CN219892924U - Arrester clearance bearing structure with arc extinguishing function and can install with electricity - Google Patents
Arrester clearance bearing structure with arc extinguishing function and can install with electricity Download PDFInfo
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- CN219892924U CN219892924U CN202320534622.7U CN202320534622U CN219892924U CN 219892924 U CN219892924 U CN 219892924U CN 202320534622 U CN202320534622 U CN 202320534622U CN 219892924 U CN219892924 U CN 219892924U
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- arrester
- insulator
- arc extinguishing
- supporting plate
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- 230000005611 electricity Effects 0.000 title description 4
- 239000012212 insulator Substances 0.000 claims abstract description 61
- 238000002955 isolation Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 abstract description 7
- 230000008033 biological extinction Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model discloses a gap supporting structure of an arrester with an arc extinguishing function and capable of being installed in an electrified mode, which comprises an upper supporting plate, an isolating knife switch, an arc extinguishing supporting insulator, a lower supporting plate and a lower fixing plate, wherein an arrester is vertically arranged at one end of the upper supporting plate, a fixed insulator is vertically arranged at the other end of the upper supporting plate, the upper end of the arrester is connected with one end of the upper supporting plate, the other end of the upper supporting plate is connected with the upper end of the fixed insulator, the lower end of the fixed insulator is connected with one end of the lower fixing plate, the lower end of the arrester is provided with an arrester lower electrode, the upper end of the isolating knife switch is buckled on the arrester lower electrode, and the lower end of the isolating knife switch is connected with the vertically arranged arc extinguishing supporting insulator. The supporting insulator structure can be installed and replaced in an electrified mode, the reburning arc can be eliminated, and thermal breakdown hard short circuit of the lightning arrester caused by reburning is effectively avoided.
Description
Technical Field
The utility model belongs to the technical field of line lightning protection and arc extinction, and particularly relates to a gap supporting structure of an arrester with an arc extinction function and capable of being installed in an electrified mode.
Background
In order to prevent the tripping problem caused by lightning breakage and power frequency follow current of an increasingly serious overhead power distribution insulated wire, most of the current measures are to install a fixed gap lightning arrester beside a tower insulator, the high-voltage end of the lightning arrester is integrally connected with the fixed gap insulator, the main purpose is to isolate power frequency voltage through an air gap, and the air gap insulator is not required to be manually regulated again during installation, but the defects are also existed, firstly, the replacement difficulty of the lightning arrester or the insulator is large and complicated, secondly, the lightning arrester cannot play a protective role on a power transmission line after being damaged, and the structure of the fixed gap insulator can have the following problems: the supporting insulator has no arc extinguishing function, the voltage drop born by the arrester before the gap breakdown is zero, the ground voltage is fully added to the gap to be easy to reburnt, the arrester loses the arc extinguishing function on the reburning arc because the arrester is in the low-resistance state of the piezoresistor, the reburning arc cannot be extinguished because the supporting insulator has no arc extinguishing function, the reburning arc is equivalent to the multipulse energy injected into the arrester again after the lightning stroke, and the arrester is caused to generate thermal breakdown hard short circuit because of insufficient heat dissipation time.
Disclosure of Invention
The utility model aims to provide a gap supporting structure of a lightning arrester, which has an arc extinguishing function and can be installed in an electrified manner, and the supporting insulator structure can be installed and replaced in an electrified manner, so that a re-ignition arc can be eliminated, and thermal breakdown hard short circuit of the lightning arrester caused by re-ignition can be effectively avoided. In order to achieve the above purpose, the present utility model adopts the following technical scheme:
according to one aspect of the utility model, there is provided a gap supporting structure of an arrester having an arc extinguishing function and capable of being installed in a live state, the gap supporting structure of the arrester comprises an upper supporting plate, an isolating knife switch, an arc extinguishing supporting insulator, a lower supporting plate and a lower fixing plate, wherein the arrester is vertically arranged at one end of the upper supporting plate, the fixing insulator is vertically arranged at the other end of the upper supporting plate, the upper end of the arrester is connected with one end of the upper supporting plate, the other end of the upper supporting plate is connected with the upper end of the fixing insulator, the lower end of the fixing insulator is connected with one end of the lower fixing plate, the lower end of the arrester is provided with an arrester lower electrode, the upper end of the isolating knife switch is buckled on the arrester lower electrode, the lower end of the isolating knife switch is connected with the vertically arranged arc extinguishing supporting insulator, the lower end of the arc extinguishing supporting insulator is buckled on one end of the lower supporting plate, and the other end of the lower supporting plate is detachably connected with the other end of the lower fixing plate.
Above-mentioned scheme is further preferred, keep apart the switch and include perpendicular backup pad, horizontal bottom plate and opening ring buckle, set up in perpendicular backup pad's lower extreme below horizontal bottom plate sets up in perpendicular backup pad's upper end level opening ring buckle, perpendicular backup pad's upper end passes through opening ring buckle lock joint on the arrester lower electrode, horizontal bottom plate's stiff end passes through bolt horizontal connection and is in arc extinguishing support insulator's top, horizontal bottom plate's link with perpendicular backup pad's lower extreme.
The scheme is further preferable that the lower end part of the vertical supporting plate is provided with a vertical connecting plate, the connecting end of the horizontal bottom plate is vertically provided with a vertical bottom plate, the upper end of the vertical connecting plate is vertically connected to the lower end part of the vertical supporting plate through a movable bolt, and the lower end of the vertical connecting plate is vertically connected to the horizontal bottom plate through the vertical bottom plate.
In the above scheme, it is further preferable that a circular ring is welded and fixed on the side part of the vertical support plate.
The scheme is further preferable, the lower support plate and the lower fixing plate are detachably connected through the connecting bolts, a transverse support bayonet is arranged at the end part of the lower support plate far away from one side of the lower fixing plate, the arc extinguishing support insulator is clamped on the transverse support bayonet through a lower end screw rod, and a fastening nut is arranged on the lower end screw rod and located above the lower support plate.
The scheme is further preferable, one end of the upper supporting plate is mutually connected through an upper end screw rod at the top end of the lightning arrester, and the other end of the upper supporting plate is connected with the fixed insulator through a fixed fitting and a fixed nut.
In the above scheme, it is further preferable that the upper support plate has a twisted structure, and the twisted angles between the two ends of the upper support plate are different by 90 °.
In summary, the utility model adopts the technical scheme, and has the following technical effects:
when the supporting insulator structure is in arc extinction, the re-ignition arc can be eliminated, and thermal breakdown hard short circuit of the lightning arrester caused by re-ignition is avoided; the lightning arrester can still play a role in lightning protection and arc extinction after being damaged by lightning strike, and the arc extinction supporting insulator can be installed and replaced in an electrified mode.
Drawings
Fig. 1 is a front view showing the overall structure of a support insulator structure having an arc extinguishing function and being installed with electricity according to the present utility model;
FIG. 2 is a side view of the overall structure of the present utility model
FIG. 3 is a schematic view of an isolation knife switch of the present utility model;
in the drawing, an upper support plate 1, a lightning arrester 2, an isolating disconnecting link 3, an arc extinguishing support insulator 4, a fastening nut 5, a lower support plate 6, a lower end screw rod 7, a connecting bolt 8, a lower fixing plate 9, a fixing insulator 10, a fixing fitting 11, a transverse support bayonet 12, an upper end screw rod 21, a vertical support plate 31, a circular ring 32, a vertical bottom plate 33, a horizontal bottom plate 34, a vertical connecting plate 35, a movable bolt 35a, an opening circular ring buckle 36 and a lightning arrester lower electrode 37.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail below by referring to the accompanying drawings and by illustrating preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the utility model, and that these aspects of the utility model may be practiced without these specific details.
As shown in fig. 1 and 2, according to the present utility model, a gap supporting structure for an arrester having an arc extinguishing function and being installed with electricity, the gap supporting structure for an arrester includes an upper supporting plate 1, an isolating knife 3, an arc extinguishing supporting insulator 4, a lower supporting plate 6 and a lower fixing plate 9, an arrester 2 is vertically provided at one end of the upper supporting plate 1, a fixing insulator 10 is vertically provided at the other end of the upper supporting plate 1, wherein an upper end of the arrester 2 is connected with one end of the upper supporting plate 1, the other end of the upper supporting plate 1 is connected with an upper end of the fixing insulator 10, a lower end of the fixing insulator 10 is connected with one end of the lower fixing plate 9, the lower end of the lightning arrester 2 is provided with a lightning arrester lower electrode 37, the upper end of the isolating disconnecting link 3 is buckled on the lightning arrester lower electrode 37, the lower end of the isolating disconnecting link 3 is connected with an arc-extinguishing supporting insulator 4 which is vertically arranged, the lightning arrester 2, the isolating disconnecting link 3 and the arc-extinguishing supporting insulator 4 are connected in series to form a serial channel, the lower end of the arc-extinguishing supporting insulator 4 is buckled on one end of a lower supporting plate 6, a liquid-electric effect arc-extinguishing chamber is arranged in the arc-extinguishing supporting insulator 4, and when lightning strike electric arcs flow into the arc-extinguishing chamber from above the arc-extinguishing supporting insulator, lightning strike current is inhibited and the electric arcs are extinguished, so the arc-extinguishing supporting insulator has supporting and insulating functions and also has an arc-extinguishing function; the other end of the lower supporting plate 6 is detachably connected with the other end of the lower fixing plate 9.
In the utility model, the lower support plate 6 is detachably connected with the lower fixing plate 9 through a connecting bolt 8, a transverse support bayonet 12 is arranged at the end part of the lower support plate 6 far away from one side of the lower fixing plate 9, the arc extinguishing support insulator 4 is clamped on the transverse support bayonet 12 through a lower end screw rod 7, and a fastening nut 5 is arranged on the lower end screw rod 7 and above the lower support plate 6, so that the arc extinguishing support insulator 4 is fixed on the lower support plate 6 through the lower end screw rod 7 and the fastening nut 5; one end of the upper support plate 1 is mutually connected through an upper end screw 21 at the top end of the lightning arrester 2, the other end of the upper support plate 1 is connected with the fixed insulator 10 through a fixed fitting 11 and a fixed nut 110, the upper support plate 1 is of a twisted structure, and the twisting angles between the two ends of the upper support plate 1 are different by 90 degrees.
In the utility model, as shown in fig. 3, the isolating switch 3 comprises a vertical supporting plate 31, a horizontal bottom plate 34 and an open circular ring buckle 36, the horizontal bottom plate 34 is arranged below the lower end of the vertical supporting plate 31, the open circular ring buckle 36 is horizontally arranged at the upper end of the vertical supporting plate 31, the upper end of the vertical supporting plate 31 is buckled on a lower electrode 37 of the lightning arrester through the open circular ring buckle 36, the top of the vertical supporting plate 31 is fixedly connected with the open circular ring buckle 36 through a nut, the open circular ring buckle 36 is made of elastic metal material and is in an open structure, the open circular ring buckle 36 is conveniently buckled in the lower electrode 37 of the lightning arrester, the fixed end of the horizontal bottom plate 34 is horizontally connected with the top end of the arc extinguishing supporting insulator 4 through a bolt, the connecting end of the horizontal bottom plate 34 is horizontally connected with the lower end of the vertical supporting plate 31, the lower end of the vertical supporting plate 31 is vertically provided with a vertical connecting plate 35, the connecting end of the vertical bottom plate 33 is vertically arranged at the connecting end of the horizontal bottom plate 34, the upper end of the vertical connecting plate 35 is vertically connected on the lower end of the vertical supporting plate 31 through a movable bolt 35a vertical connecting plate, the side part of the vertical supporting plate 31 is conveniently clamped by the open circular ring buckle 36, the vertical bottom plate 32 is conveniently separated from the lower electrode 37 by the vertical bottom plate 32 through the vertical insulating rod 32, and is conveniently connected with the lower electrode 33 through the vertical connecting rod by the vertical connecting rod 32; the isolating knife switch 3 is arranged between the lightning arrester 2 and the arc-extinguishing supporting insulator 4, the horizontal bottom plate 34 of the isolating knife switch 3 is fixed at the top of the arc-extinguishing supporting insulator 4 through a plurality of nuts, the upper end of the vertical connecting plate 35 is connected with the vertical supporting plate 31 through a movable bolt 35a and a nut, but the connecting part is not fastened, but a movable space is reserved, so that the vertical supporting plate 31 can conveniently rotate up and down.
In the present utility model, the working principle of the gap supporting structure of the lightning arrester is further described with reference to fig. 1, 2 and 3: the arc-extinguishing support insulator shown by the serial gap support of the lightning arrester 2 plays a role of solidifying the gap position, generally adopts two ends of an insulator fixing gap, adds the arc-extinguishing support insulator 4 at the fixing gap, eliminates re-burning arc by using the arc-extinguishing function of the arc-extinguishing support insulator 4, avoids thermal breakdown hard short circuit of the lightning arrester caused by re-burning, and even if the thermal breakdown hard short circuit of the lightning arrester 2 occurs, the whole serial channel can also keep the arc-extinguishing lightning protection function because of the existence of the arc-extinguishing support insulator 4. The live working can be realized through the structures of the arc extinguishing supporting insulator 4 and the isolating disconnecting link 3: when the electrified disassembly is carried out: the staff grabs the ring 32 of the isolation disconnecting link with the insulating grabbing rod, then pulls out to drive the opening ring buckle 36 to separate from the lightning arrester lower electrode 37, and then pulls out the lower end screw rod 7 at the lower end of the arc extinguishing support insulator 4 along the transverse support bayonet 12 on the lower support plate 6, so as to complete the disassembly. When in electrified installation, the following components: the lower screw rod 7 of the arc extinguishing support insulator 4 is clamped in the transverse support bayonet 12 along the end part of the lower support plate 6, the ring 32 is grabbed by the insulation grabbing rod, the opening ring buckle 36 is driven to rotate upwards until the opening ring buckle 36 is clamped into the lightning arrester lower electrode 37, and the installation is completed.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (7)
1. Arrester clearance bearing structure with arc extinguishing function and installation that can take charge, its characterized in that: the arrester clearance bearing structure includes backup pad (1), isolation switch (3), arc extinguishing support insulator (4), lower backup pad (6) and lower fixed plate (9), is provided with arrester (2) in the one end of last backup pad (1) is vertical, is provided with fixed insulator (10) in the other end of last backup pad (1) is vertical, wherein, the upper end of arrester (2) is connected with the one end of last backup pad (1), the other end of last backup pad (1) is connected with the upper end of fixed insulator (10), the lower extreme of fixed insulator (10) with the one end of lower fixed plate (9) is connected, the lower extreme of arrester (2) is provided with arrester lower electrode (37), the upper end lock joint of isolation switch (3) is in on arrester lower electrode (37), the lower extreme of isolation switch (3) is connected with the arc extinguishing support insulator (4) of vertical setting, the one end lock joint of lower backup pad (6) is connected, the other end lock joint of lower backup pad (6) can dismantle with the one end of lower fixed plate (9).
2. The lightning arrester gap support structure with arc extinguishing function and live installable according to claim 1, wherein: the isolating disconnecting link (3) comprises a vertical supporting plate (31), a horizontal bottom plate (34) and an opening circular ring buckle (36), wherein the horizontal bottom plate (34) is arranged below the lower end of the vertical supporting plate (31), the opening circular ring buckle (36) is horizontally arranged at the upper end of the vertical supporting plate (31), the upper end of the vertical supporting plate (31) is buckled on a lightning arrester lower electrode (37) through the opening circular ring buckle (36), the fixed end of the horizontal bottom plate (34) is horizontally connected with the top end of the arc extinguishing supporting insulator (4) through a bolt, and the connecting end of the horizontal bottom plate (34) is connected with the lower end of the vertical supporting plate (31).
3. A gap support structure for an electrically mountable arrester having an arc extinguishing function according to claim 2, wherein: the vertical connecting plate (35) is arranged at the lower end part of the vertical supporting plate (31), the vertical bottom plate (33) is vertically arranged at the connecting end of the horizontal bottom plate (34), the upper end of the vertical connecting plate (35) is vertically connected to the lower end part of the vertical supporting plate (31) through a movable bolt (35 a), and the lower end of the vertical connecting plate (35) is vertically connected to the horizontal bottom plate (34) through the vertical bottom plate (33).
4. A lightning arrester gap support structure with arc extinguishing function and live mountable according to claim 2 or 3, characterized in that: a circular ring (32) is welded and fixed on the side part of the vertical supporting plate (31).
5. The lightning arrester gap support structure with arc extinguishing function and live installable according to claim 1, wherein: the arc extinguishing support insulator is characterized in that the lower support plate (6) is detachably connected with the lower fixing plate (9) through a connecting bolt (8), a transverse support bayonet (12) is arranged at the end part of the lower support plate (6) far away from one side of the lower fixing plate (9), the arc extinguishing support insulator (4) is clamped on the transverse support bayonet (12) through a lower end screw rod (7), and a fastening nut (5) is arranged on the lower end screw rod (7) and located above the lower support plate (6).
6. The lightning arrester gap support structure with arc extinguishing function and live installable according to claim 1, wherein: one end of the upper supporting plate (1) is mutually connected through an upper end screw rod (21) at the top end of the lightning arrester (2), and the other end of the upper supporting plate (1) is connected with the fixed insulator (10) through a fixed fitting (11) and a fixed nut (110).
7. The lightning arrester gap support structure with arc extinguishing function and live installable according to claim 6, wherein: the upper supporting plate (1) is of a twisted structure, and the twisting angles between the two ends of the upper supporting plate (1) are different by 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320534622.7U CN219892924U (en) | 2023-03-17 | 2023-03-17 | Arrester clearance bearing structure with arc extinguishing function and can install with electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320534622.7U CN219892924U (en) | 2023-03-17 | 2023-03-17 | Arrester clearance bearing structure with arc extinguishing function and can install with electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219892924U true CN219892924U (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320534622.7U Active CN219892924U (en) | 2023-03-17 | 2023-03-17 | Arrester clearance bearing structure with arc extinguishing function and can install with electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219892924U (en) |
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2023
- 2023-03-17 CN CN202320534622.7U patent/CN219892924U/en active Active
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