Question

What is the core length and the shaft length of a 500 MW turbo alternator?

(a) 5 m, 12 m

(b) 6 m, 15 m

(c) 3 m, 10 m

(d) 4 m, 13 m

I have been asked this question during an internship interview.

I would like to ask this question from Construction of Turbo-Alternators topic in chapter Design of Synchronous Machines of Design of Electrical Machines

Answer 1

Correct answer is (a) 5 m, 12 m

For explanation I would say: The core length of a 500 MW turbo alternator is 5 m. The shaft length of the 500 MW turbo alternator is 12 m.