CN206671376U - A kind of arrester charging test overvoltage protection dedicated testing wire - Google Patents
A kind of arrester charging test overvoltage protection dedicated testing wire Download PDFInfo
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- CN206671376U CN206671376U CN201720068737.6U CN201720068737U CN206671376U CN 206671376 U CN206671376 U CN 206671376U CN 201720068737 U CN201720068737 U CN 201720068737U CN 206671376 U CN206671376 U CN 206671376U
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- Prior art keywords
- leakage current
- arrester
- testing
- wire clamp
- wire
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- 238000012360 testing method Methods 0.000 title claims abstract description 94
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 10
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims description 14
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000006378 damage Effects 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000032750 Device leakage Diseases 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram 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
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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- Thermistors And Varistors (AREA)
Abstract
The utility model discloses a kind of arrester charging test overvoltage protection dedicated testing wire; including the first lead wire clamp, the second lead wire clamp, portable protective gaps, leakage current testing inlet wire, leakage current testing outlet, fuse and leakage current of an arrester tester; described the first lead wire clamp and the second lead wire clamp is connected by wire clamp electric current line with the both ends of portable protective gaps respectively, and the both ends of portable protective gaps connect the current input terminal of leakage current of an arrester tester by leakage current testing inlet wire with leakage current testing outlet respectively.The utility model passes through leakage current table upper end lead wire clamp and the leakage current table short circuit of leakage current table tail end earthing clamp metal oxide arrester, make the leakage current of valve block inside metal oxide arrester substantially all out of leakage current of an arrester tester by accurate measurement leakage current values.The utility model is simple and reliable, is easy to test connection, has farthest ensured safety during electrical test personnel's operation.
Description
Technical field
The present invention relates to arrester test over-voltage protection technique field, more particularly to a kind of arrester charging test are excessively electric
Pressure protection dedicated testing wire.
Background technology
At present, arrester is one of important protection equipment for ensureing safe operation of power system, is mainly used in limitation system
Overvoltage, leakage current are a very important reference indexs for examining arrester quality.Operation maintenance personnel in fortune to keeping away at present
The measure that the inspection of thunder device state is the most frequently used is the periodic testing experiment for carrying out the leakage current under arrester running status,
State in fortune arrester is judged by the situation of leakage current.But when carrying out transporting the leakage current testing of arrester,
By three sets of test clamps, short circuit three-phase lightning protector leakage current table makes current signal enter test equipment respectively due to needing, no
Certain risk be present with can avoiding, i.e., system overvoltage occurs in test process causes the situation of lightning arrestor movement.Measuring
When, if a kind of situation is that lightning arrestor movement occurs, and now action current is largely from measuring apparatus by if test
Fuse is not contained in wire clamp（Fuse should be contained by being typically designed, but there is also the production of some leakage current of an arrester testers
The situation of the non-design insurance silk of producer）, then action current can moment burn out equipment, in the bad situation of the test equipment earthing of casing
Under, tester's personal injury can be caused；Another situation is if valve block has deteriorated inside arrester, is just kept away during measurement
Thunder device acts, then the high pressure of arrester can be scurried on bottom leakage ammeter at lead.This moment if leakage current table
Because action current causes huge electric stress to pull, generation is broken lead or internal fault causes action current can not be out of table
Pass through, then even if being provided with fuse in test clamp, blown fuse temporary protection equipment, but at blown fuse
End terminal is possible to breakdown fuse silk fracture again still in high potential within the of short duration time on leakage current of an arrester table
Cause personal injury.Therefore, to prevent both of these case, it is necessary to design a kind of special survey of arrester charging test overvoltage protection
Try line.
The content of the invention
It is an object of the invention to provide a kind of arrester charging test overvoltage protection dedicated testing wire, can be used in gold
Belong to and carry out arrester inside valve block under running status using leakage current of an arrester tester under Oxide Arrester running status
The measurement of leakage current.
The technical solution adopted by the present invention is：
A kind of arrester charging test overvoltage protection dedicated testing wire, including it is arranged on the first of leakage current table upper end
Lead wire clamp, the second lead wire clamp for being arranged on leakage current table tail end, portable protective gaps, leakage current testing inlet wire, leakage electricity
Current test outlet, fuse and leakage current of an arrester tester, the first described lead wire clamp and the second lead wire clamp difference
It is connected by wire clamp electric current line with the both ends of portable protective gaps, the both ends of portable protective gaps pass through leakage current testing inlet wire respectively
The current input terminal of leakage current of an arrester tester is connected with leakage current testing outlet, wherein fuse is located at portable protective gaps
Between leakage current of an arrester tester, it is connected on leakage current testing and enters on line segment.
Described portable protective gaps are ball gap, including the epoxy resin overcoat of sealing and are fixedly installed on respectively by screw close
First fixing bolt and the second fixing bolt at the epoxy resin overcoat both ends of envelope, between the first fixing bolt and the second fixing bolt
Gap is set.
The first described fixing bolt and the gap length of the second fixing bolt paper are fuse average melt distance
Half.
Also include composite insulation outer coat, the composite insulation outer coat is used to consolidate epoxy resin overcoat and first, second
Determine to close at the electrical connection of bolt, avoid testing crew from getting an electric shock.
Described leakage current testing outlet 13 and leakage current testing inlet wire 8 and the electricity of leakage current of an arrester tester 3
Stream input is additionally provided with thermal shrinkable sleeve 1 outside junction.
Described wire clamp electric current line 7 is connected using insulation annealed copper wire, line footpath size with the body of metal oxide arrester 2
The insulation annealed copper wire line footpath of leakage current table 6 is identical.
The present invention is that the first lead wire clamp and leakage current table tail end are grounded by leakage current table upper end lead wire clamp
Folder be the second lead wire clamp by the leakage current table short circuit of metal oxide arrester, make valve block inside metal oxide arrester
Leakage current substantially all out of leakage current of an arrester tester by the way that therefore one can be entered with accurate measurement leakage current values
Step by leakage current of an arrester tester p-wire additionally install additional a portable protective gaps, by standby portable protective gaps come
One extra arrester action current leakage path is provided, avoids that lightning arrestor movement occurs when carrying out lightning arrester live-line test
And by chance the main leakage path damage of arrester causes operation voltage and electric current to endanger equipment and the situation of personal safety；Letter of the invention
It is single reliable, it is easy to test connection, has farthest ensured safety during electrical test personnel's operation.The dedicated testing wire application
Scope is wide, has good market prospects and application value.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the mounting structure schematic diagram of the present invention.
In figure：1st, inlet wire and outlet thermal shrinkable sleeve, 2, metal oxide arrester, 3, leakage current of an arrester tester, 4,
Connect leakage current table upper end lead wire clamp, 5, leakage current table tail end earthing clamp, 6, leakage current table, 7, wire clamp electric current
Line, 8, leakage current testing inlet wire, 9, portable protective gaps, 10, fixing bolt, 11, epoxy resin overcoat, 12, composite insulation outer coat,
13rd, leakage current testing outlet, 14, fuse.
Embodiment
As illustrated in fig. 1 and 2, the present invention includes a kind of arrester charging test overvoltage protection dedicated testing wire, including sets
Put between the first lead wire clamp 4 of leakage current table upper end, the second lead wire clamp 5 for being arranged on leakage current table tail end, protection
Gap, leakage current testing inlet wire 8, leakage current testing outlet 13, fuse 14 and leakage current of an arrester tester 3, this hair
Bright by leakage current table upper end lead wire clamp is the first lead wire clamp 4 and leakage current table tail end earthing clamp i.e. the second lead
The short circuit of leakage current table 6 of metal oxide arrester 2 is made the leakage electricity of the inside valve block of metal oxide arrester 2 by wire clamp 5
Stream is substantially all out of leakage current of an arrester tester 3 by therefore can be with accurate measurement leakage current values.
Described the first lead wire clamp and the second lead wire clamp passes through the both ends phase of wire clamp electric current line and portable protective gaps 9 respectively
Connection, the both ends of portable protective gaps 9 connect arrester by leakage current testing inlet wire 8 and leakage current testing outlet 13 respectively
The current input terminal of leakage current tester 3, wherein fuse 14 be connected on portable protective gaps 9 to leakage current testing inlet wire 8 it
Between.The set location of portable protective gaps 9 in the present invention is had to before fuse 14, because only that being arranged such, between protection
Gap 9 can really play a protective role, it is assumed that fuse 14 is located at before portable protective gaps 9, when there is lightning arrestor movement, protects
Dangerous silk can fuse rapidly, but now if the high potential of end terminal is hit again within the of short duration time on leakage current of an arrester table
Wear fuse fracture and cause afterflow, then afterflow will ignore portable protective gaps 9 and be directly entered in test equipment and cause equipment and the person
Injury.Portable protective gaps 9 are located at before fuse 14, can be after the fusing of fuse 14, to the leakage current of an arrester still suffered from
The high potential of end terminal provides a current by pass on table, protects the safety of the person and equipment.
Wire clamp electric current line 7 is kept away with setting a portable protective gaps 9 at the tie point of leakage current testing inlet wire 8 for protecting to work as
End terminal is possible to breakdown fuse silk fracture again within the of short duration time and causes people still in high potential in thunder device leakage current table
Body injures,
Described portable protective gaps 9 are ball gap, including the epoxy resin overcoat 11 of sealing and are fixedly installed respectively by screw
The first fixing bolt and the second fixing bolt at the both ends of epoxy resin overcoat 11 of sealing, the first fixing bolt and second are fixed
Bolt-clearance is set.The portable protective gaps 9 are slightly thicker than the line footpath of wire clamp electric current line 7, can adjust with assembly and disassembly and arbitrarily between gap
Away to control breakdown voltage horizontal, the first described fixing bolt and the gap length of the second fixing bolt paper are fuse 14
The half of average melt distance, it can ensure to avoid fuse gap that repeated breakdown occurs in the case of blown fuse, it is ensured that
Overvoltage energy discharges from the portable protective gaps 9.
Also include composite insulation outer coat 12, the composite insulation outer coat 12 be used to making epoxy resin overcoat 11 and first,
Closed at the electrical connection of second fixing bolt 10, avoid testing crew from getting an electric shock.
Described leakage current testing outlet 13 and leakage current testing inlet wire 8 and the electricity of leakage current of an arrester tester 3
It is additionally provided with thermal shrinkable sleeve 1 outside stream input junction, it is specific that leakage current of an arrester tester 3 for existing product repeats no more its
Structure.
Described wire clamp electric current line 7 is connected using insulation annealed copper wire, line footpath size with the body of metal oxide arrester 2
The insulation annealed copper wire line footpath of leakage current table 6 is identical.
Fuse 14 is set between portable protective gaps 9 arrive leakage current testing inlet wire 8, fuse 14 selects loop current to surpass
The i.e. rapid fusing of 5A is crossed, fuse during for arrester action current test loop protection test equipment and personal security.Wherein, it is attached
Dotted portion is leakage current testing outlet 13 in figure, because some leakage current of an arrester testers 3 use proprietary leakage
Testing current outlet 13 forms leakage current testing loop with leakage current testing inlet wire 8, now needs to install leakage current survey additional
Line 13 is tried out, and some leakage current of an arrester testers 3 are formed with leakage current testing inlet wire 8 using the ground connection in equipment and let out
Leakage current test loop.Leakage current testing outlet 13 need to not needed depending on the concrete condition of leakage current of an arrester tester 3,
But with or without leakage current testing outlet 13, portable protective gaps 9 may be used to protection and work as leakage current of an arrester table upper end
Personal injury caused by high potential is possible at wire clamp.Final leakage current testing outlet 13 and leakage current testing inlet wire 8 are all logical
Cross inlet wire and outlet thermal shrinkable sleeve 1 is put together, into equipment.
This dedicated testing wire by portable protective gaps can also by two copper rods close to forming, realization can with assembly and disassembly, simultaneously
Gap spacing can arbitrarily be adjusted to control breakdown voltage horizontal, wiring is simple and reliable, is easy to tackle various voltage class arresters
Leakage current live testing situation.This dedicated testing wire portable protective gaps double hyer insulation is set, when preferably having ensured personnel's operation
Safety.The p-wire provides an extra arrester action current leakage path by a standby portable protective gaps,
Avoid occurring when carrying out lightning arrester live-line test lightning arrestor movement and by chance the damage of arrester main leakage path cause action electricity
Pressure and electric current endanger equipment and the situation of personal safety.The dedicated testing wire is simple and reliable for structure, is easy to test connection, maximum journey
Safety during electrical test personnel's operation has been ensured degree.Above-mentioned embodiment is used for illustrating the present invention, rather than to this
Invention is limited, in the protection domain of spirit and claims of the present invention, any modification and change made to the present invention
More, protection scope of the present invention is both fallen within.
Claims (6)
- A kind of 1. arrester charging test overvoltage protection dedicated testing wire, it is characterised in that：Including being arranged on leakage current table First lead wire clamp of upper end, the second lead wire clamp, portable protective gaps, the leakage current testing for being arranged on leakage current table tail end enter Line（8）, leakage current testing outlet（13）, fuse（14）With leakage current of an arrester tester（3）, described the first lead Wire clamp and the second lead wire clamp are connected by wire clamp electric current line with the both ends of portable protective gaps respectively, the two end portions of portable protective gaps Do not pass through leakage current testing inlet wire（8）With leakage current testing outlet（13）Connect leakage current of an arrester tester（3）'s Current input terminal, wherein fuse（14）Positioned at portable protective gaps（9）With leakage current of an arrester tester（3）Between, it is connected on Leakage current testing inlet wire（8）Duan Shang.
- 2. arrester charging test overvoltage protection dedicated testing wire according to claim 1, it is characterised in that：Described Portable protective gaps（9）For the epoxy resin overcoat of ball gap, including sealing（11）The ring of sealing is fixedly installed on by screw respectively Oxygen silicone jacket（11）First fixing bolt and the second fixing bolt at both ends, the first fixing bolt and the second fixing bolt gap Set.
- 3. arrester charging test overvoltage protection dedicated testing wire according to claim 2, it is characterised in that：Described First fixing bolt and the gap length of the second fixing bolt paper are fuse（14）The half of average melt distance.
- 4. arrester charging test overvoltage protection dedicated testing wire according to claim 3, it is characterised in that：Also include There is composite insulation outer coat（12）, the composite insulation outer coat（12）For making epoxy resin overcoat（11）Fixed with first, second Bolt（10）Electrical connection at close, avoid testing crew from getting an electric shock.
- 5. arrester charging test overvoltage protection dedicated testing wire according to claim 4, it is characterised in that：Described Leakage current testing outlet（13）With leakage current testing inlet wire（8）With leakage current of an arrester tester（3）Current input terminal Thermal shrinkable sleeve is additionally provided with outside junction（1）.
- 6. arrester charging test overvoltage protection dedicated testing wire according to claim 5, it is characterised in that：Described Wire clamp electric current line（7）Using insulation annealed copper wire, line footpath size and metal oxide arrester（2）Leakage current table is connected on body （6）Insulation annealed copper wire line footpath it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720068737.6U CN206671376U (en) | 2017-01-20 | 2017-01-20 | A kind of arrester charging test overvoltage protection dedicated testing wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720068737.6U CN206671376U (en) | 2017-01-20 | 2017-01-20 | A kind of arrester charging test overvoltage protection dedicated testing wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206671376U true CN206671376U (en) | 2017-11-24 |
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ID=60378957
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720068737.6U Active CN206671376U (en) | 2017-01-20 | 2017-01-20 | A kind of arrester charging test overvoltage protection dedicated testing wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206671376U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645825A (en) * | 2017-01-20 | 2017-05-10 | 国网河南省电力公司电力科学研究院 | Lightning arrester live-line test overvoltage protection special test wire |
| CN111668615A (en) * | 2020-06-05 | 2020-09-15 | 宝上电缆有限公司 | Wiring structure of anti-electricity-theft cable and use method thereof |
-
2017
- 2017-01-20 CN CN201720068737.6U patent/CN206671376U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645825A (en) * | 2017-01-20 | 2017-05-10 | 国网河南省电力公司电力科学研究院 | Lightning arrester live-line test overvoltage protection special test wire |
| CN111668615A (en) * | 2020-06-05 | 2020-09-15 | 宝上电缆有限公司 | Wiring structure of anti-electricity-theft cable and use method thereof |
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