A 4-pole turbogenerator is rated at 150 MVA, 14 kV and 60 Hz. Its inertia constant is 12 MJ/MVA. If the input of the generator is suddenly increased to 80 MW for a load of 60 MW, the magnitude of the acceleration of the rotor will be _______ (in elect - deg / sec2).
1
132
2
108
3
120
4
123