Special motors for driving helium blowers for high-temperature reactors

Reactor design incorporates electric motors in the 'hot zone'. A squirrel-cage induction motor, destined for driving the cooling gas circulator of a high-temperature gas-cooled reactor, is taken as an example in describing the high standards set with respect to technical design and quality. As the stress laid upon reliability, and hence quality control is far in excess of the standards usually applicable to electrical machine design, machines for installation in nuclear power stations must be specially designed. (Auth.)