CN203839518U - Earth-penetrating clamp specialized for transformer station earth screen resistance testing - Google Patents
Earth-penetrating clamp specialized for transformer station earth screen resistance testing Download PDFInfo
- Publication number
- CN203839518U CN203839518U CN201420008997.0U CN201420008997U CN203839518U CN 203839518 U CN203839518 U CN 203839518U CN 201420008997 U CN201420008997 U CN 201420008997U CN 203839518 U CN203839518 U CN 203839518U
- Authority
- CN
- China
- Prior art keywords
- earth
- ground
- rod
- cross bar
- transformer station
- 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
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 239000010437 gem Substances 0.000 claims description 12
- 229910001751 gemstone Inorganic materials 0.000 claims description 12
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 230000035515 penetration Effects 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 5
- 241001074085 Scophthalmus aquosus Species 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The utility model relates to an earth-penetrating clamp specialized for transformer station earth screen resistance testing, which comprises a conducting rod body. The tail end of the conducting rod body is a tip. The outer surface of the conducting rod body over the tip is provided with an earth-penetrating screw thread segment. The diameter of the earth-penetrating screw thread is wider than the conducting rod body. The top of the conducting rod body is vertically connected with a cross bar. The cross bar is wrapped by an insulation sheath. The two ends of the cross bar are vertically connected with anti-fall baffle plates. A conductive screw is further connected on the conducting rod body. The earth-penetrating clamp specialized for transformer station earth screen resistance testing has the characteristics of portability, simple structure and convenient use. Transformer station earth screen resistance testing wiring earth penetration operations can be easily achieved without using a large hammer or an iron hammer. Workers are effectively prevented from being hurt. The transformer station earth screen resistance testing operation safety is ensured.
Description
Technical field
The utility model relates to power equipment Work tool, more particularly, relates to a kind of substation ground network resistance test special jewel and clamps.
Background technology
Transformer substation arrester imports substation grounding electrical network by thunder-strike current; if substation ground network resistance is defective; because thunder-strike current is very large; can produce very high residual voltage; make near the power equipment of lightning strike spot be subjected to strike back the threat of thunder; reduce grounding net of transformer substation itself and protect the lightning withstand level of Substation Electric Equipment energized conductor, do not reach designing requirement and damage converting equipment.Meanwhile, whether qualified substation operation personnel, the maintainer's personal safety of being directly connected to of substation ground network resistance; But because soil has corrosiveness to earthing device, along with lengthen running time, the existing corrosion of earthing device, affects converting equipment safe operation; Therefore, need to carry out routine test to substation ground network resistance.In substation ground network resistance measurement process, need conduction steel bar to squeeze into 1-1.5 rice, transformer station ground, scene is conventionally by staff's righting steel bar, by another staff, adopting sledge hammer to impact crude steel bar completes electric conductor and bores and to work, this operation is coarse, easily because brandishing sledge hammer direction, staff forbidden, impact steel bar direction and produce skew, mistakenly hit is beaten other staff on hand, cause personal injury, therefore, develop a kind of simple in structure, easy for operation, without use sledge hammer or iron hammer can complete easily the wiring of substation ground network resistance test brill work, effectively prevent staff's personal injury, the substation ground network resistance test special jewel ground tonger of guaranteeing substation ground network resistance test work safety has very important engineering practical value.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, easy for operation, without use sledge hammer or iron hammer can complete easily the wiring of substation ground network resistance test brill work, effectively prevent staff's personal injury, guarantee substation ground network resistance test work safety substation ground network resistance test special jewel clamp.
The technical solution of the utility model is as follows:
A kind of substation ground network resistance test special jewel ground pincers, comprise the conduction body of rod, conduction body of rod end is tip, the conducting rod external surface of tip top is provided with one section and enters ground screw thread, the diameter that enters ground screw thread is wider than the conduction body of rod, conduction body of rod top is vertically connected with cross bar, cross bar coated insulation sheath, and cross bar two ends are vertically connected with slip-off preventing baffle plate; On the conduction body of rod, be also connected with conduction screw.
As preferably, the described conduction body of rod is cylinder, enters the conducting post smooth surface between ground screw thread and cross bar.
As preferably, tip is the nose cone that is welded on conducting post end.
As preferably, described conduction screw is wing screw, precession or back-out in the screw of offering on conducting post top.
The beneficial effects of the utility model are as follows:
Substation ground network resistance test special jewel described in the utility model ground pincers, in use, ground connection annealed copper wire is wrapped on conduction screw, conduction screw is tightened toward the screw the inside of the conduction body of rod, tip is vertically pressed into transformer station ground, by two staff difference application of force on cross bar, cross bar turns clockwise, the ground screw thread that enters that cross bar turns clockwise in process with the latter half of moving conductive rod body pierces ground, until conduction body of rod vertical drill enters underground 1-1.5 rice, complete substation ground network resistance test brill work.
Same, by two staff application of force respectively on cross bar, be rotated counterclockwise cross bar, the ground screw thread that enters that cross bar is rotated counterclockwise in process with the latter half of moving conductive rod body gets out ground, until tip bassets, complete the work of taking out stitches of substation ground network resistance test.
Described slip-off preventing baffle plate can effectively prevent staff's palm in promoting cross bar rotary course disengaging cross bar that skids.
Substation ground network resistance test special jewel described in the utility model ground pincers, carrying portable, simple in structure, easy to use, without use sledge hammer or iron hammer can complete easily the wiring of substation ground network resistance test brill work, effectively prevent staff's personal injury, guarantee substation ground network resistance test work safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: the 1st, the conduction body of rod, the 2nd, enter ground screw thread, the 3rd, tip, the 4th, cross bar, the 5th, insulating sleeve, the 6th, slip-off preventing baffle plate, the 7th, conduction screw.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
A kind of substation ground network resistance test special jewel ground pincers, comprise the conduction body of rod 1, the conduction body of rod 1 end is tip 3, the conduction body of rod 1 outer surface of tip 3 tops is provided with one section and enters ground screw thread 2, the diameter that enters ground screw thread 2 is wider than the conduction body of rod 1, the conduction body of rod 1 top is vertically connected with cross bar 4, cross bar 4 coated insulation sheaths 5, and cross bar 4 two ends are vertically connected with slip-off preventing baffle plate 6; On the conduction body of rod 1, be also connected with conduction screw 7.
In order more swimmingly the conduction body of rod 1 to be pierced to the end, ground, in the present embodiment, the described conduction body of rod 1 is cylinder, enters the conducting post smooth surface of 4 of ground screw thread 2 and cross bars.Tip 3 is for being welded on the nose cone of conducting post end.
Precession or back-out in the screw that conduction screw 7 is offered on conducting post top, for dead earth wire, and make earth lead be connected with the conduction body of rod 1.For more convenient, operate, conduction screw 7 is wing screw, and staff can tighten and screw out conduction screw 7 without instrument in the situation that.
Above-described embodiment is only for the utility model is described, and not with the restriction of the present utility model of opposing.So long as according to technical spirit of the present utility model, to above-described embodiment change, modification etc. all will drop in the scope of claim of the present utility model.
Claims (4)
1. a substation ground network resistance test special jewel ground clamps, it is characterized in that, comprise the conduction body of rod, conduction body of rod end is tip, the conducting rod external surface of tip top is provided with one section and enters ground screw thread, and the diameter that enters ground screw thread is wider than the conduction body of rod, and conduction body of rod top is vertically connected with cross bar, cross bar coated insulation sheath, cross bar two ends are vertically connected with slip-off preventing baffle plate; On the conduction body of rod, be also connected with conduction screw.
2. substation ground network resistance test special jewel according to claim 1 ground pincers, is characterized in that, the described conduction body of rod is cylinder, enters the conducting post smooth surface between ground screw thread and cross bar.
3. substation ground network resistance test special jewel according to claim 2 ground pincers, is characterized in that, tip is the nose cone that is welded on conducting post end.
4. substation ground network resistance test special jewel according to claim 3 ground pincers, is characterized in that, described conduction screw is wing screw, precession or back-out in the screw of offering on conducting post top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008997.0U CN203839518U (en) | 2014-01-07 | 2014-01-07 | Earth-penetrating clamp specialized for transformer station earth screen resistance testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420008997.0U CN203839518U (en) | 2014-01-07 | 2014-01-07 | Earth-penetrating clamp specialized for transformer station earth screen resistance testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203839518U true CN203839518U (en) | 2014-09-17 |
Family
ID=51517318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420008997.0U Expired - Fee Related CN203839518U (en) | 2014-01-07 | 2014-01-07 | Earth-penetrating clamp specialized for transformer station earth screen resistance testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203839518U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911317A (en) * | 2016-07-05 | 2016-08-31 | 国网辽宁省电力有限公司丹东供电公司 | Novel grounding probe of groundmeter |
| CN113311245A (en) * | 2021-04-25 | 2021-08-27 | 国网河南省电力公司许昌供电公司 | Special self-inlet-outlet type grounding electrode for grounding impedance test |
-
2014
- 2014-01-07 CN CN201420008997.0U patent/CN203839518U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911317A (en) * | 2016-07-05 | 2016-08-31 | 国网辽宁省电力有限公司丹东供电公司 | Novel grounding probe of groundmeter |
| CN113311245A (en) * | 2021-04-25 | 2021-08-27 | 国网河南省电力公司许昌供电公司 | Special self-inlet-outlet type grounding electrode for grounding impedance test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140917 Termination date: 20210107 |