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High-frequency testing transformer

A technology for testing transformers and transformers, applied in the field of transformer manufacturing, can solve problems such as hidden dangers in the use of transformers, inability to test the withstand voltage of the transformer, and inability to test the high-frequency overvoltage state of the transformer, and achieve the effect of convenient use and simple structure.

Inactive Publication Date: 2012-08-22
ZHENJIANG TIANLI TRANSFORMER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power frequency withstand voltage test cannot test the withstand voltage of the transformer in a high-frequency state after it is put into operation, and the simulated load cannot test the high-frequency overvoltage state of the transformer after it is put into operation
This will bring hidden dangers to the use of transformers.

Method used

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Embodiment Construction

[0009] A kind of high-frequency test transformer of the present invention, see figure 1 , the transformer includes a core 1, a primary winding 2, a secondary ladder winding 3, a high voltage lead 4 and a low voltage lead 5, the primary winding 2 and the secondary ladder winding 3 are wound on the core 1 frame. The iron core 1, the primary winding 2 and the secondary stepped winding 3 are set in the transformer oil tank 7, and the transformer oil tank 7 is filled with transformer oil 6; There is a low-voltage insulating bushing 51, and both the high-voltage insulating bushing 41 and the low-voltage insulating bushing 51 are arranged on the transformer oil tank 7 and positioned outside the transformer oil tank.

[0010] A base 8 is provided in the transformer oil tank 7 , and the iron core 1 is mounted on the base 8 . The iron core 1 is made of ultrafine amorphous alloy material and has a single-phase horizontal structure. Wind the primary winding and the secondary ladder wind...

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Abstract

The invention discloses a high-frequency testing transformer. The high-frequency testing transformer comprises an iron core, a primary winding, a secondary step-shaped winding, a high-voltage lead wire and a low-voltage lead wire, wherein the primary winding and the second step-shaped winding are wound on a frame column of the iron core; the iron core, the primary winding and the second step-shaped winding are arranged in a transformer oil tank; transformer oil is injected in the transformer oil tank; a high-voltage insulating casing pipe is sleeved outside the high-voltage lead wire; a low-voltage insulating casing pipe is sleeved outside the low-voltage lead wire; and the high-voltage insulating casing pipe and the low-voltage insulating casing pipe are arranged on the transformer oil tank and located outside the transformer oil tank. The high-frequency testing transformer provided by the invention has the advantages of simple structure and convenience in use, and can meet requirements of a withstand voltage test of various high-frequency electric transformers.

Description

technical field [0001] The invention belongs to the field of transformer manufacturing, in particular to a high-frequency test transformer suitable for high-frequency power transformer tests. Background technique [0002] With the application of high-frequency electrostatic dust removal technology and the development of DC flexible power transmission and transformation technology, the production of high-frequency power transformers has gradually expanded. At present, there is no supporting equipment for high-frequency power transformer withstand voltage test and other equipment. At present, special power frequency withstand voltage test equipment is used for factory test, or simulated load operation is used instead of withstand voltage test. The power frequency withstand voltage test cannot test the withstand voltage of the transformer in the high-frequency state after it is put into operation, and the simulated load cannot test the high-frequency overvoltage state of the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F30/06H01F27/30H01F27/32H01F27/14H01F27/24G01R31/04
Inventor 谢余江
Owner ZHENJIANG TIANLI TRANSFORMER
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