CN107796964A - A kind of current transformer tests aid - Google Patents
A kind of current transformer tests aid Download PDFInfo
- Publication number
- CN107796964A CN107796964A CN201711224357.8A CN201711224357A CN107796964A CN 107796964 A CN107796964 A CN 107796964A CN 201711224357 A CN201711224357 A CN 201711224357A CN 107796964 A CN107796964 A CN 107796964A
- Authority
- CN
- China
- Prior art keywords
- grip block
- bar
- current transformer
- straight
- base
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Abstract
The invention discloses current transformer to test aid,Including insulating bar,Clamping device is connected with the top of insulating bar,The clamping device bag is connected to the base on insulating bar top,The first grip block is integrally formed with base,The second grip block is hinged with base,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 with the first grip block medial surface bottom,The through hole being used for through the first straight-bar is provided with the second grip block,First straight-bar is slidably connected through through hole and 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 stage clip,Positioning screw is threaded with the bottom of the first grip block,The instrument is convenient for assembly and dismantles,It is convenient for carrying and uses,Substantially increase test efficiency and personnel safety.
Description
Technical field
The invention belongs to technical field of electric power, more particularly to a kind of current transformer experiment aid.
Background technology
Current transformer（Current Transformer, abbreviation CT）：According to electromagnetic induction principle by power system high pressure
The high current of side is transformed to the low current of low-pressure side, is used for relay protection, automatics 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 transformer
No-load voltage ratio, polarity, C-V characteristic etc. whether with dispatching from the factory nameplate parameter or service requirement is consistent, its correctness is related to secondary
Correctness, electric energy measurement, the accuracy of metering and the reliability of protection device action of circuit connection, to the peace of power system
Entirely, stably, economical operation has great significance.
At present, 110 ~ 220kV current transformers are mostly porcelain knob in power system, and setting height(from bottom) is high, GB50150-2016
《Electrical equipment commissioning test code》Etc. new installation inspection of the code to current transformer, operating periodic inspection and supplement inspection
Test and all provide, specify that the contents of a project, criterion of acceptability and the points for attention of inspection.Needed during current transformer check test
Test apparatus is connected with its both sides aluminum stranded conductor, 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
The problems such as security risk is big, activity duration length, and efficiency is low, and labor intensity is big all be present in mode.
The content of the invention
The present invention seeks to propose a kind of current transformer experiment to solve above-mentioned problems of the prior art
Aid,
This ××× is adopted the technical scheme that to reach above-mentioned purpose：A kind of current transformer tests aid, including
Insulating bar, clamping device is connected with the top of insulating bar, the clamping device bag is connected to the base on insulating bar top, the bottom of at
The first grip block is integrally formed with seat, the second grip block, the first grip block and the second grip block phase interaction are hinged with base
With being clamped on aluminum stranded conductor, the space between the first grip block and the second grip block is interior, in the first grip block medial surface bottom
Be hinged with the first straight-bar, on the second grip block be provided be used for through the first straight-bar through hole, the first straight-bar through through hole and with
Second grip block is slidably connected, and is furnished with wing nut on the first straight-bar, wing nut be located at the outside of the second grip block and
The first stage clip is arranged with the first straight-bar between wing nut and the second grip block lateral surface, on the bottom of the first grip block
Positioning screw is threaded with, the inner of positioning screw is withstood on the medial surface of the second grip block, is provided with base and is used to connect
The binding post of test wire is connect, first grip block, base 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 be hinged, press and the second stage clip is provided between the bottom 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 being used for removing aluminum stranded conductor surface oxide layer is provided with the medial surface of the second grip block.
Preferably, upper installation seam and lower installation seam are provided with the second grip block, is leaned on the lateral surface of the second grip block
Upper junction plate is integrally formed with 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 on upper junction plate by clip, and the lower end of dry sanding paper is clamped in lower connection through lower installation seam by clip
On plate.
Preferably, the insulating bar is multistage retractable rod.
Preferably, triangular support bracket is installed in the bottom of insulating bar.
Preferably, the base is threadedly coupled with insulating bar.
The advantageous effect of present invention is that：Personnel may stand on ground can be carried out CT experiment clamp line work
Make, avoid ascending stair high-rise working and mistakenly entering into charged battery limits, reduce security risk；The present apparatus clamping aluminum stranded conductor time is short,
Substantially increase operating efficiency；The adjustable in length of insulating bar, worked suitable for all 220/110kV CT testing grounds.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of current transformer experiment aid, including insulating bar 14, pacify in the bottom of insulating bar 14
Equipped with triangular support bracket 15, clamping device is connected with the top of insulating bar 14, the clamping device bag is connected to insulating bar 14
The base 13 on top, the base 13 are threadedly coupled with insulating bar 14, the first grip block 5 are integrally formed with base 13, the bottom of at
The second grip block 8 is hinged with 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 the grip block 8 of plate 5 and second, and the first straight-bar 12 is hinged with the medial surface bottom of the first grip block 5,
Two grip blocks 8 are provided with the through hole being used for through the first straight-bar 12, and the first straight-bar 12 slides through through hole and with the second grip block 8
Connection, is furnished with wing nut 10, wing nut 10 is located at the outside of the second grip block 8 and in wing nut on the first straight-bar 12
The first stage clip 11 is arranged with the first straight-bar 12 between 10 and the lateral surface of the second grip block 8, on the bottom of the first grip block 5
Positioning screw 3 is threaded with, the inner of positioning screw 3 is withstood on the medial surface of the second grip block 8,13 or first on base
Grip block 5 is provided with the binding post 2 for joint test line 1, and first grip block 5, base 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 somebody with somebody on the medial surface of the first grip block 5
Have pressure tongue 9, it is described pressure the top of tongue 9 be hinged with the medial surface of the first grip block 5, press tongue 9 bottom and the medial surface of the first grip block 5 it
Between be provided with the second stage clip 4.
Enter live zone in order to prevent maloperation and damage, in the first grip block 5 or the lateral surface of the second grip block 8
On be fixed with induction type electric alarm 6.
The dry sanding paper 7 for being used for removing aluminum stranded conductor surface oxide layer is provided with 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 provided with 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 with 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 in through upper installation seam by clip on upper junction plate, the lower end of dry sanding paper 8 is clamped in through lower installation seam 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.
In the use of the present invention, wing nut 10 is suitably rotated according to the diameter of aluminum stranded conductor to determine the second grip block first
8 maximum subtended angle, then appropriate rotational positioning screw rod 3 open appropriate angle to facilitate to aluminum stranded conductor with the second grip block 8 of guarantee
Clamping position carries out pre-determined bit, holds insulating bar 14, lifts clamping device, and the aluminum stranded conductor of current transformer side is placed on into the
In the subtended angle of one 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 and is passed through
Dry sanding paper 7 removes, and continues to move up clamping device under the collective effect of the first stage clip 11 and the second stage clip 4, is clamped in aluminium
On twisted wire, the height of insulating bar 14 is adjusted, triangular support bracket 15 supports on the ground；The present apparatus is equally clamped in Current Mutual Inductance
On the aluminum stranded conductor of device opposite side, test wire 1 is connected on test apparatus.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
But these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (8)
1. a kind of current transformer tests aid, it is characterised in that including insulating bar, folder is connected with the top of insulating bar
Mechanism is held, the clamping device bag is connected to the base on insulating bar top, the first grip block is integrally formed with base, in base
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 with the first grip block medial surface bottom, on the second grip block
Provided with for the through hole through the first straight-bar, the first straight-bar is slidably connected through through hole and 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 stage clip, positioning screw is threaded with the bottom of the first grip block, positioning screw
The inner is withstood on the medial surface of the second grip block, and the binding post for joint test line, first clamping are provided with base
Plate, base are made by conductive material.
2. current transformer according to claim 1 tests aid, it is characterised in that in the inner side 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 and the first grip block medial surface of tongue
Between be provided with the second stage clip.
3. current transformer according to claim 2 tests aid, it is characterised in that in the first grip block or second
Induction type electric alarm is fixed with grip block lateral surface.
4. current transformer according to claim 3 tests aid, it is characterised in that in the inner side of the second grip block
Face is provided with the dry sanding paper for being used for removing aluminum stranded conductor surface oxide layer.
5. current transformer according to claim 4 tests aid, it is characterised in that is provided with the second grip block
Upper installation seam and lower installation seam, upper junction plate, close is integrally formed with the lateral surface of the second grip block at upper installation seam
Lower connecting plate is integrally formed with lower installation seam, the upper end of dry sanding paper is clamped on upper junction plate through upper installation seam by clip,
The lower end of dry sanding paper is clamped on lower connecting plate through lower installation seam by clip.
6. the current transformer experiment aid according to any one of claim 1 to 5, it is characterised in that the insulation
Bar is multistage retractable rod.
7. current transformer according to claim 6 tests aid, it is characterised in that is installed in the bottom of insulating bar
There is triangular support bracket.
8. current transformer according to claim 6 tests aid, it is characterised in that the base and insulating bar spiral shell
Line connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711224357.8A CN107796964B (en) | 2017-11-29 | 2017-11-29 | Current transformer experiment appurtenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711224357.8A CN107796964B (en) | 2017-11-29 | 2017-11-29 | Current transformer experiment appurtenance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107796964A true CN107796964A (en) | 2018-03-13 |
| CN107796964B CN107796964B (en) | 2020-03-27 |
Family
ID=61537853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711224357.8A Active CN107796964B (en) | 2017-11-29 | 2017-11-29 | Current transformer experiment appurtenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107796964B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201066368Y (en) * | 2007-07-19 | 2008-05-28 | 山东力创科技有限公司 | Integrated testing pole for 6/10kV high voltage parameter |
| WO2013170874A1 (en) * | 2012-05-14 | 2013-11-21 | Siemens Aktiengesellschaft | Multiple terminals bushing assembly |
| CN203422399U (en) * | 2013-08-12 | 2014-02-05 | 国家电网公司 | High-altitude test clamp for high-voltage tests |
| CN204101601U (en) * | 2014-09-29 | 2015-01-14 | 国家电网公司 | A kind of test clip |
| CN204101717U (en) * | 2014-09-05 | 2015-01-14 | 国网安徽省电力公司阜阳供电公司 | A kind of mutual inductor measuring tries out wire clamp |
| CN104698420A (en) * | 2013-12-09 | 2015-06-10 | 国家电网公司 | Wiring device |
| CN204651808U (en) * | 2015-05-08 | 2015-09-16 | 国家电网公司 | A kind of portable 120 ~ 400mm 2steel reinforced aluminium conductor shunt line jig |
| CN106569006A (en) * | 2016-11-09 | 2017-04-19 | 国网山东省电力公司临朐县供电公司 | Telescopic type clamp-on ammeter for overhead line measurement |
| CN206671453U (en) * | 2017-04-25 | 2017-11-24 | 国网河南省电力公司检修公司 | Lightning arrester live-line test safety appliance |
| CN207541103U (en) * | 2017-11-29 | 2018-06-26 | 国家电网公司 | A kind of current transformer tests auxiliary tool |
-
2017
- 2017-11-29 CN CN201711224357.8A patent/CN107796964B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201066368Y (en) * | 2007-07-19 | 2008-05-28 | 山东力创科技有限公司 | Integrated testing pole for 6/10kV high voltage parameter |
| WO2013170874A1 (en) * | 2012-05-14 | 2013-11-21 | Siemens Aktiengesellschaft | Multiple terminals bushing assembly |
| CN203422399U (en) * | 2013-08-12 | 2014-02-05 | 国家电网公司 | High-altitude test clamp for high-voltage tests |
| CN104698420A (en) * | 2013-12-09 | 2015-06-10 | 国家电网公司 | Wiring device |
| CN204101717U (en) * | 2014-09-05 | 2015-01-14 | 国网安徽省电力公司阜阳供电公司 | A kind of mutual inductor measuring tries out wire clamp |
| CN204101601U (en) * | 2014-09-29 | 2015-01-14 | 国家电网公司 | A kind of test clip |
| CN204651808U (en) * | 2015-05-08 | 2015-09-16 | 国家电网公司 | A kind of portable 120 ~ 400mm 2steel reinforced aluminium conductor shunt line jig |
| CN106569006A (en) * | 2016-11-09 | 2017-04-19 | 国网山东省电力公司临朐县供电公司 | Telescopic type clamp-on ammeter for overhead line measurement |
| CN206671453U (en) * | 2017-04-25 | 2017-11-24 | 国网河南省电力公司检修公司 | Lightning arrester live-line test safety appliance |
| CN207541103U (en) * | 2017-11-29 | 2018-06-26 | 国家电网公司 | A kind of current transformer tests auxiliary tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107796964B (en) | 2020-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204925164U (en) | Electric power wiring anchor clamps | |
| CN202548160U (en) | Test rack of lightning arrester | |
| CN203385761U (en) | Wiring clamp for loop resistor measuring and overpressure resistant test | |
| CN104701770B (en) | A kind of insulating support for fixing drainage thread | |
| CN206348364U (en) | A kind of multifunction test insulating support rod | |
| CN207541103U (en) | A kind of current transformer tests auxiliary tool | |
| CN104897932A (en) | 10kV zinc oxide lightning arrester test support | |
| CN205920163U (en) | Ground resistance measure apparatus | |
| CN107796964A (en) | A kind of current transformer tests aid | |
| CN105846330B (en) | For arrester charged for replacement leakage current table special complete instrument and operational method | |
| CN205176073U (en) | Arrester live test drainage pincers | |
| CN112213524A (en) | Experimental termination of multi-functional transformer of 110kV and above transformer suspension type | |
| CN203658522U (en) | Safety equipment voltage withstand test special device | |
| CN104931905B (en) | High voltage electroscope starts voltage test device and test method | |
| CN203705590U (en) | Floor-type special device for withstand voltage tests of safety equipment | |
| CN205565255U (en) | High voltage insulation short circuit device | |
| CN207069096U (en) | A kind of locking device for grounding wire | |
| CN202522537U (en) | Insulating tool edge planar defect on-site detection device | |
| CN205826699U (en) | A kind of Dielectric Test of Transformer termination | |
| CN205608087U (en) | Insulation resistance's testing arrangement | |
| CN216595375U (en) | Withstand voltage testing arrangement of insulated paper | |
| CN112736505A (en) | Grounding device with contact resistance detection function | |
| CN102832554A (en) | Overhaul test grounding mechanical interlocking device of power device | |
| CN206378513U (en) | A kind of security appliance performance test equipment | |
| CN202817565U (en) | Electric power equipment overhaul test grounding mechanical locking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |