SF6 high-voltage circuit breakers are widely used in power systems. The reliable operation of SF6 high-voltage circuit breakers has become one of the most critical concerns for the power supply sector.

The SF6 gas density relay is used to detect the changes in the SF6 gas density inside the SF6 high-voltage circuit breaker during operation. The quality of its performance directly impacts the operational safety of the SF6 high-voltage circuit breaker.
 

Technical Parameters:

1. Measurement Range: Relative Pressure: -0.1—0.25Mpa; /0-0.2Mpa.
2. Accuracy: 0.5 grade (at 20°C); 1.0 grade (at -40°C to 60°C).
3. Enclosure Protection Grade: IP65.
4. Sealing Performance: ≤ 1.0×10?? Pa · m³/s.
5. Operating Power Supply: DC 24V.
6. Shock Resistance: 500 m/s².
7. Vibration Resistance: 200 m/s².
8. Ambient Temperature: -40 to 60°C, atmospheric pressure 86 to 106 kPa.
9. Relative Humidity: ≤ 95% RH.
10. Communication Protocol: Modbus-RTU, Modbus-TCP.