CN105337170A - Spark gap protection device - Google Patents
Spark gap protection device Download PDFInfo
- Publication number
- CN105337170A CN105337170A CN201510843885.6A CN201510843885A CN105337170A CN 105337170 A CN105337170 A CN 105337170A CN 201510843885 A CN201510843885 A CN 201510843885A CN 105337170 A CN105337170 A CN 105337170A
- Authority
- CN
- China
- Prior art keywords
- field electrode
- low
- spark gap
- voltage electrode
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/04—Housings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/20—Means for starting arc or facilitating ignition of spark gap
- H01T1/22—Means for starting arc or facilitating ignition of spark gap by the shape or the composition of the electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
Landscapes
- Spark Plugs (AREA)
Abstract
The invention discloses a spark gap protection device which comprises a spark gap protection unit and a box. The spark gap protection unit is arranged inside the box and comprises a spark plug, a low-voltage electrode, a high-voltage electrode, an insulation board, a nut, an adjusting bolt, an insulator and a trigger box. The low-voltage electrode is arranged on the insulation board. The spark plug is fixed to the low-voltage electrode through the insulation board. The high-voltage electrode is fixed into the box through the nut and the adjusting bolt. The low-voltage electrode and the high-voltage electrode are located at the same horizontal position, and a gap is reserved between the high-voltage electrode and the low-voltage electrode. Accordingly, dust is not likely to be accumulated on the electrodes, and discharging safety and reliability between the high-voltage electrode and the low-voltage electrode are ensured. The phenomenon that due to the fact that two electrodes of a traditional protection device are perpendicularly placed, dust is accumulated on an electrode at the lower end, a gap between a high-voltage electrode and a low-voltage electrode becomes smaller, and then spark gap triggering discharging safety is affected is avoided.
Description
Technical field
The invention belongs to technical field of relay protection, particularly relate to a kind of spark gap protective device.
Background technology
In nearly decades, the power industry of China has had swift and violent development, and present China electrical network has entered the new stage of high-voltage AC transmission.At a distance, the stability problem day of Large Copacity delivery of electrical energy is aobvious outstanding; series capacitor bank compensation technique is in global extensive use; namely Capacitor banks is connected; the overvoltage to capacitor may suffer now is needed to protect; to guarantee when dangerous voltage will appear in series capacitor; can in time series capacitor bank bypass, the method for this overvoltage protection has multiple, and wherein spark gap protection is one of main method of overvoltage protection.
At present, spark gap protective device many employings high and low pressure electrode vertical is to putting triggering mode, and such electrode easily accumulates dust, the clearance distance triggered is changed, can not ensure reliability and the fail safe of seal clearance triggering discharges between two electrodes.
Summary of the invention
A kind of spark gap protective device is provided, to solve the problems of the technologies described above in the embodiment of the present invention.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses following technical scheme:
A kind of spark gap protective device, described device comprises spark gap protected location and casing, and wherein, described spark gap protected location is arranged in described casing;
Described spark gap protected location comprises spark plug, low-field electrode, high-field electrode, insulation board, nut, adjustment bolt, insulator and triggering case, described low-field electrode is arranged on described insulation board, described spark plug is fixed on described low-field electrode by insulation board, described high-field electrode is bolted in described casing by described nut and adjustment, described low-field electrode and described high-field electrode is positioned at same level position and gap is left in centre;
Described triggering case is located at the bottom in described casing, and described insulator to be arranged on described triggering case and to be connected with described high-field electrode, and described insulation board is fixed on described triggering case.
Preferably, the local of described low-field electrode and described high-field electrode is arc-shaped structure.
Preferably, described triggering case comprises trigger board, and described trigger board is arranged on the inside of described triggering case.
Preferably, described device also comprises insulation protective board, described casing is also provided with insulated screw, the row of extraction and Cross Recess Head Screw, described insulation protective board is connected with high-field electrode with described low-field electrode by insulated screw, and described insulation protective board is connected with described triggering case by described Cross Recess Head Screw.
Preferably, described insulation protective board is provided with several louvres.
Preferably, described low-field electrode and high-field electrode are made up of tungsten-copper alloy material.
The spark gap protective device that this programme provides has following beneficial effect:
A kind of spark gap protective device that this programme provides; be applied in series capacitor bank; because high-field electrode and low-field electrode are arranged on same level position; horizontally disposed triggering mode can be adopted; and the relative local of high and low electrode is arc-shaped structure; therefore, each electrode not easily accumulates dust, ensure that the safety and reliability of high and low pressure electricity interpolar discharge.Traditional protective device is avoided to place due to two electrode vertical, and the electrode accumulation dust being positioned at lower end made, cause the gap smaller between high pressure and low-field electrode, and then affect spark gap triggering discharges safety.
A kind of spark gap protective device that this programme provides, by arranging insulation protective board, playing insulation protection effect to spark gap device, ensureing the fail safe of this plant running.In addition, drawing row can be connected with external capacitor, adds the applicability of device; The heat-sinking capability arranging this device of increase of louvre, can reduce the temperature of box house fast, and observes the degree of injury of casing internal electrode, is convenient to carry out examination and maintenance to device inside.
A kind of spark gap protective device that this programme provides; spark gap distance can be regulated by adjustment bolt; namely the clearance distance between high pressure, low-field electrode; and then according to different electric pressures adjustment spark gap distance, the precision of series capacitor bank spark gap protective device can be also improved simultaneously.
A kind of spark gap protective device that this programme provides; wherein; low-field electrode and high-field electrode are made up of tungsten-copper alloy materials processing; tungsten-copper alloy hardness and machinability are far away higher than graphite; and the electrode of tungsten-copper alloy not only has the feature of high temperature resistant, resistance to galvanic corrosion; but also it is good to have electrical and thermal conductivity performance, the feature of rapid heat dissipation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of spark gap protective device that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the another kind of spark gap protective device that Fig. 2 provides for the embodiment of the present invention.
Embodiment
Technical scheme in the present invention is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.
See Fig. 1, be the structural representation of a kind of spark gap protective device that the embodiment of the present invention provides,
A kind of spark gap protective device 200, described device 200 comprises spark gap protected location and casing 100, and wherein, described spark gap protected location is arranged in described casing 100;
Wherein, described spark gap protected location comprises spark plug 1, low-field electrode 2, high-field electrode 3, insulation board 4, nut 5, adjustment bolt 6, insulator 7 and triggers case 8, and low-field electrode 2 is arranged on insulation board 4, spark plug 1 is fixed on low-field electrode 2 by insulation board 4, high-field electrode 3 is bolted in casing 100 by nut 5 and adjustment, low-field electrode 2 and high-field electrode 3 is positioned at same level position and gap d is left in centre;
Described triggering case 8 is located at the bottom in casing 100, and insulator 7 is arranged on and triggers on case 8 and be connected with high-field electrode 3, and insulation board 4 is fixed on and triggers on case 8.
Wherein, the end of described high-field electrode 3 is connected with bronze medal, and nut 5 is M16 nut, and nut 5 is connected with high-field electrode 3 by this bronze medal with adjustment bolt, and fixing described high-field electrode; Low-field electrode is used for being fixed on insulation board 4 by screw bolt and nut.
Preferably, one end that described low voltage motor 2 is relative with high-field electrode 3 is arc-shaped structure.
Preferably, described triggering case comprises trigger board 10, and this trigger board 10 is arranged on the inside of triggering case 8.
A kind of spark gap protective device that the present embodiment provides; be applied in series capacitor bank; because high-field electrode and low-field electrode are arranged on same level position; horizontally disposed triggering mode can be adopted; and the relative local of high and low electrode is arc-shaped structure; therefore, each electrode not easily accumulates dust, ensure that the safety and reliability of high and low pressure electricity interpolar discharge.Traditional protective device is avoided to place due to two electrode vertical, and the electrode accumulation dust being positioned at lower end made, cause the gap smaller between high pressure and low-field electrode, and then affect spark gap triggering discharges safety.
In addition; a kind of spark gap protective device that the present embodiment provides; this device comprises adjustment bolt; this adjustment bolt can regulate the clearance distance between high and low pressure electrode; i.e. spark gap distance; and then according to different electric pressures adjustment spark gap distance, the precision of series capacitor bank spark gap protective device can be also improved simultaneously.
Particularly, adjust spark gap distance to comprise:
First M16 nut 5 is rotated in the counterclockwise direction, M16 nut 5 is unclamped; Secondly, adjust by adjustment bolt 5 clearance distance discharged between high and low pressure electrode, clockwise adjusting play diminishes, and counterclockwise adjusting play becomes large; Finally, when spark gap distance adjusts to suitable distance, M16 nut 5 is locked clockwise.
In another embodiment, in said apparatus, described triggering case 8 comprises trigger board 9, and trigger board 9 is arranged on the inside of triggering case 8, and trigger board 9 is for providing triggering firing pulse for low-field electrode 2.
As shown in Figure 2; in the above-described embodiments; described spark gap protective device 200 also comprises insulation protective board 10; insulation protective board 10 is arranged on the surrounding of spark gap protective device 200; casing 100 is also provided with insulated screw 11, draws row 12 and Cross Recess Head Screw 13; insulation protective board 10 is connected with high-field electrode 3 with low-field electrode 2 by insulated screw 11, and insulation protective board 10 is connected with triggering case 8 by Cross Recess Head Screw 13.
Wherein, preferably; described insulation protective board is provided with several louvres 14; on the upper surface that this louvre is arranged on insulation protective board 10 more and bottom face; for the heat produced during spark gap action is dispersed in the middle of air; in addition, the degree of injury of casing internal electrode can also be observed by these louvres after each spark gap protection.
A kind of spark gap protective device that this programme provides, by arranging insulation protective board, playing insulation protection effect to spark gap device, ensureing the fail safe of this plant running.In addition, drawing row can be connected with external capacitor, adds the applicability of device; The heat-sinking capability arranging this device of increase of louvre, can reduce the temperature of box house fast, and observes the degree of injury of casing internal electrode, is conducive to carrying out examination and maintenance to this device inside.
In an additional preferred embodiment, in said apparatus, described low-field electrode 2 and high-field electrode 3 are made up of tungsten-copper alloy materials processing, because tungsten-copper alloy hardness and machinability are far away higher than graphite, and the electrode of tungsten-copper alloy not only has the feature of high temperature resistant, resistance to galvanic corrosion, but also it is good to have electrical and thermal conductivity performance, the feature of rapid heat dissipation.
The above is only the specific embodiment of the present invention, those skilled in the art is understood or realizes the present invention.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a spark gap protective device, is characterized in that, described device comprises spark gap protected location and casing, and wherein, described spark gap protected location is arranged in described casing;
Described spark gap protected location comprises spark plug, low-field electrode, high-field electrode, insulation board, nut, adjustment bolt, insulator and triggering case, described low-field electrode is arranged on described insulation board, described spark plug is fixed on described low-field electrode by insulation board, described high-field electrode is bolted in described casing by described nut and adjustment, described low-field electrode and described high-field electrode is positioned at same level position and gap is left in centre;
Described triggering case is located at the bottom in described casing, and described insulator to be arranged on described triggering case and to be connected with described high-field electrode, and described insulation board is fixed on described triggering case.
2. device according to claim 1, is characterized in that, the local of described low-field electrode and described high-field electrode is arc-shaped structure.
3. device according to claim 2, is characterized in that, described triggering case comprises trigger board, and described trigger board is arranged on the inside of described triggering case.
4. device according to claim 3, it is characterized in that, described device also comprises insulation protective board, described casing is also provided with insulated screw, the row of extraction and Cross Recess Head Screw, described insulation protective board is connected with high-field electrode with described low-field electrode by insulated screw, and described insulation protective board is connected with described triggering case by described Cross Recess Head Screw.
5. device according to claim 4, is characterized in that, described insulation protective board is provided with several louvres.
6. the device according to any one of claim 1-5, is characterized in that, described low-field electrode and high-field electrode are made up of tungsten-copper alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843885.6A CN105337170B (en) | 2015-11-26 | 2015-11-26 | spark gap protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843885.6A CN105337170B (en) | 2015-11-26 | 2015-11-26 | spark gap protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105337170A true CN105337170A (en) | 2016-02-17 |
| CN105337170B CN105337170B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510843885.6A Active CN105337170B (en) | 2015-11-26 | 2015-11-26 | spark gap protection device |
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| Country | Link |
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| CN (1) | CN105337170B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821432A (en) * | 2019-10-24 | 2020-02-21 | 中国石油大学(华东) | Pulse discharge switch structure for downhole operation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003086326A (en) * | 2001-09-11 | 2003-03-20 | Mitsubishi Materials Corp | Surge absorber chip |
| CN204290038U (en) * | 2014-12-31 | 2015-04-22 | 保定天威恒通电气有限公司 | A kind of convenient portable protective gaps device regulated |
| CN105071225A (en) * | 2015-08-27 | 2015-11-18 | 桂林理工大学 | Spark-gap switch with adjustable gas tightness gap |
| CN205141365U (en) * | 2015-11-26 | 2016-04-06 | 云南电网有限责任公司电力科学研究院 | Spark gap protection device |
-
2015
- 2015-11-26 CN CN201510843885.6A patent/CN105337170B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003086326A (en) * | 2001-09-11 | 2003-03-20 | Mitsubishi Materials Corp | Surge absorber chip |
| CN204290038U (en) * | 2014-12-31 | 2015-04-22 | 保定天威恒通电气有限公司 | A kind of convenient portable protective gaps device regulated |
| CN105071225A (en) * | 2015-08-27 | 2015-11-18 | 桂林理工大学 | Spark-gap switch with adjustable gas tightness gap |
| CN205141365U (en) * | 2015-11-26 | 2016-04-06 | 云南电网有限责任公司电力科学研究院 | Spark gap protection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821432A (en) * | 2019-10-24 | 2020-02-21 | 中国石油大学(华东) | Pulse discharge switch structure for downhole operation |
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| Publication number | Publication date |
|---|---|
| CN105337170B (en) | 2017-01-25 |
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