Transient Stability Calculator

1. Enter the Generator Voltage (E), Bus Voltage (V), Mechanical Power (Pm), Transformer and Transmission line reactances (Xt, X1, X2), Inertia constant (H), System frequency (f), Time step (tStep), Fault occurrence time, and Fault clearing time.

2. Click on "Calculate" to perform transient stability analysis. The pre-fault, during fault, and post-fault power, swing curve, and frequency response will be plotted.

3. Fault condition diagram will also be displayed after calculation.

Note: Stable: The system is stable if the load angle oscillates with finite bounded amplitude.
Unstable: If the load angle starts increasing monotonically upon the inception of a disturbance, the system is Unstable.

Generator Voltage (E, pu):

Bus Voltage (V, pu):

Mechanical Power (Pm, pu):

Transformer Line Reactance (Xt, pu):

Transmission Line 1 Reactance (X1, pu):

Transmission Line 2 Reactance (X2, pu):

Inertia Constant (H):

System Frequency (Hz):

Time Step (s):

Fault Occurrence Time (s):

Fault Clearing Time (s):

Transient Stability Calculator

Fault Condition