Electrically conductive prepreg for suppressing corona discharge

Details Electrically conductive prepreg for suppressing corona discharge Electrically conductive prepreg for suppressing corona discharge

1994-05-16

1997-05-27

Kincaid, Kristine L.

Electricity: conductors and insulators

Insulators

Special application

174140R, 336 84C, 336 96, 336205, H01F 2734

Patent

active

056334770

ABSTRACT:
A resin-rich electrically conductive felt material is described. The described conductive felt can be used to suppress corona discharge in high voltage generator coils. The conductive felt is prepared by treatment with electrically conducting polymers, such as polyaniline and polypyrrole, and resistivity values ranging from 4,000 to 100,000 ohms may be obtained. This treated felt can be readily impregnated with thermoset resins, such as epoxies, to provide flexible prepregs suitable for coil bonding applications in turbine generators.

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