CN110556711A - Self-charging pulse discharging lightning arrester - Google Patents
Self-charging pulse discharging lightning arrester Download PDFInfo
- Publication number
- CN110556711A CN110556711A CN201810559883.8A CN201810559883A CN110556711A CN 110556711 A CN110556711 A CN 110556711A CN 201810559883 A CN201810559883 A CN 201810559883A CN 110556711 A CN110556711 A CN 110556711A
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- CN
- China
- Prior art keywords
- lightning
- pulse
- energy storage
- self
- capacitor
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
Abstract
The invention discloses a self-charging pulse discharge lightning arrester, which comprises a lightning arresting tip, a pulse transformer, an energy storage pulse capacitor, a self-breakdown switch, a metal shell and a grounded lightning arresting rod. Under the action of an atmospheric electric field, corona discharge automatically charges the energy storage pulse capacitor, after the energy storage pulse capacitor is charged to a set threshold value, the energy storage pulse capacitor discharges through a self-breakdown switch to generate pulse current, the pulse current is boosted through a pulse transformer and then is added to a lightning receiving tip, the formed high-voltage pulse current breaks through a charge shielding layer generated by the corona to generate an upward lightning guiding pilot, and active lightning receiving is realized. The device can automatically charge the energy storage pulse capacitor without an external power supply, and the charge shielding layer generated by corona is broken by using high-voltage pulse current, so that the lightning receiving probability is greatly improved.
Description
Technical Field
The invention relates to a lightning arrester, in particular to a self-charging pulse discharge type lightning arrester.
Background
Natural lightning is a very common and most intense discharge phenomenon in nature, with intense electromagnetic radiation. Lightning, particularly the ground lightning, has great influence on the production life of human beings due to the huge energy and power of the lightning, and the lightning threatens the reliable operation of electronic equipment seriously in the information-based modern society. In order to reduce the destructive effect of lightning, mankind invented a lightning receptor commonly known as "lightning rod". In addition to the conventional lightning receptor, people invent an advanced discharge lightning receptor and a high-voltage active lightning receptor, and the basic principle of the advanced discharge lightning receptor and the high-voltage active lightning receptor is improved on the structure or the circuit, so that the lightning receptor generates stronger corona discharge to achieve the purpose of advanced lightning receptor. However, in either the conventional lightning receptor or the improved advanced discharge lightning receptor, the corona generated by the lightning receptor forms a charge shielding layer around the lightning receptor, which is disadvantageous for lightning.
Disclosure of Invention
Aiming at the problems and the defects of the existing lightning receptor, the invention aims to design a self-charging pulse discharge lightning receptor, which fully utilizes an electric field generated by thunderstorm cloud to automatically charge an energy storage pulse capacitor, and automatically discharges instantly after the charging voltage reaches a set threshold value to form pulse current to break through a charge shielding layer around the lightning receptor, so as to excite a lightning guide and trigger lightning, thereby realizing more effective lightning receptor and lightning protection.
The purpose of the invention can be realized by the following technical scheme:
The utility model provides a from impulse discharge lightning arrester of charging, is including lightning the point, pulse transformer, energy storage pulse capacitor, from breakdown switch, metal casing and earthed lightning rod, its characterized in that, the lightning rod is connected to energy storage pulse capacitor one utmost point, another extremely connect the lightning the point behind the secondary of pulse transformer in series, the primary one end of pulse transformer connects one utmost point (upper end) of energy storage pulse capacitor, the other end connects another utmost point (lower extreme) of energy storage pulse capacitor behind the breakdown switch in series.
The pulse transformer, the energy storage pulse capacitor and the self-breakdown switch are arranged in the metal shell, and solid insulating materials are filled in the metal shell.
The metal shell is in a shape of a rotator, the center of the upper end of the metal shell is directly connected with the lightning receiving tip, the center of the lower end of the metal shell is arranged on the lightning receiving rod through a solid insulating material, and a gap is reserved between the metal shell and the lightning receiving rod and is electrically insulated; the outer circumference of the metal shell protrudes downwards, so that rainwater is prevented from directly flowing into a gap between the metal shell and the lightning rod.
The homonymous end of the primary of the pulse transformer is connected with the lower end of the energy storage pulse capacitor in series after being connected with the self-breakdown switch and is connected with the lightning rod, and the homonymous end of the secondary of the pulse transformer is connected with the upper end of the energy storage pulse capacitor and is connected with the other end of the primary, so that the voltage direction of the energy storage pulse capacitor is connected with the voltage direction of the secondary in series in the same direction, and the voltage superposition in the same direction is achieved.
The number of turns of the primary side of the pulse transformer is less than that of the secondary side of the pulse transformer, and pulse voltage boosting is formed.
The shell of the self-breakdown switch is an insulating solid, two electrodes of the switch are led out from two ends of the shell, and insulating gas or insulating oil is filled in the shell.
The principle of the self-charging pulse discharge lightning arrester is as follows:
Under the action of thunderstorm cloud atmospheric electric field, corona discharge is generated upwards on the secondary of a grounded lightning rod, an energy storage pulse capacitor and a pulse transformer and a lightning receiving tip passage, the energy storage pulse capacitor is automatically charged, when the voltage is charged to a set threshold value, the energy storage pulse capacitor instantly discharges through a primary and self-breakdown switch of the pulse transformer to generate pulse current, the pulse current is boosted by the pulse transformer and then is added to the lightning receiving tip, a charge shielding layer generated by the corona is broken by the high-voltage pulse current, an upward lightning leading guide is generated, early discharge is achieved, active lightning receiving is realized, after the lightning return current is generated, a gap between a metal shell and the lightning rod is broken by high voltage, and the high current of the lightning return is flowed into the ground along the lightning receiving tip, the metal shell and the lightning receiving rod.
Compared with the prior art, the invention has the following remarkable advantages:
1. the energy storage pulse capacitor can be automatically charged without an external power supply.
2. the voltage of the energy storage pulse capacitor is boosted by the pulse transformer to generate an ascending pilot more easily.
3. The high-voltage pulse current is utilized to break through the charge shielding layer generated by the corona, so that the lightning receiving probability of the lightning is greatly improved.
Drawings
Fig. 1 is a schematic diagram of a self-charging pulse discharging lightning receptor of the invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
Example (b): referring to fig. 1, a self-charging pulse discharge lightning receptor comprises a lightning receptor tip 1, a pulse transformer 2, an energy storage pulse capacitor 3, a self-breakdown switch 4, a metal shell 6 made of stainless steel and a lightning receptor rod 7 connected to the ground, wherein the metal shell is filled with an insulating solid insulating material 5 such as epoxy resin. One pole of the energy storage pulse capacitor 3 is connected with the lightning rod 7, the other pole is connected with the secondary pole of the pulse transformer 2 in series and then connected with the lightning receiving tip 1, one primary end of the pulse transformer 2 is connected with one pole (upper end) of the energy storage pulse capacitor 3, and the other end is connected with the other pole (lower end) of the energy storage pulse capacitor 3 in series after being connected with the self-breakdown switch 4.
The pulse transformer 2, the energy storage pulse capacitor 3 and the self-breakdown switch 4 are arranged in a metal shell 6.
The metal shell 6 is in a shape of a rotator, the center of the upper end of the metal shell is directly connected with the lightning receiving tip 1, the center of the lower end of the metal shell is installed on the lightning receiving rod 7 through the solid insulating material 5, and a gap 8 is reserved between the metal shell 6 and the lightning receiving rod 7 and is electrically insulated; the outer circumference of the metal shell 6 protrudes downwards to prevent rainwater from directly dripping into the gap 8 between the metal shell and the lightning rod 7.
The homonymous end of the primary of the pulse transformer 2 is connected in series with the self-breakdown switch 4 and then connected to the lower end of the energy storage pulse capacitor 3 and is connected with the lightning rod 7, the homonymous end of the secondary of the pulse transformer is connected to the upper end of the energy storage pulse capacitor 3 and is connected with the other end of the primary, so that the voltage direction of the energy storage pulse capacitor 3 is connected in series with the voltage direction of the secondary in the same direction, and the voltage superposition in the same direction is achieved.
The number of primary turns of the pulse transformer 2 is smaller than that of secondary turns, so that the pulse voltage is boosted.
The self-breakdown switch 4 is made of an insulating solid, and two electrodes of the switch are led out from two ends of the self-breakdown switch, and the discharge voltage threshold of the energy storage pulse capacitor can be adjusted by adjusting the internal distance between the two electrodes, wherein the self-breakdown switch 4 is filled with insulating gas such as inert gas and SF 6, or insulating oil such as transformer oil and refined rapeseed oil.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.
Claims (6)
1. the utility model provides a self-charging pulse discharge lightning arrester, is including lightning receiving point, pulse transformer, energy storage pulse capacitor, from breakdown switch, metal casing and earthed lightning rod, its characterized in that, the lightning rod is being connected to energy storage pulse capacitor one utmost point, and another utmost point is connecing after establishing ties pulse transformer's secondary and is connecing the lightning receiving point, and pulse transformer's primary one end connects energy storage pulse capacitor's one utmost point, and the other end establishes ties and connects energy storage pulse capacitor's another utmost point after breaking down the switch.
2. The self-charging pulse discharge lightning arrester as claimed in claim 1, wherein the pulse transformer, the energy storage pulse capacitor and the self-breakdown switch are mounted in a metal casing, and the metal casing is filled with a solid insulating material.
3. The self-charging pulse discharge lightning receptor according to claim 1, wherein the metal shell is in the shape of a rotator, the center of the upper end of the metal shell is directly connected with the lightning receptor tip, the center of the lower end of the metal shell is mounted on the lightning receptor through an insulating material, and a gap is left between the metal shell and the lightning receptor and is electrically insulated; the outer circumference of the metal shell protrudes downwards, so that rainwater is prevented from directly flowing into a gap between the metal shell and the lightning rod.
4. The self-charging pulse discharging lightning arrester as claimed in claim 1, wherein the pulse transformer has a primary end connected to the lower end of the energy storage pulse capacitor in series with the self-breakdown switch and connected to the lightning rod, and a secondary end connected to the upper end of the energy storage pulse capacitor and connected to the other end of the primary, so that the voltage direction of the energy storage pulse capacitor and the voltage direction of the secondary are connected in series in the same direction, and the voltages are superposed in the same direction.
5. The self-charging pulsed discharge lightning strike device according to claim 1, wherein the number of primary turns of the pulse transformer is less than the number of secondary turns of the pulse transformer, thereby providing a boost to the pulse voltage.
6. The self-charging pulse discharge lightning arrester as claimed in claim 1, wherein the self-breakdown switch has a housing made of an insulating solid, two electrodes extending from the two ends of the switch, and an insulating gas or an insulating oil filled in the two electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810559883.8A CN110556711A (en) | 2018-06-02 | 2018-06-02 | Self-charging pulse discharging lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810559883.8A CN110556711A (en) | 2018-06-02 | 2018-06-02 | Self-charging pulse discharging lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110556711A true CN110556711A (en) | 2019-12-10 |
Family
ID=68734509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810559883.8A Pending CN110556711A (en) | 2018-06-02 | 2018-06-02 | Self-charging pulse discharging lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110556711A (en) |
-
2018
- 2018-06-02 CN CN201810559883.8A patent/CN110556711A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191210 |