In modern society, electric power, as an important part of infrastructure, provides a strong power for people's life and economic development. However, with the continuous expansion of the scale of the power system, the safety problems of transmission lines are becoming more and more prominent. In order to ensure the stable operation of the power system, the online monitoring of lightning arrester is particularly important. This paper will introduce the principle, technology and application prospect of online monitoring of transmission line surge arresters.

Lightning arrester online monitoring working principle

Transmission line surge arrester online monitoring device is mainly installed in the surge arrester through the sensor real-time acquisition of the working status of the surge arrester, including the leakage current of the surge arrester, grounding voltage and other parameters. Through the real-time monitoring of these parameters, the working performance of the arrester can be effectively assessed, and faults can be found in a timely manner, so as to ensure the safe operation of transmission lines.

Lightning arrester online monitoring work parameters

1. Sensor technology: through the installation of various types of sensors on the lightning arrester (such as pressure sensors, current sensors, etc.), real-time collection of lightning arrester operating status.

2. Data acquisition and transmission technologies: Wireless communication technologies (e.g., 4G/5G, LoRa, etc.) are used to transmit the acquired data to the data center for processing.

3. Data analysis and early warning technology: real-time analysis of the data transmitted to the data center, through the setting of thresholds to determine whether the working status of the lightning arrester is normal or not, and if there is any abnormality, then send out early warning information in a timely manner.

4. Visualization display technology: through the data visualization tool, the monitoring data will be displayed in a graphical manner, so as to facilitate the user to intuitively understand the working status of the lightning arrester.