Arrester Resistive Current Measuring System Based on Heterogeneous Network

[摘要] Metal Oxide Arrester (MOA) suffers from aging and poor insulation due to long-term impulse voltage and environmental impact, and the value and variation tendency of resistive current can reflect the health conditions of MOA. The common wired MOA detection need to use long cables, which is complicated to operate, and that wireless measurement methods are facing the problems of poor data synchronization and instability. Therefore a novel synchronous measurement system of arrester current resistive based on heterogeneous network is proposed, which simplifies the calculation process and improves synchronization, accuracy and stability and of the measuring system. This system combines LoRa wireless network, high speed wireless personal area network and the process layer communication, and realizes the detection of arrester working condition. Field test data shows that the system has the characteristics of high accuracy, strong anti-interference ability and good synchronization, which plays an important role in ensuring the stable operation of the power grid.

[发布机构] Research and Development Department, State Grid Liaoning Electric Power Co., Ltd., Electric Power Research Institute, Heping District, Shenyang; 110000, China^1;Research and Development Department, Shenyang Kekai Electric Power Technology Co., Ltd., Hunnan District, Shenyang; 110000, China^2

[效力级别] 无线电电子学

[关键词] Calculation process;Data synchronization;High speed wireless;Metal oxide arrester;Resistive currents;Synchronous measurements;Variation tendencies;Wireless measurements