Overview of switch cabinet connector cable connectors, 10kV, 35kV High Voltage Switchgear of dynamic and static contact and electrical equipment is troublesome weaknesses, since the site is bad, plug eccentric errors and other reasons, resulting in contact resistance large, high current situation where the heat seriously, with the result that the joint temperature anomalies, increasing the contact surface oxidation, so that the contact resistance is further increased, creating a vicious cycle, developed to a certain stage, it will cause serious fault, undermine the safe and reliable power supply. Dynamic and static contact connectors, high voltage cable splices, connectors, conductor portions abnormal overheating caused by poor contact, resulting in accelerated aging of insulation breakdown, which is a major fault in the form of high voltage switchgear. Features wireless temperature sensor can be directly attached to the joints and other parts easy to heat, real-time monitoring of measuring points temperature changes, failure to achieve early prediction and warning, when a failure occurs, an alarm and to quickly and accurately determine the fault location, and Press the appropriate action to take safety plan. The scope of application of high voltage switchgear temperature monitoring contacts and contacts knife switch, high voltage cable in the middle head, dry-type transformers, low voltage high current cabinets and other equipment. Technical parameters of the system power supply: 220VAC / DC Temperature channel: stand-alone system supports temperature measurement points 3-9, the maximum temperature of 250 collection points. Meter Working temperature: -20 ℃ ~ + 80 ℃. Meter Humidity: ≤95% RH Alarm Output: passive node output Battery life: 5 to 7 years Communication interfaces: RS-485 (isolated) transmitter module and receiving module from the open ≤300 meters. RS-485 communication distance: <1200 m Temperature Range: -55 ℃ ~ 125 ℃ Accuracy: ≤ ± 1% Resolution: 0.1 ℃ opening size: 91X91mm