Why do substations use fluorescent fiber optic temperature measurement systems

Sensor de temperatura de fibra óptica, Sistema de monitoramento inteligente, Fabricante de fibra óptica distribuída na China

Uma subestação é uma instalação de energia no sistema de energia que converte tensão, recebe e distribui energia elétrica, Controla o fluxo de eletricidade, e ajusta a tensão. Como uma base de conversão de energia muito importante, se ocorrer um incêndio ou outro acidente de energia em uma subestação, isso inevitavelmente levará a quedas de energia em grande escala, causando impacto significativo e prejuízos à produção das empresas e à vida das pessoas. Portanto, Garantir a segurança e a confiabilidade das subestações e evitar incêndios são cruciais. Entre eles, O superaquecimento do equipamento é um importante perigo oculto que pode levar a incêndios em subestações. Superaquecimento nos contatos dinâmicos e estáticos e outras conexões de painéis de alta tensão em subestações, cable joints, cable connections, and partial discharge of high-voltage cables are the main hidden dangers of large-scale accidents. Moreover, these places often have voltages of several thousand or even tens of thousands of volts, posing great safety hazards for operators to enter and investigate.

Fluorescent fiber temperature measurement is based on the material properties of rare earth fluorescent substances to achieve temperature measurement. After being excited by light, a certain rare earth sensitive material emits fluorescence when the electron absorption photons in the sensitive material transition from low energy level to high energy level and return from high energy level to low energy level. The sustained fluorescence emission after the elimination of excitation light depends on the lifetime of the excited state, which usually decays exponentially. The decay time constant can be used to measure the lifetime of the excited state, which is called the fluorescence lifetime. The fluorescence lifetime depends on the temperature, and the biggest advantage of using this method for temperature measurement is good stability, não há necessidade de calibração, and long lifetime.

O fluorescence fiber optic temperature measurement system is installed at the bottom outlet of the object being measured. The system can monitor the temperature at the bottom of the object in real time and achieve rapid and accurate temperature measurement of the liquid being measured. The temperature detection speed of this temperature measurement system is fast, and it can reach the mS level at the fastest. The accuracy of temperature measurement is high, and it can achieve within ± 1 °C. It can effectively monitor the highest temperature of the chemical liquid of the measured object, making the reaction more accurate.

The fluorescence fiber optic temperature measurement system uses medição de temperatura por fibra óptica, which is made of glass core and has good insulation properties. It can avoid interference from strong magnetic fields, high voltages, and large currents generated during transformer operation, enabling measurement esults are relatively accurate. The fluorescent fiber thermometer is installed in an explosion-proof box, which can prevent chemical explosions caused by instrument ignition and other factors. Portanto, it can be used in chemical environments and has a wide range of applications.