CN206362824U - PT/CT secondary winding megger test clips - Google Patents
PT/CT secondary winding megger test clips Download PDFInfo
- Publication number
- CN206362824U CN206362824U CN201621251432.0U CN201621251432U CN206362824U CN 206362824 U CN206362824 U CN 206362824U CN 201621251432 U CN201621251432 U CN 201621251432U CN 206362824 U CN206362824 U CN 206362824U
- Authority
- CN
- China
- Prior art keywords
- jaws
- clip
- mesopore
- megger
- secondary windings
- 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
- 238000004804 winding Methods 0.000 title claims abstract description 45
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Measuring Leads Or Probes (AREA)
Abstract
A kind of PT/CT secondary windings megger test clip is claimed in the utility model, mainly includes mesopore jaws and clip body, a diameter of 0.7mm of mesopore jaws.When carrying out PT/CT secondary winding megger tests, using the interlocking of mesopore jaws, clip is snapped tight against on the screw of PT/CT secondary winding terminals, it is to avoid clip slides（Drop）, and efficiency test distance between clip can be ensured, prevent from discharging between high-pressure side clip and earth terminal clip during megger test.The utility model patent makes simple, material and is easy to get, the problem of testing crew is easily dropped using zigzag port clip, easily touches electric discharge by mistake can effectively be solved, be conducive to easily carrying out secondary winding wiring during PT/CT secondary winding megger tests, improve experiment security performance, lifting test efficiency, and advantageously ensure that the safety of the person and equipment.
Description
Technical field
The utility model is related to electrical insulation testing technical field, specifically a kind of voltage suitable for 10kV or 35kV
（Stream）Transformer（That is PT/CT）Secondary winding insulation resistance test equipment.
Background technology
Electrical test personnel carry out PT/CT secondary winding insulation resistance tests when, it is necessary to use clip by it is secondary around
A group part connects high-pressure side, a part of winding earth.Because the distance between secondary winding is smaller, between general winding terminals between
Away from less than 20mm, during using existing jagged clip, because jaws is difficult to effectively be engaged with lead screw, and clip has one in itself
Determine weight, clip is clipped in the lead screw of secondary winding terminal and easily dropped, or the clip of connection high-pressure side easily connects with being connected
The clip of ground terminal may misplace electricity apart from deficiency.
In order to avoid above mentioned problem, testing crew is entered typically by the way of copper wire line solderless wrapped connection different secondary winding terminals
Row PT/CT secondary winding megger test wiring.Due to 10kV or 35kV PT/CT be typically installed in switch cubicle
Inside, testing crew is needed drilling switch cubicle by the way of copper wire solderless wrapped connection different secondary terminal or squatted for a long time in switch cubicle
Cabinet door mouthful, wiring is inconvenient, spends the time longer, and wiring experience is not good, is easily caused testing crew tired.
During PT/CT secondary winding insulation resistance tests, the utility model patent makes full use of the mesopore with suitable size
Test clamp, the high-pressure side or earth terminal of megger test are clipped on corresponding windings port, mesopore jaws and spiral shell is utilized
The occlusion of size between bar, can be prevented effectively from the problem that drops of existing zigzag clip, can improve test efficiency, can more have
Effect avoids during experiment clip from easily dropping, it is easily mobile caused by misplace the safety problems such as electricity.
The content of the invention
Technical problem to be solved in the utility model, is just to provide a kind of PT/CT secondary windings megger test and uses
Clip, so as to be conducive to, when carrying out PT/CT secondary winding megger tests, easily carrying out PT/CT secondary winding insulation
Resistance test wiring, it is to avoid because existing zigzag clip is engaged the problem that easily drops that is not tight and producing, and solve copper wire solderless wrapped connection
The problem of secondary winding is inconvenient, experience is poor, improves test efficiency, it is ensured that the safety of the person and test item.
The technical solution of the utility model is as follows：
A kind of PT/CT secondary windings megger test clip, including clip body, extend in the front end of clip body
Mesopore jaws is provided with to medium position, the mesopore jaws carries out PT/ by the way of the center perforate of flat mouth jaws
During CT secondary winding megger tests, it is engaged by the screw or screw rod of mesopore jaws and PT/CT secondary windings, is mesopore
Jaws arc diameter is slightly larger than screw diameter, without screw rod is surrounded completely, as long as two arch sections can be by screw rod up and down
Step up, can fix；Relative, diameter is too big easily to be loosened on the contrary.
Further, the mesopore jaws is connected as a single entity with clip body using stainless steel material or aluminum alloy materials.
Further, the mesopore jaws is made up of upper jaws and lower jaws, and upper jaws and lower jaws are along jaws slot line
Symmetrically.
Further, the length of the upper jaws and lower jaws is 9mm, is highly 3mm, thickness is 1mm, centre bit is equipped with
The aperture that one circular arc is constituted.
Further, when upper jaws and lower jaws are engaged, the length of the left and right of aperture is 7mm, upper jaws and lower jaws
The distance between circular arc tangent line parallel with jaws slot line is 5mm, it is ensured that when clip is clipped on the screw rod of PT/CT secondary windings
Effectively it can be snapped on screw rod.
Further, the high-pressure side or earth terminal of the megger test are clipped in corresponding windings by mesopore jaws (1)
On port.
Further, the PT/CT secondary windings are 10kV or 35kV PT/CT.
Advantage of the present utility model and have the beneficial effect that：
The utility model patent makes full use of the test clamp of the mesopore with suitable size, by the height of megger test
Pressure side or earth terminal are clipped on corresponding windings port, using being engaged for the size between mesopore jaws and screw rod, can be prevented effectively from
The problem that drops of existing zigzag clip, can improve test efficiency, and clip easily drops when more ensure that experiment, easily movement causes
Misplace the safety problems such as electricity.
Brief description of the drawings
Fig. 1 is the structure that the utility model provides that preferred embodiment is PT/CT secondary winding megger test clips
Schematic diagram；
Fig. 2 is the structural representation of mesopore jaws；
1 is mesopore jaws in figure, and 2 be clip body；1.1 it is upper jaws, 1.2 be lower jaws.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
It is clear, describe in detail.Described embodiment is only a part of embodiment of the present utility model.
The technical solution of the utility model is as follows：
Reference picture is as shown in figure 1, PT/CT secondary windings megger test of the present utility model clip is pressed from both sides including mesopore
Mouth 1 and clip body 2.The mesopore jaws 1 is by the way of the center perforate of flat mouth jaws, with clip body 2 using not
Rust Steel material or aluminum alloy materials are connected as a single entity.When carrying out PT/CT secondary winding megger tests, mesopore jaws 1 is clipped in
PT/CT secondary winding screws（Screw rod）On.
As shown in Fig. 2 mesopore jaws of the present utility model is made up of upper jaws 1.1 and lower jaws 1.2, upper jaws 1.1
It is symmetrical along jaws slot line with lower jaws 1.2.Upper jaws 1.1 and the lower length of jaws 1.2 are 9mm, are highly 3mm, thickness is
1mm, centre bit is equipped with the aperture of circular arc composition.When upper jaws 1.1 and lower jaws 1.2 are engaged, the length of the left and right of aperture
For 7mm, upper jaws 1.1 and lower jaws（1.2）The distance between circular arc tangent line parallel with jaws slot line is 5mm, beneficial to folder
Effectively it can be snapped at when sub-folder is on the screw rod of PT/CT secondary windings on screw rod, it is ensured that effective electrical contact of clip and screw rod.
The above embodiment is interpreted as being merely to illustrate the utility model rather than limits of the present utility model protect
Protect scope.After the content of record of the present utility model has been read, technical staff can make various changes to the utility model
Or modification, these equivalence changes and modification equally fall into the utility model claim limited range.
Claims (7)
1. a kind of PT/CT secondary windings megger test clip, including clip body (2), the front end in clip body (2)
Extend at medium position and be provided with mesopore jaws (1), it is characterised in that the mesopore jaws (1) is using flat mouth jaws center
The mode of position perforate, when carrying out PT/CT secondary winding megger tests, passes through mesopore jaws (1) and PT/CT secondary windings
Screw or screw rod occlusion, mesopore jaws (1) arc diameter be slightly larger than screw diameter, without screw rod is surrounded completely, if on
Lower two arch sections can step up screw rod, can fix, be connected to wire.
2. PT/CT secondary windings megger test clip according to claim 1, it is characterised in that the mesopore
Jaws (1) is connected as a single entity with clip body (2) using stainless steel material or aluminum alloy materials.
3. PT/CT secondary windings megger test clip according to claim 1 or 2, it is characterised in that in described
Hole jaws (1) is made up of upper jaws (1.1) and lower jaws (1.2), and upper jaws (1.1) and lower jaws (1.2) are along jaws slot line
Symmetrically.
4. PT/CT secondary windings megger test clip according to claim 3, it is characterised in that the upper folder
The length of mouth (1.1) and lower jaws (1.2) is 9mm, is highly 3mm, and thickness is 1mm, and centre bit is equipped with the small of circular arc composition
Hole.
5. PT/CT secondary windings megger test clip according to claim 4, it is characterised in that when upper jaws
(1.1) and during lower jaws (1.2) occlusion, the length of the left and right of aperture is 7mm, upper jaws and lower jaws circular arc and jaws slot line
The distance between parallel tangent line is 5mm, it is ensured that screw rod can be effectively snapped at when clip is clipped on the screw rod of PT/CT secondary windings
On.
6. PT/CT secondary windings megger test clip according to claim 1, it is characterised in that the insulation
The high-pressure side or earth terminal of resistance test are clipped on corresponding windings port by mesopore jaws (1).
7. the PT/CT secondary winding megger test clips according to claim 1 or 2 or 4 or 5 or 6, its feature exists
In the PT/CT secondary windings are 10kV or 35kV PT/CT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251432.0U CN206362824U (en) | 2016-11-22 | 2016-11-22 | PT/CT secondary winding megger test clips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251432.0U CN206362824U (en) | 2016-11-22 | 2016-11-22 | PT/CT secondary winding megger test clips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206362824U true CN206362824U (en) | 2017-07-28 |
Family
ID=59372790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621251432.0U Active CN206362824U (en) | 2016-11-22 | 2016-11-22 | PT/CT secondary winding megger test clips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206362824U (en) |
-
2016
- 2016-11-22 CN CN201621251432.0U patent/CN206362824U/en active Active
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