Fiber optic temperature monitoring system for high-voltage busbars and contacts

In the course of work, a fiber optical system for the temperature of high-voltage busbars, conflicts and other loaded nodes of electrical networks was developed based on the control of fiber Bragg gratings. The system has a temperature determination error of ±1 °C and a resolution of 0.1 °C. Observed temperature changes for high voltage applications have also been considered and observed. The main advantage of the developed system is the ability to quickly use export-optical deliveries as an increase in the level of the system, which in turn is associated with a significant cost of one channel measurement and use per system deployment. In the course of study, the sensor part of the system was developed in the form of two temperature sensors, a sensor interrogation device and its software. Further, a number of experiments on detection of sensors calibration curves was carried out, studies of sensors were carried out for the occurrence of a breakdown between phases, trial operation was carried out at the operating object for selecting electrical networks for one month. The results of the studies show that the system can perform its functions in various operating conditions, the ways of developing the system functions were outlined, which consist in the number of measurements and the use of the system to control the wear of superconducting radiation on contact groups.