CN205282878U

CN205282878U - Line gap

Info

Publication number: CN205282878U
Application number: CN201620009270.3U
Authority: CN
Inventors: 庄严; 杨志一
Original assignee: BEIJING QIANYUAN WIND POWER TECHNOLOGY Co Ltd
Current assignee: BEIJING QIANYUAN WIND POWER TECHNOLOGY Co Ltd
Priority date: 2016-01-05
Filing date: 2016-01-05
Publication date: 2016-06-01
Anticipated expiration: 2026-01-05

Abstract

The utility model relates to an electric power facility technical field, through providing the line gap including discharge main part, insulator and auxiliary electrode, the main part of wherein discharging includes metal electrode and basement. This line gap can adapt to the circuit of different electric pressures, and effective single electric pressure problem of solving current line gap is compared simultaneously and can be appeared the degraded phenomenon easily because lightning -arrest action time is too much, the easy problem of decreasing and taking place the flashover in current metal oxide lightning arrester. In addition, this line gap can block power frequency continuous current owing to there are a plurality of equidistant ground of metal electrode fixed array to form a plurality of discharge gap effectively.

Description

A kind of leakage conductor

Technical field

This utility model relates to electrical facility technical field, particularly relates to a kind of leakage conductor.

Background technology

The effect of spark gap be used to protection power system in various electric equipments from the fault caused because of thunderbolt; leakage conductor is to limit circuit lightning surge; improve the lightning-arrest level of circuit; it is to reduce the trip-out rate that system causes because of lightning fault, and custom-designed a kind of suspension is installed on the Novel lightning arrester on transmission tower. The kind of leakage conductor is a lot, and wherein oxidation zinc-type is most commonly seen, and application also ratio is wide. But this spark gap in the market has single electric pressure, the problem of rapid wear and generation flashover, namely can be only installed in its corresponding electric pressure power system, additionally, lightning-arrest action frequency is too much, it is easy to occur aging, thus have impact on the service life of spark gap.

Utility model content

The purpose of this utility model is in that to provide a kind of leakage conductor, it is intended to solve the single electric pressure of existing leakage conductor and the how easy problem of aging of action frequency.

First aspect, a kind of leakage conductor, including electric discharge main body, insulator and auxiliary electrode, described electric discharge main body includes metal electrode and substrate, described metal electrode stationary arrangement equally spacedly on the substrate, equidistantly forms the first discharging gap between described metal electrode;

Described electric discharge main body is wrapped on described insulator, and the upper and lower both ends of described insulator are provided with auxiliary electrode, and described auxiliary electrode is used for connecting high-tension line and ground connection;

One end of the described auxiliary electrode for connecting high-tension line and described electric discharge main body constitutes the second discharging gap or is directly connected to; The described auxiliary electrode for ground connection and the described electric discharge main body other end are directly connected to, or form the 3rd discharging gap with the described electric discharge main body other end.

Further, described and electric discharge main body composition discharging gap auxiliary electrode is rotatably provided in described insulator end.

Further, described metal electrode is convex, and the quantity of described metal electrode is at least two.

Further, described convex shape includes: hemispherical or trapezoidal shape.

Further, the quantity of the first corresponding discharging gap is at least one, and the gap width of described first discharging gap is preset value.

Further, described insulator is full skirt shape or spiral full skirt shape.

Further, described electric discharge main body is wrapped in described umbrella petticoat insulator edge or is spirally wound on described spiral umbrella petticoat insulator edge.

Further, described leakage conductor also includes a fixing device, and described fixing device is for being fixed on steel tower by described leakage conductor.

Beneficial effect: compared with existing leakage conductor, this utility model provides a kind of leakage conductor including electric discharge main body, insulator and auxiliary electrode, and wherein electric discharge main body includes metal electrode and substrate. This leakage conductor is adapted to the circuit of different electric pressures, effectively solve the single Research on Voltage Class of existing leakage conductor, rapid wear and the problem that flashover occurs, simultaneously can because lightning-arrest action frequency be too much compared to existing metal oxide arrester, it is easy to catabiosis occurs and the common spelling problem with grounding that electric leakage causes occurs. It addition, this leakage conductor forms multiple first discharging gap with multiple metal electrodes stationary arrangement equally spacedly, it is possible to effectively block power frequency continued flow.

Accompanying drawing explanation

Fig. 1 is the structural representation of the leakage conductor that this utility model one embodiment provides;

Fig. 2 is the structural representation of the electric discharge main body that this utility model one embodiment provides;

Fig. 3 is the structural representation of the leakage conductor that this utility model one embodiment provides;

Fig. 4 is that the leakage conductor that this utility model one embodiment provides uses structural representation.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.

Embodiment one

Fig. 1 illustrates the structure of the leakage conductor that this utility model provides, and leakage conductor includes electric discharge main body 10, insulator 11 and is located at the auxiliary electrode at the upper and lower both ends of insulator, i.e. auxiliary electrode 12 and auxiliary electrode 13. Electric discharge main body 10 is wrapped on described insulator 11, and auxiliary electrode is used for connecting high-tension line and ground connection.

As in figure 2 it is shown, wherein electric discharge main body 10 includes metal electrode 101 and substrate 102, the material of metal electrode 101 includes the conductive material such as ferrum, copper and aluminum; Substrate 102 adopts high temperature resistant and insulation soft material. Metal electrode 101 stationary arrangement equally spacedly is in substrate 102, and equidistantly formation the first discharging gap 103 between metal electrode, multiple metal electrodes 101 will form multiple first discharging gap 103, and multiple discharging gaps can block power frequency continued flow effectively. Such as, having 16 metal electrodes in Fig. 2, will constitute 15 the first discharging gaps 103, these 15 discharging gaps are just enough to effectively block power frequency continued flow. Electric discharge main body 10 length does not limit, and determines according to different electric pressures.

The gap width of the first discharging gap 103 is preset value, and the number of metal electrode is determined, the number at least two of metal electrode 101 according to electric discharge main body 10 length and preset value. The face shaping of metal electrode 101 is convex shape, including hemispherical or trapezoidal shape etc. Preferably hemispherical, but it is not limited to this shape, similar shape.

One end of auxiliary electrode 12 and electric discharge main body 10 constitutes the second discharging gap 120; Auxiliary electrode 13 and electric discharge main body 10 other end are directly connected to (being not drawn in FIG, be namely that auxiliary electrode 13 is connected) with the metal electrode of electric discharge main body 10 other end, or form the 3rd discharging gap 130 with electric discharge main body 10 other end. The gap width of the second discharging gap 120 and the 3rd discharging gap 130 can adjust, and determines according to different electric pressures.

If the metal electrode 101 of auxiliary electrode 13 and electric discharge main body 10 other end is directly connected to, then auxiliary electrode 13 is rotatably provided in the end of insulator 11, and such benefit is to change effective discharge length of electric discharge main body 10. From the principle of spark gap, if auxiliary electrode 13 is to connect high-tension line, auxiliary electrode 12 ground connection, when there being thunderbolt, over-voltage breakdown discharging gap forms dredging collateral, and overcurrent is transmitted to the earth through auxiliary electrode the 13, the 3rd discharging gap 130, electric discharge main body the 10, second discharging gap 120 and auxiliary electrode 12. Wherein auxiliary electrode 12 can rotate, thus changing effective discharge length of electric discharge main body 10, the change of effective discharge length of electric discharge main body 10 can be suitable for different brackets voltage.

Embodiment two

Fig. 3 illustrates the structure of the leakage conductor that this utility model provides, with embodiment one the difference is that: be in that electric discharge main body 20 be spirally wound on umbrella petticoat insulator edge, such benefit is the increase in the length of electric discharge main body 20, it is possible to adapt to different electric pressure.

Additionally, the different existing metal oxide arrester of leakage conductor structure, the oxide resistor of metal oxide arrester can because lightning-arrest action frequency be too much, it is easy to catabiosis occur, and resistance is as aging and change. And the employing of this leakage conductor is metal material, because its life-span can be more permanent.

Embodiment three

The leakage conductor that Fig. 4 is the present embodiment uses scene structure figure, and as shown in Figure 4, leakage conductor 31 is fixed on steel tower 34 by the fixing device 311 above it and ground connection. Leakage conductor 31 can be the leakage conductor structure in embodiment one or embodiment two, but also includes the discharging gap that auxiliary electrode 361 and 362 is formed in the present embodiment, supports by insulator 32 is fixing, it is also possible to support with other insulating bodies are fixing. The other end of auxiliary electrode 362 is connected on high-tension line 35, and high line circuit 35 is fixed on steel tower 34 above by insulator 33, and this uses the extension that structure is the leakage conductor of examples detailed above, many again discharging gaps in the process used.

In sum, can be seen that this leakage conductor is adapted to the circuit of different electric pressures, effectively solve the single Research on Voltage Class of existing leakage conductor, simultaneously can because lightning-arrest action frequency be too much compared to existing metal oxide arrester, catabiosis, rapid wear and the problem that flashover occurs easily occur. It addition, this leakage conductor forms multiple first discharging gap with multiple metal electrodes stationary arrangement equally spacedly, it is possible to effectively block power frequency continued flow.

It will be apparent to those skilled in the art that can technical scheme as described above and design, make other various corresponding changes and deformation, and all these change and deformation all should belong within this utility model scope of the claims.

Claims

1. a leakage conductor, including electric discharge main body, insulator and auxiliary electrode, it is characterised in that described electric discharge main body includes metal electrode and substrate, described metal electrode stationary arrangement equally spacedly on the substrate, equidistantly forms the first discharging gap between described metal electrode;

2. leakage conductor according to claim 1, it is characterised in that described and electric discharge main body constitutes the auxiliary electrode of discharging gap and is rotatably provided in described insulator end.

3. leakage conductor according to claim 1 or claim 2, it is characterised in that described metal electrode is convex, the quantity of described metal electrode is at least two.

4. leakage conductor according to claim 3, it is characterised in that described convex shape includes: hemispherical or trapezoidal shape.

5. leakage conductor according to claim 3, it is characterised in that the quantity of the first corresponding discharging gap is at least one, and the gap width of described first discharging gap is preset value.

6. leakage conductor according to claim 1, it is characterised in that described insulator is full skirt shape, spiral full skirt shape or insulating bar.

7. leakage conductor according to claim 6, it is characterised in that described electric discharge main body is wrapped in described umbrella petticoat insulator edge or is spirally wound on described spiral umbrella petticoat insulator edge.

8. leakage conductor according to claim 1, it is characterised in that described leakage conductor also includes a fixing device, and described fixing device is for being fixed on steel tower by described leakage conductor.