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Transformer cannula test device and its test method

A technology of transformer bushing and test device, applied in the field of transformers, can solve the problems of quality and safety hazards, and achieve the effect of guaranteeing quality, guaranteeing use and guaranteeing safety

Inactive Publication Date: 2006-01-11
TBEA SHENYANG TRANSFORMER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, for transformers using oil-sulfur hexafluoride bushings, the method of replacing oil-sulfur hexafluoride bushings with oil-air bushings of the same voltage level is often used in the test. Although the desired test results can be obtained, However, the oil-sulfur hexafluoride bushing cannot stand the test of the transformer together, leaving hidden dangers to the quality and safety

Method used

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  • Transformer cannula test device and its test method
  • Transformer cannula test device and its test method
  • Transformer cannula test device and its test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the composition of the present invention is as follows: the top of the oil-sulfur hexafluoride bushing 2 is electrically connected to the tail of another oil-air bushing 4 of the same voltage level, and a pressure equalizing shield 3 is provided at the joint of the two bushings. The outside of the shielding cover 3 is provided with an external rising seat 5 to cover and seal it for oil loading, and the lower part of the transformer oil-sulfur hexafluoride bushing is installed on the high-voltage outgoing line rising seat 1 .

[0029] The top of the oil-sulfur hexafluoride bushing 2 is provided with a wiring board, and the pressure equalizing shield 3 is provided with a wiring board.

Embodiment 2

[0031] Such as image 3 As shown, it is a diagram of an insulation structure at the junction of two bushings, oil-sulfur hexafluoride

[0032] The top of the bushing 2 is electrically connected to the tail of another oil-air bushing 4 of the same voltage level through the connector 12 and the lead cable 13. The joint of the two bushings is provided with copper shielding and outsourcing insulation 10, and the copper shielding and outsourcing insulation 10 A strut 11 is provided on the outer wall of the housing, and an insulating cylinder 14 is provided outside it.

Embodiment 3

[0034] Such as Figure 4 As shown, it is another insulation structure diagram of the junction of the two bushings. In order to meet the installation requirements of the three-phase transformer test bushing, the specific connection method is basically the same as that of Example 2, the difference lies in the lead cable 13, copper shielding and outsourcing The insulation 10 and the insulation cylinder 14 are respectively in a corresponding curved shape.

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Abstract

The present invention relates to a transformer bushing test equipment and its testing method. Under the condition of ensuring that the transformer component (specially, transformer oil-sulphur hexafluoride bushing) is normally mounted said invention makes said test. Said invention provides the concrete steps of said testing method by utilizing oil-air bushing and shielding case, etc. It can simultaneously test oil-SF6 bushing and transformer so as to ensure product quality and safety for use.

Description

technical field [0001] The invention relates to a transformer, in particular to a device and method for testing a transformer and an oil-sulfur hexafluoride bushing. Background technique [0002] At present, for transformers using oil-sulfur hexafluoride bushings, the method of replacing oil-sulfur hexafluoride bushings with oil-air bushings of the same voltage level is often used in the test. Although the desired test results can be obtained, However, the oil-sulfur hexafluoride bushing cannot stand the test together with the transformer, leaving a hidden danger to the quality and safety. Contents of the invention [0003] The object of the present invention is to provide a transformer bushing test device and its test method in order to enable the oil-sulfur hexafluoride bushing and the transformer to be tested simultaneously, which can not only ensure that the oil-sulfur hexafluoride bushing is installed On the transformer, and can achieve the same experimental results....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 赵静
Owner TBEA SHENYANG TRANSFORMER GRP CO LTD
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