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Current transformer

A technology of current transformer and conductive tube, which is applied in the direction of inductor, inductor/transformer/magnet manufacturing, transformer/inductor coil/winding/connection, etc. It can solve the problems of poor insulation level of transformer and difficult secondary molding, etc. To achieve the effect of ensuring insulation level, improving production efficiency and reducing partial discharge

Pending Publication Date: 2019-04-05
XIAMEN TAOFU PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a current transformer to at least solve the problems in the prior art that the insulation level of the transformer itself is poor and it is not easy for secondary molding

Method used

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Embodiment Construction

[0020] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the present invention, rather than Full examples.

[0021] The embodiment of the present invention discloses a current transformer, such as figure 1 , figure 2 As shown, it includes a coil 1, a conductive tube 2, a low-voltage shield 3, and an insulator 4. The coil 1, the conductive tube 2, and the low-voltage shield 3 are all located in the insulator 4, and the low-voltage shield 3 is a cylinder with two ends open. The low-voltage shield 3 is inserted into the coil 1, the low-voltage shield 3 is set outside the conductive pipe 2, the insulator 4 is made of epoxy resin, and the insulator 4 is provided with a first connection hole 41 , the second connection hole 42 , the first connection hole 41 and the secon...

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PUM

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Abstract

The invention provides a current transformer. The current transformer comprises a coil, a conductive tube, a low-voltage shielding member and an insulator, wherein the coil, the conductive tube and the low-voltage shielding member are located in the insulator; the low-voltage shielding member is a tubular tube with two open ends; the low-voltage shielding member is inserted into the coil; the low-voltage shielding member is sleeved outside the conductive tube; the insulator is made of epoxy resin; a first connecting hole and a second connecting hole are disposed in the insulator; and the firstconnecting hole and the second connecting hole are respectively connected to two ends of the conductive tube. With the current transformer provided by the invention, the problems in the prior art that the insulation level of the transformer is poor and over-molding of the transformer is difficult are effectively solved.

Description

technical field [0001] The invention relates to a current transformer and belongs to the field of high-voltage electrical equipment. Background technique [0002] The current transformers in the current market generally cover the coils on the conductive tubes or conductive rods and then cast them with epoxy resin. Because the curing time of the casting process is long, the production efficiency of the current transformers is very low. In addition, the coil in the transformer is generally made of copper wire, and the turns of the coil are wrapped with enamelled wire. Its irregularity will easily affect the casting quality of the current transformer and the insulation level of the current transformer itself, especially The problem of partial discharge is not easy to control. Furthermore, primary and secondary integration is a major trend in the development of power equipment. It is already a trend in the insulation industry to press-inject current transformers and voltage tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/32H01F27/36H01F38/30H01F41/00H01F41/12
CPCH01F27/324H01F27/36H01F38/30H01F41/00H01F41/125
Inventor 江涛黄艳晶
Owner XIAMEN TAOFU PRECISION MACHINERY