CN201541112U - Lightning collection device for overhead distribution wire - Google Patents
Lightning collection device for overhead distribution wire Download PDFInfo
- Publication number
- CN201541112U CN201541112U CN2009200596654U CN200920059665U CN201541112U CN 201541112 U CN201541112 U CN 201541112U CN 2009200596654 U CN2009200596654 U CN 2009200596654U CN 200920059665 U CN200920059665 U CN 200920059665U CN 201541112 U CN201541112 U CN 201541112U
- Authority
- CN
- China
- Prior art keywords
- lightning
- insulation
- overhead distribution
- efficient
- thunder carrying
- 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
Images
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model discloses a lightning collection device for overhead distribution wires. The lightning collection device is used for lightning protection for power distribution overhead wires. The lightning collection device is installed and fixed on a transmission tower through a fixing bracket and comprises an efficient lightning collector positioned at the top of the lightning collection device and a metal lifting rod which is arranged below the efficient lightning collector for lifting the efficient lightning collector and is grounded. A first insulating part is arranged between the fixing bracket and the metal lifting rod and is fixed at the upper part of the fixing bracket; and a wire erection lever is fixedly arranged on the fixing bracket and is provided with an insulated support thereon, and the insulated support is erected thereon with an electrically conducting wire and forms a second insulating part. The lightning collection device provided by the utility model utilizes the efficient lightning collector capable of forming ascending thunder and lightning current thereon, and arranges two insulating parts between the efficient lightning collector and the protected wire wired on the same transmission tower, so as to effectively discharge thunder and lightning current and dissipate thunder and lightning current energy, and reduce the damage of lightning stroke.
Description
Technical field
The utility model relates to the shocking preventing technology field, relates in particular to the overhead distribution thunder carrying-off device that is used for the power distribution overhead transmission line.
Background technology
In the transmission line system, shocking preventing technology and corresponding lightning protection device are generally adopted, and good lightning protection device is for transmission line and most important with the power transmission line column protection.
At present, the distribution overhead transmission line of 10kV is prone to accidents when suffering that thunder and lightning is invaded, comprising the serious accident of tripping operation, broken string, equipment puncture and so on.Yet transmission system must guarantee good security performance, no matter is lead or pylon, is subjected to thunder just accident may occur.In the prior art; in most cases be by independent tree tower or lightning arrester be installed independently realized by the protection of protector; yet in transmission system; all can not set tower separately carries out lightning protection to transmission line or power transmission line column down in a lot of requests; can only with tower lightning protection device be installed with circuit; and installing in the lightning protection device with tower with circuit; how to use protective device rightly; the path is the key of technical problem in this field with reasonably arranging going into of lightning current, also is that industry is wanted problem demanding prompt solution.
The utility model content
In view of this; technical problem to be solved in the utility model is; a kind of overhead distribution thunder carrying-off device is provided; utilize lightning lead-in efficient, that can form up lightning current; and between this efficient lightning lead-in and protected circuit, be provided with two insulation positions with the tower cabling; release effectively lightning current and consume the lightning current energy, the destruction of reducing thunderbolt.
Technical problem to be solved in the utility model also is, a kind of overhead distribution thunder carrying-off device is provided, the employing insulation system is installed, use independent, keep the independent grounding downlead and the independent earth mat of certain insulation level, the destruction of having reduced thunderbolt significantly with tower.
In order to solve the problems of the technologies described above, embodiment of the present utility model provides a kind of overhead distribution thunder carrying-off device, be used for the lightning protection of power distribution overhead transmission line, it is mounted on power transmission line column by fixed mount, this overhead distribution thunder carrying-off device comprises the efficient lightning lead-in that is positioned at this overhead distribution thunder carrying-off device top, described efficient lightning lead-in below is equipped with the metal rising bar of this efficient lightning lead-in that is used to raise, and this metal raises rod grounded;
Be provided with the first insulation position between described fixed mount and the metal rising bar, described fixed mount top is fixed at this first insulation position;
Be installed with the wire erection bar on the described fixed mount, this wire erection bar is provided with insulation support body, and this insulation support body is put on the shelf and is provided with the conducting wire, and forms the second insulation position.
As the improvement of above technical scheme, the Surge Protector lightning-protection module that provides among the embodiment of being of the present utility model also comprises some or all of in the following additional technical feature:
Wherein, described efficient lightning lead-in adopts and can produce up lightning current, and can reduce and control the field change discharger of the amplitude of lightning current.
Preferably; in order to make this efficient lightning lead-in and with forming effective clearance for insulation between the protected circuit of tower cabling; porcelain strut insulator is adopted at the described first insulation position, and this porcelain strut insulator makes this overhead distribution thunder carrying-off device and protected conducting wire form insulating regions.
Further, described metal rising bar is by connecting the independent grounding downlead ground connection of insulating with power transmission line column, and its earth terminal is provided with the independent grounding net.Behind the independent grounding net of independent grounding downlead with the lightning current conduction, release effectively lightning current and consume the lightning current energy of its divergent structure is crossed by independent grounding Netcom.
Preferably, in order to improve lightning protection effect, described independent grounding downlead outer periphery is equipped with the PVC insulation, makes itself and the body of the tower formation insulating regions of power transmission line column.Correspondingly, described independent grounding downlead also can adopt the single-phase insulated cable that can form effective insulation with body of the tower.
Compared with prior art, overhead distribution thunder carrying-off device of the present utility model possesses following beneficial effect at least:
Form efficient lightning lead-in by employing is set at overhead distribution thunder carrying-off device of the present utility model top by field change discharger, when overhead distribution thunder carrying-off device operate as normal, can form up lightning current, thereby greatly reduce the amplitude of lightning current.At lightning current by metal rising bar and when independent grounding downlead and independent grounding net are dispersed, the voltage that forms on earth resistance also can lower greatly, this voltage is tolerated by the air of porcelain strut insulator, forms the insulation first time of overhead distribution thunder carrying-off device; When this overtension, can be breakdown by the first insulation position that porcelain strut insulator is formed, the arcing phenomenon will appear in this moment, thereby consumes the energy of lightning current.In addition, between power transmission line column body of the tower and protected lead, also have the air insulation that an original insulator of circuit forms, become the insulation second time of overhead distribution thunder carrying-off device.In overhead distribution thunder carrying-off device of the present utility model, thunder and lightning under puncture insulation for the first time when letting out before, the lightning current energy is shunted, consumed energy once more when taking place to puncture arcing, if puncture insulation for the second time again, then lightning current has not had the energy of damaging.And because these two insulation all are air insulation, lightning current can recover later voluntarily, and whole device can not destroy because of crossing strong thunderbolt, can use repeatedly.
Description of drawings
Fig. 1 is the structural representation of the overhead distribution thunder carrying-off device of the utility model embodiment.
Embodiment
Below with reference to accompanying drawing preferred embodiment of the present utility model is described.In the accompanying drawing of institute's reference, same or analogous parts use identical drawing reference numeral to represent among the different figure.
As shown in Figure 1, the utility model preferred embodiment provides a kind of overhead distribution thunder carrying-off device, it is mounted on the power transmission line column 10 by fixed mount 4, this overhead distribution thunder carrying-off device comprises the efficient lightning lead-in 1 that is positioned at this overhead distribution thunder carrying-off device top, efficient lightning lead-in 1 below is equipped with the metal rising bar 2 of this efficient lightning lead-in that is used to raise, metal rising bar 2 ground connection.
When specific implementation, efficient lightning lead-in 1 adopts a change discharger, and a change discharger is extensively applied to the shocking preventing technology field, and in the utility model embodiment, a change discharger can produce up lightning current, thereby reduces and control the amplitude of lightning current.The earthing mode of metal rising bar 2 is to realize effectively that as far as possible the lightning current energy spread is a target, and the voltage that forms on the resistance on the earth connection is reduced, owing to adopt a change discharger among the utility model embodiment as efficient lightning lead-in 1, by metal rising bar and when independent grounding downlead and independent grounding net are dispersed, the voltage that forms on earth resistance also can lower greatly at lightning current.
Correspondingly, metal rising bar 2 is by connecting independent grounding downlead 6 ground connection of insulating with power transmission line column 10.In order to improve lightning protection effect, in the utility model embodiment, independent grounding downlead 6 outer periphery are equipped with PVC insulated tube 7, make the body of the tower of itself and power transmission line column form effective insulating regions.Certainly in other embodiment of the present utility model, independent grounding downlead 6 also can adopt the single-phase insulated cable that can form effective insulation with power transmission line column 10 bodies of the tower, perhaps the good independent grounding downlead of other insulation efficient.The earth terminal of independent grounding downlead 6 is connected with independent grounding net 8, in the present embodiment, independent grounding net 8 is set to divergent structure, behind the independent grounding net of independent grounding downlead 6 with the lightning current conduction, release effectively lightning current and consume the lightning current energy of its divergent structure is crossed by independent grounding Netcom.
Be provided with the first insulation position 3 between fixed mount 4 and the metal rising bar 2; and fixed mount top is fixed at the first insulation position 3; in the utility model embodiment; in order to make efficient lightning lead-in 1 and with forming effective clearance for insulation between the protected circuit of tower cabling; porcelain strut insulator is adopted at the first insulation position 3; because the good insulation effect of porcelain strut insulator makes this overhead distribution thunder carrying-off device and protected conducting wire form effective insulating regions.
In order further to improve the lightning protection effect of the overhead distribution thunder carrying-off device of the utility model embodiment, form insulation for the second time, wire erection bar 11 is provided with insulation support body 5, and insulation support body 5 is put on the shelf and is provided with conducting wire 9, and is fixed on the wire erection bar 11.
Analyze from overhead distribution thunder carrying-off device operation principle, when overhead distribution thunder carrying-off device operate as normal; a change discharger can produce up lightning current, thereby greatly reduces the amplitude of lightning current, thereby the voltage that forms on earth resistance also can be lowered greatly.The lightning current of letting out will flow to the earth through metal rising bar 2, independent grounding downlead 6 and independent grounding net 8 according to main current channel down; if bigger lightning current is when causing the current potential on top to raise; after having only the insulation for the first time of puncture earlier; could threaten the insulation of conducting wire 9; and thereby the energy that the arcing phenomenon consumes lightning current can appear this moment; even puncture insulation for the second time again; lightning current has not had the energy of damaging yet, so the overhead distribution thunder carrying-off device of the utility model embodiment can guarantee the safety of protected circuit effectively.In addition, because two insulation are air insulation in this present embodiment, lightning current can recover later voluntarily, and whole device can not destroy because of crossing strong thunderbolt, can use repeatedly.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.
Claims (6)
1. an overhead distribution thunder carrying-off device is used for the lightning protection of power distribution overhead transmission line, is mounted on power transmission line column by fixed mount, it is characterized in that comprising:
Be positioned at the efficient lightning lead-in at this overhead distribution thunder carrying-off device top, described efficient lightning lead-in below is equipped with the metal rising bar of this efficient lightning lead-in that is used to raise, and this metal raises rod grounded;
Be provided with the first insulation position between described fixed mount and the metal rising bar, described fixed mount top is fixed at this first insulation position;
Be installed with the wire erection bar on the described fixed mount, this wire erection bar is provided with insulation support body, and this insulation support body is put on the shelf and is provided with the conducting wire, and forms the second insulation position.
2. overhead distribution thunder carrying-off device according to claim 1 is characterized in that: described efficient lightning lead-in adopts and can produce up lightning current, and can reduce and control the field change discharger of the amplitude of lightning current.
3. overhead distribution thunder carrying-off device according to claim 1 and 2; it is characterized in that: porcelain strut insulator is adopted at the described first insulation position, and this porcelain strut insulator makes this overhead distribution thunder carrying-off device and protected conducting wire form insulating regions.
4. overhead distribution thunder carrying-off device according to claim 1 is characterized in that: described metal rising bar is by connecting the independent grounding downlead ground connection of insulating with power transmission line column, and its earth terminal is provided with the independent grounding net.
5. overhead distribution thunder carrying-off device according to claim 4 is characterized in that: described independent grounding downlead outer periphery is equipped with PVC insulation, makes itself and the body of the tower formation insulating regions of power transmission line column.
6. overhead distribution thunder carrying-off device according to claim 4 is characterized in that: described independent grounding downlead adopts the single-phase insulated cable that can form effective insulation with body of the tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200596654U CN201541112U (en) | 2009-07-02 | 2009-07-02 | Lightning collection device for overhead distribution wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200596654U CN201541112U (en) | 2009-07-02 | 2009-07-02 | Lightning collection device for overhead distribution wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201541112U true CN201541112U (en) | 2010-08-04 |
Family
ID=42592570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200596654U Expired - Fee Related CN201541112U (en) | 2009-07-02 | 2009-07-02 | Lightning collection device for overhead distribution wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201541112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488951A (en) * | 2021-06-24 | 2021-10-08 | 海南电网有限责任公司万宁供电局 | Lightning protection voltage limiting device for overhead line of power distribution network |
-
2009
- 2009-07-02 CN CN2009200596654U patent/CN201541112U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488951A (en) * | 2021-06-24 | 2021-10-08 | 海南电网有限责任公司万宁供电局 | Lightning protection voltage limiting device for overhead line of power distribution network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102157253B (en) | Outer-gap lightning arrester | |
| CN202034151U (en) | Post type lightning arrester device | |
| CN203466475U (en) | Enclosed transformer platform frame | |
| CN212393692U (en) | Device for preventing small animals from climbing power distribution equipment | |
| CN205453120U (en) | Overvoltage protector for anti -thunder circuit | |
| CN201541112U (en) | Lightning collection device for overhead distribution wire | |
| CN209199692U (en) | A kind of tension-resistant rod external series gap metal oxide arrester | |
| CN201570782U (en) | Intelligent excitation pilot discharge lightning arrester | |
| CN203260987U (en) | High-voltage line lightning arrester | |
| CN207265416U (en) | A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device | |
| CN202940460U (en) | Tower lightning arrester | |
| CN105896312A (en) | Lightning protection apparatus of installing lightning attractor on same tower of overhead power distribution line in insulation mode | |
| CN202102814U (en) | Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke | |
| CN205646747U (en) | 800 kilovolt direct current line gap installation device | |
| CN210805359U (en) | Insulator supporting type lightning arrester suitable for distribution network platform area | |
| CN203481768U (en) | Spherical fixed outer-gap lightning arrester for 10kV system insulating overhead line tension rod | |
| CN207442184U (en) | Low residual voltage, deterioration visible fixed external series gap arrester | |
| CN208337122U (en) | A kind of 10kV suspended insulated guide wire with the anti-lightning strike broken string of shielded layer | |
| CN105826892B (en) | For reducing the shielding line system of mountain area 750kV common-tower double-circuit lines shielding exposure arc | |
| CN201118170Y (en) | 20kV overhead insulation-line over-voltage protection apparatus | |
| CN205791424U (en) | The shielding line system of arc is exposed for reducing mountain area 750kV common-tower double-circuit lines shielding | |
| CN205050656U (en) | Lightning -protection over -voltage protector | |
| CN107947097A (en) | A kind of 10kV suspended insulated guide wires with the anti-lightning strike broken string of shielded layer | |
| CN2404248Y (en) | Special lightning-protection & arc extinguishing device for high-voltage transmission line | |
| CN201466704U (en) | Equipotential isolator and lightning protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20120702 |