CN202720976U - Discharging gap device - Google Patents
Discharging gap device Download PDFInfo
- Publication number
- CN202720976U CN202720976U CN 201220358301 CN201220358301U CN202720976U CN 202720976 U CN202720976 U CN 202720976U CN 201220358301 CN201220358301 CN 201220358301 CN 201220358301 U CN201220358301 U CN 201220358301U CN 202720976 U CN202720976 U CN 202720976U
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- insulator
- arc
- securing member
- discharging gap
- fixed head
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Abstract
The utility model discloses a discharging gap device which is used for preventing the surface flashover of an insulator and can solve the problem that the surface flashover of the insulator under over voltage burns the insulator. According to the technical scheme adopted by the utility model, the discharging gap device comprises a high voltage arcing ring, an arcing horn, a fixation plate, a pressure plate and a fastener; the high voltage arcing ring is arranged at the high voltage end of the insulator; the fixation plate and the pressure plate are arranged at the low voltage end of the insulator; and the arcing horn is connected with the fixation plate through the fastener, and the other end of the arcing horn bends downward to form a discharging gap with the high voltage arcing ring. The discharging gap device can be directly fixed on fittings on both ends of a composite insulator and can be fixed on a cross link plate through mounting holes to be connected with a porcelain insulator. The novel discharging gap device provided by the utility model is simultaneously suitable for the composite insulator and the porcelain insulator, and has the advantages of fast mounting, adjustable gap, stable discharging voltage, and good performances of arc resistance and arc extinction.
Description
Technical field
The utility model relates to a kind of insulator protective device, belongs to electrical protection field in the electric power networking, and particularly a kind of discharging gap apparatus that prevents the insulator surface flashover can solve insulator surface flashover under the overvoltage and the problem of the insulator of burning.
Background technology
In order to improve the safety of transmission line, the flashover that occurs along insulating surface when reducing overvoltage, and flashover causes burning of insulator surface to cause decreasing insulating, the insulator two ends of being everlasting arrange grading ring or arc leading angle, the cost of arc leading angle is low but discharge voltage is unstable and the arc extinguishing ability, discharge to be electric arc easily the burn insulator if uniform ring week footpath is little, if week the footpath greatly then cost is high, and week can reduce alternate dry arcing distance when the footpath is excessive.And traditional arc leading angle or uniform ring can not satisfy the installation requirement that is applicable to porcelain insulator and composite insulator simultaneously.
The utility model content
The utility model overcomes the problem that prior art exists, and a kind of quick for installation, cost is low, the gap is adjustable, discharge voltage is stable, are-tight arc extinction performance is good novel discharging gap apparatus that is suitable for simultaneously composite insulator and porcelain insulator is provided.
The technical solution adopted in the utility model is: a kind of discharging gap apparatus is characterized in that: comprise high-voltage arc strike ring, arcing horn, fixed head, pressing plate and securing member; Described high-voltage arc strike ring profile is the ellipse of an end opening, and opening part is installed in the insulator high-pressure side with two parallel relative installing handles under the effect of securing member, the arc end of the other end of high-voltage arc strike ring for slightly being bent upwards; Described fixed head one end and pressing plate are installed in the low-pressure end of insulator by securing member, the fixed head other end is provided with twin opening (subway); The union end of described arcing horn is provided with multi-joint hole, can selecting as required wherein, two adjacent connection holes are connected and fixed by the twin opening (subway) on securing member and the fixed head, the trick arc end of arcing horn is crooked under the side, consists of a discharging gap with the arc end of described high-voltage arc strike ring.
Wherein, the central authorities of two installing handles of described high-voltage arc strike ring are recessed relatively laterally arc mounting groove, the both sides of mounting groove are provided with the installing hole that passes for securing member, under the effect of securing member, the high-voltage arc strike ring can be directly installed on the two ends gold utensil of composite insulator, also can be installed on the cross yoke plate and connect with porcelain insulator, because high-voltage arc strike ring ovalize, its major axis is consistent with the wire direction and towards the power supply load side during installation, therefore guaranteed alternate enough dry arcing distances, and can impel electric arc under the electric field action of circuit running current, to drift about and extinguish.
Wherein, described fixed head one end is provided with laterally recessed arc mounting groove, the both sides of mounting groove are provided with the installing hole that passes for securing member, described pressing plate central authorities are provided with mounting groove and the installing hole corresponding with mounting groove and installing hole on the fixed head, under the effect of securing member, fixed head is directly installed on the two ends gold utensil of composite insulator or is installed on the cross yoke plate and the porcelain insulator series connection.
Wherein, the other end end of described fixed head is rolled over to a skew back, on twin opening (subway) is arranged; The union end of described arcing horn is provided with multi-joint hole, can selecting as required wherein, two adjacent connection holes are connected and fixed by the multi-joint hole on securing member and the fixed head, the trick arc end of arcing horn is crooked under the side, consist of a discharging gap with the arc end of described high-voltage arc strike ring, securing member is selected positions, hole different in the multi-joint hole, the distance of capable of regulating discharging gap produces electric arc and releases energy and avoid the flash burn insulator to cause its insulating capacity to descend between discharging gap when making overvoltage.
In another scheme, described arcing horn and described fixed head are a single unit system, one end is provided with laterally recessed arc mounting groove and the installing hole of its both sides, and the other end is for recruiting the arc end crooked under the side, consists of a discharging gap with the arc end of described high-voltage arc strike ring.
Have the utility model discharging gap apparatus of said structure characteristics, compared with the prior art, have the following advantages:
(1), the high-voltage arc strike ring of the utility model discharging gap apparatus adopted the elliptical openings design, makes arcing voltage more stable, both made electric arc principle insulator, kept again alternate dry arcing distance.
(2), having adopted adjustable bolt type to fix between the arcing horn of the utility model discharging gap apparatus and the fixed head designs, conveniently adjusts the discharging gap distance, satisfy the gap of different insulative under various environment requirement is set.
(3), the high-voltage arc strike ring of the utility model discharging gap apparatus and the bearing between arcing horn fixed head and the insulator adopted mounting groove and installing hole design simultaneously, can be directly installed on the two ends gold utensil of composite insulator or be installed on the cross yoke plate to connect with porcelain insulator.
Below in conjunction with accompanying drawing the utility model is described further.
Description of drawings
Fig. 1 is that the utility model discharging gap apparatus embodiment is installed in the structural representation on the composite suspension type insulators string;
Fig. 2 is the outward appearance front view of Fig. 1;
Fig. 3 is the outward appearance end view of Fig. 1;
Fig. 4 is that the utility model discharging gap apparatus embodiment is installed in the structural representation on the suspended porcelain insulator string;
Fig. 5 is the schematic diagram behind the utility model discharging gap apparatus embodiment decomposed;
Fig. 6 is the front view of another embodiment of the utility model discharging gap apparatus;
Embodiment
By Fig. 1-Fig. 5 as can be known, the utility model discharging gap apparatus mainly is comprised of high-voltage arc strike ring 1, arcing horn 2, fixed head 3, pressing plate 4, the first securing member 5, the second securing member 6 and the 3rd securing member 7.Described high-voltage arc strike ring 1 profile is the ellipse of an end opening, and opening part is installed in the insulator high-pressure side with two parallel relative installing handles 11 under the effect of the first securing member 5, the arc end 14 of the other end of high-voltage arc strike ring 1 for slightly being bent upwards; Described fixed head 3 one ends and pressing plate 4 are installed in the low-pressure end of insulator by the second securing member 6, fixed head 3 other ends are provided with twin opening (subway) 33; The union end of described arcing horn 2 is provided with multi-joint hole 21, can select as required wherein two adjacent connection Kong Youdi three securing members 7 to connect with twin opening (subway) 33 on the fixed head 3, the trick arc end 22 of arcing horn 2 is crooked under the side, consists of a discharging gap with the arc end 14 of described high-voltage arc strike ring.
Wherein, the central authorities of two installing handles 11 of described high-voltage arc strike ring 1 are recessed relatively laterally arc the first mounting groove 12, the both sides of the first mounting groove 12 are provided with the first installing hole 13 that passes for the first securing member 5, under the effect of the first securing member 5, high-voltage arc strike ring 1 can be directly installed on the two ends gold utensil of composite insulator, also can be installed on the cross yoke plate to connect with porcelain insulator.Because high-voltage arc strike ring 1 ovalize, its major axis is consistent with the wire direction and towards the power supply load side during installation, has therefore guaranteed alternate enough dry arcing distances, and can impel electric arc to drift about under the electric field action of circuit running current and extinguish.
Wherein, described fixed head 3 one ends are provided with recessed laterally arc the second mounting groove 31, the both sides of the second mounting groove 31 are provided with the second installing hole 32 that passes for the second securing member 6, described pressing plate 4 central authorities are provided with three mounting groove 41 and second installing hole 32 and three installing hole 42 corresponding with the second mounting groove 31 on the fixed head, under the effect of the second securing member 6, fixed head 3 can be directly installed on the two ends gold utensil of composite insulator, also can be installed on the cross yoke plate to connect with porcelain insulator.
Wherein, the other end end of described fixed head 3 is rolled over to a skew back, on twin opening (subway) 33 is arranged; The union end of described arcing horn 2 is provided with multi-joint hole 21, can select as required wherein two adjacent connection Kong Youdi three securing members 7 to connect with twin opening (subway) 33 on the fixed head 3, the trick arc end 22 of arcing horn 2 is crooked under the side, consist of a discharging gap with the arc end 14 of described high-voltage arc strike ring, the 3rd securing member 7 is selected different position, hole in the multi-joint hole (21), the distance of capable of regulating discharging gap satisfies the gap of different insulative under various environment requirement is set.
As shown in Figure 6, another embodiment of the utility model discharging gap, its arcing horn 2 and described fixed head 3 are a single unit system, one end is provided with the second installing hole 32 of recessed laterally arc the second mounting groove 31 and its both sides, the other end is for recruiting arc end 22 crooked under the side, consists of a discharging gap with the arc end 14 of described high-voltage arc strike ring 1.
As mentioned above as can be known, the utility model discharging gap apparatus with said structure characteristics, compared with the prior art, have be suitable for simultaneously composite insulator and porcelain insulator, quick for installation, the gap is adjustable, discharge voltage is stable, are-tight arc extinction performance good easy for installation, grip is constant, suppress the wire vibrations and wave, do not hinder wire, the advantage such as non-maintaining.
The utility model discharging gap apparatus only illustrates some preferred embodiments in this manual, is not to its restriction.This professional and technical personnel can structurally make various variations or modification according to the present utility model design and spirit; for example the connection holes with arcing horn one end changes the grooved hole into or changes arcing horn one end into forked type shape, so these must belong to protection range of the present utility model.
Claims (4)
1. a discharging gap apparatus is characterized in that: comprise high-voltage arc strike ring (1), arcing horn (2), fixed head (3), pressing plate (4), the first securing member (5), the second securing member (6) and the 3rd securing member (7);
Described high-voltage arc strike ring (1) profile is the ellipse of an end opening, opening part is with two parallel relative installing handles (11), under the effect of the first securing member (5), be installed in the insulator high-pressure side, the arc end (14) of the other end of high-voltage arc strike ring (1) for slightly being bent upwards; Described fixed head (3) one ends and pressing plate (4) are installed in the low-pressure end of insulator by the second securing member (6), fixed head (3) other end is provided with twin opening (subway) (33); The union end of described arcing horn (2) is provided with multi-joint hole (21), select as required the twin opening (subway) (33) on adjacent in the multi-joint hole (21) two holes and the fixed head (3) to be connected and fixed by the 3rd securing member (7), the trick arc end (22) of arcing horn (2) is crooked under the side, consists of a discharging gap with the arc end (14) of described high-voltage arc strike ring.
2. by a kind of discharging gap apparatus claimed in claim 1, it is characterized in that: the central authorities of two installing handles (11) of described high-voltage arc strike ring (1) are recessed relatively laterally arc the first mounting groove (12), the both sides of the first mounting groove (12) are provided with the first installing hole (13) that passes for the first securing member (5), under the effect of the first securing member (5), high-voltage arc strike ring (1) is directly installed on the two ends gold utensil of composite insulator or is installed on the cross yoke plate and connects with porcelain insulator.
3. by a kind of discharging gap apparatus claimed in claim 1, it is characterized in that: described fixed head (3) one ends are provided with recessed laterally arc the second mounting groove (31), the both sides of the second mounting groove (31) are provided with the second installing hole (32) that passes for the second securing member (6), described pressing plate (4) central authorities are provided with three mounting groove (41) corresponding with the second mounting groove (31) on the fixed head and the second installing hole (32) and the 3rd installing hole (42), under the effect of the second securing member (6), fixed head (3) is directly installed on the two ends gold utensil of composite insulator or is installed on the cross yoke plate and connects with porcelain insulator.
4. by a kind of discharging gap apparatus claimed in claim 1, it is characterized in that: described arcing horn (2) and described fixed head (3) are a single unit system, one end is provided with second installing hole (32) of recessed laterally arc the second mounting groove (31) and its both sides, the other end is for recruiting arc end (22) crooked under the side, consists of a discharging gap with the arc end (14) of described high-voltage arc strike ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358301 CN202720976U (en) | 2012-07-24 | 2012-07-24 | Discharging gap device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358301 CN202720976U (en) | 2012-07-24 | 2012-07-24 | Discharging gap device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202720976U true CN202720976U (en) | 2013-02-06 |
Family
ID=47622790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220358301 Expired - Fee Related CN202720976U (en) | 2012-07-24 | 2012-07-24 | Discharging gap device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202720976U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751056A (en) * | 2012-07-24 | 2012-10-24 | 固力发集团有限公司 | Discharge gap device |
| CN105336454A (en) * | 2015-11-21 | 2016-02-17 | 国网江西省电力公司吉安供电分公司 | Discharge gap of 35kV line insulator string |
| CN106054006A (en) * | 2016-08-08 | 2016-10-26 | 国网湖南省电力公司 | Low-voltage arc starting and gap distance adjustable power-frequency freewheeling test apparatus and method |
-
2012
- 2012-07-24 CN CN 201220358301 patent/CN202720976U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751056A (en) * | 2012-07-24 | 2012-10-24 | 固力发集团有限公司 | Discharge gap device |
| CN105336454A (en) * | 2015-11-21 | 2016-02-17 | 国网江西省电力公司吉安供电分公司 | Discharge gap of 35kV line insulator string |
| CN106054006A (en) * | 2016-08-08 | 2016-10-26 | 国网湖南省电力公司 | Low-voltage arc starting and gap distance adjustable power-frequency freewheeling test apparatus and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20160724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |