Abstract:
A power contactor that includes a number of inputs for a number of power sources, a number of outputs for a number of loads, a number of separable contacts for each pair of the number of inputs and the number of outputs, and an electromagnetic coil. The power contactor also includes a control circuit structured to control the electromagnetic coil to cause the number of separable contacts to open or close, and a plurality of plug-in pins. Each of the plug-in pins is for a corresponding one of the number of inputs and the number of outputs, and is structured to plug into a backplane socket. The power contactor also includes an electrically insulating housing electrically insulating each of the plug-in pins from the other the plug-in pins.
Abstract:
A solenoid includes a magnetic frame, a bobbin having a length, a hold coil, a pick up coil having a length, a fixed pole, a movable armature having a length, and a return spring biasing the armature away from the pole. The solenoid includes a pick up state when the armature and the pole are separated by a magnetic gap, and a holding state when the armature and the pole are proximate each other. The pick up coil is wound around the bobbin for a portion of the length of the bobbin and the hold coil is wound around the bobbin for a remaining portion of the length of the bobbin. The length of the pick up coil is about the same as the length of the armature and is less than the length of the bobbin.
Abstract:
The disclosed embodiments aim to improve upon existing multi stage generators for providing power to a load. In particular, embodiments of the invention include a regulator situated between the output of a pilot exciter and the main exciter of a multi stage generator system, the regulator arranged to limit the voltage available to a field current control element which sets the field current supplied to the main exciter.
Abstract:
An electrically controlled switching device (10) includes a support (12), a first contact (16) coupled to the support (12), a second contact (18) coupled to the support (12), an SMA element (20) operably connected with the second contact (18), a sensor (22) positioned on or adjacent to the SMA element (20), and a controller (24) in communication with the sensor (22). The SMA element (20) is configured to transform between a first shape and a different second shape responsive to an electrical pulse heating the SMA element (20) to a transformation temperature. The sensor (22) is configured to detect a detected temperature of the SMA element (20). The controller (24) is configured to control the electrical pulse heating the SMA element (20). The controller (24) receives signals from the sensor (22) indicative of the detected temperature of the SMA element (20).