A generator grounding module selectively mountable to a support bracket and selectively engageable with a rotor includes a plate member movable along a mounting axis to selectively attach the generator grounding module to the support bracket, the plate member movable between a first position and a second position in which the plate member is substantially fixed with respect to the support bracket. A mounting block is movable along the mounting axis with respect to the plate member, a grounding strap is coupled to the mounting block and is movable between a disengaged position and an engaged position in which the grounding strap contacts the rotor, and a biasing assembly is connected to the plate member and the mounting block and operable to bias the mounting block along the mounting axis toward the plate member, wherein the plate member is fixedly attached to the support bracket when in the second position and the biasing assembly biases the grounding strap into the engaged position.

A power supply apparatus for a field winding motor. A brush is disposed is a holder. An armature is connected to the brush and disposed in the holder. A slip ring is electrically connected to or disconnected from the brush. A support spring surrounds the brush between the slip ring and the armature. A coil is disposed outside of the holder so as to overlap the support spring and the armature. A first power terminal is connected to the brush and supplies a first driving current. A second power terminal is connected to the coil and supplying a second driving current.

A power supply apparatus for a field winding motor. A brush is disposed is a holder. An armature is connected to the brush and disposed in the holder. A slip ring is electrically connected to or disconnected from the brush. A support spring surrounds the brush between the slip ring and the armature. A coil is disposed outside of the holder so as to overlap the support spring and the armature. A first power terminal is connected to the brush and supplies a first driving current. A second power terminal is connected to the coil and supplying a second driving current.

The invention relates to a carbon holder plate for an electric motor, comprising a guide element for a carbon brush, wherein the carbon brush is longitudinally displaceable arranged in the guide element in the direction of a longitudinal axis of the carbon brush, a first end face of the carbon brush, which is designed to rest against a collector of the electric motor, a second end face located opposite the first end face, against which in an operational state, a spring element rests under spring tension in order to press the carbon brush in the direction of the collector, and a device for positioning the first end face of the carbon brush in a mounting position of the carbon holder plate at a distance from the collector.

The invention relates to a carbon holder plate for an electric motor, comprising a guide element for a carbon brush, wherein the carbon brush is longitudinally displaceable arranged in the guide element in the direction of a longitudinal axis of the carbon brush, a first end face of the carbon brush, which is designed to rest against a collector of the electric motor, a second end face located opposite the first end face, against which in an operational state, a spring element rests under spring tension in order to press the carbon brush in the direction of the collector, and a device for positioning the first end face of the carbon brush in a mounting position of the carbon holder plate at a distance from the collector.

The present invention refers to a liftable brush holder system (9) able to operate as fixed, comprising a motor (1) that drives a speed reducer (2) that drives a shaft (3) that moves a disc with eccentric slot (4), wherein the disk with eccentric slot (4) closes the short-circuit bushing (6) and independently moves the sides (9r, 9l) of the brush holder (9). The present invention further refers to a rotating electric machine equipped with a system according to the invention.

An example brush holder assembly for positioning a conductive carbon brush in contact with a conductive surface of an electrical device is disclosed. In some aspects, the example brush holder assembly includes a brush holder including a backbone extending therefrom and a removable handle. Further, the removeable handle includes a frame releasably engaged with the backbone and a grip secured to the frame. In some aspects, the brush holder assembly includes a removable catch arm removably coupled to an upper beam and a lower beam of the brush holder assembly. Removal of the catch arm allows the upper beam to be disassembled from the lower beam.

Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder.

Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder.

The invention provides a wind turbine including a nacelle, a rotor having at least one blade attached to a hub, and an electrical supply structure for supplying electrical power from the nacelle to the rotor. The rotor is rotatably connected to the nacelle about an axis of rotation. The supply structure comprises a switch which has a connected mode in which the nacelle and the rotor are electrically connected, and a disconnected mode in which the nacelle and the rotor are electrically disconnected. Furthermore, the switch is adapted to change from the disconnected mode to the connected mode when the rotor does not rotate.