CN205016311U - Strain insulator -string clearance lightning protection device that connects in parallel - Google Patents
Strain insulator -string clearance lightning protection device that connects in parallel Download PDFInfo
- Publication number
- CN205016311U CN205016311U CN201520761678.1U CN201520761678U CN205016311U CN 205016311 U CN205016311 U CN 205016311U CN 201520761678 U CN201520761678 U CN 201520761678U CN 205016311 U CN205016311 U CN 205016311U
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- CN
- China
- Prior art keywords
- arc ring
- insulator
- lightning protection
- protection device
- trick arc
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Abstract
The utility model discloses a strain insulator -string clearance lightning protection device that connects in parallel belongs to overhead transmission line lightning protection technical field, beckon the arc ring and the right side including a left side and beckon the arc ring, the right side beckons the arc ring to be the ring -type, and right side trick arc ring sets up in insulator chain outside slope. It is parallelly connected with insulator chain through left and right arc ring, make the thunder and lightning discharge along the clearance, dredge power frequency arc, protective insulation avoids the burn, has reduced the circuit because accident rate that thunderbolt or pollution flashover caused, has improved the shape of insulator chain both ends electrodes moreover to a certain extent, makes insulator chain's voltage distribution have mild trend.
Description
Technical field
The utility model relates to Lightning Protection on Power Transmission Lines technical field, in particular to a kind of strain insulator-string parallel clearance lightning protection device.
Background technology
At present, the fault caused by thunder and lightning in electrical network comprises lightning stroke flashover and power frequency continued flow, is the principal element affecting electric power netting safe running, can damages insulator and gold utensil etc. thereof, especially the insulator well damage at insulator string both ends.
The existing lightning protection measures of overhead transmission line has erection lightning conducter, reduces pole tower ground resistance, reinforced insulation, installs coupling ground wire additional, installs Transmission Line Arrestor etc., and its core concept improves lightning withstand level and the minimizing tripping rate with lightning strike of circuit as much as possible.Since reform and opening-up, China's electrical network is fast-developing, and grid structure is more and more stronger; Transformer station also uses SF6 switch in a large number, relaying protection Microcomputer, and reclosing device obtains and generally applies.Pass through the typical meteorological characteristic sum Crack cause having investigated a large amount of line insulator lightning stroke flashovers, my company is necessary lead-in insulator connection in series-parallel clearance lightning-proof device, optimal design parallel connection gaps.
Utility model content
The purpose of this utility model is to provide a kind of strain insulator-string parallel clearance lightning protection device formed in insulator string two ends correspondence, and to reach good lightning protection effect, structure is simple, easy for installation.
For realizing the utility model object, the technical scheme of employing is: a kind of strain insulator-string parallel clearance lightning protection device, comprises left trick arc ring and right trick arc ring; In the form of a ring, and right trick arc ring is obliquely installed described right trick arc ring outside insulator string.
Further, rectangular-shaped in insulator lateral buckling of described left trick arc ring, the high-end and right trick arc ring of left trick arc ring high-end corresponding.
Further, the high-end overall dimension of described left trick arc ring is greater than the overall dimension of low side.
Further, described left trick arc ring is between two strings of strain insulators.
Further, the low side of described right trick arc ring is provided with gap.
Further, the low side of described right trick arc ring is provided with strutting piece, and strutting piece is connected with mounting panel.
The beneficial effects of the utility model are:
1, in parallel with insulator string by left and right trick arc ring, make thunder and lightning along gap discharge, dredge power frequency arc, protection insulator avoids burn, and this Lightning Protection is that the strong of conventional transmission lines road Lighting Protection Measures supplements.
2, power frequency arc is drawn and is blown out by this device in the duration of short circuit allowed, considerably reduce the rate of failure that circuit causes due to thunderbolt or pollution flashover, and improve the shape of insulator string two end electrodes to a certain extent, make the voltage's distribiuting of insulator string have mild trend.
3, in the wave head time range that lightning impulse may occur, the lightning impulse discharge path of parallel connection clearance device is the air gap between electrode, and this enables the power frequency continued flow produced subsequently away from insulator string.Lightning protection device structure of the present utility model is simple, easy for installation, is suitable for engineer applied, serves the effect of well protection insulator.
Accompanying drawing explanation
Fig. 1 is the strain insulator-string parallel clearance lightning protection device structural representation in use that the utility model provides;
Fig. 2 is the vertical view in use of lightning protection device shown in Fig. 1;
Fig. 3 is the front view of the left trick arc ring that the utility model provides;
Fig. 4 is the left view of left trick arc ring shown in Fig. 3;
Fig. 5 is the front view of the right trick arc ring that the utility model provides;
Fig. 6 is the left view of right trick arc ring shown in Fig. 5;
Fig. 7 is the vertical view of right trick arc ring shown in Fig. 5.
Embodiment
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Fig. 1 to Fig. 7 shows the strain insulator-string parallel clearance lightning protection device that the utility model provides, and comprises left trick arc ring 1 and right trick arc ring 2; In the form of a ring, and right trick arc ring 2 is obliquely installed right trick arc ring 2 outside insulator string 6, by the left and right trick arc ring of correspondence, is connected in parallel on outside insulator string 6, makes thunder and lightning along gap discharge therebetween, dredges power frequency arc, and protection insulator avoids burn.
The high-end overall dimension of left trick arc ring 1 is greater than the overall dimension of low side, and left trick arc ring 1 is between two strings of strain insulators, and its installation end can be loaded on the yoke plate 5 of insulator string 6 end.
Rectangular-shaped in insulator lateral buckling of left trick arc ring 1; inclination relative status is formed with right trick arc ring 2; the two all corresponding inclination can cover short circuit three insulators; the insulator at good protection both ends; high-end and the right trick arc ring 2 of left trick arc ring 1 high-end corresponding; form gap between the peak of the two, make thunder and lightning along its gap discharge, the center line of the high-end distance insulator string 6 of the two can be 800mm.
The low side of right trick arc ring 2 is provided with gap, the low side of right trick arc ring 2 is provided with strutting piece 3, strutting piece 3 can be located at opening position, strutting piece 3 is in vertical shape, obtuse angle is formed with right trick arc ring 2, make right trick arc ring 2 be inclined in the top of two insulator strings 6, strutting piece 3 is connected with mounting panel 4, is mounted on the yoke plate of insulator string 6 the other end by mounting panel 4.Right trick arc ring 2 can be runway ring-type, and right trick arc ring 2 may correspond to the overall radial full-size of all insulator strings of covering along the size of insulator radial direction.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, 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 amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. a strain insulator-string parallel clearance lightning protection device, comprises left trick arc ring and right trick arc ring; It is characterized in that, in the form of a ring, and right trick arc ring is obliquely installed described right trick arc ring outside insulator string.
2. strain insulator-string parallel clearance lightning protection device according to claim 1, is characterized in that, rectangular-shaped in insulator lateral buckling of described left trick arc ring, the high-end and right trick arc ring of left trick arc ring high-end corresponding.
3. strain insulator-string parallel clearance lightning protection device according to claim 1, is characterized in that, the high-end overall dimension of described left trick arc ring is greater than the overall dimension of low side.
4. strain insulator-string parallel clearance lightning protection device according to claim 1, is characterized in that, described left trick arc ring is between two strings of strain insulators.
5. strain insulator-string parallel clearance lightning protection device according to claim 1, is characterized in that, the low side of described right trick arc ring is provided with gap.
6. strain insulator-string parallel clearance lightning protection device according to claim 1 or 5, it is characterized in that, the low side of described right trick arc ring is provided with strutting piece, and strutting piece is connected with mounting panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761678.1U CN205016311U (en) | 2015-09-29 | 2015-09-29 | Strain insulator -string clearance lightning protection device that connects in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761678.1U CN205016311U (en) | 2015-09-29 | 2015-09-29 | Strain insulator -string clearance lightning protection device that connects in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205016311U true CN205016311U (en) | 2016-02-03 |
Family
ID=55214903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520761678.1U Expired - Fee Related CN205016311U (en) | 2015-09-29 | 2015-09-29 | Strain insulator -string clearance lightning protection device that connects in parallel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205016311U (en) |
-
2015
- 2015-09-29 CN CN201520761678.1U patent/CN205016311U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20180929 |