CN204741243U - A kind of lightning protection overvoltage protection device - Google Patents
A kind of lightning protection overvoltage protection device Download PDFInfo
- Publication number
- CN204741243U CN204741243U CN201520397721.0U CN201520397721U CN204741243U CN 204741243 U CN204741243 U CN 204741243U CN 201520397721 U CN201520397721 U CN 201520397721U CN 204741243 U CN204741243 U CN 204741243U
- Authority
- CN
- China
- Prior art keywords
- fixed
- lightning protection
- limiting element
- current limiting
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a lightning protection overvoltage protection device, including lightning protection overvoltage protection ware and support device, the lightning protection overvoltage protection ware includes current limiting element, and the current limiting element upper end is equipped with the top connection, and the lower extreme is equipped with the lower clutch, still is equipped with the fixed part who is used for fixed wire in the top connection, the support device includes main support, assistant support and crossbeam, and the main support comprises horizontal segment and vertical section connection, and the horizontal segment is equipped with rectangular hole in the vertical section on being fixed in the crossbeam, and assistant support one end is fixed rectangular downthehole, the other end and lower clutch fixed connection. The utility model provides a present installation is adjusted consuming timely and influence the problem of cable electric property, and the mode of utilizing the components of a whole that can function independently of major -minor support to set up replaces the fixed bolster, conveniently adjusts when installing to having practiced thrift installation time, having reached the purpose of practicing thrift installation use cost, electric transmission performance that simultaneously still can undamaged assurance transmission & distribution line, and then enhancing power supply reliability reduce economic loss.
Description
Technical field
The utility model relates to power transmission technology field, is specially a kind of lightning protection over-pressure safety device.
Background technology
Cable is the important component part of electric power system, as the carrier of power delivery, in power transmission and distribution process, plays very important effect.Cable simply can be divided into type low-voltage cable, high voltage cable, superhigh pressure cable according to load condition, bare wire and insulated electric conductor can be divided into by its skin again with or without insulation protection.
In electric power system transmission line, for reaching the effect of maximise transmission efficiency, when carrying out remote distance power transmission, the electric power transfer mode of high pressure and even superhigh pressure can be adopted to carry out power transmission and distribution operation, in field, wilderness, due to geographical reason, adopting overhead transmission line more, injuring adopting brandreth aerial cable to carry out high-voltage transmission especially for avoiding people and animals.
On whole electric line, lightning-caused breaking is a general difficult problem, especially in remote power transmission line, power circuit breaks, insulator arc-over, large-area power-cuts and electricity sales amount loss can be caused, and then cause huge economic loss, even cause great personal injury accident.Therefore the generation that lightning protection device (as lightning protection overvoltage protector) reduces and avoid lightning disturbance can be installed in electric line.
And the holder device between existing lightning protection overvoltage protector and its insulator be connected in parallel is a kind of stationary device, for ensureing cable high consistency, to regulate through too much structure interlock when mounted and just can reach cable high consistency, serious affects project progress, thus improves and install and use cost; When cable height is inconsistent, will occur that cable drops down the situation of line, easily appearance is gluedd joint between the lines under the action of the forces of the wind, causes line short, serious security incident occurs; Existing lightning protection overvoltage protector is used in upper and lower gasket plate set-up mode and fixes, and makes the wire be fixed thereon cause cable to be out of shape owing to extruding reason, thus affects the electric property of wire, cause potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of convenient lightning protection over-pressure safety device installed and regulate, and effectively can ensure the electric transmission performance of transmission line, technical scheme is as follows:
A kind of lightning protection over-pressure safety device, comprises lightning protection overvoltage protector and holder device; Described lightning protection overvoltage protector comprises current limiting element, and described current limiting element upper end is provided with top connection, and lower end is provided with lower contact, described top connection is also provided with the fixed part for fixing cord; Described holder device comprises main support, assistant support and crossbeam, described main support is connected and composed by horizontal segment and vertical section, and horizontal segment is fixed on crossbeam, and vertical section is provided with strip hole, described assistant support one end is fixed in described strip hole, and the other end is fixedly connected with described lower contact.
Further; described lightning protection overvoltage protector also comprises wire drainage ball, current limiting element drainage ball and drainage bar; described wire drainage ball connects top connection; described current limiting element drainage ball connects described current limiting element by drainage bar, leaves discharging gap between wire drainage ball and current limiting element drainage ball.
Further, described fixed part comprises Upper gasket and lower gasket, and described Upper gasket and lower gasket are fixed in described top connection, and Upper gasket is arc.
The beneficial effects of the utility model are: the utility model solves existing installation and regulates consuming time and affect the problem of cable electric property, the mode utilizing the split of major-minor support to arrange replaces fixed support, conveniently regulate when mounted, thus saved the set-up time, reach the object of saving and installing and using cost, the electric transmission performance of guarantee transmission & distribution line that simultaneously also can be intact, and then improve power supply reliability, reduce economic loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model lightning protection over-pressure safety device.
In figure: 1-Upper gasket, 2-lower gasket, 3-nut, 4-screw rod, 5-top connection, 6-wire drainage ball, 7-current limiting element drainage ball, 8-drainage bar, 9-current limiting element, 10-assistant support, 11-lower contact, 12-main support, 13-bolt part, 14-strip hole, 15-bolt kit, 16-crossbeam, 18-wire.
Embodiment
Be described further below in conjunction with specific embodiment and the utility model:
Embodiment 1: as shown in Figure 1, a kind of lightning protection over-pressure safety device, comprises lightning protection overvoltage protector and holder device; Described lightning protection overvoltage protector comprises current limiting element 9, and described current limiting element 9 upper end is provided with top connection 5, and lower end is provided with lower contact 11, described top connection 5 is also provided with the fixed part for fixing cord 18.Described holder device comprises main support 12, assistant support 10 and crossbeam 16, described main support 12 is in L-type, connected and composed by horizontal segment and vertical section, horizontal segment is fixed on crossbeam 16 by bolt kit 15, vertical section is provided with strip hole 14, described assistant support 10 one end is fixed in strip hole 14 by bolt part 13, and the other end is fixedly connected with described lower contact 11.Wherein, top connection 5 and lower contact 11 adopt conductive metallic material.
In use, with fixed part, wire 18 is fixed in top connection 5, and crossbeam 16 is connected on power transmission tower frame.At thunderstorm weather, when wire 18 is subject to thunderbolt generation overvoltage, due to the protective effect of lightning protection overvoltage protector, thunder and lightning is discharged rapidly, thus avoid occurring insulator arc-over, or conductor cord disconnection, cause large area line fault.Because assistant support 10 is fixed on the strip hole 14 of main support 12, so when carrying out high consistency and regulating, only need adjust the position of assistant support 10 in strip hole 14 by adjusting bolt part 13, just can reach the object of adjustment cable high consistency, thus simplify job step, reduce and regulating time is installed, reach the object reducing and install and use cost.
Embodiment 2: at the enterprising one-step optimization in the basis of above-described embodiment; as shown in Figure 1; above-mentioned lightning protection overvoltage protector also comprises wire drainage ball 6, current limiting element drainage ball 7 and drainage bar 8; described wire drainage ball 6 connects top connection 5; described current limiting element drainage ball 7 connects described current limiting element 9 by drainage bar 8, leaves discharging gap between wire drainage ball 6 and current limiting element drainage ball 7.Wherein wire drainage ball 6, current limiting element drainage ball 7 and drainage bar 8 can be arranged on current limiting element 9 inside, and wire drainage ball 6 is positioned at the top of current limiting element 9.
When thunderstorm weather, overvoltage is produced when wire 18 is subject to thunderbolt, when induction overvoltage not yet reaches insulator arc-over, the discharging gap of wire drainage ball 6 and current limiting element drainage ball 7 starts electric discharge, afterwards lightning current to be led current limiting element 9 by drainage bar 8, lightning current discharges through current limiting element 9, and power frequency continued flow is then blocked by current limiting element 9, reaches the object of " taking shelter from the thunder ".When circuit occur in short-term power-frequency overvoltage (Millisecond) time; even if circuit is in weak insulation (power frequency withstand 38kV); lightning protection overvoltage protector still ensures electric discharge; play a protective role; thus prevent because of power frequency continued flow high temperature melting broken string road (thunderbolt wire 18 breaks and insulator arc-over); protection circuit, avoids breaking, insulator arc-over and cause large-area power-cuts, the loss of electricity sales amount and the great economic loss that causes great personal injury accident and cause thus.
Embodiment 3: at embodiment 1 or the basic enterprising one-step optimization of embodiment 2, as shown in Figure 1, fixation portions part comprises Upper gasket 1 and lower gasket 2, and described Upper gasket 1 and lower gasket 2 are fixed on described top connection 5 by nut 3 and screw rod 4, and Upper gasket 1 is arc.Upper gasket 1 and lower gasket 2 adopt conductive metallic material.
In use, wire 18 through Upper gasket 1 and lower gasket 2, and is fixed by it.Because Upper gasket 1 is arc shape, the fixture space formed between itself and lower gasket 2 can well there will not be and be out of shape and cause the risk that electric property reduces by guardwire 18, thus reaches good electrical communications characteristic.
Wherein, current limiting element 9 can adopt zinc oxide current limiting element; there is the zinc oxide current limiting element of nonlinear resistance property in discharge process, can on element retain one we usually said " residual voltage ", under the system power-frequency voltage after lightning voltage; oneself can extinguish power frequency continued flow; keeping system not decompression thus, avoids the generation of system decompression and relaying protection action trip condition, and then improves power supply quality guarantee normal power supply; increase economic benefit, improve power supply reliability.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520397721.0U CN204741243U (en) | 2015-06-10 | 2015-06-10 | A kind of lightning protection overvoltage protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520397721.0U CN204741243U (en) | 2015-06-10 | 2015-06-10 | A kind of lightning protection overvoltage protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204741243U true CN204741243U (en) | 2015-11-04 |
Family
ID=54422964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520397721.0U Expired - Fee Related CN204741243U (en) | 2015-06-10 | 2015-06-10 | A kind of lightning protection overvoltage protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204741243U (en) |
-
2015
- 2015-06-10 CN CN201520397721.0U patent/CN204741243U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102157253A (en) | Outer-gap lightning arrester | |
| CN201359893Y (en) | Lightning-proof suspension insulator | |
| CN201171150Y (en) | Overvoltage protector for open-resistant lever for avoiding wire from breaking due to lightning stroke | |
| CN203250598U (en) | Anti-thunder tension insulator | |
| CN201307473Y (en) | Lightning protector for 10 kV line | |
| CN205376222U (en) | Two -stage series gap thunderbolt flashover protector of 10kV tape insulation | |
| CN202084898U (en) | Adjustable spherical electrode circuit protector | |
| CN201348907Y (en) | Lightning protector of 10kV line | |
| CN203871821U (en) | Lightning protection device used for high-voltage power transmission line | |
| CN204464928U (en) | Be applied to overhead route system and there is the wiring system moving freely function | |
| CN206134637U (en) | Lightning -arrest type drop out fuse | |
| CN204760146U (en) | Anti -icing suspension type composite insulator of lightning protection for 10kV transmission line | |
| CN204741243U (en) | A kind of lightning protection overvoltage protection device | |
| CN204012185U (en) | The multi-functional lightning arrester of a kind of overhead transmission line adjustable clearance | |
| CN205385198U (en) | 10kV circuit connection in series -parallel integral type clearance thunderbolt protector | |
| CN202940460U (en) | Tower lightning arrester | |
| CN204012615U (en) | A kind of Broken of Overhead Insulation Lines By Lightning protector | |
| CN203481768U (en) | Spherical fixed outer-gap lightning arrester for 10kV system insulating overhead line tension rod | |
| CN205141649U (en) | Over -voltage protector | |
| CN104022444A (en) | Rod-shaped suspended voltage limiter for overhead line | |
| CN204905828U (en) | Overhead transmission line lightning protection device | |
| CN104577933A (en) | Wiring system with free movement function applied to elevated line system | |
| CN107947097A (en) | A kind of 10kV suspended insulated guide wires with the anti-lightning strike broken string of shielded layer | |
| CN201490714U (en) | Line lighting protection overvoltage protector | |
| CN202167303U (en) | Lightning-protection overvoltage protector |
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: 20151104 Termination date: 20180610 |