Question

What is the range of the outside diameter of the stator frame of the large hydro-generator?

(a) 3-18 m

(b) 2-18 m

(c) 3.5-18 m

(d) 4-18 m

I had been asked this question by my college professor while I was bunking the class.

This key question is from Construction of Hydro-Generators in division Design of Synchronous Machines of Design of Electrical Machines

Answer 1

The correct answer is (c) 3.5-18 m

Explanation: The minimum value for the outside diameter of the stator frame of the large hydro-generators is 3.5 m. The maximum value for the outside diameter of the stator frame of the large hydro-generators is 18 m.