CN202549516U - Suspension type line arrester for alternating current system - Google Patents
Suspension type line arrester for alternating current system Download PDFInfo
- Publication number
- CN202549516U CN202549516U CN2012200834550U CN201220083455U CN202549516U CN 202549516 U CN202549516 U CN 202549516U CN 2012200834550 U CN2012200834550 U CN 2012200834550U CN 201220083455 U CN201220083455 U CN 201220083455U CN 202549516 U CN202549516 U CN 202549516U
- Authority
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- China
- Prior art keywords
- electrode
- suspension type
- fixture block
- alternating current
- tab
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 13
- 239000012212 insulator Substances 0.000 claims abstract description 25
- 239000004020 conductor Substances 0.000 claims description 18
- 229910052573 porcelain Inorganic materials 0.000 claims description 17
- 238000009434 installation Methods 0.000 abstract description 6
- 239000000919 ceramic Substances 0.000 abstract 4
- 238000011900 installation process Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to a suspension type line arrester for an alternating current system. The suspension type line arrester for the alternating current system is characterized by comprising an arrester body, a connecting rod, a connecting device, a ceramic insulator, a weld tab and an electrode. The electrode is connected with the arrestor body through fastening screws. The arrestor body is connected with the ceramic insulator through the connecting device. The weld tab is disposed on the tail end of the ceramic insulator. The position of the weld tab corresponds to the position of the electrode. An air gap is formed between the weld tab and the electrode. The suspension type line arrester for the alternating current system uses series gaps to isolate the system, namely runs voltage through the air gap between the electrode and the weld tab so that the suspension type line arrester for the alternating current system can be free of maintenance and is high in reliability. The arrester body and the ceramic insulator are combined into a whole through the connecting device and then are transported to the scene for further installation, and therefore installation processes are simplified and installation efficiency is improved.
Description
Technical field
The utility model relates to a kind of AC system and uses the suspension type leakage conductor.
Background technology
In power distribution network, adopt insulated conductor to solve corridor that plain conductor can't resolve and safety problem, compare with cable, adopt the insulated conductor reduced investment, build soon, advantage is fairly obvious.Developed countries has gradually adopted suspended insulated guide wire from the later stage sixties 20th century.But insulated conductor also has the weakness of himself, i.e. lightning-caused breaking problem, and so-called thunderbolt must be broken.Therefore, must properly settle the lightning-caused breaking problem.
According to the mechanism of insulated conductor lightning-caused breaking, the corresponding precautionary measures have " dredge and stop up " dual mode." dredging " is exactly with near the local bare wireization of the insulated conductor the insulator, make power frequency arc arc root shift or be fixed on the special gold utensil and burn, thereby guardwire avoids burn.For example, peel off at insulator and wire coupling place insulating barrier, adopt arc protection molded lines folder or the insulated conductor of insulator both sides peeled off one section insulating barrier and installed the preventing arc wire clamp additional.Simple to operate, the small investment of the mode of " dredging formula ", but lead is local exposed, has sealing and insulation defect." obstruction " is exactly to stop the power frequency continued flow starting the arc behind the lightning stroke flashover.For example, adopt the current-limiting arc-extinguishing angle, i.e. the ring-like external series gap metal oxide arrester of band series connection.Compare " dredging formula ", the mode better protecting effect of " blocking type ", shortcoming are the construction relative complex, and cost is higher.
China implements insulating since the eighties to the built on stilts net of city power distribution and transforms pilot, has accelerated paces the nineties.In recent years, along with the increase of insulated conductor area coverage in the power distribution network, the lightning-caused breaking problem is also day by day obviously got up.China has obtained phasic results to insulated conductor lightning-caused breaking Study on Problems and security application, but in protection practices, also constantly finds new problem, need research and propose new solution or improvement way.
The utility model content
According to above deficiency of the prior art, the technical problem that the utility model will solve is: provide a kind of AC system that can overcome above-mentioned defective to use the suspension type leakage conductor, and easy to use, lightning-arrest effective.
The utility model solves the technical scheme that its technical problem adopted: a kind of AC system is used the suspension type leakage conductor; It is characterized in that, comprise lightning arrester body, pitman, jockey, porcelain insulator, run-on tab and electrode, electrode is connected through marking closely with lightning arrester body; Lightning arrester body connects porcelain insulator through jockey; The end of porcelain insulator is provided with run-on tab, and run-on tab is corresponding with the position of electrode, has the air gap between run-on tab and the electrode.
Described jockey comprises pitman, fixture block and U bolt, and lightning arrester body is connected with pitman, and pitman connects fixture block, and fixture block is fixed through U bolt and porcelain insulator.
Described fixture block is rectangle and has a plurality of bolts hole, and the fixture block both sides are provided with buckle in the opposite direction, and fixture block is an integral structure.
The beneficial effect that the utility model had is:
(1) the utility model adopts the series gap shielding system promptly to come working voltage through the interstitial gap between electrode and the run-on tab, can be non-maintaining, and reliability is high.
(2) the utility model is assembled into one lightning arrester body and porcelain insulator through jockey, can the two that assemble be transported to the scene and implement to install again, and has simplified installation steps, has improved installation effectiveness.
(3) lightning arrester after assembling has been fixed the series gap distance value, need not to carry out Field adjustment during installation again, has reduced installation difficulty and has guaranteed that effectively clearance distance satisfies set point.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the fixture block structural representation;
Among the figure: 1, lightning arrester body; 2, pitman; 3, U bolt; 4, fixture block; 5, line conductor; 6, porcelain insulator; 7, run-on tab; 8, air gap; 9, electrode; 10, bolt hole; 11, buckle.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done and to further describe:
Use the suspension type leakage conductor like Fig. 1～AC system shown in Figure 2, comprise lightning arrester body 1, pitman 2, jockey, porcelain insulator 6, run-on tab 7 and electrode 9.Electrode 9 and lightning arrester body 1 are through marking closely tight the electrical connection, and electrode 9 can adopt hemisphere, plate shape or clavate.Lightning arrester body 1 connects porcelain insulator 6 through jockey, the top connection line lead 5 of porcelain insulator 6, and the end of porcelain insulator 6 is provided with run-on tab 7, and run-on tab 7 is corresponding with the position of electrode 9, has air gap 8 between run-on tab 7 and the electrode 9.Jockey comprises pitman 2, fixture block 4 and U bolt 3, and lightning arrester body 1 is connected with pitman 2, and pitman 2 connects fixture block 4, and fixture block 4 is fixing with porcelain insulator 6 through U bolt 3.Fixture block 4 is for rectangle and have a plurality of bolts hole 10; Fixture block 4 both sides are provided with buckle in the opposite direction 11; Rivet each other through bolt hole 10 between pitman 2 and the fixture block 4; U bolt 3 is also fastening through bolt hole on the fixture block 4 10 and porcelain insulator 6, and the buckle 11 on the fixture block 4 can closely cooperate with the full skirt and the wiring place of porcelain insulator 6.Lightning arrester body 1 can adopt composite material once molding formed, and the air gap 8 between electrode 9 and the run-on tab 7 is confirmed through experiment, guarantees that lightning discharge all occurs in the air gap 8.
The utility model operation principle:
When system normally moves; The air gap isolates power-frequency voltage, and lightning arrester body bears voltage hardly, under the lightning overvoltage effect of direct lightning strike or the generation of induction thunder; The lightning arrester body conducting; Lightning arrester body presents Low ESR, and the air gap between grading ring and run-on tab is breakdown, and lightning current is released into ground.After the lightning impulse, the resistance of lightning arrester body moment change again is big, and the electric current that passes through is that arc current is suppressed in low numerical value; Increase falls in the air gap arc voltage; The insulation in insulator gap recovers rapidly, and electric arc extinguishes in the short time at the utmost point naturally, and power frequency continued flow is by blocking fully.
Claims (3)
1. an AC system is used the suspension type leakage conductor; It is characterized in that, comprise lightning arrester body, pitman, jockey, porcelain insulator, run-on tab and electrode, electrode is connected through marking closely with lightning arrester body; Lightning arrester body connects porcelain insulator through jockey; The end of porcelain insulator is provided with run-on tab, and run-on tab is corresponding with the position of electrode, has the air gap between run-on tab and the electrode.
2. AC system according to claim 1 is used the suspension type leakage conductor; It is characterized in that described jockey comprises pitman, fixture block and U bolt, lightning arrester body is connected with pitman; Pitman connects fixture block, and fixture block is fixed through U bolt and porcelain insulator.
3. AC system according to claim 1 is used the suspension type leakage conductor, it is characterized in that, described fixture block is rectangle and has a plurality of bolts hole, and the fixture block both sides are provided with buckle in the opposite direction, and fixture block is an integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200834550U CN202549516U (en) | 2012-03-07 | 2012-03-07 | Suspension type line arrester for alternating current system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200834550U CN202549516U (en) | 2012-03-07 | 2012-03-07 | Suspension type line arrester for alternating current system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549516U true CN202549516U (en) | 2012-11-21 |
Family
ID=47170109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200834550U Expired - Lifetime CN202549516U (en) | 2012-03-07 | 2012-03-07 | Suspension type line arrester for alternating current system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507089A (en) * | 2021-04-28 | 2021-10-15 | 国网福建省电力有限公司 | Electrified easy-to-dismount-and-mount lightning arrester based on spring self-locking structure and working principle of electrified easy-to-dismount-and-mount lightning arrester |
-
2012
- 2012-03-07 CN CN2012200834550U patent/CN202549516U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507089A (en) * | 2021-04-28 | 2021-10-15 | 国网福建省电力有限公司 | Electrified easy-to-dismount-and-mount lightning arrester based on spring self-locking structure and working principle of electrified easy-to-dismount-and-mount lightning arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |