SF6 gas concentration online monitoring system

SF6 gas concentration monitoring system

The system conducts real-time online monitoring of SF6 gas and oxygen, and alarms when SF6 concentration exceeds the standard or oxygen deficiency occurs. It automatically links the fan to work, which can effectively avoid personnel health and safety accidents caused by high SF6 concentration and decreased proportion of oxygen concentration in indoor local environments.

Mainly used in indoor scenarios such as GIS rooms and SF6 gas filling cabinets filled with SF6 gas.

architecture diagram

SF6 gas concentration monitoring systemFeatures:

SF6 gas, oxygen concentration, temperature, and humidity detection function in the environment

Real time display function of telemetry and remote signaling for all monitoring points in the environment

SF6 gas concentration exceeding the standard and oxygen deficiency alarm function, forced exhaust function and automatic exhaust function

 Automatic start function of the fan when an alarm is triggered  Timed automatic exhaust function

Manually force all fans to start or stop

Historical data query, display, and storage functions

Remote sensing value historical curve trend query and display function

Enter the GIS or distribution room to automatically report the current environmental status function

Multiple monitoring point configuration function in different regions

Can provide communication protocols and interface with substation backend databases

Multi point networking function, reserved for integration with backend monitoring and fire protection systems

Sound and light, voice alarm function, and remote alarm function

Supports standard Modbus RTU/TCP/104/61850 upload protocol

working environment

Working voltage: AC/DC 220V ± 10%, 50Hz

Power consumption:<10W at rated voltage

monitoring parameters

SF6 gas concentration measurement range: 0-3000ppm

SF6 concentration over limit alarm point: 1000ppm (national standard value), accuracy<5% FS

Oxygen content detection range: 0-25%

Hypoxia alarm point: 18% (national standard value), accuracy<1% FS

Temperature detection range: -30 to+99 ℃ (accuracy ± 0.5 ℃)

Humidity detection range: 10-99% RH: accuracy ± 0.5% RH

Other parameters　 　

Remote communication method: 485/Ethernet

On site host dimensions (mm): L330 × W250 × H65

Detection unit size (mm): L162 × W150 × H38

Monitoring historical data storage capacity: 5 million records

Touch screen size: 7 inches

Installation method of host and detection unit: wall mounted