CN202601858U - Lightning-proof gap type grounding device - Google Patents
Lightning-proof gap type grounding device Download PDFInfo
- Publication number
- CN202601858U CN202601858U CN 201220204791 CN201220204791U CN202601858U CN 202601858 U CN202601858 U CN 202601858U CN 201220204791 CN201220204791 CN 201220204791 CN 201220204791 U CN201220204791 U CN 201220204791U CN 202601858 U CN202601858 U CN 202601858U
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- Prior art keywords
- lightning
- gap type
- grounding
- electrode
- line
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- Expired - Lifetime
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- 229920002379 silicone rubber Polymers 0.000 claims abstract description 9
- 239000004945 silicone rubber Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 14
- 239000011787 zinc oxide Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
The utility model relates to the technical field of lightning-proof gap type grounding devices, in particular to a grounding protective device which realizes a lightning-proof effect for a power distribution line and is used during power-failure operation of the power transmission line, and discloses a lightning-proof gap type grounding device. An existing lightning protection channel is sufficiently utilized, and a lightning-proof gap and a fixed electric grounding protective line are uniquely combined. The lightning-proof gap type grounding device comprises a zigzag wire fixing apparatus, insulating silicon rubber and a fixed discharge electrode. The zigzag wire fixing apparatus is connected with the fixed discharge electrode and is connected with a fixed base by the insulating silicon rubber, and the fixed base is connected with a movable grounding electrode by a movable electrode fixing bolt. The lightning-proof gap type grounding device can effectively realize the lightning-proof effect and power-failure grounding for the line, so that the line can move within a certain range. Besides, the lightning-proof gap type grounding device can be used as a lightning arrester, can be used as a normal protective gap, and can also be used as a grounding wire, the problem of low utilization rate of equipment is avoided, burden on working staff is relieved, work efficiency is greatly improved, and the lightning-proof gap type grounding device has a good social benefit.
Description
Technical field
The utility model relates to the technical field of lightning protection inter space type earthing device, the earth protective device when relating in particular to a kind of distribution line lightning protection problem and distribution line power failure operation.Be to make full use of existing lightning protection passage, lightning protection inter space and the fixed fusion of protective wire electrical ground is unique, can solve line thunder protection and power failure problem with grounding effectively.
Background technology
For the protection distribution line is not struck by lightning and superpotential infringement, zinc oxide arrester is used on distribution line widely, average per three bar one places on insulated circuit.Simultaneously, in distribution line power failure operation process, need the operating personnel to carry the heavy earth connection of 10kg and carry out ground connection.
Existing zinc oxide arrester bears distribution wire route voltage for a long time, causes thunder resisting equipment impaired defective easily, has reduced service life of equipment.
Because zinc oxide arrester bears line voltage distribution for a long time, certainly exists certain electric energy loss, because the lightning arrester quantity on the present distribution line is huge, the line loss that causes for above-mentioned reasons also is quite surprising.
There is the possibility that punctures in simultaneous oxidation zinc lightning arrester under long-term high voltage environment, distribution line has brought certain single phase ground fault hidden danger.
Summary of the invention
For solving above-mentioned weak point of the prior art, the utility model provides a kind of lightning protection inter space type earthing device.Purpose is to realize solving effectively line thunder protection and power failure problem with grounding.Greatly reduce staff's burden simultaneously, improved utilization rate of equipment and installations and operating efficiency effectively.
The utility model solves the technical scheme that its technical problem adopted:
Lightning protection inter space type earthing device, it comprises zigzag standoff, electrically insulating silicone rubber and fixed earial drainage electrode; The zigzag standoff links to each other with fixed earial drainage electrode, and the zigzag standoff links to each other through electrically insulating silicone rubber with firm banking, and firm banking links to each other through the float electrode set bolt with movable earth electrode.
Described float electrode set bolt 4 is connected with tail attaching ground wire.
The utility model is a kind of lightning protection inter space type earthing device; It is the original creation formula scrap build that original interstice type lightning arrester is carried out; Original fixed protection clearance electrode is improved; Become disconnecting link formula protection gap earthing device, solve line thunder protection and power failure problem with grounding effectively, make its activity within the specific limits.Withstand voltage to it simultaneously, lightning protection, let slip voltage and grounded capacity carries out sufficient experimental demonstration.Can be used as lightning arrester, use as normal protection gap; When circuit need have a power failure hanging earthing conductor, the electrode joint in protection gap made it become current path; So just can it be used as earth connection, both avoid utilization rate of equipment and installations low, alleviate staff's burden again; Simultaneously improve operating efficiency widely, had the good social benefit.
The utility model also has the following advantages:
1, equipment life, the cycle was long.The utility model utilizes lightning protection inter space to discharge lightning current, has effectively avoided zinc oxide arrester to bear distribution wire route voltage for a long time and has caused thunder resisting equipment impaired defective easily.Prolonged the life cycle of thunder resisting equipment.
2, reduce the distribution line loss.Zinc oxide arrester bears line voltage distribution for a long time, certainly exists certain electric energy loss, because the lightning arrester quantity on the present distribution line is huge, the line loss that causes for above-mentioned reasons also is quite surprising.Lightning protection type earthing device at county level can effectively reduce the distribution line loss that causes because of lightning arrester.
3, improve the distribution line power supply reliability.At present, there is the possibility that punctures in zinc oxide arrester under long-term high voltage environment; Distribution line has brought certain single phase ground fault hidden danger; The lightning protection inter space of lightning protection inter space type earthing device has effectively improved the power supply reliability of distribution system not by the possibility of system voltage puncture.
4, reduce the danger coefficient of power failure operation in road under the distribution.When distribution line had a power failure operation, its ground connection link was because earth connection is heavy, and electrified body is difficult to reasons such as assurance from operating personnel's safe distance in the installation earth connection process, causes the ground connection link to have the danger of human body electrification, induced voltage.Lightning protection inter space type earthing device utilizes the disconnecting link formula grounding apparatus of himself, and this earthing device is simple to operate, and the operating personnel utilizes insulating bar can accomplish the ground connection operation, has reduced human body electrification, induced voltage danger coefficient in the ground connection link greatly.
The utility model can prolong equipment life, reduces line loss, improves power supply reliability, improve staff's coefficient of safety simultaneously.
Through calculating 180 yuan of every zinc oxide arresters; 70 yuan of lightning protection inter space type earthing device costs; Annual nearly 5000 of distribution lightning arrester, annual 1500 of the distribution lightning arresters of changing of areas of Shenyang changed can reduce investment outlay 550,000 and 150,000 respectively in statistics Liaoning Province company scope.
Through statistics, branch company needs distribution earth connection 4000 covers altogether under the electric company of ShenYang, Liaoning Province, and 1000 yuan of average every cover prices can be saved the investment for the distribution earth connection fully if use lightning protection inter space type earthing device, amount to 400,000 yuan.
Through statistics; Mounting or dismounting ground path workload needs an operation person-time in each distribution overhead transmission line interruption maintenance operation; If use the operation number that the utility model device can be saved to be increased because of the mounting or dismounting earth connection, calculate the annual economic benefit that can produce 400,000 yuan by the average daily wage of Shenyang Power Supply Co..
Reduce the power failure hourage.Through statistics, utilize lightning protection inter space type earthing device can be in each power failure operation decreased average power failure hourage 1 hour.The 10kV transmission line is transmission of electric energy 0.1 ten thousand kWh per hour on average, can reduce interruption duration 4000 hours every year through calculating, and 4,000,000 kWh can supply power more.
Therefore, adopt the utility model device to produce 1,150,000 yuan of economic benefits every year altogether.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1.
Among the figure: zigzag standoff 1, fixed earial drainage electrode 2, movable earth electrode 3, float electrode set bolt 4, electrically insulating silicone rubber 5, firm banking 6.
Embodiment
Extremely shown in Figure 3 like Fig. 1, lightning protection inter space type earthing device, it comprises zigzag standoff 1, electrically insulating silicone rubber 5 and fixed earial drainage electrode 2.Zigzag standoff 1 links to each other with fixed earial drainage electrode 2, and zigzag standoff 1 links to each other through electrically insulating silicone rubber 5 with firm banking 6, and firm banking 6 links to each other through float electrode set bolt 4 with movable earth electrode 3.
The utility model specifically is on common protection clearance type lightning arrester, to install float electrode set bolt 4 additional, changes bottom electrode the structure of movable earth electrode 3 into, and guarantees that it can fully contact with fixed earial drainage electrode 2.During operate as normal, fixed earial drainage electrode 2 separates with movable earth electrode 3 mutually, uses as protection clearance type lightning arrester; During line-to-ground, fixed earial drainage electrode 2 fully contacts with movable earth electrode 3, forms current path, reaches the line-to-ground purpose.Therefore, demands such as movable earth electrode 3 can the root lightning protection, ground connection are free movable, under different conditions, can play functions such as lightning protection inter space, ground connection respectively.Can also float electrode set bolt 4 and tail attaching ground wire be linked together during concrete the use.
Under normal operating condition, fixed earial drainage electrode 2 separates with movable earth electrode 3 mutually, as lightning-arrest its use of protection clearance type.This moment, insulator played support wire, the effect of electrified body and earth electrode insulation.Zigzag standoff when overhead transmission line is struck by lightning, fixed earial drainage electrode, lightning protection inter space, movable earth electrode, the float electrode set bolt, firm banking forms the lightning current bleed-off circuit, prevents that lightning current from damaging lead.
When overhead transmission line had a power failure operation, movable earial drainage electrode can be in the state of closing, and this moment, lead passed through the zigzag standoff, fixed earial drainage electrode, and movable earth electrode, the float electrode set bolt, firm banking links to each other with the earth.When line-to-ground, two electrodes fully contact, and form current path, reach the line-to-ground purpose, promptly play the safety work function of traditional earth connection.
Claims (2)
1. lightning protection inter space type earthing device; It comprises zigzag standoff (1), electrically insulating silicone rubber (5) and fixed earial drainage electrode (2); It is characterized in that: zigzag standoff (1) links to each other with fixed earial drainage electrode (2); Zigzag standoff (1) links to each other through electrically insulating silicone rubber (5) with firm banking (6), and firm banking (6) links to each other through float electrode set bolt (4) with movable earth electrode (3).
2. lightning protection inter space type earthing device according to claim 1 is characterized in that: described float electrode set bolt (4) is connected with tail attaching ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204791 CN202601858U (en) | 2012-05-09 | 2012-05-09 | Lightning-proof gap type grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220204791 CN202601858U (en) | 2012-05-09 | 2012-05-09 | Lightning-proof gap type grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601858U true CN202601858U (en) | 2012-12-12 |
Family
ID=47319377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220204791 Expired - Lifetime CN202601858U (en) | 2012-05-09 | 2012-05-09 | Lightning-proof gap type grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202601858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629759A (en) * | 2012-05-09 | 2012-08-08 | 辽宁省电力有限公司沈阳供电公司 | Lightning protection clearance type grounding device |
| CN104868257A (en) * | 2015-05-14 | 2015-08-26 | 江苏亨通线缆科技有限公司 | Novel grounded copper rod and assemblies thereof |
-
2012
- 2012-05-09 CN CN 201220204791 patent/CN202601858U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629759A (en) * | 2012-05-09 | 2012-08-08 | 辽宁省电力有限公司沈阳供电公司 | Lightning protection clearance type grounding device |
| CN104868257A (en) * | 2015-05-14 | 2015-08-26 | 江苏亨通线缆科技有限公司 | Novel grounded copper rod and assemblies thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130116 Address after: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Patentee after: Liaoning Shenyang Electric Power Supply Co., Ltd. Patentee after: State Grid Corporation of China Address before: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Patentee before: Liaoning Shenyang Electric Power Supply Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |