CN108871754A - A kind of electric system Buchholz relay verification auxiliary device - Google Patents
A kind of electric system Buchholz relay verification auxiliary device Download PDFInfo
- Publication number
- CN108871754A CN108871754A CN201810780661.9A CN201810780661A CN108871754A CN 108871754 A CN108871754 A CN 108871754A CN 201810780661 A CN201810780661 A CN 201810780661A CN 108871754 A CN108871754 A CN 108871754A
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- CN
- China
- Prior art keywords
- buchholz relay
- lifting platform
- support rod
- pedestal
- auxiliary device
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The application discloses a kind of electric system Buchholz relay verification auxiliary device, including two oil tube brackets, pedestal and gas lifting platform, gas lifting platform are located between two oil tube brackets；Oil tube bracket includes snap ring, support rod and bracket base, and the top of snap ring and support rod connects, and bracket base is located at the bottom end of support rod, and the both ends of bracket base are respectively equipped with first through hole；Gas lifting platform includes lifting platform pedestal, elevating mechanism and Buchholz relay mounting table from bottom to up, and lifting platform pedestal is connect with Buchholz relay mounting table by elevating mechanism, and the four corners of lifting platform pedestal are respectively equipped with the second through-hole；Pedestal includes two pedestals and sliding rail, and sliding rail passes through first through hole and the second through-hole, and two pedestals are connected by sliding rail, and the axis of snap ring is parallel with sliding rail.The application can realize that oil pipe is connect with Buchholz relay co-axial seal, simple to operate, improve Buchholz relay verification efficiency, avoid due to Buchholz relay it is not coaxially connected caused by Leakage.
Description
Technical field
This application involves electricity safety production experimental technique fields more particularly to a kind of electric system Buchholz relay to verify
Auxiliary device.
Background technique
In the power system, Buchholz relay is one of main protection of transformer, the correct movement of Buchholz relay concerning
The safety of transformer station high-voltage side bus.According to power equipment check regulation, electric device installing engineering electrical equipment commissioning test mark
The relevant regulations such as standard need to test to Buchholz relay before transformer puts into operation.
It examines Buchholz relay to need to be adjusted according to the transformer capacity of its protection, needs to be placed on after the completion of adjusting
It is verified on gas-actuated relay calibration stand.Checking table is connected by two oil pipes and ring flange with Buchholz relay, due to method
It pushes and connects by oil pipe between blue and Buchholz relay, when connection needs to live Buchholz relay with hand rest, easily occurs connecting not
Coaxially, the problems such as poorly sealed close, subsequent check is caused to fail, and subsequent check need to could be found after oil-filled it is poorly sealed
Problem takes a long time, and seriously affects the verification efficiency of Buchholz relay.
Summary of the invention
The application provides a kind of electric system Buchholz relay verification auxiliary device, to solve existing Buchholz relay verification
Method connects not coaxial and poorly sealed problem.
According to an embodiment of the present application, a kind of electric system Buchholz relay verification auxiliary device, including two oil are provided
Pipe holder, pedestal and gas lifting platform, the gas lifting platform are located between two oil tube brackets；The oil tube bracket includes card
Ring, support rod and bracket base, the snap ring are connect with the top of the support rod, and the bracket base is located at the support rod
Bottom end, the both ends of the bracket base are respectively equipped with first through hole；
The gas lifting platform includes lifting platform pedestal, elevating mechanism and Buchholz relay mounting table from bottom to up, described
Lifting platform pedestal is connect with the Buchholz relay mounting table by elevating mechanism, and the four corners of the lifting platform pedestal are set respectively
There is the second through-hole；
The pedestal include two pedestals and sliding rail, the sliding rail pass through the first through hole and second through-hole, two
A pedestal is connected by the sliding rail, and the axis of the snap ring is parallel with the sliding rail.
Optionally, the elevating mechanism includes two groups of support rod mechanisms and screw rod, and two groups of support rod mechanisms are connected by connecting rod
It connects, the support rod mechanism includes several X-shaped support rods being connected up and down, the first end of the support rod mechanism and the liter
Drop platform pedestal is hinged, and is connected between the second end of two groups of support rod mechanisms by drive rod, and the screw rod is vertically installed in
The center of the drive rod, the head end of the screw rod are threadedly coupled with the drive rod, and the screw rod is vertical with the sliding rail.
Optionally, the lifting platform pedestal is run through in the end of the screw rod, and the end of the screw rod is provided with terminal pad,
The terminal pad is equipped with rotating handles.
Optionally, the rear portion both ends of the lifting platform pedestal are respectively equipped with rectangular boss, are equipped with and engrave in the rectangular boss
Unoccupied orbital, the drive rod are set up in the hollow track.
Optionally, the front both ends of the lifting platform pedestal are respectively equipped with semicircle boss, set in the semicircle boss
There is fraising.
Optionally, the snap ring includes two semicircular band ear snap rings, and one end of two semicircular band ear snap rings passes through work
The other end of page button connection, two semicircular band ear snap rings passes through connection bolt fastening.
Optionally, the support rod is elevating lever, and the support rod is equipped with limit for height bolt.
Optionally, described device uses stainless steel material.
A kind of electric system Buchholz relay provided by the present application verifies auxiliary device, in use, adjustment bracket base and
Left and right oil pipe is installed using the snap ring of two oil tube brackets in the position of lifting platform pedestal on the slide rail respectively, then by gas after
Electric appliance is placed on the table top at the top of gas lifting platform, to guarantee that left and right oil pipe, ring flange and Buchholz relay axis are mutual
In parallel, it is finally grasped using the height that elevating mechanism adjusts Buchholz relay so that left and right oil pipe is contour with Buchholz relay later
Make gas-actuated relay calibration stand, right oil pipe is released to the left side, is completely embedded left and right oil pipe with Buchholz relay.The application can
It is simple to operate to realize that oil pipe and Buchholz relay are coaxial, are tightly connected, improve the work effect of Buchholz relay verification
Rate, avoid due to Buchholz relay it is not coaxially connected caused by Leakage.
Detailed description of the invention
Fig. 1 is a kind of structural representation of electric system Buchholz relay verification auxiliary device shown in the embodiment of the present application
Figure；
Fig. 2 is the structural schematic diagram of the gas lifting platform shown in the embodiment of the present application；
Fig. 3 uses schematic diagram for the electric system Buchholz relay verification auxiliary device shown in the embodiment of the present application.
Marginal data：1- oil tube bracket, 101- snap ring, 102- support rod, 103- bracket base, 104- first through hole,
105- semicircular band ear snap ring, 106- form loose-leaf binder, 107- connection bolt, 108- limit for height bolt；2- pedestal, 201- pedestal, 202-
Sliding rail；3- gas lifting platform, 301- lifting platform pedestal, 302- elevating mechanism, 303- Buchholz relay mounting table, 304- second are logical
Hole, 305- support rod mechanism, 306- screw rod, 307- connecting rod, 308-X shape support rod, 309- drive rod, 310- terminal pad, 311-
Rotating handles, 312- rectangular boss, 313- hollow track, 314- semicircle boss, 315- fraising；The left oil pipe of 4-；The right oil of 5-
Pipe；6- ring flange；7- Buchholz relay.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with attached drawing, it is right
Technical solution in the embodiment of the present application is clearly and completely described.
As shown in Figure 1-Figure 3, the embodiment of the present application provides a kind of electric system Buchholz relay verification auxiliary device, including
Two oil tube brackets 1, pedestal 2 and gas lifting platform 3, gas lifting platform 3 are located between two oil tube brackets 1；Oil tube bracket 1
Including snap ring 101, support rod 102 and bracket base 103, snap ring 101 is connect with the top of support rod 102, bracket base 103
Positioned at the bottom end of support rod 102, the both ends of bracket base 103 are respectively equipped with first through hole 104；
Gas lifting platform 3 includes lifting platform pedestal 301, elevating mechanism 302 and Buchholz relay mounting table from bottom to up
303, lifting platform pedestal 301 is connect with Buchholz relay mounting table 303 by elevating mechanism 302, the quadrangle of lifting platform pedestal 301
Place is respectively equipped with the second through-hole 304；
Pedestal 2 include two pedestals 201 and sliding rail 202, sliding rail 202 pass through first through hole 104 and the second through-hole 304, two
A pedestal 201 is connected by sliding rail 202, and the axis of snap ring 101 is parallel with sliding rail 202.
There are two oil tube brackets 1, the left oil pipe 4 of a user installation, the right oil pipe 5 of another user installation, and two oil pipes
The size of bracket 1, structure and mounting means are all identical, to guarantee that left oil pipe 4 and right oil pipe 5 are contour coaxial；Pedestal 2 is located at
The bottommost of whole device also provides shifting for playing a supporting role, while in pedestal 2 for oil tube bracket 1 and gas lifting platform 3
Required sliding rail 202 is moved, pedestal 201 is rectangular configuration, is fixed on 202 both ends of sliding rail；In gas lifting platform 3, Buchholz relay
303 user of mounting table places and support Buchholz relay 7, the height of the adjustable Buchholz relay 7 of elevating mechanism 302；Snap ring
101 axis is parallel with sliding rail 202, to guarantee that left oil pipe 4, right oil pipe 5 and the axis of Buchholz relay 7 are parallel to each other, works as benefit
With elevating mechanism 302 by Buchholz relay 7 adjust to it is contour with left oil pipe 4 (or right oil pipe 5) when, Buchholz relay may be implemented
7 it is coaxially connected, guarantee connection leakproofness.
Since each components in described device are in transformer oil immersion environment, in the present embodiment, described device
Using corrosion resistant stainless steel material, it is ensured that the stability and reliability of device work also advantageously improve making for device
Use the service life.
In use, the position of adjustment bracket base 103 and lifting platform pedestal 301 on sliding rail 202, utilizes two oil pipe branch
The snap ring 101 of frame 1 installs left oil pipe 4 and right oil pipe 5 respectively, and Buchholz relay 7 is then placed on 3 top of gas lifting platform
Buchholz relay mounting table 303 on, to guarantee that left oil pipe 4, right oil pipe 5, ring flange 6 and 7 axis of Buchholz relay are mutual
In parallel；The height for adjusting Buchholz relay 7 using elevating mechanism 302 later, so that the left oil pipe 4 of left and right oil pipe Buchholz relay 7
(or right oil pipe 5) is contour, last operation gas-actuated relay calibration stand, and right oil pipe 5 is released to the left side, enables Buchholz relay 7
It is enough with left oil pipe 4 and right oil pipe 5 be completely embedded.The application may be implemented oil pipe it is coaxial with Buchholz relay, be tightly connected, behaviour
Make it is simple and convenient, improve Buchholz relay verification working efficiency, avoid due to Buchholz relay it is not coaxially connected caused by
Leakage.
In the present embodiment, for the installation convenient for left oil pipe 4 and right oil pipe 5, in other possible implementations, snap ring
101 include two semicircular band ear snap rings 105, and one end of two semicircular band ear snap rings 105 is connected by form loose-leaf binder 106, and two
The other end of a semicircular band ear snap ring 105 is fastened by connection bolt 107.It is upper and lower that two semicircular band ear snap rings 105, which divide,
Two layers, the semicircular band ear snap ring 105 of bottom is fixed on the top of support rod 102.When removing connection bolt 107, snap ring 101
It is unclamped by the original ring status that is butted into, turns to two semicircular band ear snap rings 105, the semicircular band ear snap ring 105 on upper layer can
It is rotated along form loose-leaf binder 106, left oil pipe 4 (or right oil pipe 5) can be thus directly placed to the semicircular band ear snap ring of bottom
On 105, the semicircular band ear snap ring 105 on upper layer then will be rotated, two semicircular band ear snap rings 105 are reformed into docking
State, and fastened using connection bolt 107, so that left oil pipe 4 (or right oil pipe 5) be firmly installed.This oil pipe mounting means
It is simpler, conveniently, to improve the installation effectiveness of device.It should be noted that snap ring 101 should be with tubing size phase
Match.
To make device adapt to the requirement of different application environment, in the present embodiment, a kind of change oil pipe mounting height is also provided
Structure, specifically, support rod 102 be elevating lever, support rod 102 be equipped with limit for height bolt 108.Pass through turn limit for height bolt
108, it can quickly and easily change the height of support rod 102, in the process, should ensure that two oil tube brackets, 1 height is identical,
For example scale can be set on support rod 102, such staff can refer to scale to adjust required oil pipe height, moreover it is possible to
Guarantee that two oil tube brackets 1 are in identical height by scale.
For convenience of the height for steadily adjusting Buchholz relay 7, referring to Fig. 2, the present embodiment also provides one kind and specifically rises
Descending mechanism 302, elevating mechanism 302 include two groups of support rod mechanisms 305 and screw rod 306, and two groups of support rod mechanisms 305 pass through connecting rod
307 connections, support rod mechanism 305 include several connected X-shaped support rods 308 up and down, the first end of support rod mechanism 305 with
Lifting platform pedestal 301 is hinged, and is connected between the second end of two groups of support rod mechanisms 305 by drive rod 309, screw rod 306
It is vertically installed in the center of drive rod 309, the head end of screw rod 306 is threadedly coupled with drive rod 309, and screw rod 306 and sliding rail 202 hang down
Directly.
Two groups of support rod mechanisms 305 are placed side by side along 202 length direction of sliding rail, and support rod mechanism 305 includes two in Fig. 2
Connected X-shaped support rod 308 up and down.Between two groups of support rod mechanisms 305, the corresponding artis of X-shaped support rod 308 (such as
The hinge joint of the crosspoint of X-shaped support rod and two X-shaped support rods) connected by connecting rod 307, to improve elevator
The strength and stability of structure 302.Since screw rod 306 is to be threadedly coupled with drive rod 309, by rotating screw rod 306, can make to pass
Lever 309 is moved forward and backward along screw rod 306, and moving direction can be controlled according to the rotation direction of screw rod 306, then makes entire X-shaped
Support rod 308 is shunk or elongation, and is driven the lifting for realizing Buchholz relay mounting table 303, to adjust Buchholz relay 7
Highly.
Lifting platform pedestal 301 is run through in the end of screw rod 306, and the end of screw rod 306 is provided with terminal pad 310, terminal pad
310 are equipped with rotating handles 311.By rotating rotating handles 311, so that terminal pad 310 is driven to rotate, the meeting again of terminal pad 310
Screw rod 306 is driven to rotate, i.e., user need to only rotate rotating handles 311, can quickly and easily adjust the height of Buchholz relay 7
Degree.Rotating handles 311 are eccentrically set in terminal pad 310 or rotating handles 311 are arranged in 310 fringe region of terminal pad,
Exerting oneself for user can be reduced, to improve the service efficiency of device.
The rear portion both ends of lifting platform pedestal 301 are respectively equipped with rectangular boss 312, are equipped with hollow track in rectangular boss 312
313, drive rod 309 is set up in hollow track 313；The front both ends of lifting platform pedestal 301 are respectively equipped with semicircle boss
314, semicircle boss 314 is interior to be equipped with fraising 315, the first end Corresponding matching of fraising 315 and support rod mechanism 305.Hollow out
Track 313 can play the role of limit, and drive rod 309 can only be moved in hollow track 313, and moving direction is always
Perpendicular to sliding rail 202, to guarantee that the stability that elevating mechanism 302 works closes reliability.
From the above technical scheme, a kind of electric system Buchholz relay provided by the present application verifies auxiliary device, makes
Used time, adjustment bracket base and lifting platform pedestal position on the slide rail, using the snap ring of two oil tube brackets install respectively it is left,
Then Buchholz relay is placed on the table top at the top of gas lifting platform by right oil pipe, thus guarantee left and right oil pipe, ring flange and
Buchholz relay axis is parallel to each other, later using elevating mechanism adjust Buchholz relay height so that left and right oil pipe with watt
This relay is contour, last operation gas-actuated relay calibration stand, and right oil pipe is released to the left side, makes left and right oil pipe and gas relay
Device is completely embedded.The application may be implemented oil pipe it is coaxial with Buchholz relay, be tightly connected, avoid since Buchholz relay is not same
Leakage caused by axis connection, the structure of herein described device stability with higher and reliability, installation and use
Simpler convenience improves the working efficiency of Buchholz relay verification, and is suitable for the requirement of different application environment.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to the utility model
Other embodiments.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications are used
Way or adaptive change follow general principle of the invention and including the present invention it is undocumented in the art known in
Common sense or conventional techniques.The description and examples are only to be considered as illustrative, the true scope and spirit of the utility model
It is pointed out by the attached claims.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (8)
1. a kind of electric system Buchholz relay verifies auxiliary device, which is characterized in that including two oil tube brackets (1), pedestals
(2) it is located between two oil tube brackets (1) with gas lifting platform (3), the gas lifting platform (3)；Oil tube bracket (1) packet
Include snap ring (101), support rod (102) and bracket base (103), the top company of the snap ring (101) and the support rod (102)
It connects, the bracket base (103) is located at the bottom end of the support rod (102), and the both ends of the bracket base (103) are respectively equipped with
First through hole (104)；
The gas lifting platform (3) includes that lifting platform pedestal (301), elevating mechanism (302) and Buchholz relay are put from bottom to up
It sets platform (303), the lifting platform pedestal (301) and the Buchholz relay mounting table (303) are connected by elevating mechanism (302)
It connects, the four corners of the lifting platform pedestal (301) are respectively equipped with the second through-hole (304)；
The pedestal (2) includes two pedestals (201) and sliding rail (202), and the sliding rail (202) passes through the first through hole
(104) it is connected with second through-hole (304), two pedestals (201) by the sliding rail (202), the axis of the snap ring (101)
Line is parallel with the sliding rail (202).
2. electric system Buchholz relay according to claim 1 verifies auxiliary device, which is characterized in that the elevator
Structure (302) includes two groups of support rod mechanisms (305) and screw rod (306), and two groups of support rod mechanisms (305) are connected by connecting rod (307)
It connects, the support rod mechanism (305) includes several X-shaped support rods (308) being connected up and down, the support rod mechanism (305)
First end is hinged with the lifting platform pedestal (301), passes through transmission between the second end of two groups of support rod mechanisms (305)
Bar (309) connection, the screw rod (306) are vertically installed in the center of the drive rod (309), the head end of the screw rod (306)
It is threadedly coupled with the drive rod (309), the screw rod (306) is vertical with the sliding rail (202).
3. electric system Buchholz relay according to claim 2 verifies auxiliary device, which is characterized in that the screw rod
(306) the lifting platform pedestal (301) is run through in end, and the end of the screw rod (306) is provided with terminal pad (310), institute
Terminal pad (310) are stated equipped with rotating handles (311).
4. electric system Buchholz relay according to claim 2 or 3 verifies auxiliary device, which is characterized in that the liter
The rear portion both ends of drop platform pedestal (301) are respectively equipped with rectangular boss (312), and hollow track is equipped in the rectangular boss (312)
(313), the drive rod (309) is set up in the hollow track (313).
5. electric system Buchholz relay according to claim 2 or 3 verifies auxiliary device, which is characterized in that the liter
The front both ends of drop platform pedestal (301) are respectively equipped with semicircle boss (314), are equipped with fraising in the semicircle boss (314)
(315)。
6. electric system Buchholz relay according to claim 1 verifies auxiliary device, which is characterized in that the snap ring
It (101) include two semicircular band ear snap rings (105), one end of two semicircular band ear snap rings (105) passes through form loose-leaf binder (106)
The other end of connection, two semicircular band ear snap rings (105) passes through connection bolt (107) fastening.
7. electric system Buchholz relay according to claim 1 or 6 verifies auxiliary device, which is characterized in that the branch
Strut (102) is elevating lever, and the support rod (102) is equipped with limit for height bolt (108).
8. electric system Buchholz relay according to claim 1 verifies auxiliary device, which is characterized in that described device is adopted
Use stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810780661.9A CN108871754A (en) | 2018-07-17 | 2018-07-17 | A kind of electric system Buchholz relay verification auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810780661.9A CN108871754A (en) | 2018-07-17 | 2018-07-17 | A kind of electric system Buchholz relay verification auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108871754A true CN108871754A (en) | 2018-11-23 |
Family
ID=64302241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810780661.9A Pending CN108871754A (en) | 2018-07-17 | 2018-07-17 | A kind of electric system Buchholz relay verification auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108871754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881904A (en) * | 2021-01-15 | 2021-06-01 | 西安亚能电气有限责任公司 | Gas relay calibrator |
| CN114397570A (en) * | 2022-01-24 | 2022-04-26 | 郑州赛奥电子股份有限公司 | Gas relay calibration device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202420774U (en) * | 2011-12-15 | 2012-09-05 | 河南省电力公司新乡供电公司 | Leakage detection tool for gas relay |
| CN202453468U (en) * | 2012-01-11 | 2012-09-26 | 邢台兴力集团有限公司 | Checking device for gas relay |
| CN104330261A (en) * | 2014-10-17 | 2015-02-04 | 北京动力机械研究所 | Automatic large engine part butting device |
| CN205538191U (en) * | 2016-03-25 | 2016-08-31 | 国家电网公司 | Buchholz relay check -up auxiliary device |
| CN106644480A (en) * | 2016-12-27 | 2017-05-10 | 大连海事大学 | Test bed for researching lubricating property of tilting-pad bearing film |
| CN106799539A (en) * | 2016-11-30 | 2017-06-06 | 湖州佳创自动化科技有限公司 | A kind of lifting-positioning device in Laser Processing line |
| CN106908199A (en) * | 2017-03-09 | 2017-06-30 | 哈尔滨工业大学 | The inclined workpiece barycenter high precision measuring device of big matter |
| CN107039166A (en) * | 2017-04-19 | 2017-08-11 | 国家电网公司 | A kind of transformer Buchholz relay attaching/detaching apparatus |
| CN206556870U (en) * | 2017-01-19 | 2017-10-13 | 郑州机械研究所 | A kind of efficient no-load test device of urban rail gear-box |
| CN107658770A (en) * | 2017-10-20 | 2018-02-02 | 广东电网有限责任公司湛江供电局 | A kind of dismounting platform of switch cabinet current transformer |
| CN107986191A (en) * | 2017-12-01 | 2018-05-04 | 浙江理工大学 | A kind of cabinet type weight handling elevator of double lead-screw |
| CN108002290A (en) * | 2017-12-01 | 2018-05-08 | 浙江理工大学 | A kind of cabinet type cargo handling elevator based on leading screw |
-
2018
- 2018-07-17 CN CN201810780661.9A patent/CN108871754A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202420774U (en) * | 2011-12-15 | 2012-09-05 | 河南省电力公司新乡供电公司 | Leakage detection tool for gas relay |
| CN202453468U (en) * | 2012-01-11 | 2012-09-26 | 邢台兴力集团有限公司 | Checking device for gas relay |
| CN104330261A (en) * | 2014-10-17 | 2015-02-04 | 北京动力机械研究所 | Automatic large engine part butting device |
| CN205538191U (en) * | 2016-03-25 | 2016-08-31 | 国家电网公司 | Buchholz relay check -up auxiliary device |
| CN106799539A (en) * | 2016-11-30 | 2017-06-06 | 湖州佳创自动化科技有限公司 | A kind of lifting-positioning device in Laser Processing line |
| CN106644480A (en) * | 2016-12-27 | 2017-05-10 | 大连海事大学 | Test bed for researching lubricating property of tilting-pad bearing film |
| CN206556870U (en) * | 2017-01-19 | 2017-10-13 | 郑州机械研究所 | A kind of efficient no-load test device of urban rail gear-box |
| CN106908199A (en) * | 2017-03-09 | 2017-06-30 | 哈尔滨工业大学 | The inclined workpiece barycenter high precision measuring device of big matter |
| CN107039166A (en) * | 2017-04-19 | 2017-08-11 | 国家电网公司 | A kind of transformer Buchholz relay attaching/detaching apparatus |
| CN107658770A (en) * | 2017-10-20 | 2018-02-02 | 广东电网有限责任公司湛江供电局 | A kind of dismounting platform of switch cabinet current transformer |
| CN107986191A (en) * | 2017-12-01 | 2018-05-04 | 浙江理工大学 | A kind of cabinet type weight handling elevator of double lead-screw |
| CN108002290A (en) * | 2017-12-01 | 2018-05-08 | 浙江理工大学 | A kind of cabinet type cargo handling elevator based on leading screw |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112881904A (en) * | 2021-01-15 | 2021-06-01 | 西安亚能电气有限责任公司 | Gas relay calibrator |
| CN112881904B (en) * | 2021-01-15 | 2024-09-03 | 西安亚能电气有限责任公司 | Gas relay calibrator |
| CN114397570A (en) * | 2022-01-24 | 2022-04-26 | 郑州赛奥电子股份有限公司 | Gas relay calibration device |
| CN114397570B (en) * | 2022-01-24 | 2022-10-25 | 郑州赛奥电子股份有限公司 | Gas relay calibration device |
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Application publication date: 20181123 |