Online monitoring method and device for distribution transformer, computer equipment and storage medium

Abstract

The invention relates to an online monitoring method and device for a distribution transformer, computer equipment and a storage medium. The online monitoring method for the distribution transformer comprises the steps of acquiring a voltage waveform signal and a current waveform signal of each phase line in three phase lines on the low-voltage side of the distribution transformer; and then determining the reactance coefficient of the distribution transformer by combining simple mathematical calculation and statistical analysis, and judging the working state of the distribution transformer through the reactance coefficient. In the whole process, only the voltage waveform signal and the current waveform signal of each phase line in three phase lines on the low-voltage side of the distribution transformer need to be monitored and acquired in real time, the operation method is simple and easy to implement, the technical problem that an existing distribution transformer monitoring method cannot conduct online monitoring on the working state of the distribution transformer is solved, and the technical effect of improving the monitoring performance of the state of the distribution transformer is achieved.

Description

technical field [0001] The present application relates to the technical field of power grids, in particular to an online monitoring method, device, computer equipment and storage medium for distribution transformers. Background technique [0002] A transformer is a static electrical appliance that converts AC voltage and current according to the law of electromagnetic induction and transmits AC power. Distribution transformers are transformers that operate in the distribution network with a voltage level of 10 or 35kV and a capacity of 6300kVA or below to directly supply power to end users. . Due to the harsh climatic conditions or electrical environment in which distribution transformers are located, they are vulnerable to various external forces or short-circuit current impacts, which damage the insulation condition or mechanical strength of the windings, which may cause deformation, damage or even burning of the distribution transformer windings. , affecting the safety a...

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Problems solved by technology

[0004] Based on this, it is necessary to provide a distribution transformer online monitoring method, device, computer equipment and storage medium for the problem that the current distribution transformer monitoring method cannot monitor the working state of the distribution transformer online

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