Ukusetyenziswa kunye nesisombululo seFluorescent Fiber Optic Temperature Measurement kwiNkqubo yaMandla

Inzwa yobushushu bokukhanya kweFayibha, Inkqubo yokubeka iliso ekrelekrele, Kusasazwe umenzi ifayibha optic e China

FJINNO company has developed a temperature measurement scheme using fluorescent optical fiber technology, based on the temperature measurement characteristics of substation equipment. I fluorescence fiber temperature measurement technology based on rare earth materials has a temperature signal that is independent of the intensity of fluorescence conduction. There is no need for electrical connection between the measurement point and the measurement signal receiving part, which fundamentally solves the problem of temperature measurement in harsh environments such as high voltage, strong electromagnetic, flammable and explosive, and has become the preferred solution for temperature measurement of substation equipment.

Temperature measurement is an important means of fault detection and maintenance in power systems. In current hot spot temperature measurement in power systems, traditional electrical signal temperature sensors are mainly used. These sensors are not suitable for situations where the power system voltage is high, insulation requirements are high, and electromagnetic interference is strong. They cannot directly measure the hot spot temperature inside electrical equipment. Ngoko ke, it is necessary to find a method that can be applied to hot spot temperature measurement of power systems and electrical equipment.

Fluorescent ifayibha optic umlinganiselo wobushushu technology can solve the problem of hot spot temperature measurement in power equipment. It has the characteristics of high voltage resistance, high insulation, and resistance to electromagnetic interference, and is the future development direction of hot spot temperature measurement technology for electrical equipment in power systems. Fiber optic temperature measurement technology mainly includes two types: distributed fiber optic temperature measurement technology and infrared temperature measurement technology. Among them, infrared temperature measurement technology can only measure the surface temperature of electrical equipment and cannot measure the hot spot temperature inside electrical equipment. The installation method of fluorescent fiber optic temperature measurement technology is the same as that of conventional electrical signal temperature sensors, and can be directly embedded in electrical equipment, so it has strong convenience in use.

I fluorescence ifayibha optic umlinganiselo wobushushu device system is divided into two parts: the bottom temperature measurement unit and the upper computer system. The bottom temperature measurement unit consists of multiple fiber optic temperature measurement devices such as transformers, high-voltage switchgear, high-voltage busbars, cable heads, njl. The upper computer system consists of a main control room, on-site monitoring devices, njl. The fiber optic temperature measurement device adopts RS485 interface communication method, which is converted into fiber optic communication signals through photoelectric converters, and realizes remote communication with the upper computer system composed of remote main control room, on-site monitoring devices, njl., to improve the reliability and anti-interference ability of the communication system.

A complete temperature measurement scheme was designed based on fluorescence ifayibha optic umlinganiselo wobushushu technology and combined with substation equipment. After experimental verification, the temperature measurement range of the temperature measurement system reaches -40 ℃ to 200 ℃, with an accuracy of 1 ℃, which meets practical requirements. The temperature measuring device has the characteristics of low cost, ukusebenza okuzinzileyo, strong practicality, fast and stable response, and simple operation. The entire system operates reliably in harsh environments such as high temperature, uxinzelelo oluphezulu, strong magnetic field, and flammability and explosiveness, which is beneficial for the power industry