CN202093903U - Constraint space injection air flow arc extinguishing lightning protection gap device - Google Patents
Constraint space injection air flow arc extinguishing lightning protection gap device Download PDFInfo
- Publication number
- CN202093903U CN202093903U CN2011200053246U CN201120005324U CN202093903U CN 202093903 U CN202093903 U CN 202093903U CN 2011200053246 U CN2011200053246 U CN 2011200053246U CN 201120005324 U CN201120005324 U CN 201120005324U CN 202093903 U CN202093903 U CN 202093903U
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- lateral electrode
- arc extinguishing
- lightning protection
- ground connection
- gas generating
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Abstract
The present utility model relates to a lightning protection device, especially to a constraint space injection air flow arc extinguishing lightning protection gap device used in various voltage grade power transmission lines. The devices are connected in parallel and arranged on the two ends of a line insulator chain to ensure that the flashover voltage between gaps is less than that of the protected insulator chain, thus when a power transmission line is subjected to lightning stroke, the devices are preferentially broken down by the protected insulator chain. When the disruptive discharge happens, aerogenesis materials inside a constraint space is rapidly heated by a high temperature arc to generate high pressure gas, signals are automatically collected by a signal acquisition device, and an injection gas generation device is started to instantly generate high speed air flow to impact, cool and quench the arc along the vertical direction. The device is simple in structure and convenient for installing, when the line is subjected to lightning stroke, lightning current can be rapidly led into the ground, and the high speed air flow is generated to quench power frequency follow current, thus electric power equipments can be effectively protected, and the power supply reliability can be raised.
Description
Technical field
The utility model relates to a kind of lightning protection device, specifically a kind of constraint space jet-stream wind arc extinguishing lightning protection inter space device that is used for each electric pressure transmission line.
Background technology
The transmission line lightning protection always is the important content of power department lightning protection work, and lightning fault remains one of key factor that influences power grid security.The impulse flashover that transmission line causes when thunderbolt takes place causes the line insulator flashover, produces very big power frequency continued flow then, damages insulator string and gold utensil, causes line accident.Traditional " obstruction type " lightning protection mode is because its limitation can not solve the thunderbolt problem at all.Therefore the general employing of power department is installed gap or the leakage conductor protected in parallel additional at transmission line and is realized protective wire.Yet in the actual motion, protection gap in parallel and leakage conductor all have its obvious defects as follows:
At first, when thunderbolt took place transmission line, protection in parallel gap leaked into the earth preferentially because of the overvoltage that thunderbolt causes punctures with lightning current, thereby plays the effect of protection transmission line and electric equipment.Yet because protection in parallel gap does not have the arc extinguishing ability; can not extinguish the power frequency continued flow that causes behind the insulator string flashover; electric arc is long-time calcination between the protection gap; to cause insulator string to damage; when serious; may cause the transmission line broken string, electric arc can cause ablation and reduce its protective value electrode simultaneously.The final circuit breaker that relies on comes extinguish arcs to realize protecting transmission line and equipment, is to sacrifice the way that " trip-out rate " and " power supply reliability " exchanges " low rate of failure " for.
Secondly, leakage conductor costs an arm and a leg, use, maintenance cost height, Leakage Current is big, and useful life is short, changes frequent, and the zinc oxide module used of leakage conductor under lightning impulse owing to there is tangible kelvin effect, big electric current is blast easily down, causes the circuit chromic trouble, is unfavorable for electrical network economy, safety, stable operation.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming in the above-mentioned background technology, and a kind of constraint space jet-stream wind arc extinguishing lightning protection inter space device is provided.The utility model is at the actual conditions of China's multi-thunder area transmission line; the a large amount of exploitative experiments that carry out; designed a kind of suspension insulator (porcelain that can be used for each electric pressure transmission line; glass) and the constraint space jet-stream wind arc extinguishing lightning protection inter space device of strain insulator string; this device not only can have precedence over protected insulator string and puncture; and has an initiatively arc extinguishing function of very strong constraint space air blast; puncture at protective device; after lightning current flows through; gas generating unit action generation high velocity air extinguishes power frequency continued flow in the constraint space; reach the purpose of quick elimination thunderbolt ground connection or short trouble; and the quenching time is less than relaying protection operate time, thereby effectively guarantees the reliability of powering.
This constraint space jet-stream wind arc extinguishing lightning protection inter space device comprises: ground connection lateral electrode fixture, ground connection lateral electrode, signal pickup assembly, gas generating unit, insulated enclosure housing, arc extinguishing cavity, hydrophobicity shirt rim, main discharge gap, lead lateral electrode, lead lateral electrode fixture and gas generating unit diverter switch; Described constraint space jet-stream wind arc extinguishing lightning protection inter space is installed in parallel in the line insulator string two ends by fixture, form main discharge gap between ground connection lateral electrode and the lead lateral electrode, the flashover voltage of main discharge gap is less than the flashover voltage of protected insulator string, thereby when being struck by lightning, transmission line preferentially punctures, the power frequency continued flow that continues forms the electrical discharge arc passage between main discharge gap, the protection insulator string is avoided the electric arc calcination; 3 gas generating units are installed in the insulated enclosure housing of constraint space, when thunderbolt takes place in transmission line, the automatic acquired signal of signal pickup assembly also starts gas generating unit, and the high velocity jet air-flow of generation acts on the electric arc in the arc extinguishing cavity and causes impact of collision to be cooled to electric arc and extinguish.
Signal pickup assembly is installed in series in the ground connection lateral electrode, be connected to corresponding gas generating unit respectively, 3 gas generating unit sequence startings, high velocity jet gas shock after gas generating unit starts disconnects the gas generating unit diverter switch, as the necessary condition of next gas jet generating means startup; The hydrophobicity shirt rim of insulation shell outside can effectively prevent the flashover of rainy day generation along the insulation shell surface.
The utility model has remarkable advantages with respect to parallel connection gaps and leakage conductor; when normally moving, circuit do not have afterflow; when taking place, Lightning Over-voltage can start rapidly; reliable arc extinguishing when " dredging " lightning current; and can be with arc extinction before the relay protection of transmission line action; thereby avoid line tripping to take place, thereby protect power equipment effectively, improve power supply reliability.But and repetitive operation, gas generating unit can charged for replacement.Because the time compole that electric arc continues is short, electrode material does not have ablation substantially, can steady in a long-term move.
Description of drawings
Fig. 1 is a structure chart of the present utility model
Fig. 2 is that gas generating unit starts the switching schematic diagram in the utility model
Embodiment
Describe the execution mode of constraint space jet-stream wind arc extinguishing lightning protection inter space of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is a structure chart of the present utility model, this constraint space jet-stream wind arc extinguishing lightning protection inter space device comprises: ground connection lateral electrode fixture (1), ground connection lateral electrode (2), signal pickup assembly (3), gas generating unit (4), insulated enclosure housing (5), arc extinguishing cavity (6), hydrophobicity shirt rim (7), main discharge gap (8), lead lateral electrode (9), lead lateral electrode fixture (10) and gas generating unit diverter switch (11), described constraint space jet-stream wind arc extinguishing lightning protection inter space is installed in parallel in the line insulator string two ends by fixture, it is characterized in that: being used to connect lead and forming the end that the reliable lead lateral electrode fixture (10) that is connected connects main discharge gap (8) with lead is lead lateral electrode (9), the ground connection lateral electrode fixture (1) that reliably is connected with earth electrode, the other end that is connected to main discharge gap (8) is ground connection lateral electrode (2), signal pickup assembly (3) is series at ground connection lateral electrode (2), three gas generating units (4) place near the insulated enclosure housing (5) of ground connection lateral electrode (2) on-fixed end, and insulated enclosure housing (5) outside has hydrophobicity shirt rim (7), and the high velocity jet air-flow that gas generating unit (4) produces vertically acts on the interior electric arc of arc extinguishing cavity (6).
Transmission line is normally in service, the potential difference at these device two ends equals the circuit phase voltage, reach the disruptive critical voltage of this device far away, device can be not breakdown and no current pass through, thereby the signal pickup assembly induction can not start gas generating unit less than lightning current yet; When thunderbolt takes place in transmission line (direct lightning strike or induction thunder); the overvoltage ripple that produces is transferred to the line insulator string place by lead; because the flashover voltage of this device is lower than the flashover voltage of protected insulator string and preferentially punctures; lightning current is leaked into the earth; reduce superpotential amplitude, thereby play the effect of protection insulator string and circuit and electric equipment.Simultaneously, when lightning current flow through conductor, signal pickup assembly induction lightening stream also started initiatively arc extinguishing unit of constraint space air blast rapidly automatically, and moment produces the high velocity jet air-flow.Because this air-flow has high speed, can produce greatly electric arc and impact, the electric arc in the constraint space is elongated when longitudinally sharply being cooled off, and extinguishes thereby can not be maintained until; Simultaneously, the inwall of arc extinguishing cavity adopts gas exhausted material, produces gases at high pressure under the high-temperature electric arc effect, can quicken impact and cooling to electric arc, plays the effect of auxiliary arc extinguishing.
Fig. 2 is that gas generating unit starts the switching schematic diagram in the utility model, and 3 signal pickup assemblies (3) are connected to corresponding 3 gas generating units (4) and formation respectively and trigger in proper order.
Sequence starting when gas generating unit (4) at transmission line thunderbolt takes place, high velocity jet gas shock after gas jet generating means (4) starts disconnects gas generating unit diverter switch (11), as the necessary condition of next gas jet generating means (4) startup.
The utility model has remarkable advantages with respect to parallel connection gaps and leakage conductor, does not have afterflow when circuit normally moves, and can start reliable arc extinguishing in the time of " dredging " lightning current rapidly when Lightning Over-voltage takes place; And has constraint space air blast active arc extinguishing and arc extinguishing cavity produce the gases at high pressure arc extinguishing under the high-temperature electric arc effect double action, thereby make that the duration of electric arc is extremely short, electrode material does not have ablation substantially, can be with arc extinction before relay protection of transmission line action, thus avoid line tripping to take place; Described device can be by adjusting main discharge gap distance to adapt to different electric pressures.Fixed support device can adapt to dissimilar insulator strings, and gas generating unit adopts sequence starting and changes easily, thereby this device can use repeatedly, reaches once mounting, repeatedly the purpose of income.Greatly save investment.And the gas that this device produces is safe from harm compliance with environmental protection requirements to biological, environment.
Although the utility model is described; but foregoing description just for illustrative purposes; the utility model is not limited to above-mentioned specific descriptions in conjunction with the accompanying drawings; those of ordinary skills have the ability that it is not broken away from the various changes of spirit of the present invention, and protection range of the present utility model is defined by the claims.
Claims (2)
1. constraint space jet-stream wind arc extinguishing lightning protection inter space device, this device comprises: ground connection lateral electrode fixture (1), ground connection lateral electrode (2), signal pickup assembly (3), gas generating unit (4), insulated enclosure housing (5), arc extinguishing cavity (6), hydrophobicity shirt rim (7), main discharge gap (8), lead lateral electrode (9), lead lateral electrode fixture (10) and gas generating unit diverter switch (11), described constraint space jet-stream wind arc extinguishing lightning protection inter space is installed in parallel in the line insulator string two ends by fixture, it is characterized in that: being used to connect lead and forming the end that the reliable lead lateral electrode fixture (10) that is connected connects main discharge gap (8) with lead is lead lateral electrode (9), the ground connection lateral electrode fixture (1) that reliably is connected with earth electrode, the other end that is connected to main discharge gap (8) is ground connection lateral electrode (2), signal pickup assembly (3) is series at ground connection lateral electrode (2), three gas generating units (4) place near the insulated enclosure housing (5) of ground connection lateral electrode (2) on-fixed end, and insulated enclosure housing (5) outside has hydrophobicity shirt rim (7), and the high velocity jet air-flow that gas generating unit (4) produces vertically acts on the interior electric arc of arc extinguishing cavity (6).
2. constraint space jet-stream wind arc extinguishing lightning protection inter space device according to claim 1 is characterized in that, three signal pickup assemblies (3) are connected to corresponding three gas generating units (4) and formation respectively and trigger in proper order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200053246U CN202093903U (en) | 2011-01-10 | 2011-01-10 | Constraint space injection air flow arc extinguishing lightning protection gap device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200053246U CN202093903U (en) | 2011-01-10 | 2011-01-10 | Constraint space injection air flow arc extinguishing lightning protection gap device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202093903U true CN202093903U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200053246U Expired - Lifetime CN202093903U (en) | 2011-01-10 | 2011-01-10 | Constraint space injection air flow arc extinguishing lightning protection gap device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202093903U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592757A (en) * | 2011-01-10 | 2012-07-18 | 王巨丰 | Jet stream arc extinguishing and lightning protection gap device in constraint space |
| CN103730834A (en) * | 2012-10-15 | 2014-04-16 | 闫仁宝 | Gas injection type parallel gap device |
| CN104240868A (en) * | 2014-10-11 | 2014-12-24 | 国家电网公司 | Line insulator and horn-shaped gap thereof |
| CN105845289A (en) * | 2016-05-04 | 2016-08-10 | 国网天津市电力公司 | Device for suppressing lightning trip-out rate by stretching discharge flashover path through lightning pulse |
| CN105896451A (en) * | 2016-05-04 | 2016-08-24 | 国网天津市电力公司 | Dual-electrode mutual-pull lightning-stroke trip limiter capable of reducing electric potential gradient |
| US10894610B2 (en) | 2017-06-05 | 2021-01-19 | The Boeing Company | Jet stream lightning protection apparatus, system, and method the same |
| US12163877B2 (en) | 2021-01-28 | 2024-12-10 | The Boeing Company | Capacitance sensing instruments and methods for use |
-
2011
- 2011-01-10 CN CN2011200053246U patent/CN202093903U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592757A (en) * | 2011-01-10 | 2012-07-18 | 王巨丰 | Jet stream arc extinguishing and lightning protection gap device in constraint space |
| CN102592757B (en) * | 2011-01-10 | 2015-10-14 | 王巨丰 | Constraint space jet-stream wind arc extinguishing lightning protection clearance apparatus |
| CN103730834A (en) * | 2012-10-15 | 2014-04-16 | 闫仁宝 | Gas injection type parallel gap device |
| CN103730834B (en) * | 2012-10-15 | 2016-01-27 | 闫仁宝 | Jet-propelled parallel connection clearance device |
| CN104240868A (en) * | 2014-10-11 | 2014-12-24 | 国家电网公司 | Line insulator and horn-shaped gap thereof |
| CN105845289A (en) * | 2016-05-04 | 2016-08-10 | 国网天津市电力公司 | Device for suppressing lightning trip-out rate by stretching discharge flashover path through lightning pulse |
| CN105896451A (en) * | 2016-05-04 | 2016-08-24 | 国网天津市电力公司 | Dual-electrode mutual-pull lightning-stroke trip limiter capable of reducing electric potential gradient |
| CN105896451B (en) * | 2016-05-04 | 2018-03-06 | 国网天津市电力公司 | The mutual pull-type lightning stroke trip limiter for reducing electric potential gradient of bipolar electrode |
| US10894610B2 (en) | 2017-06-05 | 2021-01-19 | The Boeing Company | Jet stream lightning protection apparatus, system, and method the same |
| US12163877B2 (en) | 2021-01-28 | 2024-12-10 | The Boeing Company | Capacitance sensing instruments and methods for use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nanning super Volt Electric Technology Co., Ltd. Assignor: Wang Jufeng Contract record no.: 2012450000054 Denomination of utility model: Jet stream arc extinguishing and lightning protection gap device in constraint space Granted publication date: 20111228 License type: Exclusive License Record date: 20120706 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20111228 Effective date of abandoning: 20151014 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |