Cementing Rotors for the Canberra Homopolar Generator

Abstract

A description is given of the cementing together of two 20-ton steel discs to form a composite 40 ton rotor, 139 in. in diameter and 20 in. in thickness, which functions as a two-turn winding of the homopolar generator at the Research School of Physical Sciences of The Australian National Univer­sity. The bond between the steel discs is required to withstand a 200 volt difference in potential and large mechanical forces due to temperature differences and short circuit currents. The bottom rotor pair was cemented first, followed by the top rotor pair. Show more