Because of its decentralized characteristics, the environment of transmission lines changes greatly, and it is easy to cause line faults due to wind deviation, lightning strike and pollution. In particular, timely grasp of local environmental changes requires online data monitoring.
Micro-meteorological monitoring system mainly monitors the micro-meteorological environment data of transmission line corridors online, and can analyze the meteorological parameters and rigorous data such as temperature, humidity, wind speed, wind direction, air pressure, rainfall, light radiation and so on at monitoring points. Through regular data transmission, line technicians can grasp the climate change law of the line operating environment in time according to the data curve, so as to take corresponding measures (such as installing zinc oxide lightning arresters in minefields and adjusting creepage in polluted areas). ) to prevent line power failure accidents.
2. Video online monitoring system
Due to economic development, various buildings are frequently rebuilt. In addition, the tower lines in the wilderness are easily damaged by external forces, and the line trip accidents caused by this increase year by year. The traditional patrol mode can no longer meet the existing security requirements.
Therefore, in the power industry, there is an urgent need for a powerful monitoring means to monitor the surrounding conditions and environmental parameters of transmission lines around the clock, so that transmission lines can operate visually and controllably. The remote monitoring system for dangerous points of overhead transmission lines adopts advanced digital video compression technology, which can transmit the situation around the line to the background monitoring center in real time through wireless communication, and can set up programs to alarm the behavior that endangers the safety of the line. Infrared detection technology is used to monitor the towers in high-risk areas of transmission lines around the clock to eliminate hidden dangers in time. Effectively reduce power accidents caused by external damage such as building construction around the line. In areas where patrol personnel are not easy to reach, the number of patrols is greatly reduced, which opens up a new idea for the patrol and condition maintenance of transmission lines. The powerful query, comparison and analysis functions of the system software. It can timely understand the information of equipment and environmental changes, and provide factual basis for accident prevention and post-event analysis.
3. Ice monitoring system
By installing an automatic icing monitoring station on the tower in the icing-prone area. Using accurate monitoring analysis method and practical mathematical model, the icing state of transmission lines can be monitored in real time, which can monitor the icing (snow) of insulators of high-voltage transmission lines and substations running in harsh atmospheric environment on line, detect the change of equivalent icing thickness in a vertical span unit in time, and provide early warning values for users according to line design standards. You can also take photos of the icing on the spot and send the photos and environmental parameters to the monitoring center through GPRS/CDMA wireless communication network, so that the monitoring center can keep abreast of the icing on the line. By comparing and analyzing the photos, we can judge the ice accumulation speed, integrate various meteorological conditions, and make corresponding treatment measures to prevent the occurrence of large-scale power outages.
4. On-line monitoring system for tower inclination
Because some towers are located in mined-out areas and easy-to-scour areas, it is necessary to grasp the development of tower inclination in time in order to prevent the tower from falling and breaking due to overturning, so as to take corresponding measures in time.
The tower tilt sensor sends the collected data such as lateral tilt, longitudinal tilt and composite tilt of the tower to the monitoring center through 3G/GPRS/EDGE/CDMA 1X, and the monitoring center stores, displays, counts and analyzes the state parameters such as lateral tilt and longitudinal tilt in combination with the design parameters of the tower, thus completing the multi-parameter early warning function of the tower tilt. It can judge the development trend of tower inclination in time and handle it in time when it reaches the alarm state. It is an effective means for online monitoring in mining and areas with more wipers.