CN205786857U - Primary cut-out loop resistance test device - Google Patents
Primary cut-out loop resistance test device Download PDFInfo
- Publication number
- CN205786857U CN205786857U CN201620527184.1U CN201620527184U CN205786857U CN 205786857 U CN205786857 U CN 205786857U CN 201620527184 U CN201620527184 U CN 201620527184U CN 205786857 U CN205786857 U CN 205786857U
- Authority
- CN
- China
- Prior art keywords
- head
- upper grip
- recess
- central shaft
- resistance test
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of primary cut-out loop resistance test device, big in order to solve to there is primary cut-out loop resistance test data deviation in prior art, repeated measurement increases man-hour, extends the repair time, the problem reducing work efficiency.Specifically include: upper grip head and lower pliers head all arrange a recess, the zigzag chuck identical with recess radian is installed in recess, and upper grip head is relative with the recess of lower pliers head, is vertically mounted on vice body, below vice body, connect telescopic lever；Central shaft is set inside vice body, upper grip head is fixed on central shaft top, lower pliers head is socketed on the lower section of central shaft, upper grip head is fixing connects a fixed pulley, lower pliers head is fixing connects a movable pulley, is wound on by steel wire rope on fixed pulley and movable pulley, telescopic lever below the free end connection of steel wire rope, when making to pull downward on telescopic lever, steel wire rope drives the lower pliers head connected on movable pulley along central shaft axially-movable.Use the program can reduce measurement error rate, improve and measure efficiency.
Description
Technical field
This utility model relates to field of electrical equipment, particularly relates to a kind of primary cut-out loop resistance test dress
Put.
Background technology
Primary cut-out is owing to having the ability of instantaneous trip short circuit current, so the operation shape of primary cut-out
The quality of condition directly affects the reliability service of electrical network, and in routine test, loop resistance test is to enter
One of project of row.Due to primary cut-out self, measuring loop resistance needs by high-altitude wiring
Pincers just can complete
The transformer station of environment difference, due to dust, dust, the impact of oxide-film, is carrying out 110-330kV around
During the loop resistance of primary cut-out, staff, for obtaining test data accurately, needs repeated measurement,
The most even need to carry out, by Work tool, measurement of ascending a height.Test measurement data deviation is relatively big, repeated multiple times survey
Amount, while increasing man-hour, extends the repair time.
Summary of the invention
This utility model embodiment provides a kind of primary cut-out loop resistance test device, existing in order to solve
There is primary cut-out loop resistance test data deviation in technology big, repeated measurement increases man-hour, extends inspection
Repair the time, the problem reducing work efficiency.
This utility model embodiment provides a kind of primary cut-out loop resistance test device, and its feature exists
In, including: upper grip head 1, lower pliers head 2, chuck 3, vice body 4 and telescopic lever 5；Upper grip head 1 He
Lower pliers head 2 all arranges a recess, installs the zigzag chuck 3 identical with recess radian in recess, and
Upper grip head 1 is relative with the recess of lower pliers head 2, is vertically mounted on vice body 4, connects flexible drawing below vice body 4
Bar 5；Vice body 4 is internal arranges central shaft 6, and upper grip head 1 is fixed on central shaft 6 top, and lower pliers head 2 overlaps
Being connected to the lower section of central shaft 6, the fixing fixed pulley 7 that connects of upper grip head 1, the fixing connection of lower pliers head 2 one is moved
Pulley 8, is wound on steel wire rope 9 on fixed pulley 7 and movable pulley 8, below the free end connection of steel wire rope 9
Telescopic lever 5 so that when pulling downward on telescopic lever 5, steel wire rope 9 drives under connecting on movable pulley 8
Binding clip 2 is along central shaft 6 axially-movable.
It is also preferred that the left telescopic lever 5 uses isolation material to make.
It is also preferred that the left also include that p-wire fixes bar, fixing connection is connected one end of vice body 4 with telescopic lever 5.
It is also preferred that the left zigzag chuck 3 includes before and after's two panels, the sawtooth of anter chuck 3 and rear panel chuck 3 is wrong
Open and install and in the recess of upper grip head 1 or lower pliers head 2.
This utility model beneficial effect includes: effectively reduces 110～330kV breaker loop resistor and measures
The problem that error rate is bigger, improved chuck can make the contact of electrical voltage point, current point good, can effectively subtract
Little test error, meets code and product requirement.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, and constitutes a part for description, with
This utility model embodiment is used for explaining this utility model together, is not intended that restriction of the present utility model.
In the accompanying drawings:
Fig. 1 is the structural representation of the primary cut-out loop resistance test device in this utility model embodiment
Figure；
Fig. 2 is that the internal structure of the primary cut-out loop resistance test device in this utility model embodiment is shown
It is intended to.
Detailed description of the invention
In order to provide the accuracy improving primary cut-out loop resistance test data, improve the reality of testing efficiency
Existing scheme, this utility model embodiment provides a kind of primary cut-out loop resistance test device, below ties
Close Figure of description preferred embodiment of the present utility model is illustrated.
In primary cut-out loop resistance test process, the reason testing error in data big is caused to have staff training
Not in place, conductor resistivity of material is high, conductor temperature is high, circuit resistance tester operating current is little, loop
The resistance meter operating current persistent period is short, jointing clamp spring is aging, and grip force is low, the abrasion of jointing clamp chuck,
Oxide-film cannot be pierced through and equipment ambient air humidity is big.By analyzing, through confirming, cause measurement number
According to inaccurate, the main cause that contact resistance is big is that jointing clamp spring is aging, and grip force is low, and wiring clamp
Head abrasion, it is impossible to pierce through oxide-film.
Refering to shown in Fig. 1 and Fig. 2, this utility model embodiment provides a kind of primary cut-out loop resistance to survey
Electricity testing device, it is characterised in that including: upper grip head 1, lower pliers head 2, chuck 3, vice body 4 and flexible draw
Bar 5；Upper grip head 1 and lower pliers head 2 all arrange a recess, install the saw identical with recess radian in recess
Dentation chuck 3, and upper grip head 1 is relative with the recess of lower pliers head 2, is vertically mounted on vice body 4, vice body 4
Lower section connects telescopic lever 5；Vice body 4 is internal arranges central shaft 6, and upper grip head 1 is fixed on central shaft 6 and pushes up
End, lower pliers head 2 is socketed on the lower section of central shaft 6, and upper grip head 1 is fixing connects a fixed pulley 7, lower pliers head
2 fixing connection one movable pulleys 8, are wound on steel wire rope 9 on fixed pulley 7 and movable pulley 8, steel wire rope 9
Telescopic lever 5 below free end connection so that when pulling downward on telescopic lever 5, steel wire rope 9 drives dynamic sliding
The lower pliers head 2 connected on wheel 8 is along central shaft 6 axially-movable.
Wherein, telescopic lever 5 uses isolation material to make.This primary cut-out loop resistance test device is also
Fixing bar including p-wire, fixing connection is connected one end of vice body 4 with telescopic lever 5.Chopper loop electricity
The p-wire electricity of resistance test is heavier, and the breaker fracture positional distance ground that electric pressure is the highest is the highest, with
The height raised to increase, load-bearing is the biggest, and therefore this p-wire is fixed bar and is used for fixing p-wire, prevents
P-wire ruptures.
The spring of original jointing clamp is the most aging, can be greatly increased the grip force of jointing clamp by pulley mode,
The span wire system of assembly pulley has multiple, moves to the direction of movable pulley 8 as long as realizing movable pulley 8,
The internal sidewall near movable pulley 8 of vice body 4 arranges steel wire rope fixing point 10, down around movable pulley 8, to
On walk around the free end of fixed pulley 7 steel wire rope 9 and connect the telescopic lever 5 that can move down so that flexible
When pull bar 5 pulls downward on, movable pulley 8 can be with the lower pliers head 2 being fixed in the above along central shaft 6 axle
Move to the upper grip head 1 being fixed on fixed pulley 7.
For reaching to pierce through the purpose of oxide-film, new chuck 3 is designed as zigzag so that it is sharper, with
This simultaneously, upper lower chuck 3 is designed as double-disk, and the serrated portion of two panels mutually staggers, and makes chuck 3 be difficult to
Abrasion, the sharpness of the chuck 3 of new production be enough to puncture the oxide-film of contact surface.
In sum, the scheme that this utility model embodiment provides, effectively reduce 110～330kV and break
The problem that road device loop resistance measurement error rate is bigger, improved chuck can make electrical voltage point, current point contact
Well, can effectively reduce test error, meet code and product requirement.
Obviously, those skilled in the art this utility model can be carried out various change and modification without deviating from
Spirit and scope of the present utility model.So, if these amendments of the present utility model and modification belong to this reality
Within the scope of novel claim and equivalent technologies thereof, then this utility model is also intended to comprise these changes
With including modification.
Claims (4)
1. a primary cut-out loop resistance test device, it is characterised in that including: upper grip head, lower pincers
Head, chuck, vice body and telescopic lever；Upper grip head and lower pliers head all arrange a recess, install in recess
The zigzag chuck identical with recess radian, and upper grip head is relative with the recess of lower pliers head, is vertically mounted on
Vice body, connects telescopic lever below vice body；Arranging central shaft inside vice body, upper grip head is fixed on central shaft top
End, lower pliers head is socketed on the lower section of central shaft, and upper grip head is fixing connects a fixed pulley, and lower pliers head is fixing to be connected
One movable pulley, is wound on steel wire rope on fixed pulley and movable pulley, stretches and draw below the free end connection of steel wire rope
Bar so that when pulling downward on telescopic lever, steel wire rope drives the lower pliers head connected on movable pulley along central shaft
Axially-movable.
2. primary cut-out loop resistance test device as claimed in claim 1, it is characterised in that stretch
Contracting pull bar uses isolation material to make.
3. primary cut-out loop resistance test device as claimed in claim 1, it is characterised in that also
Fixing bar including p-wire, fixing connection is connected one end of vice body with telescopic lever.
4. primary cut-out loop resistance test device as claimed in claim 1, it is characterised in that saw
Include dentation chuck before and after's two panels, the sawtooth of anter chuck and rear panel chuck stagger and install and upper grip head or lower pincers
In the recess of head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620527184.1U CN205786857U (en) | 2016-06-02 | 2016-06-02 | Primary cut-out loop resistance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620527184.1U CN205786857U (en) | 2016-06-02 | 2016-06-02 | Primary cut-out loop resistance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205786857U true CN205786857U (en) | 2016-12-07 |
Family
ID=58135963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620527184.1U Expired - Fee Related CN205786857U (en) | 2016-06-02 | 2016-06-02 | Primary cut-out loop resistance test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205786857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109212317A (en) * | 2017-06-30 | 2019-01-15 | 河南平高通用电气有限公司 | A kind of switchgear major loop resistance measurement tooling |
-
2016
- 2016-06-02 CN CN201620527184.1U patent/CN205786857U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109212317A (en) * | 2017-06-30 | 2019-01-15 | 河南平高通用电气有限公司 | A kind of switchgear major loop resistance measurement tooling |
| CN109212317B (en) * | 2017-06-30 | 2021-08-13 | 河南平高通用电气有限公司 | Cubical switchboard major loop resistance measurement frock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170602 |