Abstract: An electronic device including a component and a light circuit structured to detect light. The light circuit is structured to output a detection signal in response to detecting light and the detection signal is used to wake up or communicate with the component.

Abstract: An energy harvesting system can include an electrical conductor through which primary power flows. The system can also include an instrument transformer disposed around the electrical conductor, where the instrument transformer includes a secondary inductor, where the instrument transformer creates a first transformed power through the secondary inductor using the first power. The system can also include at least one tuning capacitor electrically coupled in parallel to the secondary inductor. The system can further include at least one switch coupled in series with the at least one tuning capacitor, where the at least one switch has an open position and a closed position. The system can also include an electrical load electrically coupled to the secondary inductor and the at least one switch, where the at least one tuning capacitor modifies the first transformed power when the at least one switch is in the closed position.

Abstract: A system for monitoring one or more aspects of a fuse tube assembly of a fuse cutout comprises: a housing structured to be disposed adjacent to, and coupled to the fuse tube assembly; a power source disposed in the housing; a processing unit disposed in the housing and electrically coupled to the power source; and a motion detecting unit disposed in the housing and electrically coupled to the processing unit, the motion detecting unit being structured to detect one or both of position or movement of the housing.

Abstract: An electronic device including a component and a light circuit structured to detect light. The light circuit is structured to output a detection signal in response to detecting light and the detection signal is used to wake up or communicate with the component.

Abstract: An energy storage device heating system includes an energy storage device, a power supply structured to generate a source of harvested energy by harvesting energy from a power source, a heater disposed proximate to the energy storage device and structured to use the harvested energy to generate heat, a charging unit structured to use the harvested energy to charge the energy storage device, a selection circuit structured to selectively electrically connect the source of harvested energy to the charging unit or the heater, and a control unit including a selection control module structured to control the selection circuit to switch between electrically connecting the source of harvested energy to the charging unit and electrically connecting the source of harvested energy to the heater.

Abstract: A power line monitoring device is mounted to a power line. The device includes circuitry for monitoring the power line and communicating information regarding the power line. A ground reference point of the circuitry is electrically coupled to the power line. Therefore, the monitoring device, including its circuitry, has substantially the same voltage potential as the power line. Accordingly, there is a substantially equalized or uniform electric field around the device. The substantially equal voltage potential and electric field allow communications with the monitoring device to have reduced noise and interference, as compared to other devices that have different voltage potentials than their corresponding power lines. A pad of semi-conductive material may be disposed between the power line and the electrical conductors to slow a rate of change of the voltage potential of the device circuitry when mounting the device to the power line, thereby minimizing risk of corona discharge.

Abstract: A harvesting and measurement device is operable in at least a normal operation mode, a demand measurement mode, and a fault measurement mode. In the normal operation mode, the device is able to harvest energy from an associated power line and monitor current and voltage conditions through a lower power circuit. In the demand measurement mode, harvesting elements of the circuit are disabled so as not to interfere with accuracy of demand current measurements. In the fault measurement mode, one or more Hall sensors are activated such that high currents can be accurately measured.

Abstract: An apparatus is provided for securing to and collecting power from an electrical conductor, including a current transformer comprising a core and an electrical winding that receives an induced current from magnetic flux generated according to alternating current present on the electrical conductor, and a clamping mechanism that attaches the apparatus to the electrical conductor. According to various aspects, apparatus may include a housing that encloses circuitry for monitoring conditions of the electrical conductor, where the circuitry includes one or more sensors, and wireless communications circuitry.

Abstract: Systems, methods, and devices for providing a luminaire inductively coupled to a power transmission line include a current transformer containing a plurality of tap points, and a plurality of tap switches that can be coupled to the tap points. The plurality of tap switches are connected to a microcontroller. Further, the systems, methods, and devices include an energy storage device, and LED light source(s). In some instances the current transformer powers the LED light source(s), and in other instances, the current transformer charges the energy storage device and the energy storage device in turn powers the LED light source(s), and in yet other instances, a combination of powering directly from the current transformer or energy storage device may be switched back and forth depending on a variety of parameters.

Abstract: An apparatus is provided for securing to and collecting power from an electrical conductor including a wire clamp that clamps to and secures the apparatus to the electrical conductor, a current transformer (“CT”) that clamps to the electrical conductor and collects power from the electrical conductor, and a housing including a cavity that encloses circuitry associated with the apparatus. According to various aspects, the circuitry may include one or more sensors and wireless communications circuitry, and the CT may include a core and an electrical winding that receives an induced current from magnetic flux generated according to alternating current present on the electrical conductor.

Abstract: An apparatus is provided for securing to and collecting power from an electrical conductor, including a current transformer comprising a core and an electrical winding that receives an induced current from magnetic flux generated according to alternating current present on the electrical conductor, and a clamping mechanism that attaches the apparatus to the electrical conductor. According to various aspects, apparatus may include a housing that encloses circuitry for monitoring conditions of the electrical conductor, where the circuitry includes one or more sensors, and wireless communications circuitry.

Abstract: Systems, methods, and devices for providing a luminaire inductively coupled to a power transmission line include a current transformer containing a plurality of tap points, and a plurality of tap switches that can be coupled to the tap points. The plurality of tap switches are connected to a microcontroller. Further, the systems, methods, and devices include an energy storage device, and LED light source(s). In some instances the current transformer powers the LED light source(s), and in other instances, the current transformer charges the energy storage device and the energy storage device in turn powers the LED light source(s), and in yet other instances, a combination of powering directly from the current transformer or energy storage device may be switched back and forth depending on a variety of parameters.

Abstract: A harvesting and measurement device is operable in at least a normal operation mode, a demand measurement mode, and a fault measurement mode. In the normal operation mode, the device is able to harvest energy from an associated power line and monitor current and voltage conditions through a lower power circuit. In the demand measurement mode, harvesting elements of the circuit are disabled so as not to interfere with accuracy of demand current measurements. In the fault measurement mode, one or more Hall sensors are activated such that high currents can be accurately measured.

Abstract: An apparatus is provided for securing to and collecting power from an electrical conductor, including a current transformer comprising a core and an electrical winding that receives an induced current from magnetic flux generated according to alternating current present on the electrical conductor, and a clamping mechanism that attaches the apparatus to the electrical conductor. According to various aspects, apparatus may include a housing that encloses circuitry for monitoring conditions of the electrical conductor, where the circuitry includes one or more sensors, and wireless communications circuitry.

Abstract: An apparatus is provided for securing to and collecting power from an electrical conductor including a wire clamp that clamps and secures to an electrical conductor, a current transformer (“CT”) that clamps to the electrical conductor and collects power from the electrical conductor, and a housing that supports the wire clamp and the current transformer. According to various aspects, the apparatus may include a wire clamp including a compression post and clamp arms that surround and compress an electrical conductor in a closed position of the wire clamp, where each of the clamp arms includes pivot posts, and the clamp arms pivot between closed and open positions. According to other various aspects, the apparatus may include a split magnetic core that surrounds an electrical conductor in a closed position of the current transformer, where the split magnetic core includes pivot posts, and the split magnetic core pivots between closed and open positions.

Abstract: An apparatus is provided for securing to and collecting power from an electrical conductor including a wire clamp that clamps and secures to an electrical conductor, a current transformer (“CT”) that clamps to the electrical conductor and collects power from the electrical conductor, and a housing that supports the wire clamp and the current transformer. According to various aspects, the apparatus may include a wire clamp including a compression post and clamp arms that surround and compress an electrical conductor in a closed position of the wire clamp, where each of the clamp arms includes pivot posts, and the clamp arms pivot between closed and open positions. According to other various aspects, the apparatus may include a split magnetic core that surrounds an electrical conductor in a closed position of the current transformer, where the split magnetic core includes pivot posts, and the split magnetic core pivots between closed and open positions.

Abstract: An apparatus is provided for securing to and collecting power from an electrical conductor including a wire clamp that clamps to and secures the apparatus to the electrical conductor, a current transformer (“CT”) that clamps to the electrical conductor and collects power from the electrical conductor, and a housing including a cavity that encloses circuitry associated with the apparatus. According to various aspects, the circuitry may include one or more sensors and wireless communications circuitry, and the CT may include a core and an electrical winding that receives an induced current from magnetic flux generated according to alternating current present on the electrical conductor.

Abstract: An apparatus is provided for securing to and collecting power from an electrical conductor, including a current transformer comprising a core and an electrical winding that receives an induced current from magnetic flux generated according to alternating current present on the electrical conductor, and a clamping mechanism that attaches the apparatus to the electrical conductor. According to various aspects, apparatus may include a housing that encloses circuitry for monitoring conditions of the electrical conductor, where the circuitry includes one or more sensors, and wireless communications circuitry.

Abstract: A power line monitoring device is mounted to a power line. The device includes circuitry for monitoring the power line and communicating information regarding the power line. A ground reference point of the circuitry is electrically coupled to the power line. Therefore, the monitoring device, including its circuitry, has substantially the same voltage potential as the power line. Accordingly, there is a substantially equalized or uniform electric field around the device. The substantially equal voltage potential and electric field allow communications with the monitoring device to have reduced noise and interference, as compared to other devices that have different voltage potentials than their corresponding power lines. A pad of semi-conductive material may be disposed between the power line and the electrical conductors to slow a rate of change of the voltage potential of the device circuitry when mounting the device to the power line, thereby minimizing risk of corona discharge.