Insulated, gas tight electrical lead conductor

Details Insulated, gas tight electrical lead conductor Insulated, gas tight electrical lead conductor

1990-01-04

1991-05-14

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

174152R, H02K 1100, H01B 1726, H01B 1758

Patent

active

050158953

ABSTRACT:
Method and apparatus for providing electrical insulation and hydrogen leakage resistance functions required on a radial lead portion of a field winding assembly for rotors of hydrogen cooled turbine-generators. A glass cloth tube impregnated with an epoxy resin binder is machined to desired tolerances to provide a controlled interference fit over the radial lead conductor outer surface. A coating of the epoxy resin or insulating varnish may be brushed on the interface surface. The pre-machined insulating tube not only prevents hydrogen gas from entering the rotor bore area, but also electrically insulates the rotor field windings from the rotor shaft.

REFERENCES:
patent: 3524090 (1970-08-01), Sark
patent: 3670092 (1972-06-01), Updyke et al.
patent: 3829546 (1974-08-01), Hunter et al.
patent: 4275263 (1981-06-01), Chino
patent: 4483065 (1984-11-01), Meyer et al.
patent: 4870308 (1989-09-01), Sismour, Jr.

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