Method and system for crack diagnosis of air cell

Abstract

A method and system for crack diagnosis of an air cell are provided, which can be used for early warning of crack occurrence on an air cell in an oil storage device of a transformer. The system includes a sensing module, an analysis device, and a diagnostic device. The sensing module is disposed on the oil storage device to acquire status data of the oil storage device within at least one period of time. The analysis device is connected to the sensing module to establish a correlation relationship based on the status data, which is defined as a conversion relationship between an air parameter and oil temperature. The diagnostic device is connected to the analysis device, and is configured to perform early warning of crack occurrence on the air cell during operation of the transformer according to the conversion relationship between the air parameter and oil temperature.

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