A support assembly is for an electrical system. The electrical system includes a network protector and a number of disconnect switches coupled to the network protector. The support assembly includes: an insulative mounting member coupled to each of the disconnect switches; a number of base assemblies each including a housing assembly and a stand assembly disposed on the housing assembly, the housing assembly being coupled to the insulative mounting member; and a lifting apparatus disposed on each of the base assemblies. The lifting apparatus moves each of the insulative mounting member and the housing assembly in a direction transverse to the stand assembly.

A support assembly is for an electrical system. The electrical system includes a network protector and a number of disconnect switches coupled to the network protector. The support assembly includes: an insulative mounting member coupled to each of the disconnect switches; a number of base assemblies each including a housing assembly and a stand assembly disposed on the housing assembly, the housing assembly being coupled to the insulative mounting member; and a lifting apparatus disposed on each of the base assemblies. The lifting apparatus moves each of the insulative mounting member and the housing assembly in a direction transverse to the stand assembly.

Systems and methods relating to a compact electric substation for use with charging stations for electric vehicles. A compact substation is equipped with a suitable transformer that steps down the voltage from a mains line from a power utility company to a voltage usable for electric vehicle (EV) charging. The substation is equipped with a distribution component that distributes the lower voltage power to a number of charging stations by way of contactors controlled by a controller. The controller activates/deactivates the relevant contactor to feed power to the relevant charging station based on a user's input at a user terminal. Suitable software in the user terminal ensures that suitable signals are sent to the controller only after the user has set a time frame for how long to charge an EV. The user terminal may be a point of sale terminal that also accepts user payment for the EV recharge.

The invention relates to a wind turbine having an integrated electrical substation, and to a floating offshore wind farm which are optimized in terms of capital costs, economic efficiency, and installation space requirements.

The invention relates to a wind turbine having an integrated electrical substation, and to a floating offshore wind farm which are optimized in terms of capital costs, economic efficiency, and installation space requirements.

A subsea substation system including: an oil-filled water impermeable enclosure; an AC-transformer, and at least one overcurrent device electrically connected to the AC-transformer, the at least one overcurrent device, the AC-transformer, and the electrical connections between them are accommodated in the oil-filled water impermeable enclosure, wherein the enclosure includes thermal zones within the enclosure, wherein the AC-transformer is arranged in a first thermal zone and the overcurrent devices are arranged in a second thermal zone of the enclosure, a thermal layer separate the first thermal zone and the second thermal zone, the at least one thermal layer is configured to allow oil flow between the thermal zones while reducing heat flow between the zones.

A method and system are disclosed for providing electrical power from a utility electric grid to a fracturing operation, and an electrically powered fracturing system. A mobile substation includes at least two transformer units that are operatively coupled to the utility electric grid in a parallel orientation, wherein the transformer units are capable of accessing power from the utility electric grid and stepping down the power for delivery to a switchgear. An electric motor is operatively coupled to a hydraulic fracturing pump and operatively controlled by a variable frequency drive. At least one open air relay cable is operatively coupled between the switchgear and the electric motor and capable of delivering power to the electric motor.

A method and system are disclosed for providing electrical power from a utility electric grid to a fracturing operation, and an electrically powered fracturing system. A mobile substation includes at least two transformer units that are operatively coupled to the utility electric grid in a parallel orientation, wherein the transformer units are capable of accessing power from the utility electric grid and stepping down the power for delivery to a switchgear. An electric motor is operatively coupled to a hydraulic fracturing pump and operatively controlled by a variable frequency drive. At least one open air relay cable is operatively coupled between the switchgear and the electric motor and capable of delivering power to the electric motor.

A method and system are disclosed for providing electrical power from a utility electric grid to a fracturing operation, and an electrically powered fracturing system. A mobile substation includes at least two transformer units that are operatively coupled to the utility electric grid in a parallel orientation, wherein the transformer units are capable of receiving power from the utility electric grid and stepping down the power for delivery to a switchgear. An electric motor is operatively coupled to a hydraulic fracturing pump and operatively controlled by a variable frequency drive. At least one open air relay cable is operatively coupled between the switchgear and the electric motor and capable of delivering power to the electric motor.

A method and system are disclosed for providing electrical power from a utility electric grid to a fracturing operation, and an electrically powered fracturing system. A mobile substation includes at least two transformer units that are operatively coupled to the utility electric grid in a parallel orientation, wherein the transformer units are capable of receiving power from the utility electric grid and stepping down the power for delivery to a switchgear. An electric motor is operatively coupled to a hydraulic fracturing pump and operatively controlled by a variable frequency drive. At least one open air relay cable is operatively coupled between the switchgear and the electric motor and capable of delivering power to the electric motor.