CN202650738U - Electric discharge clamping porcelain insulator - Google Patents
Electric discharge clamping porcelain insulator Download PDFInfo
- Publication number
- CN202650738U CN202650738U CN 201220333289 CN201220333289U CN202650738U CN 202650738 U CN202650738 U CN 202650738U CN 201220333289 CN201220333289 CN 201220333289 CN 201220333289 U CN201220333289 U CN 201220333289U CN 202650738 U CN202650738 U CN 202650738U
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- Prior art keywords
- field electrode
- run
- tab
- porcelain insulator
- mount pad
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- 239000012212 insulator Substances 0.000 title claims abstract description 76
- 229910052573 porcelain Inorganic materials 0.000 title claims abstract description 39
- 238000009413 insulation Methods 0.000 claims description 34
- 238000007599 discharging Methods 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 9
- 230000009172 bursting Effects 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- 238000002679 ablation Methods 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model provides an electric discharge clamping porcelain insulator. The electric discharge clamping porcelain insulator comprises an upper mounting seat, a lower mounting seat, an insulator body, a high-voltage electrode and a run-on plate, wherein the upper mounting seat is provided with a groove used for mounting an insulated high-voltage guide line; the lower mounting seat and the upper mounting seat are arranged correspondingly; the insulator body is arranged between the upper mounting seat and the lower mounting seat; a first end of the high-voltage electrode is fixedly connected with the upper mounting seat, a second end of the high-voltage electrode extends towards the direction far away from the insulated high-voltage guide line, and the end part of a second end of the high-voltage electrode exceeds the outside of the circumference of the insulator body; a first end of the run-on plate is fixedly connected to the lower mounting seat, a second end opposite to the first end and the second end of the high-voltage electrode extends in the same direction, and the end part of the second end of the run-on plate exceeds the outside of the circumference of the insulator body; and an electric discharge gap is formed between the high-voltage electrode and the run-on plate. Due to the adoption of the electric discharge clamping porcelain insulator provided by the utility model, the reliable protection can be provided for the insulated high-voltage guide line and the electric discharge clamping porcelain insulator, the damage caused by lightning stoke can be avoided, and meanwhile, the burning of the upper mounting seat can be avoided.
Description
Technical field
The utility model relates to the high pressure overhead power line technical field, in particular to a kind of Clamping porcelain insulator.
Background technology
In power distribution network, adopt the insulation high-voltage conducting wires to solve corridor and the safety problem that naked high-voltage conducting wires can't resolve, but the insulation high-voltage conducting wires also have the weakness of himself, i.e. lightning-caused breaking problem, so-called thunderbolt must be broken.Along with the increase of insulation high-voltage conducting wires coverage rate in the power distribution network, the problem of lightning-caused breaking is also day by day obvious.Therefore, prevent that overhead insulating high-voltage conducting wires lightning-caused breaking from becoming more and more important.
According to the mechanism of insulation high-voltage conducting wires lightning-caused breaking, the corresponding precautionary measures have " dredge and stop up " dual mode." dredging " is exactly with near the local bare wire of the insulation high-voltage conducting wires the Clamping porcelain insulator, make power frequency arc arc root shift or be fixed on the special gold utensil and burn, thereby guardwire avoids burn.Simple to operate, the small investment of the mode of " leading-type ", but wire is local exposed, has sealing and insulation defect." obstruction " is exactly to stop the power frequency continued flow starting the arc behind the lightning stroke flashover.Compare " leading-type ", the mode better protecting effect of " blocking type ", shortcoming are the construction relative complex, and cost is higher.
In high pressure overhead power line, the general anti-lightning strike technical scheme that adopts is by using the Clamping porcelain insulator, electric arc is fixed on the insulator burns on the mount pad and run-on tab, prevents that lightning-caused breaking and porcelain vase from bursting.But, although prior art can play the effect that prevents lightning-caused breaking generally speaking, there is following some problem:
1. the lightning discharge path is on the insulator between mount pad and the run-on tab, and behind the lightning discharge, power frequency arc can make mount pad scaling loss on the insulator;
2. because thunder discharge path distance insulator umbrella is nearer, can cause bursting or burning of insulator umbrella when power frequency arc burns behind the lightning discharge in some cases;
3. because thunder discharge path distance insulation high-voltage conducting wires is nearer, the high-voltage conducting wires that can cause behind the lightning discharge in some cases insulating burn breaks.
In sum, existing Clamping porcelain insulator can't solve the lightning-caused breaking problem reliably, and there is serious potential safety hazard in low, the poor reliability of stability.
The utility model content
The utility model aims to provide a kind of Clamping porcelain insulator, can provide reliable protection for insulation high-voltage conducting wires and Clamping porcelain insulator, and the scaling loss of mount pad is avoided in the damage of avoiding being struck by lightning and causing simultaneously.
To achieve these goals, according to an aspect of the present utility model, provide a kind of Clamping porcelain insulator, having comprised: gone up mount pad, have the groove of installing insulating high-voltage conducting wires; Lower mount pad is with upper mount pad relative set; Insulator body is arranged between mount pad and the lower mount pad; High-field electrode, first end is fixedly connected with upper mount pad, and the second end is to extending away from the direction of insulation high-voltage conducting wires, and the second end end of high-field electrode exceeds outside the circumference of insulator body; And run-on tab, first end is fixedly attached to lower mount pad, and second end relative with first end and the second end of high-field electrode extend in the same way, and the second end end of run-on tab exceeds outside the circumference of insulator body; Form discharging gap between high-field electrode and the run-on tab.
Further, the second end of high-field electrode and the horizontal range between the insulator body center are greater than the second end of run-on tab and the horizontal range between the insulator body center.
Further, high-field electrode is perpendicular to the insulation high-voltage conducting wires.
Further, the second end of high-field electrode has to the electrode kink of the second extreme direction bending of run-on tab.
Further, the second end of run-on tab has to the first kink of the second extreme direction bending of high-field electrode.
Further, the second end of run-on tab also has the second kink that is connected with the first kink, and the second kink extends to the direction away from the second end of insulator body and high-field electrode.
Further, the high-field electrode outer surface is coated with the electrode insulation cover, and the electrode insulation cover is stretched out in the second end end of high-field electrode.
Further, the second end end of high-field electrode is bulb, and the electrode insulation cover is stretched out in the bottom of bulb.
Further, form discharging gap between the minimum point of the bulb of high-field electrode and the peak of run-on tab, the length of discharging gap is 50～300mm.
Further, the horizontal range between the second end end of the minimum point of the bulb of high-field electrode and run-on tab is 15～100mm.
Further, the shortest horizontal range between the minimum point of the bulb of insulator body periphery and high-field electrode is 20～200mm.
Use the technical solution of the utility model; by arranging respectively at the insulator body two ends to high-field electrode and run-on tab away from insulation high-voltage conducting wires and the extension of insulator body direction; between high-field electrode and run-on tab, formed the discharge prevention gap away from insulation high-voltage conducting wires and insulator body; the insulation high-voltage conducting wires can be by the burn broken string when making the burning of lightning discharge and power frequency arc; the Clamping porcelain insulator can not burst or be burnt; simultaneously since the lightning discharge circuit without upper mount pad, so can not cause the scaling loss of mount pad.
Description of drawings
The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of establishing the insulation high-voltage conducting wires according to the Clamping porcelain insulating subcard of embodiment of the present utility model;
Fig. 2 shows according to the Clamping porcelain insulating subcard of embodiment of the present utility model and establishes the insulation high-voltage conducting wires and cover the schematic diagram of establishing insulating cover;
Fig. 3 shows the structural representation according to the high-field electrode of the Clamping porcelain insulator of embodiment of the present utility model;
Fig. 4 shows the front view according to the run-on tab of the Clamping porcelain insulator of embodiment of the present utility model;
Fig. 5 shows the left view according to the run-on tab of the Clamping porcelain insulator of Fig. 4;
Fig. 6 shows the schematic diagram according to the insulating cover of the Clamping porcelain insulator of embodiment of the present utility model;
Fig. 7 shows the U-shaped screw rod schematic three dimensional views according to the Clamping porcelain insulator of embodiment of the present utility model;
Fig. 8 shows the U-shaped screw rod front view according to the Clamping porcelain insulator of embodiment of the present utility model; And
Fig. 9 shows the U-shaped screw rod left view according to the Clamping porcelain insulator of Fig. 8.
Embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Shown in Fig. 1～2, according to embodiment of the present utility model, the Clamping porcelain insulator comprises mount pad 50, lower mount pad 30, insulator body 40, high-field electrode 80 and run-on tab 20.The upper surface of wherein going up mount pad 50 has arc groove, and wire clamp 70 correspondences are arranged on this arc groove top, is spirally connected with the upper surface of upper mount pad 50.Between the arc groove of wire clamp 70 and upper mount pad 50, be arranged with insulation high-voltage conducting wires 60.Upper mount pad 50 and the corresponding setting about in the of 30 of lower mount pad, the insulator body 40 that is formed by stacking up and down by a plurality of insulator umbrellas 41 is arranged between upper mount pad 50 and the lower mount pad 30, and upper mount pad 50 and lower mount pad 30 are linked together.The lower surface of lower mount pad 30 is fixedly connected with cross-arm 10, and its connected mode is for example for being spirally connected.
In conjunction with referring to Fig. 3, the first end of high-field electrode 80 and upper mount pad 50 are spirally connected by U bolt 84, and the second end is to extending away from the direction of insulation high-voltage conducting wires 60, and the second end end of high-field electrode 80 exceeds outside the circumference of insulator umbrella 41.Preferably, the length direction of high-field electrode 80 is vertical with the axial direction of insulation high-voltage conducting wires 60.The second end of high-field electrode 80 has to the electrode kink 85 of run-on tab 20 directions bending, the end of electrode kink 85 is the bulb 81 of spherical structure, and the shortest horizontal range between the minimum point of the bulb 81 of insulator body 40 peripheries and high-field electrode 80 is 20～200mm.This bulb 81 has good ablation resistance.Because in the transmission line that the Clamping porcelain insulator is applied to make somebody a mere figurehead, so exposed high-field electrode 80 can cause potential safety hazard, for fear of the generation of accident, the electrode insulation that is coated with one deck silicon rubber at high-field electrode 80 outer surfaces overlaps 82, can play the effect of insulation and waterproof.In order accurately to locate lightning stroke flashover path, electrode insulation cover 82 is stretched out in bulb 81 bottoms of high-field electrode 80.For high-field electrode 80 and upper mount pad 50 are better located, be provided with the second limiting section 83 at high-field electrode 80 first ends, this second limiting section 83 comprises two L shaped limiting plates, can guarantee that the installation site of high-field electrode 80 is accurate.
In conjunction with referring to Fig. 4～5, the first end of run-on tab 20 is arranged between cross-arm 10 and the lower mount pad 30, mounting means can be for being spirally connected, run-on tab 20 second ends relative with run-on tab 20 first ends and the second end of high-field electrode 80 extend in the same way, and the second end end of run-on tab 20 exceeds outside the circumference of insulator umbrella 41, when electric shock occurs when, formed electric arc is positioned at their the second end between high-field electrode and the run-on tab 20, therefore, exceed outside the circumference of insulator umbrella 41, therefore, can not puncture insulator umbrella 41, cause insulator umbrella 41 to damage, protect more safe and reliable.The second end of run-on tab 20 has the first kink 21, and this first kink 21 is to the electrode kink 85 directions bending of high-field electrode 80.The first kink 21 is connected with the second kink 23, and this second kink 23 extends to the direction away from insulator body 40.The junction of the first kink 21 and the second kink 23 forms the peak of run-on tab 20, is formed with discharging gap between the peak of the minimum point of the bulb 81 of high-field electrode 80 and run-on tab 20, and the length of discharging gap is 50～300mm.Because discharging gap is away from insulation high-voltage conducting wires 60 and insulator umbrella 41, shown in can effectively prevent lightning discharge the time lightning current and power current burn, damage what insulation high-voltage conducting wires 60 caused, and prevent that insulator umbrella 41 from bursting.In order to prevent the run-on tab 20 positions guiding discharge space change that changes, be provided with the first limiting section 22 at the first end of run-on tab 20, this first limiting section 22 cooperates with cross-arm 10, makes the location of run-on tab 20 more accurate.Impact for fear of the discharge effect to discharging gap, the horizontal range of the second end of high-field electrode 80 and insulator body 40 axis is greater than the horizontal range of run-on tab 20 second ends and insulator body 40 axis, and the horizontal range between the second end end of the minimum point of the bulb 81 of high-field electrode 80 and run-on tab 20 is 15～100mm.
Because the second kink 23 of run-on tab 20 is downward turnup structure, after power current that thunderbolt causes is to run-on tab 20 calcinations, burning point is formed on the surface of this second kink 23, and calcination is continued to the junction of the second kink and the first kink 21 in the surface along the second kink 23, form the arcing gap, because turnup structure can play the arc effect of wafing, so that run-on tab 20 has good arc extinction performance, so the arcing gap can not extend to the junction of the second kink and the first kink 21, can not impact original discharging gap.
In conjunction with referring to Fig. 6, be covered with insulating cover 90 at the first end of high-field electrode 80 and the outer surface of upper mount pad 50, wire clamp 70 and the SI semi-insulation high-voltage conducting wires 60 that is fastened in the mount pad 50 all are positioned at this insulating cover 90.Insulating cover 90 adopts silicon rubber to make, and has the good characteristics such as fire-retardant, anti-aging, dustproof and waterproof.
In conjunction with referring to Fig. 7～9, the first end of high-field electrode 80 and upper mount pad 50 are spirally connected by U bolt 84.U bolt 84 comprises plain cushion 843, bullet pad 844, nut 845 and U-shaped screw rod 846, and wherein 846 two ends of U-shaped screw rod have the external thread part 8461 that matches with the internal thread of nut 845.Install for convenient, the first end of high-field electrode 80 is provided with installing space.U-shaped screw rod 846 clamps upper mount pad 50, and the external thread part 8461 at two ends extend in the installing space, cooperates U bolt 84 fixing with high-field electrode 80 with external thread part 8461 by nut 845 again.First end and nut 845 wearing and tearing in order to prevent high-field electrode 80 are disposed with plain cushion 843 and bullet pad 844 between high-field electrode 80 and nut 845.U bolt herein also can replace with other locking mechanism, in order to high-field electrode and upper mount pad 50 are fixed together.
When electrical network normally moves, bulb 81 minimum points of high-field electrode 80 and the discharging gap between run-on tab 20 peaks can be isolated power-frequency voltage, under the lightning overvoltage effect of direct lightning strike or the generation of induction thunder, discharging gap is breakdown, lightning current is released into ground by the air gap, and the power current that continues is fixed on the arcing gap and burns.
From above description, can find out, the utility model the above embodiments have realized following technique effect: by making discharging gap away from Clamping porcelain insulator and insulation high-voltage conducting wires, make the burning of thunder discharge and power frequency arc can not cause the insulation high-voltage conducting wires broken string of being burnt, the Clamping porcelain insulator can not burst or be burnt; By the high-field electrode end being arranged to bulb and downward turnup structure being arranged in the run-on tab end, so that the anti-ablation ability of discharging gap strengthens, after can guaranteeing repeatedly the power frequency arc burning, the discharging gap distance remains unchanged, and can not affect the discharge prevention effect; The turnup structure of run-on tab end has the arc of wafing effect, can play good arc extinction performance; By high-field electrode the second end being exceeded run-on tab the second end setting, can avoid discharging gap is impacted, even in the situation of accumulated snow, icing, do not affect discharging gap performance effect yet.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (11)
1. a Clamping porcelain insulator is characterized in that, comprising:
Upper mount pad (50) has the groove of installing insulating high-voltage conducting wires (60);
Lower mount pad (30) is with described upper mount pad (50) relative set;
Insulator body (40) is arranged between described upper mount pad (50) and the described lower mount pad (30);
High-field electrode (80), first end is fixedly connected with described upper mount pad (50), the second end extends to the direction away from described insulation high-voltage conducting wires (60), and the second end end of described high-field electrode (80) exceeds outside the circumference of described insulator body (40); And
Run-on tab (20), first end is fixedly attached to described lower mount pad (30), the second end of second end relative with first end and described high-field electrode (80) extends in the same way, and the second end end of described run-on tab (20) exceeds outside the circumference of described insulator body (40);
Form discharging gap between described high-field electrode (80) and the described run-on tab (20).
2. Clamping porcelain insulator according to claim 1, it is characterized in that the horizontal range between the second end of described high-field electrode (80) and described insulator body (40) center is greater than the second end of described run-on tab (20) and the horizontal range between described insulator body (40) center.
3. Clamping porcelain insulator according to claim 1 is characterized in that, described high-field electrode (80) is perpendicular to described insulation high-voltage conducting wires (60).
4. Clamping porcelain insulator according to claim 1 is characterized in that, the second end of described high-field electrode (80) has to the electrode kink (85) of the second extreme direction bending of described run-on tab (20).
5. each described Clamping porcelain insulator in 4 according to claim 1 is characterized in that the second end of described run-on tab (20) has to first kink (21) of the second extreme direction bending of described high-field electrode (80).
6. Clamping porcelain insulator according to claim 5, it is characterized in that, the second end of described run-on tab (20) also has the second kink (23) that is connected with described the first kink (21), and described the second kink (23) extends to the direction away from the second end of described insulator body (40) and described high-field electrode (80).
7. Clamping porcelain insulator according to claim 5, it is characterized in that, described high-field electrode (80) outer surface is coated with electrode insulation cover (82), and described electrode insulation cover (82) is stretched out in the second end end of described high-field electrode (80).
8. Clamping porcelain insulator according to claim 7 is characterized in that, the second end end of described high-field electrode (80) is bulb (81), and described electrode insulation cover (82) is stretched out in the bottom of described bulb (81).
9. Clamping porcelain insulator according to claim 8, it is characterized in that, form discharging gap between the minimum point of the described bulb (81) of described high-field electrode (80) and the peak of described run-on tab (20), the length of described discharging gap is 50～300mm.
10. Clamping porcelain insulator according to claim 8 is characterized in that, the horizontal range between the minimum point of the described bulb (81) of described high-field electrode (80) and the second end end of described run-on tab (20) is 15～100mm.
11. Clamping porcelain insulator according to claim 8 is characterized in that, the shortest horizontal range between the minimum point of the described bulb (81) of described insulator body (40) periphery and described high-field electrode (80) is 20～200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333289 CN202650738U (en) | 2012-07-09 | 2012-07-09 | Electric discharge clamping porcelain insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333289 CN202650738U (en) | 2012-07-09 | 2012-07-09 | Electric discharge clamping porcelain insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650738U true CN202650738U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220333289 Expired - Lifetime CN202650738U (en) | 2012-07-09 | 2012-07-09 | Electric discharge clamping porcelain insulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN202650738U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269014A (en) * | 2013-05-09 | 2013-08-28 | 国家电网公司 | Electric power line arrester |
| CN103545061A (en) * | 2012-07-09 | 2014-01-29 | 国家电网公司 | Discharge clamping porcelain insulator |
| CN104361959A (en) * | 2014-12-02 | 2015-02-18 | 国家电网公司 | Disconnection-preventing parallel-connected gap device |
| CN106093723A (en) * | 2016-06-16 | 2016-11-09 | 平高集团有限公司 | DC Insulator insulation test device and method |
-
2012
- 2012-07-09 CN CN 201220333289 patent/CN202650738U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545061A (en) * | 2012-07-09 | 2014-01-29 | 国家电网公司 | Discharge clamping porcelain insulator |
| CN103269014A (en) * | 2013-05-09 | 2013-08-28 | 国家电网公司 | Electric power line arrester |
| CN104361959A (en) * | 2014-12-02 | 2015-02-18 | 国家电网公司 | Disconnection-preventing parallel-connected gap device |
| CN106093723A (en) * | 2016-06-16 | 2016-11-09 | 平高集团有限公司 | DC Insulator insulation test device and method |
| CN106093723B (en) * | 2016-06-16 | 2019-01-01 | 平高集团有限公司 | DC Insulator insulation test device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |