CN210073517U - Transmission line arrester device for adjusting air gap according to environmental data - Google Patents
Transmission line arrester device for adjusting air gap according to environmental data Download PDFInfo
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- CN210073517U CN210073517U CN201920707015.XU CN201920707015U CN210073517U CN 210073517 U CN210073517 U CN 210073517U CN 201920707015 U CN201920707015 U CN 201920707015U CN 210073517 U CN210073517 U CN 210073517U
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Abstract
The utility model relates to a transmission line arrester device for adjusting air gap according to environmental data, which comprises an arrester body connected with an insulator in parallel, wherein the high-voltage end of the arrester body is connected with a transmission line through the air gap, and the low-voltage end of the arrester body is connected to a transmission tower through a distance adjusting device; the power transmission tower is provided with a wireless transmitting and receiving device, an infrared distance measuring device, an air humidity sensor and an air particulate matter sensor, and measured data are transmitted to a background data monitoring center for storage through the wireless transmitting and receiving device. The utility model can effectively reduce the frequent start of the lightning arrester, and can greatly prolong the service life of the lightning arrester; the air gap distance adjusting device has the function of adjusting the air gap distance, and can adjust the air gap distance according to different grades of power transmission lines and different atmospheric conditions; the air gap distances in different atmospheric environments can be recorded in the background.
Description
Technical Field
The utility model belongs to the technical field of arrester protection device, concretely relates to can be according to transmission line arrester device in air circumstance data conditioning air clearance.
Background
The power system is the most serious field suffering from lightning disasters, and the power transmission line is mostly built in an overhead mode and is higher than surrounding buildings, so the power transmission line is very easy to be struck by lightning. Lightning damages a power transmission line through two ways of direct lightning strike and inductive lightning, so that the power transmission line is tripped to influence normal power supply, and even the switch equipment is damaged to cause personnel and property loss. Among the accidents of 275kV-500kV transmission lines in a plurality of countries such as the United states published by the international large power grid conference, about six accidents are caused by lightning stroke, so that active research is carried out on the lightning stroke resistance of the transmission lines worldwide.
At present, a zinc oxide arrester is installed on a line, which is a main technical means for enhancing the lightning stroke resistance of a power transmission line, the line arrester and an insulator are installed in parallel, when a pole tower or a lead is struck by lightning, the arrester can be conducted before an insulator string flashover, so that a part of lightning flows through the arrester to be released, the voltage at two ends of the insulator is clamped to a safe level, the insulator is reliably prevented from flashover, and the line lightning stroke trip-out rate is reduced.
The gapless line arrester can frequently act under the action of overvoltage operation, and the stability is not high. Finally, as no gap is formed in isolation, the maintenance-free function cannot be realized, and the normal power supply of the power transmission line can be directly endangered once an accident occurs to the lightning arrester. Although the external pure air gap type lightning arrester can avoid frequent starting of the lightning arrester, the selection of the air gap distance ensures the normal work of the lightning arrester, but the selection of the air gap distance is related to the humidity, the component ratio and the like of air. In addition, the arrester should be started before the insulator, and filth also can influence the insulating characteristic of insulator in addition, if not adjusting the air gap, probably lead to the insulator to be punctured, and the arrester has not started yet to can not play the protection effect, that is to say the distance of air gap is a variable value, but does not have the novel product of relevant intelligent regulation air gap at present yet.
In view of the important role of the lightning arrester of the power transmission line in the lightning protection of the line, the optimization design is carried out on the basis of analyzing and summarizing the advantages and the disadvantages of the existing lightning arrester of the line, a novel lightning arrester of the power transmission line, which is convenient to install and maintain, excellent in electrical performance and safe and reliable in operation, is developed, and an economic and effective installation scheme is made, so that the practical significance is great.
Disclosure of Invention
To the technical problem, the utility model provides a can be according to atmospheric environment data adjustment air gap's transmission line arrester device. The utility model discloses a transmission line arrester device, owing to increased the air gap, for when not adding the air gap, improved arrester starting voltage's critical value to avoided frequently starting, can prolong the life of arrester, and the device's air gap can in time be adjusted according to the different conditions of the atmospheric environment that the arrester is located. The utility model discloses the technical scheme who adopts as follows:
a transmission line arrester device for adjusting air gaps according to environmental data comprises an arrester body connected with an insulator in parallel, wherein a high-voltage end of the arrester body is connected with a transmission line through the air gaps, and a low-voltage end of the arrester body is connected to a transmission iron tower through a distance adjusting device; the power transmission iron tower is provided with a wireless transmitting and receiving device and a lightning arrester environmental data monitoring device which are electrically connected with each other. The lightning arrester environmental data monitoring device include: the infrared distance measuring device, the air humidity sensor, the air particulate matter sensor and the wireless transmitting and receiving device transmit measured data to the background data monitoring center for storage.
Wherein, the arrester body is the core device of this utility model device for absorb transient state overvoltage's energy. The distance adjusting device is used for adjusting the air gap distance between the high-voltage end of the lightning arrester body and the power transmission line so as to adapt to different working conditions. The infrared distance measuring device is used for measuring the air gap distance between the high-voltage end of the lightning arrester body and the power transmission line. The air humidity sensor and the air particulate matter sensor are respectively used for monitoring real-time air humidity and particulate matter content, particularly recording the atmospheric condition when the air gap is communicated, and the air gap distance under different environmental states has reference significance for adjusting the air gap distance in the later period. The wireless transmitting and receiving device is used to transmit and receive various wireless signals. The background data monitoring center is used for recording air gap distance data under different working conditions as a follow-up improvement basis.
One end of the distance adjusting device is fixedly installed on the power transmission iron tower, and the other end of the distance adjusting device is connected with the lightning arrester body and used for adjusting the distance of an air gap between the power transmission line and the lower portion of the lightning arrester body.
Under the lightning impulse, except for the acceptable protection failure rate, the novel line arrester body should act in advance of the parallel insulator string, so that the protected insulator string is ensured not to generate lightning flashover. Therefore, the volt-second characteristic of the novel line arrester body is necessarily lower than that of the parallel insulator string, a larger matching margin is reserved, and the gap distance is selected to be smaller as far as possible.
Under the action of the operation overvoltage, the novel line arrester body does not act, and normal operation of the power transmission line is guaranteed. Therefore, the volt-second characteristic of the novel line arrester is higher than the maximum operation overvoltage of the power transmission line, a large matching margin is reserved, and the gap distance is selected to be larger as far as possible.
It can be seen that the two conditions have certain contradiction, so the selection of the gap distance needs to be considered comprehensively, the limit value of the air gap can be obtained by adopting electrical simulation software ATP-EMTP to carry out simulation calculation, the lightning arrester body is ensured to be started before the insulator flashover occurs, the lightning arrester body can bear the operation overvoltage on the power transmission line without being started by mistake, and the normal starting of the lightning arrester is not influenced.
The utility model discloses then through arrester environmental data monitoring devices such as infrared distance measuring device, air humidity transducer, air particulate matter sensor, monitor clearance distance when receiving the environmental impact at any time, whether the arrester device can normally work. Once the problem of the lightning arrester affected by the environment is found, the distance of the air gap is adjusted properly in time, and the safety of the power transmission line is ensured.
The utility model has the advantages that:
1. the utility model discloses a zinc oxide arrester series connection air gap can effectively reduce the arrester and frequently start, can prolong the life of arrester greatly.
2. The utility model discloses a roll adjustment device has the function of adjustable air gap distance, can adjust the air gap distance according to the transmission line of different grades and different atmospheric conditions.
3. The utility model has the advantages of it is automatic, intelligent, can record the air gap distance under the different atmospheric environment at the background for follow-up improvement.
4. The utility model has the advantages of extensive applicability, can standardize production, modularization equipment, the transmission line of different grades can tolerate different operation overvoltage values, can adjust air gap according to the operation overvoltage of difference.
Drawings
Fig. 1 is a schematic view of the working principle of the lightning arrester according to the embodiment of the present invention;
fig. 2 is a schematic view of the installation of the lightning arrester according to the embodiment of the present invention;
fig. 3 is a schematic view of the lightning arrester of the embodiment of the invention in site construction;
in the figure, 1-insulator, 2-lightning arrester body, 3-distance adjusting device, 4-air gap, 5-transmission line and 6-transmission iron tower.
Detailed Description
The present invention will be described in further detail by way of embodiments with reference to the accompanying drawings, which are illustrative of the present invention and are not limited to the following embodiments.
As shown in fig. 1, it is a schematic view of the working principle of the lightning arrester according to the embodiment of the present invention; as shown in fig. 2, it is a schematic view of the installation of the lightning arrester according to the embodiment of the present invention. A transmission line arrester device for adjusting air gap according to environmental data comprises an arrester body 2 connected with an insulator 1 in parallel, wherein the high-voltage end of the arrester body 2 is connected with a transmission line 5 through an air gap 4, and the low-voltage end of the arrester body 2 is connected with a transmission iron tower 6 through a distance adjusting device 3; the power transmission tower 6 is provided with a wireless transmitting and receiving device, an infrared distance measuring device, an air humidity sensor and an air particulate matter sensor, wherein the infrared distance measuring device, the air humidity sensor and the air particulate matter sensor are electrically connected with the wireless transmitting and receiving device and transmit measured data to a background data monitoring center for storage through the wireless transmitting and receiving device.
Furthermore, the distance adjusting device 3 is a telescopic pull rod, and a coil and a spring are mounted on the telescopic pull rod; as shown in FIG. 3, the lightning arrester of the embodiment of the present invention is a schematic view of the field construction of the lightning arrester. When the air gap is conducted in the presence of lightning or overvoltage, the coil is subjected to the action of magnetic field force to reduce the air gap; when the overcurrent is released, the coil is not acted by the magnetic field force any more, and the air gap is pulled up again under the action of the spring.
Under different atmospheric conditions, the air gap size is different. The utility model discloses a transmission line arrester device comes into operation the back, and atmospheric data when infrared distance measuring device, air humidity sensor, air particulate matter sensor record air clearance switch on can carry out artificial intelligence analysis, in time adjust air clearance based on data.
The embodiment of the utility model provides an in, infrared distance measuring device, air humidity transducer, air particulate matter sensor and wireless transmission and receiving arrangement, all can adopt the common product model in market to conventional fixed connection modes such as welding, bolt firmly install it on steel pylons suitable position can.
Claims (5)
1. The transmission line lightning arrester device for adjusting the air gap according to the environmental data comprises a lightning arrester body (2) connected with an insulator (1) in parallel, wherein a high-voltage end of the lightning arrester body (2) is connected with a transmission line (5) through an air gap (4), and a low-voltage end of the lightning arrester body (2) is connected to a transmission tower (6) through a distance adjusting device (3); the method is characterized in that:
and the power transmission iron tower (6) is provided with a wireless transmitting and receiving device and a lightning arrester environmental data monitoring device which are electrically connected with each other.
2. The transmission line arrester device according to claim 1, characterized in that the arrester environmental data monitoring device comprises: infrared range unit, air humidity sensor, air particulate matter sensor.
3. The arrester device according to claim 2, characterized in that the distance-adjusting device (3) is a telescopic pull rod.
4. The arrester device according to claim 3, wherein the telescopic rod is provided with a coil and a spring.
5. The arrester device according to claim 4, wherein the infrared distance measuring device, the air humidity sensor, the air particle sensor and the wireless transmitting and receiving device are fixedly mounted on the power transmission tower (6) at proper positions by welding or bolt fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920707015.XU CN210073517U (en) | 2019-05-16 | 2019-05-16 | Transmission line arrester device for adjusting air gap according to environmental data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920707015.XU CN210073517U (en) | 2019-05-16 | 2019-05-16 | Transmission line arrester device for adjusting air gap according to environmental data |
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| Publication Number | Publication Date |
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| CN210073517U true CN210073517U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920707015.XU Active CN210073517U (en) | 2019-05-16 | 2019-05-16 | Transmission line arrester device for adjusting air gap according to environmental data |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164638A (en) * | 2019-05-16 | 2019-08-23 | 山东电力设备有限公司 | The electric transmission line lightning arrester device of the air gap is adjusted according to environmental data |
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2019
- 2019-05-16 CN CN201920707015.XU patent/CN210073517U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164638A (en) * | 2019-05-16 | 2019-08-23 | 山东电力设备有限公司 | The electric transmission line lightning arrester device of the air gap is adjusted according to environmental data |
| CN110164638B (en) * | 2019-05-16 | 2024-02-23 | 山东电力设备有限公司 | Power transmission line lightning arrester device for adjusting air gap according to environmental data |
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Effective date of registration: 20220614 Address after: 250101 Shandong Electric Industry Park, Chunxuan Road, Feiyue Avenue, high tech Zone, Jinan City, Shandong Province Patentee after: Shandong electric transport inspection Engineering Co.,Ltd. Patentee after: Shandong Electric Group Co., Ltd Address before: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Patentee before: SHANDONG POWER EQUIPMENT Co.,Ltd. Patentee before: Shandong Electric Group Co., Ltd |