1, power wireless temperature measurement system project before the power industry power cables and equipment often overheat and cause a fire, resulting in a large area of ??burning cables and equipment damage and was forced to shut down, unable to resume production within a short time, resulting in significant economic losses . By analyzing the direct cause of the accident, causing electrical equipment overheating and fires are Cable Joints poor production quality, compression joints are not tight, the contact resistance is too large, resulting in a long-running cable head overheat, burn insulation. The quality of the middle cable crimp connector, found only in the operation, run the longer prone to overheating burn accidents, statistics show that 10 years after the substation construction, the production of cable infrastructure over the head when 90% were due to quality Adverse lead to failure and replacement. the specific location of the power plant equipment needed to monitor the temperature http://www.scenea.cn include: surface-conduction busbar connectors, high voltage switchgear contacts, knife switches, dry-type transformers, box-type substation and other equipment, these temperature position It is characterized by: (1) require temperature detection points: preliminary statistics 220KV substation of a variety of cable joints of thousands. Location (2) detection points vary widely: some indoors, some outdoors; some in the control cabinet, some exposed at high altitude. Voltage (3) detection of up to hundreds of thousands of volts point, the current tens of amperes or even hundreds of amps, equipment distribution around a very strong electromagnetic interference. Thus, these test points can not be wired using conventional temperature detection. 2, the power of wireless temperature measurement system consisting of (1) Wireless Temperature Sensor: referred collector, temperature monitoring points responsible for collecting data and wirelessly sends out data collection. (2) Wireless Gateway: responsible for collecting temperature data wireless temperature sensor sends to form a local area network, the collected data uploaded to the temperature management host through the network. (3) Temperature management unit: referred to the host, is responsible for data transmission terminal operating parameters set to automatically cycle to read the temperature data received from the terminal, and the data were analyzed and found more than the warning temperature or temperature abnormal fluctuations in the immediate alarm. Temperature data can be used for long-term storage recorded in the computer, for display at any time. 3, the power of wireless temperature measurement system Features (1) contact detection, accurate and reliable data. (2) Wireless temperature monitoring radio communication to solve high-voltage isolation and creepage problem, no need to add extra lines in a complex network environment, convenient installation and maintenance of the system, but also reduce the impact on the safe operation of the power grid, so that security, flexibility has been greatly improved. Wireless communication choose to work in 2.4-2.5 GHz operating frequency, the human body without harm, no electromagnetic interference on the surrounding equipment complies with FCC standards and national radio regulations. (3) continuous real-time online monitoring, no temporal blind spots. 4, the technical indicators (1) Measuring temperature range: -25 ℃ ~ + 125 ℃ (2) Accuracy: ± 0.5 ℃ (3) temperature of the reaction time: less than 10S (4) Acquisition life: more than 5 years (5) monitoring area: 0 to 1,500 meters (expandable); 5, power wireless measurement system application power wireless measurement system is mainly used in the national power system 220KV and below the voltage level of the high-pressure magnetic environment contactless multi-line temperature monitoring and early warning. Power wireless temperature monitoring and warning system is also applicable to the national grain storage, cold storage, warehouses, mills, coal, oil, chemical, metallurgy, brewery and other industries temperature / level / pressure.