Abstract: An aircraft includes a fuselage defining a longitudinal axis between a forward end and an aft end. The aircraft includes an electrical system having an electric storage. The electric storage is positioned within the fuselage.

Abstract: A contactor with a rotary actuation system, the contactor including a plurality of switching devices configured to switch a plurality of electrical circuits, a plurality of cam followers each operably coupled to one of the switching devices, wherein each cam follower is configured to actuate a switching device, and a cam mechanism, the cam pivotally attached to a point rotation, the cam having plurality of lobes about its perimeter, the cam in operable communication with each cam follower such that upon rotation of the cam mechanism, each cam follower engages a lobe of the plurality of lobes, it causes each cam follower to actuate the respective switching device. The contactor also includes an actuator connected to the cam, the actuator responsive to a control current and operable to rotate the cam and a controller, the controller operable to supply a control current the actuator.

Abstract: A contactor with a rotary actuation system, the contactor including a plurality of switching devices configured to switch a plurality of electrical circuits, a plurality of cam followers each operably coupled to one of the switching devices, wherein each cam follower is configured to actuate a switching device, and a cam mechanism, the cam pivotally attached to a point rotation, the cam having plurality of lobes about its perimeter, the cam in operable communication with each cam follower such that upon rotation of the cam mechanism, each cam follower engages a lobe of the plurality of lobes, it causes each cam follower to actuate the respective switching device. The contactor also includes an actuator connected to the cam, the actuator responsive to a control current and operable to rotate the cam and a controller, the controller operable to supply a control current the actuator.

Abstract: A contactor with a rotary actuation system, the contactor including a plurality of switching devices configured to switch a plurality of electrical circuits, a plurality of cam followers each operably coupled to one of the switching devices, wherein each cam follower is configured to actuate a switching device, and a cam mechanism, the cam pivotally attached to a point rotation, the cam having plurality of lobes about its perimeter, the cam in operable communication with each cam follower such that upon rotation of the cam mechanism, each cam follower engages a lobe of the plurality of lobes, it causes each cam follower to actuate the respective switching device. The contactor also includes an actuator connected to the cam, the actuator responsive to a control current and operable to rotate the cam and a controller, the controller operable to supply a control current the actuator.

Abstract: A method and system for use with an electric power system includes a monitoring unit to monitor at least one power characteristic, a generator control unit to control at least one generator characteristic, a ground interface unit to receive a ground power input, and a device configuration interface to select at least one of a generator control mode and an external power monitor mode, wherein the device configuration interface selectively engages at least one of the monitoring unit, the generator control unit, and the ground interface unit in response to at least one of the generator control mode and the external power monitor mode.

Abstract: A fuse assembly includes a bus bar fuse and a clip. The bus bar fuse has a leg with a slotted opening. The clip surrounds a portion of the leg. The clip includes a first side having a threaded through-hole and a second side extending from the first side at an angle with respect to the first side. A third side extends from the second side at an angle with respect to the second side. The third side includes a through-hole. The threaded through-hole of the clip provides for captivation of the fastener within the clip when mounting the fuse assembly to the fuse mounting block assembly.

Abstract: A method and system for use with an electric power system includes a monitoring unit to monitor at least one power characteristic, a generator control unit to control at least one generator characteristic, a ground interface unit to receive a ground power input, and a device configuration interface to select at least one of a generator control mode and an external power monitor mode, wherein the device configuration interface selectively engages at least one of the monitoring unit, the generator control unit, and the ground interface unit in response to at least one of the generator control mode and the external power monitor mode.

Abstract: A fuse assembly includes a bus bar fuse and a clip. The bus bar fuse has a leg with a slotted opening. The clip surrounds a portion of the leg. The clip includes a first side having a threaded through-hole and a second side extending from the first side at an angle with respect to the first side. A third side extends from the second side at an angle with respect to the second side. The third side includes a through-hole. The threaded through-hole of the clip provides for captivation of the fastener within the clip when mounting the fuse assembly to the fuse mounting block assembly.

Abstract: Embodiments are directed to powering a hydraulic motor pump by powering the hydraulic motor pump from a main bus when power is available from the main bus, powering the hydraulic motor pump from an auxiliary power unit starter motor controller during a start-up of the hydraulic motor pump when power from the main bus is unavailable, and powering the hydraulic motor pump from a generator different than the auxiliary power unit subsequent to starting-up the hydraulic motor pump.

Abstract: Embodiments are directed to powering a hydraulic motor pump by powering the hydraulic motor pump from a main bus when power is available from the main bus, powering the hydraulic motor pump from an auxiliary power unit starter motor controller during a start-up of the hydraulic motor pump when power from the main bus is unavailable, and powering the hydraulic motor pump from a generator different than the auxiliary power unit subsequent to starting-up the hydraulic motor pump.

Abstract: A blown fuse detector according to an exemplary aspect of the present disclosure includes, among other things a fuse and a resistor in series with a circuit breaker. The circuit breaker and the resistor are in parallel with the fuse and the circuit breaker is configured to trip when the fuse blows.

Abstract: Embodiments are directed to a converter for an aircraft configured to produce constant frequency power from variable frequency power received from a variable speed generator when the aircraft is in flight and to be utilized as a motor drive during taxi operations of the aircraft. Embodiments are directed to determining that an aircraft is on the ground, responsive to determining that the aircraft is on the ground, providing by a converter power to a motor drive to provide taxi operations, determining that the aircraft is in flight subsequent to determining that the aircraft is on the ground, and responsive to determining that the aircraft is in flight, producing by the converter constant frequency power from variable frequency power received from a variable speed generator.

Abstract: An electrical system includes a generator; a generator control unit connected to the generator; and a shunt regulator connected to an excitation output of the generator control unit, wherein the shunt regulator is configured to overload the excitation output of the generator control unit in the event of an overvoltage condition in the electrical system, such that an output voltage of the generator does not exceed a predetermined ceiling voltage during the overvoltage condition.

Abstract: An electrical system includes a generator; a generator control unit connected to the generator; and a shunt regulator connected to an excitation output of the generator control unit, wherein the shunt regulator is configured to overload the excitation output of the generator control unit in the event of an overvoltage condition in the electrical system, such that an output voltage of the generator does not exceed a predetermined ceiling voltage during the overvoltage condition.