Wuhan Electric North Branch Electric Co. BKQF-1 type SF6 decomposition detector manufacturers

First, the purpose and scope BKQF-1 type SF6 decomposition detector, while monitoring SO2 and H2S by two decomposition can be detected quickly at the scene to determine SF6 electrical equipment (circuit breakers, transformers, transformers, GIS and sets early failure of internal tubes, etc.). The instrument can be widely used in electric power, railway, metallurgy and petrochemical industry SF6 electrical equipment. Second, an overview SF6 electrical equipment malfunction into the body and operating mechanism failure Internal fault; fault relates to solid insulation inside the body of the security apparatus of the biggest threats to its internal discharge and thermal fault can be divided into two categories, divided discharge Fault the floating potential discharge between discharge and turns on the ground floor discharge. Electrical test commonly used at home and abroad are generally required in the power state and to endanger the safety of the biggest insulation has become a very low detection rate. The company produces HDFJ-501 type SF6 decomposition detector together for the intelligent, high sensitivity, stability, easy to operate, it can automatically diagnose the concentration detected and put forward opinions for the early failure of SF6 electrical equipment inside detection provides a simple and effective means. Third, performance indicators 1. The minimum detectable amount: 0.1ppm 2. Stability: temperature 20 ℃ ~ 40 ℃, the maximum zero drift ≤ ± 0.1ppm 3. Accuracy: measuring ≤2ppm, the error ≤ ± 0.1ppm i Measurement> is 2ppm, error ≤ ± 0.2ppm 4. Repeatability: SO2, H2S are ≤2% 5. Measuring range: 0 ~ 100ppm (customizable) 6. Temperature range: -40 ℃ ~ + 50 ℃ 7. humidity range: ≤95% RH 8. Atmospheric pressure: 86kPa ~ 106kPa 9.-owned Power: built-in rechargeable battery, full of continuous work over 10 hours 10. Shape: 252 × 310 × 98mm 11. Weight: 2.5kG 12. Communication : RS232 Fourth, the detection principle and procedure 13. SF6 electrical equipment interior gas through the valve, after the airway into the instrument, two routes inflow of SO2 and H2S sensors simultaneously detect the concentration of SO2 and H2S into the corresponding electrical signals, by op amp, after the filter circuit, to the microprocessor and A / D converters, the analog signal into a corresponding digital signal, the actual value of the measured concentrations by the LCD display. The number of memories by the microprocessor logic and expert diagnostic system to do a comparative analysis to determine the type of fault.