MONITORING OF THE TEMPERATURE AND GEOMETRY OF THE POWER TRANSFORMER WINDINGS. FORMULATION OF THE PROBLEM OF SCIENTIFIC RESEARCH

Abstract

Power transformers (PT) play a fundamental role in power transmission systems from source to consumer and belong to the class of the most important and expensive equipment used in the power industry. In this regard, diagnosing their defects and monitoring parameters on site provides many advantages to ensure reliable transmission of electricity. Immunity to electromagnetic interference, insulation resistance, high sensitivity and resolution, as well as small dimensions of fiber optic sensors (FOS) make them very attractive for use in systems for monitoring the reliability parameters of PT. The widest range of applications in PT found FOS of temperature, humidity and winding deformation. The article presents a brief analysis of FOS of temperature and control of the geometry of the PT windings, their advantages and disadvantages are noted, and the task of scientific research is set for the development of a new type of sensors with microwave photonic address interrogation - combined addressed fiber Bragg structures (AFBS) of phase-wave type and temperature control and the geometry of the windings monitoring systems based on them. The directions of scientific research are determined to achieve the research goal - improving the metrological and technical and economic characteristics of fiber-optic multi-sensor systems for temperature control and changing the geometry of power transformer windings based on the use of combined type AFBS in them as sensitive elements and multiplexing elements.