Siemens Aktiengesellschaft

Siemens Aktiengesell Schaft

Waldemar Kowalski

Christoph Lehmann

Friedhelm Pohlmann

Karlheinz Spiess

Christoph Hermann Richter

Ulrich Ehehalt

Claus-Georg Richter

Ronald Beck

Olaf Fröde

Waldemar Wagenknecht

Herbert Schink

Ralf Nottelmann

Dora Schattauer

An electrodynamic machine includes a housing and a rotor, as well as a neutral point, wherein the neutral point is located inside the housing and the neutral point ends are interconnected by means of shorting bridges, and the shorting bridges are designed such that the neutral point ends inside the generator housing are electrically isolated from each other.

Neutral point of a generator

An electric machine such as for example, an electric generator, is provided having a lock system which enables a monitoring device to be housed in the machine such that the generator is not required to be purged. The machine, which can be filled with a gas, with a housing, wherein a first chamber is arranged on the housing, wherein a first flap valve is arranged between the housing and the first chamber, creating a fluidic connection between said housing and first chamber, and a second chamber which is arranged on the first chamber, wherein a second flap valve is arranged between the first and the second chambers, creating a fluidic connection between said first chamber and second chamber, wherein a monitoring device for inspection purposes is provided in the housing.

Inspection device for a machine

A monitoring system for monitoring an electric machine is provided. A mini-camera for observing the electric machine is arranged inside the electric machine. Moreover, the mini-camera is arranged movably on guide elements, wherein the guide element is designed in such a way that the mini-camera is held in an uncritical parked position during the operation of the electric machine.

Monitoring system for an electric machine

A winding for an electric machine is provided. The electric machine includes conductor bars which are arranged one above the other and each of which has a cooling slot. The conductor bars are designed such that the height of the conductor bars increases in the radial direction and the effective cooling cross-section decreases in the radial direction.

Winding with a cooling channel for an electrical machine

A rotor for a turbo generator is provided. The rotor includes a cylindrical rotor shaft that expands in the center to form a rotor body, grooves introduced into the cylindrical surface of the rotor body, an excitation winding accommodated in the grooves, a feeding duct through which a cooling gas flows, and cooling ducts which penetrate the excitation winding substantially in the radial direction and connect the feeding duct to respective outlets in the cylindrical surface of the rotor body A distribution duct extending in the longitudinal direction of the shaft is arranged in the area of the central longitudinal axis. The feeding ducts are connected to the distribution duct via junction ducts. An admission duct for feeding the cooling gas is provided for each distribution duct.

Rotor for a turbo generator, and turbo generator comprising a rotor

An arrangement having at least two generator bars for a stator of an electrical generator which are electrically connected to one another via a respective bar end is characterized, according to the invention, by the fact that the respective bar ends, which are electrically connected to one another, of the at least two generator bars are braced with respect to one another by means of a tape.

Arrangement with generator bars for a stator of an electrical generator

An oscillation damping system for stator windings is provided which includes a supporting component of an end winding. The supporting component is equipped with damping elements, which are arranged asymmetrically in the circumferential direction in order to suppress excited natural oscillations. Masses or springs and screw-type restraints which connect the supporting component to the stator housing are suitable as damping elements.

Growing community of inventors

Mulheim an der Ruhr, Germany

Waldemar Kowalski