Solid-sealed polar pole with insulation and switch cabinet

A technology of isolating switch and solid-sealing pole, applied in the field of switchgear, can solve the problems of huge external size and insufficient compact structure, and achieve the effect of reasonable structure, small volume and high insulation performance

Active Publication Date: 2012-04-11
ZHUHAI COMKING ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing vacuum load switch uses solid-sealed poles to reduce the size, but the isolation switch and the vacuum load switch are set separately, the structure is still not compact enough, and the overall size is large

Method used

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  • Solid-sealed polar pole with insulation and switch cabinet
  • Solid-sealed polar pole with insulation and switch cabinet
  • Solid-sealed polar pole with insulation and switch cabinet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] see figure 1 with figure 2 , figure 2 It is a front view of the internal structure of the switchgear of the present invention, and the external frame 11 is removed. The switchgear 1 includes 2-way incoming line ring network cabinet 12 and 1-way outgoing line ring main unit 13. The outgoing line ring main unit 13 is equipped with a fuse barrel 2, and the incoming line ring main unit 12 is equipped with a cable connector 41 (see Figure 14 ) and current transformer 42 (see Figure 14 ). There are also A, B, and C three-phase busbar systems connecting the incoming line ring main unit 12 and the outgoing line ring main unit 13.

[0040] see image 3, The switchgear 1 includes a fuse cartridge 2 and a solid-sealed pole 3 with isolation. The fuse cartridge 2 includes a housing 23 with an opening and a cover 28 covering the opening, and a rubber sleeve 27 is used to seal between the opening and the cover 28 . The housing 23 is provided with a fuse 21 , a conductor 24 ...

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PUM

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Abstract

The invention provides a solid-sealed polar pole with insulation. The polar pole comprises a body, a vacuum load switch, an insulation switch and a view window, wherein the body is a solid insulator formed by the casting epoxy resin by an APG (alkyl polyglucoside) molding technology and provided with an empty cavity; the vacuum load switch is sealed in the body in a solid mode; the insulation switch is arranged in the empty cavity of the body; and the view window is arranged on the body, and is used for viewing the switching on and switching off states of the insulation switch. The vacuum load switch and the insulation switch are both arranged in the same solid-sealed polar pole, thus the structure is reasonable, the volume is small, and the insulation performance is high; and the view window provides an obvious and visible disconnection point for maintaining personnel, and the safety in the process of examining and repairing the device is ensured.

Description

technical field [0001] The invention relates to power transmission and distribution equipment in a power system, in particular to an isolated solid-sealed pole and a switchgear equipped with the solid-sealed pole. Background technique [0002] In the existing switchgear products, most of the insulation schemes use air insulation and SF6 gas insulation. There must be a certain safety distance between two objects that need to be insulated from each other. According to the breakdown distance of air under the high voltage of the transmission network, the net distance between phases and relative ground should not be less than 125mm, which will cause the switch The volume of the cabinet is relatively large and takes up a lot of space; SF6 gas is also widely used due to its excellent arc extinguishing characteristics, but SF6 gas can decompose toxic gases under the action of arc, which has a very bad impact on humans and the climate. SF6 gas is listed as one of the six restricted ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/045H02B1/04H02B1/20H02B1/18H01H33/66
CPCH02B13/01H01H33/66H02B13/045H02B1/18H01B1/20H02B1/04H01H2033/6665
Inventor 吴国成胡伟峰韦柳涛
Owner ZHUHAI COMKING ELECTRIC CO LTD
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