CN106597175A - Low-voltage electric device reliability testing device and system - Google Patents
Low-voltage electric device reliability testing device and system Download PDFInfo
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- CN106597175A CN106597175A CN201611249245.3A CN201611249245A CN106597175A CN 106597175 A CN106597175 A CN 106597175A CN 201611249245 A CN201611249245 A CN 201611249245A CN 106597175 A CN106597175 A CN 106597175A
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- 238000012360 testing method Methods 0.000 title claims abstract description 85
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Classifications
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- 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
- G01R31/003—Environmental or reliability tests
-
- 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
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- Environmental & Geological Engineering (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a device and a system for testing the reliability of a low-voltage electric device, which are used for detecting the reliability of the low-voltage electric device under a rotating working condition. The reliability testing device for the low-voltage electric appliance is used for applying dynamic load to a low-voltage electric appliance test piece and comprises a support, a rotating shaft and an installation frame. The bracket is provided with a mounting hole with the axis parallel to the horizontal plane; the rotating shaft can be rotatably inserted into the mounting hole; the mounting frame is provided with a connecting end and a test piece fixing end which are opposite, the connecting end is fixed on the rotating shaft, and the test piece fixing end is far away from the rotating shaft; and the rotating device comprises a rotating part with a rotating axis along the vertical direction, and the mounting frame is fixed on the rotating part. The reliability testing device and system for the low-voltage electric device can simulate dynamic load of yaw and impeller rotation on the low-voltage electric device.
Description
Technical field
The invention belongs to Wind turbines electricity consumption device reliability test technical field, more particularly to low pressure under a kind of dynamic loading
Electrical part RTA reliability test assembly and system.
Background technology
In wind generator system, the frame for movement and electrical system in cabin or impeller is carried out to which away from ground
Maintenance/safeguard relatively difficult, and climbing pylon has certain danger for operator.Also, to electricity generation system
Maintenance/maintenance may need to shut down, shutdown can then reduce the production capacity of electricity generation system.Therefore, cabin or leaf should be ensured as far as possible
The reliability of each components and parts or link in frame for movement and electrical system in wheel, the reliability overall so as to improve electricity generation system
Property.
For some predictable bad conditions, preventive measure, such as critical component or system can be made in the design phase
Redundancy Design etc..However, the operating condition of wind generator system has its particularity, some are in the general machine of other field
Then it is possible that new problem when tool/electrical equipment is used in wind generator system, those skilled in the art should send out as far as possible
The factor that now system reliability may be impacted, and take measures to judge whether to need to take counter-measure.
The content of the invention
The embodiment of the present invention provides a kind of low-voltage electrical part RTA reliability test assembly and system, can detect under rotation operating mode
The reliability of low-voltage electrical part.
First aspect, there is provided a kind of low-voltage electrical part RTA reliability test assembly, for applying dynamic load to low-voltage electrical apparatus test specimen
Lotus, including support, rotating shaft and installing rack.Support is provided with diameter parallel in the installing hole of horizontal plane；Rotating shaft rotationally grafting
In installing hole；Installing rack has relative connection end and a test specimen fixing end, and rotating shaft is fixed in connection end, and test specimen fixing end is away from turning
Axle is arranged；Slewing equipment, including rotation axiss rotating part vertically, installing rack are fixed on rotating part.
In the first possible implementation, installing rack includes one or more spoke, and one end of spoke is connected to peace
Shelve, at least one spoke radially extending along rotating shaft.
With reference to above-mentioned possible implementation, in second possible implementation, many spokes circumferentially divide around the shaft
Cloth the radial radiation extension along rotating shaft.
With reference to above-mentioned possible implementation, in the third possible implementation, installing rack further includes bridge joint
Bar, bridging bar connect adjacent spoke.
With reference to above-mentioned possible implementation, in the 4th kind of possible implementation, spoke circumference around the shaft is uniform,
Bridging bar is connected to the end of adjacent spoke to form polygon/circular configuration.
With reference to above-mentioned possible implementation, in the 5th kind of possible implementation, spoke is double spoke, including the
One end of one spoke and the second spoke, the first spoke and the second spoke is connected in rotating shaft on the difference of same bus, another
End connection bridging bar.
With reference to above-mentioned possible implementation, in the 6th kind of possible implementation, the installing hole on support includes together
The first installing hole and the second installing hole that axle is arranged, rotating shaft two ends are plugged in the first installing hole and the second installing hole respectively.
With reference to above-mentioned possible implementation, in the 7th kind of possible implementation, the first end of rotating shaft arranges free
Chamber, cavity have the second opening of the first opening positioned at first end and the periphery positioned at rotating shaft.
Second aspect, there is provided low-voltage electrical part reliability test system, for testing low-voltage electrical apparatus test specimen under dynamic loading
Reliability, including test device, control device and driving means.Test device is low illustrated by any one in first aspect
Piezoelectric device RTA reliability test assembly, for installing low-voltage electrical part to be tested, low-voltage electrical part has execution circuit and control
Circuit processed；Control device is for sending test signal to control circuit, and receives the feedback signal of execution circuit；Driving means are extremely
The axis of rotation in test device can be driven less.
In the first possible implementation, control device includes PLC module, and PLC module includes input interface and defeated
Outgoing interface, output interface are used for the control circuit for connecting low-voltage electrical part to be tested, and input interface is used to connect low-voltage electrical apparatus
The execution circuit of part.
With reference to above-mentioned possible implementation, in second possible implementation, PLC module is fixed on rotating shaft or peace
Shelve.
With reference to above-mentioned possible implementation, in the third possible implementation, control device further includes meter
Calculation machine, computer are connected with PLC module communication by slip ring.
With reference to above-mentioned possible implementation, in the 4th kind of possible implementation, driving means at least include frequency conversion
The motor of device and drive shaft, rotating speed of the computer capacity by Frequency Converter Control motor.
Low-voltage electrical part RTA reliability test assembly and system that the present invention is provided, can be with low-voltage electrical parts such as busy relays
Reliability under horizontal rotation and vertically revolution complex conditions.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to making needed for the embodiment of the present invention
Accompanying drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
The structural representation of low-voltage electrical part RTA reliability test assemblies of the Fig. 1 to be provided according to one embodiment of the invention；
Fig. 2 is the structural representation of rotating shaft in Fig. 1；
The structural representation of installing racks of the Fig. 3 to be provided according to one alternative embodiment of the present invention；
The structural representation of low-voltage electrical part RTA reliability test assemblies of the Fig. 4 to be provided according to another embodiment of the present invention
Figure；
The structural representation of low-voltage electrical part reliability test systems of the Fig. 5 to be provided according to one embodiment of the invention.
Wherein：
1- reliability test systems, 10- converters, 20- motors, 30- test devices；
100- slewing equipments；
200- supports, 210- support plates, 220- support plates, 211- bearings；
300th, 300a- rotating shafts, the 310a- shaft shoulders, 320a- axle sleeves, 330- cavitys, 331- first are open, and 332- second is open；
400th, 400a, 40- installing rack, 410,420- spokes, 430,440- bridging bars, the first spokes of 410a-, 420a-
Two spokes, the first spokes of 430a-, the second spokes of 440a-, 450a- bridging bars；
500- slip rings；600- belt wheels；700- relays；800-PLC modules；900- computers.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment obtained under the premise of creative work is not made by member, belongs to the scope of protection of the invention.
In the following detailed description, it is proposed that many details, to provide complete understanding of the present invention.But
It is, it will be apparent to those skilled in the art that the present invention can be thin in some in not needing these details
Implement in the case of section.Below to the description of embodiment just for the sake of by illustrating the example of the present invention providing to the present invention
Be better understood from.The present invention is never limited to any concrete structure set forth below and configuration, but without departing from the present invention
Spirit on the premise of cover any modification of part, part and connected mode, replacement and improve.
Additionally, described feature, structure or characteristic can in any suitable manner with reference in one or more enforcements
In example.In the following description, there is provided many details are fully understood to embodiments of the invention so as to be given.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the application in detail.
The Operation Conditions of wind generator system are complex, and operation process is related to impeller rotation, driftage and blade and becomes oar
Deng action, above action may cause the vibration of each equipment or produce dynamic load(loading) to some equipment.For example, wind-power electricity generation
Vane change device in unit impeller includes motor and actuating device, typically has relay, catalyst in the control circuit of motor
Deng low-voltage electrical apparatus, this part electric elements is arranged in physical cabling in impeller and rotates with impeller.Touching in low-voltage electrical apparatus
Head is driven by armature more, and armature is driven by the electromagnetic force and/or spring force of solenoid.Low-voltage electrical part when impeller rotates
The key element such as armature or contact can be subject to the dynamic loadings such as centrifugal force, may be to the magnetic force and spring force in low-voltage electrical part
Interfere.The present invention provide low-voltage electrical part RTA reliability test assembly and system, can wind-driven generator simulation group impeller
Operating mode is rotated, and the stability to the contact closure/opening of the low-voltage electrical part under the operating mode is tested.
It is the low-voltage electrical part RTA reliability test assembly that provided according to one embodiment of the invention with reference to Fig. 1 and Fig. 2, Fig. 1
Structural representation, Fig. 2 be Fig. 1 in rotating shaft 300 structural representation.In the present embodiment, low-voltage electrical part reliability testing dress
Put for applying dynamic loading to low-voltage electrical apparatus test specimen, which includes slewing equipment 100, support 200, rotating shaft 300 and installing rack 400.
Slewing equipment 100 includes rotatable rotating part, and support 200 is fixed on rotating part.Rotating shaft 300 is rotatably connected to support
On 200, installing rack 400 is fixed in rotating shaft 300 and can rotate with rotating shaft 300.During use, can on installing rack 400 away from turn
The position of axle 300 is installed by relay 700 and PLC module 800；Belt wheel 600 is installed in one end of rotating shaft 300, is driven by V belt translation
Dynamic rotating shaft 300 is rotated；Slip ring 500 is installed in the other end of rotating shaft 300, the signal of telecommunication in relay 700 and PLC module 800 is realized
Transmission.
Slewing equipment 100 has base and rotating part, and rotating part is disc-shaped structure, and its rotation axis vertically sets
Put, and can be around the rotation axiss of itself relative to base rotation.Motor and gear transmission structure are set in base, to be driven back to
Transfer part rotates.
Support 200 includes that base plate, support plate 210 and support plate 220, support plate 210 and support plate 220 be arranged in parallel, has therebetween
There is preset distance.It is provided with an installing hole at the top of support plate 210 and support plate 220, the axis collinear of two installing holes and parallel
In horizontal plane.Bearing can be installed in installing hole.Support 200 is fixed on the rotating part of slewing equipment 100, can be incited somebody to action by bolt
The base plate of support 200 is fastened to rotating part, during use rotating part can driving arm 200 turn round.
Rotating shaft 300 is Step Shaft, and the second end of rotating shaft 300 is provided with keyway, for installing the drive of the rotation of drive shaft 300
Moving part；The first end of rotating shaft 300 is provided with cavity 330, and cavity 330 is axially extending rotating shaft 300, with the first opening 331
With the second opening 332, wherein the first opening 331 is located at the end face of the first end of rotating shaft, the second opening 332 is located at rotating shaft 300
Periphery.During use, rotating shaft 300 is plugged in the dead eye of two bearings 211 of support 200 by its two ends.Also, rotating shaft
300 the second end forms cantilever beam by stretching out in bearing 211, and the end can connect belt wheel 600 and be turned with being driven by tape handler
Axle 300 is rotated；First end (arranging one end of cavity 330) can be connected with slip ring 500, and the wiring of slip ring 500 can pass through cavity
330 arrange and extend on installing rack 400, and wiring can be avoided interference to occur in turning course, kinks in rotating shaft 300, it is ensured that
The stable operation of test.
Installing rack 400 has relative connection end and test specimen fixing end, and connection end is fixed in rotating shaft 300, and test specimen is fixed
End is arranged away from rotating shaft 300.In the present embodiment, installing rack 400 is by 490, eight spokes of connection ring and the bridge joint of multiple direct rod shapes
Bar is connected and composed.Connection ring 490 has ring body and centre bore, and in eight spokes, one end of every spoke is both secured to connection ring
In 490 ring body, the other end is radially extended along ring body, and eight spokes are evenly distributed around ring body center, is formed radial
Structure.Many bridging bars include eight longer bridging bars, are connected to the end of spoke adjacent two-by-two so that install
Frame 400 forms octagonal disk-like structure.In addition, many bridging bars also include eight shorter bridging bars, parallel to longer
Bridging bar is connected to eight adjacent two-by-two spokes one by one.In the present embodiment, the connection ring 490 of installing rack 400 is connection end, is led to
The centre bore for crossing connection ring 490 is may connect in rotating shaft 300.Edge (the spoke away from connection ring 490 of installing rack 400
End and bridging bar) for test specimen fixing end.Illustrate by taking spoke 410, spoke 420 and bridging bar 430 as an example, spoke 410, spoke 420
With 430 triangle framework of bridging bar, relay mounting structure can be set on bridging bar 430, for install it is to be tested after
Electrical equipment.Relay when bridging bar 430 is rotated with rotating shaft 300 away from rotating shaft 300, therefore installing rack 400 on bridging bar 430
It is obtained in that larger centrifugal force.PLC module 800 is securable on spoke 420 as control device, its apart from center of rotation compared with
Closely, the rotary inertia of 400 entirety of installing rack can be made less.
Installing rack 400 is connected by spoke and bridging bar and is formed, and total quality is lighter, and three-legged structure is relatively consolidated, and is conducive to
Power needed for the steady revolution and reduction revolution of installing rack 400.And multiple spokes and bridging bar structure are caused on installing rack 400
Can install simultaneously it is multiple treat electricity measurer test specimen, be easy to while testing.
In an alternative embodiment, the quantity of spoke can be four, i.e., only retain spoke in the installing rack 400 shown in Fig. 1
Bar 410, spoke 420 and the two with regard to 490 centrosymmetric two spokes of connection ring.The structure can mitigate installing rack 400
Weight dynamic balancing when keeping which to rotate.
In an alternative embodiment, the quantity of spoke can also be two, i.e., only retain in the installing rack 400 shown in Fig. 1
Spoke 410 and spoke 420.The structure can further mitigate the weight of installing rack 400.
In an alternative embodiment, the quantity of spoke can also be two, refer to Fig. 3, and Fig. 3 is can according to one of the invention
The structural representation of the installing rack 40 of embodiment offer is provided.Installing rack 40 includes connection ring 41, disc 42 and disc 43.Can at this
In selecting embodiment, two spokes are deformed into the disc of triangle.Disc 42 and disc 43 are shape identical triangle, the two
One jiao be connected in connection ring 41, and be symmetrically distributed with regard to connection ring 41.Disc 42 and disc 43 can be arranged
The mounting structures such as installing hole, for installing electrical part to be tested.Certainly, the shape of disc 42 and disc 43 is not limited to triangle
Shape, for example, in another alternative embodiment, disc 42 and disc 43 are shaped as rectangle.The quantity of disc (spoke) is not yet
It is limited to two, for example, in another alternative embodiment, the quantity of disc (spoke) is one, i.e., only retain disc 42 or disc 43
One of.
In an alternative embodiment, in installing rack 400, the shape of bridging bar can also be arc, and cause installing rack 400
For discoid.
In an alternative embodiment, installing rack 400 can also be the disc-shaped structure of entity plate face.In another optional enforcement
In example, installing rack 400 can also be the shallow barrel-like structure with periphery.
The structural representation of low-voltage electrical part RTA reliability test assemblies of the Fig. 4 to be provided according to another embodiment of the present invention
Figure.Low-voltage electrical part RTA reliability test assembly includes the structures such as support 200, rotating shaft 300a and installing rack 400a.In the present embodiment
There is essentially identical configuration with the low-voltage electrical part RTA reliability test assembly in previous embodiment, something in common is no longer gone to live in the household of one's in-laws on getting married herein
State, only difference is illustrated.
Relative to rotating shaft 300, shaft shoulder 310a and axle sleeve 320a is further provided with rotating shaft 300a, for the peace that is connected
Shelve 400a.
Installing rack 400a includes multiple spokes and bridging bar.Spoke in installing rack 400a is double spoke, for example, is installed
The first spoke 410a, the second spoke 420a are provided with frame 400a, the one end of the two is connected to shaft shoulder 310a and axle sleeve
On 320a, and corresponding to the same bus of rotating shaft 300a.The first spoke 430a and the second spoke are provided with installing rack 400a
Bar 440a, the one end of the two are connected on shaft shoulder 310a and axle sleeve 320a, and corresponding to another bus of rotating shaft 300a.
One end of first spoke and the second spoke is connected on the difference on rotating shaft 300a, and the other end is connected on bridging bar 450a
One end, so as to form roughly triangular structure with rotating shaft 300a.This kind of triangular structure causes installing rack 400a in axial direction
Rigidity on direction further increases, and can mitigate the deformation or vibrations axially occurred in rotating shaft when installing rack 400a is rotated.
The embodiment of the present invention additionally provides a kind of low-voltage electrical part reliability test system, for testing low pressure under dynamic loading
The reliability of electrical equipment test specimen.With reference to Fig. 5, Fig. 5 is the low-voltage electrical part reliability testing that provided according to one embodiment of the invention
The structural representation of system.Reliability test system 1 includes test device 30, control device and driving means, for test after
Reliability of the electrical equipment 700 under rotation operating mode.In the present embodiment, test device 30 is illustrated in aforementioned any one embodiment
Low-voltage electrical part RTA reliability test assembly, for installing low-voltage electrical part (such as relay 700) to be tested and PLC module
(programmable logic controller (PLC)).Control device includes computer 900 and PLC module 800；Driving means include converter 10 and electricity
Machine 20.
Test device 30 is used to install low-voltage electrical part to be tested and PLC module 800, in the present embodiment, low-voltage electrical apparatus
For relay 700, the relay includes contact circuit and electromagnetic coil circuit, and contact circuit is execution circuit, solenoid electricity
Road is control circuit.For normally open contact and its coil, when no power in coil circuit, contact circuit is off；
When the coil is energized, contact circuit is in closure state.For normally closed interlock and its coil, when no power in coil circuit,
Contact circuit is in closure state；When the coil is energized, contact circuit is off.
In control device, PLC module 800 includes input interface and output interface, and output interface connects low tension to be tested
The control circuit of device, input interface connect the execution circuit of low-voltage electrical part.Also have between PLC module 800 and computer 900
Communication connection, can be real-time on-line joining process.Computer 900 can pass through connection cables connection slip ring 500, then by slip ring
500 connection PLC modules 800.Computer 900 can by slip ring 500 to PLC module 800 send real-time test signal and connect and
The feedback signal of PLC module 800 is received in storage.PLC module 800 can send the test signal of computer 900 to be tested low
Piezoelectricity device, and receive by the feedback signal of low-voltage electrical apparatus to be tested.PLC module 800 is fixed on the rotating shaft or installing rack, energy
It is enough to reduce by the wiring drawn in test device 30, so as to the channel quantity of the slip ring needed for reducing.In an alternative embodiment, also
Computer 900 can be not provided with, PLC module 800 itself has a memory element, the control program that can prestore is to the number that obtains in test
According to being stored, control function can be equally performed.In other alternative embodiments, can be with single-chip microcomputer replacement PLC module
800 perform control function.
Driving means include converter 10 and motor 20, and motor 20 is rotated for drive shaft 300.Converter 10 can be by counting
Calculation machine 900 controls frequency, so as to carry out frequency-adjustable speed-adjustable to motor 20.Can be converted rotating shaft in the system according to impeller actual speed
300 Rational Rotation Speed, it is ensured that low-voltage electrical part to be tested is with the linear velocity suitable with actual condition.
During test, control the rotating speed of 10 regulation motor 20 of converter first by computer 900, pacify in making test device 30
The rotating speed shelved reaches predetermined value.Test signal is sent to PLC module 800 by computer 900 again, such as obtains relay coil
The signal of electricity；Simultaneous computer 900 receives the feedback signal that PLC module 800 is obtained, i.e., corresponding in contact circuit in relay
" on "/"off" signal.When the contact of relay is to make relay for the test signal that normally open contact and PLC module 800 send
When device coil obtains electric signal, feedback signal should be stable " on " signal, if occurred in feedback signal in test process
The signal of disconnection, then show that the performance of the relay under the operating mode is unreliable.
In an alternative embodiment, while making slewing equipment 100 be in rotary state so that at low-voltage electrical part to be tested
In horizontal rotation and vertically under the complex conditions of revolution, can wheel rotation and partially in wind-driven generator simulation group running simultaneously
The operating mode of boat.
Low-voltage electrical part RTA reliability test assembly and system that the present invention is provided, can be with low-voltage electrical parts such as busy relays
Reliability under horizontal rotation and vertically revolution complex conditions.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced
Change, these modifications or replacement should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with right
The protection domain of requirement is defined.
Claims (13)
1. a kind of low-voltage electrical part RTA reliability test assembly, for applying dynamic loading to low-voltage electrical apparatus test specimen, it is characterised in that bag
Include：
Support (200), is provided with diameter parallel in the installing hole of horizontal plane；
Rotating shaft (300,300a), is rotationally plugged in the installing hole；
Installing rack (400,400a), with relative connection end and test specimen fixing end, the rotating shaft is fixed in the connection end
(300,300a), the test specimen fixing end are arranged away from the rotating shaft (300,300a)；And
Slewing equipment (100), including rotation axiss rotating part vertically, the installing rack (400,400a) is fixed on institute
State rotating part.
2. low-voltage electrical part RTA reliability test assembly according to claim 1, it is characterised in that the installing rack (400,
400a) including one or more spoke, one end of the spoke is connected to the installing rack (400,400a), and the spoke is along institute
State radially extending for rotating shaft (300,300a).
3. low-voltage electrical part RTA reliability test assembly according to claim 2, it is characterised in that many spokes are around institute
State that rotating shaft (300,300a) is circumferentially distributed and radial radiation of along the rotating shaft (300,300a) extends.
4. the low-voltage electrical part RTA reliability test assembly according to Claims 2 or 3, it is characterised in that the installing rack
(400,400a) further include bridging bar, and the bridging bar connects the adjacent spoke.
5. low-voltage electrical part RTA reliability test assembly according to claim 4, it is characterised in that the spoke is around described turn
Axle (300,300a) it is circumferential uniform, the bridging bar is connected to the end of the adjacent spoke to form polygon/circle
Structure.
6. low-voltage electrical part RTA reliability test assembly according to claim 4, it is characterised in that the spoke is double spoke
One end of bar, including the first spoke and the second spoke, first spoke and second spoke be connected to the rotating shaft (300,
On 300a) on the difference of same bus, the other end connects the bridging bar.
7. low-voltage electrical part RTA reliability test assembly according to claim 1, it is characterised in that on the support (200)
Installing hole include the first installing hole being coaxially disposed and the second installing hole, the rotating shaft (300,300a) two ends are plugged in respectively
First installing hole and second installing hole.
8. low-voltage electrical part RTA reliability test assembly according to claim 1, it is characterised in that the rotating shaft (300,
First end 300a) is provided with cavity (330), and the cavity (330) is with the first opening (331) positioned at first end and is located at
Second opening (332) of the periphery of the rotating shaft (300,300a).
9. a kind of low-voltage electrical part reliability test system, it is characterised in that for testing low-voltage electrical apparatus test specimen under dynamic loading
Reliability, including：
Test device, the test device are the low-voltage electrical part reliability testing dress in claim 1-8 described in any one
Put, for installing low-voltage electrical part to be tested, the low-voltage electrical part has execution circuit and control circuit；
Control device, for sending test signal to the control circuit, and receives the feedback signal of the execution circuit；And
Driving means, can at least drive rotating shaft in the test device (300,300a) to rotate.
10. low-voltage electrical part reliability test system according to claim 9, it is characterised in that the control device bag
Include PLC module, the PLC module includes input interface and output interface, the output interface is used to connecting to be tested described
The control circuit of low-voltage electrical part, the input interface are used for the execution circuit for connecting the low-voltage electrical part.
11. low-voltage electrical part reliability test systems according to claim 10, it is characterised in that the PLC module is solid
On the rotating shaft (300,300a) or the installing rack (400,400a).
12. low-voltage electrical part reliability test systems according to claim 10, it is characterised in that the control device enters
One step includes computer, and the computer is connected with PLC module communication by slip ring (500).
13. low-voltage electrical part reliability test systems according to claim 12, it is characterised in that the driving means are extremely
Include converter less and drive the motor of the rotating shaft (300,300a), the computer capacity is by described in the Frequency Converter Control
The rotating speed of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249245.3A CN106597175A (en) | 2016-12-29 | 2016-12-29 | Low-voltage electric device reliability testing device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249245.3A CN106597175A (en) | 2016-12-29 | 2016-12-29 | Low-voltage electric device reliability testing device and system |
Publications (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4958653B2 (en) * | 2007-06-21 | 2012-06-20 | 三菱電機株式会社 | Inverter test equipment |
| CN204177931U (en) * | 2014-09-10 | 2015-02-25 | 珠海格力电器股份有限公司 | Servo-driver vibration suppression function test system |
| CN204855157U (en) * | 2015-08-28 | 2015-12-09 | 国电联合动力技术(连云港)有限公司 | Wind generating set main shaft system test platform |
| CN205003229U (en) * | 2015-09-24 | 2016-01-27 | 北京万源工业有限公司 | Wind generating set overspeed protection device automatic testing platform |
| CN105784306A (en) * | 2016-03-22 | 2016-07-20 | 天津航天瑞莱科技有限公司苏州分公司 | Fuel tank shake and vibration test system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4958653B2 (en) * | 2007-06-21 | 2012-06-20 | 三菱電機株式会社 | Inverter test equipment |
| CN204177931U (en) * | 2014-09-10 | 2015-02-25 | 珠海格力电器股份有限公司 | Servo-driver vibration suppression function test system |
| CN204855157U (en) * | 2015-08-28 | 2015-12-09 | 国电联合动力技术(连云港)有限公司 | Wind generating set main shaft system test platform |
| CN205003229U (en) * | 2015-09-24 | 2016-01-27 | 北京万源工业有限公司 | Wind generating set overspeed protection device automatic testing platform |
| CN105784306A (en) * | 2016-03-22 | 2016-07-20 | 天津航天瑞莱科技有限公司苏州分公司 | Fuel tank shake and vibration test system |
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