★Supply：AC85-265V,50/60Hz
★Power consumption：Main Unit ＜25VA, Sensor＜5VA
★Alarm contact capacity：AC220V/7A normally open/ normally close
★Blower contact capacity：AC220V/15A normally open
★Test precision of sensor：O2 ±1%FS SF6 ＜2% measured value
★Test range of sensor：O2 (1.0~25.0)%, resolution ratio 0.1%
SF6 (1~1000)ppm, resolution ratio 1ppm
★Communications：RS-485
★Temperature：-55.0℃ ~ +125.0℃
★Humidity：10 ~ 99% RH
★Dielectric strength：＞2000V
★Electromagnetic compatibility：electrostatic discharge GB/T14598.10-1998 step3
★Electrical fast transient：GB/T14598.14-1999 step3
★Lightning strike：GB/T17626.5-1999 step3
★Dimension：250mm×120mm×400mm
★Weight：about 10Kg
●Detecting function of SF6 in ambient air, alarm function when the value of SF6 is over the standard
●Detecting function of O2 in ambient air, alarm function when the value of O2 is under the standard
●Forced ventilation function .while the value of SF6 is over 1000ppm or the value of O2 is under 19.6%,the ventilation fan will start to working
●Artificial setting alarm points
●Detecting function of temperature and humidity in ambient air
●The timing of ventilation function
●Artificial ventilation function
●Display function of last ventilation
●Real time display each kind of parameter
●Inquire function about historical data
●Infrared detection and voice notification function
System is mainly detected in ambient air,the SF6 gas'content and oxygen content
System installation:
●the whole system can be installed in the power state of equipment.
●we responsible for on-site investigation,construction,installation,commissioning work,the user sent to custody at the scene.
●users associations,we meet,conduct on-site inspection,record inspection results on behalf of the signing by the user.
●construction after the completion of our responsibility to provide systems engineering plans within one week.
Network system:
In order to fully and accurately monitor the situation at the scene, the project-site monitoring in accordance with the scope, equipment, such as intensity of the actual situation, using the exhaust method, the various sampling points of the gas pumped into the trachea with focus on analysis of air chamber and at the same time analysis of a sample point of oxygen and SF6 gases.
For a 110KV change GIS rooms,the use of 6-channel detection of SF6 gas content and 6-channel detection of oxygen content,respectively,to monitor the switch 3.
System can be online displayed on the sampling point switch of the indoor SF6 and O2 concentration, when the switch indoor concentration of SF6 and O2 over the system alarm alarm threshold.(SF6 alarm threshold to 1000ppm,the value can also be carried out in accordance with Council requirements change,LK303 warning system detection limit is 200ppm, concrete construction can be adjusted according to user requirements. O2 alarm threshold is 19.6%.)
LK303 On Line Leakmeter system Assumption diagram:
