CN102751056A - Discharge gap device - Google Patents
Discharge gap device Download PDFInfo
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- CN102751056A CN102751056A CN2012102559177A CN201210255917A CN102751056A CN 102751056 A CN102751056 A CN 102751056A CN 2012102559177 A CN2012102559177 A CN 2012102559177A CN 201210255917 A CN201210255917 A CN 201210255917A CN 102751056 A CN102751056 A CN 102751056A
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- insulator
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- fixed head
- mounting groove
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Abstract
The invention discloses a discharge gap device for preventing surface flashover of an insulator, which can solve the problem that the surface flashover of the insulator is cuased under the overvoltage to burn the insulator. The technical scheme of the invention is as follows: the discharge gap device comprises a high voltage arc initiating ring, an arcing horn, a pressing plate and a fastening piece; the high voltage arc initiating ring is arranged at a high voltage end of the insulator; a fixing plate and the pressing plate are arranged at a low voltage end of the insulator; and the arcing horn is connected with the fixing plate by the fastening piece, and the other end of the arcing horn bends downwards to form a discharge gap with the high voltage arc initiating ring. The discharge gap device not only can be directly fixed on fittings of two ends of a composite insulator, but also can be fixed on a cross yoke plate by installing holes to be connected with a ceramic insulator. The invention provides the novel discharge gap device adaptive to the composite insulator and the ceramic insulator and having rapidness in installation, adjustable gap, stable discharge voltage and good arc resistance and arc quenching performance.
Description
Technical field
The present invention relates to a kind of insulator protective device, belong to electrical protection field in the electric power networking, particularly a kind of discharging gap device 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 takes place along insulating surface when reducing overvoltage, and flashover causes burning of insulator surface to cause decreasing insulating, the insulator two ends of being everlasting are provided with grading ring or arc leading angle; The cost of arc leading angle low but discharge voltage instability and arc extinguishing ability; Discharge to be electric arc burn the easily 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 directly 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.
Summary of the invention
The present invention overcomes the problem that prior art exists, provide a kind of be suitable for simultaneously composite insulator and porcelain insulator quick for installation, cost is low, adjustable gaps, discharge voltage is stablized, are-tight arc extinction performance is good novel discharging gap device.
The technical scheme that the present invention adopts is: a kind of discharging gap device is characterized in that: comprise high-voltage arc strike ring, arcing horn, fixed head, pressing plate and securing member; Said high-voltage arc strike ring profile is the ellipse of an end opening, and opening part has two parallel relative installing handles, under the effect of securing member, is installed in the insulator high-pressure side, the arc end of the other end of high-voltage arc strike ring for slightly being bent upwards; Said fixed head one end and pressing plate are installed in the low-pressure end of insulator through securing member, and the fixed head other end is provided with twin opening (subway); The union end of said arcing horn is provided with the holes that join more; Can selecting wherein as required, two adjacent couplet 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 side, with discharging gap of arc end formation of described high-voltage arc strike ring.
Wherein, The central authorities of two installing handles of said high-voltage arc strike ring are relative recessed laterally arc mounting groove, and the both sides of mounting groove are provided with the installing hole that supplies securing member to pass, 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 lead 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, Said fixed head one end is provided with recessed laterally arc mounting groove; The both sides of mounting groove are provided with the installing hole that supplies securing member to pass; Said pressing plate central authorities be provided with fixed head on mounting groove and corresponding mounting groove of installing hole and installing hole, 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 said fixed head is rolled over to a skew back, on twin opening (subway) is arranged; The union end of said arcing horn is provided with the holes that join more; Can selecting wherein as required, two adjacent couplet holes are connected and fixed by the many couplet hole on securing member and the fixed head; The trick arc end of arcing horn is crooked under side, and with discharging gap of arc end formation of described high-voltage arc strike ring, securing member is selected the different positions, hole in the hole that join more; Can adjust the distance of discharging gap, between discharging gap, produce electric arc when making overvoltage and release energy and avoid the flash burn insulator to cause its insulating capacity to descend.
In another scheme; Said arcing horn and said fixed head are a single unit system; One end is provided with the recessed laterally arc mounting groove and the installing hole of its both sides, and the other end is for recruiting the arc end crooked under side, with discharging gap of arc end formation of described high-voltage arc strike ring.
Have the discharging gap device of the present invention of said structure characteristics, compared with techniques arranged, have the following advantages with oneself:
(1), the high-voltage arc strike ring of discharging gap device of the present invention adopted the elliptical openings design, makes arcing voltage more stable, both made electric arc principle insulator, kept alternate dry arcing distance again.
(2), adopted adjustable bolt type Fixed Design between the arcing horn of discharging gap device of the present invention and the fixed head, convenient adjustment discharging gap distance satisfies the gap of different insulative under various environment requirement is set.
(3), the high-voltage arc strike ring of discharging gap device of the present invention 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 present invention is done and to further describe.
Description of drawings
Fig. 1 is installed in the structural representation on the compound suspension insulator string for discharging gap device embodiment of the present invention;
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 installed in the structural representation on the suspended porcelain insulator string for discharging gap device embodiment of the present invention;
Fig. 5 is the sketch map after discharging gap device embodiment of the present invention partly decomposes;
Fig. 6 is the front view of another embodiment of discharging gap device of the present invention;
Embodiment
Can know that by Fig. 1-Fig. 5 discharging gap device of the present invention mainly is made up of high-voltage arc strike ring 1, arcing horn 2, fixed head 3, pressing plate 4, first securing member 5, second securing member 6 and the 3rd securing member 7.Said high-voltage arc strike ring 1 profile is the ellipse of an end opening, and opening part has two parallel relative installing handles 11, under the effect of first securing member 5, is 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; Said fixed head 3 one ends and pressing plate 4 are installed in the low-pressure end of insulator through second securing member 6, and fixed head 3 other ends are provided with twin opening (subway) 33; The union end of said arcing horn 2 is provided with the holes 21 that join more; Can select wherein two adjacent couplet Kong Youdi three securing members 7 to connect as required with twin opening (subway) 33 on the fixed head 3; The trick arc end 22 of arcing horn 2 is crooked under side, with discharging gap of arc end 14 formations of described high-voltage arc strike ring.
Wherein, The central authorities of two installing handles 11 of said high-voltage arc strike ring 1 are relative recessed laterally arc first mounting groove 12; The both sides of first mounting groove 12 are provided with first installing hole 13 that supplies first securing member 5 to pass; Under the effect of 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 lead direction and towards the power supply load side during installation, has 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, Said fixed head 3 one ends are provided with recessed laterally arc second mounting groove 31; The both sides of second mounting groove 31 are provided with second installing hole 32 that supplies second securing member 6 to pass, said pressing plate 4 central authorities be provided with fixed head on second mounting groove, 31 corresponding the 3rd mounting grooves 41 and second installing hole 32 and the 3rd installing hole 42, under the effect of 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 said fixed head 3 is rolled over to a skew back, on twin opening (subway) 33 is arranged; The union end of said arcing horn 2 is provided with the holes 21 that join more; Can select wherein two adjacent couplet Kong Youdi three securing members 7 to connect as required with twin opening (subway) 33 on the fixed head 3; The trick arc end 22 of arcing horn 2 is crooked under side, and with discharging gap of arc end 14 formations of described high-voltage arc strike ring, the 3rd securing member 7 is selected the different positions, hole in the holes (21) that join more; Can adjust the distance of discharging gap, satisfy the gap of different insulative under various environment requirement is set.
Can know by Fig. 6; Another embodiment of discharging gap of the present invention; Its arcing horn 2 is a single unit system with said fixed head 3; One end is provided with second installing hole 32 of recessed laterally arc second mounting groove 31 and its both sides, and the other end is for recruiting arc end 22 crooked under side, with discharging gap of arc end 14 formations of described high-voltage arc strike ring 1.
Can know as stated; Discharging gap device of the present invention with said structure characteristics; With oneself compared with techniques is arranged, have be suitable for simultaneously that composite insulator and porcelain insulator, quick for installation, adjustable gaps, discharge voltage are stable, are-tight arc extinction performance good easy for installation, grip is constant, suppress lead shakes and wave, do not hinder lead, advantage such as non-maintaining.
Discharging gap device of the present invention is only explained some preferred embodiments in this manual, is not to its restriction.This professional and technical personnel according to the present invention inventive concept and spirit can structurally make various variations or modification; 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 scope of the present invention.
Claims (4)
1. a discharging gap device is characterized in that: comprise high-voltage arc strike ring (1), arcing horn (2), fixed head (3), pressing plate (4), first securing member (5), second securing member (6) and the 3rd securing member (7);
Said high-voltage arc strike ring (1) profile is the ellipse of an end opening; Opening part has two parallel relative installing handles (11); Under the effect of 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; Said fixed head (3) one ends and pressing plate (4) are installed in the low-pressure end of insulator through second securing member (6), and fixed head (3) other end is provided with twin opening (subway) (33); The union end of said arcing horn (2) is provided with the holes (21) that join more; Select the twin opening (subway)s (33) that join on adjacent in the holes (21) two holes and the fixed head (3) to be connected and fixed as required by the 3rd securing member (7) more; The trick arc end (22) of arcing horn (2) is crooked under side, with discharging gap of arc end (14) formation of described high-voltage arc strike ring.
2. by the described a kind of discharging gap device of claim 1; It is characterized in that: the central authorities of two installing handles (11) of said high-voltage arc strike ring (1) are relative recessed laterally arc first mounting groove (12); The both sides of first mounting groove (12) are provided with first installing hole (13) that supplies first securing member (5) to pass; Under the effect of 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 the described a kind of discharging gap device of claim 1; It is characterized in that: said fixed head (3) one ends are provided with recessed laterally arc second mounting groove (31); The both sides of second mounting groove (31) are provided with second installing hole (32) that supplies second securing member (6) to pass; Said pressing plate (4) central authorities be provided with fixed head on corresponding the 3rd mounting groove of second mounting groove (31) (41) and second installing hole (32) and the 3rd installing hole (42); Under the effect of 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 the described a kind of discharging gap device of claim 1; It is characterized in that: said arcing horn (2) and said fixed head (3) are a single unit system; One end is provided with second installing hole (32) of recessed laterally arc second mounting groove (31) and its both sides; The other end is for recruiting arc end (22) crooked under side, with discharging gap of arc end (14) formation of described high-voltage arc strike ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102559177A CN102751056A (en) | 2012-07-24 | 2012-07-24 | Discharge gap device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102559177A CN102751056A (en) | 2012-07-24 | 2012-07-24 | Discharge gap device |
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| CN102751056A true CN102751056A (en) | 2012-10-24 |
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| CN2012102559177A Pending CN102751056A (en) | 2012-07-24 | 2012-07-24 | Discharge gap device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280278A (en) * | 2013-06-07 | 2013-09-04 | 国家电网公司 | Discharging gap device |
| CN103337314A (en) * | 2013-06-07 | 2013-10-02 | 国家电网公司 | Discharge gap device with voltage-equalizing rings |
| KR101574078B1 (en) | 2014-12-26 | 2015-12-04 | 제룡산업 주식회사 | Fixing tool of lightning arrester for a power-transmission line |
| CN105484551A (en) * | 2016-01-24 | 2016-04-13 | 常熟市谷雷特机械产品设计有限公司 | Iron tower for erecting high voltage transmission line |
| CN105680370A (en) * | 2016-03-31 | 2016-06-15 | 国网辽宁省电力有限公司辽阳供电公司 | Discharge gap live-line installation and dismounting method |
| CN109065290A (en) * | 2018-09-06 | 2018-12-21 | 国家电网有限公司 | The high altitude localities alternating current circuit 500kV duplex I type band parallel connection gaps suspension insulator |
| CN112585701A (en) * | 2018-08-21 | 2021-03-30 | 西门子能源全球有限公司 | Insulator with terminal connector and connecting device and device for reducing overvoltage |
Citations (5)
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| US5552566A (en) * | 1993-12-20 | 1996-09-03 | Reliable Bethea Power Products | Apparatus for preventing coronal discharge |
| JP2004158225A (en) * | 2002-11-05 | 2004-06-03 | Ngk Insulators Ltd | Lightning insulator device |
| TW594797B (en) * | 2000-09-18 | 2004-06-21 | Ngk Insulators Ltd | Lightning protective insulator set |
| CN201243186Y (en) * | 2007-11-30 | 2009-05-20 | 北京市电力公司 | Parallel connection clearance device for V-shaped insulator string of high-tension overhead line |
| CN202720976U (en) * | 2012-07-24 | 2013-02-06 | 固力发集团有限公司 | Discharging gap device |
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2012
- 2012-07-24 CN CN2012102559177A patent/CN102751056A/en active Pending
Patent Citations (5)
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| US5552566A (en) * | 1993-12-20 | 1996-09-03 | Reliable Bethea Power Products | Apparatus for preventing coronal discharge |
| TW594797B (en) * | 2000-09-18 | 2004-06-21 | Ngk Insulators Ltd | Lightning protective insulator set |
| JP2004158225A (en) * | 2002-11-05 | 2004-06-03 | Ngk Insulators Ltd | Lightning insulator device |
| CN201243186Y (en) * | 2007-11-30 | 2009-05-20 | 北京市电力公司 | Parallel connection clearance device for V-shaped insulator string of high-tension overhead line |
| CN202720976U (en) * | 2012-07-24 | 2013-02-06 | 固力发集团有限公司 | Discharging gap device |
Non-Patent Citations (1)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280278A (en) * | 2013-06-07 | 2013-09-04 | 国家电网公司 | Discharging gap device |
| CN103337314A (en) * | 2013-06-07 | 2013-10-02 | 国家电网公司 | Discharge gap device with voltage-equalizing rings |
| CN103337314B (en) * | 2013-06-07 | 2016-02-24 | 国家电网公司 | A kind of discharging gap apparatus with grading ring |
| KR101574078B1 (en) | 2014-12-26 | 2015-12-04 | 제룡산업 주식회사 | Fixing tool of lightning arrester for a power-transmission line |
| CN105484551A (en) * | 2016-01-24 | 2016-04-13 | 常熟市谷雷特机械产品设计有限公司 | Iron tower for erecting high voltage transmission line |
| CN105484551B (en) * | 2016-01-24 | 2017-12-05 | 浙江江山博奥电气有限公司 | A kind of steel tower for being used to set up high voltage electricity transmission conductive wire |
| CN105680370A (en) * | 2016-03-31 | 2016-06-15 | 国网辽宁省电力有限公司辽阳供电公司 | Discharge gap live-line installation and dismounting method |
| CN112585701A (en) * | 2018-08-21 | 2021-03-30 | 西门子能源全球有限公司 | Insulator with terminal connector and connecting device and device for reducing overvoltage |
| CN109065290A (en) * | 2018-09-06 | 2018-12-21 | 国家电网有限公司 | The high altitude localities alternating current circuit 500kV duplex I type band parallel connection gaps suspension insulator |
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Application publication date: 20121024 |