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Terminal box convenient in carrying out electrified replacement, and operation method thereof

A live replacement, terminal box technology, applied in the direction of electrical components, etc., can solve the problems of easy sparks in the cutting process, inability to complete live disassembly, and large safety risks, so as to reduce the rapid penetration of water vapor and avoid the safety risks of miswiring. The effect of improving safety

Active Publication Date: 2019-03-15
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JINHUA POWER SUPPLY CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a terminal box that is easy to replace with electricity, which solves the problem that when replacing the existing terminal box, cutting equipment needs to be used to cut the terminal box to complete disassembly. The operation is complicated, and sparks are prone to occur during the cutting process. Larger safety risk; and can not complete live disassembly, its time-consuming defect

Method used

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  • Terminal box convenient in carrying out electrified replacement, and operation method thereof
  • Terminal box convenient in carrying out electrified replacement, and operation method thereof
  • Terminal box convenient in carrying out electrified replacement, and operation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 , figure 2 , image 3 As shown, the present invention provides a terminal box that is convenient for live replacement, comprising: a box body 1, the bottom of the box body is provided with an opening 2; The top cover 4. The top of the box has a slot 5, and the upper end of the column is inserted into the slot.

[0040] The fixed frame includes four uprights 6 arranged in a rectangle; longitudinal side bars 7 are fixed on the uprights on both sides; an upper lateral side bar 8 and a lower side bar 8 are fixed on a pair of uprights on the front side or the rear side. Horizontal side bars 9, a fixed bottom bar 10 is arranged between the lower lateral bars on the front and rear sides, and a terminal frame 11 is fixed on the fixed bottom bar, and the fixed terminal frame includes a terminal vertical frame fixed on the fixed bottom bar 12 and terminal horizontal frame 13; the bottom of the column and the terminal vertical frame is fixedly connected to th...

Embodiment 2

[0045] A terminal box that is convenient for live replacement provided by the present invention includes: a box body, an opening is provided at the bottom of the box body; a fixing frame is provided inside the box body, and the fixing frame includes four upright columns arranged in a rectangular shape; Longitudinal side bars are fixed on the uprights on both sides; an upper lateral side bar and a lower lateral side bar are fixed on a pair of uprights on the front or rear side, and fixed Bottom bar, a terminal frame is fixed on the fixed bottom bar, and the fixed terminal frame includes a terminal vertical frame and a terminal horizontal frame fixed on the fixed bottom bar; the bottom of the column and the terminal vertical frame are fixedly connected to the ground;

[0046] The upper part of the terminal vertical frame is equipped with two parallel terminal horizontal frames, the width of the terminal horizontal frame is smaller than the width of the fixed frame; the fixed term...

Embodiment 3

[0048] The invention also discloses a method for operating the terminal box, which includes the following steps:

[0049] 1) Remove the fireproof mud and impurities in the terminal box, and remove the grounding wire;

[0050] 2) Release the nitrogen gas through the vent valve and the helium gas in the storage cavity through the control valve, so that the inner side of the insulating bag is close to the terminal frame, and at the same time, use the bracket car to fix the terminal frame and the insulating bag;

[0051] 3) Remove the box from bottom to top;

[0052] 4) Introduce nitrogen gas through the vent valve, so that the outer drum of the insulating bag is against the fixed frame and fill the storage cavity with helium through the control valve, remove the bracket cart; put the new terminal box on the outside of the fixed frame from top to bottom , so that the upper end of the column is inserted into the slot;

[0053] 5) Carry out fire prevention and sealing work in the ...

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Abstract

The invention provides a terminal box convenient in carrying out electrified replacement. The terminal box comprises a box body, wherein the bottom of the box body is provided with an opening; a fixedmount is arranged in the box body and comprises four stand columns which are rectangularly arranged; the stand columns positioned on two sides are fixedly provided with a longitudinal side rod; one pair of stand columns on the front side or the rear ide is fixedly provided with upper lateral side rods and lower lateral side rods; a fixed bottom rod is arranged between the lower lateral side rodsof the front side and the rear side and is fixedly provided with a terminal rack; the fixed terminal rack comprises a terminal vertical rack and a terminal horizontal rack, wherein the terminal vertical rack and the terminal horizontal rack are fixed on the fixed bottom rod; the stand columns and the bottom of the terminal vertical rack are fixedly connected to the ground; the upper part of the terminal vertical rack is provided with two parallel terminal horizontal racks; an insulation bag is sheathed out of the fixed terminal rack; helium is stored in the insulation bag; and the terminal horizontal rack is abutted against the insulation bag. The terminal box is provided with the fixed mount, so that the terminal rack is unlikely to shake in a disassembling process, the insulation bag full of the helium has good waterproof performance, the operation process of the terminal box is safe, and power failure does not need to be carried out in a reloading process.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a terminal box for live replacement and an operation method thereof. Background technique [0002] At present, the injection terminal box is a kind of interface device for switching construction lines, marking branch lines, and providing convenience for wiring and checking lines. In some cases, in order to facilitate construction and debugging, some more special products with more regular installation settings, such as short-circuit isolators, can be installed in the terminal box. With the continuous development of the power grid, there are more and more aging and rusty switch terminal boxes. The traditional process of replacing the switch terminal box is generally combined with power failure treatment, and the cables in the terminal box are removed and pulled away. Combined with the disconnection and connection of the secondary cable and the loop test, it generally takes th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G3/08
CPCH02G3/08H02G3/083
Inventor 金慧波杨云有赵寿生吕朝晖陈文通刘乃杰方旭光吴杰清郑晓明左晨吕施霖单鑫朱晨皓刘建敏潘铭航朱兴隆陈逸凡
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JINHUA POWER SUPPLY CO
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