The present application discloses a method and device suitable to perform the method for operating Voltage Indication system (VIS) and partial discharge module (PD) for medium-voltage or high voltage apparatuses, comprising: monitoring, with the partial discharge-module (PD), provided in low-voltage section, whether partial discharge occurs within a dielectric of the high-voltage or medium-voltage apparatus or system, the partial discharge-module or VIS being electrically connected to a coupler provided in the medium-voltage or high-voltage apparatus; indicating with the Voltage Indication System (VIS), provided in a low-voltage portion, the presence of operating voltages in high-voltage or medium-voltage apparatus or system, Voltage Indication System (VIS) being electrically connected with partial discharge-module (PD) and deactivating by deactivation module connected to Voltage Indication System and partial discharge-module (PD) an optical display in the Voltage Indication System (VIS) during partial discharge measurements.

A method for automatically detecting a sensor coupled to an electronic computer including steps of detecting the sensor and steps of configuring a hardware interface.

A system (1) for spiking, i.e. exploring voltage, in electric cables (5) comprises a first clamping jaw (3) and a second clamping jaw (4) to lock a portion of an electric cable (5) in a clamping position (7), an elongated metal blade (8) which can be displaced between a retracted position and an extended position in the clamping position (7), a hydraulic actuator (9) to displace the blade (8), with respect to the first and second clamping jaws (3, 4), from the retracted position into the extended position, a pump (10) adapted to increase the pressure of a hydraulic liquid acting on the hydraulic actuator (9), a hand-held remote control (12) for remotely actuating and controlling the pump (10), wireless actuation communication means (13) adapted to provide pump actuation signals from the remote control (12) to the pump (10).

A system (1) for spiking, i.e. exploring voltage, in electric cables (5) comprises a first clamping jaw (3) and a second clamping jaw (4) to lock a portion of an electric cable (5) in a clamping position (7), an elongated metal blade (8) which can be displaced between a retracted position and an extended position in the clamping position (7), a hydraulic actuator (9) to displace the blade (8), with respect to the first and second clamping jaws (3, 4), from the retracted position into the extended position, a pump (10) adapted to increase the pressure of a hydraulic liquid acting on the hydraulic actuator (9), a hand-held remote control (12) for remotely actuating and controlling the pump (10), wireless actuation communication means (13) adapted to provide pump actuation signals from the remote control (12) to the pump (10).

The various embodiments herein provide an energy harvester which can capacitively harvest stray electric field from low-voltage AC power lines without a physical grounding connection. The energy harvester comprises an inner electrode, an outer electrode and a circuit. The inner electrode forms an inner periphery of an upper portion of a harvester housing. The outer electrode forms an inner base of a lower portion of the harvester housing to provide a local ground reference. The circuit is housed within the lower portion of the harvester housing to direct stored energy and control an energy discharge.

The various embodiments herein provide an energy harvester which can capacitively harvest stray electric field from low-voltage AC power lines without a physical grounding connection. The energy harvester comprises an inner electrode, an outer electrode and a circuit. The inner electrode forms an inner periphery of an upper portion of a harvester housing. The outer electrode forms an inner base of a lower portion of the harvester housing to provide a local ground reference. The circuit is housed within the lower portion of the harvester housing to direct stored energy and control an energy discharge.

A system and method for obtaining frequency-domain admittance/impedance using a few sets of time-series data. Utilizing an Eigensystem Realization Algorithm (ERA) or a dynamic mode decomposition (DMD), the input/output frequency-domain model reflecting voltage/current relationship is identified, and admittance/impedance identification is demonstrated for a grid-connected inverter-based resource (IBR) system. The proposed approach provides a powerful tool to replace the state-of-the-art harmonic injection methodology.

A system and method for obtaining frequency-domain admittance/impedance using a few sets of time-series data. Utilizing an Eigensystem Realization Algorithm (ERA) or a dynamic mode decomposition (DMD), the input/output frequency-domain model reflecting voltage/current relationship is identified, and admittance/impedance identification is demonstrated for a grid-connected inverter-based resource (IBR) system. The proposed approach provides a powerful tool to replace the state-of-the-art harmonic injection methodology.

A system may include a device that controls power to an electrical component of an electrical power distribution system. The system may also include a voltage detection device that may detect a presence of a voltage within a distance. The system may further include a control system that may receive location information via a receiver communicatively coupled to the control system, and adjust more operations of the device based on at least in part of the location information. The location information may be transmitted by the voltage detection device in response to detecting that the presence of the voltage is within the distance. The location information may correspond to the electrical component.

A system may include a device that controls power to an electrical component of an electrical power distribution system. The system may also include a voltage detection device that may detect a presence of a voltage within a distance. The system may further include a control system that may receive location information via a receiver communicatively coupled to the control system, and adjust more operations of the device based on at least in part of the location information. The location information may be transmitted by the voltage detection device in response to detecting that the presence of the voltage is within the distance. The location information may correspond to the electrical component.