Transformer oil temperature detection system

Abstract

The transformer oil temperature detection system includes an oil tank, a high-voltage coil and a low-voltage coil wound on the iron core, the upper part of the high-voltage coil is connected with the high-voltage insulating bushing on the oil tank, the low-voltage coil is connected with the low-voltage insulating bushing on the oil tank, and the upper part of the oil tank is also equipped with a The tap changer for adjusting the number of turns of the coil, the oil tank is filled with transformer oil; the oil tank is equipped with multiple ceramic heating plates, and the iron core, high-voltage coil, and low-voltage coil are wound with multiple thermal radiation optical fiber sensors, and the thermal radiation optical fiber sensors are respectively set in The number of thermal radiation optical fiber sensors is 2-4 in the upper, middle and lower parts of the iron core, high-voltage coil, and low-voltage coil; There is a ceramic layer, and multiple core heads are arranged on the upper part of the heating core, and the core heads are embedded in the ceramic layer; the beneficial effects are: simple structure, convenient use, accurate detection, and real detection of oil changes in the actual operation of the oil-immersed transformer.

Description

technical field [0001] The invention belongs to the technical field of an analog transformer overheating fault monitoring device, and in particular relates to a transformer oil temperature detection system. Background technique [0002] In the current power system, oil-immersed transformers often encounter high temperature or high humidity in the actual use environment. In this case, the transformer oil will heat up and decompose other substances from the oil. Some substances will damage the insulation of the transformer. It will cause considerable harm and seriously cause the internal short circuit of the transformer or even an explosion. The current detection method is to heat the transformer oil separately, and then detect the impurity components in it. This method only detects the influence of the heating body on the oil when it is heated, and there are differences in the time and temperature of the impurities produced by the actual transformer with iron core and coil. ...

AI Technical Summary

Problems solved by technology

[0002] In the current power system, oil-immersed transformers often encounter high temperature or high humidity in the actual use environment. In this case, the transformer oil will heat up and decompose other substances from the oil. Some substances will damage the insulation of the transformer. It will cause considerable harm and seriously cause the internal short circuit of the transformer or even an explosion.

The current detection method is to heat the transformer oil separately, and then detect the impurity components in it. This method only detects the influence of the heating body on the oil when it is heated, and there are differences in the time and temperature of the impurities produced by the actual transformer with iron core and coil. , unable to meet the actual detection needs

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