A method and system for online detection of working state of electrical equipment

Abstract

The invention is suitable for the electric equipment detection improvement technology field and provides a method used for carrying out on-line detection on an electric equipment work state. In the method, a current sensor and a voltage sensor are used to carry out data acquisition. The method comprises the following steps of A, collecting disturbance signal data of on, off and a work state of electric equipment to calculate and analyze so as to obtain a training sampling characteristic value and establish a relation database; B, carrying out voltage and current signal sampling processing on a power supply system when the electric equipment works so as to acquire an on-line disturbance signal; C, calculating and analyzing the on-line disturbance signal so as to acquire a characteristic value; and D, matching the characteristic value of the on-line disturbance signal and the training sampling disturbance signal characteristic value in the relation database so as to determine the state of the electric equipment and returning to the step B so as to carry out circulation. By using the method, usage is convenient, cost is low and universality is good.

Description

technical field [0001] The invention belongs to the technical field of detection and improvement of electrical equipment, and in particular relates to a method and system for online detection of the working state of electrical equipment. Background technique [0002] At present, there is generally no way to directly and accurately judge the working status of the equipment through the total power supply current and voltage signal, especially when there are many electrical equipment running in a certain field, it is impossible to distinguish the working status of these equipment. At present, some important equipment are generally monitored by special monitoring equipment, and this monitoring is completed through digital communication between the monitoring equipment and the monitored equipment. [0003] The problem with this solution is that there is currently no general device or method to monitor the state of general electrical equipment. The status monitoring of some speci...

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Problems solved by technology

[0003] The problem with this solution is that there is currently no universal device or method to monitor the status of general electrical equipment

The status monitoring of some special equipment is also completed through digital communication between the monitoring equipment and the monitored equipment, which is costly and complicated to operate.

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