CN204613346U - A kind of ground loop detector - Google Patents
A kind of ground loop detector Download PDFInfo
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- CN204613346U CN204613346U CN201520192530.0U CN201520192530U CN204613346U CN 204613346 U CN204613346 U CN 204613346U CN 201520192530 U CN201520192530 U CN 201520192530U CN 204613346 U CN204613346 U CN 204613346U
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- ground
- insulating bar
- telescopic insulating
- fixed
- insulated handle
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- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000011835 investigation Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model relates to a kind of ground loop detector, comprise insulated handle, telescopic insulating bar is plugged with on the top of insulated handle, telescopic insulating bar is fixed by axial-rotation mode and insulated handle, be fixed with metal contact stub on the top of telescopic insulating bar, meanwhile, be positioned at the bottom of stub on the top of telescopic insulating bar, also be fixed with ground resistance measuring instrument, the earth terminal of ground resistance measuring instrument is connected with ground terminal by the ground wire with insulating sheath.The utility model can effectively on detection line ground wire whether remove completely, whether there is earth point, effective warning operating personnel, prevent band ground wire from going power transmission, meanwhile, combined circuit material is analyzed resistance value, also can the approximate location of positioning both ground point effectively and quickly, for investigation earth point, get rid of line fault and serve good effect.
Description
Technical field
The utility model belongs to Substation Switch Changing Operation equipment technical field, particularly a kind of ground loop detector.
Background technology
At present, remove in substation switching operating ground wire and power transmission operate between check whether earth point is removed all without effective measures, only rely on check digit, judgement that the artificial inspection item such as visual inspection realizes on-the-spot earth point, there is uncertain factor, the guarantee that is perfectly safe before power transmission cannot be accomplished, there is certain potential safety hazard.Such as, in 2009 certain 220kV transformer station power transmission grid switching operation, person on duty is removing in ground wire process because floor intercepts sight line, can't see the ground wire being physically located in 1st floor, think that the ground wire being responsible for removing by them is all removed by mistake, there is the pernicious misoperation fault of band ground wire power transmission during power transmission, cause serious consequence.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and proposes a kind of ground loop detector.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of ground loop detector, it is characterized in that: comprise insulated handle, telescopic insulating bar is plugged with on the top of insulated handle, telescopic insulating bar is fixed by axial-rotation mode and insulated handle, be fixed with metal contact stub on the top of telescopic insulating bar, meanwhile, be positioned at the bottom of stub on the top of telescopic insulating bar, also be fixed with ground resistance measuring instrument, the earth terminal of ground resistance measuring instrument is connected with ground terminal by the ground wire with insulating sheath.
And described ground terminal is the ground clamp adopting screw compression bonding method.
Advantage of the present utility model and good effect are:
1, ground loop detector of the present utility model promote the use of can effectively on detection line ground wire whether remove completely, whether there is earth point, the potential safety hazard that effective warning operating personnel circuit exists, prevents band ground wire from going power transmission, stops the generation of pernicious misoperation fault.
2, the utility model is analyzed resistance value by combined circuit material, also can the approximate location of positioning both ground point effectively and quickly, is investigation earth point, gets rid of line fault and serve good effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Implement to be further described to the utility model below in conjunction with accompanying drawing, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of ground loop detector, as shown in Figure 1, comprise insulated handle 1, be plugged with telescopic insulating bar 2 on the top of insulated handle, telescopic insulating bar is fixed by axial-rotation mode and insulated handle, metal contact stub 3 is fixed with on the top of telescopic insulating bar, meanwhile, be positioned at the bottom of stub on the top of telescopic insulating bar, be also fixed with ground resistance measuring instrument 4, the earth terminal of ground resistance measuring instrument, is connected with ground terminal 6 by the ground wire 5 with insulating sheath.
In concrete enforcement of the present utility model, the ground terminal used is for adopting the ground clamp of screw compression bonding method.
Principle of work
First earth terminal is connected with earth point during test, ensure that detector ground connection is good, adjust the length of telescopic insulating bar again, open ground resistance measuring instrument, by the contact of stub and test line, check the resistance of ground resistance measuring instrument, if resistance is enough large, show that the earth point of test line all disconnects, on the contrary dangerous.
Claims (2)
1. a ground loop detector, it is characterized in that: comprise insulated handle, telescopic insulating bar is plugged with on the top of insulated handle, telescopic insulating bar is fixed by axial-rotation mode and insulated handle, be fixed with metal contact stub on the top of telescopic insulating bar, meanwhile, be positioned at the bottom of stub on the top of telescopic insulating bar, also be fixed with ground resistance measuring instrument, the earth terminal of ground resistance measuring instrument is connected with ground terminal by the ground wire with insulating sheath.
2. ground loop detector according to claim 1, is characterized in that: described ground terminal is the ground clamp adopting screw compression bonding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192530.0U CN204613346U (en) | 2015-04-01 | 2015-04-01 | A kind of ground loop detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520192530.0U CN204613346U (en) | 2015-04-01 | 2015-04-01 | A kind of ground loop detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204613346U true CN204613346U (en) | 2015-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520192530.0U Active CN204613346U (en) | 2015-04-01 | 2015-04-01 | A kind of ground loop detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204613346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093687A (en) * | 2016-07-28 | 2016-11-09 | 国网辽宁省电力有限公司丹东供电公司 | Intelligent anti-line with ground closes a floodgate and detects device |
| CN107515352A (en) * | 2017-09-06 | 2017-12-26 | 国网江苏省电力公司徐州供电公司 | Grounding switch ground detection device |
-
2015
- 2015-04-01 CN CN201520192530.0U patent/CN204613346U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093687A (en) * | 2016-07-28 | 2016-11-09 | 国网辽宁省电力有限公司丹东供电公司 | Intelligent anti-line with ground closes a floodgate and detects device |
| CN107515352A (en) * | 2017-09-06 | 2017-12-26 | 国网江苏省电力公司徐州供电公司 | Grounding switch ground detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |