CN205122310U - Distribution lines overvoltage protection - Google Patents
Distribution lines overvoltage protection Download PDFInfo
- Publication number
- CN205122310U CN205122310U CN201520920731.8U CN201520920731U CN205122310U CN 205122310 U CN205122310 U CN 205122310U CN 201520920731 U CN201520920731 U CN 201520920731U CN 205122310 U CN205122310 U CN 205122310U
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- pressure side
- low
- horn
- goat
- support bar
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- 241000883966 Astrophytum capricorne Species 0.000 claims abstract description 42
- 239000012212 insulator Substances 0.000 claims abstract description 34
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 210000003127 knee Anatomy 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model provides a distribution lines overvoltage protection, including line insulator, the rounded shape coating structure for the knee space of the front seat is characterized in that, low -pressure end at line insulator has linked firmly the low tension side fixed loop, low pressure side support bar has been linked firmly on the low tension side fixed loop, be connected with fixed position adjustable low tension side goat's horn on low pressure side support bar, high -pressure side at line insulator has linked firmly the high -pressure side fixed loop, high -pressure side support bar has been linked firmly on the high -pressure side fixed loop, be connected with fixed position adjustable high -pressure side goat's horn on high -pressure side support bar, the intermediate lever fixed loop has been linked firmly at line insulator's middle part, the intermediate lever has been linked firmly on the intermediate lever fixed loop, the overvoltage constitutes the protective gap parallelly connected with line insulator, the protection line insulator parallelly connected with the clearance thereby protective gap discharges by high -pressure side goat's horn and low tension side goat's horn when appearing in the circuit, the intermediate lever is used for preventing that other foreign objects such as birds or branch from touching accidentally and arousing that the clearance punctures the short circuit that causes. Have advantages such as simple structure, low price, maintenance convenience.
Description
Technical field
The utility model relates to technical field of electric power, particularly relates to a kind of distribution line overvoltage protection.
Background technology
Distribution line is the important component part of China's electrical network, when distribution line occurring overvoltage, often causing insulator arc-over, causing line tripping accident, thus the stability and safety affecting electrical network is run.
In current technology, commonplace overvoltage protection all adopts insulator parallel connection gaps structure, when circuit occurring overvoltage; by the gap discharge in parallel with line insulator; thus avoid insulator generation flashover, improve reclosing success rate, avoid the generation of line tripping accident.But in current technology, parallel connection gaps does not possess against short-circuit effect, easily cause gap shorting when two electrodes of other foreign objects such as bird or branch overlap joint parallel connection gaps thus occur the phenomenon of portable protective gaps misoperation.Parallel connection gaps physical dimension current is in addition all fixing, cannot adjust, do not possess versatility after installation, is unfavorable for carrying out of follow-up O&M and service work.
Summary of the invention
The purpose of this utility model is; a kind of distribution line overvoltage protection is provided; this device has against short-circuit function; and the clearance distance of insulator parallel connection gaps can be regulated; the safe and stable operation level of distribution line can not only be improved, and can provide convenience for follow-up circuit O&M and carrying out of service work.
The technical scheme realizing the employing of the utility model object is: a kind of distribution line overvoltage protection, it comprises line insulator, it is characterized in that, low-pressure side retainer ring is fixed with at the low-pressure end of described line insulator, low-pressure side retainer ring is fixed with low-pressure side support bar, low-pressure side support bar is connected with the low-pressure side goat's horn that fixed position is adjustable, high-pressure side retainer ring is fixed with at the high-pressure side of described line insulator, high-pressure side retainer ring is fixed with high-pressure side support bar, high-pressure side support bar is connected with the high-pressure side goat's horn that fixed position is adjustable, intermediate bar retainer ring is fixed with at the middle part of described line insulator, intermediate bar retainer ring is fixed with intermediate bar, form the portable protective gaps in parallel with line insulator by high-pressure side goat's horn and low-pressure side goat's horn, described portable protective gaps carries out when overvoltage appears in circuit discharging thus protecting the line insulator in parallel with gap, the short circuit that described intermediate bar causes gap breakdown to cause for preventing other foreign objects such as birds or branch from accidentally touching.
The described adjustable low-pressure side goat's horn in fixed position that is connected with on low-pressure side support bar is that described low-pressure side support bar is connected by the long rabbet of bolt with low-pressure side goat's horn.
The described adjustable high-pressure side goat's horn in fixed position that is connected with on the support bar of high-pressure side is that described high-pressure side support bar is connected by the long rabbet of bolt with high-pressure side goat's horn.
Due to a kind of distribution line overvoltage protection of the present utility model, comprising: the low-pressure side retainer ring be connected with line insulator low-pressure end; The low-pressure side support bar be connected with low-pressure side retainer ring; The low-pressure side goat's horn be connected with low-pressure side support bar; The high-pressure side support bar be connected with line insulator high-pressure side; The high-pressure side goat's horn be connected with high-pressure side support bar and the intermediate bar retainer ring be connected in the middle part of line insulator; The intermediate bar be connected with intermediate bar retainer ring; Wherein, high-pressure side goat's horn and low-pressure side goat's horn form the portable protective gaps in parallel with line insulator, and portable protective gaps carries out when overvoltage appears in circuit discharging thus protecting the line insulator in parallel with gap; Because low-pressure side support bar is connected by the long rabbet of bolt with low-pressure side goat's horn, high-pressure side support bar is connected by the long rabbet of bolt with high-pressure side goat's horn, thus the distance that can adjust portable protective gaps is with the insulation level requirement of satisfied different circuit; The short circuit that intermediate bar causes gap breakdown to cause for preventing other foreign objects such as birds or branch from accidentally touching.There is simple structure, the advantage such as cheap, easy to maintenance.The effect of protection circuit and electric equipment can be played when overvoltage appears in distribution line, improve the safe and stable operation level of distribution line.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of distribution line overvoltage protection of the present utility model.
In figure: 1-line insulator, 2-low-pressure side retainer ring, 3-low-pressure side support bar, 4-low-pressure side goat's horn, 5-high-pressure side support bar, 6-high-pressure side goat's horn, 7-intermediate bar retainer ring, 8-intermediate bar.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in Figure 1; a kind of distribution line overvoltage protection of the utility model embodiment, comprising: line insulator 1, low-pressure side retainer ring 2, low-pressure side support bar 3, low-pressure side goat's horn 4, high-pressure side support bar 5, high-pressure side goat's horn 6, intermediate bar retainer ring 7, intermediate bar 8.Low-pressure side retainer ring 2 is enclosed within line insulator 1 low-pressure end steel cap, and is connected with bolt.Low-pressure side support bar 3 and low-pressure side retainer ring 2 are connected by bolt.Low-pressure side goat's horn 4 and low-pressure side support bar 3 are bolted.High-pressure side support bar 5 is bolted on line insulator 1 high-pressure side steel pin, and high-pressure side goat's horn 6 and high-pressure side support bar 5 are bolted.High-pressure side goat's horn 6 forms the portable protective gaps in parallel with line insulator 1 with low-pressure side goat's horn 4; high-pressure side goat's horn 6 and low-pressure side goat's horn 4 lower end are all made into long rabbet form; can be changed the position of two goat's horns by the fixed position of adjusting bolt and long rabbet, thus the distance of adjustment portable protective gaps is with the insulation level requirement of satisfied different circuit.Intermediate bar retainer ring 7 is enclosed within line insulator 1 middle part steel cap, and is fixed with bolt.Intermediate bar 8 and intermediate bar retainer ring 7 adopt bolt to be fixed connection.Intermediate bar 8 can play the portable protective gaps short circuit preventing the foreign object such as bird or branch from causing, and avoids protective device misoperation.Low-pressure side retainer ring 2, low-pressure side support bar 3, low-pressure side goat's horn 4, high-pressure side support bar 5, high-pressure side goat's horn 6 and intermediate bar 8 adopt carbon structural steel material respectively, and hot galvanizing process is carried out on surface; Intermediate bar retainer ring 7 adopts polytetrafluoroethylene material.
When using a kind of distribution line overvoltage protection of the present utility model, the distance between adjustment high-pressure side goat's horn 6 and low-pressure side goat's horn 4, makes the dielectric strength in gap between it lower than the insulation level of institute's protection circuit.When circuit normally runs, overvoltage protection insulation against ground, when circuit occurring overvoltage, protective device action, portable protective gaps discharges, and electric arc moves up rapidly along goat's horn and is elongated, thus can arc extinguishing voluntarily, avoids gap to be burnt.A large amount of overcurrent can be leaked into the earth by protective device electric discharge, overvoltage significantly be reduced, and then plays the effect of protection circuit and electric equipment.
Claims (3)
1. a distribution line overvoltage protection, it comprises line insulator, it is characterized in that, low-pressure side retainer ring is fixed with at the low-pressure end of described line insulator, low-pressure side retainer ring is fixed with low-pressure side support bar, low-pressure side support bar is connected with the low-pressure side goat's horn that fixed position is adjustable, high-pressure side retainer ring is fixed with at the high-pressure side of described line insulator, high-pressure side retainer ring is fixed with high-pressure side support bar, high-pressure side support bar is connected with the high-pressure side goat's horn that fixed position is adjustable, intermediate bar retainer ring is fixed with at the middle part of described line insulator, intermediate bar retainer ring is fixed with intermediate bar, form the portable protective gaps in parallel with line insulator by high-pressure side goat's horn and low-pressure side goat's horn, portable protective gaps carries out when overvoltage appears in circuit discharging thus protecting the line insulator in parallel with gap, the short circuit that intermediate bar accidentally touches for preventing birds or branch or other foreign objects and causes gap breakdown to cause.
2. a kind of distribution line overvoltage protection according to claim 1; it is characterized in that, the described adjustable low-pressure side goat's horn in fixed position that is connected with on low-pressure side support bar is that described low-pressure side support bar is connected by the long rabbet of bolt with low-pressure side goat's horn.
3. a kind of distribution line overvoltage protection according to claim 1; it is characterized in that, the described adjustable high-pressure side goat's horn in fixed position that is connected with on the support bar of high-pressure side is that described high-pressure side support bar is connected by the long rabbet of bolt with high-pressure side goat's horn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520920731.8U CN205122310U (en) | 2015-11-18 | 2015-11-18 | Distribution lines overvoltage protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520920731.8U CN205122310U (en) | 2015-11-18 | 2015-11-18 | Distribution lines overvoltage protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122310U true CN205122310U (en) | 2016-03-30 |
Family
ID=55577896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520920731.8U Active CN205122310U (en) | 2015-11-18 | 2015-11-18 | Distribution lines overvoltage protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849045A (en) * | 2017-03-03 | 2017-06-13 | 中国电力工程顾问集团西南电力设计院有限公司 | The selection method of high voltage single-core cable sheath protector parallel connection gaps |
-
2015
- 2015-11-18 CN CN201520920731.8U patent/CN205122310U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849045A (en) * | 2017-03-03 | 2017-06-13 | 中国电力工程顾问集团西南电力设计院有限公司 | The selection method of high voltage single-core cable sheath protector parallel connection gaps |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |