CN104049206B - Breaker checking table fixture - Google Patents
Breaker checking table fixture Download PDFInfo
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- CN104049206B CN104049206B CN201410249470.1A CN201410249470A CN104049206B CN 104049206 B CN104049206 B CN 104049206B CN 201410249470 A CN201410249470 A CN 201410249470A CN 104049206 B CN104049206 B CN 104049206B
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- collet
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- breaker
- copper sheet
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
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Abstract
Breaker checking table fixture, including fixture mount, collet copper sheet and test power supply, the fixture mount is equipped with two groups of collet groups that verified breaker two rows busbar is clamped respectively, every group of collet group includes the two rows of collet copper sheet groups worked in coordination and realize clamping, include the collet copper sheet of at least five settings corresponding with each collet copper sheet in another row folding head copper sheet group with group collet group per row folding head copper sheet group, is separately positioned on a pair of of the collet copper sheet being correspondingly arranged in two rows of collet copper sheet groups and forms a cartridge unit.The purpose of the present invention is to provide a kind of verification efficiency soon, the breaker checking table fixture of high degree of automation.
Description
Technical field
The present invention relates to electric appliances to verify field, more particularly to a kind of breaker checking table fixture.
Background technology
Breaker currently on the market is since kind model specification is more, volume weight so that is needed before verification breaker every time
It to be adjusted according to the different model of breaker, the phase line spacing between every phase fixture, increase one in checking procedure
Road preparatory process reduces verification efficiency.In addition, what is used in industry is traditional single-phase verification mode, i.e., it is every time
Manually by a phase shift to fixture of product, clamp is verified, after completing verification, fixture is unclamped, then by people
An other phase for work mobile product moves on under fixture, and clamp is verified, is mainly lacked existing for such verification mode
It falls into and uses artificial commutation when being commutation, speed is slower, the inefficient of production, and product quality consistency is low.
Invention content
It is an object of the invention to overcome the defect of the above-mentioned prior art, provide that a kind of verification efficiency is fast, the degree of automation
High breaker checking table fixture.
To achieve the above object, present invention employs following technical schemes:
A kind of breaker checking table fixture, including fixture mount 101, collet copper sheet and test power supply 3, the fixture branch
Frame 101 is equipped with two groups of collet groups that the two rows of busbares of verified breaker 6 are clamped respectively, and every group of collet group 2010 includes mutually matching
Two rows of collet copper sheet groups of conjunction realization clamping organize the another of collet group 2010 including at least five per row folding head copper sheet group 201 with same
The collet copper sheet 200a of each corresponding settings of collet copper sheet 200b, is separately positioned on two row foldings in one row folding head copper sheet group 202
A pair of of the collet copper sheet being correspondingly arranged in head copper sheet group forms a cartridge unit.
Further, two rows of busbares of the breaker 6 are respectively by the collet of at least three arbitrary neighborhoods in two groups of collet groups
Unit is clamped or two rows of busbares of the breaker 6 are respectively by two groups of collet groups at least three arbitrary non-conterminous collets
Unit is clamped.
Further, each terminals of each phase busbar 611 of the breaker 6 are by every group of collet group 2010 at least 2
A adjacent cartridge unit clamping.
Further, the mounting plate that at least a row folding head copper sheet group can move up and down with two respectively of two groups of collet groups
Connection, being equipped on the mounting plate can drive installation plate movement two rows of bus clip for realizing two groups of collet groups to breaker 6
The front end cylinder held.
Further, it is equidistantly arranged per each collet copper sheet of row folding head copper sheet group in two groups of collet groups.
Further, every group of collet group 2010 includes 22 pairs of collet copper sheets of corresponding setting.
Further, the cartridge unit in one group of collet group 2010 in two groups of collet groups respectively with test power supply 3
One end connection, the cartridge unit in another group of collet group 2020 connect with the other end of test power supply 3 respectively；Two groups of collet groups
Upper corresponding a pair of of cartridge unit forms a cartridge unit group, at least one cartridge unit and test in each cartridge unit group
3 junction of power supply also sets up on-off system 5.
Further, on-off system 5 includes the static connection end 501 for the wire end setting drawn by cartridge unit, installation
On rear end cylinder 503 and with the dynamic connecting pin 502 that is connected of test power supply 3, the control terminal of the rear end cylinder 503 with
PLC is connected.
Further, the on-off system 5 includes the supply terminals drawn by test power supply 3 and is drawn by cartridge unit
Collet terminals, be connected by the electric-controlled switch controlled by PLC between the supply terminals and collet terminals.
Further, in two groups of collet groups any one group of collet group be equipped with can adjust two groups of collet groups between distance
Height cylinder.
The present invention is realized by the way that the multipair collet group being made of the collet copper sheet installed relatively is arranged without adjusting fixture
The distance between unit is the phase line spacing for being suitable for various specifications breaker, enhances the versatility of cramp for verifying and checking, reduces
The preparatory process of verification improves verification efficiency.In addition, can be programmed by PLC by what is installed between collet group and test power supply
The on-off system of control, automatic commutation when realizing test between fixture improve the degree of automation of cramp for verifying and checking and break
The verification speed of road device.
Description of the drawings
Fig. 1 is the Facad structure figure of the breaker checking table fixture of the present invention；
Fig. 2 be equipped with the checking table of verification product along Fig. 1 A-A to sectional view；
Fig. 3 is the structural schematic diagram of rear end cylinder, collet group and test power supply connection；
Fig. 4 is the fixture operating circuit schematic diagram of the present invention；
Fig. 5 is that present invention clamping verifies a kind of embodiment of breaker；
Fig. 6 is the embodiment of another breaker of present invention clamping verification；
Fig. 7 is the embodiment that present invention clamping verifies another breaker.
Specific implementation mode
The breaker checking table fixture of the present invention includes fixture mount 101, collet copper sheet and test power supply 3, the folder
Tool holder 101 is equipped with two groups of collet groups that the two rows of busbares of verified breaker 6 are clamped respectively, and every group of collet group includes mutually matching
The two rows of collet copper sheet groups for realizing clamping are closed, include at least five and another row folding head with group collet group per row folding head copper sheet group
The collet copper sheet of the corresponding setting of each collet copper sheet in copper sheet group.It is separately positioned on and is correspondingly arranged in two rows of collet copper sheet groups
A pair of of collet copper sheet forms a cartridge unit, and corresponding a pair of of cartridge unit forms a cartridge unit in two groups of collet groups
Each cartridge unit group of group, two groups of collet groups is connect by way of in parallel with test power supply 3.In each cartridge unit group extremely
A few cartridge unit is additionally provided with the on-off system 5 that can be controlled by PLC, break-make dress with 3 junction of test power supply
5 are set to can be used for realizing automatic commutation function during verifying breaker.
One specific embodiment of the breaker checking table fixture of the present invention as shown in Figure 1, fixture mount 101 are fixed on
On 1 operation panel of experimental bench.The two rows that the breaker 6 for being useful for clamping three-phase is mounted side by side in the fixture mount 101 are female
Line into wire clamp head group 2010 and outlet collet group 2020.
Two rows of busbares of breaker 6 are respectively inlet wire busbar 611 and outlet bus 612, and inlet wire busbar 611 connects including three
Line end, respectively A phases inlet wire 611a, B phases inlet wire 611b and C phase inlet wire 611c；Outlet bus 612 includes three terminals, point
It Wei not A phase outlet 612a, B phase outlet 612b and C phase outlets 612c；The corresponding phase that breaker is constituted with the line end that connects is female
Line, as A phase inlet wire 611a and A phase outlets 612a constitutes the A phase busbares of breaker.Between the breaker two-phase busbar of different size
Distance be different, and the size of each terminals of breaker of different size is also different, and different breakers are two rows of female
Difference in height between line is also different.
Two rows of collet copper sheet groups are respectively included into wire clamp head group 2010 and outlet collet group 2020, into wire clamp head group 2010
Two rows of collet copper sheet groups are collet copper sheet group 202 under inlet wire upper grip copper sheet group 201 and inlet wire, inlet wire upper grip copper sheet group 201
Be respectively correspondingly arranged on 22 collet copper sheets under inlet wire in collet copper sheet group 202 respectively, be separately positioned on two rows of collet copper sheet groups
On a pair of of collet copper sheet for being correspondingly arranged form a cartridge unit；The structure of outlet collet group 2020 with into wire clamp head group 2010
Identical, two rows of collet copper sheet groups of outlet collet group 2020 are collet copper sheet group under outlet upper grip copper sheet group 211 and outlet
212.22 cartridge units into wire clamp head group 2010 and outlet collet group 2020 are arranged in the way of number 01 to 22 shown in Fig. 1
Row.On into wire clamp head group 2010 and outlet collet group 2020 it is corresponding a pair of cartridge unit form a cartridge unit group, such as into
The cartridge unit that number is 01 in wire clamp head group 2010 constitutes one with the cartridge unit that number is 01 in outlet collet group 2020
Cartridge unit group.The collet copper sheet of the present invention is only title, and it is non-limiting must be made of copper, can also be other conductive golds
Belong to.
It is equidistantly close into each collet copper sheet per row folding head copper sheet group in wire clamp head group 2010 and outlet collet group 2020
Collection arrangement.The installation that the inlet wire upper grip copper sheet group 201 and outlet upper grip copper sheet group 211 can move up and down with two pieces respectively
Plate connects, and relatively, collet copper sheet group 212 is then mounted on fixed mounting bracket under collet copper sheet group 202 and outlet under inlet wire.
Inlet wire upper grip copper sheet group 201 is connect with the first mounting plate 102a, and first both sides mounting plate 102a are respectively equipped on one
Front end cylinder 103, the upper front end cylinder 103 can drive the first mounting plate 102a to move and drive inlet wire upper grip copper sheet group
The 201 disposable inlet wire busbares 611 for clamping breaker 6.Similarly, outlet upper grip copper sheet group 211 and the second mounting plate 102b
Connection, second both sides mounting plate 102b are respectively equipped with a lower front end cylinder 104, and the lower front end cylinder 104 can drive
The outlet bus 612 that dynamic second mounting plate 102b is moved and outlet upper grip copper sheet group 211 is driven disposably to clamp breaker 6.
It is contemplated that can divide into any one row in wire clamp head group 2010 and outlet collet group 2020 or two rows of collet copper sheet groups
It is not fixed on the mounting plate that can be moved up and down, the clamping to 6 busbar of breaker is realized by the driving of front end cylinder.Certainly, pacify
Loading board can also use the other manner driving outside cylinder.Height is additionally provided on into wire clamp head group 2010 or outlet collet group 2020
Cylinder can adjust two rows of to adapt to different size breaker into the height between wire clamp head group 2010 and outlet collet group 2020
The difference in height of busbar.
The breaker checking table fixture of this implementation can meet the verification demand of different size circuit breaker, when different rule
When the distance between breaker two-phase busbar of lattice is different, without carrying out the adjustment of fixture spacing, flexible assembly life can be met
Producing line verifies immediately online.Meanwhile the multiphase busbar of verification product can be disposably clamped by front end cylinder drive installation plate, letter
Change workflow, improves work efficiency.When the difference in height difference between different breaker two rows busbares, then it can pass through height
Degree cylinder is adjusted into the vertical range between wire clamp head group 2010 and outlet collet group 2020, can also use manual setting certainly
Etc. other schemes.As shown in fig. 1, two rows of busbares of breaker 6 are respectively by into wire clamp head group 2010 and outlet collet group 2020
Clamping, into wire clamp head group 2010 number 01 to 06 6 cartridge units to A phase inlet wire 611a, B phase inlet wires of three-phase breaker
611b and C phase inlet wires 611c clamps to form electrical connection；6 cartridge units of the number 01 to 06 of outlet collet group 2020 are to three-phase
A phase outlet 612a, B phase outlet 612b and C phase outlets 612c of breaker clamps to form electrical connection, and A phase inlet wires 611a is by numbering
It is clamped simultaneously for two cartridge units of 05-06.
When the distance between breaker two-phase busbar difference, without carrying out the adjustment of fixture spacing.Specific example such as Fig. 5
Shown in Fig. 7.
Two rows of busbares of breaker 6 are clamped by the cartridge unit of at least three arbitrary neighborhoods in two groups of collet groups solid respectively
It is fixed.A kind of embodiment of breaker 6 is clamped in the present invention as shown in Figure 5, and verified breaker 6 is three-phase breaker, breaker 6
Three-phase inlet wire busbar 611 and three-phase outlet bus 612 respectively by into numbering in wire clamp head group 2010 and outlet collet group 2020
It is gripped for 01,02 and 03 3 adjacent cartridge units.Specifically, the A phase inlet wire 611a of the A phase busbares of breaker 6 and
A phase outlet 612a are gripped by the cartridge unit group for the cartridge unit composition that a pair of of number is 03, the B phase inlet wires of B phase busbares
611b and B phase outlet 612b are gripped by the cartridge unit group for the cartridge unit composition that a pair of of number is 02, the C of C phase busbares
Phase inlet wire 611c and C phase outlet 612c is gripped by the cartridge unit group for the cartridge unit composition that a pair of of number is 01.
Two rows of busbares of breaker 6 are clamped by two groups of collet groups at least three arbitrary non-conterminous cartridge units solid respectively
It is fixed.The embodiment of present invention clamping another kind breaker 6 as shown in Figure 6, verified breaker 6 are three-phase breaker, open circuit
The three-phase inlet wire busbar 611 and three-phase outlet bus 612 of device 6 are respectively by into compiling in wire clamp head group 2010 and outlet collet group 2020
It number is gripped for 01,03 and 05 3 non-conterminous cartridge units.Due to the distance between breaker two-phase busbar difference,
2 cartridge units that number is 02 and 04 are available.
Each terminals of each phase busbar of the breaker 6 are by the adjacent collet list of at least two in every group of collet group
Member grips.The embodiment of another breaker 6 is clamped in the present invention as shown in Figure 7, and verified breaker 6 is three-phase break
Device, the three-phase inlet wire busbar 611 and three-phase outlet bus 612 of breaker 6 are respectively by into wire clamp head group 2010 and outlet collet group
2020 cartridge unit clamping.Since the distance between the breaker two-phase busbar of different size is different, and different size
The sizes of each terminals of breaker be also different.The A phase inlet wire 611a of the A phase busbares of breaker 6 are simultaneously by into wire clamp
2 cartridge units that number is 07 and 08 in head group 2010 grip, and A phase outlet 612a are compiled in outlet collet group 2020
It number is gripped for 07 and 08 2 cartridge units.The B phase inlet wire 611b and B phase outlets 612b of B phase busbares is then respectively by two
The cartridge unit that number is 04 and 05 in group collet group grips jointly.C phase inlet wire 611c and C the phase outlets of C phase busbares
612c is then gripped by the cartridge unit that number is 01 and 02 in two groups of collet groups jointly respectively.Number is 2 of 03 and 06
Cartridge unit is then available.
The cartridge unit in one group of collet group in two groups of collet groups of the invention is connect with one end of test power supply 3 respectively,
Cartridge unit in another group of collet group is connect with the other end of test power supply 3 respectively；Corresponding a pair of of folder in two groups of collet groups
Head unit forms a cartridge unit group, in each cartridge unit group at least one cartridge unit with 3 junction of test power supply also
It is provided with the on-off system 5 that can be controlled by PLC.Access test power supply 3 in parallel between multiple cartridge unit groups of two groups of collet groups,
The junction of cartridge unit and test power supply (3) is by the way of being flexible coupling.When carrying out school to the breaker 6 being fixed on fixture
When testing, the on-off system 5 can select a cartridge unit group of the control clamping wherein phase busbar of breaker 6 by PLC
Or adjacent several cartridge unit groups are connected with test power supply 3, to make test power supply 3 and 6 phase busbar therein of breaker
Access is formed, is tested during the electrical parameter of required verification is inputted into 6 phase busbar therein of breaker, and is completed to one
After the test of phase busbar, commutation test job is carried out without manually running circuit breaker 6, finger can be incorporated into PLC by industrial personal computer
It enables program disconnect the on-off system having been turned on and is closed the on-off system corresponding to next phase busbar and carry out test job, realize
PLC controls on-off system 5 and completes automatic commutation function one by one, enhances the degree of automation of device, and improve verification
Working efficiency.Meanwhile the mode being flexible coupling keeps the connection of collet and test power supply more flexible, it is right after the multiple movement of protection collet
The bending of junction damages, and improves equipment job stability.PLC should control the conducting of which on-off system 5, can pass through detection
Fixture unit is identified in element, or by other well known scheme, can also be judged by artificial mode.The present invention's
The on-off system 5 of breaker checking table fixture can also control its auto switching otherwise, can also pass through artificial side
Formula judges, is only a preferred embodiment of the present invention by PLC controls.
As shown in Figure 2 the present invention one specific embodiment of on-off system, Fig. 2 be along Fig. 1 A-A to cross-section structure,
The breaker 6 is placed on the table top of experimental bench 1, and the inlet wire busbar 611 of breaker 6 is by into wire clamp head group 2010
1 cartridge unit clamping, the cartridge unit are made of collet copper sheet 200b under inlet wire upper grip copper sheet 200a and inlet wire；Outlet is female
Line 612 is clamped by 1 cartridge unit of outlet collet group 2020, and the cartridge unit is by under outlet upper grip copper sheet 210a and outlet
Collet copper sheet 210b compositions.The on-off system 5 includes the supply terminals drawn by test power supply 3 and is drawn by cartridge unit
The collet terminals gone out, are connected between the supply terminals and collet terminals by the electric-controlled switch controlled by PLC.
The connection of connection and cartridge unit and test power supply 3 of the cartridge unit with collet terminals is interconnected by 4 phase of flexible connecting line
It connects, flexible connecting line 4 is not easy to bend with the regular movement of collet.Meanwhile on-off system makes apparatus structure using electric-controlled switch
Simply, easy for installation and break-make speed is fast.
Another embodiment of the on-off system of the present invention as shown in Figures 3 and 4, the on-off system 5 is by rear end gas
Cylinder 503 drives, and the on-off system 5 of the present embodiment as shown in Figure 3 includes the quiet of the wire end setting drawn by cartridge unit
Connecting pin 501, the dynamic connecting pin 502 being connected on rear end cylinder 503 and with test power supply 3, the rear end cylinder
503 control terminal is connected with the output end of PLC, and moves connecting pin 502 and 501 phase of static connection end by the order-driven of PLC
Contact forms electrical connection to turning circuit.The break-make performance of the on-off system driven by rear end cylinder is more stable.Such as Fig. 4 institutes
Going out in the wherein phase of breaker 6 is arranged in the on-off system circuit diagram shown, the on-off system 5 driven by rear end cylinder 503
Branch road between line busbar 612 and a test power supply 3 wherein pole, and on-off system 5 is parallel connection between each phase of breaker 6
The relationship of connection realizes that control is unaffected between each other respectively.
One of the breaker checking table fixture checking procedure of present invention scheme is as described below：
The breaker that rated current is 2000A is verified, the inlet wire busbar and outlet bus of the three-phase breaker are simultaneously
It is clamped by collet, according to the cartridge unit group for the cartridge unit composition that the specification of breaker need to be 01,03,05 with number.It needs
When detecting A phases, i.e., the cartridge unit group for the cartridge unit composition that number is 05 needs to be powered, corresponding rear end in the cartridge unit group
Cylinder closes a floodgate, other two groups of no powers；After A phases complete energizing test；B phases, C phases are automatically switched to, the method for energization is also same.With
This completes the automatic commutation verification of the single-phase performance of breaker.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention's
Protection domain.
Claims (9)
1. a kind of breaker checking table fixture, including fixture mount (101), collet copper sheet (200a, 200b, 210a, 210b) and
Test power supply (3), it is characterised in that：
The fixture mount (101) is equipped with two groups of folders that the two rows of busbares (611,612) of verified breaker (6) are clamped respectively
Head group (2010,2020), every group of collet group (2010) include work in coordination realize clamping two rows of collet copper sheet groups (201,
202) include, at least five another row folding head copper with same group of collet group (2010) at equal intervals per row folding head copper sheet group (201)
The collet copper sheet (200a) of each collet copper sheet (200b) corresponding setting, is separately positioned on two rows of collet copper in piece group (202)
A pair of of the collet copper sheet being correspondingly arranged in piece group (201,202) forms a cartridge unit.
2. breaker checking table fixture according to claim 1, it is characterised in that：Two rows of busbares of the breaker (6)
(611,612) are respectively by two groups of collet groups (2010,2020) at least three adjacent cartridge unit clampings or the open circuit
Two rows of busbares (611,612) of device (6) are respectively by least three non-conterminous cartridge units in two groups of collet groups (2010,2020)
Clamping.
3. breaker checking table fixture according to claim 1, it is characterised in that：Each phase of the breaker (6) is female
Each terminals of line are clamped by the adjacent cartridge unit of at least two in every group of collet group (2010).
4. breaker checking table fixture according to claim 1, it is characterised in that：Two groups of collet groups (2010,
2020) an at least row folding head copper sheet group (201,211) connects with two mounting plates that can be moved up and down (102a, 102b) respectively
It connects, being equipped on the mounting plate (102a, 102b) can drive installation plate (102a, 102b) movement two groups of collet group of realization
The front end cylinder (103,104) of (2010,2020) to two rows of busbares (611,612) clamping of breaker (6).
5. breaker checking table fixture according to claim 1, it is characterised in that：Every group of collet group (2010) packet
Include 22 pairs of collet copper sheets (200a, 200b) of corresponding setting.
6. breaker checking table fixture according to claim 1 or 2 or 3 or 4, it is characterised in that：Two groups of collets
The cartridge unit on one group of collet group (2010) in group (2010,2020) is connect with one end of test power supply (3) respectively, another
Cartridge unit in group collet group (2020) is connect with the other end of test power supply (3) respectively；Two groups of collet groups (2010,2020)
Upper corresponding a pair of of cartridge unit forms a cartridge unit group, at least one cartridge unit and test in each cartridge unit group
Power supply (3) junction also sets up on-off system (5).
7. breaker checking table fixture according to claim 6, it is characterised in that：On-off system (5) includes by collet list
Member drawn wire end setting static connection end (501), be mounted on rear end cylinder (503) on and with test power supply (3) phase
The dynamic connecting pin (502) of connection, the control terminal of the rear end cylinder (503) are connected with PLC.
8. breaker checking table fixture according to claim 6, it is characterised in that：The on-off system (5) include by
Test the supply terminals and the collet terminals drawn by cartridge unit that power supply (3) is drawn, the supply terminals and folder
It is connected by the electric-controlled switch controlled by PLC between head terminals.
9. breaker checking table fixture according to claim 1, it is characterised in that：Two groups of collet groups (2010,
2020) any one group of collet group is equipped with the height cylinder of distance between adjustable two groups of collet groups (2010,2020) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410249470.1A CN104049206B (en) | 2014-06-06 | 2014-06-06 | Breaker checking table fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410249470.1A CN104049206B (en) | 2014-06-06 | 2014-06-06 | Breaker checking table fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104049206A CN104049206A (en) | 2014-09-17 |
| CN104049206B true CN104049206B (en) | 2018-10-30 |
Family
ID=51502296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410249470.1A Active CN104049206B (en) | 2014-06-06 | 2014-06-06 | Breaker checking table fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104049206B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896282B (en) * | 2018-05-04 | 2019-12-24 | 山东大学 | Circuit breaker press-pull test bench and test method |
| CN113267654B (en) * | 2021-07-21 | 2021-09-24 | 广东电网有限责任公司佛山供电局 | Electrical test fixture for high-voltage circuit breaker |
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| CN1716493A (en) * | 2005-07-13 | 2006-01-04 | 吴桂初 | On-line intelligent checking table for low voltage breaker protective property |
| CN201130192Y (en) * | 2007-11-27 | 2008-10-08 | 天津市百利电气有限公司 | Fixed device for detecting breaker magnetic test |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004355938A (en) * | 2003-05-29 | 2004-12-16 | Fuji Electric Fa Components & Systems Co Ltd | Test device for earth leakage breaker |
| CN103323630B (en) * | 2013-06-25 | 2016-07-06 | 苏州速腾电子科技有限公司 | Radio-frequency filter test fixture |
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| CN1716493A (en) * | 2005-07-13 | 2006-01-04 | 吴桂初 | On-line intelligent checking table for low voltage breaker protective property |
| CN201130192Y (en) * | 2007-11-27 | 2008-10-08 | 天津市百利电气有限公司 | Fixed device for detecting breaker magnetic test |
| CN202033457U (en) * | 2011-03-24 | 2011-11-09 | 李小南 | Novel multifunctional ELE-MCCB (ester like ether-molded case circuit breaker) tester |
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| Publication number | Publication date |
|---|---|
| CN104049206A (en) | 2014-09-17 |
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Application publication date: 20140917 Assignee: Wenzhou Zhengtai Electrical Technology Co., Ltd Assignor: Zhejiang Chint Electrics Co.,Ltd. Contract record no.: X2020330000078 Denomination of invention: Fixture of circuit breaker calibration table Granted publication date: 20181030 License type: Common License Record date: 20201021 |
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