CN211088006U - Insulator with lightning protection performance - Google Patents
Insulator with lightning protection performance Download PDFInfo
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- CN211088006U CN211088006U CN201922223791.5U CN201922223791U CN211088006U CN 211088006 U CN211088006 U CN 211088006U CN 201922223791 U CN201922223791 U CN 201922223791U CN 211088006 U CN211088006 U CN 211088006U
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- lightning protection
- lightning
- insulating sheath
- resistance valve
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Abstract
The utility model discloses an insulator with lightning protection performance relates to electric wire netting insulator technical field, and the lightning arrester position is not reserved to distribution tower among the solution general distribution lines, lacks the problem of effective lightning protection measure, the utility model discloses an insulating sheath, upper end insulating sheath to and lower extreme base, be equipped with electrically conductive lead wire in the upper end insulating sheath, electrically conductive lead wire lower extreme electricity is connected with inductance coils, and inductance coils passes through the spring and is connected with resistance valve block group electricity, and resistance valve block group lower extreme is connected with the ground lead wire electricity. The peak value of a lightning current wave head flowing through the insulator body is reduced by using an inductance coil arranged in the insulator; then, a resistance valve plate arranged in the insulator is used for conducting the lightning current to the ground; the utility model discloses not only can use as the insulator, can be used as the arrester again and carry out lightning protection to be applicable to the distribution lines, can be used to replace the arrester under the more difficult condition of arrester installation.
Description
Technical Field
The utility model relates to a power grid insulator technical field especially relates to an insulator with lightning protection performance.
Background
Most of power grid equipment is located outdoors, especially power transmission and distribution lines are almost exposed outdoors, and the equipment is easy to be damaged by lightning or induced overvoltage caused by lightning stroke to break down the insulation of the equipment. At present, the lightning arrester is generally used for protecting power grid equipment, namely the lightning arrester is provided with a nonlinear resistance valve plate by utilizing a body of the lightning arrester, and when lightning current comes, the resistance of the resistance valve plate group is rapidly reduced or approaches zero, so that the lightning current is led into the ground, and the equipment is protected from being damaged by lightning stroke.
However, the lightning stroke accident is prevented by installing an insulator and a lightning arrester on each phase of conductor of each base tower in the current distribution line. If the lightning arrester is not installed and used, the distribution line is easy to be struck by lightning and broken and has faults. In a general distribution line, the installation of the lightning arrester is not considered in the design and construction stage, so that the lightning arrester position cannot be reserved on a power distribution tower from the lightning protection angle, and the lightning arrester is difficult to install, operate and maintain in the later stage of lightning protection transformation. Meanwhile, the installation quantity of the equipment is increased, and larger workload is brought to construction and equipment operation and maintenance.
SUMMERY OF THE UTILITY MODEL
Not enough more than, the utility model provides an insulator with lightning protection performance solves distribution tower among the general distribution lines and does not reserve the arrester position, lacks the problem of effective lightning protection measure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an insulator with lightning protection performance, includes insulating sheath, upper end insulating sheath, plug and lower extreme base, be equipped with electrically conductive lead in the upper end insulating sheath, electrically conductive lead lower extreme electricity is connected with inductance coils, inductance coils passes through the spring and is connected with resistance valve block group electricity, resistance valve block group lower extreme and ground lead electricity are connected.
Further, the conductive lead penetrates out of the top of the upper end insulating sheath and is electrically connected with an external distribution line conducting wire.
Further, the ground lead is electrically connected to an external ground device.
Furthermore, a lightning stroke counter is arranged in the lower end base and comprises a lightning stroke counter circuit and a counter display, the lightning stroke counter circuit is connected with the grounding lead in series, and the counter display is arranged on the lower surface of the lower end base.
Furthermore, the core rod is arranged at the lower end of the insulating sheath, and the core rod is made of glass fiber; the core rod is connected with the resistance valve plate group through a grounding lead.
Furthermore, inductance coil, resistance valve block and plug are arranged in insulating sheath in proper order inside, and the inside space between them uses silica gel to fill sealed.
Furthermore, the resistance valve plate set is mainly prepared by blending zinc oxide materials.
Compared with the prior art, the utility model has the advantages that,
the utility model provides an insulator with lightning protection performance, which can integrate the functions of a lightning arrester and an insulator together, not only can be used as the insulator, but also can be used as the lightning arrester for lightning protection; through utilizing inductance coils to reduce the ripples head peak value of lightning current to utilize the nonlinear characteristic of resistance valve piece group, switch on the lightning current under the overvoltage condition, thereby let the lightning current leak ground, protect the distribution lines, make it not only have the lightning protection function, also have electrical insulation performance, be applicable to the distribution lines, promote distribution lines construction and fortune dimension efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic structural view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a circuit structure of a lightning strike counter according to an embodiment of the present invention;
the labels shown in the figures are; 1-upper end insulating sheath, 2-conducting lead, 3-inductance coil, 4-spring, 5-silica gel, 6-resistance valve plate group, 7-insulating sheath, 8-grounding lead, 9-core rod, 10-lower end base, 11-lightning stroke counter, 12-lightning stroke counter circuit, 13-counter display, DJ-relay, C-charging capacitor, VD-rectifier diode and R-shunt resistor.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and 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.
An insulator with lightning protection performance is disclosed, as shown in fig. 1, the insulator comprises an insulating sheath 7, an upper insulating sheath 1, a core rod 9 and a lower base 10, a conductive lead 2 is arranged in the upper insulating sheath 1, the upper end of the conductive lead 2 penetrates out of the top of the upper insulating sheath 1 and is electrically connected with an external distribution line lead, the lower end of the conductive lead 2 is electrically connected with an inductance coil 3, the inductance coil 3 is electrically connected with a resistance valve plate group 6 through a spring 4, the resistance valve plate group 6 is mainly prepared from a zinc oxide material, the lower end of the resistance valve plate group 6 is electrically connected with a grounding lead 8, the grounding lead 8 is electrically connected with an external grounding device or directly grounded, the core rod 9 is arranged in the lower end of the insulating sheath 7 and is made of a glass fiber, the core rod 9 is connected with the resistance valve plate group 6 through the grounding lead 8, the inductance coil 3, the resistance valve plate group 6 and the core rod 9 are sequentially arranged in the insulating sheath 7, an inner gap between the inductance coil 3, the resistance valve plate group 6 and the core rod 9 is filled and sealed with silica gel 5, a counter 11 is arranged in the lower base 10, the lightning counter 11 is provided with a lightning strike counter display 12 and a lightning strike counter display 13, the lightning strike counter 13 is arranged on the lower surface of the insulator, the lightning strike counter 13, the lightning strike counter is a lightning strike counter, the lightning strike counter is a lightning.
An inductance coil is arranged in the insulator and is connected or disconnected with a distribution line wire through an upper end conductive lead 2, the other end of the inductance coil 3 is connected with a resistance valve block group 6 through a spring 4, and therefore it is guaranteed that overvoltage current flows through the inductance coil 3 firstly and then flows through the resistance valve block group 6 and a lower end grounding lead 8, and lightning current is led into the ground. When the distribution circuit is struck by lightning, the lightning flows through the inductance coil 3 through the conductive lead 2, and the inductance coil 3 has the characteristic that the suppression current cannot change suddenly, so that the inductance coil 3 can reduce the wave head peak value of the lightning current flowing through the insulator body, the reduced lightning is led into the resistance valve plate group 6 through the spring 4, the resistance valve plate group 6 has the nonlinear characteristic, under the action of impulse voltage, the resistance value is very small, namely, the short circuit state is realized, and the lightning can smoothly flow through the grounding lead 8 and then is led into the ground to achieve the effect of protecting the distribution circuit.
The utility model discloses not only can use as the insulator, can be used as the arrester again and carry out lightning protection, and be applicable to distribution lines, can be used for replacing the arrester under the more difficult condition of arrester installation, the solution is in general distribution lines, the installation of arrester is not considered in design and construction stage, thereby fail to reserve the arrester position at the distribution tower from the angle of lightning protection, lead to leading to arrester installation and fortune dimension more difficult in the middle of the lightning protection transformation of later stage, the installation quantity of equipment has both been increased simultaneously, the problem of great work load has been brought for construction and equipment fortune dimension.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides an insulator with lightning protection performance, includes insulating sheath (7), upper end insulating sheath (1), plug (9) and lower extreme base (10), its characterized in that: the high-voltage switch is characterized in that a conductive lead (2) is arranged in the upper-end insulating sheath (1), the lower end of the conductive lead (2) is electrically connected with an inductance coil (3), the inductance coil (3) is electrically connected with a resistance valve piece group (6) through a spring (4), and the lower end of the resistance valve piece group (6) is electrically connected with a grounding lead (8).
2. The insulator with lightning protection performance according to claim 1, wherein: and the conductive lead (2) penetrates out of the top of the upper end insulating sheath (1) and is electrically connected with an external distribution line lead.
3. The insulator with lightning protection performance according to claim 1, wherein: the grounding lead (8) is electrically connected with an external grounding device.
4. The insulator with lightning protection performance according to claim 1, wherein: be provided with thunderbolt counter (11) in lower extreme base (10), thunderbolt counter (11) are including thunderbolt counter circuit (12) and counter display (13), thunderbolt counter circuit (12) and ground lead (8) are established ties, counter display (13) set up in lower extreme base (10) lower surface.
5. The insulator with lightning protection performance according to claim 1, wherein: the core rod (9) is arranged at the lower end of the insulating sheath (7) and is made of glass fiber; the core rod (9) is connected with the resistance valve plate group (6) through a grounding lead (8).
6. An insulator with lightning protection performance according to claim 1 or 5, wherein: the inductance coil (3), the resistance valve block group (6) and the core rod (9) are sequentially arranged in the insulating sheath (7), and the inner gap between the inductance coil and the core rod is filled and sealed by silica gel (5).
7. The insulator with lightning protection performance according to claim 1, wherein: the resistance valve plate group (6) is mainly prepared by blending zinc oxide materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922223791.5U CN211088006U (en) | 2019-12-12 | 2019-12-12 | Insulator with lightning protection performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922223791.5U CN211088006U (en) | 2019-12-12 | 2019-12-12 | Insulator with lightning protection performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211088006U true CN211088006U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922223791.5U Active CN211088006U (en) | 2019-12-12 | 2019-12-12 | Insulator with lightning protection performance |
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| CN (1) | CN211088006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081436A (en) * | 2019-12-12 | 2020-04-28 | 广西电网有限责任公司电力科学研究院 | Distribution line insulator with lightning protection function |
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2019
- 2019-12-12 CN CN201922223791.5U patent/CN211088006U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111081436A (en) * | 2019-12-12 | 2020-04-28 | 广西电网有限责任公司电力科学研究院 | Distribution line insulator with lightning protection function |
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