A pinless connector for subsea data communications comprises contactless connectivity data transmitter coupler, comprising one or more first solid state contactless connectivity data transmitters, and contactless connectivity data receiver coupler, comprising one or more first solid state contactless connectivity data receivers, which can allow for rapid collection and/or download data from subsea vehicles or sensors without having to plug in an external connector or physically remove the data recorder from the unit. Typically, these are operative at a low power level, e.g. less than or around 50 milliwatts, at an extremely high data transfer rate or around 5 GBits/second. The connectors may be incorporated into a subsea system comprising two subsea devices. A slip ring system may similarly comprise one or more first solid state contactless connectivity data transmitters and one or more first solid state contactless connectivity data receivers.

Systems and methods to mitigate electrical voltage on a rotating shaft in an oil rich environment exposed to a viscous fluid or immersed in oil are disclosed. An example grounding brush assembly includes a plurality of conductive filaments configured to extend through the viscous medium surrounding the rotating shaft to be in electrical contact with the rotating shaft when the brush assembly is disposed proximate the shaft.

Systems and methods to mitigate electrical voltage on a rotating shaft in an oil rich environment exposed to a viscous fluid or immersed in oil are disclosed. An example grounding brush assembly includes a plurality of conductive filaments configured to extend through the viscous medium surrounding the rotating shaft to be in electrical contact with the rotating shaft when the brush assembly is disposed proximate the shaft.

A grounding rope assembly for electrically grounding a rotatable conductive shaft of a dynamo-electric machine. The assembly includes a grounding rope member including a plurality of conductive wires extending along the length of the grounding rope member and one or more discrete fixation points intermediate the first and second ends of the grounding rope member. Two or more of the plurality of conductive wires are affixed together at each of the discrete fixation points.

A grounding rope assembly for electrically grounding a rotatable conductive shaft of a dynamo-electric machine. The assembly includes a grounding rope member including a plurality of conductive wires extending along the length of the grounding rope member and one or more discrete fixation points intermediate the first and second ends of the grounding rope member. Two or more of the plurality of conductive wires are affixed together at each of the discrete fixation points.

The current diverter rings and bearing isolators serve to dissipate an electrical charge from a rotating piece of equipment to ground, such as from a motor shaft to a motor housing. One embodiment of the current diverter is substantially arc shaped with a plurality of radial channels extending there through. A conductive assembly may be positioned in each radial channel such that a contact portion of the conductive assembly is positioned adjacent a shaft passing through the center of the current diverter ring. The arc-shaped body may be particularly useful during installation over certain existing shafts.

The current diverter rings and bearing isolators serve to dissipate an electrical charge from a rotating piece of equipment to ground, such as from a motor shaft to a motor housing. One embodiment of the current diverter is substantially arc shaped with a plurality of radial channels extending there through. A conductive assembly may be positioned in each radial channel such that a contact portion of the conductive assembly is positioned adjacent a shaft passing through the center of the current diverter ring. The arc-shaped body may be particularly useful during installation over certain existing shafts.

A brush assembly including a housing having a first opening, a second opening, and an interior space defined between the first opening and the second opening. The brush assembly further includes a removable cover at least partially received within the interior space and covering the first opening, and a brush at least partially received within the interior space and extending from the second opening. The brush is operable to move between an extended position and a retracted position. More of the brush is received within the interior space in the retracted position than in the extended position. The brush assembly further includes a contact received within a mounting aperture formed in the removable cover. The contact is electrically connected to the brush. The brush assembly also includes a spring coupled to the removable cover. The spring biases the brush into the extended position.

A brush assembly including a housing having a first opening, a second opening, and an interior space defined between the first opening and the second opening. The brush assembly further includes a removable cover at least partially received within the interior space and covering the first opening, and a brush at least partially received within the interior space and extending from the second opening. The brush is operable to move between an extended position and a retracted position. More of the brush is received within the interior space in the retracted position than in the extended position. The brush assembly further includes a contact received within a mounting aperture formed in the removable cover. The contact is electrically connected to the brush. The brush assembly also includes a spring coupled to the removable cover. The spring biases the brush into the extended position.

A shaft current collector for a shaft assembly has a shaft and a machine part surrounding the shaft. The shaft current collector has an electrically conductive ring for arrangement on the shaft so as to electrically contact the same. The ring has an engagement recess which is arranged so as to extend axially relative to the central axis of the ring. A blocking element can be secured on the machine part relative to the shaft. When the shaft current collector is in the installed state, the blocking element engages into the engagement recess of the ring such that, as the shaft rotates, a rotation of the ring is restricted by the blocking element while the ring is electrically conductively contacted by the blocking element. A shaft assembly may have such a shaft current collector.