“…A personal computer that integrated with LabView software received it, transforms sensor data to the frequency of domain using Stockwell transformation, and showed a value of the harmonic. Authors in [15] made a prototype of harmonic monitoring using PT, CT, IC ADE 7880 known as polyphase multifunction energy metering IC with harmonic monitoring). Zigbee collected the harmonic data and sent it into the Zigbee receiver, then is forwarded to users through Global System for Mobile Communication (GSM) technology.…”