Siemens Aktiengesellschaft

Claus Rohr

Peter Gröppel

Friedhelm Pohlmann

Mario Brockschmidt

Roland Röding

Steffen Lang

Christian Seidel

Peter Groeppel

Martin Johannes

Julia Wirsing

High-voltage insulation systems are simplified and can have a thinner design by the use of an external corona shielding system that may include an electrically conductive PTFE fabric. Thermal conductivity may also be improved.

Material for insulation system, insulation system, external corona shield and an electric machine

A rotor cap for an electric generator, e.g., a high-speed turbogenerator, is disclosed, along with a production method for such rotor cap. The rotor cap is at least partially made of fiber-reinforced plastic material. The rotor cap may have cooling fluid passages, e.g., extending in an axial direction, in the area of the fiber-reinforced plastic material.

Rotor cap for electric generators

By using an electrically conductive PTFE fabric, high-voltage insulation systems are simplified and can be made thinner, also improving the thermal conductivity. The insulation material is in two layers, each with a hydrophobic and a hydrophobic region, and the hydrophobic regions of the layers are opposed.

Two-layer high-voltage insulation system and electrical machine

A rotor end-bell () for an electric generator, the rotor end-bell () being made at least in part of fiber-reinforced plastic. A rotor () and an electric generator (T) have at least one such rotor end-bell (). The end-bell can be advantageously used in high-speed turbo generators.

Rotor end-bell for electric generators

Fewer insulation layers can be used by virtue of using hydrophobic electrically conductive materials around a main insulation around a conductive bar. There are several more layers of conductive and/or non-conductive material.

Growing community of inventors

Mannheim, Germany

Claus Rohr