Breaker hydraulic operating mechanism fault diagnosis method and system based on oil pressure and oil level

The invention provides a circuit breaker hydraulic operating mechanism fault diagnosis method based on oil pressure and oil level, and the method comprises the steps: collecting high-pressure oil cylinder oil pressure YT data of a high-pressure oil cylinder in real time through an oil pressure sensor, collecting low-pressure oil cylinder oil level LT data of a low-pressure oil cylinder in real time through an oil level sensor, and collecting current C data of an energy storage motor in real time through a current transformer; initial data of the mechanism after maintenance are collected, oil pressure characteristic quantity, oil level characteristic quantity and current characteristic quantity are extracted from the initial data respectively, and the oil pressure characteristic quantity, the oil level characteristic quantity and the current characteristic quantity serve as an ideal database; high-pressure oil cylinder oil pressure YT data, low-pressure oil cylinder oil level LT data and energy storage motor c