CN108736376A - A kind of holder and method for electric transmission line lightning arrester maintenance - Google Patents
A kind of holder and method for electric transmission line lightning arrester maintenance Download PDFInfo
- Publication number
- CN108736376A CN108736376A CN201810811560.3A CN201810811560A CN108736376A CN 108736376 A CN108736376 A CN 108736376A CN 201810811560 A CN201810811560 A CN 201810811560A CN 108736376 A CN108736376 A CN 108736376A
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- Prior art keywords
- arrester
- shelf
- transmission line
- electric transmission
- holder
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Classifications
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- 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
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- Thermistors And Varistors (AREA)
Abstract
The invention discloses a kind of holders for electric transmission line lightning arrester maintenance, including：Substantially horizontally disposed backup plate and shelf, and the generally vertical left support plate and right support plate that is connect respectively with the left and right ends of the backup plate and shelf；The upper surface of the shelf is equipped with conductive flexible pad, and the flexible pad is grounded；The flexible pad has pressure sensor.Well-behaved invention can reinforce the management to arrester, increase safety, avoid arrester from damaging, while greatly improving working efficiency.
Description
Technical field
The present invention relates to a kind of holders and method for electric transmission line lightning arrester maintenance.
Background technology
Arrester is connected between cable and the earth, usually in parallel with by protection equipment.Arrester can be effectively protected
Communication equipment, once there is abnormal voltage, arrester will act, and play a protective role.It, should be frequent in day-to-day operation
Check that the pollution situation on the insulator surface of arrester will make voltage's distribiuting very not because when insulator surface is heavily contaminated
Uniformly.In the arrester for having parallel branches resistance, when the voltage's distribiuting of one of element increases, pass through its parallel resistance
In electric current will significantly increase, then may burn out parallel resistance and cause failure.Therefore, when arrestor porcelain bushing surface pollution severity
When, it is necessary to it cleans in time.The lead and down conductor of arrester are also checked simultaneously, are checked and are sealed at the lead of arrester upper end
It is whether good, check whether the cement joint close of insulator and flange connections is tight.
In the maintenance process to arrester, needs to remove arrester it is checked, when being overhauled on a large scale,
It needs to overhaul multiple arresters, if the arrester removed at will placed, it is possible to will overhaul and not overhaul lightning-arrest
Device mixes up, it is also possible to the phenomenon that arrester loss occurs.Simultaneously for the problem of the safety of maintenance, also to ensure its internal electricity
Amount is all exported, it is therefore desirable to which the arrester to removing maintenance reasonably place and manage.
Invention content
To solve the above problems, one aspect of the present invention provides a kind of branch for electric transmission line lightning arrester maintenance
Frame, including substantially horizontally disposed backup plate and shelf, the front of the backup plate are equipped with one or more openings outwardly U-shaped
Slot；The shelf is arranged in the lower section of the backup plate, and the upper surface of the shelf corresponds to the position of the U-type groove equipped with conduction
Flexible pad, and the flexible pad be grounded.
Further, the left and right ends of the backup plate and shelf are connected separately with generally vertical support plate, the shelf
It is electric conductor with support plate, and passes through the shelf and support plate earthing with the flexible pad.
Further, the support plate is equipped with length adjustment device between adjusting between the backup plate and the shelf
Away from.
Further, the upper surface of the flexible pad is equipped with the recess for accommodating arrester lower end.
Further, the shelf is equipped with pressure sensor, and the flexible pad is set on pressure sensor.
Another aspect of the present invention also provides a kind of method for electric transmission line lightning arrester maintenance, including：
Step S100 provides the holder as claimed in claim 5, and the flexible pad is kept to be grounded；
The lower end of arrester from first area is placed in the flexible pad by step S200；
Step S300, using residence time of the pressure sensor detection arrester on holder as the maintenance of the arrester
Time；
Step S400, when being greater than the set value the repair time, arrester of the judgement from first area is seriously polluted, concurrently
Go out alarm signal, service personnel is notified to overhaul the arrester in the second area close to first area.
Description of the drawings
Fig. 1 is the structural schematic diagram of the holder for electric transmission line lightning arrester maintenance of the present invention；
Fig. 2 is the cross section structure schematic diagram of the shelf of the holder for electric transmission line lightning arrester maintenance of the present invention；
Fig. 3 is the structural schematic diagram of 10KV R, D type arresters.
Reference numeral
1- backup plates；2-U type grooves；3- shelves；4- bottom plates；5- support plates；6- grooves；61- conductive rubber pads；62- pressure passes
Sensor；The first stretching structures of 7-；The second stretching structures of 8-；9- thickness face；21- nuts；22- full skirts；23- bolts.
Specific implementation mode
In some cases, the holder for electric transmission line lightning arrester maintenance of the invention includes：Substantially horizontally disposed
Backup plate and shelf, and the generally vertical left support plate and right support that is connect respectively with the left and right ends of the backup plate and shelf
Plate；The thickness of the backup plate is less than the distance between adjacent two panels silicon rubber umbrella skirt of arrester, and the front of the backup plate is equipped with one
The U-type groove of a or more opening outwardly；The shelf is arranged in the lower section of the backup plate, and the front and rear width of the shelf is more than
Equal to the depth of the U-type groove, the left and right width of the shelf is more than or equal to the width of the U-type groove；The upper table of the shelf
The position that face corresponds to the U-type groove is equipped with conductive flexible pad, and the flexible pad is grounded.The flexible pad of the conduction is used
In the ground terminal for accepting arrester, it can avoid ground terminal screw thread and damaged because colliding with, and the residual charge in releasable arrester.
In other cases, the rear shelves item to raise up, the rear shelves item are equipped in the rear edge of the flexible pad
Among the projection on the shelf of the U-type groove；The flexible pad forward edge and left and right edges respectively
Equipped with the preceding shelves item, left shelves item and right shelves item to raise up, the preceding shelves item, left shelves item and right shelves item are located at the U-type groove
Among projection on the shelf or except；And shelves item, preceding shelves item, left shelves item and right shelves item are formed at least after described
Part accommodates the recess at the arrester ground end.The recess allows the operator to arrester more conveniently
Ground terminal is placed on the suitable position of flexible pad.
Further, the flexible pad is movably disposed on the shelf so that the ground terminal when arrester is placed on
When the recess, the silica gel full skirt portion of arrester rests on the bottom of the U-type groove.It can make the dress by mobile flexible pad
Set the arrester suitable for placing various different sizes.
Further, the shelf and support plate are electric conductor, and pass through the shelf and support with the flexible pad
Plate earthing.Using electric conductor (such as sheet metal：Steel plate, aluminium sheet, copper coin etc.) shelf and support plate are manufactured, it both can be square
Just reliably flexible pad is grounded, and makes described device durable.In some cases, the shelf and the flexible pad
The part of contact has the structure for increasing frictional force, such as matches with the structure of the increase frictional force of the corresponding portion of the flexible pad
The protrusion of conjunction or structure of recess, such as salient point or concave point, burr or dimpled grain etc..
Further, the left support plate and right support plate are equipped with length adjustment device for adjusting the backup plate and described
Spacing between shelf is the half of arrester length to 4/5ths.
The method for placing arrester using the above-mentioned holder of the present invention, includes the following steps：
S10 provides the holder, and the flexible pad is kept to be grounded；
The ground terminal of arrester is placed in the flexible pad by S20；
The silicon rubber umbrella skirt of arrester is embedded in the U-type groove by S30.
Further, the flexible pad is adjusted before or after step S20 on the shelf to make in step position
The silica gel full skirt of arrester obliquely rests on the bottom of the U-type groove in S30.
Further, the spacing between the shelf and the backup plate is adjusted before or after step S20 to make in step
When the silica gel full skirt of arrester obliquely rests on the bottom of the U-type groove in rapid S30, the bottom of arrester and the U-type groove
Contact point and arrester the distance between ground terminal for arrester length half to 4/5ths.
In other embodiments, the holder for electric transmission line lightning arrester maintenance of the invention includes：It is set to water
The backup plate of square upward rectangle, the backup plate have upper and lower surface；The backup plate has certain thickness simultaneously, described
Thickness is less than the distance between adjacent two panels silicon rubber umbrella skirt of arrester, the thickness the backup plate of rectangle four edges it is vertical
Side is upwardly formed thickness face, at least one of which thickness face, is provided at least one in the horizontal direction into backup plate
The U-type groove of portion's recess；
The holder for electric transmission line lightning arrester maintenance further includes support plate and bottom plate, one end of the support plate with
The lower surface of the backup plate is fixedly connected, and the other end is fixedly connected with the upper surface of bottom plate, and the bottom plate is flat with the backup plate
Capable rectangular slab, while the area of the bottom plate is more than the area of the backup plate, for abutting ground, as entire for transmitting electricity
The bottom of the holder of leakage conductor maintenance；
The holder for electric transmission line lightning arrester maintenance further includes shelf, shelf setting backup plate and bottom plate it
Between, and it is parallel with backup plate and bottom plate, while being fixedly connected with support plate, shelf side corresponding with the U-type groove of backup plate
On upper surface, setting is fluted, conductive rubber pad is additionally provided on the groove, for placing arrester and carrying out arrester
Electric discharge；
Support plate tool is used to support the flexible of the length of plate there are two stretching structure, and the stretching structure includes the
One stretching structure and the second stretching structure, first stretching structure are arranged between backup plate and shelf, the described second flexible knot
Structure is arranged between shelf and bottom plate.
In other embodiments of the present invention, the support plate is set as scalable, is kept away for adjusting the placement
The height of thunder device.
In other embodiments of the present invention, the center of its corresponding conductive rubber pad in center of the U-type groove
Line, the angle with horizontal direction is 65-85 degree.
The mode arrester device in use, the one end for the arrester removed is placed in conductive rubber pad,
The other end is placed in the U-type groove of backup plate, adjusts the height of support plate, and the U-type groove is made to be in the adjacent two panels silicon rubber of arrester
Between glue umbrella, the arrester is preferably slant setting, and it is 65-85 degree that optimized angle, which is with the angle of horizontal direction, is kept away in this way
Thunder device can be clipped in relatively stable state in U-type groove, and convenient for managing and taking, conductive rubber pad not only plays protection and makees
With, while arrester can be facilitated to discharge as early as possible.
In other embodiments of the present invention, the method for placing arrester includes the following steps suddenly：
S100 provides above-mentioned arrester apparatus for placing；
S200 places the arrester removed vertically, and it is horizontality to make the silicon rubber umbrella skirt of arrester, and arrester is erected
Histogram to one end be placed in shelf conductive rubber pad, while arrester abuts against in U-type groove；
S300 adjusts the second stretching structure in support plate, described after setting adjustment to be overhauled for electric transmission line lightning arrester
The distance of backup plate to bottom plate of holder be the first height, first height is for being suitble to staff to take；
S400 adjusts the first stretching structure in support plate, described after setting adjustment to be overhauled for electric transmission line lightning arrester
Holder backup plate to bottom plate distance be second height, so that U-type groove is between the adjacent two panels silicon rubber umbrella skirt of arrester.
The above method can also include S500：When the distance of the backup plate to bottom plate is the second height, arrester exceeds
The length of the part of backup plate is more than the half of the second height or when staff takes highly desirable adjustment, readjusts institute
The second stretching structure and the first stretching structure are stated, the backup plate of the holder for electric transmission line lightning arrester maintenance is on earth after adjustment
The distance of plate is set as third height, and the length of part of the arrester beyond backup plate is made to be not more than the one third of third height,
And staff is suitble to take.
In other embodiment, the method can also include that S600 uses instrument test after placing a period of time
Whether the arrester also charges, if arrester is not charged, is taken from the holder overhauled for electric transmission line lightning arrester
Under be detected.
The present invention provides the method for placing arrester, the problem of improving current arrester checks and managerial confusion, energy
In enough working at the scene, reinforce the management to arrester, increases safety, improve work efficiency simultaneously, facilitate staff
Operation.
For the ease of the understanding of those skilled in the art, with reference to embodiment, the invention will be further described.
In one embodiment of the invention, as shown in Figure 1, the holder for electric transmission line lightning arrester maintenance of the present invention
Including：It is set to the backup plate 1 of the rectangle in horizontal direction, the backup plate 1 has upper and lower surface；The backup plate 1 simultaneously
Thickness be 5-20mm, the thickness is less than the distance between adjacent two panels silicon rubber umbrella skirt of arrester 22, and the thickness is in square
The Vertical Square of the four edges of the backup plate of shape is upwardly formed thickness face 9, at least one of which thickness face 9, is provided at least one
It is a in the horizontal direction to the U-type groove 2 of the inner recess of backup plate 1, upper terminal bolt 23 or nut 21 for accommodating arrester or
Contraction flow region between the adjacent silicon rubber umbrella skirt in top 22.For example, R, D type arrester length of 10KV common in the art is
270mm, a diameter of 110mm of silicon rubber umbrella skirt 2, the nut 21 that upper and lower side is equipped with M12 bolts 23 and is socketed on bolt 23；
Therefore, the width of the U-type groove of the apparatus for placing of this kind of arrester is preferably arranged to 25-120mm.In some cases, multiple U-type grooves
Width can be different, to adapt to different arrester positions.
The holder for electric transmission line lightning arrester maintenance further includes support plate 5 and bottom plate 4, and the one of the support plate 5
End be fixedly connected with the lower surface of the backup plate 1, the other end is fixedly connected with the upper surface of bottom plate 4, the bottom plate 4 be with it is described
The parallel rectangular slab of backup plate 1, while the area of the bottom plate 4 is more than the area of the backup plate 1, such as the backup plate is typically chosen
The rectangular slab of 50 × 70cm, it is preferable to use the rectangular slabs of 60 × 90cm for the bottom plate.The backup plate 1 and bottom plate 4 all use conduction
Material (such as metal etc.) is made.Bottom of the bottom plate 4 as the entire holder for electric transmission line lightning arrester maintenance, and
(such as passing through ground wire etc.) carries out grounding connection in an electrically conductive manner with ground.
The holder for electric transmission line lightning arrester maintenance further includes shelf 3, and the shelf 3 is arranged at backup plate 1 and bottom
Between plate 4, and it is parallel with backup plate 1 and bottom plate 4, while being fixedly connected with support plate 5,2 phase of U-type groove of the shelf 3 and backup plate 1
On the upper surface for the side answered, it is arranged fluted 6, conductive rubber pad 61 is also embedded in the groove 6, for placing arrester
And carry out the electric discharge of arrester.
The support plate 5 has the first stretching structure 7 and the second stretching structure 8, the length for adjusting support plate 5, institute
7 structure of the first flexible knot is stated to be arranged between backup plate 1 and shelf 3, second stretching structure 8 setting shelf 3 and bottom plate 4 it
Between.Can by the first stretching structure 7 adjust the distance between backup plate 1 and shelf 3, can also the second stretching structure 8 adjust put
The distance between plate 3 and bottom plate 4, to adjust the height of entire holder to adapt to various sizes of arrester.
In some embodiments of the invention, the first epitaxial lateral overgrowth equipped with conductive rubber pad 61 of the shelf 3, which is stretched, to be made
Upright projection of the center on shelf 3 of the U-type groove 2 is located at the center and opposite with the first side the of conductive rubber pad 61
Between two sides.In some cases, the line at the center of the U-type groove and the center of its corresponding conductive rubber pad, with water
Square to angle be 65-85 degree.
It is led in the holder for electric transmission line lightning arrester maintenance in use, the one end for the arrester removed is placed on
On electric rubber pad 61, the other end is placed in the U-type groove 2 of backup plate, adjusts the height of support plate 5, so that the U-type groove 2 is in and is kept away
Between the adjacent two panels silicon rubber umbrella skirt of thunder device 22 or at the nut 21 in arrester upper end or bolt 23, the arrester is excellent
It is selected as slant setting, it is 65-85 degree that optimized angle, which is with the angle of horizontal direction, and such arrester can be with relatively stable shape
State is clipped in U-type groove 2, convenient for managing and taking, conductive rubber pad 61 not only play protect the end of bolt 23 do not collided and
The effect of damage, while the electricity of arrester institute band can be exported by shelf 3, support plate 5 and bottom plate 4, to accelerate to keep away
The velocity of discharge of thunder device shortens the repair time of arrester.
The present embodiment also provides a kind of method for placing arrester, and the step of this method includes：
The arrester removed is placed vertically, it is horizontality to make the silicon rubber umbrella skirt of arrester, and arrester is square vertically
To one end be placed in shelf conductive rubber pad, while arrester abuts against in U-type groove；
Adjust the second stretching structure in support plate, the holder for electric transmission line lightning arrester maintenance after setting adjustment
The distance of backup plate to bottom plate be the first height, first height is for being suitble to staff to take；
Adjust the first stretching structure in support plate, the holder for electric transmission line lightning arrester maintenance after setting adjustment
Backup plate to bottom plate distance be second height, so that U-type groove is between the adjacent two panels silicon rubber umbrella skirt of arrester.
The method can also include：When the distance of the backup plate to bottom plate is the second height, arrester exceeds backup plate
The length of part be more than the half of the second height or when staff takes highly desirable adjustment, readjust described
Two stretching structures and the first stretching structure, the backup plate of the holder for electric transmission line lightning arrester maintenance is to bottom plate after adjustment
Distance is set as third height, so that the length of part of the arrester beyond backup plate is not more than the one third of third height, and fit
Staff is closed to take.
In other embodiment, the method can also include, after placing a period of time, described in instrument test
Whether arrester also charges, if arrester is not charged, removed from the holder overhauled for electric transmission line lightning arrester into
Row detection.
In another embodiment of the present invention, pressure sensor 62 is additionally provided in the groove 6 of the holder, pressure passes
The lower end of sensor 62 is placed in the bottom of groove 6, and conductive rubber pad 61 is placed in the upper end of pressure sensor 62, when from first area
Arrester when being positioned in conductive rubber pad 61, pressure sensor 62 detects the pressure that the weight of arrester generates simultaneously will detection
To pressure value and corresponding detection time be sent to controller (not shown).The controller receives pressure value and corresponding inspection
The time is surveyed, calculates standing time of the arrester on holder as the repair time.When the repair time being more than threshold value, judgement comes from
The arrester of first area is seriously polluted, and sends out alarm signal, notifies service personnel to the second area close to first area
In arrester overhauled, so as to the pollution problem of timely processing arrester, avoid leading to accident because arrester pollutes
Occur.
Further, when being overhauled for m arrester in first area, the repair time of each arrester is
{t1,…,ti,…,tm, calculate mean time to overhaulIfAlarm signal is then sent out, is shown
The arrester of the second area adjacent with first area is seriously polluted, and notify into administrative staff to the arrester of second area into
Row maintenance, wherein tcFor the history repair time；TH1It, can be according to important level, the local environment etc. of supply line for first threshold
Situation is provided namely important level is higher or the more severe first threshold of local environment is with regard to smaller, and usual value is, such as 15
~30%, preferably 25%, 30% etc..
Further, the history repair timeWherein tc' in the previous calculating nearest apart from this calculating
The history repair time used, the reasonability for sending out alarm signal can be stepped up in this way, in the case where ensureing to power, keep away
Exempt from cost increase caused by excessively frequently overhauling.
Further, existWhen, the repair time of each arrester is handled to obtain { t1',…,
ti',…tm' andWhereinThe value that i is 1 to m, tmaxFor { t1,…,ti,…,tmIn maximum value, and
t1'≥t2'≥…≥tm'；Then variance is calculatedIf s2≥sc 2, and
Alarm signal is then sent out, alarm signal, wherein s are not otherwise sent outc 2For history variance.By this processing, it is possible to prevente effectively from because non-
Pollution cause (such as arrester failure itself, service personnel error etc.) cause the arrester repair time long caused by excessively
Frequent alarm.
Further, history varianceWherein { s1 2,…,sn 2It is apart from this nearest n computations of calculating
The middle history variance used can improve the reasonability of history variance setting in this way, the case where ensureing to power
Under, it avoids excessively frequently overhauling.
The preferred embodiment of the above, only this practicality invention, cannot limit this practicality invention practical range with this；It is all
According to simple equivalent changes and modifications made by scope of the present invention patent and creation description, it all should still belong to the present invention
In the range of patent covers.
Claims (10)
1. a kind of holder for electric transmission line lightning arrester maintenance, including substantially horizontally disposed backup plate and shelf, the backup plate
Front be equipped with one or more opening U-type grooves outwardly；The shelf is arranged in the lower section of the backup plate, the shelf
The position that upper surface corresponds to the U-type groove is equipped with conductive flexible pad, and the flexible pad is grounded.
2. the holder for electric transmission line lightning arrester maintenance according to claim 1 a, wherein left side for the backup plate and shelf
Right both ends are connected separately with generally vertical support plate, and the shelf and support plate are electric conductor, and logical with the flexible pad
Cross the shelf and support plate earthing.
3. the holder for electric transmission line lightning arrester maintenance according to claim 2, wherein the support plate is equipped with length
Regulating device is used to adjust the spacing between the backup plate and the shelf.
4. the holder for electric transmission line lightning arrester maintenance according to claim 1, wherein the upper surface of the flexible pad
Equipped with the recess for accommodating arrester lower end.
5. the holder for electric transmission line lightning arrester maintenance as claimed in one of claims 1-4, wherein the shelf
It is equipped with pressure sensor, the flexible pad is set on pressure sensor.
6. a kind of method for electric transmission line lightning arrester maintenance, including：
Step S100 provides the holder as claimed in claim 5, and the flexible pad is kept to be grounded；
The lower end of arrester from first area is placed in the flexible pad by step S200；
Step S300 detects arrester in the residence time on holder as when the maintenance of the arrester using pressure sensor
Between；
Step S400, when being greater than the set value the repair time, arrester of the judgement from first area is seriously polluted, and sends out announcement
Alert signal, notifies service personnel to overhaul the arrester in the second area close to first area.
7. the method for electric transmission line lightning arrester maintenance according to claim 6, wherein in step S400, right
When the m arrester in first area is overhauled, the repair time of each arrester is { t1,…,ti,…,tm, it calculates
Mean time to overhaulIfThen send out alarm signal, wherein tcFor the history repair time；TH1
For first threshold, value is 15~30%, preferably 25%, 30% etc..
8. the method for electric transmission line lightning arrester maintenance according to claim 7, wherein described in step S400
The history repair timeWherein tc' it is the history repair time used in previous calculating.
9. according to the method for being used for electric transmission line lightning arrester maintenance described in claim 7 or 8, wherein in step S400,When, repair time and history repair time to each arrester are normalized to obtain { t1',…,
ti',…tm' andWhereinThe value that i is 1 to m, tmaxFor { t1,…,ti,…,tmIn maximum value, and
t1'≥t2'≥…≥tm'；Then variance is calculatedIf s2≥sc 2, and
Alarm signal is then sent out, alarm signal, wherein s are not otherwise sent outc 2For history variance.
10. the method for electric transmission line lightning arrester maintenance according to claim 9, wherein in step S400, history
VarianceWherein { s1 2,…,sn 2It is that the history variance used in nearest n computations is calculated apart from this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811560.3A CN108736376B (en) | 2018-07-23 | 2018-07-23 | Method for overhauling lightning arrester of power transmission line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811560.3A CN108736376B (en) | 2018-07-23 | 2018-07-23 | Method for overhauling lightning arrester of power transmission line |
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| CN108736376B CN108736376B (en) | 2020-02-07 |
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| CN201810811560.3A Expired - Fee Related CN108736376B (en) | 2018-07-23 | 2018-07-23 | Method for overhauling lightning arrester of power transmission line |
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| CN108736376B (en) | 2020-02-07 |
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