CN205646436U - Urban rail transit contact net is with taking arrester with series gaps - Google Patents
Urban rail transit contact net is with taking arrester with series gaps Download PDFInfo
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- CN205646436U CN205646436U CN201520691406.9U CN201520691406U CN205646436U CN 205646436 U CN205646436 U CN 205646436U CN 201520691406 U CN201520691406 U CN 201520691406U CN 205646436 U CN205646436 U CN 205646436U
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Abstract
The utility model relates to an urban rail transit contact net is with taking arrester with series gaps, its characterized in that: arrester and the parallelly connected installation of insulator comprise lightning arrester body, the fixed subassembly of body, the fixed subassembly of discharge electrode, arrester electrode and discharge electrode, the arrester electrode mounting is on lightning arrester body, and lightning arrester body installs on the fixed subassembly of body, and the fixed subassembly of body is fixed at the insulator low tension side, discharge electrode installs on the fixed subassembly of discharge electrode, and discharge electrode is fixed, and the subassembly is fixed at the insulator high -pressure side, forms discharge gap between discharge electrode and the arrester electrode. The utility model discloses can effectively overcome the prior art defect, provide the thunderbolt fault probability that can reduce urban railway handing -over by a wide margin and touch net, insulator flashover that the circuit that prevents to be struck by lightning arouses reduces the line tripping that the thunderbolt caused and rates, improves the lightning protection level of urban railway traffic contact net, can show again that the arrester suffers thunderbolt discharge number's novel urban rail transit contact net is with taking arrester with series gaps.
Description
Technical field
This utility model relates to a kind of spark gap, particularly to a kind of urban rail transit contact network series gap spark gap, is particularly well-suited on urban rail transit elevated circuit.
Background technology
Urban track traffic is fast-developing, and circuit is the most intensive, and elevated line is gradually increased.Tractive power supply system is the important system in railway traffic engineering, and function is to vehicle reliable power supply.The apparatus insulated level of tractive power supply system is the lowest, it is difficult to resist lightning surge, all there occurs more Lightning Disaster in the many engineerings put into operation, and causes contact net insulator or traction substation equipment to damage, even affects driving.On urban rail transit elevated circuit, the Lightning Disaster of tractive power supply system is more, loses bigger.At present, the whole nation has been put into operation in urban rail engineering, and lightning protection method is less and function imperfection, can not meet the requirement that modern urban rail system high reliability is run.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide one can overcome drawbacks described above, lightning fault probability that city rail handing-over touch net can be greatly lowered, prevent the insulator arc-over that thunderbolt circuit causes, reduce the line tripping rate that thunderbolt causes, improve the lightning protection level of urban rail transit contact network, can show that again spark gap suffers the new city railway traffic contact network series gap spark gap of lightning discharge number of times.
This utility model be employed technical scheme comprise that a kind of urban rail transit contact network series gap spark gap of offer, including insulator, also include lightning arrester body, body fixation kit, discharge electrode fixation kit, spark gap electrode and discharge electrode, lightning arrester body is arranged on body fixation kit, body fixation kit is fixed on insulator low-pressure side, spark gap electrode is arranged on lightning arrester body, discharge electrode is arranged on discharge electrode fixation kit, discharge electrode fixation kit is fixed on insulator high-pressure side, forms the air gap between discharge electrode and spark gap electrode.
There is insulation dottle pin isolation electrical connection spark gap and body fixation kit junction, are connected with enumerator by outconnector bottom spark gap.
Spark gap is electrically connected with body fixation kit.
The described distance between spark gap electrode and discharge electrode is 20～300mm.
Wherein spark gap electrode can be bulb shape and tack shape or other shape, and discharge electrode can be writing board shape and bulb-type or other shape, when system high pressure side has other structure to may make up discharge electrode, removable discharge electrode and body fixation kit thereof.
Described lightning arrester body fixation kit includes installing plate, installing plate anchor ear, U bolt, nut, plain cushion, spring washer, wherein installing plate is fine casting type, installing plate one end is provided with the circular hole being connected with lightning arrester body, U bolt is arranged on installing plate anchor ear and by two circular holes of installing plate, installing plate is provided with reinforcement, so be possible to prevent installing plate deformation, increase mounting plates structure intensity, make product coordinate, attractive in appearance, installing plate nut is arranged on U bolt.Its advantage be bending resistance by force, the most through-flow, product is attractive in appearance,
Described discharge electrode anchor ear or installing plate anchor ear, there is U-shaped groove its upper end, and U bolt can be fixed in U-shaped groove, prevents U bolt from sliding.
Connecting line connects spark gap bottom screw.Also can be electrically connected device extraction by bottom by other and receive on enumerator line when system is properly functioning, owing to series gap is isolated, lightning arrester body is not subject to system dc working voltage.
The beneficial effects of the utility model are:
Under the sufficiently high induced lightening of amplitude or direct lightning strike overvoltage effect, lightning arrester body is Low ESR, and series gap is breakdown, thunder energy is discharged by resistor disc, leak into the earth through lead-in wire, limit the overvoltage at insulator two ends, prevent insulator edge flashing from discharging；After lightning impulse, the voltage being applied to lightning arrester body two ends is system working voltage, and body is high impedance, and direct current afterflow electric arc extinguished within the extremely short time, and the air gap insulation recovers rapidly, and circuit returns to normal operating condition.Lightning arrester body uses known frame mode, and inside does not has cavity, it is to avoid because Repiration brings moisture into interiors of products.
Accompanying drawing explanation
Fig. 1 is overall installation structural representation of the present utility model；
Fig. 2, Fig. 3 are that this utility model can the mounting structure schematic diagram of linkage counter；
Fig. 4 is the mounting structure schematic diagram that this utility model is not connected to enumerator；
Fig. 5 is the mounting structure schematic diagram that system structure serves as discharge electrode；
Fig. 6 is installing plate schematic diagram；
Fig. 7 is discharge electrode schematic diagram；
Fig. 8, Fig. 9 are spark gap electrode schematic diagrams.
In figure: 1, series gap spark gap and Its Pollution Flashover Voltage schematic diagram；2, counter assembly scheme of installation；3, connecting line；4, mounting column；5, insulator；6, low-pressure side；7, high-pressure side；8, installing plate anchor ear；9, discharge electrode anchor ear；10, U-bolt；11, installing plate；12, discharge electrode；13, lightning arrester body；14, insulation dottle pin；15, wire nose；16, mark closely；17, extraction is marked closely；18, spark gap electrode, 19, discharging gap, 20, reinforcement；21, screwed hole.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further:
As shown in Figure 1, a kind of urban rail transit contact network series gap spark gap, including insulator and structure for installing lightning arrester 1, also including that enumerator body fixation kit 2, structure 1 are attached by wire nose and connecting line 3 with structure 2, structure 1 and structure 2 are installed on mounting column 4.
Show as described in Fig. 2, Fig. 3, insulator and series gap structure for installing lightning arrester 1, including insulator 5, insulator low-pressure side 6, insulator high-pressure side 7, wherein in body fixation kit, installing plate anchor ear 8 and installing plate 11 are arranged on low-pressure side by U-bolt 10, by plain cushion, spring washer, nut for tight on U-bolt；In discharge electrode fixation kit, discharge electrode anchor ear 9 and discharge electrode 12 are arranged on high-pressure side by U-bolt 10, by plain cushion, spring washer, nut for tight on U-bolt；Wherein lightning arrester body is connected with installing plate 11 by marking closely 16, and form discharging gap 19 between discharge electrode 12, discharging gap distance is 20～300mm, if tape counter in overall structure, then mark closely and isolated by insulation dottle pin 14 in the middle of 16 installing plates 11, wire nose 15 abuts against on the aluminium end cap of spark gap rear end, it is enclosed within and marks closely on 16, or be enclosed within extraction and mark closely on 17, standby tight by nut etc., wire nose 15 is connected with enumerator high-pressure side through connecting line after connecting with connecting line, realize the urban rail transit contact network series gap spark gap tally function when electric discharge；If without enumerator in overall structure, then removing insulation dottle pin 14, spark gap is directly installed on installing plate 11, is discharged by installing plate 11.
As shown in Figure 4, for urban rail transit contact network series gap spark gap without the product of enumerator, eliminate insulation dottle pin 14, be directly electrically connected with installing plate 11 by marking closely 16, form discharge loop.
As it is shown in figure 5, be that urban rail transit contact network series gap spark gap removes discharge electrode and the structural representation of discharge electrode fixation kit, high-voltage line therein is naked connecting line, just can form discharge loop with the spark gap electrode installed.
As shown in Figure 6, installing plate 11 one end is provided with the circular hole being connected with lightning arrester body, U bolt 10 is arranged on installing plate anchor ear 8 and by two circular holes of installing plate 11, installing plate 11 is provided with reinforcement, be so possible to prevent installing plate deformation, increase mounting plates structure intensity, make product coordinate, attractive in appearance.
As shown in Figure 7, Figure 8, U bolt 10 is arranged on discharge electrode anchor ear 9 and by two circular holes of discharge electrode 12, discharge electrode 12 is provided with reinforcement, so be possible to prevent discharge electrode deformation, increase discharge electrode structural strength, make product coordinate, attractive in appearance, the shape of discharge electrode can also be spherical or other discharging structure
As it is shown in figure 9, spark gap electrode 18 is respectively adopted orange capitiform formula and butterfly bulb form, being internally provided with reinforcement 20, central spot is provided with screwed hole 21, the discharge electrode structure that lightning arrester discharge pole 18 also can take other form.
Discharge electrode anchor ear 9 or installing plate anchor ear 8, its upper end has U-shaped groove, U bolt 10 can be fixed in U-shaped groove, prevents U bolt from sliding.
When system is properly functioning, owing to series gap is isolated, lightning arrester body is not subject to system dc working voltage；Under the sufficiently high induced lightening of amplitude or direct lightning strike overvoltage effect, lightning arrester body is Low ESR, series gap is breakdown, thunder energy is discharged by resistor disc, leaks into the earth through lead-in wire by enumerator or installing plate electrode, limits the overvoltage at insulator two ends, prevent insulator edge flashing from discharging, simultaneously during tape counter, counter action, display lightning discharge number of times increase is once；After lightning impulse, the voltage being applied to lightning arrester body two ends is system working voltage, and body is high impedance, and direct current afterflow electric arc extinguished within the extremely short time, and the air gap insulation recovers rapidly, and circuit returns to normal operating condition.
Lightning arrester body uses known frame mode, and inside does not has cavity, it is to avoid because Repiration brings moisture into interiors of products.
Claims (8)
1. a urban rail transit contact network series gap spark gap, it is characterized in that: spark gap is installed in parallel with insulator (5), be made up of lightning arrester body (13), body fixation kit, discharge electrode fixation kit, spark gap electrode (18) and discharge electrode (12)；Spark gap electrode (18) is arranged on lightning arrester body (13), and lightning arrester body (13) is arranged on body fixation kit, and body fixation kit is fixed on insulator (5) low-pressure side；Discharge electrode (12) is arranged on discharge electrode fixation kit, and discharge electrode fixation kit is fixed on insulator (5) high-pressure side, forms discharging gap (19) between discharge electrode (12) and spark gap electrode (18).
Urban rail transit contact network series gap spark gap the most according to claim 1, it is characterised in that: lightning arrester body (13) is connected with body fixation kit.
Urban rail transit contact network series gap spark gap the most according to claim 1, it is characterised in that: there is insulation dottle pin isolation lightning arrester body and body fixation kit junction, by after connecting with enumerator through enumerator ground connection.
Urban rail transit contact network series gap spark gap the most according to claim 1, it is characterised in that: the distance between described spark gap electrode (18) and discharge electrode (12) is 20～300mm.
Urban rail transit contact network series gap spark gap the most according to claim 1, it is characterized in that: described discharge electrode fixation kit includes discharge electrode anchor ear (9), U bolt (10), nut, plain cushion, spring washer, U bolt (10) is arranged on discharge electrode anchor ear (9) and above and passes two circular holes on discharge electrode (12), and nut is arranged on U-bolt (10).
Urban rail transit contact network series gap spark gap the most according to claim 1, it is characterized in that, described body fixation kit includes installing plate (11), installing plate anchor ear (8), U bolt (10), nut, plain cushion, spring washer, wherein installing plate (11) is fine casting type, installing plate (11) one end is provided with the circular hole being connected with lightning arrester body (13), U bolt (10) is arranged on installing plate anchor ear (8) and by two circular holes of installing plate (11), installing plate (11) is provided with reinforcement, installing plate nut is arranged on U bolt.
7. according to the series gap spark gap of the urban rail transit contact network described in claim 5 or 6, it is characterized in that, described discharge electrode anchor ear (9) or installing plate anchor ear (8), there is U-shaped groove (22) its upper end, U bolt (10) can be fixed in U-shaped groove, can prevent U bolt (10) from sliding.
Urban rail transit contact network series gap spark gap the most according to claim 2, it is characterised in that connecting line connects spark gap bottom screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520691406.9U CN205646436U (en) | 2015-09-08 | 2015-09-08 | Urban rail transit contact net is with taking arrester with series gaps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520691406.9U CN205646436U (en) | 2015-09-08 | 2015-09-08 | Urban rail transit contact net is with taking arrester with series gaps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205646436U true CN205646436U (en) | 2016-10-12 |
Family
ID=57077642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520691406.9U Active CN205646436U (en) | 2015-09-08 | 2015-09-08 | Urban rail transit contact net is with taking arrester with series gaps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205646436U (en) |
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2015
- 2015-09-08 CN CN201520691406.9U patent/CN205646436U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190116 Address after: 255086 Advanced Manufacturing Industry Innovation Park No. 11, Huabei Road, Zibo High-tech Zone, Shandong Province Co-patentee after: Tianjin railway electrification design and Research Institute Co Ltd Patentee after: Shandong Xunshi Electric Co., Ltd. Address before: 255086 Advanced Manufacturing Industry Innovation Park No. 11, Huabei Road, Zibo High-tech Zone, Shandong Province Co-patentee before: China Railway Electrification Survey Design & Research Institute Co., Ltd. Patentee before: Shandong Xunshi Electric Co., Ltd. |
|
| TR01 | Transfer of patent right |