CN105846330A - Special assorted tool for changing leakage current meter of lightning arrester in live-working state and working method - Google Patents
Special assorted tool for changing leakage current meter of lightning arrester in live-working state and working method Download PDFInfo
- Publication number
- CN105846330A CN105846330A CN201610366849.XA CN201610366849A CN105846330A CN 105846330 A CN105846330 A CN 105846330A CN 201610366849 A CN201610366849 A CN 201610366849A CN 105846330 A CN105846330 A CN 105846330A
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- China
- Prior art keywords
- leakage current
- short circuit
- current table
- upper cover
- box body
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- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides a special assorted tool for changing a leakage current meter of a lightning arrester in a live-working state. The tool comprises a tool box, the tool box comprises an upper cover and a box body, the upper cover and the box body are made of insulating materials, screw holes are formed in the upper cover and the box body, the position of the screw hole in the upper cover corresponds to the position of the screw hole in the box body, an insulating support is connected between the screw hole in the upper cover and the screw hole in the box body, and the insulating support is a porcelain insulator or a composite insulator. The tool provided by the invention guarantees a new working mode of changing the leakage current meter of the lightning arrester in the live-working state, thereby avoiding the power cut demand.
Description
Technical field
The present invention relates to a kind of apparatus for examination and repair to spark gap charged for replacement leakage current table.
Background technology
One of spark gap important protection equipment being to ensure that safe operation of power system, is mainly used in restriction system the most electric
Pressure, leakage current is a very important reference index of examination spark gap quality, and if leakage current table breaks down
Be likely to result in leakage current misreads erroneous judgement, and therefore the moment keeps leakage current of an arrester table status most important.Mesh
Front operation maintenance personnel is changed leakage current table and is mostly taked to first pass through scheduling application power failure, completes event under the not charged state of equipment
The replacing of barrier leakage current table, the time between overhauls(TBO) is very long and reduces system power supply reliability.
Summary of the invention
It is an object of the invention to provide a kind of for spark gap charged for replacement leakage current table special complete instrument and work
Industry method, it is possible to achieve replacing to surge arrester failure leakage current table in the case of charged, it is to avoid application scheduling has a power failure, joint
Make an appointment, improve system power supply reliability.
The technical scheme is that
For spark gap charged for replacement leakage current table special complete instrument, including workbox, workbox includes upper cover and box body,
Upper cover and box body are insulant, are equipped with screw on upper cover and box body, the position of the screw on the screw of upper cover and box body
Putting corresponding, connecting between screw and the screw of box body of upper cover has insulation column, and insulation column is porcelain insulator or compound exhausted
Edge, insulation column two ends are provided with screw rod；Tray interior is placed with down conductor continuity test instrument, circuit tester and with fixing
The short circuit copper strips of bolt.
Upper cover and box body are made by epoxy resin.
Screw is positioned at the corner of upper cover and the corner of box body.
Short circuit copper strips is two.
The cross section of short circuit copper strips is 60mm*10mm, a length of 0.8m.
Special complete instrument described in employing is for the operational method of spark gap charged for replacement leakage current table, concrete steps
For:
Step one: spark gap connects leakage current table, operating personnel, before changing fault leakage current table, confirms this spark gap
Current in resistance property live detection result is qualified, and lightning arrester body is without exception；If lightning arrester body existing defects, stop operation；
Step 2: operating personnel uses down conductor continuity test instrument that with main earth mat, this arrester ground downlead is connected feelings
Condition the most well judges, arrester ground should be reliable；
Step 3: operating personnel uses upper cover, box body and insulation column to be assembled into easy insulating support, then starts operation；
The purpose using insulating support is to protect operating personnel, prevents operating personnel to be subjected to the suspension electricity that maloperation may cause
Position injury；
Step 4: operating personnel uses the short circuit copper strips with fixing bolt leakage current table short circuit, and short circuit copper strips should be reliable
Short circuit, now leakage current meter reading should make zero, and uses circuit tester to measure whether leakage current table makes leakage current table after short circuit
Upper lead-in wire and down conductor are reliably connected；
Step 5: after reliable short circuit leakage current table, leakage current table is replaced by use instrument, the leakage electricity after replacing
Stream table answers reading good；
Step 6: remove short circuit copper strips；
Step 7: site clearing, confirms without leaving over object.
In step 4, operating personnel use two short circuit copper strips with fixing bolt leakage current table short circuit, two
Short circuit copper strips all should reliable short circuit, now leakage current meter reading should make zero, and uses two to be in order at dual fail-safe and considers, prevents out
Existing one occurs that loose or dislocation situation occurs.
The instrument of the present invention ensure that the new job mode that can carry out in the energized state changed by leakage current of an arrester table,
Avoid power failure demand；The complete placement of specific purpose tool, wiring is simple and reliable, it is simple to carry installation, time saving and energy saving, can greatly carry
High workload efficiency；Combined insulating support, safety during more preferable support personnel's operation.
After confirming that lightning arrester body is without exception, operating personnel can use this special complete instrument to carry out leakage current table
Change.Operating personnel dresses insulating boot under guaranteeing arrester ground credible event and stands in and utilize two on dedicated insulated bracket
With the short circuit copper strips of fixing bolt reliable for leakage current table short circuit, then use Work tool that fault leakage current table is carried out
Change, after replacing, guarantee that measuring leakage current table is reliably connected with major loop, finally removes short circuit copper strips, site clearing.This is specially
Ensure that the new job mode that can carry out in the energized state changed by leakage current of an arrester table with tool set, it is to avoid have a power failure
Demand；The complete placement of specific purpose tool, wiring is simple and reliable, it is simple to carry installation, time saving and energy saving, can be greatly enhanced work effect
Rate；Combined insulating support, safety during more preferable support personnel's operation, applied range, have good market prospect and
Using value.
The invention has the beneficial effects as follows:
(1) this device passes through insulating support and short circuit copper strips, and being effectively guaranteed the replacing of leakage current of an arrester table can be charged
The new job mode that carries out under state, it is to avoid power failure demand；
(2) this device passes through the complete placement of specific purpose tool, and wiring is simple and reliable, it is simple to carry installation, time saving and energy saving, can be greatly
Improve work efficiency；
(3) this device passes through simple combination formula insulating support, has preferably ensured safety during personnel's operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the fundamental diagram of the operational method step 2 of the present invention；
Fig. 3 is operational method step 4 and the fundamental diagram of step 5 of the present invention.
In figure: 1, insulator, 2, box body, 3, down conductor continuity test instrument, 4, circuit tester, 5, adjustable wrench, 6, slow-witted
Spanner, 7, insulation column, 8, short circuit copper strips with fixing bolt, 9, screw, 10, upper cover.
Detailed description of the invention
As it is shown in figure 1, the present invention is when carrying out the work of spark gap charged for replacement leakage current table, this special complete instrument can
To carry out modularization assembling, multiple specific purpose tool compound mode.
This special complete instrument entirety is a workbox, and the upper cover 10 in workbox and box body 2 are exhausted by epoxy resin etc.
The compacting of edge material forms, and the corner correspondence position at upper cover 10 and box body 2 all has screw 9, and the screw 9 of upper cover 10 and box body 2 is used
In fixed insulation pillar 7, insulation column 7 should be, intensity reliable porcelain insulator good with full skirt, insulation or compound inslation
Son, there is screw rod at insulator 1 two ends, are securable to the screw 9 of corner.
Staff can stand on above the upper cover 10 in workbox when charged for replacement leakage current table 13；In box body 2
There are placement down conductor continuity test instrument 3, circuit tester 4, adjustable wrench 5, fork spanner 6, insulation column 7 and with fixing spiral shell in portion
The short circuit copper strips 8 of bolt, short circuit copper strips 8 is two, and cross section is 60mm*10mm, a length of 0.8m.
The concrete steps of operational method:
Step one: operating personnel, before changing fault leakage current table 13, confirms this spark gap 1 current in resistance property live detection result
Qualified, lightning arrester body is without exception；If lightning arrester body existing defects, this work can not be carried out.
Step 2: as in figure 2 it is shown, under operating personnel uses down conductor continuity test instrument 3 to draw this arrester ground
Line 12 the most well judges with main earth mat connection, and spark gap 1 ground connection should be reliable.
Step 3: operating personnel uses upper cover 10, box body 2 and insulation column 7 to assemble easy insulating support, uses absolutely
Should confirm before edge support that support is the most steady, then start operation；The purpose using insulating support is to protect operating personnel, anti-
Only operating personnel is subjected to the floating potential injury that maloperation may cause.
As it is shown on figure 3,
Step 4: operating personnel uses two 8 leakage current table 13 short circuits of short circuit copper strips with fixing bolt, and two are intended to
Reliable short circuit, now leakage current table 13 reading should return 0, uses circuit tester 4 to measure whether leakage current table 1 makes leakage after short circuit
On ammeter, lead-in wire 11 and down conductor 12 are reliably connected.Use two to be in order at dual fail-safe to consider, prevent one and go out
Existing loose or dislocation situation occurs.
Step 5: after reliable short circuit leakage current table 13, uses the Work tool such as adjustable wrench 5, fork spanner 6 to leakage electricity
Stream table is replaced, and the leakage current table 13 after replacing answers reading good.
Step 6: remove short circuit copper strips 8.
Step 7: site clearing, confirms without leaving over object.
Claims (7)
1., for spark gap charged for replacement leakage current table special complete instrument, including workbox, workbox includes upper cover and box
Body, it is characterised in that: upper cover and box body are insulant, are equipped with screw on upper cover and box body, the screw of upper cover and box
The position of the screw on body is corresponding, and connecting between screw and the screw of box body of upper cover has insulation column, and insulation column is porcelain
Insulator or composite insulator, insulation column two ends are provided with screw rod；Tray interior be placed with down conductor continuity test instrument, ten thousand
With table and with the short circuit copper strips of fixing bolt.
It is the most according to claim 1 for spark gap charged for replacement leakage current table special complete instrument, it is characterised in that:
Upper cover and box body are made by epoxy resin.
It is the most according to claim 1 for spark gap charged for replacement leakage current table special complete instrument, it is characterised in that:
Screw is positioned at the corner of upper cover and the corner of box body.
It is the most according to claim 1 for spark gap charged for replacement leakage current table special complete instrument, it is characterised in that:
Short circuit copper strips is two.
5. according to described in claim 1 or 4 for spark gap charged for replacement leakage current table special complete instrument, its feature exists
In: the cross section of short circuit copper strips is 60mm*10mm, a length of 0.8m.
6. use special complete instrument as claimed in claim 1 for the operator of spark gap charged for replacement leakage current table
Method, it is characterised in that: concretely comprise the following steps:
Step one: spark gap connects leakage current table, operating personnel, before changing fault leakage current table, confirms this spark gap
Current in resistance property live detection result is qualified, and lightning arrester body is without exception；If lightning arrester body existing defects, stop operation；
Step 2: operating personnel uses down conductor continuity test instrument that with main earth mat, this arrester ground downlead is connected feelings
Condition the most well judges, arrester ground should be reliable；
Step 3: operating personnel uses upper cover, box body and insulation column to be assembled into easy insulating support, then starts operation；
The purpose using insulating support is to protect operating personnel, prevents operating personnel to be subjected to the suspension electricity that maloperation may cause
Position injury；
Step 4: operating personnel uses the short circuit copper strips with fixing bolt leakage current table short circuit, and short circuit copper strips should be reliable
Short circuit, now leakage current meter reading should make zero, and uses circuit tester to measure whether leakage current table makes leakage current table after short circuit
Upper lead-in wire and down conductor are reliably connected；
Step 5: after reliable short circuit leakage current table, leakage current table is replaced by use instrument, the leakage electricity after replacing
Stream table answers reading good；
Step 6: remove short circuit copper strips；
Step 7: site clearing, confirms without leaving over object.
Operational method for spark gap charged for replacement leakage current table the most according to claim 6, it is characterised in that: step
In rapid four, operating personnel uses two short circuit copper strips with fixing bolt leakage current table short circuit, and two short circuit copper strips are equal
Should reliable short circuit, now leakage current meter reading should make zero, and uses two to be in order at dual fail-safe and considers, prevents an appearance
Loose or dislocation situation occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366849.XA CN105846330B (en) | 2016-05-30 | 2016-05-30 | For arrester charged for replacement leakage current table special complete instrument and operational method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366849.XA CN105846330B (en) | 2016-05-30 | 2016-05-30 | For arrester charged for replacement leakage current table special complete instrument and operational method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105846330A true CN105846330A (en) | 2016-08-10 |
| CN105846330B CN105846330B (en) | 2017-12-19 |
Family
ID=56595011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610366849.XA Active CN105846330B (en) | 2016-05-30 | 2016-05-30 | For arrester charged for replacement leakage current table special complete instrument and operational method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105846330B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525998A (en) * | 2017-09-08 | 2017-12-29 | 广东电网有限责任公司东莞供电局 | System and method for detecting leakage current of zinc oxide arrester |
| CN110546836A (en) * | 2017-04-21 | 2019-12-06 | 利塔尔两合公司 | Method and system for the automated support of a connection process of components, in particular components arranged in a switchgear cabinet or on an assembly system |
| CN111293626A (en) * | 2018-12-07 | 2020-06-16 | 国网内蒙古东部电力有限公司经济技术研究院 | Live replacement method based on lightning protection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5558469A (en) * | 1978-10-27 | 1980-05-01 | Hitachi Ltd | Leakage current detector of arrester |
| CN203722100U (en) * | 2014-02-18 | 2014-07-16 | 山西太钢不锈钢股份有限公司 | Portable insulation platform |
| CN204366867U (en) * | 2015-01-04 | 2015-06-03 | 江苏省电力公司淮安供电公司 | Leakage current of an arrester table dismounting support |
| CN105116253A (en) * | 2015-08-25 | 2015-12-02 | 国网新疆电力公司昌吉供电公司 | Live dismounting structure of lightning arrester on-line monitoring device |
| CN205693210U (en) * | 2016-05-30 | 2016-11-16 | 国网河南省电力公司电力科学研究院 | For spark gap charged for replacement leakage current table special complete instrument |
-
2016
- 2016-05-30 CN CN201610366849.XA patent/CN105846330B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5558469A (en) * | 1978-10-27 | 1980-05-01 | Hitachi Ltd | Leakage current detector of arrester |
| CN203722100U (en) * | 2014-02-18 | 2014-07-16 | 山西太钢不锈钢股份有限公司 | Portable insulation platform |
| CN204366867U (en) * | 2015-01-04 | 2015-06-03 | 江苏省电力公司淮安供电公司 | Leakage current of an arrester table dismounting support |
| CN105116253A (en) * | 2015-08-25 | 2015-12-02 | 国网新疆电力公司昌吉供电公司 | Live dismounting structure of lightning arrester on-line monitoring device |
| CN205693210U (en) * | 2016-05-30 | 2016-11-16 | 国网河南省电力公司电力科学研究院 | For spark gap charged for replacement leakage current table special complete instrument |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110546836A (en) * | 2017-04-21 | 2019-12-06 | 利塔尔两合公司 | Method and system for the automated support of a connection process of components, in particular components arranged in a switchgear cabinet or on an assembly system |
| CN110546836B (en) * | 2017-04-21 | 2021-08-24 | 利塔尔两合公司 | Method and system for automated support of a connection process |
| CN107525998A (en) * | 2017-09-08 | 2017-12-29 | 广东电网有限责任公司东莞供电局 | System and method for detecting leakage current of zinc oxide arrester |
| CN111293626A (en) * | 2018-12-07 | 2020-06-16 | 国网内蒙古东部电力有限公司经济技术研究院 | Live replacement method based on lightning protection device |
| CN111293626B (en) * | 2018-12-07 | 2021-09-28 | 国网内蒙古东部电力有限公司经济技术研究院 | Live replacement method based on lightning protection device |
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| Publication number | Publication date |
|---|---|
| CN105846330B (en) | 2017-12-19 |
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