An auxiliary generator connection, a method of operating and a system are disclosed. The auxiliary generator connection includes at least one first conductor coupled to a first portion of the electrical utility distribution network. At least one second conductor is coupled to a second portion of the electrical utility distribution network. A t-type connector is coupled between the at least one first conductor and the at least one second conductor. A switch is coupled between the at least one second conductor and the t-type connector. A generator conductor is electrically coupled at a first end to the t-type connector. A generator plug is coupled to a second end of the generator conductor opposite the t-type connector.

Disclosed herein is a tidal current power generator having an underwater connecting structure, which is capable of ensuring the promptness, correctness and safety of an electrical coupling without support by a diver. The tidal current power generator includes: a nacelle in which a turbine rotor and a power generator are installed; and a tower which is coupled to or decoupled from the nacelle. A plug connector is included in the tower. The nacelle includes a hollow tube forming a passage in which the plug connector is inserted and being filled with a nonconductive filler, a socket connector coupled to the inside of the hollow tube and connected to the power generator, and a check valve which is installed in the passage of the hollow tube and prevents the filler from escaping from the hollow tube when the plug connector is not inserted in the hollow tube.

Disclosed herein is a tidal current power generator having an underwater connecting structure, which is capable of ensuring the promptness, correctness and safety of an electrical coupling without support by a diver. The tidal current power generator includes: a nacelle in which a turbine rotor and a power generator are installed; and a tower which is coupled to or decoupled from the nacelle. A plug connector is included in the tower. The nacelle includes a hollow tube forming a passage in which the plug connector is inserted and being filled with a nonconductive filler, a socket connector coupled to the inside of the hollow tube and connected to the power generator, and a check valve which is installed in the passage of the hollow tube and prevents the filler from escaping from the hollow tube when the plug connector is not inserted in the hollow tube.

Systems and methods for connecting power cables to downhole equipment such as ESPs using side-exit (radial) connections. In one embodiment, a system includes an electric drive coupled by a power cable to an ESP. The electric drive is positioned at the surface of a well with the power cable coupled to it. The power cable extends into the well bore and is coupled to the downhole equipment which is positioned in the well bore. The power cable has a connector with a first set of radially oriented terminals (the terminals are perpendicular to the conductors of the power cable). These terminals engage a second set of terminals that are installed in the downhole equipment. The radial orientation of the terminals of the connector and downhole equipment allow the power cable to remain axially oriented, thereby facilitating engagement of the terminals and requiring less annular space in the well bore.

A connector unit for connecting at least two cables includes a male part, a female part, and a shuttle piston. The shuttle piston includes at least one magnetic connecting device for establishing a magnetic connection between the shuttle piston, and at least one magnetic connecting aid of the male part and at least one latching structure for establishing a force-fitting connection between the shuttle piston and the female part. The male part includes the magnetic connecting aid for interaction with the magnetic connecting device of the shuttle piston for establishing the magnetic connection between the shuttle piston and the male part, and an interaction area for interaction in a force-fitting manner with at least one backing latch of the female part. The female part includes the backing latch for establishing the force-fitting connection and for interacting at least with the interaction area of the male part in a force-fitting manner.

A connector unit for connecting at least two cables includes a male part, a female part, and a shuttle piston. The shuttle piston includes at least one magnetic connecting device for establishing a magnetic connection between the shuttle piston, and at least one magnetic connecting aid of the male part and at least one latching structure for establishing a force-fitting connection between the shuttle piston and the female part. The male part includes the magnetic connecting aid for interaction with the magnetic connecting device of the shuttle piston for establishing the magnetic connection between the shuttle piston and the male part, and an interaction area for interaction in a force-fitting manner with at least one backing latch of the female part. The female part includes the backing latch for establishing the force-fitting connection and for interacting at least with the interaction area of the male part in a force-fitting manner.

A terminal connector or two-part connector comprising male and female parts having respective contact pins and contact receivers (10,15) of a construction generally known in the art. In the body (1) of the or at least one part, closely juxtaposed a terminal block (9), there is provided a conductor management device (8) adapted to receive conductors (12) as they are unbundled from the connected cable or reel and support the unbundled or individual conductors through the transitional region of the connector part to where they are secured at the terminal block (9). The conductor management device (8) has through body apertures defining each conductor path (14) to align each conductor with its respective receiver (13). In a different configuration, the conductor management device provides strain relief to the conductors, provides support and conductor rigidity, provides a locking means and is a bore modifier.

A terminal connector or two-part connector comprising male and female parts having respective contact pins and contact receivers (10,15) of a construction generally known in the art. In the body (1) of the or at least one part, closely juxtaposed a terminal block (9), there is provided a conductor management device (8) adapted to receive conductors (12) as they are unbundled from the connected cable or reel and support the unbundled or individual conductors through the transitional region of the connector part to where they are secured at the terminal block (9). The conductor management device (8) has through body apertures defining each conductor path (14) to align each conductor with its respective receiver (13). In a different configuration, the conductor management device provides strain relief to the conductors, provides support and conductor rigidity, provides a locking means and is a bore modifier.

An apparatus comprising an electrically powered device. The apparatus comprises a functional device, a device electrical terminal, a casing, a power supply and a casing electrical terminal. The apparatus is characterised in that corresponding physical retaining means are provided on the device and the casing respectively, to ensure that physical connection between the device electrical terminal and the casing electrical terminal is maintained, during use of the apparatus. The physical retaining means of the apparatus automatically engages when the device is moved into the desired position relative to the casing.

An apparatus comprising an electrically powered device. The apparatus comprises a functional device, a device electrical terminal, a casing, a power supply and a casing electrical terminal. The apparatus is characterised in that corresponding physical retaining means are provided on the device and the casing respectively, to ensure that physical connection between the device electrical terminal and the casing electrical terminal is maintained, during use of the apparatus. The physical retaining means of the apparatus automatically engages when the device is moved into the desired position relative to the casing.