Application of Air Gap Sensor for Improved Fault Detection and Diagnostics Tools for Hydrogenerators Condition Monitoring Systems

In the paper a present results, which are devoted to the system of monitoring the technical condition and the process of detecting defects of the hydrogenerator based on the control of mechanical defects with air gap sensor. A description of the operation of defect identification tools based on the identification of their characteristics is given. Application of the methods is impossible without the construction of appropriate mathematical models that reflect in detail the main physical processes occurring in the power equipment or in its separate structural unit. The structure of the technical condition control system with additional air gap sensors is given. The development of an air gap sensor for the control system is considered. The use of air gap sensors in the structure of the control system for measuring the parameters of mechanical defects, which allows detecting machine defects at an earlier stage of their development.