1. There are many places in our automation department. If there are so many places this year, with your grades (I wonder what your credit score is? ) it should be almost the same, and it should even be quite confident ~
Last year, the interview of automation department was very flexible. There is no written test. The teacher will ask some questions like "Your understanding of linear algebra" and some questions about the information on your resume/application form, so be sure to study your application form carefully without any loopholes!
3. It is not difficult to switch the motor system. Personally, I think it is even a little simpler than an automated system.
4. preparation for changing departments: since the subject you want to change belongs to electricity, you must give convincing reasons if you want to convince the interview teacher. Why do you like electricity? Personally, I suggest taking or auditing their professional courses such as Electric Power Institute next semester.
5. Know yourself and know yourself, think more about teachers, counselors, brothers and sisters who have successfully transferred to the department in the past, and ask the students who want to transfer to these two departments like you about their credit scores/rankings.
That's all I can think of. Wish you success!