CN212571700U - Lightning arrester discharges in advance - Google Patents
Lightning arrester discharges in advance Download PDFInfo
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- CN212571700U CN212571700U CN202021433713.4U CN202021433713U CN212571700U CN 212571700 U CN212571700 U CN 212571700U CN 202021433713 U CN202021433713 U CN 202021433713U CN 212571700 U CN212571700 U CN 212571700U
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Abstract
The utility model relates to a lightning protection device technical field, concretely relates to lightning receptor discharges in advance. This lightning receptor discharges in advance is including setting up the lightning receiving point portion at the bracing piece top, and lightning receiving point portion is used for receiving lightning electric field and lightning current, still includes impulse generator device and the collet of bracing piece below, and impulse generator device includes pulse transformer and oscillator, and the collet below is connected with earth bolt, and pulse transformer and oscillator are established ties between lightning receiving point portion and earth bolt, and earth bolt is connected with the downlead of ground net. The utility model discloses to prior art's not enough, provide a reliable performance's lightning arrester that discharges in advance, solved the little problem of lightning protection scope of current transmission line tower lightning conductor, and the thunder that falls is accurate, safe and reliable.
Description
Technical Field
The patent of the utility model relates to a lightning protection device technical field, concretely relates to lightning receptor discharges in advance.
Background
In the power industry, lightning protection of a power transmission and transformation line is often a difficult point, although the overhead lightning conductor is installed at the top end of a power transmission line tower, the lightning protection of the power transmission and transformation line can effectively prevent the power transmission line from being struck by lightning, due to reasons such as economic cost and the like, in order to reduce investment budget and enable projects to be completed as soon as possible, many owner units require that the structural design of the power transmission line tower is simplified when designing a power transmission line tower, the protection requirement of the line for direct lightning protection is ignored, many 35kV power transmission lines are designed into tower shapes such as a flat-angle tower and a top-shaped tower, which can only be provided with one overhead lightning conductor, so that the direct lightning protection angle is seriously insufficient, a C-phase conductor has no direct lightning protection measure, when thunderstorm weather occurs nearby, the C-phase is easily struck by lightning, the C-phase is required to.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a reliable performance's lightning arrester that discharges in advance, solved the little problem of lightning protection scope of current transmission line tower lightning conductor, and the thunder that falls is accurate, safe and reliable.
The technical scheme of the utility model is realized like this: this lightning receptor discharges in advance is including setting up the lightning receiving point portion at the bracing piece top, and lightning receiving point portion is used for receiving lightning electric field and lightning current, its characterized in that: still include the collet of pulse generator device and bracing piece below, the pulse generator device includes pulse transformer and oscillator, and the collet below is connected with earth bolt, pulse transformer and oscillator are established ties between lightning-arrest point portion and earth bolt, earth bolt is connected with the downlead of ground net.
And the supporting rod is also provided with a lightning flash counter, and the pulse transformer is connected with the lightning flash counter through a lead.
The collet sets up the bowl type of through-hole for the center, the advanced discharge lightning arrester pass through the collet and fix on power line pole steel tower.
The lightning counter is 35 KV-220 KV, wherein 2ms square wave enduring current is larger than 1000A.
The utility model provides an existing defect among the background art, have following beneficial effect:
the utility model has the advantages of being scientific and reasonable in structural design, the practicality is high, has solved the little problem of lightning protection scope of current transmission line tower lightning conductor, and the lightning scope is big, and the lightning is accurate, safe and reliable, and the lightning rod that connects is lower than ordinary lightning rod. When meetting the thunder and lightning, the lightning-arrest point portion and the pulse transformer that connect the system of dodging that form complete effectual lightning-arrest, mutually supporting of oscillator discharges in advance, simultaneously pass through the collet to strong thunder and lightning rapidly, the current leakage is into the ground through power line pole steel tower, reach the lightning-arrest purpose of power line lightning protection, the lightning-arrest counter can be recorded the number of times that the thunder and lightning was received to the needle body simultaneously, and can directly look up through the lightning-arrest counter, for power line pole steel tower environment lightning protection accumulation data, the basis is put down to the summary experience.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-lightning receiving tip, 2-pulse transformer, 3-oscillator, 4-lightning counter, 5-bottom support and 6-grounding bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the lightning receptor that discharges in advance as shown in fig. 1, including setting up the lightning receiving point portion 1 at the bracing piece top, lightning receiving point portion 1 is used for lightning electric field and lightning current, still includes collet 5 of impulse generator device and bracing piece below, and the impulse generator device includes pulse transformer 2 and oscillator 3, and collet 5 below is connected with earth bolt 6, and pulse transformer 2 and oscillator 3 establish ties between lightning receiving point portion 1 and earth bolt 6, and earth bolt 6 is connected with the downlead of ground net. The support rod is also provided with a lightning flash counter 4, and the pulse transformer 2 is connected with the lightning flash counter 4 through a lead. The collet 5 sets up the bowl type of through-hole for the center, discharges in advance and connects the sudden strain of a muscle ware to pass through collet 5 to be fixed on power line pole steel tower. The lightning counter 4 is 35 KV-220 KV, wherein 2ms square wave enduring current is larger than 1000A.
The utility model discloses a working process is: the advanced discharge lightning receptor is fixed on the power line pole steel tower through a bottom support 5.
Starting
The thundercloud electric field is automatically induced, and the internal flow guide device is automatically started according to the electric field intensity.
High voltage transmission
Inducing high voltage through lightning tip
Ionizing air to generate advanced pilot
And fourthly, conducting the gap, completing the mission of the system after lightning receiving, and directly breaking down the gap by the lightning current to form a good electric path to discharge the lightning current. In dry weather, the electric field strength on the ground is about 150V/m, and the electric field strength on the ground gradually increases along with the development of thunderclouds until lightning occurs, G2 in the thunderclouds, an internal circuit is started.
Excitation and transmission of high pressure:
the high voltage pulse excited by the internal circuit of G2 is transmitted to the needle tip through the secondary amplification process of the pulse transformer 2.
Sixthly, isolation:
the needle point high voltage is separated from the grounding device by a gap, so that the tip maintains continuous high voltage to maintain air ionization discharge. An active trigger system is added on the basis of the traditional lightning rod of the lightning arrester of the early discharge lightning arrester, the trigger system can establish a repeated high-voltage pulse signal, a continuous discharge path is generated in time in the discharge process to meet with the descending leader of thundercloud, and the lightning current is introduced into the ground. The advanced discharge lightning arrester realizes the technology of transmitting high-voltage signals with strictly controlled frequency and amplitude by combining a pulse transformer and an oscillator; the energy of the lightning arrester is from an electrostatic field and an electromagnetic field and is converted into a high-voltage signal to be sent to the lightning arrester tip part 1 to generate a large amount of electric ions, and the function enables a row of leaders sent by the advanced discharge lightning arrester to advance to a place which is tens of meters or even hundreds of meters away from the lightning rod to be in lightning with the descending leaders from the thundercloud, so that the protection range of the lightning rod is expanded. Consequently when meetting the thunder and lightning, form complete effectual lightning-arrest system of connecing point portion 1 and pulse transformer 2, oscillator 3 mutually support discharge in advance, simultaneously pass through collet 5 to strong thunder and lightning rapidly, discharge into the ground through power line pole steel tower, reach the lightning-arrest purpose of power line lightning protection, lightning counter 4 can record the number of times that the thunder and lightning was received to the needle body simultaneously, and can directly look up through lightning-arrest counter, for power line pole steel tower environment lightning protection accumulation data, the basis is put down to the summary experience.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a lightning arrester discharges in advance, is used for connecing lightning electric field and lightning electric current, its characterized in that including setting up the lightning point portion (1) at the bracing piece top, lightning point portion (1): still include collet (5) of pulse generator device and bracing piece below, pulse generator device includes pulse transformer (2) and oscillator (3), and collet (5) below is connected with earth bolt (6), pulse transformer (2) and oscillator (3) are established ties between meeting flash point portion (1) and earth bolt (6), earth bolt (6) are connected with the downlead of ground net.
2. The advanced discharge lightning receptor of claim 1, wherein: the lightning flashover counter (4) is further arranged on the supporting rod, and the pulse transformer (2) is connected with the lightning flashover counter (4) through a lead.
3. The advanced discharge lightning receptor of claim 2, wherein: collet (5) sets up the bowl type of through-hole for the center, the lightning arrester of discharging in advance pass through collet (5) and fix on power line pole steel tower.
4. The early discharge lightning receptor of claim 3, characterized in that: the lightning counter (4) is 35 KV-220 KV, wherein 2ms square wave enduring current is larger than 1000A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021433713.4U CN212571700U (en) | 2020-07-20 | 2020-07-20 | Lightning arrester discharges in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021433713.4U CN212571700U (en) | 2020-07-20 | 2020-07-20 | Lightning arrester discharges in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212571700U true CN212571700U (en) | 2021-02-19 |
Family
ID=74630620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021433713.4U Active CN212571700U (en) | 2020-07-20 | 2020-07-20 | Lightning arrester discharges in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212571700U (en) |
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2020
- 2020-07-20 CN CN202021433713.4U patent/CN212571700U/en active Active
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