CN105259501B - A kind of high voltage direct current cut-offs experimental provision - Google Patents
A kind of high voltage direct current cut-offs experimental provision Download PDFInfo
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- CN105259501B CN105259501B CN201510735360.0A CN201510735360A CN105259501B CN 105259501 B CN105259501 B CN 105259501B CN 201510735360 A CN201510735360 A CN 201510735360A CN 105259501 B CN105259501 B CN 105259501B
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- contact
- moving arcing
- arcing contact
- experimental provision
- arc
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- 230000003068 static effect Effects 0.000 claims abstract description 24
- 238000010891 electric arc Methods 0.000 claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims description 11
- 238000004880 explosion Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 241000607479 Yersinia pestis Species 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 244000144985 peep Species 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Abstract
The invention discloses a kind of high voltage direct current to cut-off experimental provision, the experimental provision includes device noumenon and is vertically disposed with static arc contact, moving arcing contact in device noumenon, experimental provision further includes the operating mechanism for driving dynamic and static arcing contact to carry out divide-shut brake, application voltage end is connected separately on static arc contact, moving arcing contact, device noumenon lateral wall is equipped with the observation window for observing the static arc contact, the electric arc that moving arcing contact is generated in separating brake.High voltage direct current provided by the invention, which cut-offs experimental provision, can simulate the divide-shut brake process of moving arcing contact, static arc contact, by the parameter for changing the operating mechanism of driving moving arcing contact, it can change the movement velocity of moving arcing contact, the arc shape under different opening velocities can be observed by the observation window being set in device noumenon, the pests occurrence rule of electric arc is found out, the optimization design of construction of switch is further instructed.
Description
Technical field
The present invention relates to a kind of high voltage direct current to cut-off experimental provision.
Background technique
In HVDC transmission system, the conversion of certain methods of operation and the excision of failure need to open using direct current conversion
It closes, and DC current does not have zero crossing, so breaking direct current must force zero passage.But when DC current forces zero passage,
It to be released since direct current system stores huge energy, the energy released can generate overvoltage on circuit, cause
Arc reignition between fracture, so that causing failure of interruption.The direct current conversion used in the built HVDC converter substation in China is opened
Guan Jun is consisted of three parts: 1. be transformed as AC circuit breaker made of change-over switch；2. for the purpose of forming current zero-crossing point
Oscillation circuit；3. the dissipative cell for the purpose of absorbing the energy stored in DC loop.Oscillation circuit and dissipative cell cost
Higher, existing direct current change-over switch arrangement is complicated, and manufacture and maintenance cost are higher.Improve quickly opening for high-voltage direct current switch
Disconnected performance reduces manufacturing cost, is the developing direction of high-voltage switch gear.The reliability of cut-offfing of high-voltage switch gear is restricted by which factor,
It also needs to study.
Summary of the invention
The object of the present invention is to provide a kind of high voltage direct current to cut-off experimental provision, with the data of analyzing influence arc parameters,
It was found that the pests occurrence rule of electric arc, may further instruct the optimization design of construction of switch.
In order to achieve the goal above, the technical solution that high voltage direct current of the present invention cut-offs experimental provision is as follows: high voltage direct current is opened
Disconnected experimental provision, the contact assembly including device noumenon and in device noumenon, contact assembly include being vertically disposed with quiet arc
Contact, moving arcing contact, the experimental provision further include that the static arc contact, moving arcing contact is driven to carry out the actuating machine of divide-shut brake
Structure, described device ontology have the cavity for moving arcing contact movement, are connected separately on the static arc contact, moving arcing contact
Apply voltage end, so that static arc contact, moving arcing contact is formed closed circuit, device when closing a floodgate by applying voltage end application voltage
Outer body wall is equipped with the observation window for observing the static arc contact, the electric arc that moving arcing contact is generated in separating brake.
Device noumenon is equipped with the measuring device for acquiring the corresponding data of electric arc.
Measuring device includes measurement cover board and temperature sensor, gas pressure sensor, and measurement cover board is equipped with corresponding
Temperature sensor leading-out terminal and gas pressure sensor leading-out terminal.
Device noumenon is in the tubular vertically extended, is radially convexly equipped with measuring cylinder on this body sidewall of described device,
The measuring cylinder has the cavity of communication apparatus ontology, peace for placing the temperature sensor, gas pressure sensor
Space is filled, the measurement cover board is connected in the measuring cylinder.
Contact assembly is made of static arc contact, moving arcing contact.
Operating mechanism be motor driven operating mechanism, motor driven operating mechanism include servo motor and be located at servo motor
Transmission mechanism between moving arcing contact.
The axis of the output shaft of servo motor is vertical with the direction of motion of the moving arcing contact.
Explosion rupture disk is equipped in device noumenon between the static arc contact and moving arcing contact.
Beneficial effects of the present invention: high voltage direct current provided by the invention cut-offs experimental provision, can simulate moving arcing contact, quiet
The divide-shut brake process of arcing contact, the parameter of the operating mechanism by changing driving moving arcing contact, thus it is possible to vary the fortune of moving arcing contact
Dynamic speed, so that it may the arc shape under different opening velocities be observed by the observation window being set in device noumenon, find out electric arc
Pests occurrence rule, further instruct the optimization design of construction of switch.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that high voltage direct current of the present invention cut-offs experimental provision embodiment；
Fig. 2 is the structural schematic diagram of the device noumenon in Fig. 1；
Fig. 3 is the structural schematic diagram for the operating mechanism that high voltage direct current of the present invention is cut-off in experimental provision.
Specific embodiment
A kind of high voltage direct current of the present invention cut-offs the embodiment of experimental provision: as shown in Figure 1-3, high voltage direct current cut-offs experiment dress
The device noumenon 6 including bracket 5 and on bracket 5 is set, device noumenon 6 is in the tubular vertically extended, device noumenon 6
Interior to be equipped with contact assembly, contact assembly includes being vertically disposed with static arc contact 8, moving arcing contact 9, and device noumenon 6 has for dynamic arc
The cavity that contact 9 moves.This experimental provision further includes the motor driven behaviour for driving static arc contact 8, moving arcing contact 9 to carry out divide-shut brake
Motivation structure.Set in device noumenon there are two apply voltage end so that static arc contact, moving arcing contact close a floodgate when form closed circuit,
One is the application voltage end 1 for being located at the upper end of device noumenon, the other is being located at the application voltage on the side wall of device noumenon
End 3.6 lateral wall of device noumenon is equipped with the observation for observing static arc contact 8, the electric arc that moving arcing contact 9 is generated in separating brake
Window 2 is convexly equipped with peep hole above voltage end in applying in device noumenon 6, and the outer end of peep hole is equipped with cover board 14, cover board 14
Material use acrylic acid, light transmittance reaches 90% or more, is resistant to the instantaneous pressure generated in device noumenon when electric arc occurs
Impact.The form of high-speed camera shooting electric arc can be used.
The measurement for acquiring the corresponding data of electric arc is equipped in the opposite side for applying voltage end 3 in device noumenon 6
Device, measuring device include measurement cover board 13 and temperature sensor, gas pressure sensor, and measurement cover board 13 is equipped with corresponding
Temperature sensor leading-out terminal 11 and gas pressure sensor leading-out terminal 12.Measuring cylinder is radially convexly equipped on 6 side wall of device noumenon
10, measuring cylinder 10 have the cavity of communication apparatus ontology, the installation for placing temperature sensor, gas pressure sensor it is empty
Between, measurement cover board 13 is connected in measuring cylinder 10.
Operating mechanism be motor driven operating mechanism, motor driven operating mechanism include servo motor 4 and be located at servo electricity
Transmission mechanism between machine 4 and moving arcing contact.Transmission mechanism includes connecting lever 19, insulated pull rod 18, and insulated pull rod can be with action pneumatic
Cylinder moves up and down, and air cylinder includes cylinder body and piston 17.Spout 15 is connected on air cylinder 16.The axis of the output shaft of servo motor
Line is vertical with the direction of motion of moving arcing contact.In the present embodiment, why servo motor 4 is used to be used as power source, is to consider
It to common spring operating mechanism is used, is limited by spring mechanism own characteristic, cannot achieve and fracture is opened away from, divide-shut brake
The adjustment of speed, cannot the influence factor to arc voltage, electric current form comprehensively studied.It, can be with using servo motor
Adjust motor output shaft revolving speed and rotation angle, by transmission system realize to divide-shut brake speed and fracture open away from adjusting.
It is opened by changing away from arc temperature and form is changed with divide-shut brake speed, to obtain more numbers for influencing arc parameters
According to the structure for being conducive to the pests occurrence rule for finding electric arc and optimization switch designs.In other embodiments, breaker can also be used
In common spring operating mechanism as operating mechanism.
For the security consideration of test, explosion rupture disk 7 is equipped between static arc contact and moving arcing contact in device noumenon,
When gas pressure in device noumenon is excessive, explosion rupture disk preferentially bursts, the intrinsic pressure of release device.
In the present embodiment, by the way that measuring cylinder is arranged, so that corresponding sensor is easier for installation, it is also safer.
In other embodiments, the corresponding insert for being used to install sensor can also be set directly in device noumenon, or also will
Measuring device is arranged to box-like, and measuring device itself has an installation space for placing corresponding sensor, and fills in measurement
It sets and reserves corresponding sensor leading-out terminal, to be connect with extraneous data acquisition device.
In the present embodiment, contact assembly is made of static arc contact, moving arcing contact, simplifies fracture texture, reduce it is dynamic,
Quiet main contact cut-offs generation electric arc by dynamic and static arcing contact, and this reduces the quality of moving arcing contact moving parts, together
When reduce frictional force between dynamic and static main contact, the movement velocity of moving arcing contact component is improved to a certain extent, to mention
High divide-shut brake speed.In other embodiments, can also be used in breaker frequently with contact assembly, including it is moving contact, quiet
Contact.
Further, by increasing the length of connecting lever 19, air cylinder 16 and piston 17, the maximum for increasing contact is opened
Away from, namely increase the effective exercise distance of moving arcing contact component, be conducive to divide-shut brake speed and open away from adjustment.
Claims (5)
1. a kind of high voltage direct current cut-offs experimental provision, it is characterised in that: the contact including device noumenon and in device noumenon
Component, contact assembly include static arc contact setting up and down, moving arcing contact, and the experimental provision further includes that the quiet arc is driven to touch
Head, moving arcing contact carry out the operating mechanism of divide-shut brake, and described device ontology has the cavity for moving arcing contact movement, described
It is connected separately with application voltage end on static arc contact, moving arcing contact, makes static arc contact, dynamic arc by applying voltage end application voltage
Contact forms closed circuit when closing a floodgate, and the application voltage end is arranged in device noumenon, and device noumenon lateral wall is equipped with
For observing the observation window of the static arc contact, the electric arc that moving arcing contact is generated in separating brake, described device ontology, which is equipped with, to be used
In the measuring device of the corresponding data of acquisition electric arc, the measuring device includes measurement cover board and temperature sensor, gas pressure
Sensor, measurement cover board are equipped with corresponding temperature sensor leading-out terminal and gas pressure sensor leading-out terminal, described device sheet
Body is in the tubular vertically extended, is radially convexly equipped with measuring cylinder on this body sidewall of described device, the measuring cylinder has
The cavity of communication apparatus ontology, installation space for placing the temperature sensor, gas pressure sensor, the measurement
Cover board is connected in the measuring cylinder.
2. high voltage direct current according to claim 1 cut-offs experimental provision, it is characterised in that: the contact assembly is touched by quiet arc
Head, moving arcing contact composition.
3. high voltage direct current according to claim 1 cut-offs experimental provision, it is characterised in that: the operating mechanism is motor drive
Dynamic operating mechanism, motor driven operating mechanism includes servo motor and the driver between servo motor and moving arcing contact
Structure.
4. high voltage direct current according to claim 3 cut-offs experimental provision, it is characterised in that: the output shaft of the servo motor
Axis it is vertical with the direction of motion of the moving arcing contact.
5. high voltage direct current according to any one of claims 1 to 4 cut-offs experimental provision, it is characterised in that: described device
Explosion rupture disk is equipped on ontology between the static arc contact and moving arcing contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510735360.0A CN105259501B (en) | 2015-11-03 | 2015-11-03 | A kind of high voltage direct current cut-offs experimental provision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735360.0A CN105259501B (en) | 2015-11-03 | 2015-11-03 | A kind of high voltage direct current cut-offs experimental provision |
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| Publication Number | Publication Date |
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| CN105259501A CN105259501A (en) | 2016-01-20 |
| CN105259501B true CN105259501B (en) | 2019-07-05 |
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| CN201510735360.0A Active CN105259501B (en) | 2015-11-03 | 2015-11-03 | A kind of high voltage direct current cut-offs experimental provision |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510815A (en) * | 2015-11-27 | 2016-04-20 | 平高集团有限公司 | Fault arc test apparatus |
| CN106501710A (en) * | 2016-10-14 | 2017-03-15 | 南方电网科学研究院有限责任公司 | A kind of switching arc experimental provision suitable for multiple gases medium |
| CN106646218A (en) * | 2017-02-10 | 2017-05-10 | 云南电网有限责任公司电力科学研究院 | Device for simulating high-voltage circuit breakers and method for simulating and testing same |
| CN109031110B (en) * | 2018-08-07 | 2021-06-04 | 南方电网科学研究院有限责任公司 | Breaker breaking capacity evaluation method under harmonic condition |
| CN109143054A (en) * | 2018-08-27 | 2019-01-04 | 国网河南省电力公司电力科学研究院 | A kind of high-voltage circuit-breaker switching on-off imitative experimental appliance |
| CN111198152B (en) * | 2020-01-03 | 2023-03-31 | 平高集团有限公司 | Ablation resistance testing device and method for moving arc contact |
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| CN102520328A (en) * | 2011-12-26 | 2012-06-27 | 大连理工大学 | Vacuum arc observation apparatus capable of being operated with adjustable speed |
| CN104143462A (en) * | 2013-08-22 | 2014-11-12 | 国家电网公司 | High-voltage direct-current quick switch-on switch and switch fracture structure thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN87210501U (en) * | 1987-08-22 | 1988-06-01 | 锦州电业局 | High-tension switchgear testing apparatus |
| CN2182456Y (en) * | 1993-11-05 | 1994-11-09 | 崔正宪 | Excess voltage breaking device for lightning device |
| DE102004062266A1 (en) * | 2004-12-23 | 2006-07-13 | Siemens Ag | Method and device for safe operation of a switching device |
| CN102288906B (en) * | 2011-07-06 | 2013-05-08 | 天津市电力公司 | Circuit breaker switching on and off speed precise measurement system |
| JP2013131476A (en) * | 2011-12-22 | 2013-07-04 | Chugoku Electric Power Co Inc:The | Operation monitoring device and operation monitoring system for disconnecting switch |
| CN202712001U (en) * | 2012-05-14 | 2013-01-30 | 平高集团有限公司 | Switching arc generating and testing device |
| CN104064393B (en) * | 2014-06-05 | 2016-04-27 | 东莞市大展机械自动化科技有限公司 | A kind of magnesium eletrolysis on-load switch |
| CN205210268U (en) * | 2015-11-03 | 2016-05-04 | 平高集团有限公司 | High voltage direct current cut -offs experimental apparatus |
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Patent Citations (2)
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| CN102520328A (en) * | 2011-12-26 | 2012-06-27 | 大连理工大学 | Vacuum arc observation apparatus capable of being operated with adjustable speed |
| CN104143462A (en) * | 2013-08-22 | 2014-11-12 | 国家电网公司 | High-voltage direct-current quick switch-on switch and switch fracture structure thereof |
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| CN105259501A (en) | 2016-01-20 |
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