Application of Fluorescent Fiber Optic Temperature Measurement System in High Voltage Environment

With the development of the power grid and the improvement of equipment technology, enclosed 10kV and 35kV system switchgear has been widely used in the power grid. The miniaturization and compact design, as well as the changes in the electrical environment, have made the phenomenon of overheating inside the switchgear a common abnormal state in the use of switchgear. Therefore, in some heavy load lines, there is a common problem of excessive temperature rise in the main diversion parts of the switchgear;

Overheating faults, insulation faults, and mechanical faults in high-voltage equipment are important causes of power system safety accidents, and the frequency of overheating faults accounts for more than 50% of the total number of accidents. Abnormal temperature rise in high-voltage distribution equipment will inevitably cause an increase in contact resistance, equipment aging, insulation degradation, conductor melting, and in severe cases, it will cause ground short circuits, secondary to phase short circuits, causing equipment damage, power interruption, and even serious personal, power grid, and equipment accidents.

These malignant accidents not only bring serious economic losses to power companies, but also may cause incalculable adverse social impacts. Due to the frequent and increasing occurrence of overheating faults, temperature rise monitoring is necessary for components that are prone to overheating faults. Currently, social development has also put forward higher safety and quality requirements for the entire power supply process. Monitoring the operating temperature of distribution devices is also an important issue in the construction of smart grids. Therefore, it is necessary to install relevant temperature rise fluorescent fiber optic online monitoring devices in distribution devices, so that power companies can take targeted preventive measures and improve the level of safe power supply;

The fluorescence fiber optic temperature measurement system has the characteristics of simple detection circuit scheme, low cost, fast response speed, suitable for large-scale promotion, and has the characteristics of anti electromagnetic interference, small volume, and long service life, demonstrating the feasibility and effectiveness of fluorescence afterglow temperature measurement.

The fluorescence fiber optic temperature measurement system that can be used in power systems, using FJINNO's independently developed fiber optic temperature measurement sensor technology, has successfully solved the problem of significantly improving measurement accuracy.

The fluorescence fiber optic temperature measurement system adopts the FJINNO one-stop temperature solution, which is suitable for high-precision and wide range measurement applications, and can achieve real-time measurement with high voltage resistance and anti-interference.

In the rapid development of electrical power in the new era, the stability of power equipment is closely related to people's lives, so there are higher requirements for the stable operation of power equipment such as switchgear and dry-type transformers. The temperature of high-voltage electrical equipment within the normal range is an important aspect of whether switchgear and other equipment operate normally, and it is also the reason why switchgear equipment is more prone to failure. Therefore, the fluorescence fiber optic temperature measurement online temperature monitoring system for high-voltage electrical equipment has good insulation, high accuracy, fast response ability, and strong anti-interference ability;

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