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Modification method of soft connection structure between transformer and gis power distribution device

A power distribution device and transformer technology, applied in the field of power transmission and transformation, can solve the problems of difficult construction, large economic loss, and high cost, and achieve the effects of shortening construction time, small economic loss, and short construction period

Active Publication Date: 2017-05-31
ZHENGZHOU HUALI INFORMATION TECH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a flexible connection structure and transformation method between a transformer and a GIS power distribution device in order to overcome the defects and deficiencies of the above-mentioned prior art such as difficult construction, long period, high cost, and large economic loss

Method used

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  • Modification method of soft connection structure between transformer and gis power distribution device
  • Modification method of soft connection structure between transformer and gis power distribution device
  • Modification method of soft connection structure between transformer and gis power distribution device

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with accompanying drawing description and specific embodiment:

[0035] According to the present invention, the transformation method of transforming the oil-gas bushing direct-connection arrangement of GIS substation into a soft bus comprises the following steps:

[0036] A: Recover SF6 gas for the gas chamber that needs to be transformed, and perform vacuum pumping and pressure relief treatment.

[0037] B: Remove the relevant grounding piece, use the correct SF6 protective equipment to open the hand hole cover, remove the GIS conductor, and confirm that all conductor connectors affecting the decomposition busbar barrel have been removed. Remove the L-shaped tube nut first, and then remove the straight tube nut. According to the actual situation on site, if the L-shaped pipe nut is installed firmly, the removal of the straight pipe nut will not affect the safety of the equipment, and the w...

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Abstract

The invention discloses an improved method of a transformer and GIS (gas insulated switchgear) power distribution device flexible connection structure. The improved method includes the steps: A, recovering gas; B, demounting a GIS bus drum and a support thereof; C, demounting an oil-gas sleeve and connecting equipment thereof; D, demounting an arrester base support; E, mounting a transformer air sleeve; F, mounting the an arrester base support and a GIS sleeve supporting seat; and G, mounting a tubular bus. The improved method is low in implementation difficulty, safe and reliable in operation, short in construction period and low in economic loss, and a transformer is kept in integral operation.

Description

[0001] Technical field: [0002] The invention relates to a construction method of a substation project, more specifically, a transformation method for transforming a transformer of a GIS substation and a GIS into a connection method of a pipe mother through direct connection arrangement of oil and gas bushings. It belongs to the technical field of power transmission and transformation. [0003] Background technique: [0004] Due to the nearby construction of the subway, CBD center and East Railway Station and other projects in the GIS substation, a large amount of groundwater was pumped out, which caused the foundation of the substation to subside. Since the station uses the GIS and the transformer to be directly connected through oil and gas bushings, due to the different foundation loads, the magnitude of the settlement is also inconsistent, which will cause great damage to the high-voltage and medium-voltage direct connection surfaces between the GIS and the transformer. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B3/00
Inventor 田凤兰石峰徐夏楠赵珩景中炤何天骥齐超亮赵勇苏迪杨琳
Owner ZHENGZHOU HUALI INFORMATION TECH
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