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
CN102938290BActive Publication Date: 2015-12-23CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER
Publication Date
2015-12-23

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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.
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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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