CN207541103U - A kind of current transformer tests auxiliary tool - Google Patents
A kind of current transformer tests auxiliary tool Download PDFInfo
- Publication number
- CN207541103U CN207541103U CN201721626627.3U CN201721626627U CN207541103U CN 207541103 U CN207541103 U CN 207541103U CN 201721626627 U CN201721626627 U CN 201721626627U CN 207541103 U CN207541103 U CN 207541103U
- Authority
- CN
- China
- Prior art keywords
- grip block
- bar
- current transformer
- straight
- pedestal
- 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.)
- Withdrawn - After Issue
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000004020 conductor Substances 0.000 claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 230000003993 interaction Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 19
- 230000006698 induction Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 238000002474 experimental method Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002247 constant time method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses current transformers to test auxiliary tool,Including insulating bar,Clamping device is connected on the top of insulating bar,The clamping device packet is connected to the pedestal on insulating bar top,The first grip block is integrally formed on pedestal,The second grip block is hinged on pedestal,First grip block and the interaction of the second grip block are clamped on aluminum stranded conductor,Space between first grip block and the second grip block is interior,The first straight-bar is hinged in the first grip block medial surface bottom,It is equipped on the second grip block for across the through-hole of the first straight-bar,First straight-bar passes through through-hole and is slidably connected with the second grip block,It is furnished with wing nut on the first straight-bar,Wing nut, which is located on the outside of the second grip block and the first straight-bar between wing nut and the second grip block lateral surface, is arranged with the first compression spring,Positioning screw is threaded on the bottom of the first grip block,The tool is convenient for assembly and dismantles,It is convenient for carrying and uses,Substantially increase test efficiency and personnel safety.
Description
Technical field
The utility model belongs to technical field of electric power, more particularly to a kind of current transformer experiment auxiliary tool.
Background technology
Current transformer（Current Transformer, abbreviation CT）：According to electromagnetic induction principle by electric system high pressure
The high current of side is transformed to the low current of low-pressure side, is used for relay protection, automatic device and measuring instrumentss, realizes high and low pressure
Equipment blocking, and obtain high-pressure side loop current with enabling low pressure side apparatus safety and precise；CT is tested：Verificating current mutual inductor
No-load voltage ratio, polarity, C-V characteristic etc. whether be consistent with manufacture nameplate parameter or service requirement, its correctness is related to secondary
Correctness, electric energy measurement, the accuracy of metering and the reliability of protective device action of circuit connection, to the peace of electric system
Entirely, stablize, economical operation has great significance.
At present, 110 ~ 220kV current transformers are mostly porcelain knob in electric system, and mounting height is high, GB50150-2016
《Electrical equipment commissioning test regulation》Etc. regulations examine the new installation of current transformer, running periodic inspection and supplement are examined
It tests and all provides, specify the contents of a project, criterion of acceptability and the points for attention of inspection.It is needed during current transformer check test
Test apparatus with its both sides aluminum stranded conductor is connect, is usually that personnel are ascended a height by insulating ladder or grasped by means of Liftable type at present
Make platform or bucket arm vehicle is reached at experiment clamp, testing wire clamp is installed in current transformer both sides aluminum stranded conductor, both operations
All there are the problems such as security risk is big, the activity duration is long, and efficiency is low, and labor intensity is big for mode.
Utility model content
The utility model aim is to propose a kind of current transformer to solve above-mentioned problems of the prior art
Test auxiliary tool,
The utility model is adopted the technical scheme that in order to achieve the above objectives：A kind of current transformer tests backman
Tool, including insulating bar, clamping device is connected on the top of insulating bar, the clamping device packet is connected to the bottom on insulating bar top
Seat, the first grip block is integrally formed on pedestal, the second grip block, the first grip block and the second grip block are hinged on pedestal
Interaction is clamped on aluminum stranded conductor, and the space between the first grip block and the second grip block is interior, on the inside of the first grip block
Face bottom is hinged with the first straight-bar, is equipped on the second grip block for across the through-hole of the first straight-bar, the first straight-bar to pass through logical
Hole and be slidably connected with the second grip block, equipped with wing nut on the first straight-bar, wing nut be located at the second grip block outside
The first compression spring is arranged on side and the first straight-bar between wing nut and the second grip block lateral surface, in the first grip block
Positioning screw is threaded on bottom, the inner end of positioning screw withstands on the medial surface of the second grip block, is equipped on pedestal
For the binding post of joint test line, first grip block, pedestal are made by conductive material.
Preferably, equipped with pressure tongue, the pressure tongue top and the first grip block medial surface on the medial surface of the first grip block
It is hinged, it presses and the second compression spring is equipped between the bottom end of tongue and the first grip block medial surface.
Preferably, it is fixed with induction type electric alarm on the first grip block or the second grip block lateral surface.
Preferably, the dry sanding paper for removing aluminum stranded conductor surface oxide layer is equipped on the medial surface of the second grip block.
Preferably, upper installation seam and lower installation seam are equipped on the second grip block, is leaned on the lateral surface of the second grip block
Upper junction plate is integrally formed at nearly upper installation seam, is integrally formed with lower connecting plate at lower installation seam, the upper end of dry sanding paper passes through
Upper installation seam is clamped in by clip on upper junction plate, and the lower end of dry sanding paper passes through lower installation seam to be clamped in lower connection by clip
On plate.
Preferably, the insulating bar is multistage retractable rod.
Preferably, triangular support bracket is installed in the bottom end of insulating bar.
Preferably, the pedestal is threadedly coupled with insulating bar.
It is had the beneficial effect that possessed by the utility model：Personnel may stand on ground can be carried out CT experiment clamp line
Work, avoids ascending stair high-rise working and mistakenly entering into charged battery limits, reduces security risk；The present apparatus clamps the aluminum stranded conductor time
It is short, it greatly improves work efficiency；The adjustable in length of insulating bar works suitable for all 220/110kV CT testing grounds.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of current transformer experiment auxiliary tool, including insulating bar 14, pacifies in the bottom end of insulating bar 14
Equipped with triangular support bracket 15, clamping device is connected on the top of insulating bar 14, the clamping device packet is connected to insulating bar 14
The pedestal 13 on top, the pedestal 13 are threadedly coupled with insulating bar 14, the first grip block 5 are integrally formed on pedestal 13, the bottom of at
The second grip block 8 is hinged on seat 13, the first grip block 5 and the interaction of the second grip block 8 are clamped on aluminum stranded conductor, the first folder
It is interior to hold the space between 5 and second grip block 8 of plate, and the first straight-bar 12 is hinged in 5 medial surface bottom of the first grip block,
Two grip blocks 8 are equipped with for across the through-hole of the first straight-bar 12, the first straight-bar 12 to pass through through-hole and slided with the second grip block 8
Connection is located at the outside of the second grip block 8 and in wing nut on the first straight-bar 12 equipped with wing nut 10, wing nut 10
The first compression spring 11 is arranged on the first straight-bar 12 between 10 and 8 lateral surface of the second grip block, on the bottom of the first grip block 5
Positioning screw 3 is threaded with, the inner end of positioning screw 3 is withstood on the medial surface of the second grip block 8,13 or first on pedestal
Grip block 5 is equipped with the binding post 2 for joint test line 1, and first grip block 5, pedestal 13 are made by conductive material.
In order to further increase to the clamping action of aluminum stranded conductor and be touched from tap, match on the medial surface of the first grip block 5
Have pressure tongue 9, it is described pressure 9 top of tongue be hinged with 5 medial surface of the first grip block, press tongue 9 bottom end and 5 medial surface of the first grip block it
Between be equipped with the second compression spring 4.
In order to prevent maloperation and enter live zone and damage, in 8 lateral surface of the first grip block 5 or the second grip block
On be fixed with induction type electric alarm 6.
The dry sanding paper 7 for removing aluminum stranded conductor surface oxide layer is equipped on the medial surface of the second grip block 8.It is further
Dry sanding paper 7 is conveniently replaceable, upper installation seam and lower installation seam are equipped on the second grip block 8, in the lateral surface of the second grip block 8
It is upper that upper junction plate is integrally formed at upper installation seam, is integrally formed with lower connecting plate, the upper end of dry sanding paper 7 at lower installation seam
It is clamped on upper junction plate by clip across upper installation seam, the lower end of dry sanding paper 8 passes through lower installation seam to be clamped in by clip
On lower connecting plate.
In order to adapt to different height, the insulating bar 14 is multistage retractable rod, to adjust the height of clamping device.
When the utility model is used, wing nut 10 is suitably rotated according to the diameter of aluminum stranded conductor first to determine the second folder
It holds the maximum subtended angle of plate 8, then appropriate rotational positioning screw rod 3 and appropriate angle is opened to facilitate to aluminium with the second grip block 8 of guarantee
Twisted wire clamping position is pre-positioned, and is held insulating bar 14, is lifted clamping device, the aluminum stranded conductor of current transformer side is placed
In the subtended angle of the first grip block 5 or the second grip block 8, if necessary to remove the oxide layer on surface, insulating bar 14 is twisted back and forth
It is removed by dry sanding paper 7, continues to move up clamping device under the collective effect of the first compression spring 11 and the second compression spring 4, clamped
On aluminum stranded conductor, the height of insulating bar 14 is adjusted, triangular support bracket 15 supports on the ground；The present apparatus is equally clamped in electric current
On the aluminum stranded conductor of mutual inductor opposite side, test wire 1 is connected on test apparatus.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It still can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is carried out etc.
With replacement, but these modifications or replacement, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (8)
1. a kind of current transformer tests auxiliary tool, which is characterized in that including insulating bar, folder is connected on the top of insulating bar
Mechanism is held, the clamping device packet is connected to the pedestal on insulating bar top, the first grip block is integrally formed on pedestal, in pedestal
On be hinged with the second grip block, the first grip block and the interaction of the second grip block are clamped on aluminum stranded conductor, the first grip block and
Space between second grip block is interior, the first straight-bar is hinged in the first grip block medial surface bottom, on the second grip block
Equipped with for across the through-hole of the first straight-bar, the first straight-bar to pass through through-hole and is slidably connected with the second grip block, in the first straight-bar
Upper to be furnished with wing nut, wing nut is located at the outside of the second grip block and between wing nut and the second grip block lateral surface
The first straight-bar on be arranged with the first compression spring, positioning screw is threaded on the bottom of the first grip block, positioning screw
Inner end is withstood on the medial surface of the second grip block, and the binding post for joint test line, first clamping are equipped on pedestal
Plate, pedestal are made by conductive material.
2. current transformer according to claim 1 tests auxiliary tool, which is characterized in that in the inside of the first grip block
It is hinged on face equipped with pressure tongue, the pressure tongue top with the first grip block medial surface, presses bottom end and the first grip block medial surface of tongue
Between be equipped with the second compression spring.
3. current transformer according to claim 2 tests auxiliary tool, which is characterized in that in the first grip block or second
Induction type electric alarm is fixed on grip block lateral surface.
4. current transformer according to claim 3 tests auxiliary tool, which is characterized in that in the inside of the second grip block
Face is equipped with the dry sanding paper for removing aluminum stranded conductor surface oxide layer.
5. current transformer according to claim 4 tests auxiliary tool, which is characterized in that is equipped on the second grip block
Upper installation seam and lower installation seam, upper junction plate, close is integrally formed on the lateral surface of the second grip block at upper installation seam
Lower connecting plate is integrally formed at lower installation seam, the upper end of dry sanding paper passes through upper installation seam to be clamped on upper junction plate by clip,
The lower end of dry sanding paper passes through lower installation seam to be clamped on lower connecting plate by clip.
6. current transformer according to any one of claims 1 to 5 tests auxiliary tool, which is characterized in that the insulation
Bar is multistage retractable rod.
7. current transformer according to claim 6 tests auxiliary tool, which is characterized in that is installed in the bottom end of insulating bar
There is triangular support bracket.
8. current transformer according to claim 6 tests auxiliary tool, which is characterized in that the pedestal and insulating bar spiral shell
Line connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721626627.3U CN207541103U (en) | 2017-11-29 | 2017-11-29 | A kind of current transformer tests auxiliary tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721626627.3U CN207541103U (en) | 2017-11-29 | 2017-11-29 | A kind of current transformer tests auxiliary tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207541103U true CN207541103U (en) | 2018-06-26 |
Family
ID=62615843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721626627.3U Withdrawn - After Issue CN207541103U (en) | 2017-11-29 | 2017-11-29 | A kind of current transformer tests auxiliary tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207541103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796964A (en) * | 2017-11-29 | 2018-03-13 | 国家电网公司 | A kind of current transformer tests aid |
-
2017
- 2017-11-29 CN CN201721626627.3U patent/CN207541103U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796964A (en) * | 2017-11-29 | 2018-03-13 | 国家电网公司 | A kind of current transformer tests aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180626 Effective date of abandoning: 20200327 |
|
| AV01 | Patent right actively abandoned |