Fault Diagnosis Method of Electrical Equipment and Its Apparatus According to the Change of Load Current Status

摘要

The disclosed invention relates to a method for diagnosing a failure of an electrical equipment in accordance with a change in the state of a load current and a device thereof, and calculating a state parameter for a load current supplied to each electrical equipment from a power stage, and based on the calculated state parameter. To determine whether there is a failure in the current electrical equipment. According to the present invention, a digital operation processing unit dedicated to signal processing implemented by a DSP chip (for digital signal processing) calculates a state parameter for a load current, and the mode determining unit breaks down the electrical equipment according to the state parameter calculated for each section. By judging whether or not it is suitable for applying to a failure diagnosis apparatus for a plurality of electrical equipment, it is useful to monitor the electrical equipment in real time.