Siemens Aktiengesellschaft

Christian Meichsner

Peter Gröppel

Dieter Heinl

Igor Ritberg

An insulating system having improved partial discharge resistance includes an insulating tape around a conductor. The tape is a mica tape joined to a carrier. The tape is impregnated with a synthetic resin, and is interspersed with a nanoparticulate filler, present bimodally, in the form of two fractions of the filler differing in particle size and fraction size. An adhesion promoter may be in the resin.

Insulation systems with improved resistance to partial discharge, production method for this

An insulating material and its method of use of insulating material for rotating machines such as motors and generators. The insulating material includes a resin embedded with a filler that is not based only on a monomodal nanoparticle size particle distribution. Radiation erodes the material and is conductive to the formation of in situ protective layers on the body to be insulated.

Insulating material for rotating machines

Disclosed are insulating electric conductors against partial discharge and a method for producing an insulation system having improved partial discharge resistance and such an insulation system. There is an erosion-inhibiting effect of adhesion promoters, such as organic silicon compounds, added to resin when admixing nano particulate fillers. Good results may be attributable to a type of particle wetting of the nano particles as a result of particle wetting with organosilanes. The admixture of adhesion promoters with the resin before the addition of the nano particulate filler provides considerable advantages.

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Buttenheim, Germany

Christian Meichsner