Angle rotor in PSSE
My result simulation is performed with IEEE 24 bus and fault clearing time 1s. Rotor angle seem still Stable. I don't understand what's happenning. Hope anyone will help me...
I use .sav and .dyr file in this      https://drive.google.com/drive/folder...
rotor angle:                              http://www.upsieutoc.com/image/cr8WUM 
Thank you very much for your help
 