Transformer DC Bias Online Monitoring System

Abstract

The invention provides a transformer direct current bias magnetic on-line monitoring system. The system includes a direct current bias magnetic monitoring device, a centralized display and control device and a background server; one end of the centralized display and control device is wirelessly connected with the direct current bias magnetic monitoring device, and the other end of the centralizeddisplay control and device is wirelessly connected with the background server; the direct current bias magnetic monitoring device is used for collecting the direct current bias magnetic monitoring data of a transformer and sending the same to the centralized display and control device, wherein the direct current bias magnetic monitoring data contain vibration, noise and neutral point current data; the centralized display and control device gathers the direct current magnetic bias monitoring data sent by the direct current bias magnetic monitoring device, displays the data locally, and uploadsthe direct current bias magnetic monitoring data to the background server; and the background server monitors the direct current bias magnetic condition of the transformer. The transformer direct current bias magnetic on-line monitoring system of the invention is easy to dismantle and repair; when the transformer direct current bias magnetic on-line monitoring system is repaired, a grounding baris not required to be disconnected, and the repair does not affect the safety of the system; the system can be applied to a condition in which space around the grounding bar is limited; and a wirelessdata transmission mode is adopted, so that troubles brought by wiring can be decreased.

Description

technical field [0001] The invention relates to the field of transformer monitoring, in particular to an on-line monitoring system for transformer DC bias. Background technique [0002] In recent years, as more and more direct current transmission lines have been put into operation, the problem of the impact of direct current transmission on AC transformers under the single-pole ground circuit and bipolar unbalanced operation mode has become increasingly prominent: it will cause the transformer vibration and noise to increase significantly, Problems such as iron core heating and resonance affect the life of the transformer and safe production. It has become the consensus of more and more experts and scholars to monitor and study the DC bias condition of the transformer so as to solve its influence on the transformer. Contents of the invention [0003] In view of the above problems, the present invention provides a transformer DC bias online monitoring system. [0004] Th...

AI Technical Summary

Problems solved by technology

[0002] In recent years, as more and more direct current transmission lines have been put into operation, the problem of the impact of direct current transmission on AC transformers under the single-pole ground circuit and bipolar unbalanced operation mode has become increasingly prominent: it will cause the transformer vibration and noise to increase significantly, Iron core heating, resonance and other problems affect the life of the transformer and safe production

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