CN205140645U - Direct current ground connection is parallelly connected clearance of insulator chain for polar line - Google Patents
Direct current ground connection is parallelly connected clearance of insulator chain for polar line Download PDFInfo
- Publication number
- CN205140645U CN205140645U CN201521020930.XU CN201521020930U CN205140645U CN 205140645 U CN205140645 U CN 205140645U CN 201521020930 U CN201521020930 U CN 201521020930U CN 205140645 U CN205140645 U CN 205140645U
- Authority
- CN
- China
- Prior art keywords
- insulator string
- arcing horn
- blow
- out unit
- parallel connection
- 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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Links
- 239000012212 insulator Substances 0.000 title claims abstract description 47
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 239000011787 zinc oxide Substances 0.000 claims description 4
- 238000010891 electric arc Methods 0.000 abstract description 4
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 abstract description 3
- 230000005404 monopole Effects 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model discloses a direct current ground connection is parallelly connected clearance of insulator chain for polar line, beckon arc angle, insulator chain on, beckon arc angle and link plate down including last link plate, the unit of putting off arc, the upward link plate and the unit of putting off arc are connected simultaneously to the insulator chain upper end, the one end that insulator chain was kept away from to the unit of putting off arc is connected with the streamlined trick arc angle that goes up of extending to the lower part, the non -linear resistor that the unit of putting off arc constitutes for the resistance card, link plate and lower arc angle are down connected simultaneously to the insulator chain lower extreme, under beckon the arc angle to be streamline structure to it extends upwards to beckon the arc angle direction, the unit of putting off arc beckons on, arc angle and lower arc angle to constitute parallelly connected clearance, the utility model discloses can be when the big earthed return of monopole move, after producing the direct current afterflow, thunderbolt earthing pole circuit turn -offs electric arc rapidly, play the purpose of protection insulator chain and earthing pole circuit.
Description
Technical field
The utility model relates to insulator string parallel connection gaps field, is specifically related to a kind of DC earthing polar curve insulator string parallel connection gaps.
Background technology
Current existing direct current grounding pole line insulator string parallel connection gaps, because direct current system most time is in bipolar metallic return operational mode, the earth current that direct current grounding pole circuit passes through is very little, if ground electrode circuit is impacted by overvoltage in the case, the electric arc of continuation after parallel connection gaps punctures, can not be produced; If but ground electrode circuit works in monopolar ground return operational mode, ground electrode circuit electric current is excessive, if ground electrode circuit is struck by lightning in this case, or because switching impulse causes insulator string parallel connection to puncture, puncturing rear electric arc cannot automatic distinguishing, and ground electrode circuit will inevitably be caused to damage.
Utility model content
The utility model provide a kind of can the DC earthing polar curve insulator string parallel connection gaps of rapid blow-out after lightning impulse terminates.
The technical solution adopted in the utility model is: a kind of DC earthing polar curve insulator string parallel connection gaps, comprises upper hanging plate, blow-out unit, upper arcing horn, insulator string, lower arcing horn and lower link plate; Described insulator string upper end connects upper hanging plate and blow-out unit simultaneously; Blow-out unit is connected with away from one end of insulator string the streamlined upper arcing horn that lower portion extends; Blow-out unit is the nonlinear resistance that resistor disc is formed; Insulator string lower end connects lower link plate and lower arcing horn simultaneously; Lower arcing horn is streamlined structure, and upwards arcing horn direction extends; Blow-out unit, upper arcing horn and lower arcing horn form parallel connection gaps.
Further, the vertical line distance between described upper arcing horn and lower arcing horn is less than or equal to 85% of insulator string length.
Further, described upper arcing horn is the segmental arc to downward-extension near blow-out unit one end, and the other end is the segmental arc upwards extended.
Further, described lower arcing horn is straightway near blow-out unit one end, and the other end is the straightway upwards extended.
Further, described upper arcing horn is provided with spheric electrode away from blow-out unit one end; Lower arcing horn is provided with spheric electrode away from blow-out unit one end.
Further, described resistor disc is zinc oxide resistance sheet.
Further, described blow-out unit is outside equipped with full skirt shape silica gel outer.
Further, described silica gel outer every sheet umbrella tangent plane is isosceles triangle.
Further, described upper hanging plate is UB type link plate, and lower link plate is socket-clevis eye.
Further, described upper hanging plate is all connected with insulator string by QP link with blow-out unit.
The beneficial effects of the utility model are:
(1) after the utility model can make ground electrode circuit be struck by lightning when monopolar ground return runs, direct current afterflow can self-extinguish;
(2) the utility model is easy to install, and structure is simple, practical;
(3) the utility model arcing horn top is provided with spheric electrode, and not fragile, the life-span is high.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1-upper hanging plate, 2-blow-out unit, the upper arcing horn of 3-, 4-QP link, 5-insulator string, link plate under 6-, arcing horn under 7-.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
A kind of DC earthing polar curve insulator string parallel connection gaps, comprises upper hanging plate 1, blow-out unit 2, upper arcing horn 3, insulator string 5, lower arcing horn 7 and lower link plate 6; Described insulator string 5 upper end connects upper hanging plate 1 and blow-out unit 2 simultaneously; Blow-out unit 2 is connected with away from one end of insulator string 5 the streamlined upper arcing horn 3 that lower portion extends; The nonlinear resistance that blow-out unit 2 is formed for resistor disc; Insulator string 5 lower end connects lower link plate 6 and lower arcing horn 7 simultaneously; Lower arcing horn 7 is streamlined structure, and upwards arcing horn 3 direction extends; ; Blow-out unit 2, upper arcing horn 3 and lower arcing horn 7 form parallel connection gaps; During use, upper hanging plate 1, blow-out unit 2 and upper arcing horn 3 are all fixedly connected with shaft tower crosspiece end gold utensil; Lower link plate 6, lower arcing horn 7 are all fixedly connected with ground electrode circuit wire gold utensil with insulator string 5 lower end; When thunderbolt ground electrode circuit wire cause air gap puncture with blow-out unit 2 conducting after, blow-out unit 2 presents low-resistance characteristic, and after lightning discharge terminates, blow-out unit 2 recovers high resistant characteristic, and direct current afterflow is cut off, and ensures that ground electrode circuit recovers normal and runs.
Further, the vertical line distance between described upper arcing horn 3 and lower arcing horn 7 is less than or equal to 85% of insulator string 5 length; The distance of air gap can adjust according to the size of current of DC earthing polar curve and experience.
Further, described upper arcing horn 3 is the segmental arc to downward-extension near blow-out unit 2 one end, and the other end is the segmental arc upwards extended; Upper arcing horn 3 is set to arc and arcing horn top can be avoided to occur the situation of point discharge, and is damaged by upper arcing horn 3.
Further, described lower arcing horn 7 is straightway near blow-out unit 2 one end, and the other end is the straightway upwards extended.
Further, described upper arcing horn 3 is provided with spheric electrode away from blow-out unit 2 one end; Lower arcing horn 7 is provided with spheric electrode away from blow-out unit 2 one end; Arranging spheric electrode is also the situation avoiding arcing horn to occur point discharge, thus protective device is not damaged.
Further, described resistor disc is zinc oxide resistance sheet; High (maximum>=the 800J/cm of zinc oxide resistance sheet unit thermal capacitance
3), super high power (can arbitrarily integrated combination), volume little (with same power metal resistance ratio comparatively volume only have 15%), moment through-current capability be oxidized by force, or not corrosion-resistant, the life-span long, high temperature resistant (maximum operating temperature can reach 500 DEG C), noninductive, resistivity is controlled (resistivity 10
-2~ 10
2Ω m).
Further, described blow-out unit 2 is outside equipped with full skirt shape silica gel outer; Arrange silica gel outer to seal blow-out unit 2, protection blow-out unit 2 is not contaminated and damage; Outer surface is set to the displacement that full skirt shape can increase electric charge.
Further, described silica gel outer every sheet umbrella tangent plane is isosceles triangle.
Further, described upper hanging plate 1 is UB type link plate, and lower link plate 6 is socket-clevis eye; UB type link plate is suitable for and being fixedly connected with of shaft tower crosspiece gold utensil more; Socket-clevis eye is applicable to fixing between insulator string 5 and ground electrode circuit wire gold utensil.
Further, described upper hanging plate 1 is all connected with insulator string 5 by QP link 4 with blow-out unit 2.
The utility model when monopolar ground return runs, can turn off electric arc rapidly after thunderbolt ground electrode circuit produces direct current afterflow, plays the object of protection insulator string 5 and ground electrode circuit.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. a DC earthing polar curve insulator string parallel connection gaps, is characterized in that: comprise upper hanging plate (1), blow-out unit (2), upper arcing horn (3), insulator string (5), lower arcing horn (7) and lower link plate (6); Described insulator string (5) upper end connects upper hanging plate (1) and blow-out unit (2) simultaneously; Blow-out unit (2) is connected with away from one end of insulator string (5) the streamlined upper arcing horn (3) extended downwards; The nonlinear resistance that blow-out unit (2) is formed for resistor disc; Insulator string (5) lower end connects lower link plate (6) and lower arcing horn (7) simultaneously; Lower arcing horn (7) is streamlined structure, and upwards arcing horn (3) direction extends; Blow-out unit (2), upper arcing horn (3) and lower arcing horn (7) form parallel connection gaps.
2. a kind of DC earthing polar curve insulator string parallel connection gaps according to claim 1, is characterized in that: the vertical line distance between described upper arcing horn (3) and lower arcing horn (7) is less than or equal to 85% of insulator string (5) length.
3. a kind of DC earthing polar curve insulator string parallel connection gaps according to claim 1, is characterized in that: described upper arcing horn (3) is the segmental arc to downward-extension near blow-out unit (2) one end, and the other end is the segmental arc upwards extended.
4. a kind of DC earthing polar curve insulator string parallel connection gaps according to claim 1, is characterized in that: described lower arcing horn (7) is straightway near blow-out unit (2) one end, and the other end is the straightway upwards extended.
5. a kind of DC earthing polar curve insulator string parallel connection gaps according to claim 1, is characterized in that: described upper arcing horn (3) is provided with spheric electrode away from blow-out unit (2) one end; Lower arcing horn (7) is provided with spheric electrode away from blow-out unit (2) one end.
6. a kind of DC earthing polar curve insulator string parallel connection gaps according to claim 1, is characterized in that: described resistor disc is zinc oxide resistance sheet.
7. a kind of DC earthing polar curve insulator string parallel connection gaps according to claim 1, is characterized in that: described blow-out unit (2) is outside equipped with full skirt shape silica gel outer.
8. a kind of DC earthing polar curve insulator string parallel connection gaps according to claim 7, is characterized in that: described silica gel outer every sheet umbrella tangent plane is isosceles triangle.
9. a kind of DC earthing polar curve insulator string parallel connection gaps according to claim 1, is characterized in that: described upper hanging plate (1) is UB type link plate, and lower link plate (6) is socket-clevis eye.
10. a kind of DC earthing polar curve insulator string parallel connection gaps according to claim 1, is characterized in that: described upper hanging plate (1) is all connected with insulator string (5) by QP link (4) with blow-out unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020930.XU CN205140645U (en) | 2015-12-10 | 2015-12-10 | Direct current ground connection is parallelly connected clearance of insulator chain for polar line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020930.XU CN205140645U (en) | 2015-12-10 | 2015-12-10 | Direct current ground connection is parallelly connected clearance of insulator chain for polar line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205140645U true CN205140645U (en) | 2016-04-06 |
Family
ID=55626414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521020930.XU Active CN205140645U (en) | 2015-12-10 | 2015-12-10 | Direct current ground connection is parallelly connected clearance of insulator chain for polar line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205140645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082652A (en) * | 2019-04-29 | 2019-08-02 | 电力规划总院有限公司 | Choosing method, the device of arcing horn and insulator chain in overhead transmission line |
-
2015
- 2015-12-10 CN CN201521020930.XU patent/CN205140645U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082652A (en) * | 2019-04-29 | 2019-08-02 | 电力规划总院有限公司 | Choosing method, the device of arcing horn and insulator chain in overhead transmission line |
| CN110082652B (en) * | 2019-04-29 | 2021-09-03 | 电力规划总院有限公司 | Selection method and device for arcing horn and insulator string in overhead transmission line |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |