CN205248018U - Urban railway for contact net measurable thunder and lightning number of times take arrester with series gaps - Google Patents
Urban railway for contact net measurable thunder and lightning number of times take arrester with series gaps Download PDFInfo
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- CN205248018U CN205248018U CN201520638971.9U CN201520638971U CN205248018U CN 205248018 U CN205248018 U CN 205248018U CN 201520638971 U CN201520638971 U CN 201520638971U CN 205248018 U CN205248018 U CN 205248018U
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- insulating barrier
- arrester
- lightning
- installing plate
- fixation kit
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Abstract
The utility model relates to an urban railway for contact net measurable thunder and lightning number of times take arrester with series gaps, its characterized in that: arrester and the parallelly connected installation of insulator comprise lightning arrester body, arrester electrode, the fixed subassembly of body, the fixed subassembly of insulating barrier, insulating barrier and discharge electrode, and lightning arrester body installs on the fixed subassembly of body, and the fixed subassembly of body is fixed at the insulator high -pressure side, and the arrester electrode mounting is on lightning arrester body, insulating barrier installs on the fixed subassembly of insulating barrier, and insulating barrier is fixed, and the unit mount is installed on insulating barrier at insulator low tension side, discharge electrode, forms air gap between discharge electrode and arrester electrode, the discharge electrode passes through wire and counter series connection back ground connection. The utility model discloses connect in parallel at the insulator both ends, can prevent that the thunderbolt from arousing the insulator flashover. Air gap keeps apart system voltage, and the arrester has good ageing resistance. With the counter series connection, has the tally function of discharging of being struck by lightning.
Description
Technical field
The utility model relates to a kind of arrester with gaps, particularly the band of the measurable thunder and lightning number of times of a kind of city rail contact netArrester with series gaps.
Background technology
Urban track traffic fast development, circuit is day by day intensive, and elevated line increases gradually. Urban track traffic traction power supply systemThe dielectric level of system is very low, is difficult to resist lightning surge, in the many engineerings that put into operation, more Lightning Disaster has all occurred, and makesBecome contact net insulator or traction substation equipment to damage, even impact driving.
On urban rail transit elevated circuit, the Lightning Disaster of tractive power supply system is more, loses larger. At present, the whole nationPut into operation in the rail engineering of city, the less and function imperfection of lightning protection method, can not meet modern city rail system high reliability fortuneThe requirement of row.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide one to overcome above-mentionedDefect, can significantly reduce the lightning fault probability of city rail contact net, the insulator arc-over that the circuit that prevents from being struck by lightning causes,Reduce the line tripping rate that thunderbolt causes, improve the lightning protection level of city rail contact net, can show that again arrester suffersThe series gap arrester of the measurable thunder and lightning number of times of lightning discharge number of times.
The utility model solves the technical scheme that its technical problem adopts: provide a kind of city rail contact net measurable thunderThe series gap arrester of electricity number of times, is characterized in that: arrester and insulator are installed in parallel, by lightning arrester body, lightning-arrestDevice electrode, body fixation kit, insulating barrier fixation kit, insulating barrier and discharge electrode composition, lightning arrester body is arranged on thisOn body fixation kit, body fixation kit is fixed on insulator high-pressure side, and arrester electrode is arranged on lightning arrester body; InsulationDividing plate is arranged on insulating barrier fixation kit, and insulating barrier fixation kit is arranged on insulator low-pressure side, and discharge electrode is arranged on absolutelyOn edge dividing plate, between discharge electrode and arrester electrode, form the air gap; Discharge electrode connect with counter by wire after ground connection.
Distance between described arrester electrode and discharge electrode is 20～300mm.
Described insulating barrier have the insulated umbrella rib of protective effect, with the circular taper hole of discharge electrode interference fit, with insulating barrierThe U-shaped strip hole that installing plate reinforcement coordinates, the manhole coordinating with insulating barrier installing plate.
Described insulating barrier fixation kit comprises insulating barrier anchor ear, insulating barrier installing plate, and insulating barrier fixation kit is U-shapedBolt, nut, plain cushion, bullet pad etc., insulating barrier fixation kit U-bolt is arranged on insulating barrier anchor ear and through exhaustedTwo circular holes on edge dividing plate installing plate, have the function that prevents that U-bolt from rocking, and can reinforced insulation dividing plate firmlyProperty, make discharging gap distance sustained, nut is arranged on U-bolt; Insulating barrier is arranged on insulating barrier by screwOn installing plate.
Described lightning arrester body fixation kit comprise installing plate, installing plate anchor ear, body fixation kit U-bolt, nut,Plain cushion, bullet pad, wherein installing plate is fine casting type, and installing plate one end is provided with the circular hole being connected with lightning arrester body, and body is solidLocking assembly U-bolt is arranged on installing plate anchor ear and by two circular holes of installing plate, installing plate is provided with reinforcement, thisSample can prevent installing plate distortion, increase mounting plates structure intensity, make product coordinate, attractive in appearance, installing plate nut is arranged on UOn shape bolt.
Described counter portion comprises counter and securing member, and counter is fixed on pillar by securing member, and described is fasteningPart comprises cross-arm, anchor ear, the second screw rod, nylon cushion, nylon cap, and nylon cushion and nylon cap are stuck in cross-arm installing hole, cross-armClosely be connected by the second screw rod with anchor ear.
Very disc of described electric discharge, central spot is provided with screwed hole.
Described insulating barrier anchor ear or installing plate anchor ear, there is U-shaped groove its upper end.
In the time that system is normally moved, due to series gap isolation, lightning arrester body does not bear system DC operation voltage; In amplitudeUnder sufficiently high induction thunder or the effect of direct lightning strike overvoltage, lightning arrester body is Low ESR, and series gap is breakdown, thunder energyDischarge by resistor disc, leak into the earth through lead-in wire by counter, limited the overvoltage at insulator two ends, prevent insulator edgeThe electric discharge of face flashover, unison counter action, shows the increase of lightning discharge number of times once; After lightning impulse, be applied to arresterThe voltage at body two ends is system working voltage, and body is high impedance, and direct current afterflow electric arc extinguishes within the extremely short time, airGap insulation recovers rapidly, and circuit is got back to normal operating condition.
The beneficial effect that the utility model has is:
1) be connected in parallel on insulator two ends, can prevent that thunderbolt from causing insulator arc-over. The air gap shielding system voltage, keeps awayThunder utensil has good ageing resistance.
2) be connected in series with counter, there is lightning discharge tally function, can record the lightning discharge number of times of arrester,For the scientific research of city rail traffic contact net lightning protection provides service data.
3), by the buffer action of insulating support plate, lightning current is released, because insulating support plate has larger climbing by counterElectrical distance, has guaranteed the reliability that lightning discharge hour counter moves under the various mal-conditions such as filth, salt fog.
4) counter portion and lightning arrester body part are installed respectively, and the contact net that goes for all kinds, various sizes props upPost.
Brief description of the drawings
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the utility model arrester part-structure schematic diagram;
Fig. 3 is the utility model arrester part-structure schematic diagram axonometric drawing;
Fig. 4 is discharge electrode form two structural representations of the present utility model;
Fig. 5 is the utility model counter portion structural representation one
Fig. 6 is the utility model counter portion structural representation two;
Fig. 7 is insulating barrier mounting plates structure schematic diagram one;
Fig. 8 is insulating barrier mounting plates structure schematic diagram two;
Fig. 9 is insulating barrier structural representation;
Figure 10 is the second discharge electrode structural representation one;
Figure 11 is the second discharge electrode structural representation two;
Wherein: 1, arrester part; 2, counter portion; 3, connect wire; 4, pillar; 5, insulator; 6,Insulating barrier anchor ear; 7, body fixation kit anchor ear; 8, insulating barrier fixation kit U-bolt; 9, the fixing group of bodyPart U-bolt; 10, arrester installing plate; 11, the first nut; 12, lightning arrester body; 13, arrester electrode;14, locating piece; 15, insulating barrier; 16, discharge electrode; 17, the first wire nose; 18, the second nut; 19, insulationDividing plate installing plate; 20, the first screw rod; 21, the 3rd nut; 22, the 4th nut; 23, nameplate; 24, the 5th nut;25, the second wire nose; 26, counter; 27, cross-arm; 28, anchor ear; 29, the second screw rod; 30, the 3rd screw rod;31, nylon cushion; 32 nylon caps; 33, the 6th nut; 34, the 7th nut; 35, reinforcement; 36, first is circular logicalHole; 37, strip hole; 38, the second manhole; 39, insulated umbrella rib; 40, circular taper hole; 41, U-shaped strip hole;42, screwed hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Fig. 1～Figure 11, the series gap arrester of the measurable thunder and lightning number of times of a kind of city rail contact net, comprises and keeping awayThunder device part 1, counter portion 2, connection wire 3 are for installing the pillar 4 of this arrester.
Described arrester part 1 comprises lightning arrester body 12, arrester electrode 13, arrester installing plate 10, insulating barrierAnchor ear 6, body fixation kit anchor ear 7, insulating barrier fixation kit U-bolt 8, body fixation kit U-bolt 9, fixedPosition piece 14, insulating barrier 15, discharge electrode 16, the first nut 11, the second nut 18, the 3rd nut 21, the 4th nut 22,Nameplate 23, the 5th nut 24. Wherein, arrester installing plate 10 passes through body fixation kit U with body fixation kit anchor ear 7Type bolt 9, the first nut 11, be fixed on insulator 5 high-pressure sides, and discharge electrode 16 is fixed on insulating barrier by interference fitIn 15 circular taper hole 40, insulating barrier installing plate 19 is tight by the first screw rod 20, the 3rd nut 21 with insulating barrier 15Connect, insulating barrier installing plate 19 passes through insulating barrier fixation kit U-bolt 8, the 4th nut with insulating barrier anchor ear 6 again22 are fixed on insulator 5 low-pressure ends. Between discharge electrode 16 and arrester electrode 13, form the air gap, locating piece 14 is inserted inInsulating barrier 15 lower ends, after product installs, remove locating piece 14.
Described counter portion 2 comprises counter 26, cross-arm 27, anchor ear 28, the second screw rod 29, the 3rd screw rod 30, Buddhist nunDragon pad 31, nylon cap 32, the 6th nut 33, the 7th nut 34. Wherein, nylon cushion 31 is stuck in cross-arm 27 with nylon cap 32In installing hole. Cross-arm 27 is closely connected by the second screw rod 29 with anchor ear 28.
Described connection wire 3 also comprises the first wire nose 17, the second wire nose 25 except wire.
Described insulating barrier installing plate 19 has reinforcement 35, convenient the first manhole 36 being connected with insulating barrier 15, sideJust the strip hole 37 being connected with insulating barrier anchor ear 6.
Described insulating barrier 15 has convenient the second manhole 38 being connected with the first manhole 36, also has protective effectInsulated umbrella rib 39, with the circular taper hole 40 of discharge electrode 16 interference fit, the U-shaped strip hole 41 coordinating with reinforcement 35.
Described discharge electrode 16 collar plate shapes, central spot is provided with screwed hole 42.
Distance between described arrester electrode 13 and discharge electrode 16 is 30～200mm.
In the time that system is normally moved, due to series gap isolation, lightning arrester body 12 does not bear system DC operation voltage; At widthBe worth under sufficiently high induction thunder or the effect of direct lightning strike overvoltage, lightning arrester body 12 is Low ESR, and series gap is breakdown, thunder and lightningEnergy discharges by resistor disc, leaks into the earth through lead-in wire by counter, has limited the overvoltage at insulator two ends, prevents insulationSub-edge flashing electric discharge, unison counter action, shows the increase of lightning discharge number of times once; After lightning impulse, be applied to and keep awayThe voltage at thunder device body 12 two ends is system working voltage, and body is high impedance, and direct current afterflow electric arc extinguishes within the extremely short time,The air gap insulation recovers rapidly, and circuit is got back to normal operating condition.
Lightning arrester body 12 adopts known frame mode, and inside does not have cavity, avoids because of respiration, moisture being brought in productPortion.
By a large amount of lightning impulse tests, verify the 20%-80% that accounts for insulator 5 insulation distances in series gap distanceTime, under different steepness lightning surges, flashover path all occurs on series gap, and lightning arrestor movement is reliable, can be effectiveProtection insulated conductor avoids damaging.
Claims (7)
1. the series gap arrester of measurable thunder and lightning number of times for a city rail contact net, it is characterized in that: arrester and insulator (5) are installed in parallel, formed by lightning arrester body (12), arrester electrode (13), body fixation kit, insulating barrier fixation kit, insulating barrier (15) and discharge electrode (16), lightning arrester body (12) is arranged on body fixation kit, body fixation kit is fixed on insulator (5) high-pressure side, and arrester electrode (13) is arranged on lightning arrester body (12); Insulating barrier (15) is arranged on insulating barrier fixation kit, insulating barrier fixation kit is arranged on insulator (5) low-pressure side, it is upper that discharge electrode (16) is arranged on insulating barrier (15), between discharge electrode (16) and arrester electrode (13), forms the air gap; Discharge electrode (16) is by wire (3) the afterwards ground connection of connecting with counter;
Described insulating barrier have the insulated umbrella rib (39) of protective effect, with the circular taper hole (40) of discharge electrode (16) interference fit; the U-shaped strip hole (41) coordinating with insulating barrier installing plate (19) reinforcement, the manhole (38) coordinating with insulating barrier installing plate (19).
2. the series gap arrester of measurable thunder and lightning number of times for city rail contact net according to claim 1, is characterized in that: the distance between described arrester electrode (13) and discharge electrode (16) is 20～300mm.
3. the series gap arrester of measurable thunder and lightning number of times for city rail contact net according to claim 1, it is characterized in that: described insulating barrier fixation kit comprises insulating barrier anchor ear (6), insulating barrier installing plate (19), insulating barrier fixation kit U-bolt (8), nut, plain cushion, bullet pad, insulating barrier fixation kit U-bolt (8) is arranged on insulating barrier anchor ear (6) above and passes two circular holes (37) on insulating barrier installing plate, there is the function that prevents that U-bolt from rocking, and fastness that can reinforced insulation dividing plate, make discharging gap distance sustained, nut is arranged on U-bolt (8), insulating barrier (15) is arranged on insulating barrier installing plate (19) by screw.
4. the series gap arrester of measurable thunder and lightning number of times for city rail contact net according to claim 1, it is characterized in that, described lightning arrester body fixation kit comprises installing plate (10), installing plate anchor ear (7), body fixation kit U-bolt (9), nut, plain cushion, bullet pad, wherein installing plate (10) is fine casting type, installing plate (10) one end is provided with the circular hole being connected with lightning arrester body, body fixation kit U-bolt (9) is arranged on installing plate anchor ear (7) above and passes through two circular holes of installing plate (10), installing plate (10) is provided with reinforcement, can prevent like this distortion of installing plate (10), increase installing plate (10) structural strength, product is coordinated, attractive in appearance, installing plate nut is arranged on U bolt.
5. the series gap arrester of measurable thunder and lightning number of times for city rail contact net according to claim 1, it is characterized in that: described counter portion comprises counter (26) and securing member, counter (26) is fixed on (4) on pillar by securing member, described securing member comprises cross-arm (27), anchor ear (28), the second screw rod (29), nylon cushion (31), nylon cap (32), nylon cushion (31) is stuck in cross-arm installing hole with nylon cap (32), cross-arm (27) is closely connected by the second screw rod (29) with anchor ear (28).
6. the series gap arrester of measurable thunder and lightning number of times for city rail contact net according to claim 1, is characterized in that: described discharge electrode (16) is disc, and central spot is provided with screwed hole.
7. the series gap arrester with measurable thunder and lightning number of times according to the city rail contact net described in claim 4 or 5, is characterized in that, described insulating barrier anchor ear (6) or installing plate anchor ear (7), and there is U-shaped groove its upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638971.9U CN205248018U (en) | 2015-08-22 | 2015-08-22 | Urban railway for contact net measurable thunder and lightning number of times take arrester with series gaps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638971.9U CN205248018U (en) | 2015-08-22 | 2015-08-22 | Urban railway for contact net measurable thunder and lightning number of times take arrester with series gaps |
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| Publication Number | Publication Date |
|---|---|
| CN205248018U true CN205248018U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520638971.9U Active CN205248018U (en) | 2015-08-22 | 2015-08-22 | Urban railway for contact net measurable thunder and lightning number of times take arrester with series gaps |
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| Country | Link |
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| CN (1) | CN205248018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239450A (en) * | 2018-09-26 | 2019-01-18 | 广东电网有限责任公司 | Counter installing mechanism |
-
2015
- 2015-08-22 CN CN201520638971.9U patent/CN205248018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239450A (en) * | 2018-09-26 | 2019-01-18 | 广东电网有限责任公司 | Counter installing mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |