CN211929175U - Lightning arrester of electric power system - Google Patents
Lightning arrester of electric power system Download PDFInfo
- Publication number
- CN211929175U CN211929175U CN202020551150.2U CN202020551150U CN211929175U CN 211929175 U CN211929175 U CN 211929175U CN 202020551150 U CN202020551150 U CN 202020551150U CN 211929175 U CN211929175 U CN 211929175U
- Authority
- CN
- China
- Prior art keywords
- arrester
- power system
- electric power
- mounting flange
- silica gel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000741 silica gel Substances 0.000 claims abstract description 17
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 17
- 239000004593 Epoxy Substances 0.000 claims abstract description 15
- 239000003292 glue Substances 0.000 claims abstract description 9
- 238000012856 packing Methods 0.000 claims abstract description 6
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 230000006698 induction Effects 0.000 claims description 10
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- -1 rotating motors Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- Thermistors And Varistors (AREA)
Abstract
The utility model discloses an electric power system arrester relates to arrester technical field, for solving the most connection structure that adopts the formula of hanging the knot of the arrester earthing terminal among the prior art, this structure exposes when using long time and receives the oxidation erosion outside the metal part easily, and the junction does not have the safeguard measure moreover, has the problem of certain potential safety hazard. The bottom of arrester main part is provided with mounting flange down, and the top of arrester main part is provided with mounting flange, the top of going up mounting flange is provided with the wiring end, be provided with the cutting ferrule end on the wiring end, and the cutting ferrule end passes through the internal thread with the wiring end and rotates and be connected, the arrester main part includes silica gel umbrella skirt cover, and silica gel umbrella skirt cover and lower mounting flange and last mounting flange built-up connection, the inside of silica gel umbrella skirt cover is provided with the epoxy sleeve pipe, the inside of epoxy sleeve pipe is provided with the packing glue film, and the epoxy sleeve pipe is connected with packing glue film and the laminating of silica gel umbrella skirt.
Description
Technical Field
The utility model relates to an arrester technical field specifically is an electric power system arrester.
Background
The arrester is used for protecting the electric equipment from high transient overvoltage and limiting follow current time and also for normally limiting follow current amplitude. The lightning arrester is suitable for overvoltage protection of transformers, transmission lines, distribution panels, switch cabinets, power metering boxes, vacuum switches, parallel compensation capacitors, rotating motors, semiconductor devices and the like, and is divided into a plurality of types, namely, a metal oxide lightning arrester, a line type metal oxide lightning arrester, a gapless line type metal oxide lightning arrester, a fully-insulated composite sheathed metal oxide lightning arrester, a detachable lightning arrester, wherein the main types of the lightning arrester comprise a tubular lightning arrester, a valve type lightning arrester, a zinc oxide lightning arrester and the like. The main operating principle of each type of arrester is different, but their operation is substantially the same, all in order to protect the communication cables and the communication equipment from damage.
However, most of the existing ground terminals of the lightning arrester adopt a hanging buckle type connecting structure, the metal part exposed outside the structure is easily subjected to oxidation corrosion during long-time use, and the connecting part has no protective measures, so that certain potential safety hazards exist; thus, the existing requirements are not met, and a lightning arrester for an electric power system is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric power system arrester to solve the connection structure of hanging the knot formula mostly adopted by the arrester earthing terminal that proposes in the above-mentioned background art, this structure exposes when using and receives the oxidation erosion easily at the outer metal part, and the junction does not have the safeguard measure moreover, has the problem of certain potential safety hazard.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electric power system arrester, includes the arrester main part, the bottom of arrester main part is provided with down mounting flange, and the top of arrester main part is provided with mounting flange, the top of going up mounting flange is provided with the wiring end, be provided with the cutting ferrule end on the wiring end, and the cutting ferrule end passes through the internal thread rotation with the wiring end and is connected.
Preferably, the arrester main part includes silica gel umbrella skirt cover, and silica gel umbrella skirt cover and lower mounting flange and last mounting flange built-up connection.
Preferably, the inside of silica gel umbrella skirt cover is provided with the epoxy sleeve pipe, the inside of epoxy sleeve pipe is provided with the packing glue film, and the epoxy sleeve pipe is connected with packing glue film and the laminating of silica gel umbrella skirt.
Preferably, the inside of packing the glue film is provided with the valve block, and the valve block has a plurality ofly, the below of valve block is provided with the bottom electrode, and bottom electrode and lower mounting flange built-up connection.
Preferably, a mica washer is arranged above the valve plate, a spring is arranged above the mica washer, and an upper electrode is arranged above the spring.
Preferably, a spark gap is arranged between the spring and the upper electrode, and the upper electrode is arranged above the spark gap and electrically connected with the end of the ferrule.
Preferably, the top of cutting ferrule end is provided with the ground connection cable, the inside of cutting ferrule end is provided with the insulating rubber circle, and insulating rubber circle and cutting ferrule end built-up connection, the inboard of insulating rubber circle is provided with the conducting block, and conducting block and ground connection cable electric connection, the conducting block passes through the induction tank with the wiring end and is connected.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a set of wiring end and cutting ferrule end above the arrester, and use female connection between the wiring end of cutting ferrule end, connect the lower mounting flange of arrester bottom on corresponding electric power system structure when using, then connect one end of ground cable on the conducting block inside the cutting ferrule end, and the other end of ground cable is connected with the earthing terminal, then turn over the cutting ferrule end to the wiring end above the upper mounting flange, after the cutting ferrule end is turned over to the wiring end, inside conducting block will imbed in the induction tank inside the wiring end, and the induction tank of wiring end bottom is connected on the upper electrode through the metal conducting element and can realize the conduction of electric current, and whole connection structure all wraps up in the cutting ferrule end, can not expose in the air, the cutting ferrule end still adopts insulating material to make simultaneously, can not only promote the life of part, meanwhile, the phenomenon of electric leakage can be avoided.
Drawings
FIG. 1 is an overall front view of the present invention;
FIG. 2 is a schematic view of the overall internal structure of the present invention;
fig. 3 is the schematic diagram of the structure of the ferrule end of the present invention.
In the figure: 1. a lightning arrester main body; 2. a lower fixed flange; 3. an upper fixing flange; 4. the end of the cutting sleeve; 5. a terminal; 6. a lower electrode; 7. an upper electrode; 8. a silica gel umbrella skirt cover; 9. an epoxy sleeve; 10. filling the adhesive layer; 11. a valve plate; 12. a mica washer; 13. a spring; 14. a spark gap; 15. a ground cable; 16. an induction tank; 17. a conductive block; 18. and an insulating rubber ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides an electric power system arrester, including arrester main part 1, the bottom of arrester main part 1 is provided with mounting flange 2 down, connect the arrester at corresponding electric power system structurally through mounting flange 2 down, thereby play the effect of current protection, and the top of arrester main part 1 is provided with mounting flange 3, upper and lower two sets of flanges carry out the sealing at both ends to whole arrester, guarantee internal partial leakproofness, the top of going up mounting flange 3 is provided with wiring end 5, be provided with cutting ferrule end 4 on wiring end 5, cutting ferrule end 4 adopts insulating material to make, can play certain guard action, and cutting ferrule end 4 is connected through female screw rotation with wiring end 5, be convenient for install and dismantle.
Further, arrester main part 1 includes silica gel umbrella skirt cover 8, as the protective sheath of arrester outside, not only can play insulating protection's effect, can also prevent that the arrester from appearing damaging because of the striking, and silica gel umbrella skirt cover 8 and lower mounting flange 2 and last mounting flange 3 built-up connection, reinforcing stability.
Further, the inside of silica gel umbrella skirt cover 8 is provided with epoxy sleeve 9, and the epoxy pipe is processed with epoxy by electrician's alkali-free glass fiber cloth soaks, has high mechanical properties and air guide performance, and the inside of epoxy sleeve 9 is provided with the filling glue film 10, plays the effect of cutting off the protection, and epoxy sleeve 9 is connected with the laminating of filling glue film 10 and silica gel umbrella skirt.
Furthermore, the valve plates 11 are arranged inside the glue filling layer 10, the valve plates 11 are multiple, the lower electrodes 6 are arranged below the valve plates 11, the lower electrodes 6 are connected with the lower fixing flange 2 in a combined mode, the resistance of the valve plates 11 can change in a large range along with the difference of passing current, when the valve plates bear power frequency voltage, the valve plates are high-resistance valves which are similar to closed valves, so that the power frequency current is difficult to pass, and when the valve plates are impacted by high-frequency voltage, the valve plates are changed into low-value resistance valves which are similar to open valves, so that the impact current can pass easily; after the lightning current passes, the power frequency current makes the valve type resistance card present very high resistance again, and similar valve is closed, and spark gap 14 blocks the current rapidly at this moment.
Further, a mica washer 12 is disposed above the valve plate 11, a spring 13 is disposed above the mica washer 12, and the upper electrode 7 is disposed above the spring 13.
Further, a spark gap 14 is arranged between the spring 13 and the upper electrode 7, the upper electrode 7 is arranged above the spark gap 14 and is electrically connected with the ferrule end 4, the spark gap 14 can be punctured and discharged when overvoltage occurs, and the spark gap plays a role in mutually isolating a power supply and the valve type resistor under the power frequency voltage of normal operation.
Furthermore, a grounding cable 15 is arranged above the ferrule end 4, one end of the cable is connected with a conductive block 17, the other end of the cable is connected with a grounding end, an insulating rubber ring 18 is arranged inside the ferrule end 4, the insulating rubber ring 18 is connected with the ferrule end 4 in a combined manner, the conductive block 17 is arranged on the inner side of the insulating rubber ring 18, the conductive block 17 is electrically connected with the grounding cable 15, the conductive block 17 is connected with the wiring terminal 5 through an induction groove 16, the bottom of the induction groove 16 is connected with the upper electrode 7 through a metal conductive element, when the ferrule end 4 is rotated to the wiring terminal 5, the inner conductive block 17 can be embedded into the induction groove 16 inside the wiring terminal 5, and then current conduction can be realized, and the whole connecting structure is wrapped inside the ferrule end 4 and cannot be exposed in the air.
The working principle is as follows: when the lightning arrester is used, the lightning arrester is connected to a corresponding power system structure through the lower fixing flange 2, then one end of the grounding cable 15 is connected to the conducting block 17 inside the sleeve head 4, the other end of the grounding cable 15 is connected with the grounding end, then the sleeve head 4 is rotated to the wiring terminal 5 above the upper fixing flange 3, after the sleeve head 4 is rotated to the wiring terminal 5, the internal conducting block 17 is embedded into the induction groove 16 inside the wiring terminal 5, the induction groove 16 at the bottom of the wiring terminal 5 is connected to the upper electrode 7 through the metal conducting element so as to realize current conduction, the whole connecting structure is wrapped inside the sleeve head 4 and cannot be exposed in the air, the service life of the lightning arrester is prolonged, when the lightning arrester is impacted by high-frequency voltage, the resistance of the valve plate 11 is reduced, and then the impact current can pass easily, after the lightning current passes, the power frequency current makes the valve type resistance sheet present high resistance again, the resistance of the valve sheet 11 will increase, and the spark gap 14 blocks the current rapidly at this moment.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. An electric power system arrester, includes arrester main part (1), its characterized in that: the lightning arrester is characterized in that a lower fixing flange (2) is arranged at the bottom of the lightning arrester body (1), an upper fixing flange (3) is arranged at the top of the lightning arrester body (1), a wiring end (5) is arranged above the upper fixing flange (3), a clamping sleeve end (4) is arranged on the wiring end (5), and the clamping sleeve end (4) is rotatably connected with the wiring end (5) through internal threads.
2. An arrester for an electric power system according to claim 1, characterized in that: arrester main part (1) includes silica gel umbrella skirt cover (8), and silica gel umbrella skirt cover (8) and mounting flange (2) and last mounting flange (3) built-up connection down.
3. An arrester for an electric power system according to claim 2, characterized in that: the inside of silica gel umbrella skirt cover (8) is provided with epoxy sleeve pipe (9), the inside of epoxy sleeve pipe (9) is provided with filling adhesive layer (10), and epoxy sleeve pipe (9) are connected with the laminating of filling adhesive layer (10) and silica gel umbrella skirt.
4. An arrester for an electric power system according to claim 3, characterized in that: the inside of packing glue film (10) is provided with valve block (11), and valve block (11) have a plurality ofly, the below of valve block (11) is provided with bottom electrode (6), and bottom electrode (6) and lower mounting flange (2) built-up connection.
5. An arrester for an electric power system according to claim 4, characterized in that: the mica washer (12) is arranged above the valve plate (11), the spring (13) is arranged above the mica washer (12), and the upper electrode (7) is arranged above the spring (13).
6. An arrester for an electric power system according to claim 5, characterized in that: a spark gap (14) is arranged between the spring (13) and the upper electrode (7), and the upper electrode (7) is arranged above the spark gap (14) and is electrically connected with the clamping sleeve end (4).
7. An arrester for an electric power system according to claim 1, characterized in that: the top of cutting ferrule end (4) is provided with ground connection cable (15), the inside of cutting ferrule end (4) is provided with insulating rubber ring (18), and insulating rubber ring (18) and cutting ferrule end (4) built-up connection, the inboard of insulating rubber ring (18) is provided with conducting block (17), and conducting block (17) and ground connection cable (15) electric connection, conducting block (17) are connected through induction tank (16) with wiring end (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020551150.2U CN211929175U (en) | 2020-04-15 | 2020-04-15 | Lightning arrester of electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020551150.2U CN211929175U (en) | 2020-04-15 | 2020-04-15 | Lightning arrester of electric power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211929175U true CN211929175U (en) | 2020-11-13 |
Family
ID=73375822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020551150.2U Expired - Fee Related CN211929175U (en) | 2020-04-15 | 2020-04-15 | Lightning arrester of electric power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211929175U (en) |
-
2020
- 2020-04-15 CN CN202020551150.2U patent/CN211929175U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201113 |