In order to improve traditional measurement method zinc oxide lightning arrester and the drawbacks of the existing transmission condition monitoring system, this paper proposes a zinc oxide lightning arrester distributed measurement device. This design will be PT secondary side voltage, resistance sexual fundamental wave current and resistance three harmonic current as reference parameters determine the performance of zinc oxide lightning arrester,AT91RM9200 as the core processor, through to the PT secondary voltage, resistance fundamental wave current and resistance of three harmonic current extraction, collection, analysis, communication transmission via wi-fi, finally based on the LABVIEW software design of the terminal display the waveform for determining parameters real-time acquisition. By experimental verification, this design not only ensures the performance of lightning arrester state on-line monitoring accuracy, and communicate via wi-fi transmission to improve the reliability of the distributed measurement,implementation is simple, meet the actual demand.
