Application Of Matrix Infrared Thermometer In On Line Monitoring Of 10kV Switchgear

With the development of automation technology of intelligent substation,substation equipment on-line monitoring system because of its safety,economy and high reliability has been widely used,and in a substation important customers in the online monitoring system upgrade is the trend of the times,is the trend of the substation on-line monitoring level of the relationship to the safe operation of substation,customers and power grid.In the power system,the switch cabinet and the ring net cabinet of power plant and substation are the important equipment to ensure the stability and reliability of power supply.The reliability of power supply equipment is higher and higher.In the condition of high voltage and high current,the working reliability of the high voltage switchgear is closely related to the temperature rise of the disconnector.Mechanical vibration in the operation of power system,and contact ablation and other reasons can make the contact conditions worsen,the increase of contact resistance,contact points caused by temperature rise,increasing contact surface oxidation,causing local welding or loose contact arcing at the release point,resulting in damage to the electrical equipment of the power outage or even lead to major accidents such as fire.Electricity demand,Luanxian power company for the comprehensive investigation of market user equipment performance,application of real-time monitoring,on-line monitoring system should be temperature measuring device based on wireless transmission technology,using the temperature sensor and the contact and direct contact with the wireless transmission mode to obtain the contact temperature,should have a wide range of temperature measurement equipment,low cost,suitable for to promote a wide range of temperature probe;uses the field bus communication mode,can effectively reduce the number of wiring,easy on-site construction;temperature probe can be determined according to actual needs of transmitting temperature image or a small amount of necessary temperature information,so as to realize the abnormal change of temperature characteristics of electric power equipment rapid alarm,on-line monitoring system of power supply switch cabinet and ring the cabinet can effectively protect the stability and reliability of the substation.For the majority of users of Luanxian company to provide accurate power services.