CN206804697U - Secondary circuit insulation checks short-circuit device - Google Patents
Secondary circuit insulation checks short-circuit device Download PDFInfo
- Publication number
- CN206804697U CN206804697U CN201720552094.2U CN201720552094U CN206804697U CN 206804697 U CN206804697 U CN 206804697U CN 201720552094 U CN201720552094 U CN 201720552094U CN 206804697 U CN206804697 U CN 206804697U
- Authority
- CN
- China
- Prior art keywords
- insulation
- plastic casing
- secondary circuit
- cored wire
- loop
- 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.)
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Links
- 238000009413 insulation Methods 0.000 title claims abstract description 32
- 229920003023 plastic Polymers 0.000 claims abstract description 18
- 239000004033 plastic Substances 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Abstract
It the utility model is related to secondary loop in power system insulation and check aid, specially secondary circuit insulation checks short-circuit device.Secondary circuit insulation checks short-circuit device, including plastic casing, plastic casing has been embedded in conductive metal sheet, some cored wire jacks are set on the side of left and right two of plastic casing, the front of plastic casing is correspondingly arranged two row nut type holes, two row nut type holes are corresponding with the cored wire jack on the side of left and right two respectively, and link is also equipped with plastic casing.When checking that short-circuit device carries out loop insulation inspection with secondary circuit insulation, can effectively and fastening each return cable cored wire is shorted together, so as to ensure the correctness and rapidity of insulation inspection, improve secondary circuit insulation and check efficiency, at the same avoid insulation check after test loop discharge over the ground insufficient generation for causing electric shock accidents.
Description
Technical field
It the utility model is related to secondary loop in power system insulation and check aid, specially secondary circuit insulation checks
Short-circuit device.
Background technology
To ensure that the auxiliary electrical that the needs of power system primary equipment safe and stable operation and operational administrative configure is set
Standby, such as all kinds of protective relaying device, automatic safety device, measure and control device and fault wave recording devices are referred to as secondary device, institute
It is exactly that these equipment are connected formed electric loop by certain function requirement to call secondary circuit, to realize to once setting
For functions such as the protection of operating condition, control, measurement, monitoring.According to《Relay protection and power grid security automatics test gauge
Journey》Regulation, when insulation carried out to secondary circuit checking, will be all at the terminal block of the screen cabinet such as protection outside the loop that introduces and
Cable is all off, respectively by alternating current, alternating voltage, dc source, DC control（That is breaker tripping and closing）, signal circuit etc.
All cable cores be each shorted together, the insulation inspection in each loop is carried out with 1000V megameters, if new installation dress
Examination is put, the insulation resistance value mutual with each loop should be greater than 10M Ω over the ground in its each loop；If daily periodic inspection,
Its insulation resistance value should be greater than 1M Ω.When insulation checks, especially it should be noted that test wire connection will fasten, and one has often been carried out
Item Insulation Test, it is necessary to which test loop is discharged over the ground.At present, when secondary circuit insulation inspection is carried out in working site, because
Alternating current, alternating voltage, dc source, DC control（That is breaker tripping and closing）, each loop such as signal circuit is according to screen cabinet end
Sub figure of arranging is completed from from top to bottom wiring, therefore behind the above-mentioned loop of disconnection, it is necessary to conductive short line is used by the cable core in each loop
Line is shorted together, it is done so that often cause test connection not fasten, directly influence correctness that insulation checks and
Rapidity, and wiring do not fasten can also cause insulation check after test loop discharge over the ground it is insufficient, cause test people
The generation of member's electric shock accidents.Therefore, it is necessary to develop a kind of conveniently cable core short-circuit device, insulated in secondary circuit
During inspection, what can be fastened is shorted together each return cable cored wire, so as to ensure correctness that loop insulation checks and quick
Property, at the same avoid insulation check after test loop discharge over the ground insufficient generation for causing electric shock accidents.
The content of the invention
The utility model is in order to solve the above problems, there is provided secondary circuit insulation checks short-circuit device.
The utility model adopts the following technical scheme that realization：Secondary circuit insulation checks short-circuit device, including modeling
Material shell body, plastic casing have been embedded in conductive metal sheet, some cored wire jacks are set on the side of left and right two of plastic casing, modeling
The front of material shell body is correspondingly arranged two row nut type holes, and two row nut type holes are inserted with the cored wire on the side of left and right two respectively
Hole is corresponding, and link is also equipped with plastic casing.
In use, the device first is hung over into correct position under screen cabinet top, each alternating current, alternating voltage, direct current are disconnected
Source, DC control（That is breaker tripping and closing）, after signal circuit, successively by each loop cored wire and megameter End Test line insertion device
Cored wire jack, screw is crimped and fastened, so measured between each loop or loop insulation against ground resistance.
With the secondary circuit insulate check short-circuit device carries out loop insulation check when, can effectively and fasten by each time
Road cable core is shorted together, and so as to ensure the correctness and rapidity of insulation inspection, is improved secondary circuit insulation and is checked effect
Rate, at the same avoid insulation check after test loop discharge over the ground insufficient generation for causing electric shock accidents.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 top plan view.
Fig. 3 is the structural representation of cored wire jack.
In figure：1- conductive metal sheets, 2- cored wire jacks, 3- screws, 4- plastic casings, 5- links.
Embodiment
Secondary circuit insulation checks that short-circuit device, including rigid plastics housing 4, rigid plastics housing 4 have been embedded in conduction
Sheet metal 1, respectively sets 20 cored wire jacks 2 on the side of left and right two of rigid plastics housing 4, after cored wire insertion cored wire jack with
Conductive metal sheet 1 contacts, and the front of rigid plastics housing is correspondingly arranged two row nut type holes, and nut type hole enables screw
Effectively crimping, each column include 20 holes, and two row nut type holes are corresponding with the cored wire jack on the side of left and right two respectively, modeling
Link 5 is also equipped with material shell body.
Claims (1)
1. secondary circuit insulation checks short-circuit device, it is characterised in that including rigid plastics housing（4）, rigid plastics housing（4）
It has been embedded in conductive metal sheet（1）, rigid plastics housing（4）The side of left and right two on some cored wire jacks are set（2）, hard
The front of plastic casing is correspondingly arranged two row nut type holes, two row nut type holes respectively with the cored wire on the side of left and right two
Jack is corresponding, and link is also equipped with rigid plastics housing（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720552094.2U CN206804697U (en) | 2017-05-18 | 2017-05-18 | Secondary circuit insulation checks short-circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720552094.2U CN206804697U (en) | 2017-05-18 | 2017-05-18 | Secondary circuit insulation checks short-circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206804697U true CN206804697U (en) | 2017-12-26 |
Family
ID=60740944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720552094.2U Active CN206804697U (en) | 2017-05-18 | 2017-05-18 | Secondary circuit insulation checks short-circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206804697U (en) |
-
2017
- 2017-05-18 CN CN201720552094.2U patent/CN206804697U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |