is there a practical way of calculating a say 380 volt 1000 kva sychronous alternator phase winding resistance for calculating a short circuit current magnitude?
No, especially since it's the various generator reactances that are important in AC calculations. You might peruse this tech-note to see if what you're really looking for is presented in it.
__________________
“Tell me and I forget. Teach me and I remember. Involve me and I learn.” Ben Franklin.
Good Answers: