CN107564637A - A kind of overhead transmission line insulator - Google Patents
A kind of overhead transmission line insulator Download PDFInfo
- Publication number
- CN107564637A CN107564637A CN201710745915.9A CN201710745915A CN107564637A CN 107564637 A CN107564637 A CN 107564637A CN 201710745915 A CN201710745915 A CN 201710745915A CN 107564637 A CN107564637 A CN 107564637A
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- China
- Prior art keywords
- contact rod
- upper contact
- cavity
- transmission line
- tripe
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Abstract
The invention discloses a kind of overhead transmission line insulator, including insulation shell with cavity, upper contact rod and it is used for and upper contact rod forms the lower contact rod of discharging gap；Upper contact rod and lower contact rod are located along the same line, and discharging gap is located in cavity；The bottom of upper contact rod and the top of lower contact rod are respectively provided with a ball discharge, and two ball discharge clampings form discharging gap.The present invention is placed in the upper contact rod of formation discharging gap and lower contact rod in the cavity of insulator, it is ensured that the cleaning of point of discharge, so as to ensure that the reliability of discharge prevention action, and reduces space-consuming.
Description
Technical field
The invention belongs to power overhead network technical field, and in particular to a kind of overhead transmission line insulator.
Background technology
Overhead line can produce power frequency continued flow after being struck by lightning, so-called power frequency continued flow, be exactly overhead line after overhead line is struck by lightning
Thunder and lightning arc is just produced between metal cross arm, this thunder and lightning arc life span is very short, but it is formd between overhead line and cross-arm
Conductive channel, the power supply of overhead line is set to occur over the ground（Cross-arm）Short circuit, this short circuit current are referred to as power frequency continued flow（Be after lightning current it
Power current afterwards）, for power frequency continued flow, cross-arm or grounding of pole resistance are bigger, and power frequency continued flow is smaller, easier cutout.
Patent document CN201000796Y discloses a kind of lightning protection pillar insulator, is mainly closed by insulating shield, clamp aluminium
Gold utensil, composite insulator, starting rod and lower steel pin etc. form.Its main feature：（1）When thunderbolt occurs, starting rod and lower steel
Causing umbrella network to discharge between pin, form short-channel, the power frequency arc to continue, which is moved between starting rod and lower steel pin, to burn, with
Protect wire from burn.Because starting rod gets around full skirt and adjusts to optimal discharge gap, discharge effect is more preferable, and prevents from burning out
Insulator umbrella.But this kind of lightning protection pillar insulator still suffers from following weak point：Outside the point of discharge of starting rod and lower steel pin
Dew, easily accumulates dirt, influences discharging action.
The content of the invention
The present invention provides a kind of overhead transmission line insulator built in discharging gap.
Realizing the technical scheme of the object of the invention is：A kind of overhead transmission line insulator, including the insulation shell with cavity,
Upper contact rod and be used for and upper contact rod formed discharging gap lower contact rod；Upper contact rod and lower contact rod are located at always
On line, discharging gap is located in cavity；The bottom of upper contact rod and the top of lower contact rod are respectively provided with a ball discharge, this two
Ball discharge clamping forms discharging gap.
In such scheme, insulation shell is made of ceramics, and the middle part of insulation shell is provided with spherical porcelain tripe, the top of porcelain tripe
The canopy for being used to block porcelain tripe formed provided with evagination, the wall body of porcelain tripe are provided with the bleeder port of a plurality of connection cavity.
In such scheme, insulation shell top is provided with the clamp gold utensil being used for aerial cable electrical connection, upper contact rod
Upper end stretch out the electrical connection of corresponding metal cover and clamp gold utensil upwards.
The present invention has advantages below：（1）The upper contact rod of formation discharging gap and lower contact rod are placed in insulator
In cavity, it is ensured that the cleaning of point of discharge, so as to ensure that the reliability of discharge prevention action, and reduce space-consuming.
Brief description of the drawings
Fig. 1 is a kind of dimensional structure diagram of the present invention；
Fig. 2 is a kind of half section structure diagram of insulator shown in Fig. 1.
Mark shown in accompanying drawing for：Insulation shell 1, cavity 11, metal cover 12, through hole 121, porcelain tripe 13, canopy 14, bleeder port
15, clamp gold utensil 2, upper contact rod 3, lower contact rod 4, installation portion 41, ball discharge 5.
Embodiment
（Embodiment 1, lightning protection pillar insulator）
It is below in conjunction with accompanying drawing and specifically real to make the technical problem to be solved in the present invention, technical scheme and advantage clearer
Example is applied to be described in detail.
The present invention provides a kind of overhead transmission line insulator, as depicted in figs. 1 and 2, including the insulation shell with cavity 11
1st, be arranged on insulation shell top be used for and aerial cable electrical connection clamp gold utensil 2 and clamp gold utensil electrical connection
Contact rod 3 and be used for and upper contact rod formed discharging gap lower contact rod 4.
The bottom of upper contact rod and the top of lower contact rod are respectively provided with a ball discharge 5, and two ball discharges are located at respectively
The upper and lower part of the cavity, discharging gap are located at the middle part of cavity.
When thunderbolt occurs, thunder-strike current discharges between two ball discharges.
The upper and lower ends of insulation shell are respectively provided with a metal cover 12, and each metal cover is fixedly installed on phase by rolling mode
On the one end answered；Through hole 121 is provided with the center of each metal cover, upper contact rod and lower contact rod are fixedly installed by welding manner
In a corresponding through hole.
Insulation shell is made of ceramics, and the middle part of insulation shell is provided with spherical porcelain tripe 13, and the top of porcelain tripe is provided with evagination
What is formed is used to block the canopy 14 of porcelain tripe, and the wall body of porcelain tripe is provided with the bleeder port 15 of a plurality of connection cavity；Work as thunder-strike current
During release, when gases are heated, they expand in cavity, is discharged from bleeder port.
Corresponding metal cover and clamp gold utensil electrical connection is stretched out in the upper end of upper contact rod upwards.
The lower end of lower contact rod extends downwardly from corresponding metal cover as the installation portion 41 being fixedly installed on cross-arm.
The upper contact rod and lower contact rod are located along the same line.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And these
The obvious changes or variations that the connotation for belonging to of the invention is extended out still falls within protection scope of the present invention.
Claims (3)
1. a kind of overhead transmission line insulator, including the insulation shell with cavity, upper contact rod and it is used for and upper conductive rod
Into the lower contact rod of discharging gap；It is characterized in that：Upper contact rod and lower contact rod are located along the same line, and discharging gap is located at
In cavity；The bottom of upper contact rod and the top of lower contact rod are respectively provided with a ball discharge, and two ball discharge clampings, which are formed, puts
Electric gap.
2. overhead transmission line insulator according to claim 1, it is characterised in that：Insulation shell is made of ceramics, insulation
The middle part of housing is provided with spherical porcelain tripe, and the top of porcelain tripe is provided with the canopy for being used to block porcelain tripe that evagination is formed, the wall body of porcelain tripe
It is provided with the bleeder port of a plurality of connection cavity.
3. overhead transmission line insulator according to claim 2, it is characterised in that：Insulation shell top, which is provided with, to be used for and frame
Corresponding metal cover and clamp gold utensil electrical connection is stretched out in the clamp gold utensil of ceases to be busy cable electrical connection, the upper end of upper contact rod upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710745915.9A CN107564637A (en) | 2017-08-26 | 2017-08-26 | A kind of overhead transmission line insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710745915.9A CN107564637A (en) | 2017-08-26 | 2017-08-26 | A kind of overhead transmission line insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107564637A true CN107564637A (en) | 2018-01-09 |
Family
ID=60975990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710745915.9A Pending CN107564637A (en) | 2017-08-26 | 2017-08-26 | A kind of overhead transmission line insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107564637A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201185110Y (en) * | 2007-09-06 | 2009-01-21 | 固力发电气有限公司 | Puncture type lightning protection insulator |
| CN202019192U (en) * | 2011-04-01 | 2011-10-26 | 衢州日新电气有限公司 | Combined device with grounded middle point |
| CN206312664U (en) * | 2016-12-30 | 2017-07-07 | 中山市泰峰电气有限公司 | A kind of transformer disc insulator with many passages |
-
2017
- 2017-08-26 CN CN201710745915.9A patent/CN107564637A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201185110Y (en) * | 2007-09-06 | 2009-01-21 | 固力发电气有限公司 | Puncture type lightning protection insulator |
| CN202019192U (en) * | 2011-04-01 | 2011-10-26 | 衢州日新电气有限公司 | Combined device with grounded middle point |
| CN206312664U (en) * | 2016-12-30 | 2017-07-07 | 中山市泰峰电气有限公司 | A kind of transformer disc insulator with many passages |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180109 |