for generator stability.

Generator inertia constant. Steam: 4-10, Hydro: 2-4 MJ/MVA.
MJ/MVA
Mechanical power input (pu).
pu
Maximum electrical power transfer (pu).
pu
Nominal frequency.
Hz

Results

Initial Rotor Angle δ₀-degrees
Critical Clearing Angle-degrees
Angular Momentum M-MJ·s/rad
Natural Oscillation Freq-Hz
References: Kundur — Power System Stability; IEEE C37.106