Fluorescencinio pluošto optinės temperatūros matavimo taikymas ir sprendimas elektros sistemoje

FJINNO company has developed a temperature measurement scheme using fluorescent optical fiber technology, based on the temperature measurement characteristics of substation equipment. Nutarė 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, Izoliacijos reikalavimai yra aukšti, ir elektromagnetiniai trukdžiai yra stiprūs. They cannot directly measure the hot spot temperature inside electrical equipment. Taip, it is necessary to find a method that can be applied to hot spot temperature measurement of power systems and electrical equipment.

Fluorescencinio pluošto optinio pluošto temperatūros matavimas technology can solve the problem of hot spot temperature measurement in power equipment. Jis pasižymi aukštos įtampos varžos savybėmis, aukšta izoliacija, ir atsparumas elektromagnetiniams trukdžiams, 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. Tarp jų yra:, 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.

Nutarė fluorescence fiber optic temperature measurement 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, aukštos įtampos skirstomieji įrenginiai, aukštos įtampos šynos, kabelių galvutės, Etc. The upper computer system consists of a main control room, on-site monitoring devices, Etc. The fiber optic temperature measurement device adopts RS485 interface communication method, kuris fotoelektriniais keitikliais paverčiamas šviesolaidinio ryšio signalais, and realizes remote communication with the upper computer system composed of remote main control room, on-site monitoring devices, Etc., to improve the reliability and anti-interference ability of the communication system.

A complete temperature measurement scheme was designed based on fluorescence fiber optic temperature measurement technology and combined with substation equipment. After experimental verification, the temperature measurement range of the temperature measurement system reaches -40 ℃ to 200 °C, with an accuracy of 1 °C, atitinkanti praktinius reikalavimus. Temperatūros matavimo prietaisas pasižymi mažomis sąnaudomis, stabilus veikimas, stiprus praktiškumas, fast and stable response, ir paprastas valdymas. Visa sistema patikimai veikia atšiaurioje aplinkoje, pavyzdžiui, aukštoje temperatūroje, aukštas slėgis, stiprus magnetinis laukas, degumas ir sprogumas, which is beneficial for the power industry

Šviesolaidinis temperatūros jutiklis, Pažangi stebėjimo sistema, Paskirstytas šviesolaidinis gamintojas Kinijoje