Transformer Temperature Measuring Resistance Device and Its Protective Cover

A temperature measuring resistance and transformer technology, which is applied to transformer/inductor parts, measuring devices, electrical devices, etc., can solve the problems of reducing the safe operation coefficient of the transformer, and achieve a simple and ingenious structure, convenient installation, and low manufacturing costs. Effect

Active Publication Date: 2015-12-23
CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, before the transformer stops running and replaces the temperature measuring resistor, it is impossible to monitor the temperature of the transformer oil in real time, which greatly reduces the safe operation coefficient of the transformer.

Method used

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  • Transformer Temperature Measuring Resistance Device and Its Protective Cover
  • Transformer Temperature Measuring Resistance Device and Its Protective Cover
  • Transformer Temperature Measuring Resistance Device and Its Protective Cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (Example 1, the protective cover of the transformer temperature measuring resistance device)

[0040] See Figure 1 to Figure 3The protective cover of the transformer temperature measuring resistance device in this embodiment includes a housing 1 and a mounting piece 2 connected to the housing 1; The shell 1 is a spherical crown with an opening downwards, and is made of stainless steel. The mounting piece 2 is arranged horizontally along the left and right directions, and is made of stainless steel plate material, including a rectangular plate portion 21, a first arcuate plate portion 22 connected to the left side of the rectangular plate portion 21 from the left, and a first arcuate plate portion 22 connected to the rectangular plate portion 21 from the right. The second arcuate plate portion 23 on the right side. The rectangular plate portion 21 is provided with a mounting through hole 24 along the vertical axis of the central axis, and the vertical axis of the moun...

Embodiment 2

[0041] (Example 2, transformer temperature measuring resistance device)

[0042] See Figure 4 , The transformer temperature-measuring resistance device of this embodiment includes a transformer casing 3, a temperature-measuring resistance 4, a rubber sealing ring 5, and the protective cover 10 (hereinafter referred to as the protective cover) of the transformer temperature-measuring resistance device obtained in Example 1.

[0043] The transformer shell 3 is provided with a shell main body 30, a temperature measuring resistance mounting pile 31 and a temperature measuring box 32; the shell body 30 of the transformer shell 3 is provided with a circular temperature measuring port with an upward opening, and the temperature measuring resistance mounting pile 31 is up and down. It is cylindrical in shape, and the central through hole of the temperature measuring resistance mounting pile 31 is an inner screw hole. The temperature measuring resistance mounting pile 31 is sealed and ...

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PUM

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Abstract

The invention relates to a protective cover for a temperature measuring resistance device of a transformer, which comprises a shell and a mounting piece connected to the shell. The shell is a spherical crown with an opening downward; the mounting piece is in the shape of a plate. The mounting piece is located on the edge portion of the bottom of the housing and in the front-to-rear middle of the housing. The center of the mounting piece is provided with a mounting through hole. The invention also relates to a transformer temperature measuring resistance device, which includes a transformer shell, a temperature measuring resistance, a rubber sealing ring and the aforementioned protective cover. The transformer shell is equipped with a temperature measuring resistance mounting pile, and the rubber sealing ring is placed on the top of the temperature measuring resistance mounting pile. The through hole and the central through hole of the rubber sealing ring extend into the transformer casing, and are screwed together with the temperature measuring resistance mounting pile so as to fix the temperature measuring resistance on the transformer casing. Therefore, the protective cover can prevent the rubber sealing ring from being exposed to the sun and rain, thereby improving its service life.

Description

technical field [0001] The invention relates to a temperature-measuring resistance device and a protective cover for a transformer, in particular to a temperature-measuring resistance device and a protective cover for a transformer of 110kV and above. Background technique [0002] On transformers of 110kV and above, one or more temperature-measuring resistors are generally installed, and the temperature-measuring resistors monitor the oil temperature of the transformer in real time. When the transformer oil temperature rises abnormally and exceeds the set value, the transformer measurement and control device will send out an alarm signal. The normal oil temperature of the transformer is very important to the operation of the transformer, and the abnormal rise of the oil temperature will affect the normal operation of the transformer. [0003] See Figure 4 , the temperature measuring resistor 4 on the existing transformer is inserted into the transformer oil 6 of the temper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/00G01K1/08
CPCH01F27/00H01F27/402G01K1/08G01K7/16
Inventor 蒋越彭宏芬朱建敏程时平
Owner CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER
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