CN203481622U - Rod-shaped outer-gap lightning arrester for 10kV system insulating overhead line linear rod - Google Patents
Rod-shaped outer-gap lightning arrester for 10kV system insulating overhead line linear rod Download PDFInfo
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- CN203481622U CN203481622U CN201320556495.7U CN201320556495U CN203481622U CN 203481622 U CN203481622 U CN 203481622U CN 201320556495 U CN201320556495 U CN 201320556495U CN 203481622 U CN203481622 U CN 203481622U
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- discharge electrode
- clavate
- insulated conductor
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Abstract
The utility model relates to a rod-shaped outer-gap lightning arrester for a 10kV system insulating overhead line linear rod, and belongs to a safety device used for preventing a high-voltage transmission system from being struck by lightning. The outer-gap lightning arrester is provided with an upper discharge gap device on an insulated wire, wherein a contact surface between the upper discharge gap device and the insulated wire is provided with an insulating material packaged needle, and the insulating material packaged needle is electrically connected with an upper discharge electrode and the insulated wire. A lightning arrester body is fixedly installed on a lightning arrester installation board, the lightning arrester installation board is fixedly connected with a lightning arrester supporting plate, and a discharge gap is formed between the upper discharge electrode at the lower part of the upper discharge gap device and a lower discharge electrode at the upper part of the lightning arrester body. The rod-shaped outer-gap lightning arrester provided by the utility model adopts a gap distance measuring device which is carried by a product and convenient for adjusting the discharge gap between the upper discharge electrode and the lower discharge gap. The outer-gap lightning arrester is convenient to install and accurate in discharge gap adjustment, and can ensure a deserved insulating effect of the insulated wire.
Description
Technical field
The utility model relates to clavate external series gap lightning arrester for a kind of 10kV system insulation overhead transmission line straight line pole, belongs to the safety device that high voltage power transmisson system prevents thunderbolt.
Background technology
From the nineties, China starts to adopt insulated conductor power transmission in the transmission line of city.These technical measures can reduce the circuit corridor floor space of urban distribution network.Solve plain conductor due to the phase fault accident that the foreign matters such as branch cause simultaneously, improved power supply reliability.But easily there is lightning-caused breaking in insulated conductor, after broken string, easily results in personal injury caused by an accident.Therefore the insulated conductor that prevents from being struck by lightning breaks and becomes a key technology of insulated conductor power transmission.
Numerous scientific research institutions and enterprise have dropped into a large amount of human and material resources and have studied.A series of lightning protection components such as electric discharge wire clamp, clamper insulator, anti-lightning strike insulator have been released.But effect is all undesirable.After 2008, start to apply lightning arrester as the element of anti-insulated conductor breakage caused by lightning stroke.This element has been obtained good effect, and it can not only prevent lightning-caused breaking and greatly reduce tripping rate with lightning strike.
Due to original lightning arrester be mainly arranged in power station and transmission line bar on by electric equipment, the structure of product and electrical parameter can meet the demands completely.Transmission line lightning protection is that lightning arrester is arranged on the electric pole cross-arm of transmission line.Of a great variety due to high-tension pole, has a series of bar types such as straight line pole, the bar of resistance to line, the straight line pole of resistance to line, strain insulator angle pole, disconnected link rod.Same lightning arrester is difficult to meet the demands.The original multiple lightning arrester of straight line pole is applied in system.As penetrating electrodes formula composite sheath metal oxide surge attester with series gap, annular electrode formula composite sheath metal oxide surge attester with series gap, 10kV gap lightning arrester etc.All there is following several problem in these lightning arresters for straight line pole.First: gap itself is not fixed, the adjustment of clearance distance is when mounted difficult.Because wire itself has sag, during installation, with ruler, go measurement clearance distance to be difficult to measure accurately.Second: discharging gap shape mostly is the electric discharge of ball-ball, and discharge dispersity is larger.The the 3rd: product structure is complicated, complexity is installed, technique is difficult to control.The the 4th: top electrode adopts penetrating cable clamp or ball discharge.Sparking electrode is externally exposed, forms electrified body.Lost like this object of application insulated conductor.
Summary of the invention
In order to overcome problems of the prior art, the utility model provides clavate external series gap lightning arrester for a kind of 10kV system insulation overhead transmission line straight line pole.This external series gap lightning arrester is easy for installation, and Spark gap adjustment is accurate, guarantees the due insulating effect of insulated conductor.
The technical solution adopted in the utility model is: clavate external series gap lightning arrester for a kind of 10kV system insulation overhead transmission line straight line pole, insulated conductor is supported by the pillar line insulator being fixed on electric pole cross-arm, described insulated conductor is provided with a upper discharging gap apparatus, lightning arrester body is fixedly mounted on lightning arrester mounting panel, lightning arrester mounting panel is fixedly connected with lightning arrester supporting plate, between the upper discharge electrode of described upper discharging gap apparatus bottom and the lower discharge electrode on lightning arrester body top, forms discharging gap.
The contact-making surface on described upper discharging gap apparatus and insulated conductor surface is provided with insulating material and seals pricker, and insulating material is sealed pricker and is electrically connected to upper discharge electrode and insulated conductor.
Described upper discharge electrode adopts spherical structure, and lower discharge electrode adopts clavate structure.
Construction bolt hole on described lightning arrester mounting panel all adopts long trough structure, and lightning arrester supporting plate is provided with the installing hole that is equipped with mark P10, P15, P20, E12.5.
Described external series gap lightning arrester is with a clearance distance measuring appliance of being convenient to adjust discharging gap between upper discharge electrode and lower discharge electrode.
The beneficial effects of the utility model are: clavate external series gap lightning arrester for this 10kV system insulation overhead transmission line straight line pole, insulated conductor is provided with a upper discharging gap apparatus, the contact-making surface on upper discharging gap apparatus and insulated conductor surface is provided with insulating material and seals pricker, and insulating material is sealed pricker and is electrically connected to upper discharge electrode and insulated conductor.Lightning arrester body is fixedly mounted on lightning arrester mounting panel, and lightning arrester mounting panel is fixedly connected with lightning arrester supporting plate, between the upper discharge electrode of upper discharging gap apparatus bottom and the lower discharge electrode on lightning arrester body top, forms discharging gap.The clearance distance measuring appliance of being convenient to adjust discharging gap between upper discharge electrode and lower discharge electrode that during installation, Bian carries with a product.This external series gap lightning arrester is easy for installation, and Spark gap adjustment is accurate, can guarantee the due insulating effect of insulated conductor.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated
State diagram when Fig. 1 is the Installation and Debugging of 10kV system insulation overhead transmission line straight line pole use clavate external series gap lightning arrester.
Fig. 2 is the working state figure of clavate external series gap lightning arrester for 10kV system insulation overhead transmission line straight line pole.
Fig. 3 is the front view of lightning arrester supporting plate.
Fig. 4 is the end view of lightning arrester supporting plate.
In figure: 1, upper discharging gap apparatus, 2, on put the utmost point, 3, clearance distance measuring appliance, 4, lower discharge electrode, 5, discharge electrode connecting bolt, 6, lightning arrester body, 7, lightning arrester mounting panel, 8, lightning arrester supporting plate, 8a, installing hole, 9, pillar line insulator, 10, insulated conductor.
Embodiment
Fig. 2 shows the working state figure of clavate external series gap lightning arrester for a kind of 10kV system insulation overhead transmission line straight line pole.In figure, insulated conductor 10 is supported by the pillar line insulator 9 being fixed on electric pole cross-arm 11, insulated conductor 10 is provided with a upper discharging gap apparatus 1, the contact-making surface on upper discharging gap apparatus 1 and insulated conductor 10 surfaces is provided with insulating material and seals pricker, and insulating material is sealed pricker and is electrically connected to upper discharge electrode 2 and insulated conductor 10.Lightning arrester body 6 is fixedly mounted on lightning arrester mounting panel 7, and lightning arrester mounting panel 7 is fixedly connected with lightning arrester supporting plate 8, between the upper discharge electrode 2 of upper discharging gap apparatus 1 bottom and the lower discharge electrode 4 on lightning arrester body 6 tops, forms discharging gap.On lightning arrester supporting plate 8, be provided with 6 installing holes and be equipped with mark P10, P15, P20 and E12.5(as shown in Figure 3,4).Installation for differing heights P10, P15, P20 and E12.5 insulator.When mounted, the clearance distance measuring appliance 3(that Bian carries with a product is convenient to adjust discharging gap between upper discharge electrode 2 and lower discharge electrode 4 as shown in Figure 1).Upper discharge electrode 2 adopts spherical structure, and lower discharge electrode 4 adopts clavate structure.Construction bolt hole on lightning arrester mounting panel 7 adopts long trough structure, so that be connected (as shown in Figure 3,4) with any 2 installing hole 8a in lightning arrester supporting plate 8.During installation, according to circuit different insulative, select different installing hole coarse adjustment, then use the discharging gap between discharge electrode 2 and lower discharge electrode 4 in the fine tuning of clearance distance measuring appliance.
The technical problem underlying that adopts above-mentioned technical scheme to solve is: on market, existing product is because gap is unfixed, gap size control difficulty is large when mounted for product, simultaneously because multiple insulator in system is used simultaneously, the height of insulator is inconsistent, adopts adjustable installing hole to adapt to different insulators.The penetrating cable clamp that original lightning arrester connects mutually with wire is too complicated, and difficulty of construction is large.Sparking electrode is externally exposed, makes insulated conductor be formed with exposed electrified body, loses the effect that should have insulated conductor.
This product is structurally the simplest and the most direct effective.Particularly take ceramic material to seal insulation with the upper sparking electrode device of insulated conductor connection, make the sparking electrode that connects high-pressure side simplify many.Do not need with insulating cover, upper sparking electrode cover to be sealed again, reduced material consumption, the top electrode of every product can be saved 30 yuan of Master Costs, greatly reduces the cost of product simultaneously.While installing in addition, original electric discharge wire clamp top electrode complicated operation, turns round spanner with Special Force and takes fixation pressure to puncture wire, and wire punctures the degree of depth will affect discharge effect.Original lightning arrester set-up time stand-off distance is from measuring by tape measure in addition, and during installation, controlling dimension difficulty, makes discharge voltage dispersiveness larger.The different installing hole coarse adjustment clearance distances for insulator that this product is different according to circuit, then can measure and fixed interval (FI) size exactly with gap measuring apparatus, make gap discharge consistency strong.Adopt the more former lightning protection component installation effectiveness of this product to improve 2 times, on-the-spot easy for installation simple and direct.
Upper discharging gap apparatus 1 is to seal pricker and ball discharge by insulating material.Upper discharging gap apparatus 1 use larynx hoop clip fastens on insulated conductor 9.Clearance distance measuring appliance 3 one end are enclosed within on lightning arrester discharge rod, make dip stick tiltedly to the ball discharge in the discharging gap apparatus on wire, and upper discharging gap apparatus 1 can be fixed on this position.After measurement, take off clearance distance measuring appliance 3.Upper discharging gap apparatus 1 can move left and right on wire.When discharging gap is apart from after adjusting accurately, with larynx hoop by electric discharge device and conductor clamping.The pricker of going up discharging gap apparatus 1 punctures wire simultaneously, and ball discharge is connected with insulated conductor inner conductor by pricker.
When transmission line produces very high amplitude overvoltage due to thunderbolt, if there is no lightning arrester, when the Overvoltage Amplitude of wire is during higher than the flashover voltage of support wire insulator, insulator is flashover over the ground.As there is two-phase simultaneously during flashover, will cause phase fault.The amplitude of short circuit of system is very high, moment arc temperature high, cause wire fusing.When lightning arrester is attempted by insulator, if produce lightning overvoltage, first air gap punctures, and now lightning arrester starts conducting, discharges the energy of lightning overvoltage, and the nonlinear effect of volt-ampere curve due to lightning arrester, has limited the voltage magnitude at lightning arrester two ends.This amplitude is far smaller than the flashover voltage of insulator in parallel, has protected insulator that flashover does not occur, and while lightning current flows through rear lightning arrester and returns to very soon high-impedance state, blocks power frequency continued flow.Can there is not lightning stroke flashover tripping operation and wire fusing.
Claims (5)
1. clavate external series gap lightning arrester for a 10kV system insulation overhead transmission line straight line pole, insulated conductor (10) is supported by the pillar line insulator (9) being fixed on electric pole cross-arm (11), it is characterized in that: described insulated conductor (10) is provided with a upper discharging gap apparatus (1), lightning arrester body (6) is fixedly mounted on lightning arrester mounting panel (7), lightning arrester mounting panel (7) is fixedly connected with lightning arrester supporting plate (8), between the lower discharge electrode (4) on the upper discharge electrode (2) of described upper discharging gap apparatus (1) bottom and lightning arrester body (6) top, form discharging gap.
2. clavate external series gap lightning arrester for a kind of 10kV system insulation overhead transmission line straight line pole according to claim 1, it is characterized in that: the contact-making surface on described upper discharging gap apparatus (1) and insulated conductor (10) surface is provided with insulating material and seals pricker, and insulating material is sealed pricker and is electrically connected to upper discharge electrode (2) and insulated conductor (10).
3. clavate external series gap lightning arrester for a kind of 10kV system insulation overhead transmission line straight line pole according to claim 1 and 2, is characterized in that: described upper discharge electrode (2) adopts spherical structure, and lower discharge electrode (4) adopts clavate structure.
4. clavate external series gap lightning arrester for a kind of 10kV system insulation overhead transmission line straight line pole according to claim 1, it is characterized in that: the construction bolt hole on described lightning arrester mounting panel (7) all adopts long trough structure, lightning arrester supporting plate (8) is provided with the installing hole (8a) that is equipped with mark P10, P15, P20, E12.5.
5. clavate external series gap lightning arrester for a kind of 10kV system insulation overhead transmission line straight line pole according to claim 1, is characterized in that: described external series gap lightning arrester is with a clearance distance measuring appliance (3) of being convenient to adjust discharging gap between upper discharge electrode (2) and lower discharge electrode (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320556495.7U CN203481622U (en) | 2013-09-09 | 2013-09-09 | Rod-shaped outer-gap lightning arrester for 10kV system insulating overhead line linear rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320556495.7U CN203481622U (en) | 2013-09-09 | 2013-09-09 | Rod-shaped outer-gap lightning arrester for 10kV system insulating overhead line linear rod |
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| CN203481622U true CN203481622U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320556495.7U Expired - Fee Related CN203481622U (en) | 2013-09-09 | 2013-09-09 | Rod-shaped outer-gap lightning arrester for 10kV system insulating overhead line linear rod |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107996010A (en) * | 2015-06-22 | 2018-05-04 | 泰科电子瑞侃有限责任公司 | Field control element for high voltage cable fittings and method for optically measuring partial discharges |
| CN109873411A (en) * | 2019-04-19 | 2019-06-11 | 国网福建省电力有限公司宁德供电公司 | A kind of self-healing intelligent line lightning protection device and lightning protection method thereof |
| CN110619980A (en) * | 2019-10-25 | 2019-12-27 | 中国电力工程顾问集团中南电力设计院有限公司 | Fixed adjusting structure for discharge gap of ground wire insulator |
| CN112670840A (en) * | 2021-01-04 | 2021-04-16 | 西安西电避雷器有限责任公司 | Arrester electrode gap adjusting assembly |
| CN113358000A (en) * | 2021-06-17 | 2021-09-07 | 广东电网有限责任公司 | Air gap measuring method of gap arrester |
-
2013
- 2013-09-09 CN CN201320556495.7U patent/CN203481622U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107996010A (en) * | 2015-06-22 | 2018-05-04 | 泰科电子瑞侃有限责任公司 | Field control element for high voltage cable fittings and method for optically measuring partial discharges |
| CN109873411A (en) * | 2019-04-19 | 2019-06-11 | 国网福建省电力有限公司宁德供电公司 | A kind of self-healing intelligent line lightning protection device and lightning protection method thereof |
| CN109873411B (en) * | 2019-04-19 | 2024-05-17 | 国网福建省电力有限公司宁德供电公司 | Self-healing intelligent circuit lightning protection device and lightning protection method thereof |
| CN110619980A (en) * | 2019-10-25 | 2019-12-27 | 中国电力工程顾问集团中南电力设计院有限公司 | Fixed adjusting structure for discharge gap of ground wire insulator |
| CN112670840A (en) * | 2021-01-04 | 2021-04-16 | 西安西电避雷器有限责任公司 | Arrester electrode gap adjusting assembly |
| CN113358000A (en) * | 2021-06-17 | 2021-09-07 | 广东电网有限责任公司 | Air gap measuring method of gap arrester |
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| GR01 | Patent grant | ||
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| 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: 20140312 Termination date: 20210909 |