CN212751756U - Power transmission line pulling lightning wave-resisting device and lightning arrester - Google Patents
Power transmission line pulling lightning wave-resisting device and lightning arrester Download PDFInfo
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- CN212751756U CN212751756U CN202021536408.8U CN202021536408U CN212751756U CN 212751756 U CN212751756 U CN 212751756U CN 202021536408 U CN202021536408 U CN 202021536408U CN 212751756 U CN212751756 U CN 212751756U
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Abstract
The utility model discloses a transmission line lapu connects sudden strain of a muscle wave trapper and arrester, wherein, transmission line lapu connects sudden strain of a muscle wave trapper and energy storage component including discharging probe, L type wave trapper in advance, and wherein, L type wave trapper is parallelly connected with energy storage component, and the one end ground connection of L type wave trapper and energy storage component, and the other end of L type wave trapper and energy storage component sets up formation spark gap with the terminal relative interval of discharging probe in advance. The utility model discloses a discharge probe in advance with the thunder and lightning leading-in, utilize the probe with spark gap who forms between L type wave arrester and the energy storage component for the thunder and lightning shock wave is in the conduction process, and the duty cycle of the wave head of thunder and lightning widens in the time delay, makes the wave head steepness lower, thereby makes the amplitude of thunder and lightning reduce, and the position that reachs the shaft tower top also correspondingly reduces, has avoided insulator chain impact flashover tripping operation. The Lap lightning arrester is mainly used for preventing insulator impact flashover caused by lightning counterattack and counterattack on a power transmission line.
Description
Technical Field
The utility model relates to a lightning protection technical field, more specifically relates to a transmission line is drawn and is connect sudden strain of a muscle wave arrester and arrester.
Background
Thunder is an ancient and mysterious natural phenomenon, and the experience of people struggling with thunder is recorded in each period of human history. Since Russian Duoli-based three-phase induction motors and transformers realize remote transmission of electric energy, interference and damage of lightning on remote transmission of electric power never stop for more than 100 years. Along with the huge demand of national economic development on electric power, the damage of lightning to high-voltage transmission lines is increased, so that the lightning protection device has very important significance on the lightning protection of the high-voltage transmission lines and the extra-high voltage transmission lines on the pole towers.
At present, the traditional lightning rod arranged on a high-voltage transmission line tower cannot prevent counterattack and shielding failure of lightning due to the fact that the traditional lightning rod absorbs the high-frequency energy difference of the lightning, so that the practical problem that the insulator is broken down by the lightning and the line is tripped cannot be solved; meanwhile, the actual difficulty that the traditional lightning rod is installed on the tower is inconvenient to operate exists.
SUMMERY OF THE UTILITY MODEL
The utility model provides a transmission line is drawn to meet sudden strain of a muscle wave trapper and arrester to solve above-mentioned problem.
According to the utility model discloses an aspect provides transmission line lapel dodges wave damper, including discharge probe, L type wave damper and energy storage component in advance, L type wave damper with energy storage component is parallelly connected, just L type wave damper with energy storage component's one end ground connection, L type wave damper with energy storage component's the other end with the terminal relative interval of discharge probe sets up formation spark gap in advance.
On the basis of the scheme, the early discharge probe is preferably a metal flow guide rod with a tip-shaped top.
In addition to the above, preferably, a polymer insulator is provided outside the L-shaped wave barrier and the energy storage element.
The utility model also provides an arrester, the top of arrester is equipped with as above transmission line the pul meet and dodge the wave trapper.
The utility model discloses a transmission line is drawn and is connect sudden strain of a muscle wave trapper, it is leading-in with the thunder and lightning through the probe that discharges in advance, utilize discharge in advance the probe with the spark gap that forms between L type wave trapper and the energy storage component for the thunder and lightning impulse wave is in the conduction in-process, and its bandwidth is wideer, and the ripples head steepness is lower, thereby makes the amplitude of thunder and lightning reduce, and the position that reachs the shaft tower top also correspondingly reduces, has avoided insulator chain impact flashover tripping operation.
Drawings
Fig. 1 is a schematic diagram of a power transmission line lapel lightning wave trap of the present invention;
fig. 2 is a structural diagram of the power transmission line lapel lightning wave trap of the utility model;
FIG. 3 is a graph of the impulse voltage waveform of electricity directly discharging with the top of the tower;
fig. 4 is a lightning wave diagram of a power transmission line Lap lightning wave trap using the utility model;
fig. 5 is the local structure diagram of the installation of the power transmission line lapel lightning wave trap of the utility model.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, the present invention relates to a transmission line lapel lightning arrester, which includes an early discharge probe 10, an L-shaped arrester 20 and an energy storage element 30, wherein the L-shaped arrester 20 is connected in parallel with the energy storage element, one end of the L-shaped arrester 20 and one end of the energy storage element are grounded, and the other end of the L-shaped arrester 20 and the other end of the energy storage element are spaced from the end of the early discharge probe 10 to form a spark gap 40.
It is worth explaining that, the advanced discharge probe 10 of the present invention is a metal flow guiding rod with a tip-shaped top, and the polymer insulator is arranged outside the L-shaped wave damper 20 and the energy storage element 30, and the polymer insulator is wrapped on the outer circular surfaces of the L-shaped wave damper 20 and the energy storage element 30, and the outer circular surfaces of the polymer insulator form a plurality of umbrella-shaped structures arranged at intervals.
The utility model also provides an arrester, the top of arrester is equipped with transmission line the above-mentioned puling of meeting dodge wave trap, is about to the arrester of the utility model is installed at the top of the tower, and transmission line the puling of meeting dodge wave trap is installed on arrester, when the thundercloud discharges and hits at the top of shaft tower, the thunder and lightning impulse wave forms another lightning arrester in the process of thinking that the shaft tower flows in; and because the transmission line Lapu flashover wave trap is installed and has formed a wave-blocking device on the passageway of thunder and lightning to shaft tower, consequently, after this management floor ground of thunder and lightning dodges, along its transmission downlink passageway, hit the transmission line Lapu flashover wave trap on the top of the tower, carry out dispersion and reflection with the thunder and lightning wave through transmission line Lapu flashover wave trap for the thunder and lightning wave takes place the distortion, and the front edge steeply reduces, and the wave form slows down, and the voltage peak value of front edge reduces, and the back porch widens slightly, through steepness reduction and impact time delay, makes the instantaneous impact intensity amplitude greatly reduced of thunder and lightning wave.
It is worth to say that, the utility model discloses a transmission line is a general sudden strain of a muscle wave trapper has installed bracing piece 50 in the bottom of L type wave trapper 20 and energy storage component 30, during the use, utilizes bolt locking to fix on the tower top through passing through the splint with the both sides of bracing piece 50 to make things convenient for its quick installation and dismantlement, specific structure is as shown in fig. 5.
Wherein, the diameter of the support rod 50 is 20-100 mm, and the support rod can be an epoxy resin rod, an iron rod, a stainless steel rod or a copper rod; of course, the support rod 50 may also be a hollow or solid rod. It should be noted that the support rod may also be made of epoxy resin rod, iron rod, stainless steel rod, copper rod, etc. The clamping plate can be made of one of aluminum alloy, iron, stainless steel and copper materials.
The utility model discloses a transmission line is a general sudden strain of a muscle wave trapper, it is leading-in with the thunder and lightning through discharging probe 10 in advance, utilize the spark gap 40 that forms in advance between probe 10 and the L type wave trapper 20 and the energy storage component of discharging for the thunder and lightning impulse wave is at the conduction in-process, and its bandwidth is wideer, and the ripples head steepness is lower, thereby makes the amplitude of thunder and lightning reduce, and the position that reachs the shaft tower top also correspondingly reduces, has avoided insulator chain impact flashover tripping operation. Wherein, the direct impulse voltage waveform with the pole top of the tower of thunder and lightning is shown in fig. 3, and pass through the utility model discloses a behind the transmission line lapel connects the sudden strain of a muscle wave trapper, its thunder wave form is shown in fig. 4.
The utility model discloses a transmission line lappet connects sudden strain of a muscle wave trapper through utilizing spark gap 40, L type trapper 20 and energy storage component, can be so that lightning wave shape widens, falls the precipitous reduction, and can share top of the tower surge overvoltage, reduces insulator surge voltage drop, improves the resistant thunder level of circuit.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement 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 power transmission line Lap lightning wave trap is characterized by comprising an early discharge probe, an L-shaped wave trap and an energy storage element, wherein the L-shaped wave trap is connected with the energy storage element in parallel, one end of the L-shaped wave trap and one end of the energy storage element are grounded, and the other end of the L-shaped wave trap and the other end of the energy storage element are oppositely arranged at intervals with the tail end of the early discharge probe to form a spark gap.
2. The transmission line lapp lightning wave trap of claim 1, wherein the early discharge probe is a metal flow guide rod with a pointed top.
3. The transmission line rap flash wave trap of claim 1, wherein a polymer insulator is provided outside the L-shaped wave trap and the energy storage element.
4. An arrester, characterized in that the top of the arrester is provided with a transmission line rap arrester according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021536408.8U CN212751756U (en) | 2020-07-29 | 2020-07-29 | Power transmission line pulling lightning wave-resisting device and lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021536408.8U CN212751756U (en) | 2020-07-29 | 2020-07-29 | Power transmission line pulling lightning wave-resisting device and lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212751756U true CN212751756U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021536408.8U Active CN212751756U (en) | 2020-07-29 | 2020-07-29 | Power transmission line pulling lightning wave-resisting device and lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212751756U (en) |
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2020
- 2020-07-29 CN CN202021536408.8U patent/CN212751756U/en active Active
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