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A transformer winding temperature measuring device

A technology for transformer windings and temperature measuring devices, which is applied to measuring devices, thermometers and instruments with physical/chemical changes, etc., can solve the problem that the winding temperature cannot be effectively measured, and achieve the effect of high measurement accuracy

Active Publication Date: 2016-09-07
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the temperature of the inner winding of the transformer cannot be effectively measured, the present invention provides a transformer winding temperature measuring device

Method used

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  • A transformer winding temperature measuring device
  • A transformer winding temperature measuring device
  • A transformer winding temperature measuring device

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Embodiment Construction

[0014] A transformer winding temperature measurement device, comprising an interface board 4 fixed on the transformer box 2, a fiber grating temperature sensor 1 and a fiber grating demodulator 7 embedded between the inner windings 9 of the transformer, and the board surface of the interface board 4 The optical fiber connector 8 is also fixed on the optical fiber grating temperature sensor 1. The optical fiber connector joint on the end of the optical fiber grating temperature sensor 1 extends out of the transformer box 2 and is connected to one end of the optical fiber connector 8 on the interface board 4. The optical fiber grating demodulator 7 passes The optical fiber 6 is connected to the other end of the optical fiber connector 8 on the interface board 4.

[0015] In the above-mentioned transformer winding temperature measurement device, a sealing ring 3 is also cushioned between the interface board 4 and the transformer box 2.

[0016] In the above-mentioned transformer windi...

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PUM

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Abstract

The invention relates to a measuring device for the temperature of the inner winding of a transformer, in particular to a temperature measuring device for a transformer winding, comprising an interface board fixed on the transformer box, an optical fiber grating temperature sensor and an optical fiber grating demodulator embedded between the inner windings of the transformer The fiber optic connector is also fixed on the interface board, the fiber optic connector on the end of the fiber grating temperature sensor extends out of the transformer box and is connected to one end of the fiber optic connector on the interface board, the fiber grating demodulator Connect the other end of the optical fiber connector through the optical fiber and the interface board. The transformer winding temperature measuring device provided by the invention can realize online safety monitoring of the winding temperature, is free from strong electromagnetic interference in the transformer, and has high measurement accuracy, which solves the problem that the winding temperature inside the transformer cannot be effectively measured.

Description

Technical field [0001] The invention relates to a measuring device for the temperature of the internal winding of a transformer, in particular to a temperature measuring device for the winding of the transformer. Background technique [0002] In power industry equipment, large transformers play an important role in voltage and current conversion and power transmission. Their performance directly affects the safe and stable operation of the entire power system. Because the transformer has been operating at full load for a long time and adopts a fully enclosed structure, it often causes heating in various parts of the transformer. In many cases, the staff cannot measure certain narrow positions inside the transformer, especially on the windings that frequently heat up. If the transformer is operated for a long time, it will cause the aging of heating components and directly threaten the safety of the entire power grid; the transformer winding temperature determines the service life...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/32G01K11/3206
Inventor 韩涛闫俊杰赵磊刘锦江马龙飞徐峰黄芳萍裴长龙张晓东陈长栋徐建贾春杰孔明
Owner STATE GRID CORP OF CHINA
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