CN210805359U - Insulator supporting type lightning arrester suitable for distribution network platform area - Google Patents
Insulator supporting type lightning arrester suitable for distribution network platform area Download PDFInfo
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- CN210805359U CN210805359U CN201922148272.7U CN201922148272U CN210805359U CN 210805359 U CN210805359 U CN 210805359U CN 201922148272 U CN201922148272 U CN 201922148272U CN 210805359 U CN210805359 U CN 210805359U
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Abstract
The utility model discloses an insulator supports formula lightning arrester suitable for join in marriage net platform district, include: the insulator porcelain bushing is supported on a telegraph pole in the distribution network area; the core rod is arranged inside the insulator porcelain sleeve, and the first end of the core rod is connected with the grounding grid; and the lightning arrester lead penetrates through the insulator porcelain bushing, the first end of the lightning arrester lead is connected with the second end of the core rod, and the second end of the lightning arrester lead is electrically connected with a distribution network distribution area phase line. This utility model provides a high-voltage arrester's arrester lead wire overlength, cause the arrester fragile, and the unsatisfactory and poor problem of security of lightning-arrest effect, through set up lightning arrester inside the insulator that joins in marriage net platform district top and support, reduce the length of arrester lead wire, realized simple to operate, construction cost are low, have promoted lightning protection's effect, have guaranteed lightning arrester's safety and pleasing to the eye.
Description
Technical Field
The utility model relates to a high-voltage lightning-protection technical field, concretely relates to insulator supports formula lightning arrester suitable for join in marriage net platform district.
Background
At present, the length of a high-voltage arrester lead 1 is more than 1.5 meters, as shown in fig. 1, after an arrester 2 in operation acts, lightning current enters the ground through the upper and lower arrester leads 1 of the arrester 2, the inductance of the 1 meter (m) arrester lead 1 is close to 1 microh (μ H), under the condition of medium lightning, the voltage drop on the arrester lead 1 reaches several 10 Kilovolts (KV), and the residual voltage of the arrester 2 is added, so that the arrester 2 is easily damaged or the transformer insulation is broken down, and the lightning protection effect is not ideal.
Meanwhile, the distribution network area 3 is generally erected outdoors, the temperature drop is large day and night, the lightning arrester lead 1 and the wiring terminal of the lightning arrester 2 bear large tension due to thermal expansion and cold contraction, and the lightning arrester lead 1 shakes after being blown by strong wind, so that the lightning arrester lead 1 is long in time and easy to separate from the lightning arrester 2 body, the lightning arrester lead 1 as long as 1.5 meters collides with other charged equipment in the distribution network area 3, and interphase short circuit occurs to form a fault point, and the safety is not high.
And, the arrester 2 is installed complicatedly, can cause and join in marriage net platform district 3 wiring succinctly pleasing to the eye inadequately.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an insulator supports formula lightning arrester suitable for join in marriage net platform district. This system aims at solving the arrester lead wire overlength of high voltage arrester, causes the arrester fragile, and the unsatisfactory and poor problem of security of lightning-arrest effect, through set up lightning arrester inside the insulator that joins in marriage net platform district top and support, reduces the length of arrester lead wire, realizes simple to operate, construction cost is low, promotes lightning protection's effect, guarantees lightning arrester's safety and pleasing to the eye.
In order to achieve the above object, the utility model provides an insulator supports formula lightning arrester suitable for join in marriage net platform district, include:
the insulator porcelain bushing is supported on a telegraph pole in the distribution network area;
the core rod is arranged inside the insulator porcelain sleeve, and the first end of the core rod is connected with the grounding grid;
the lightning arrester lead penetrates through the insulator porcelain bushing, the first end of the lightning arrester lead is connected with the second end of the core rod, and the second end of the lightning arrester lead is electrically connected with a distribution network distribution area phase line;
when a lightning stroke occurs, the high voltage of the lightning wave is transmitted to the second end of the core rod through the transformer area phase line and the lightning arrester lead wire through electrical connection, then flows through the core rod and flows into the grounding grid through the first end of the core rod, so that the lightning wave flows into the ground, the second end of the core rod is the high-voltage side of the core rod, the first end of the core rod is the low-voltage side of the core rod, so that the low-voltage side of the core rod and the ground form an equipotential, the high voltage on the transformer area phase line is controlled within a safety range, and the safety of a distribution network transformer area is protected.
Most preferably, the second end of the core rod is also provided with a core rod upper electrode; the upper electrode of the core rod is connected with the first end of the lightning arrester lead, the second end of the lightning arrester lead is electrically connected with the transformer area phase line, and when lightning strike occurs, the transformer area phase line transmits the high voltage of the invading lightning wave to the upper electrode of the core rod.
Most preferably, the first end of the core rod is also provided with a core rod lower electrode; the lower electrode of the core rod is connected with the grounding grid, high current of the invading lightning waves flows through the core rod, and the high current of the lightning waves flows into the grounding grid through the lower electrode of the core rod, so that the high current flows into the ground, and the low-voltage side of the core rod is ensured to form equal potential with the ground.
Most preferably, one end of the insulator porcelain sleeve is also provided with an insulator steel cap; the two ends of the insulator steel cap are respectively connected with the lower electrode of the core rod and the grounding grid, and the lower electrode of the core rod transmits the high current of the lightning wave to the grounding grid through the insulator steel cap so as to flow into the ground.
Most preferably, the lightning arrester lead is electrically connected to the district phase line by a wire clamp.
Most preferably, the wire clamp can be electrically connected with the district phase wire in a puncturing mode.
Most preferably, the wire clamp can be electrically connected to the field phase wire in a non-piercing manner.
Most preferably, the lightning arrester is suitable for 10KV distribution network areas.
The application of the utility model discloses, the arrester lead wire overlength of having solved high-voltage arrester causes the arrester fragile, and the unsatisfactory and poor problem of security of lightning-arrest effect, through set up lightning arrester inside the insulator that joins in marriage net platform district top and support, reduces the length of arrester lead wire, has realized simple to operate, construction cost is low, has promoted lightning protection's effect, has guaranteed lightning arrester's safety and pleasing to the eye.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model provides a "two unification" lightning arrester with insulator support function and arrester function shortens the installation lead wire of the arrester of joining in marriage net platform district, reduces the pressure drop that produces when lightning arrester lead wire is flowed through to the lightning current, improves lightning arrester protective equipment's reliability, extension lightning arrester's life.
2. The utility model provides an insulator supports formula lightning arrester is at the single three support insulator and six wire puncture points of two reducible angle bar cross arms, plumb line in the installation of joining in marriage net platform district (three-phase), and the installation is convenient so, has saved construction consuming time and construction cost, has promoted lightning protection reliability and operational safety, has effectively promoted the lightning protection effect of joining in marriage net platform district equipment, makes the circuit more succinct pleasing to the eye.
Drawings
Fig. 1 is a schematic view of a conventional lightning arrester installed in a distribution network area;
fig. 2 is a schematic structural view of the insulator-supported lightning arrester according to the present invention;
fig. 3 is the utility model provides an insulator supports formula lightning arrester and installs the schematic diagram in joining in marriage net platform district.
Detailed Description
The present invention will be further described with reference to the following embodiments, which are only used for illustrating the present invention and are not intended to limit the scope of the present invention.
The utility model relates to an insulator 4 support formula lightning arrester suitable for distribution network platform district 3, as shown in fig. 2 and fig. 3, the lightning arrester includes insulator porcelain bushing 11, plug 5 and arrester lead wire 6; wherein, the insulator porcelain bushing 11 is supported on the telegraph pole of the distribution network area 3; the core rod 5 is arranged in the porcelain bushing 11 of the insulator 4, and the first end of the core rod is connected with the grounding grid; the lightning arrester lead 6 penetrates through the insulator 4 porcelain bushing 11, the first end of the lightning arrester lead is connected with the second end of the core rod 5, and the second end of the lightning arrester lead is electrically connected with a distribution area phase line 8 of the distribution network area 3.
The insulator porcelain bushing 11 and the core rod 5 are integrally formed, so that the working environment of the lightning arrester is better than that of an ordinary outdoor lightning arrester 2, and the service life of the lightning arrester is longer.
When lightning strike occurs, the high voltage of the lightning wave is electrically connected with the lightning arrester lead 6 through the distribution area phase line 8 to transmit the high voltage of the lightning wave to the second end of the core rod 5, then the high voltage flows through the core rod 5 and flows into the grounding grid through the first end 9 of the core rod 5 so as to flow into the ground, the second end of the core rod 5 is the high-voltage side of the core rod 5, the first end of the core rod 5 is the low-voltage side of the core rod 5, therefore, the low-voltage side of the core rod 5 of the lightning arrester is guaranteed to be equipotential with the ground, the high voltage on the distribution area phase line 8 is controlled within a safety range, and the safety of.
The second end of the core rod 5 is also provided with a core rod upper electrode 10; the upper core rod electrode 10 is connected with a first end of the lightning arrester lead 6, a second end of the lightning arrester lead 6 is electrically connected with the transformer area phase line 8, and when lightning strike occurs, the transformer area phase line 8 transmits high voltage of the invading lightning wave to the upper core rod electrode 10.
The first end of the core rod 5 is also provided with a core rod lower electrode 9; the core rod lower electrode 9 is connected with the grounding grid, high current of the invading lightning wave flows through the core rod 5, and the high current of the lightning wave flows into the grounding grid through the core rod lower electrode 9, so that the high current flows into the ground, and the low-voltage side of the core rod 5 of the lightning arrester is ensured to form equal potential with the ground.
An insulator steel cap 7 is also arranged at one end of the insulator porcelain bushing 11; the two ends of the insulator steel cap 7 are respectively connected with the core rod lower electrode 9 and the grounding grid, and the core rod lower electrode 9 transmits the high current of the lightning wave to the grounding grid through the insulator steel cap 7, so that the high current flows into the ground.
The lightning arrester lead 6 is electrically connected with a transformer area phase line 8 through a wire clamp; the wire clamp can be electrically connected with a phase line 8 of the transformer area in a puncturing mode; the lightning arrester lead 6 can also be electrically connected with the platform area phase line 8 in a non-puncture mode; the wire clamps adopted by the connection modes of puncture and non-puncture are respectively a puncture wire clamp and a non-puncture wire clamp.
Compared with a non-puncture connection mode, the puncture connection mode does not need to be peeled, the installation workload of the lightning arrester is reduced, the original insulating layer of the lightning arrester lead wire 6 cannot be damaged, the full insulation of the lightning arrester is guaranteed, and the technical development direction of the insulated distribution network area 3 is met.
The lightning arrester is suitable for a 10KV distribution network area 3.
The utility model discloses a theory of operation:
this lightning arrester includes: the insulator porcelain bushing is supported on a telegraph pole in the distribution network area; the core rod is arranged inside the porcelain bushing of the insulator, and the first end of the core rod is connected with the insulator steel cap and the grounding grid through the insulator steel cap; the lightning arrester lead penetrates through the insulator porcelain bushing, the first end of the lightning arrester lead is connected with the second end of the core rod, and the second end of the lightning arrester lead is electrically connected with a distribution network distribution area phase line; when lightning strike occurs, the high voltage of the lightning wave is electrically connected with a lightning arrester lead through a transformer area phase line to transmit the high voltage of the lightning wave to an upper electrode of a core rod of the core rod, then flows through the core rod, flows into a grounding net through a lower electrode of the core rod and an insulator steel cap of the core rod, and then flows into the ground, so that the low-voltage side of the core rod of the lightning arrester is ensured to form equipotential with the ground, the high voltage on the transformer area phase line is controlled within a safety range, and the safety of a distribution network transformer area is protected.
To sum up, the utility model relates to an insulator supports formula lightning arrester suitable for join in marriage net platform district has solved the arrester lead wire overlength of high-pressure arrester, causes the arrester fragile, and the unsatisfactory and poor problem of security of lightning-arrest effect, through set up lightning arrester inside the insulator that joins in marriage net platform district top and support, reduces the length of arrester lead wire, has realized simple to operate, construction cost is low, has promoted lightning protection's effect, has guaranteed lightning arrester's safety and pleasing to the eye.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (8)
1. The utility model provides an insulator supports formula lightning arrester suitable for join in marriage net platform district which characterized in that includes:
the insulator porcelain bushing is supported on a telegraph pole in the distribution network area;
the core rod is arranged inside the insulator porcelain sleeve, and the first end of the core rod is connected with the grounding grid;
the lightning arrester lead penetrates through the insulator porcelain bushing, the first end of the lightning arrester lead is connected with the second end of the core rod, and the second end of the lightning arrester lead is electrically connected with a distribution area phase line of a distribution network area;
when the thunderbolt takes place, the high voltage of lightning wave pass through platform district phase line with lightning arrester lead wire electrical connection with the high voltage transmission of lightning wave extremely the second end of plug flows through then the plug, through the first end inflow ground net of plug to flow into the ground, the second end of plug is the high pressure side of plug, first end is the low pressure side of plug, thereby guarantees the low pressure side of plug forms the equipotential with the ground, makes the high voltage control on the platform district phase line in safety range, thereby the safety of distribution network platform district is joined in marriage in the protection.
2. The insulator-supported lightning protection device suitable for distribution network areas according to claim 1, wherein the second end of the core rod is further provided with an upper electrode of the core rod; the core rod upper electrode is connected with the first end of the lightning arrester lead, the second end of the lightning arrester lead is electrically connected with the transformer area phase line, and when lightning strike occurs, the transformer area phase line transmits the high voltage of the invading lightning wave to the core rod upper electrode.
3. The insulator-supported lightning protection device suitable for distribution network areas according to claim 1, wherein the first end of the core rod is further provided with a core rod lower electrode; the lower electrode of the core rod is connected with a grounding grid, high current of the invading lightning wave flows through the core rod, and the high current of the lightning wave flows into the grounding grid through the lower electrode of the core rod, so that the high current flows into the ground, and the low-voltage side of the core rod is ensured to form equal potential with the ground.
4. The insulator-supported lightning protection device suitable for distribution network areas according to claim 3, wherein an insulator steel cap is further provided at one end of the insulator porcelain bushing; and the two ends of the insulator steel cap are respectively connected with the lower electrode of the core rod and the grounding grid, and the lower electrode of the core rod transmits the high current of the lightning wave to the grounding grid through the insulator steel cap so as to flow into the ground.
5. The insulator-supported lightning protection device according to claim 1, wherein the lightning arrester lead is electrically connected to the distribution area phase line by a wire clamp.
6. The insulator-supported lightning protection device according to claim 5, wherein the wire clamp is adapted to be electrically connected to a distribution area phase line by means of a puncture.
7. The insulator supported lightning protection device according to claim 5, wherein the wire clamp is adapted to be electrically connected to a distribution network area phase line in a non-penetrating manner.
8. The insulator-supported lightning protection device for distribution network areas according to claim 1, wherein the lightning protection device is suitable for 10KV distribution network areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922148272.7U CN210805359U (en) | 2019-12-04 | 2019-12-04 | Insulator supporting type lightning arrester suitable for distribution network platform area |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922148272.7U CN210805359U (en) | 2019-12-04 | 2019-12-04 | Insulator supporting type lightning arrester suitable for distribution network platform area |
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| CN210805359U true CN210805359U (en) | 2020-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767394A (en) * | 2019-12-04 | 2020-02-07 | 国网上海市电力公司 | Insulator supporting type lightning arrester suitable for distribution network platform area |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767394A (en) * | 2019-12-04 | 2020-02-07 | 国网上海市电力公司 | Insulator supporting type lightning arrester suitable for distribution network platform area |
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