CN208060657U - A kind of test device suitable for capacitor testing - Google Patents
A kind of test device suitable for capacitor testing Download PDFInfo
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- CN208060657U CN208060657U CN201820396352.7U CN201820396352U CN208060657U CN 208060657 U CN208060657 U CN 208060657U CN 201820396352 U CN201820396352 U CN 201820396352U CN 208060657 U CN208060657 U CN 208060657U
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- insulation
- capacitor
- repetition
- test device
- turntable
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Abstract
The utility model discloses a kind of test devices suitable for capacitor testing, repetition rate switch module including pulse-generating circuit and for connecting electrode in circuit, the repetition rate switch module includes the insulation turntable of setting between two electrodes, setting is provided with through-hole with two electrode position corresponding positions on the insulation turntable, and the insulation turntable is rotated by motor drive.The repetition charge and discharge of multi-frequency can be realized by change insulation turntable hole count or DC motor speed for the utility model；Change working environment, improve repetition and operating voltage, it can be achieved that high current blow-out, is examined for the service life of high voltage capacitor.
Description
Technical field
The invention belongs to industrial applications, and in particular to be tested to the examination of capacitor high repetition frequency lower service life is suitable for
Device.
Background technology
Impulse capacitor and state pulse forming line are the main energy-storage travelling wave tubes of pulse power system.From E. L. in 1994
Neau propose Gao Zhongying solid pulse power technological concept after, solid state and volume it is small-sized be turned to Pulse Power Techniques development
New trend and be concerned, to the energy storage density of impulse capacitor and state pulse forming line, through-current capability and special occasions
Application more stringent requirements are proposed.Ceramic material is since with resistance to temperature shock, radiation hardness, to be easy to heat dissipation, long lifespan etc. excellent
It puts and becomes the preferred dielectric material for making impulse capacitor and state pulse forming line.In the research of solid-state MARX devices, need
Longevity test is carried out to the capacitor used in device and screening, the requirement to capacitor are：Capacitance：20nF；Charging voltage：20
~100kV；Discharge current：1~100kA；Charge and discharge repetition rate：≥50Hz；Service life：Repetition charge and discharge number 100,000 times to 100
Ten thousand times.Capacitor other technologies operation index is easier to examine, but the service life examines, especially such repetition rate service life examination
It always is a problem, needs to design a kind of economic, reliable and switch module easy to operate to carry out repetition rate test.
In recent years, under the promotion of high new equipment and physical study demand, Pulse Power Techniques receive significant attention, each master
It wants technology power to put into a large amount of manpower and materials and carries out correlative study work, achieve multinomial landmark technological progress,
Application field also obtains rapid expansion.Currently, two main trend are presented in the development of Pulse Power Techniques：On the one hand run to single,
The direction of high-peak power is developed.Large-scale pulse power supply can provide very high peak power to load, creation high power density,
The extreme environment of high-energy density, has pushed the extreme conditions physical study such as nuclear blast simulation, material property, such device to be usually
Single is run, such as the ZR devices in the U.S.；On the other hand develop towards the direction of high repetition frequency, high-average power.High new equipment
Development to system core component pulse power supply, more stringent requirements are proposed, i.e., miniaturization, modularization, high repetition frequency operation
And the long life.Commercial Application also requires pulse power supply to have higher repetitive frequency and high-average power, to obtain industry
The output demand of metaplasia production.Solid-state devices has many advantages, such as to rerun, and frequency is high, easy to maintain, service life is long, is to repeat
The main flow direction of frequency pulse power technology research field.Currently, high repetition frequency, high-average power solid pulse power source skill
Art research has become the hot spot of Pulse Power Techniques research field, is included in the multiple emphasis Country science and technology plans in the U.S..To pottery
When porcelain condenser is examined, repetition switch is crucial.Currently, common repetition switch has：1）Semiconductor switching component：Of high cost, work(
Rate capacity is small, especially poor to the ability to bear of the failures such as load short circuits；2）Air blowing arrester switch：It is inconvenient and safe
Property is poor；3）Thyratron：Power capacity is small, the service life under the conditions of high repetition frequency, higher-wattage is still difficult to meet million service life
Examine the requirement of experiment.It needs to design and a kind of meeting high voltage, high current, economic, the reliable and easy to operate weight of long-life
Frequency switchs.Look into suitable for the ceramic capacitor repetition service life examination pertinent literature to Patent data and find no it is related newly
Type rotary gap switch makes and the relevant patent information of application aspect.
Invention content
The purpose of the present invention is the need based on key research items such as solid-state Marx generators, high repetition pulse power systems
It asks, by system analysis and design, designs a kind of Novel rotary gap switch.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of test device suitable for capacitor testing, including pulse-generating circuit and for connecting electrode in circuit
Repetition rate switch module, the repetition rate switch module includes the insulation turntable of setting between two electrodes, described exhausted
Setting is provided with through-hole with two electrode position corresponding positions on edge turntable, and the insulation turntable is rotated by motor drive.
In the above-mentioned technical solutions, it is provided with several through-holes on the same circumference on the insulation turntable.
In the above-mentioned technical solutions, each through-hole is in the same size, and the spacing between two neighboring through-hole is consistent.
In the above-mentioned technical solutions, insulating disc is 50Hz insulation turntables.
In the above-mentioned technical solutions, in test：
When direct current generator rotates, ceaselessly break-make under through-hole effect of the interelectrode electric arc on insulation turntable, it is ensured that
Capacitor repeats charge and discharge with fixed frequency, realizes and is examined to capacitor life-span.
In the above-mentioned technical solutions, by change insulate turntable on hole count or DC motor speed a variety of frequencies can be realized
The repetition charge and discharge of rate.
In the above-mentioned technical solutions, same provided circumferentially about there are six through-hole in the insulating disc, direct current generator is with 500
Turn/min rotations, interelectrode electric arc break-make frequency reaches 50Hz, can ensure that capacitor repeats charge and discharge with 50Hz frequencies in this way.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
This repetition switch is stretched using the high-melting-point insulating materials incision electric arc of high-speed motion, by the movement of insulating materials
And breaking arc come realize the electric discharge of capacitor break-make, control, solve repetition 50 Hz even 100 Hz or more high-voltage pulses
The fast discharge capability of capacitor high current and service life appraisal problem.
The switching frequency stability is high, and reliability is high and easy to operate, economical and practical.Only pass through change insulation turntable hole count
Or multi-frequency can be realized in DC motor speed（>50 Hz）Repetition charge and discharge.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the test circuit figure of the present invention；
Fig. 2 is the structural schematic diagram of insulation turntable；
Wherein：1 is insulation turntable, and 2 be through-hole, and 3 be motor, and 4 be electrode.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
It is the test circuit figure of the present invention as shown in Fig. 1, it is consistent with conventional circuit, tested electricity is in series in circuit
Hold and the air switch between electrode is exactly changed to by other assemblies and two discharge electrodes, the main improved place of the present invention
Insulate turntable.
Being typically repeated frequency lifetime test must all have by repetition rate switch module, general components：1. semiconductor is opened
Component is closed, the design of this switch module, production, control technology difficulty are big, of high cost；2. air blowing arrester switch, this switch module
It is to lean on air-flow breaking arc, it is poor operates very inconvenient and safety.Therefore consider using insulating materials incision, cut out electric arc in fact
Existing repetition rate switch, finally need to solve is the charge and discharge repetition rate for realizing 50Hz.
By test of many times and optimization, the rotary switch of the present invention is designed.This rotary gap switchs, and principle is will to insulate
The regular breaking arc of material realizes the repetition charge and discharge of capacitor, this rotary gap switching frequency stability is high, reliably
Property is high and easy to operate, economical and practical.As shown in Fig. 2, this Novel rotary gap switch is by 50Hz special isolations turntable, direct current
Motor, electrode tip and other assemblies are constituted, and 50Hz special isolation turntables are 500 × 5 heavy insulation glass of Φ or ceramic disk,
Uniformly distributed 6 apertures on 450 circumference of Φ, when direct current generator is rotated with 500 turns/min, the electric arc break-make frequency between electrode tip reaches
To 50Hz, it can ensure that capacitor repeats charge and discharge with 50Hz frequencies in this way, realize and capacitor life-span is examined.
Only multi-frequency can be realized by change insulation turntable hole count or DC motor speed in this rotary gap switch
Repeat charge and discharge；Change working environment, improve repetition and operating voltage, it can be achieved that high current blow-out, for high voltage electricity
The service life of container examines.
Discharge waveform of the high-voltage pulse capacitor measured using rotary gap switch in repetition rate 50Hz, this device
Applied in the fast discharge capability of high-voltage pulse capacitor high current and service life examination, yield good result.In repetition rate
When 50 Hz work, million to high-voltage pulse capacitor under the conditions of 1.5 kA of operating current, 20 kV of operating voltage are completed
Secondary service life examination.
The invention is not limited in specific implementation modes above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (4)
1. a kind of test device suitable for capacitor testing, including pulse-generating circuit and the weight for connecting electrode in circuit
Complex frequency switch module, it is characterised in that the repetition rate switch module includes that the insulation of setting between two electrodes turns
Disk, on the insulation turntable setting two electrode position corresponding positions are provided with through-hole, the insulation turntable is driven by motor
It is rotated.
2. a kind of test device suitable for capacitor testing according to claim 1, it is characterised in that the insulation turns
Several through-holes are provided on disk on the same circumference.
3. a kind of test device suitable for capacitor testing according to claim 2, it is characterised in that each through-hole
It is in the same size, the spacing between two neighboring through-hole is consistent.
4. a kind of test device suitable for capacitor testing according to claim 1, it is characterised in that insulating disc is
50Hz insulation turntables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820396352.7U CN208060657U (en) | 2018-03-23 | 2018-03-23 | A kind of test device suitable for capacitor testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820396352.7U CN208060657U (en) | 2018-03-23 | 2018-03-23 | A kind of test device suitable for capacitor testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208060657U true CN208060657U (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820396352.7U Expired - Fee Related CN208060657U (en) | 2018-03-23 | 2018-03-23 | A kind of test device suitable for capacitor testing |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303627A (en) * | 2018-03-23 | 2018-07-20 | 中国工程物理研究院流体物理研究所 | A kind of test device suitable for capacitor testing |
-
2018
- 2018-03-23 CN CN201820396352.7U patent/CN208060657U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303627A (en) * | 2018-03-23 | 2018-07-20 | 中国工程物理研究院流体物理研究所 | A kind of test device suitable for capacitor testing |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 Termination date: 20210323 |
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| CF01 | Termination of patent right due to non-payment of annual fee |