CN207318545U - A kind of arrester Leakage Current table easily changes structure - Google Patents
A kind of arrester Leakage Current table easily changes structure Download PDFInfo
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- CN207318545U CN207318545U CN201721504405.4U CN201721504405U CN207318545U CN 207318545 U CN207318545 U CN 207318545U CN 201721504405 U CN201721504405 U CN 201721504405U CN 207318545 U CN207318545 U CN 207318545U
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- leakage current
- earthing member
- current table
- conductive contact
- arrester
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- 230000000694 effects Effects 0.000 claims abstract description 24
- 238000007906 compression Methods 0.000 claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Abstract
The utility model discloses a kind of arrester Leakage Current table easily to change structure, including the fixation conducting block for arranging, being installed under grounding lead row under grounding lead and arrester draws collets between lower row, is connected with collets, an and movable earthing member with top conductive contact surface and bottom conductive contact face, the middle part of the activity earthing member is hingedly installed and top is connected with compression spring, under compression spring effect, movable earthing member top conductive contact surface is contacted with fixed conducting block, and bottom conductive contact face is contacted with row under grounding lead.The technical solution adopted in the utility model, for risk present in replacement process, supporting installation mechanical pressure ground connecting device, solves the replacement security hidden trouble of leakage current table well, substantially reduces the security risk of staff.
Description
Technical field
It the utility model is related to electric power project engineering, and in particular to arrester Leakage Current table more changing device.
Background technology
Arrester is one of important protection equipment for ensureing safe operation of power system, its main function is limitation by circuit
The lightning surge transmitted or the internal overvoltage as caused by operation.And leakage current table is that examine arrester fine or not one is non-
Often important reference index.Because arrester is similar to insulator under normal conditions, without voltage, leakage current is at this time
Very little, approximately no more than 1mA.If current value becomes larger, illustrate that lightning arrester core body internal valve piece performance have dropped, pass through inspection
The situation of leakage current of an arrester meter reading can directly reflect the situation of arrester, and the safe operation for power grid plays
Important effect, so when leakage current of an arrester table breaks down, should the processing of replacement immediately.
Leakage current table installation form at this stage is between series connection access arrester low-pressure end and ground.Body is generally fixed
In in arrester bottom column, electric connecting member both ends use bolt direct attachment type.When leakage current table breaks down
, should be first in parallel with leakage current table using ground connection shorting stub when needing replacing, the leakage current during preventing from replacing is to the people that works
Member damages, then carries out leakage current table dismounting and more change jobs.
Since the normal conditions that more change jobs are powered progress, so there is certain danger to the safety of staff,
Interior completion is completed in a relatively short time so usually requiring that and replacing work.But since the conventional mounting means of leakage current table connects for bolt
Mode is connect, removes and installs and is not very convenient, meanwhile, the working environment of part leakage current of an arrester table is outdoor, due to
Long-term natural environment effect so that appearance situations such as bolt corrosion, quick harm is even more played for what is more changed jobs
Hinder, the security of staff is tested.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of arrester Leakage Current for ensureing to replace safety
Table easily changes structure, solves the replacement security hidden trouble of leakage current table.
In order to solve the above technical problems, the utility model adopts the following technical solution：A kind of arrester Leakage Current table is easy
Change under structure, including grounding lead and arrange, be installed under grounding lead row and arrester draws collets between lower row, is connected with collets
Fixation conducting block, and a movable earthing member with top conductive contact surface and bottom conductive contact face, the activity connect
The middle part of ground part is hingedly installed and top is connected with compression spring, and under compression spring effect, movable earthing member top conductive connects
Contacting surface is contacted with fixed conducting block, and bottom conductive contact face is contacted with row under grounding lead.
Preferably, further include promotion activity earthing member and compress the insulation jacking block of the compression spring, when insulation jacking block quilt
Promote, movable earthing member disconnects the contact with being arranged under fixed conducting block and grounding lead, and ground connection disconnects, when insulation jacking block is ejected
When, earth-continuity.
Preferably, the insulation jacking block includes acting on the lower service portion of Leakage Current table effect and with movable earthing member
Upper service portion, and upper service portion is vertical with lower service portion.
Preferably, the fixed conducting block is equipped with lower protrusion, and the activity earthing member, which is equipped with, protrudes above portion, convex under described
Go out portion and the portion of protruding above and be equipped with the conductive contact inclined-plane to cooperate.
The technical solution adopted in the utility model, for risk present in replacement process, supporting installation mechanical pressure connects
Ground attachment device, solves the replacement security hidden trouble of leakage current table well, substantially reduces the safety wind of staff
Danger.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the side structure schematic diagram of the utility model.
Fig. 2 is the dimensional structure diagram of the utility model.
Fig. 3 is the structure diagram of collets.
Fig. 4 is the structure diagram of fixed conducting block.
Fig. 5 is the structure diagram of upper clamping anchor ear.
Fig. 6 is the structure diagram of upper conductive rod.
Fig. 7 is the structure diagram of insulation jacking block.
Fig. 8 is the structure diagram of movable earthing member.
In figure：1-collets, 2-fixed conducting block, 21-lower protrusion, 3-above clamp anchor ear, 31-mounting portion,
32-clamp arm, 4-upper conductive rod, 41-circular hole, 5-leakage current table, 6-lower conductive rod, 7-it is lower clamp anchor ear, 8-absolutely
Edge jacking block, 81-lower service portion, 82-upper service portion, 9-compression spring, 10-movable earthing member, 101-stepped hole, 102-
Top conductive contact surface, 103-bottom conductive contact face, 104-pin hole, 11-arrester installation column, 111-installation are flat
Platform.
Embodiment
The technical solution of the utility model embodiment is explained with reference to the attached drawing of the utility model embodiment and
Illustrate, but following embodiments are only the preferred embodiment of the utility model, and it is not all.Based on the embodiment in embodiment,
Those skilled in the art obtain other embodiment on the premise of creative work is not made, and belong to the utility model
Protection domain.
As depicted in figs. 1 and 2, easy-to-replaceable arrester Leakage Current table external member, on arrester installation column 11, keeps away
Thunder device installation column 11 is equipped with the mounting platform 111 for being used for installing Leakage Current table 5.The easy-to-replaceable arrester of the present embodiment is let out
Dew ammeter external member is including being used to monitor the Leakage Current table 5 of leakage current of an arrester, being installed on row and arrester under grounding lead
Draw the collets 1 between lower row, the upper clamping anchor ear 3 being installed on collets 1, be installed on the lower grasping firmly on row under grounding lead
Hoop 7, and the upper conductive rod 4 for conducting electric current and lower conductive rod 6, one end of the upper conductive rod 4 are embraced with upper clamping anchor ear 3
Close and fix, the other end is connected with leakage current table 5, and one end of the lower conductive rod 6 is fixed with lower clamping 7 obvolvent of anchor ear, another
End is connected with leakage current table 5.
Wherein, the structure of the collets 1 with reference to shown in figure 3, in square, equipped with mounting hole.
Upper 3 structure of clamping anchor ear with reference to shown in figure 5, the upper anchor ear 3 that clamps is identical with the structure of lower clamping anchor ear 7, wraps
Mounting portion 31 and the clamp arm 32 arranged on 31 both sides of mounting portion are included, mounting portion 31 is equipped with mounting hole, for pacifying by screw
Dress, clamp arm 32 are equipped with obvolvent groove.Upper clamping anchor ear 3 and lower clamping anchor ear 7, pass through plug-in obvolvent structure and upper conductive rod 4
Connected with/lower conductive rod 6, fixed, conductive effect is played to leakage current table 5.Lower clamping anchor ear 7 is welded under arrester draws
On row.And using the fixed form of anchor ear, it not only can guarantee that connection is reliable, but also can guarantee that enough contacts area.
4 structure of upper conductive rod with reference to shown in figure 6, upper conductive rod 4 is identical with the structure of lower conductive rod 6, is cylinder,
And one end is equipped with circular hole 41, for being connected with the conductive column of Leakage Current table 5.
In addition, further including movable earthing member 10, the action of movable earthing member can connect or disjunction ground connection, to be convenient for changing
Leakage current table 5.There is one to be located at top simultaneously for 10 structure of movable earthing member with reference to shown in figure 8, the activity earthing member 10
With the top conductive contact surface 102 of upper clamping anchor ear conductive contact, one positioned at bottom and with arranging conductive contact under grounding lead
Bottom conductive contact face 103, and ought usually leakage current table in use, top conductive contact surface and bottom conductive contact face not
Conductive contact is arranged with corresponding upper clamping anchor ear and grounding lead.The collets 1 are connected with when removing leakage current table and work
Dynamic earthing member top conductive contact surface contact, to turn on the fixation conducting block 2 in leakage current circuit.
The middle part of the activity earthing member 10 is hingedly installed and top is connected with compression spring 9, and compression spring 9 connects to activity
Ground part 10 provides kinergety.During normal operation, compression spring 9 is in compressive state, movable earthing member 10 and upper clamping anchor ear 3
Disconnect；When replacing leakage current table 5, compression spring 9 extends, and movable earthing member 10 is connected with upper clamping anchor ear 3, leakage current
Flowed through through this.
As shown in figure 8, movable earthing member 10 is equipped with stepped hole 101, one end of compression spring 9 is installed on stepped hole 101
It is interior.Under compression spring effect, movable earthing member top conductive contact surface is contacted with fixed conducting block, bottom conductive contact face and
Contact is arranged under grounding lead.The middle part of movable earthing member 10 is equipped with the pin hole 104 of perforation, is used for realization being hinged for medium position.
As shown in figure 4, the fixed conducting block 2 is equipped with lower protrusion 21, lower protrusion 21 is equipped with conducting block conductive contact
Face, as shown in figure 8, the activity earthing member 10 is equipped with the portion that protrudes above, top conductive contact surface 102 is arranged on and protrudes above in portion, because
This forms the conductive contact surfaces of mutual cooperation between portion in lower protrusion 21 and protruding above, and is designed using tapered plane, moreover,
Also designed using tapered plane in bottom conductive contact face 103.And tapered plane uses design of the width for 30mm, ensure enough lead
Electric area.
In addition, further include promotion activity earthing member 10 and compress the insulation jacking block 8 of the compression spring 9, as shown in Figure 7
Insulate ejecting block, and the insulation jacking block 8 includes making with the lower service portion 81 of Leakage Current table effect and with movable earthing member
Upper service portion 82, and upper service portion 82 is vertical with lower service portion 81.When insulation jacking block 8 is pushed into, movable earthing member 10 is disconnected
The contact for drawing lower row with fixed conducting block 2 and arrester is opened, ground connection disconnects, and when the jacking block 8 that insulate is ejected by compression spring 9, connects
Ground turns on.When the jacking block 8 that insulate, which is compromised ammeter 5, to be pressed into, represent that leakage current table access circuit uses；When insulation jacking block 8
When departing from leakage current table 5, leakage current then flows to arrester by movable earthing member 10 and draws lower row.When usually leakage current
Table 5 is not in use, two conductive contact surfaces of movable earthing member 10 contact with correspondence position, when replacing leakage current table 5,
Compression 9 promotion activity earthing member 10 of spring makes two equal reliable contacts of conductive contact surfaces, and leakage current is grounded by activity at this time
Part 10 flows to be arranged under grounding lead.
Leakage current flows to during normal operation：Arrester draws lower row → fixation conducting surface → above clamping anchor ear → and goes up conductive rod
→ leakage current table → lower conductive rod → lower clamp is arranged under anchor ear → grounding lead.
Leakage current flows to when replacing leakage current table：Arrester draw lower row → fixation conducting surface → activity earthing mechanism →
Arranged under grounding lead.
The beneficial effects of the utility model are：
The external member can not only meet that leakage current table works normally, and operating procedure is simple in engineering is replaced, only
It is simple one to pull out one and insert, you can complete to replace, be swift in motion reliable, excellent security performance shown, to staff's
Safety plays reliable guarantee.
Easy-to-replaceable arrester Leakage Current table external member ensures that electrical connection is reliable by Machine Design, ensures that equipment safety can
By operation, while it is simple rapid more to change jobs, and greatly improves the quality and work efficiency of maintenance.
If realizing the external member commercialization, the work of the failure replacement of leakage current table will obtain technology, technique, the time with
And raising for security and guarantee.It can apply to the leakage current table replacement operation of all 220kV and following voltage class.
The above, is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, it is familiar with the those skilled in the art and should be understood that the utility model includes but not limited to attached drawing and above specific embodiment party
Content described in formula.The modification of any function and structure principle without departing from the utility model is intended to be included in claims
Scope in.
Claims (4)
1. a kind of arrester Leakage Current table easily changes structure, it is characterised in that is arranged including arranging, being installed under grounding lead under grounding lead
Collets between drawing lower row with arrester, the fixation conducting block being connected with collets, and one have top conductive contact surface
With the movable earthing member in bottom conductive contact face, the middle part of the activity earthing member is hingedly installed and top is connected with compression bullet
Spring, under compression spring effect, movable earthing member top conductive contact surface is contacted with fixed conducting block, bottom conductive contact face and
Contact is arranged under grounding lead.
2. a kind of arrester Leakage Current table according to claim 1 easily changes structure, it is characterised in that further includes promotion and lives
Dynamic earthing member and the insulation jacking block for compressing the compression spring, when insulation jacking block is pushed into, movable earthing member is disconnected leads with fixation
Electric block and the contact arranged under grounding lead, ground connection disconnect, when the jacking block that insulate is ejected, earth-continuity.
3. a kind of arrester Leakage Current table according to claim 2 easily changes structure, it is characterised in that the insulation jacking block
Upper service portion including the lower service portion acted on Leakage Current table and with the effect of movable earthing member, and upper service portion and lower work
It is vertical with portion.
4. a kind of arrester Leakage Current table according to claim 1 easily changes structure, it is characterised in that described fixed conductive
Block is equipped with lower protrusion, and the activity earthing member is equipped with the portion that protrudes above, and the lower protrusion and the portion of protruding above, which are equipped with, to cooperate
Conductive contact inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721504405.4U CN207318545U (en) | 2017-11-13 | 2017-11-13 | A kind of arrester Leakage Current table easily changes structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721504405.4U CN207318545U (en) | 2017-11-13 | 2017-11-13 | A kind of arrester Leakage Current table easily changes structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207318545U true CN207318545U (en) | 2018-05-04 |
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ID=62401218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721504405.4U Active CN207318545U (en) | 2017-11-13 | 2017-11-13 | A kind of arrester Leakage Current table easily changes structure |
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| Country | Link |
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| CN (1) | CN207318545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595991A (en) * | 2020-12-11 | 2021-04-02 | 国网江苏省电力有限公司徐州供电分公司 | Transformer substation high-voltage arrester leakage current abnormity alarm device |
-
2017
- 2017-11-13 CN CN201721504405.4U patent/CN207318545U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595991A (en) * | 2020-12-11 | 2021-04-02 | 国网江苏省电力有限公司徐州供电分公司 | Transformer substation high-voltage arrester leakage current abnormity alarm device |
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