Abstract: A device and a method including a power supply module operative to extract electric power from magnetic field surrounding an electric cable, a transceiver operative to communicate in a backhaul network, a transceiver for a wireless local area network and/or a remote sensing unit, and a controller module communicatively coupled to the transceiver and/or remote sensing unit, where the device is mounted around a single electric cable of an electric transmission grid or an electric distribution grid, and where the device derives power form the single electric cable.

Abstract: A method and a device for cleaning an electric cable and/or an electric insulator connected to the electric cable. The device includes a power supply module operative to extract electric power from magnetic field surrounding an electric cable, a propulsion module for maneuvering the device at least one of along the electric cable and around the cable, and a dusting module for cleaning the electric cable, where the device is mounted on a single electric cable of an electric transmission grid and/or an electric distribution grid.

Abstract: A system and a method for measuring leakage current in an electrical transmission network. The system contains a plurality of electric current measurement devices distributed along the electrical transmission network and at least one central controller. The current measurement devices measure the electric current substantially continuously or repeatedly and report to the central controller. The central controller performs analysis of the measurements of the electric current along the transmission network and calculates the leakage current.