To understand where SF6 gas detector is used, we should know the main applications of SF6 gas firstly.
SF6 is primarily used in gas-insulated switchgear (GIS). GIS encloses high-voltage components such as circuit breakers, disconnectors, earthing switches, current/voltage transformers, busbars, and lightning arresters in a metal casing filled with SF6 gas. SF6 has strong dielectric strength and a high electronegativity, effectively attracting free electrons and rapidly extinguishing arcs. Both high-voltage and medium-voltage circuit breakers use SF6 as an arc-extinguishing and insulating medium. SF6 itself is non-toxic, but it is a strong greenhouse gas. Leaks and dissolution in water can produce highly toxic HF. when there is SF6 gas leakage, It will also increase the humidity of the SF6 gas in the equipment, and the internal insulation will be broken down, resulting in an accident and will result in greenhouse effect. The large greenhouse effect is 20,000 times that of CO2. Therefore, the SF6 gas leak detection work is very important. It is necessary to test the equipment for leaks before shipment, during installation, and during subsequent maintenance. Installing a fixed SF6 leak monitoring and alarm system in a GIS room or equipment area provides real-time monitoring of SF6 concentration and oxygen content in the ambient air, ensuring personnel safety (preventing asphyxiation and poisoning) and ensuring a safe and reliable power system.
Our company's SF6 gas leak detectors utilize infrared sensors with high accuracy, fast response, and quantitative measurement (ppm level). They also offer excellent selectivity and are less susceptible to interference from other common gases.Our fixed SF6 gas detectors or with SF6 gas detection system are installed in critical equipment areas (such as GIS rooms), provide real-time gas monitoring. They provide real-time on-site gas concentration monitoring via 4-20mA or RS485 Modbus signal outputs and relay outputs. Connecting to a gas control panel or wirelessly transmitting data to the cloud enables timely monitoring and alarms.
We also produce portable SF6 gas detectors.Engineers can carry portable sulfur hexafluoride detector on-site to perform spot checks, inspections, and leak location for equipment (GIS, circuit breakers, pipe joints, etc.). These devices can locate leaks, identify leak intensity, provide audible and visual alarms, and provide remote transmission.