CN214477986U - 0.4 kilovolt clamp type grounding wire tool - Google Patents
0.4 kilovolt clamp type grounding wire tool Download PDFInfo
- Publication number
- CN214477986U CN214477986U CN202120599666.9U CN202120599666U CN214477986U CN 214477986 U CN214477986 U CN 214477986U CN 202120599666 U CN202120599666 U CN 202120599666U CN 214477986 U CN214477986 U CN 214477986U
- Authority
- CN
- China
- Prior art keywords
- clamp
- clamping plate
- kilovolt
- splint
- inlay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 230000009471 action Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 abstract 1
- 210000000080 chela (arthropods) Anatomy 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 241001423398 Ruscus hypoglossum Species 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000006173 Good's buffer Substances 0.000 description 1
- 241000405070 Percophidae Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Abstract
The utility model provides a 0.4 kilovolt clamp formula earth connection instrument relates to 35 kilovolt transformer substation's electric wire ground connection auxiliary assembly field, has solved the earth connection and has articulated consuming time, articulate insecure or the problem that falls. The tool comprises a first clamping plate and a second clamping plate which are made of conductive materials, wherein the middle parts of the first clamping plate and the second clamping plate are movably connected through a rotating shaft, at least one first locking screw is arranged on the outer side of the second clamping plate, the lower ends of the first clamping plate and the second clamping plate can be detachably connected with an operating rod, an insulating handle is sleeved on the operating rod, and a convex spring is arranged between the lower parts of the first clamping plate and the second clamping plate; first splint and second splint all include the binding clip and the inlay of the aluminum alloy material of an organic whole setting, and the inlay is located aluminum alloy binding clip lower extreme, and the inlay interpolation action bars, binding clip front end are duckbilled formula and keep silent, duckbilled formula pincers department is equipped with a plurality of circular arc bayonets. The utility model discloses be applied to in the daily scarce and switching operation work that disappears of 35 kilovolts of transformer substation, improved work efficiency.
Description
Technical Field
The utility model relates to a 35 kilovolt transformer substation electric wire ground connection auxiliary assembly field, in particular to 0.4 kilovolt clamp formula earth connection instrument.
Background
The grounding wire is a safety tool for temporarily short-circuiting and grounding power-cut equipment, and has the functions of preventing the equipment from suddenly coming and preventing the adjacent high-voltage live equipment from generating induced voltage to harm a human body when the high-voltage equipment is subjected to power-cut maintenance or other work, and simultaneously discharging residual charges of the power-cut equipment.
In the routine operation and maintenance of a 35 kilovolt substation, a 0.4 kilovolt grounding wire is a safety tool with relatively high use frequency. Because the cross section of the double-tongue hook of the existing low-voltage grounding wire is large, in the use process, the distance between the low-voltage crimping wire columns for the 35 kV transformer substation is small, the distance between the low-voltage wire columns is generally 7cm, the width of the head part of the 0.4 kV double-tongue grounding wire is generally 10cm, the phenomena that the grounding wire cannot be hung, is not firmly hung or falls off and the like often exist in the operation process, and the requirement that the grounding wire should be hung firmly cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the above-mentioned defect or not enough to prior art exist provides a 0.4 kilovolt clamp formula earth connection instrument, will connect the electricity clamp to change into the clamp formula by the couple formula, can guarantee that earth connection and conductor and earthing device can both contact well, easy dismounting, have sufficient mechanical strength to unlikely pine takes off when big short-circuit current passes through.
In order to realize above-mentioned purpose, the utility model discloses a technical scheme be a 0.4 kilovolt clamp formula earth connection instrument, including first splint and the second splint that conducting material made, first splint and second splint middle part are through pivot swing joint, and the second splint outside is equipped with at least one first locking screw, and the lower extreme of first splint and second splint all can be dismantled and is connected with the action bars, and the cover is equipped with insulated handle on the action bars, is equipped with well convex spring between the lower part of first splint and second splint.
And the first locking screw is used for pressing and fixing the wiring terminal of the grounding annealed copper wire on the second clamping plate.
Further, in some embodiments of the present invention, the first clamping plate and the second clamping plate each include an integrally disposed binding clip and an inlay, the inlay is disposed at the lower end of the binding clip, an operation rod is inserted into the inlay, and the front end of the binding clip is a duckbilled jaw.
Preferably, in some embodiments of the present invention, the binding clip and the inlay are made of aluminum alloy.
Preferably, in some embodiments of the present invention, the duckbill-shaped jaws are provided with a plurality of circular arc bayonets.
The arc bayonet is used for being clamped on the upper part of a variable low-voltage column head used for 35 kilovolts.
Preferably, in an embodiment of the present invention, the duckbill-type jaw holding surface is a frosted surface.
Further, in some embodiments of the present invention, the part of the operating rod inserted into the insert is pressed and fixed by the second locking screw.
Preferably, in an embodiment of the present invention, the operating rod is a cylindrical rod with a length of 20cm and a diameter of 1.6cm, and is made of epoxy resin.
Preferably, in an embodiment of the present invention, the insulating handle is a hollow cylinder with a length of 9cm, and is made of insulating plastic material.
The utility model has the beneficial technical effects that: the 0.4 KV clamp-type grounding wire tool of the utility model is processed and manufactured into a clamp-type grounding wire by utilizing the principle of the nipper pliers, and the 0.4 KV clamp-type grounding wire can be in good contact with a low-voltage terminal and a low-voltage jointing clamp which are used for 35 KV; the tool is light and convenient to use, obvious in effect, convenient to disassemble and assemble, safe and durable, and solves the problems that the grounding wire is time-consuming to articulate, is insecure to articulate or falls off and the like; the practical application is applied to the daily defect elimination and switching operation work of a 35 KV transformer substation, the work efficiency is improved, the power transmission time is shortened, the power supply amount is increased for enterprises, and the casualty risk is reduced.
Drawings
Fig. 1 is a schematic structural view of a 0.4 kv clamp-type ground wire tool according to an embodiment of the present invention;
fig. 2 is a front view of a 0.4 kv clamp-type ground wire tool in accordance with an embodiment of the present invention;
fig. 3 is a rear view of a 0.4 kv clamp-type ground wire tool in accordance with an embodiment of the present invention;
fig. 4 is a left side view of a 0.4 kv clamp-type ground wire tool in accordance with an embodiment of the present invention;
fig. 5 is a schematic view of a 0.4 kv clamp-type grounding wire tool according to an embodiment of the present invention when a grounding annealed copper wire is installed;
reference numerals: 1-a binding clip, 2-a duckbill-type jaw, 3-a first clamping plate, 4-a second clamping plate, 5-an operating rod, 6-an insulating handle, 7-a convex spring, 8-a rotating shaft, 9-a circular arc bayonet, 10-a first locking screw, 11-a second locking screw, 12-a grounding annealed copper wire and 13-an inlay.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by preferred embodiments.
Examples
Referring to fig. 1-4, the 0.4 kv clamp-type ground wire tool provided in this embodiment includes a first clamp plate 3 and a second clamp plate 4 made of conductive material, the middle portions of the first clamp plate 3 and the second clamp plate 4 are movably connected through a rotating shaft 8, 2 first locking screws 10 are disposed on the outer side of the second clamp plate 4, the lower ends of the first clamp plate 3 and the second clamp plate 4 are detachably connected with an operating rod 5, an insulating handle 6 is sleeved on the operating rod 5, and a convex spring 7 is disposed between the lower portions of the first clamp plate 3 and the second clamp plate 4.
The first clamping plate 3 and the second clamping plate 4 respectively comprise a binding clip 1 and an inlay 13 which are integrally arranged, the inlay 13 is positioned at the lower end of the binding clip 1, an operating rod 5 is inserted in the inlay 13, and the front end of the binding clip 1 is a duckbilled jaw 2; the duckbilled type jaw 2 is provided with 2 circular arc bayonets 9.
In the embodiment, aluminum alloy with good ductility, corrosion resistance and low price is selected as the material of the forceps head 1, epoxy resin with excellent corrosion resistance, dielectric property and comprehensive performance is selected as the material of the operating rod 5, and insulating plastic with excellent alkali-acid resistance and electrical insulating property and low price is selected as the material of the insulating handle 6; the adopted convex spring 7 has good stability, compact structure and good buffer performance.
In the embodiment, the length of the clamp head 1 is 12cm, the length of the operating rod 5 is 20cm, the diameter is 1.6cm, the length of the insulating handle 6 is 9cm, the length of the convex spring 7 is 8cm, and the lengths of the first locking screw 10 and the second locking screw 11 are 7.5mm
Preferably, in the embodiment, the clamping surface of the duckbill-type jaw 2 is frosted to form a frosted surface, so that the friction force is increased, and the possibility of falling of the grounding wire is reduced; meanwhile, the clamping force can be increased by properly replacing the convex spring 7 with the increased elastic coefficient; the length of the epoxy resin operating rod 5 is properly increased, so that the work of an operator can be facilitated.
The utility model discloses a use description of 0.4 kilovolt clamp formula earth connection instrument:
1. installation of 0.4 KV clamp type grounding wire
Select supporting 25 square millimeter ground connection annealed copper wires 12 according to the voltage class of 0.4 kilovolt clamp formula earth connection, then inspect ground connection annealed copper wires 12 and the utility model discloses a 0.4 kilovolt clamp formula earth connection instrument's outward appearance has or not damaged, if do not have the 0.4 kilovolt clamp formula earth connection of beginning equipment.
Referring to fig. 5, first, the first locking screw 10 on the second clamping plate 4 of the 0.4 kv clamp-type grounding wire tool is removed, the connection terminal (a \ B \ C \ N) on the grounding annealed copper wire 12 is fixed on the 0.4 kv clamp-type grounding wire tool through the first locking screw 10, four 0.4 kv clamp-type grounding wire tools are installed in the same manner, and are connected with the grounding terminal after being installed, the grounding terminal is generally in a phase-matching type (a \ B \ C \ N shares 1 grounding terminal), and the grounding terminal is fixedly connected with the grounding steel needle with the length of 0.8-1 meter by a screw, so as to form a set of complete 0.4 kv clamp-type grounding wire.
2. The use method of the 0.4 kV clamp type grounding wire comprises the following steps:
after the installation is correctly carried out according to the installation method of the 0.4 KV clamp type grounding wire, the grounding steel needle is driven into the ground, the depth of the grounding steel needle is not less than 0.6 m, and the stability and firmness are ensured; the insulating handle 6 which is operated by both hands is tightly held, the force is inwards combined, and the arc bayonet 9 is clamped on the upper part of the variable low-voltage column head used for 35 kilovolts according to A \ B \ C \ N phases in sequence, so that the clamping is ensured to be firm; if the arc bayonet 9 of the 0.4 kV clamp type grounding wire cannot be firmly clamped on the upper part of the low-voltage transformation column head used for 35 kV, the duckbill type jaw 2 is clamped on the low-voltage transformation column head lead jointing clamp used for 35 kV, and the clamping is ensured to be firm.
3. Notes on 0.4 kV clamp-type ground wire
When the 0.4 KV clamp-type grounding wire is installed or removed, after no electricity is needed to be found on the wire, the wire is operated by a skilled electrician under the supervision of a guardian; when the device is installed, a grounding end is firstly connected, then a conductor end is connected, on a multilayer circuit, low voltage is firstly installed, then high voltage is connected, a neutral wire is firstly installed, then a phase wire is installed, and a lower layer is firstly installed, and then an upper layer is installed. The procedure is reversed when removing the 0.4 kv clamp ground.
The insulating rods are used for assembly and disassembly, the equipment is discharged when the equipment with the capacitor is installed, the 0.4 KV clamp type grounding wire adopts a multi-strand bare copper core wire with the section not smaller than 25 square millimeters, the grounding wire is fixed on a grounding steel needle by using a special wire clamp, and the winding mode is forbidden for grounding or short circuit; a fuse or a switch is not arranged between the 0.4 kilovolt clamp type grounding wire and the maintenance equipment; in order to ensure the safety of human bodies and equipment and ensure the integrity of the 0.4 kV clamp type grounding wire, the grounding wire is stored in a special place with ventilation and dry environment.
When a 0.4 kV clamp type grounding wire is selected, the rated short circuit current value is larger than the maximum fault current value of a suspension point, and the grounding operating rod is consistent with the system voltage of the suspension point; before use, the electricity should be checked and discharged, and the grounding operation can be carried out after the power failure of the electrical equipment is confirmed.
When the 0.4 KV clamp-type grounding wire is subjected to short-circuit current, the grounding wire is generally scrapped, and before being used each time, routine inspection is carried out, and when the defects of wire clamp cracking, defect, poor contact of a connecting part, looseness, damage of an insulating protective layer, exposure of a soft stranded wire and the like are found, the grounding wire is forbidden to be continuously used; under the normal use condition, the quality of the 0.4 kV clamp type grounding wire is guaranteed for one year.
The foregoing is a preferred embodiment of the present invention for explaining the technical solution of the present invention, and those skilled in the art can make routine modifications, equivalent replacements, and improvements within the spirit and principle of the present invention.
Claims (8)
1. The utility model provides a 0.4 kilovolt clamp formula earth connection instrument, includes first splint (3) and second splint (4) that conducting material made, and first splint (3) and second splint (4) middle part are through pivot (8) swing joint, and second splint (4) outside is equipped with at least one first locking screw (10), its characterized in that: the lower ends of the first clamping plate (3) and the second clamping plate (4) are detachably connected with an operating rod (5), the operating rod (5) is sleeved with an insulating handle (6), and a convex spring (7) is arranged between the lower parts of the first clamping plate (3) and the second clamping plate (4).
2. The 0.4 kilovolt clamp-type ground wire tool of claim 1, wherein: first splint (3) and second splint (4) all include binding clip (1) and inlay (13) of an organic whole setting, and inlay (13) are located binding clip (1) lower extreme, and inlay (13) interpolation connects action bars (5), and binding clip (1) front end is duckbilled formula and keeps silent (2).
3. The 0.4 kilovolt clamp-type ground wire tool of claim 2, wherein: the binding clip (1) and the inlay (13) are made of aluminum alloy.
4. The 0.4 kilovolt clamp-type ground wire tool of claim 2, wherein: a plurality of circular arc bayonets (9) are arranged at the duckbilled type jaws (2).
5. The 0.4 kilovolt clamp-type ground wire tool of claim 2, wherein: the clamping surface of the duckbilled jaw (2) is a frosted surface.
6. The 0.4 kilovolt clamp-type ground wire tool of claim 1, wherein: the part of the operating rod (5) inserted in the inlay (13) is pressed and fixed through a second locking screw (11).
7. The 0.4 kilovolt clamp-type ground wire tool of claim 1, wherein: the operating rod (5) is a cylindrical rod piece with the length of 20cm and the diameter of 1.6cm and is made of epoxy resin.
8. The 0.4 kilovolt clamp-type ground wire tool of claim 1, wherein: the insulating handle (6) is a hollow cylinder with the length of 9cm and is made of insulating plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120599666.9U CN214477986U (en) | 2021-03-24 | 2021-03-24 | 0.4 kilovolt clamp type grounding wire tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120599666.9U CN214477986U (en) | 2021-03-24 | 2021-03-24 | 0.4 kilovolt clamp type grounding wire tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214477986U true CN214477986U (en) | 2021-10-22 |
Family
ID=78159841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120599666.9U Expired - Fee Related CN214477986U (en) | 2021-03-24 | 2021-03-24 | 0.4 kilovolt clamp type grounding wire tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214477986U (en) |
-
2021
- 2021-03-24 CN CN202120599666.9U patent/CN214477986U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101282025B (en) | Method for maintaining indoor busbar knife brake movable contact without power-off of high pressure busbar | |
| CN214477986U (en) | 0.4 kilovolt clamp type grounding wire tool | |
| CN205104766U (en) | Cubical switchboard earth clamp | |
| CN212114724U (en) | 10kV fixed AC ice melting device | |
| CN209979691U (en) | Drawer type switch cabinet test dedicated short-circuit connection device | |
| CN205229199U (en) | General experimental binding post row of transformer | |
| CN107589280A (en) | A kind of testing wire clamp and complexes for relay protection small bus transition | |
| CN208209049U (en) | A kind of Multifunctional grounding wire | |
| CN110895323A (en) | Portable mutual inductor test rod | |
| CN219891284U (en) | Terminal conversion wiring mechanism and test device for opening and closing of circuit breaker of thermal power plant | |
| CN219065554U (en) | Terminal strip short-circuit plug | |
| CN203951012U (en) | The effectively converting equipment earthing device of slip-off preventing | |
| CN218414384U (en) | Clamping structure of outdoor high-voltage switch isolation tool | |
| CN214899816U (en) | Clamp for replacing insulator at quadruple end of extra-high voltage line | |
| CN210038041U (en) | Auxiliary tool for withstand voltage test of insulating appliance | |
| CN214335114U (en) | Through-flow withstand voltage test tool for ring main unit | |
| CN108365356A (en) | A kind of grounding wire device of power switch cabinet | |
| CN210489866U (en) | Experimental short circuit grounding instrument of vacuum circuit breaker | |
| CN217035513U (en) | Vacuum circuit breaker prevents mistake short circuit device | |
| CN212229000U (en) | A wiring switching device for transformer power failure test | |
| CN212622887U (en) | High-voltage distribution line short-circuit fault addressing device | |
| CN212991787U (en) | Low-voltage insulating sheath | |
| CN204760571U (en) | Electric earth connection is tested to quick reputation of distribution | |
| CN216849442U (en) | High-voltage test wire capable of being positioned | |
| CN218567428U (en) | Auxiliary wiring equipment for secondary test of power grid equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |