CN111478301A - Parameter-adjustable lightning arrester - Google Patents
Parameter-adjustable lightning arrester Download PDFInfo
- Publication number
- CN111478301A CN111478301A CN202010360203.7A CN202010360203A CN111478301A CN 111478301 A CN111478301 A CN 111478301A CN 202010360203 A CN202010360203 A CN 202010360203A CN 111478301 A CN111478301 A CN 111478301A
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- Prior art keywords
- switch
- zinc oxide
- valve plate
- oxide valve
- lightning arrester
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 160
- 239000011787 zinc oxide Substances 0.000 claims abstract description 80
- 239000007787 solid Substances 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
Abstract
A parameter-adjustable lightning arrester is formed by connecting a plurality of zinc oxide valve plate columns in parallel, wherein each zinc oxide valve plate column is wrapped in a solid insulating medium; each zinc oxide valve plate column is formed by connecting a plurality of zinc oxide valve plate units in series; a change-over switch is connected in parallel between the valve plates of each zinc oxide valve plate unit, and two ends of each zinc oxide valve plate column are respectively provided with a column change-over switch which is respectively connected in series with the change-over switches of the valve plates of the zinc oxide valve plate units at the two ends; the parameters of the lightning arrester can be adjusted by adjusting the working states of the change-over switches. The parameter-adjustable lightning arrester can adjust the state of the change-over switch according to the use requirement, thereby changing partial parameters of the lightning arrester and greatly reducing the purchase cost of the lightning arrester. The lightning arrester has the advantages of simple structure principle, convenient operation and lower cost.
Description
Technical Field
The invention relates to a parameter-adjustable lightning arrester, belonging to the technical field of high-voltage lightning arresters.
Background
The lightning arrester is a very common device in a power grid framework, and different parameters and models of lightning arresters are needed for factors such as different voltage levels, different positions and different actions.
At present, the lightning arrester with one type in the market only has one fixed parameter and has no capability of changing the parameter, and the type of the lightning arrester used is likely to change along with the change of the application environment, so that the use cost of the lightning arrester is high.
Publication No. CN 209329640 discloses a lightning protection device, which includes a current guiding unit, an insulating support member, a conductive connecting member, a grounding member, a conductor, and a lightning arrester; the gap between the conductor and the arrester can be adjusted according to the requirement.
Disclosure of Invention
The invention aims to provide a parameter-adjustable arrester in order to change a series-parallel circuit structure of zinc oxide valve plates of the arrester and achieve the purpose of adjusting partial parameters of the arrester, including current capacity, direct current reference current, nominal discharge current, rated voltage, direct current reference voltage, continuous operation voltage and the like.
The technical scheme of the invention is that the arrester with adjustable parameters is formed by connecting a plurality of zinc oxide valve plate columns in parallel, and each zinc oxide valve plate column is wrapped in a solid insulating medium; each zinc oxide valve plate column is formed by connecting a plurality of zinc oxide valve plate units in series; a change-over switch is connected in parallel between the valve plates of each zinc oxide valve plate unit, and two ends of each zinc oxide valve plate column are respectively provided with a column change-over switch which is respectively connected in series with the change-over switches of the valve plates of the zinc oxide valve plate units at the two ends; the parameters of the lightning arrester can be adjusted by adjusting the working states of the change-over switches.
The lightning arrester is formed by connecting m zinc oxide valve plate columns in parallel, and each zinc oxide valve plate column is wrapped in a solid insulating medium; each zinc oxide valve plate column is formed by connecting n zinc oxide valve plate units in series; a change-over switch is connected in parallel between the valve plates of each zinc oxide valve plate unit, and is respectively an m1 th switch, an m2 th switch, … th switch and an mn th switch; two ends of each zinc oxide valve plate column are respectively provided with a column switch which is respectively connected in series with the switches of the zinc oxide valve plate unit valve plates at the two ends; two adjacent zinc oxide valve plate columns are connected in parallel through corresponding column change-over switches.
The number of the zinc oxide valve plate columns is 2-10, namely m = 2-10.
Each zinc oxide valve plate column is connected in series with 4-20 zinc oxide valve plate units, namely n = 4-20.
The adjustable parameters of the lightning arrester comprise: current capacity, dc reference current, nominal discharge current, rated voltage, dc reference voltage and continuous operation voltage.
The lightning arrester has the beneficial effects that the lightning arrester structure is provided with a plurality of groups of zinc oxide valve plate columns which are connected in parallel, and the series-parallel circuit structure of the zinc oxide valve plates of the lightning arrester is changed by applying the change-over switch, so that part of parameters (adjustable parameters are current capacity, direct current reference current, nominal discharge current, rated voltage, direct current reference voltage and continuous operation voltage) of the lightning arrester are adjusted, and the adaptability of the lightning arrester to different application environments is enhanced. The lightning arrester can adjust the state of the change-over switch according to the use requirement, thereby changing part of parameters of the lightning arrester to be continuously used, avoiding purchasing traditional lightning arresters of other models, and greatly reducing the purchase cost of the lightning arrester. The lightning arrester has the advantages of simple structure principle, convenient operation and lower cost.
Drawings
Fig. 1 is a schematic view of a parameter-adjustable lightning arrester according to the present invention.
Detailed Description
A specific embodiment of the present invention is shown in fig. 1.
The lightning arrester with adjustable parameters in the embodiment is described by taking two columns and eight units as an example.
The arrester structure with adjustable parameters comprises a first zinc oxide valve plate column and a second zinc oxide valve plate column; the first zinc oxide valve plate column and the second zinc oxide valve plate column are connected in parallel through a column switch.
The first zinc oxide valve plate column is formed by connecting eight zinc oxide valve plate units in series, a change-over switch is connected on the valve plate of each zinc oxide valve plate unit in parallel, and the valve plate of each zinc oxide valve plate unit is respectively provided with an 11 th switch, a 12 th switch, … th switch and an 18 th switch from top to bottom; two ends of the first zinc oxide valve plate column are respectively provided with a column switch, namely a 1 st switch and a 10 th switch; the 11 th switch is connected in series with one end of the 1 st switch, and the 18 th switch is connected in series with one end of the 10 th switch.
The second zinc oxide valve plate column is formed by connecting eight zinc oxide valve plate units in series, a change-over switch is connected on the valve plate of each zinc oxide valve plate unit in parallel, and the valve plate of each zinc oxide valve plate unit is respectively provided with a 21 st switch, a 22 nd switch, … th switch and a 28 th switch from top to bottom; column change-over switches, namely a 2 nd switch and a 20 th switch, are respectively arranged at two ends of the second zinc oxide valve plate column; the 21 st switch is connected in series with one end of the 2 nd switch, and the 28 th switch is connected in series with one end of the 20 th switch.
The other end of the No. 1 switch of the first zinc oxide valve plate column is connected with the other end of the No. 2 switch of the second zinc oxide valve plate column; the other end of the 10 th switch of the first zinc oxide valve plate column is connected with the other end of the 20 th switch of the second zinc oxide valve plate column.
The adjustable parameters of the lightning arrester of the embodiment comprise through-current capacity, direct current reference current, nominal discharge current, rated voltage, direct current reference voltage and continuous operation voltage.
The parameters are adjusted by the working state of the selector switch:
(1) the initial state of the lightning arrester is that the 1 st switch, the 10 th switch, the 15 th switch, the 16 th switch, the 17 th switch and the 18 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, the 13 th switch and the 14 th switch are opened; when a user wants to increase the rated voltage, the continuous operation voltage and the direct current reference voltage of the lightning arrester to 2 times of the original values, the 1 st switch and the 10 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, … … and the 18 th switch are opened.
(2) The initial state of the lightning arrester is that the 1 st switch, the 10 th switch, the 15 th switch, the 16 th switch, the 17 th switch and the 18 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, the 13 th switch and the 14 th switch are opened; when a user wants to increase the rated voltage, the continuous operation voltage and the direct current reference voltage of the lightning arrester to 1.5 times of the original values, the 1 st switch, the 10 th switch, the 17 th switch and the 18 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, the 13 th switch, the 14 th switch, the 15 th switch and the 16 th switch are opened.
(3) The initial state of the lightning arrester is that the 1 st switch, the 10 th switch, the 15 th switch, the 16 th switch, the 17 th switch and the 18 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, the 13 th switch and the 14 th switch are opened; when a user wants to increase the current capacity, the dc reference current and the nominal discharge current of the lightning arrester to 2 times the original values, the 1 st switch, the 10 th switch, the 2 nd switch, the 20 th switch, the 15 th switch, the 16 th switch, the 17 th switch, the 18 th switch, the 25 th switch, the 26 th switch, the 27 th switch and the 28 th switch are closed, and the 11 th switch, the 12 th switch, the 13 th switch, the 14 th switch, the 21 st switch, the 22 th switch, the 23 th switch and the 24 th switch are opened.
(4) The initial state of the lightning arrester is that the 1 st switch, the 10 th switch, the 15 th switch, the 16 th switch, the 17 th switch and the 18 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, the 13 th switch and the 14 th switch are opened; when a user wants to increase the current capacity, the DC reference current, the nominal discharge current, the rated voltage, the continuous operation voltage and the DC reference voltage of the lightning arrester to 2 times of the original values, the 1 st switch, the 10 th switch and the 2 nd switch are closed, and the 20 th switch, the 11 th switch, the 12 th switch, … …, the 18 th switch, the 21 st switch, the 22 nd switch, … … and the 28 th switch are opened.
Claims (6)
1. The lightning arrester with adjustable parameters is characterized by being formed by connecting a plurality of zinc oxide valve plate columns in parallel, wherein each zinc oxide valve plate column is wrapped in a solid insulating medium; each zinc oxide valve plate column is formed by connecting a plurality of zinc oxide valve plate units in series; a change-over switch is connected in parallel between the valve plates of each zinc oxide valve plate unit, and two ends of each zinc oxide valve plate column are respectively provided with a column change-over switch which is respectively connected in series with the change-over switches of the valve plates of the zinc oxide valve plate units at the two ends; the parameters of the lightning arrester can be adjusted by adjusting the working states of the change-over switches.
2. A parametric adjustable arrester as claimed in claim 1 wherein the arrester is formed by m zinc oxide valve posts connected in parallel, each zinc oxide valve post being encased in a solid insulating medium; each zinc oxide valve plate column is formed by connecting n zinc oxide valve plate units in series; a change-over switch is connected in parallel between the valve plates of each zinc oxide valve plate unit, and is respectively an m1 th switch, an m2 th switch, … th switch and an mn th switch; two ends of each zinc oxide valve plate column are respectively provided with a column switch which is respectively connected in series with the switches of the zinc oxide valve plate unit valve plates at the two ends; two adjacent zinc oxide valve plate columns are connected in parallel through corresponding column change-over switches.
3. A parameter adjustable lightning arrester according to claim 1, characterized in that the number of said zinc oxide valve pillars is 2-10, i.e. m = 2-10.
4. A parameter adjustable lightning arrester according to claim 1, characterized in that each zinc oxide valve plate column is connected in series with 4-20 zinc oxide valve plate units, i.e. n = 4-20.
5. An arrester with adjustable parameters according to claim 1, characterized in that the arrester adjustable parameters comprise: current capacity, dc reference current, nominal discharge current, rated voltage, dc reference voltage and continuous operation voltage.
6. The parameter adjusting method of the arrester with the adjustable parameters according to claims 1-5, characterized in that the method takes two columns and eight units as an example, the two columns are respectively a first zinc oxide valve plate column and a second zinc oxide valve plate column;
the first zinc oxide valve plate column is formed by connecting eight zinc oxide valve plate units in series, a change-over switch is connected to the valve plate of each zinc oxide valve plate unit in parallel, the change-over switch comprises a 11 th switch, a 12 th switch, … th switch and an 18 th switch from top to bottom, the 11 th switch is connected with one end of a 1 st switch of the first zinc oxide valve plate column change-over switch in series, and the 18 th switch is connected with one end of a 10 th switch of the first zinc oxide valve plate column change-over switch in series;
the second zinc oxide valve plate column is formed by connecting eight zinc oxide valve plate units in series, a change-over switch is connected to the valve plate of each zinc oxide valve plate unit in parallel, the change-over switch is respectively a 21 st switch, a 22 nd switch, … nd switch and a 28 th switch from top to bottom, the 21 st switch is connected with one end of a 2 nd switch of the first zinc oxide valve plate column change-over switch in series, and the 28 th switch is connected with one end of a 20 th switch of the first zinc oxide valve plate column change-over switch in series;
the other end of the No. 1 switch of the first zinc oxide valve plate column is connected with the other end of the No. 2 switch of the second zinc oxide valve plate column; the other end of the 10 th switch of the first zinc oxide valve plate column is connected with the other end of the 20 th switch of the second zinc oxide valve plate column;
the parameter adjusting method of the two-column eight-unit lightning arrester comprises the following steps:
(1) the initial state of the lightning arrester is that the 1 st switch, the 10 th switch, the 15 th switch, the 16 th switch, the 17 th switch and the 18 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, the 13 th switch and the 14 th switch are opened; when a user wants to increase the rated voltage, the continuous operation voltage and the direct current reference voltage of the lightning arrester to 2 times of the original values, the 1 st switch and the 10 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, … … and the 18 th switch are opened;
(2) the initial state of the lightning arrester is that the 1 st switch, the 10 th switch, the 15 th switch, the 16 th switch, the 17 th switch and the 18 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, the 13 th switch and the 14 th switch are opened; when a user wants to increase the rated voltage, the continuous operation voltage and the direct current reference voltage of the lightning arrester to 1.5 times of the original values, the 1 st switch, the 10 th switch, the 17 th switch and the 18 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, the 13 th switch, the 14 th switch, the 15 th switch and the 16 th switch are opened;
(3) the initial state of the lightning arrester is that the 1 st switch, the 10 th switch, the 15 th switch, the 16 th switch, the 17 th switch and the 18 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, the 13 th switch and the 14 th switch are opened; when a user wants to increase the current capacity, the direct current reference current and the nominal discharge current of the lightning arrester to 2 times of the original values, the 1 st switch, the 10 th switch, the 2 nd switch, the 20 th switch, the 15 th switch, the 16 th switch, the 17 th switch, the 18 th switch, the 25 th switch, the 26 th switch, the 27 th switch and the 28 th switch are closed, and the 11 th switch, the 12 th switch, the 13 th switch, the 14 th switch, the 21 st switch, the 22 th switch, the 23 th switch and the 24 th switch are opened;
(4) the initial state of the lightning arrester is that the 1 st switch, the 10 th switch, the 15 th switch, the 16 th switch, the 17 th switch and the 18 th switch are closed, and the 2 nd switch, the 20 th switch, the 11 th switch, the 12 th switch, the 13 th switch and the 14 th switch are opened; when a user wants to increase the current capacity, the direct current reference current, the nominal discharge current, the rated voltage, the continuous operation voltage and the direct current reference voltage of the lightning arrester to 2 times of the original values, the 1 st switch, the 10 th switch and the 2 nd switch are closed, and the 20 th switch, the 11 th switch, the 12 th switch, the … … th switch, the 18 th switch, the 21 st switch, the 22 nd switch, the … … th switch and the 28 th switch are opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360203.7A CN111478301B (en) | 2020-04-30 | Arrester with adjustable parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360203.7A CN111478301B (en) | 2020-04-30 | Arrester with adjustable parameters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111478301A true CN111478301A (en) | 2020-07-31 |
| CN111478301B CN111478301B (en) | 2024-05-14 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10340774A (en) * | 1997-06-06 | 1998-12-22 | Mitsubishi Electric Corp | Arrestor and gas insulation switching device using thereof |
| CN110308354A (en) * | 2019-07-24 | 2019-10-08 | 王炎 | A kind of multicolumn lightning arrester connected in parallel experimental rig and its test method |
| CN212304742U (en) * | 2020-04-30 | 2021-01-05 | 国网江西省电力有限公司电力科学研究院 | Parameter-adjustable lightning arrester |
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10340774A (en) * | 1997-06-06 | 1998-12-22 | Mitsubishi Electric Corp | Arrestor and gas insulation switching device using thereof |
| CN110308354A (en) * | 2019-07-24 | 2019-10-08 | 王炎 | A kind of multicolumn lightning arrester connected in parallel experimental rig and its test method |
| CN212304742U (en) * | 2020-04-30 | 2021-01-05 | 国网江西省电力有限公司电力科学研究院 | Parameter-adjustable lightning arrester |
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