CN206947059U - A kind of 220kV single ball-type parallel connection clearance devices used for transmission line - Google Patents
A kind of 220kV single ball-type parallel connection clearance devices used for transmission line Download PDFInfo
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- CN206947059U CN206947059U CN201720887240.7U CN201720887240U CN206947059U CN 206947059 U CN206947059 U CN 206947059U CN 201720887240 U CN201720887240 U CN 201720887240U CN 206947059 U CN206947059 U CN 206947059U
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- ring body
- arc bar
- clamping plate
- parallel connection
- transmission line
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Abstract
The utility model embodiment, which discloses a kind of 220kV single ball-type parallel connection clearance devices used for transmission line, includes ring body, support bar, clamping plate and trick arc bar, opening is provided with the ring body, the trick arc bar includes long trick arc bar and short trick arc bar, described short trick arc bar one end is fixedly connected with the ring body other end and is fixedly connected with the clamping plate, described long trick arc bar one end is fixedly connected with the clamping plate other end and is provided with striking ball, the short trick arc bar, clamping plate and the long diameter for recruiting arc bar along the ring body are set, and with the opening parallel, described support bar one end is fixedly connected with the ring body, the other end is vertical with the midpoint of the clamping plate to be fixedly connected.The utility model embodiment significantly improves that thunderbolt connects sudden strain of a muscle rate and electric arc dredges success rate by increasing ring body on conventional parallel gap on the premise of insulator chain dielectric strength is not reduced, and is advantageous to protect the insulator chain in work.
Description
Technical field
It the utility model is related to transmission line of electricity lightning protection field, more particularly to a kind of 220kV single ball-types used for transmission line
Parallel connection clearance device.
Background technology
With the increase of transmission line of electricity rated voltage, the lightning stroke trip accident counted both at home and abroad accounts for the ratio phase of total number of accident
It should improve.Power frequency arc meeting calcination, the surface insulation layer of damage insulator chain caused by insulator chain flashover caused by thunder and lightning, sternly
Weight situation possibly even cause insulator chain occur it is disrumpent feelings, fall string, significantly impact the safe operation of transmission line of electricity.
Existing Lightning Protection on Power Transmission Lines measure is mainly to pacify on the transmission circuit insulator string for frequently suffering from thunderbolt
Fill parallel connection gaps.The principle of insulator parallel connection gaps lightning protection is：In insulator chain both ends parallel connection a pair of metal electrodes (also known as
Recruit arc rod or arc leading angle), portable protective gaps are formed, the distance of usual portable protective gaps is less than the string length of insulator chain.Overhead transmission line meets with
During thunderbolt, by the dielectric strength of parallel connection gaps is less than the insulator that it is protected, parallel connection gaps can be made first in lightning fault
First puncture, and produce afterflow electric arc.The electric arc being burning in the presence of magnetic field force caused by short circuit current, can along
Gap electrode is gradually moved into the arcing point on top and finally extinguished.Parallel connection gaps are by making electric arc be moved to the direction away from insulator
It is dynamic, so as to reach the purpose of insulator chain on protection transmission line of electricity.
However, impulsive discharge can be caused preferentially to occur in parallel connection gaps the short circuit of insulation distance by upper/lower electrode
Between electrode, make subsequently to trigger power frequency continued flow electric arc, the root of arc up and down of power frequency continued flow electric arc can be stablized on parallel connection gaps gold utensil
It is mobile, but because there is more than 2m 220kV and above transmission line of electricity the air gap, the complexity of long arc motion causes electric arc to dredge
Success rate is not high, is possible to run to insulator surface under the influence of wind-force, reduces guarantor of the parallel connection gaps to insulator chain
Protect effect.
Utility model content
To overcome problem present in correlation technique, following technical scheme is disclosed：
A kind of 220kV single ball-type parallel connection clearance devices used for transmission line, including：Ring body, support bar, clamping plate and trick arc bar,
Wherein,
Opening is provided with the ring body；
The trick arc bar includes long trick arc bar and short trick arc bar, and it is another that described short trick arc bar one end is fixedly connected with the ring body
End is fixedly connected with the clamping plate, and described long trick arc bar one end is fixedly connected with the clamping plate other end and is provided with striking ball；It is described short
Recruit arc bar, clamping plate and the long diameter for recruiting arc bar along the ring body to set, and with the opening parallel；
Described support bar one end is fixedly connected with the ring body, and the other end is vertical with the midpoint of the clamping plate to be fixedly connected.
Alternatively, plane is parallel with plane where the ring body where the clamping plate.
Alternatively, it is provided with the clamping plate for fixed bolt.
Alternatively, the long trick arc bar intersects with the ring body, and the long trick arc bar and plane where the ring body
Angle is 30 °.
Alternatively, the short trick arc bar and the angle of plane where the ring body are 30 °.
Alternatively, the opening angle of the opening is 30 °.
Alternatively, the external diameter of the ring body is 50-60cm, and the difference of internal-and external diameter is 5cm.
Alternatively, trick arc the bar long 70cm, internal diameter 4cm.
Alternatively, the ring body includes aluminium ring.
Alternatively, the striking ball includes galvanizing steel ball.
220kV single ball-type parallel connection clearance devices used for transmission line that the utility model embodiment provides include ring body, support
Bar, clamping plate and trick arc bar, by increasing ring body on conventional parallel gap, on the premise of insulator chain dielectric strength is not reduced
Significantly improve that thunderbolt connects sudden strain of a muscle rate and electric arc dredges success rate, be advantageous to protect the insulator chain in work, while the setting of bolt
It is easy to actual installation operation, ensures the fastness of device installation.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, below by the required accompanying drawing used in embodiment
It is briefly described, it should be apparent that, for those of ordinary skills, do not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of knot for 220kV single ball-type parallel connection clearance devices used for transmission line that the utility model embodiment provides
Structure schematic diagram；
Fig. 2 is a kind of side for 220kV single ball-type parallel connection clearance devices used for transmission line that the utility model embodiment provides
Depending on schematic diagram.
Illustrate：
1- ring bodies, 2- support bars, 3- bolts, 4- recruit arc bar, 5- striking balls, 6- clamping plates.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the utility model, below in conjunction with this reality
With the accompanying drawing in new embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that
Described embodiment is only the utility model part of the embodiment, rather than whole embodiments.
Referring to Fig. 1, a kind of 220kV single ball-type parallel connection clearance devices used for transmission line provided for the utility model embodiment
Structural representation, as shown in figure 1, the 220kV single ball-type parallel connection gaps dresses used for transmission line that the utility model embodiment provides
Put, including：Ring body 1, support bar 2, clamping plate 6 and trick arc bar 4.
The setting of ring body 1 can effectively optimize the internal field of gold utensil side, reduce the corona loss of circuit.Ring body 1 uses
Hollow aluminum ring structure, the external diameter of ring body 1 are 50-60cm, and inside and outside caliber differs 5cm, the insulator that can be installed according to specific needs
Size chosen.The weight of parallel connection gaps is alleviated using aluminium ring, reduces the load-bearing pressure of shaft tower.
Opening is provided with ring body 1, the angle of opening is 30 °, and guarantee, which can lead to Lightning Over-voltage, recruits arc ball 5, from
And realize the protection to insulator chain.
It is provided with ring body 1 and recruits arc bar 4, wherein, recruit arc bar 4 to include long trick arc bar and short trick arc bar, short trick arc bar one end
It is fixedly connected with ring body 1, the other end is fixedly connected with clamping plate 6, long to recruit that arc bar one end is fixedly connected with clamping plate 6, the other end sets striking ball
5, it is long to recruit arc bar to be fixedly connected with the intersection of ring body 1.Material is both saved in the design of single arc ignition bar, mitigates the weight of parallel connection gaps
Amount, and can improve the protective success ratio to insulator；The clamping plate 6 that the center of ring body 1 employs strap bolt 3 designs, and is easy to parallel connection
Gap is installed in the metallic support rod or wire clamp of insulator.In order that the parallel connection gaps Mass Distribution of installation on the insulator is equal
It is even, it is short to recruit arc bar, clamping plate 6 and the long diameter for recruiting arc bar along ring body 1 to set, and with opening parallel (due to short trick arc bar and length
Recruit arc bar to be required to have contact portion with ring body 1, and can ensure that Lightning Over-voltage can uniformly be led to and recruit arc ball 5, therefore
It is short to recruit arc bar, clamping plate 6 and grow trick arc bar need and opening parallel).
Burning can be gone out in striking ball 5 by recruiting arc bar 4 to lead to Lightning Over-voltage after striking ball 5, therefore striking ball 5 employs
The galvanizing steel ball of resistance to ablation, likewise, in order to mitigate the weight of parallel connection gaps, striking ball 5 is hollow ball, a diameter of 10cm.
Multiple metal branch for being used for fixed bolt 3, clamping plate 6 being first clipped in insulator when mounted are provided with clamping plate 6
On strut or wire clamp, then it is fixed with bolt 3.
Arc bar 4 and clamping plate 6 is recruited to use light-weight conductor (such as aluminium) to mitigate the weight of parallel connection gaps, wherein, recruit arc
Bar 4 is hollow bar structure, and hollow stem internal diameter is 4cm, recruits 4 long 70cm of arc bar.Due to recruiting the lighter weight of arc bar 4 and clamping plate 6, it is
Ensure to recruit arc bar 4 and clamping plate 6 and the firm connection of ring body 1, the utility model embodiment also includes support bar 2, support bar 2 one
End is fixedly connected with ring body 1, and the other end is vertical with the midpoint of clamping plate 6 to be fixedly connected.
Referring to Fig. 2, a kind of 220kV single ball-type parallel connection clearance devices used for transmission line provided for the utility model embodiment
Schematic side view, as shown in Fig. 2 the plane where clamping plate 6 is parallel with the plane where ring body 1, arc bar and length are recruited due to short
Arc bar is recruited to be all connected with clamping plate 6 and ring body 1, therefore, short trick arc bar recruits arc bar certain angle to be present with the place plane of ring body 1 with long
Degree, is analyzed by big data, and when angle is 30 °, protection effect is best.
220kV single ball-type parallel connection clearance devices used for transmission line that the utility model embodiment provides when mounted treat by basis
The different erection sequences of protection insulator type are slightly different, specific as follows：
For composite insulator, when mounted, the grading ring for dispatching from the factory subsidiary by insulator chain first is removed, and then incite somebody to action this again
The bolt 3 for 220kV single ball-type parallel connection clearance devices used for transmission line that utility model embodiment provides is backed out, by the clamping plate of both sides
6 are arranged on the metallic support rod of insulator or wire clamp, finally fix bolt 3.
For glass and ceramic insulator, when mounted, directly bolt 3 is backed out, clamping plate 6 is then arranged on insulator
Wire clamp both sides, finally bolt 3 is fixed.
In installation process, it is necessary to pay attention to recruiting arc bar 4 should fair line road installed, the bulb of striking ball 5, will towards load-side
Greatly improve the protecting effect to insulator chain；Ring body 1 is open to be installed towards tower window, can effectively be reduced and is first oriented to tower window hair
The possibility of exhibition, reduce thunderbolt risk of flashback.
220kV single ball-type parallel connection clearance devices used for transmission line that the utility model embodiment provides include ring body, support
Bar, clamping plate and trick arc bar, by increasing ring body on conventional parallel gap, on the premise of insulator chain dielectric strength is not reduced
Significantly improve that thunderbolt connects sudden strain of a muscle rate and electric arc dredges success rate, be advantageous to protect the insulator chain in work, while the setting of bolt
It is easy to actual installation operation, ensures the fastness of device installation.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
Individual entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operate it
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that process, method, article or equipment including a series of elements not only include those
Key element, but also the other element including being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element in the process including the key element, method, article or equipment also be present.
Described above is only specific embodiment of the present utility model, is made skilled artisans appreciate that or realizing this
Utility model.A variety of modifications to these embodiments will be apparent to one skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.
Therefore, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and original disclosed herein
The reason most wide scope consistent with features of novelty.
Above-described the utility model embodiment does not form the restriction to scope of protection of the utility model.
Claims (10)
- A kind of 1. 220kV single ball-type parallel connection clearance devices used for transmission line, it is characterised in that including：Ring body (1), support bar (2), clamping plate (6) and trick arc bar (4), wherein,Opening is provided with the ring body (1)；The trick arc bar (4) includes long trick arc bar and short trick arc bar, and it is another that described short trick arc bar one end is fixedly connected with the ring body (1) One end is fixedly connected with the clamping plate (6), and described long trick arc bar one end is fixedly connected with the clamping plate (6) other end and is provided with striking ball (5)；It is described it is short recruit arc bar, clamping plate (6) and the long diameter for recruiting arc bar along the ring body (1) to set, and with the opening parallel；Described support bar (2) one end is fixedly connected with the ring body (1), the other end fixed company vertical with the midpoint of the clamping plate (6) Connect.
- 2. 220kV single ball-type parallel connection clearance devices used for transmission line as claimed in claim 1, it is characterised in that the clamping plate (6) plane is parallel with plane where the ring body (1) where.
- 3. 220kV single ball-type parallel connection clearance devices used for transmission line as claimed in claim 1, it is characterised in that the clamping plate (6) it is provided with for fixed bolt (3).
- 4. 220kV single ball-type parallel connection clearance devices used for transmission line as claimed in claim 1, it is characterised in that the long trick Arc bar intersects with the ring body (1), and the long trick arc bar and the angle of plane where the ring body (1) are 30 °.
- 5. 220kV single ball-type parallel connection clearance devices used for transmission line as claimed in claim 1, it is characterised in that the short trick Arc bar and the angle of plane where the ring body (1) are 30 °.
- 6. 220kV single ball-type parallel connection clearance devices used for transmission line as claimed in claim 1, it is characterised in that the opening Opening angle be 30 °.
- 7. 220kV single ball-type parallel connection clearance devices used for transmission line as claimed in claim 1, it is characterised in that the ring body (1) external diameter is 50-60cm, and the difference of internal-and external diameter is 5cm.
- 8. 220kV single ball-type parallel connection clearance devices used for transmission line as claimed in claim 1, it is characterised in that the trick arc Bar (4) long 70cm, internal diameter 4cm.
- 9. 220kV single ball-type parallel connection clearance devices used for transmission line as claimed in claim 1, it is characterised in that the ring body (1) aluminium ring is included.
- 10. 220kV single ball-type parallel connection clearance devices used for transmission line as claimed in claim 1, it is characterised in that the striking Ball (5) includes galvanizing steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720887240.7U CN206947059U (en) | 2017-07-20 | 2017-07-20 | A kind of 220kV single ball-type parallel connection clearance devices used for transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720887240.7U CN206947059U (en) | 2017-07-20 | 2017-07-20 | A kind of 220kV single ball-type parallel connection clearance devices used for transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206947059U true CN206947059U (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720887240.7U Active CN206947059U (en) | 2017-07-20 | 2017-07-20 | A kind of 220kV single ball-type parallel connection clearance devices used for transmission line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230534A (en) * | 2017-07-20 | 2017-10-03 | 云南电网有限责任公司电力科学研究院 | A kind of 220kV single ball-type parallel connection clearance devices used for transmission line |
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2017
- 2017-07-20 CN CN201720887240.7U patent/CN206947059U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230534A (en) * | 2017-07-20 | 2017-10-03 | 云南电网有限责任公司电力科学研究院 | A kind of 220kV single ball-type parallel connection clearance devices used for transmission line |
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