CN112433174A - Auxiliary tool for testing alternating current leakage current under operating voltage of lightning arrester - Google Patents
Auxiliary tool for testing alternating current leakage current under operating voltage of lightning arrester Download PDFInfo
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- CN112433174A CN112433174A CN202011232067.XA CN202011232067A CN112433174A CN 112433174 A CN112433174 A CN 112433174A CN 202011232067 A CN202011232067 A CN 202011232067A CN 112433174 A CN112433174 A CN 112433174A
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- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims description 18
- 239000012212 insulator Substances 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 9
- 230000003028 elevating effect Effects 0.000 claims description 9
- 230000003137 locomotive effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 6
- 230000006978 adaptation Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000009194 climbing Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000008520 organization Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
Abstract
The invention discloses an auxiliary tool for testing alternating current leakage current under the operating voltage of an arrester, which comprises a testing mechanism, wherein the testing mechanism comprises a handle, a limiting ring, an insulating rod, a lead and a wire clamp, the wire clamp is fixedly arranged at one end of the insulating rod, the handle is fixedly welded at one end of the insulating rod, which is far away from the wire clamp, the handle is fixedly arranged at one side of the handle, and the handle is fixedly arranged with the wire clamp through a linkage rod. And the risk of work is greatly increased by the climbing operation.
Description
Technical Field
The invention relates to the technical field of current testing, in particular to an auxiliary tool for testing alternating current leakage current under the operating voltage of an arrester.
Background
The lightning arrester is an electrical appliance used for protecting electrical equipment from being damaged by high transient overvoltage and limiting follow current time and also limiting follow current assignment, is widely applied to a transformer substation, and has the performance of influencing safe and stable operation of a power grid. The alternating current leakage current under the operating voltage of the lightning arrester is an important means for judging the state of the lightning arrester, when the lightning arrester normally operates, a phase difference phi can be generated between a phase voltage U acting on the lightning arrester and Ix passing through the phase voltage U, an active component and a reactive component can be calculated as long as the phase voltage U and the Ix are measured, and then the state of the lightning arrester is judged, the alternating current leakage current under the operating voltage of the lightning arrester is mainly a capacitive component, and the larger the resistive component is, the higher the possibility that the lightning arrester is affected with damp and cracked is.
However, there are some disadvantages in the conventional using process, such as:
because the arrester in the transformer substation is generally higher in position, the condition that the position is higher is also often deposited to arrester discharge counter upper end bolt, the tester can just accomplish the wiring with the help of instrument such as insulating ladder, and the distance between the arrester three-phase is far away, generally have several groups of arresters in the transformer substation, the tester needs frequent from top to bottom, carry insulating ladder, very big influence work efficiency, and the operation of ascending a height greatly increased the risk of work, thereby provide an auxiliary tool that alternating current leaked the current test under the arrester operating voltage and solve this problem.
Disclosure of Invention
The invention aims to provide an auxiliary tool for testing alternating current leakage current under the operating voltage of an arrester, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the testing device comprises a testing mechanism, wherein the testing mechanism comprises a handle, a limiting ring, an insulating rod, a wire and a wire clamp, the wire clamp is fixedly installed at one end of the insulating rod, the handle is fixedly welded at one end, away from the wire clamp, of the insulating rod, the handle is fixedly installed at one side of the handle, the handle is fixedly installed with the wire clamp through a linkage rod, the limiting ring is fixedly welded on the surface of the top of the handle, the wire is fixedly installed at one side of the surface of the wire clamp, and one end, away from the wire clamp, of the wire penetrates through the limiting ring and extends to the; and the tester is fixedly arranged at one end of the lead extending to the outside of the limiting ring.
The wire clamp is made of conductive materials, and the handle are made of insulating materials.
Wherein, surface one side fixed mounting of insulator spindle has installation mechanism, one side of installation mechanism is rotated and is connected with elevating system, elevating system includes inner skleeve, lead screw, outer sleeve and motor, one side of installation mechanism is rotated and is connected with the inner skleeve, the outer sleeve has been cup jointed in the activity of bottom one side of inner skleeve, the inner wall bottom of outer sleeve is located between two parties has the motor through support fixed mounting, the fixed cover of output shaft of motor has connect the lead screw, the top of lead screw runs through the inner skleeve and extends to the inside of inner skleeve, lead screw and inner sk.
The sliding blocks are fixedly welded on two sides of the bottom of the inner sleeve, and the inner wall of the outer sleeve is provided with a limiting groove matched with the sliding blocks.
The side wall of the outer sleeve is provided with heat dissipation holes at two sides of the motor.
Wherein, installation mechanism includes fixed cover, dead lever and nut, the surperficial block of insulator spindle is connected with fixed cover, one side activity of fixed cover is pegged graft and is had the dead lever, the dead lever is located the inside one end of fixed cover and runs through the opposite side lateral wall of insulator spindle and fixed cover in proper order and extend to the outside of fixed cover, the dead lever extends to the outside one end of fixed cover and installs the nut through the screw thread, the one end of fixed cover rotates through rotating the seat and is connected with the inner skleeve.
The fixing rod is of a T-shaped structure, and a protective pad is movably sleeved on the surface of the fixing rod and positioned between the nut and the fixing sleeve.
The testing device comprises an outer sleeve, a testing instrument, a moving vehicle, a placing frame, a balancing weight and a testing table, wherein the moving vehicle is fixedly welded at the bottom of the outer sleeve, the placing frame is fixedly mounted on one side of the surface of the moving vehicle, which is located on the outer sleeve, the testing instrument is connected with the placing frame in a sliding mode, and the balancing weight is fixedly welded on the surface of one side, which.
The buffer mechanism comprises a buffer plate and first springs, the first springs are fixedly welded to the bottom of the inner wall of the placing frame, the buffer plate is fixedly welded to the top of the first springs, and the two ends of the buffer plate are connected with the inner wall of the placing frame in a sliding mode.
The limiting mechanism comprises a sliding rod, a second spring and a limiting plate, the sliding rod is movably inserted into the tops of the two sides of the placing rack, the limiting plate is fixedly welded at one end, close to the sliding rod, of the sliding rod, and the second spring is wound on the surface of the sliding rod and located between the limiting plate and the inner wall of the placing rack.
Compared with the prior art, the invention has the beneficial effects that:
1. the fastener is the conductor, link to each other with the wire, can convey leakage current to the tester and carry out the analysis, the opening and shutting of the handle accessible mechanical linkage control fastener on the insulating handle, when carrying out the test of the leakage current of alternating current under the arrester operating voltage, connect the debugging with the tester earlier, the handle on the operating handle realizes the fastener and the electricity of arrester discharge counter upper end bolt and is connected, take off the instrument after the measurement is accomplished, the insulating properties is good, and the operation is simple, can effectively avoid the risk of tester operation of ascending a height, very big improvement tester's efficiency.
2. Can avoid the staff to hold always and hold the insulator spindle for a long time through elevating system, can the starter motor, make the motor drive the lead screw and rotate, make the lead screw drive inner skleeve rebound in vertical direction, make the inner skleeve drive accredited testing organization rebound through installation mechanism, the staff only need rotate the insulator spindle angle regulation can, can promote accredited testing organization through the locomotive and remove, further reduction staff's intensity of labour, improved staff's work efficiency.
3. With swivel nut for dead lever and nut separation, then take the dead lever out, make dead lever and insulator spindle and fixed cover break away from, then extract fixed cover from the surface of insulator spindle, can make installation mechanism and the quick dismantlement of insulator spindle, thereby make accredited testing organization and elevating system carry out quick dismantlement through installation mechanism, be convenient for when not using, accomodate it and place.
4. The locomotive is at the in-process that removes, can play the effect of bradyseism in vertical direction under the elastic force effect of first spring, can protect the tester, and when placing the tester, can promote the limiting plate and remove to the direction of keeping away from each other, extrude the second spring, make the interval grow between the limiting plate, can place the tester on the surface of buffer board, then slowly loosen the limiting plate, under the elastic force effect of second spring, make the second spring promote the limiting plate and remove to the direction that is close to each other, make the limiting plate contradict with the tester, spacing fixed is carried out on the horizontal direction with the tester, stability when placing of tester is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the connection structure of the mounting mechanism and the insulating rod according to the present invention;
figure 4 is a schematic view of the connection structure of the outer sleeve and the inner sleeve of the present invention.
In the figure: 1-a testing mechanism; 11-a handle; 12-a handle; 13-a limit ring; 14-an insulating rod; 15-a wire; 16-wire clamp; 2-moving the vehicle; 3-mounting a mechanism; 31 fixing the sleeve; 32-a fixation rod; 33-a nut; 4-a lifting mechanism; 41-inner sleeve; 42-a screw rod; 43-an outer sleeve; 44-an electric motor; 5-a balancing weight; 6-a tester; 7-placing the rack; 8-a buffer mechanism; 81-a buffer plate; 82-a first spring; 9-a limiting mechanism; 91-a sliding bar; 92-a second spring; 93-position limiting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-4, the present invention provides a technical solution: an auxiliary tool for testing alternating current leakage current under operating voltage of a lightning arrester is disclosed, wherein the testing mechanism 1 comprises a handle 11, a handle 12, a limiting ring 13, an insulating rod 14, a wire 15 and a wire clamp 16, the wire clamp 16 is fixedly installed at one end of the insulating rod 14, the handle 11 is fixedly welded at one end, away from the wire clamp 16, of the insulating rod 14, the handle 12 is fixedly installed at one side of the handle 11, the handle 12 is fixedly installed with the wire clamp 16 through a linkage rod, the limiting ring 13 is fixedly welded on the surface of the top of the handle 11, the wire 15 is fixedly installed at one side of the surface of the wire clamp 16, and one end, away from the wire clamp 16, of the wire 15 penetrates through the limiting ring 13 and extends to the outside of the limiting ring 13; tester 6, wire 15 extends to the outside one end fixed mounting of spacing ring 13 has tester 6, fastener 16 is the conductor, link to each other with wire 15, can convey leakage current to tester 6 and carry out the analysis, the opening and shutting of handle 12 accessible mechanical linkage control fastener 16 on the insulating handle 11, when carrying out the test of the alternating current leakage current under the arrester operating voltage, connect the debugging with tester 6 earlier, handle 12 on the handle 11 realization fastener 16 is connected with the electricity of arrester discharge counter upper end bolt again, take off the instrument after the measurement is accomplished, the insulating properties is good, and easy operation can effectively avoid the risk of tester operation of ascending a height, very big improvement tester's efficiency.
Example two:
as a preferable scheme of the first embodiment, one side of the surface of the insulating rod 14 is fixedly provided with an installation mechanism 3, one side of the installation mechanism 3 is rotatably connected with an elevating mechanism 4, the elevating mechanism 4 comprises an inner sleeve 41, a lead screw 42, an outer sleeve 43 and a motor 44, one side of the installation mechanism 3 is rotatably connected with the inner sleeve 41, one side of the bottom of the inner sleeve 41 is movably sleeved with the outer sleeve 43, the central part of the bottom of the inner wall of the outer sleeve 43 is fixedly provided with the motor 44 through a bracket, an output shaft of the motor 44 is fixedly sleeved with the lead screw 42, the top of the lead screw 42 penetrates through the inner sleeve 41 and extends into the inner sleeve 41, the lead screw 42 is in threaded connection with the inner sleeve 41, the installation mechanism 3 comprises a fixed sleeve 31, a fixed rod 32 and a nut 33, the surface of the insulating rod 14 is connected with, the fixing rod 32 is positioned at one end inside the fixing sleeve 31 and sequentially penetrates through the insulating rod 14 and the other side wall of the fixing sleeve 31 and extends to the outside of the fixing sleeve 31, the nut 33 is installed at one end of the fixing rod 32 extending to the outside of the fixing sleeve 31 through a thread, one end of the fixing sleeve 31 is rotatably connected with the inner sleeve 41 through a rotating seat, the bottom of the outer sleeve 43 is fixedly welded with the moving vehicle 2, the placing rack 7 is fixedly installed on one side of the surface of the moving vehicle 2, which is positioned on the outer sleeve 43, the tester 6 is slidably connected with the placing rack 7, the balancing weight 5 is fixedly welded on the surface of one side of the moving vehicle 2, which is far away from the placing rack 7, the insulating rod 14 can be prevented from being always held by a worker through the lifting mechanism 4 and lifted for a long time, the motor 44 can be started, make inner skleeve 41 drive accredited testing organization 1 rebound through installation mechanism 3, the staff only need rotate insulator spindle 14 angle regulation can, can promote accredited testing organization 1 through locomotive 2 and remove, further reduce staff's intensity of labour, staff's work efficiency has been improved, swivel nut 33, make dead lever 32 and nut 33 separate, then take dead lever 32 out, make dead lever 32 break away from with insulator spindle 14 and fixed cover 31, then extract fixed cover 31 from the surface of insulator spindle 14, can make installation mechanism 3 and the quick dismantlement of insulator spindle 14, thereby make accredited testing organization 1 and elevating system 4 carry out quick dismantlement through installation mechanism 3, be convenient for when not using, accomodate it and place.
Example three:
as a preferred scheme of the second embodiment, a buffer mechanism 8 is fixedly mounted at the bottom of the inner wall of the placing frame 7, the buffer mechanism 8 includes a buffer plate 81 and first springs 82, a plurality of first springs 82 are fixedly welded at the bottom of the inner wall of the placing frame 7, the buffer plate 81 is fixedly welded at the top of the first springs 82, two ends of the buffer plate 81 are slidably connected with the inner wall of the placing frame 7, limit mechanisms 9 are fixedly mounted at two sides of the placing frame 7, each limit mechanism 9 includes a sliding rod 91, a second spring 92 and a limit plate 93, sliding rods 91 are movably inserted at the tops of two sides of the placing frame 7, the limit plate 93 is fixedly welded at one end of each sliding rod 91 close to each other, the second spring 92 is wound between the limit plate 93 and the inner wall of the placing frame 7 on the surface of the sliding rod 91, and the moving vehicle 2 moves, can play the effect of bradyseism in vertical direction under the spring action of first spring 82, can protect tester 6, and when placing tester 6, can promote limiting plate 93 and remove to the direction of keeping away from each other, extrude second spring 92, make the interval grow between the limiting plate 93, can place tester 6 on the surface of buffer board 81, then slowly loosen limiting plate 93, under the spring action of second spring 82, make second spring 82 promote limiting plate 93 and remove to the direction that is close to each other, make limiting plate 93 contradict with tester 6, spacing fixed is carried out with tester 6 on the horizontal direction, stability when placing of tester 6 is improved.
The working principle is as follows: when using, when carrying out the test of the leakage current that flows under the arrester operating voltage, earlier debug the tester 6 connection, handle 12 on 11 realization fastener 16 and arrester discharge counter upper end bolt's electricity is connected again, takes off the instrument after the measurement is accomplished, and insulating properties is good, and easy operation can effectively avoid the risk of tester operation of ascending a height, very big improvement tester's efficiency.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an appurtenance of AC leakage current test under arrester operating voltage which characterized in that includes:
the testing mechanism (1) comprises a handle (11), a handle (12), a limiting ring (13), an insulating rod (14), a wire (15) and a wire clamp (16), wherein the wire clamp (16) is fixedly installed at one end of the insulating rod (14), the handle (11) is fixedly welded at one end, away from the wire clamp (16), of the insulating rod (14), the handle (12) is fixedly installed at one side of the handle (11), the handle (12) is fixedly installed with the wire clamp (16) through a linkage rod, the limiting ring (13) is fixedly welded on the surface of the top of the handle (11), the wire (15) is fixedly installed at one side of the surface of the wire clamp (16), and one end, away from the wire clamp (16), of the wire (15) penetrates through the limiting ring (13) and extends to the outside of the limiting ring (13);
the tester (6), wire (15) extend to the outside one end fixed mounting of spacing ring (13) has tester (6).
2. The auxiliary tool for testing the alternating current leakage current under the operating voltage of the lightning arrester as claimed in claim 1, characterized in that: the wire clamp (16) is made of conductive materials, and the handle (11) and the handle (12) are made of insulating materials.
3. The auxiliary tool for testing the alternating current leakage current under the operating voltage of the lightning arrester as claimed in claim 1, characterized in that: the utility model discloses an insulator spindle, including insulator spindle (14), installation mechanism (3), one side of installation mechanism (3) is rotated and is connected with elevating system (4), elevating system (4) include inner skleeve (41), lead screw (42), outer sleeve (43) and motor (44), one side of installation mechanism (3) is rotated and is connected with inner skleeve (41), outer sleeve (43) have been cup jointed in the activity of bottom one side of inner skleeve (41), the inner wall bottom of outer sleeve (43) is located to have motor (44) through support fixed mounting between two parties, lead screw (42) have been cup jointed to the output shaft of motor (44) is fixed, inner skleeve (41) is run through and the inside that extends to inner skleeve (41) in the top of lead screw (42), lead screw (42) and inner sklee.
4. The auxiliary tool for testing the alternating current leakage current under the operating voltage of the lightning arrester as claimed in claim 3, characterized in that: the fixed welding in bottom both sides of inner sleeve (41) has the sliding block, the spacing groove with sliding block looks adaptation is seted up to the inner wall of outer sleeve (43).
5. The auxiliary tool for testing the alternating current leakage current under the operating voltage of the lightning arrester as claimed in claim 3, characterized in that: the side wall of the outer sleeve (43) and two sides of the motor (44) are both provided with heat dissipation holes.
6. The auxiliary tool for testing the alternating current leakage current under the operating voltage of the lightning arrester as claimed in claim 3, characterized in that: installation mechanism (3) are including fixed cover (31), dead lever (32) and nut (33), the surface block of insulator spindle (14) is connected with fixed cover (31), one side activity grafting of fixed cover (31) has dead lever (32), dead lever (32) are located the inside one end of fixed cover (31) and run through the opposite side lateral wall of insulator spindle (14) and fixed cover (31) in proper order and extend to the outside of fixed cover (31), nut (33) are installed through the screw thread to the one end that fixed cover (31) outside is extended in dead lever (32), the one end of fixed cover (31) is rotated through rotating the seat and is connected with inner skleeve (41).
7. The auxiliary tool for testing the alternating current leakage current under the operating voltage of the lightning arrester as claimed in claim 6, characterized in that: the fixing rod (32) is of a T-shaped structure, and a protective pad is movably sleeved on the surface of the fixing rod (32) and positioned between the nut (33) and the fixing sleeve (31).
8. The auxiliary tool for testing the alternating current leakage current under the operating voltage of the lightning arrester as claimed in claim 3, characterized in that: the fixed welding in bottom of outer sleeve (43) has locomotive (2), one side fixed mounting that the surface of locomotive (2) is located outer sleeve (43) has rack (7), tester (6) and rack (7) sliding connection, one side fixed surface welding that rack (7) were kept away from in locomotive (2) has balancing weight (5).
9. The auxiliary tool for testing the alternating current leakage current under the operating voltage of the lightning arrester as claimed in claim 8, wherein: the inner wall bottom fixed mounting of rack (7) has buffer gear (8), buffer gear (8) include buffer board (81) and first spring (82), the fixed welding in inner wall bottom of rack (7) has a plurality of first springs (82), the fixed welding in top of first spring (82) has buffer board (81), the both ends of buffer board (81) and the inner wall sliding connection of rack (7).
10. The auxiliary tool for testing the alternating current leakage current under the operating voltage of the lightning arrester as claimed in claim 8, wherein: the utility model discloses a rack, including rack (7), both sides fixed mounting have stop gear (9), stop gear (9) include slide bar (91), second spring (92) and limiting plate (93), the activity of both sides top of rack (7) is pegged graft and is had slide bar (91), the fixed welding of one end that slide bar (91) are close to each other has limiting plate (93), the winding has second spring (92) between the inner wall that the surface of slide bar (91) is located limiting plate (93) and rack (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011232067.XA CN112433174A (en) | 2020-11-06 | 2020-11-06 | Auxiliary tool for testing alternating current leakage current under operating voltage of lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011232067.XA CN112433174A (en) | 2020-11-06 | 2020-11-06 | Auxiliary tool for testing alternating current leakage current under operating voltage of lightning arrester |
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| Publication Number | Publication Date |
|---|---|
| CN112433174A true CN112433174A (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011232067.XA Pending CN112433174A (en) | 2020-11-06 | 2020-11-06 | Auxiliary tool for testing alternating current leakage current under operating voltage of lightning arrester |
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| Country | Link |
|---|---|
| CN (1) | CN112433174A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115097168A (en) * | 2022-06-23 | 2022-09-23 | 国网湖北省电力有限公司宜昌供电公司 | Multifunctional wiring device for live-line test of lightning arrester |
| CN117517849A (en) * | 2024-01-08 | 2024-02-06 | 滨州市沾化区建信工程质量检测有限公司 | Lightning protection detection device |
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| CN115097168A (en) * | 2022-06-23 | 2022-09-23 | 国网湖北省电力有限公司宜昌供电公司 | Multifunctional wiring device for live-line test of lightning arrester |
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| CN117517849A (en) * | 2024-01-08 | 2024-02-06 | 滨州市沾化区建信工程质量检测有限公司 | Lightning protection detection device |
| CN117517849B (en) * | 2024-01-08 | 2024-03-19 | 滨州市沾化区建信工程质量检测有限公司 | Lightning protection detection device |
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