CN104681217A - Insulator lightning protection device with adjustable parallel gap - Google Patents
Insulator lightning protection device with adjustable parallel gap Download PDFInfo
- Publication number
- CN104681217A CN104681217A CN201310635572.2A CN201310635572A CN104681217A CN 104681217 A CN104681217 A CN 104681217A CN 201310635572 A CN201310635572 A CN 201310635572A CN 104681217 A CN104681217 A CN 104681217A
- Authority
- CN
- China
- Prior art keywords
- insulator
- pawl
- lightning protection
- protection device
- adjustable parallel
- 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.)
- Pending
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 41
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 22
- 239000010931 gold Substances 0.000 claims description 22
- 229910052737 gold Inorganic materials 0.000 claims description 22
- 210000000078 claw Anatomy 0.000 abstract 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Abstract
The invention discloses an insulator lightning protection device with an adjustable parallel gap. The insulator lightning protection device comprises an insulator, wherein a grounding side electrode and a lead side electrode are fixed at the two ends of the insulator; the grounding side electrode and the lead side electrode are claws with at least three claw fingers; the claw fingers on both sides of the insulator are the same in quantity, and are arranged correspondingly. The insulator lightning protection device with the adjustable parallel gap is simple in structure, and is convenient to install. The claw fingers of the lead side electrode or the grounding side electrode are movably connected, and the claw fingers move along a plane where the axis of the insulator is positioned, so that the distance between the grounding side electrode and the lead side electrode can be adjusted in order to adapt to insulators of different lengths.
Description
Technical field
The present invention relates to a kind of lightning protection device for power overhead network, be specifically related to the insulator lightning protection device of adjustable parallel connection gaps.
Background technology
Aerial power transmission line lightning protection is the problem that work about electric power person makes great efforts to inquire into always.In recent years, the fault caused by thunder and lightning in electrical network still accounts for significant proportion, comprises the power frequency continued flow after lightning stroke flashover and damages insulator and gold utensil thereof, cause line accident.Lightning fault remains one of key factor affecting power grid security.
The existing lightning protection measures of aerial power transmission line, as set up into thunder line, reducing pole tower ground resistance, reinforced insulation etc., its core concept improves the lightning withstand level of circuit as much as possible, reduces tripping rate with lightning strike.These lightning protection measuress can be summarized as " blocking type " lightning protection mode.For the actual conditions of the early stage Net Frame of Electric Network weakness of China, (oil) switch performance difference, lightning protection aforesaid way is suitable.In recent years, China's electrical network is fast-developing, and grid structure is more and more stronger; Along with technological progress, transformer station uses SF6 switch in a large number, relaying protection Microcomputer; reclosing device obtains general screening and uses; providing favourable condition for developing new lightning protection mode, if now still only continue to use original lightning protection mode, having seemed conservative and unilateral.In addition, install the mode that line type enters thunder device, cost is very high, can not generally adopt.
Application number is the patent overhead circuit parallel gap lightning protection device of 200420001291.8, and the parallel gap lightning protection device structure disclosed is simple, easy for installation, and electrode material and diameter can tolerate high current arc repeatedly calcination.But due to ground side and side of wire electrode non-adjustable, so the insulator differed for length, because the space between two electrodes is comparatively large, can not play a protective role.
Summary of the invention
Non-adjustable for the gap of parallel gap lightning protection device in prior art, the problem of two interelectrode distances can not be regulated.The invention provides the insulator lightning protection device of the simple adjustable parallel connection gaps of a kind of structure.
To achieve these goals, the technical solution used in the present invention is: the insulator lightning protection device of adjustable parallel connection gaps, comprise insulator, the two ends dead earth lateral electrode of insulator and side of wire electrode, described ground side electrode and side of wire electrode are the pawl that at least three pawls refer to, the identical and corresponding setting of the pawl index of insulator both sides.
Described pawl exponent bits 3, one of 5,7.
The described pawl of leading lateral electrode refers to that pawl refers to the planar movement along insulator axis place, to adjust the distance between ground side electrode and side of wire electrode in order to be flexibly connected.
Described flexible connection, pawl refers to also cut with scissors dead with side of wire gold utensil by bolted splice.
Described flexible connection, pawl refers to be connected by bellows with side of wire gold utensil.
Described flexible connection, pawl refers to for umbrella rib type is connected between the jack shaft of side of wire gold utensil, and pawl refers to that, for umbrella cover support rib, gold utensil jack shaft is umbrella bar.
Described ground side electrode pawl refers to for being flexibly connected, and pawl refers to also cut with scissors dead with ground side gold utensil by bolted splice.
Described ground side electrode pawl refers to that pawl refers to be connected by bellows with ground side gold utensil in order to be flexibly connected.
Described ground side electrode pawl refers to that pawl refers between the jack shaft of ground side gold utensil for umbrella rib type is connected in order to be flexibly connected.
Beneficial effect is: the core of " parallel connection gaps lightning protection " mode allows circuit to have certain tripping rate with lightning strike, but reclosing can be successful, without permanent fault. in parallel with insulator by the gap adopting ground side electrode, side of wire electrode to be formed, connect and dodge thunder and lightning and dredge power frequency arc.The parallel connection gaps that ground side electrode, side of wire electrode are formed and the ground side of insulator string and connecting of line side, make them have identical current potential respectively, when overhead transmission line is struck by lightning, first portable protective gaps will discharge.
Adjustable parallel gap lightning protection device structure of the present invention is simple, easy for installation; the pawl of side of wire electrode or ground side electrode refers to for being flexibly connected; pawl refers to the planar movement along insulator axis place; to adjust the distance between earth connection lateral electrode and side of wire electrode, the insulator for different length all can use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is flexible connection of the present invention is two bolt arrangement schematic diagram;
Fig. 3 is flexible connection of the present invention is bi-bellow structural representation.
Embodiment
As shown in Figure 1, the insulator lightning protection device of adjustable parallel connection gaps, comprises insulator 1, the two ends dead earth lateral electrode 3 of insulator and side of wire electrode 2, described ground side electrode 3 and side of wire electrode 2 refer to at least three pawls, the identical and corresponding setting of the pawl index of insulator both sides.Described pawl exponent bits 3, one of 5,7.The pawl of described side of wire electrode 2 refers to that pawl refers to the planar movement along insulator axis place, to adjust the distance between ground side electrode 3 and side of wire electrode 2 in order to be flexibly connected.
As Fig. 2, described flexible connection, pawl to refer to side of wire gold utensil hinged by bolt 4 and cuts with scissors dead.Described ground side electrode 3 pawl refers to for being flexibly connected, and pawl refers to also cut with scissors dead with ground side gold utensil by bolted splice.
As Fig. 3, described flexible connection, pawl refers to be connected by bellows 5 with side of wire gold utensil.Described ground side electrode 3 pawl refers to that pawl refers to be connected by bellows with ground side gold utensil in order to be flexibly connected.
Described flexible connection, pawl refers to for umbrella rib type is connected between the jack shaft of side of wire gold utensil, and pawl refers to that, for umbrella cover support rib, gold utensil jack shaft is umbrella bar, described ground side electrode 3 pawl refers to that pawl refers between the jack shaft of ground side gold utensil for umbrella rib type is connected in order to be flexibly connected.
Claims (9)
1. the insulator lightning protection device of adjustable parallel connection gaps, comprise insulator (1), two ends dead earth lateral electrode (3) of insulator and side of wire electrode (2), it is characterized in that: described ground side electrode (3) and side of wire electrode (2) refer to at least three pawls, the identical and corresponding setting of the pawl index of insulator both sides.
2. want the insulator lightning protection device of the adjustable parallel connection gaps described in 1 according to right, it is characterized in that: described pawl exponent bits 3, one of 5,7.
3. the insulator lightning protection device of the adjustable parallel connection gaps described in 2 is wanted according to right, it is characterized in that: the pawl of described side of wire electrode (2) refers to for being flexibly connected, pawl refers to the planar movement along insulator axis place, to adjust the distance between ground side electrode (3) and side of wire electrode (2).
4. want the insulator lightning protection device of the adjustable parallel connection gaps described in 3 according to right, it is characterized in that: described flexible connection, pawl to refer to side of wire gold utensil hinged by bolt (4) and cuts with scissors dead.
5. want the insulator lightning protection device of the adjustable parallel connection gaps described in 3 according to right, it is characterized in that: described flexible connection, pawl refers to be connected by bellows (5) with side of wire gold utensil.
6. want the insulator lightning protection device of the adjustable parallel connection gaps described in 3 according to right, it is characterized in that: described flexible connection, pawl refers to for umbrella rib type is connected between the jack shaft of side of wire gold utensil, and pawl refers to that, for umbrella cover support rib, gold utensil jack shaft is umbrella bar.
7. want the insulator lightning protection device of the adjustable parallel connection gaps described in 4 according to right, it is characterized in that: described ground side electrode (3) pawl refers to that, for being flexibly connected, pawl to refer to ground side gold utensil hinged by bolt (4) and cut with scissors extremely.
8. want the insulator lightning protection device of the adjustable parallel connection gaps described in 5 according to right, it is characterized in that: described ground side electrode (3) pawl refers to that pawl refers to be connected by bellows (5) with ground side gold utensil in order to be flexibly connected.
9. want the insulator lightning protection device of the adjustable parallel connection gaps described in 6 according to right, it is characterized in that: described ground side electrode (3) pawl refers to that pawl refers between the jack shaft of ground side gold utensil for umbrella rib type is connected in order to be flexibly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635572.2A CN104681217A (en) | 2013-12-03 | 2013-12-03 | Insulator lightning protection device with adjustable parallel gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635572.2A CN104681217A (en) | 2013-12-03 | 2013-12-03 | Insulator lightning protection device with adjustable parallel gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104681217A true CN104681217A (en) | 2015-06-03 |
Family
ID=53316142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310635572.2A Pending CN104681217A (en) | 2013-12-03 | 2013-12-03 | Insulator lightning protection device with adjustable parallel gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104681217A (en) |
-
2013
- 2013-12-03 CN CN201310635572.2A patent/CN104681217A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |