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High current ultra high voltage bushing

An ultra-high voltage, high current technology, applied in the direction of electrical components, switchgear, switchgear settings, etc., can solve the problems of non-compliance with the optimal design requirements, increase product cost, price increase, etc., to facilitate product standardization and uniform heat generation. , the effect of reducing the calorific value

Active Publication Date: 2017-01-25
HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the space size of the porcelain sleeve is increased, its price will be greatly increased, which will undoubtedly increase the cost of the product, which does not meet the requirements of the optimal design

Method used

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  • High current ultra high voltage bushing
  • High current ultra high voltage bushing

Examples

Experimental program
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Embodiment Construction

[0018] Depend on figure 1 and figure 2 The high-current ultra-high voltage bushing shown includes the porcelain sleeve 14 and the center conductor 16 set in the porcelain sleeve 14. Both the porcelain sleeve 14 and the center conductor 16 are vertically arranged, and the porcelain sleeve 14 is conical with a narrow top and a wide bottom. The center conductor 16 is a pipe body, and the center conductor 16 is a high-conductivity copper pipe body. The center conductor 16 passes through the inner cavity of the porcelain sleeve 14 to realize the insulation of high potential to ground and the introduction of large current.

[0019] Between the top port of the central conductor 16 and the top port of the porcelain sleeve 14, a terminal board 19 is covered. The terminal board 19 is provided with a vent hole 3. 19 and the center conductor 16 are in one piece structure, the terminal board 19 is connected with the porcelain sleeve 14 by bolts and the terminal board 19 protrudes from on...

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Abstract

The invention discloses a large-current ultra-high-voltage sleeve which comprises a ceramic bushing and a central conductor arranged in the ceramic bushing. A high-voltage grading ring is arranged outside the top end of the ceramic bushing, the central conductor is tube body, the upper portion of the central conductor is provided with a convection hole, and a wiring terminal board covers the position between a top opening of the central conductor and a top opening of the ceramic bushing and provided with an air vent. The air vent is vertically opposite to the top opening of the central conductor, the upper side of the wiring terminal board is provided with a heat dissipation cover covering the air vent of the wiring terminal board, and the heat dissipation cover is used for increasing the heat dissipation area of the top of the sleeve. The large-current ultra-high-voltage sleeve can meet the large-current requirement and is simple in structure and convenient to install.

Description

technical field [0001] The invention relates to the bushing field, in particular to a high-current ultra-high voltage bushing for a 550kV high current of 6300A. Background technique [0002] At present, with the continuous progress of high-voltage technology, higher requirements are put forward for GIS equipment. GIS products are developing in the direction of large capacity and miniaturization at each voltage level. More and more power grid companies have put forward higher requirements for GIS products, breaking through the traditional 550kV GIS rated current of 3150A or 4000A, extending to a higher level of current 6300A. Most of the porcelain bushings in the bushings are purchased from outside, and are produced by professional manufacturers, such as NGK, whose price accounts for 80% of the whole bushing price. If the space size of the porcelain sleeve is increased, its price will be greatly increased, which undoubtedly increases the product cost and does not meet the o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B13/035
Inventor 高延峰张五杰刘彦军张书琴夏英毅季新明陈瑞旭
Owner HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR
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