simulate fault current synchronous generator in simscape

Hello!

I'm looking for help with simulation fault current. I have to do it in simulink (simscape). There i have some questions:

How can i create my synchronous generator? Can it be a three-phase source? If yes, how can I set power of that generator? My transform line need to end with RL load - it is "machine"

Its only studying project so its not very advanced. This is my example what i did: