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SF6 gas is an insulation and arc-quenching medium used in high-voltage switchgear. Leaks can lead to decreased equipment performance, or even cause failures, jeopardizing equipment safety and the safety of personnel.
SF6 gas has a extremely strong greenhouse effect, it is 23,500 times that of carbon dioxide (CO2) and can exist in the atmosphere for over 3,200 years. According to the Intergovernmental Panel on Climate Change (IPCC), the emission of SF6 gas accounts for more than 15% of the total global greenhouse gas emissions, with 70% of these emissions coming from the power industry (including gas leaks, recovery, equipment maintenance, and decommissioning), making it the largest source of SF6 emissions globally, which severely damages the natural environment. It has been classified as a mandatory reduction gas internationally.
Sensor detection: Uses specialized SF6 monitor sensors to detect the gas concentration in the surrounding environment.
Continuous sampling: The system continuously collects gas samples to ensure real-time monitoring.
Data transmission: The sensor transmits the detected concentration data to the monitoring system.
Real-time display: The system displays the concentration of SF6 gas in real-time.
Setting alarm thresholds: Alarm thresholds can be set according to safety standards and actual needs.
Alarm function: The system alerts when the concentration exceeds the set threshold.
Data recording and storage: The system records and stores historical concentration data for future analysis.
Remote monitoring: Some systems support remote monitoring, allowing staff to achieve SF6 monitor in real-time from a remote location.
To ensure the accuracy and reliability of the monitoring system, the following measures are usually taken:
Regular calibration of sensors to ensure accuracy.
Regular maintenance and inspection of the system.
Choosing high-quality sensors and monitoring equipment.
Consider appropriate positions and quantities when installing sensors to ensure comprehensive monitoring.
By real-time SF6 monitor, the system can help ensure the safe operation of power equipment, detect leakage issues early, and take timely measures to prevent accidents.
False alarms: Might be caused by sensor malfunctions, interference, or other factors.
Missed leaks: Failure to detect actual leaks promptly.
Sensor accuracy: Precision and reliability issues with the sensors.
System failures: Including hardware failures, software errors, or communication issues.
Solutions for these issues:
Regular calibration and maintenance of sensors to ensure accuracy and reliability.
Optimize system design to reduce false alarms and missed leaks.
Choose high-quality equipment and components to improve system stability.
Conduct system testing and verification to regularly check system performance.
Enhance interference protection, for example, shielding from electromagnetic interference.
Provide training: Familiarize operators with the system use and troubleshooting.
Additionally, the following measures can also be taken to improve the SF6 monitor system:
Real-time data monitoring and analysis to detect anomalies promptly.
Remote monitoring for convenient management and troubleshooting.
Integration with other systems, such as equipment monitoring systems, for comprehensive monitoring and management.
Setting multi-level alarms according to the severity of the leaks.
User-friendly interfaces to allow operators a clear understanding of the system status.
