Title :
Partially conductive filler materials for Roebel crossovers in generator coils
Author :
Schoch, K.F., Jr. ; Jerson, D.D. ; Bennett, A.I. ; Smith, J.D.B. ; Emery, F.T.
Author_Institution :
Sci. & Technol. Center, Westinghouse Electr. Corp., Pittsburgh, PA, USA
Abstract :
The results of this study showed that substituting a partially conducting polyester filler material for insulating polyester filler material can reduce the increase in loss tangent with increasing voltage (i.e. “tip-up”) observed in bars simulating generator coils. Polypyrrole-coated polyester performed better than the conventional insulating material and polyaniline-coated polyester
Keywords :
coils; conducting polymers; dielectric losses; electric generators; machine insulation; machine windings; polymers; Roebel crossovers; generator coils; loss tangent; partially conductive filler materials; polyester filler; polypyrrole-coated polyester; Bars; Coils; Conducting materials; Insulation; Partial discharges; Polymers; Power generation; Resins; Strips; Voltage;
Conference_Titel :
Electrical Insulation, 1994., Conference Record of the 1994 IEEE International Symposium on
Conference_Location :
Pittsburgh, PA
Print_ISBN :
0-7803-1942-7
DOI :
10.1109/ELINSL.1994.401387
