CN208092185U - Shelf depreciation reaction signal detecting system under a kind of surge voltage - Google Patents
Shelf depreciation reaction signal detecting system under a kind of surge voltage Download PDFInfo
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- CN208092185U CN208092185U CN201820642500.9U CN201820642500U CN208092185U CN 208092185 U CN208092185 U CN 208092185U CN 201820642500 U CN201820642500 U CN 201820642500U CN 208092185 U CN208092185 U CN 208092185U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 238000002474 experimental method Methods 0.000 claims abstract description 28
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 229910052582 BN Inorganic materials 0.000 claims description 8
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 8
- 239000002135 nanosheet Substances 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
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- 238000012360 testing method Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000036413 temperature sense Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model embodiment provides shelf depreciation reaction signal detecting system under a kind of surge voltage, including experiment cavity, closed cavity, display module and surge voltage module, experiment inside cavity accommodating electric discharge device using hanging by the way of；The experiment cavity is placed in wherein by closed cavity, and optical signal detecting unit, thermal signal detection unit and electrical signal detection unit are equipped in the closed cavity；Display module is used to receive signal and the display of the optical signal detecting unit, thermal signal detection unit and electrical signal detection unit；Surge voltage module for generating surge voltage, and is exported to the electric discharge device of the experiment inside cavity.Shelf depreciation reaction signal detecting system under surge voltage provided by the utility model, by test cavity and closed cavity structure design, can simultaneously detection light, heat and electric signal, and can ensure detection precision.
Description
Technical field
The utility model is related to detection technique fields, more particularly to shelf depreciation reaction signal under a kind of surge voltage
Detecting system.
Background technology
Local discharge signal detection method is insulated by development for many years using impulse voltage test under alternating voltage
The diagnosis of failure is always research hotspot both domestic and external, more to Recent study from the Electric Method (show and hinder Waveform Method) of early stage
Transfer function method, it is desirable to the integral status not only to be insulated by impulse voltage test, it is also desirable to know insulation whether
There are local defects.
Under power-frequency voltage effect in the measurement of partial discharge based on pulse current method, since source electric voltage frequency is low, Bu Hui
Cause prodigious displacement current and interference on test product so that local discharge signal is easy to extract.However, surge voltage itself rises
Time is very short, generally Microsecond grade, sometimes even up to nanosecond, this makes the extraction of local discharge signal under surge voltage
Damage of the big displacement electric current for overcoming surge voltage to generate to sensor and detecting system is needed, it is also contemplated that under high current signal
The accurate acquisition problem of weak partial discharge pulse's signal, thus caused local discharge signal detection become particularly complicated.
But current existing measurement method, the performance of electromagnetic interference is relatively low during Resistance Test, the photo-thermal telecommunications of extraction
It number is interfered, and poor for the reaction sensitivity of Photothermal Signals, to currently, for testing inspection local discharge signal
It is qualitative analysis to be carried out to optical signal, thermal signal and electric signal, but be limited to the structure of signal detection system, accuracy of detection
It is relatively low.
Utility model content
In view of techniques discussed above problem, it is anti-that the utility model embodiment provides shelf depreciation under a kind of surge voltage
Induction signal detecting system solves the low technical problem of the precision of existing testing inspection impulsive discharge.
Shelf depreciation reaction signal detecting system under a kind of surge voltage, including：
Cavity is tested, there is closed cavity body structure and fills insulating gas, and the experiment in experiment inside cavity
Cavity houses electric discharge device using transparent and insulation material manufacture, in the experiment inside cavity by the way of hanging；
The experiment cavity is placed in wherein by closed cavity, and the closed cavity is manufactured using insulating materials,
Equipped with optical signal inspection mutual indepedent and spaced, that the electric discharge device discharge condition can be detected in the closed cavity
Survey unit, thermal signal detection unit and electrical signal detection unit；
Display module, for receiving the optical signal detecting unit, thermal signal detection unit and electrical signal detection unit
Signal is simultaneously shown；
Surge voltage module for generating surge voltage, and is exported to the electric discharge device of the experiment inside cavity.
Selectively, the electric discharge device is needle plate electrode.
Selectively, the optical signal detecting unit includes photomultiplier, and the photomultiplier is just corresponding to the examination
Cavity is tested, and/or, the photomultiplier is arranged in a cylindrical spaces of the closed cavity.
Selectively, the thermal signal detection unit include be set to it is described experiment cavity inner wall boron nitride nanosheet,
Be set to it is described experiment chamber outer wall thermistor casing and thermal resistance sensor, the boron nitride nanosheet with it is described
Thermistor casing connects, and the thermistor casing is connect by conducting wire with the thermal resistance sensor.
Selectively, the electrical signal detection unit includes current transformer.
Selectively, the display module includes oscillograph.
Selectively, the thermal signal detection unit is connect by first filter with the display module, and/or, institute
Electrical signal detection unit is stated to connect with the display module by second filter.
Selectively, the surge voltage module include charging trigger device, Marx devices, the charging trigger device and
The Marx devices connection, the output end of the Marx devices are electrically connected with the electric discharge device.
Selectively, the surge voltage module further includes divider.
Selectively, the insulating gas is SF6.
Shelf depreciation reaction signal detecting system under surge voltage provided by the utility model, by testing cavity and closing
The structure design of cavity, can simultaneously detection light, heat and electric signal, and can ensure detection precision.
Description of the drawings
This practicality may be better understood from the description below in conjunction with the accompanying drawings to specific embodiment of the present utility model
It is novel, wherein：
By reading referring to the drawings to being described in detail made by non-limiting embodiment, other spies of the utility model
Sign, objects and advantages will become more apparent upon, wherein same or analogous reference numeral indicates same or analogous feature.
Fig. 1 is the whole knot of shelf depreciation reaction signal detecting system under the surge voltage that the utility model embodiment provides
Structure schematic diagram.
In figure：
10, cavity is tested；11, electric discharge device；
20, closed cavity；
30, display module；
40, surge voltage module；41, charge trigger device；42, Marx devices；43, divider；
50, optical signal detecting unit；
60, thermal signal detection unit；61, boron nitride nanosheet；62, thermistor casing；63, thermal resistance sensor；
70, electrical signal detection unit；
81, first filter；82, second filter.
Specific implementation mode
The feature and exemplary embodiment of the various aspects of the utility model is described more fully below.It is retouched in detail in following
In stating, it is proposed that many details, in order to provide the comprehensive understanding to the utility model.But for people in the art
It will be apparent that the utility model can be implemented in the case of some details in not needing these details for member.
Below the description of embodiment is used for the purpose of providing to the more preferable of the utility model by showing the example of the utility model
Understanding.The utility model is never limited to any concrete configuration set forth below and algorithm, but new not departing from this practicality
Any modification, replacement and the improvement of element, component and algorithm are covered under the premise of the spirit of type.In the following description, do not have
Well known structure and technology are shown, it is unnecessary fuzzy to avoid causing the utility model.
Example embodiment is described referring now to ground, example embodiment can be implemented in a variety of forms, and should not be by
It is considered limited to embodiment set forth herein；On the contrary, these embodiments are provided so that the utility model more comprehensively and completely,
And the design of example embodiment is comprehensively communicated to those skilled in the art.
In addition, described feature, structure or characteristic can be incorporated in one or more implementations in any suitable manner
In example.In the following description, many details are provided to fully understand the embodiments of the present invention to provide.So
And it will be appreciated by persons skilled in the art that the technical solution of the utility model can be put into practice without in the specific detail
It is one or more, or other methods, constituent element, material may be used etc..In other cases, it is not shown in detail or describes public affairs
Know structure, material or operation to avoid the major technique intention of fuzzy the utility model.
As shown in Figure 1, the utility model is shelf depreciation reaction signal detecting system under a kind of surge voltage of strength offer,
Including experiment cavity 10, closed cavity 20, display module 30, surge voltage module 40, wherein：
Test that cavity 10 has closed cavity body structure and filling insulating gas (such as can be with inside experiment cavity 10
For SF6.), and the experiment cavity 10 is used hanging using transparent and insulation material manufacture inside the experiment cavity 10
Mode house electric discharge device 11；
The experiment cavity 10 is placed in wherein by closed cavity 20, and the closed cavity 20 uses insulating materials system
Make, be equipped in the closed cavity 20 it is mutual indepedent and spaced, 11 discharge condition of the electric discharge device can be detected
Optical signal detecting unit 50, thermal signal detection unit 60 and electrical signal detection unit 70；
Display module 30 is for receiving the optical signal detecting unit 50, thermal signal detection unit 60 and electrical signal detection list
Member 70 signal and display；
Surge voltage module 40 is exported for generating surge voltage to the electric discharge device inside the experiment cavity 10
11。
The closed cavity 20 use Pyrex shell, the optical signal generated when insulator is breakdown, electric signal and
Thermal signal is captured and is transmitted to signal detection system in time, adds closed cavity so that external disturbance is isolated.
The electric discharge device 11 is needle plate electrode.
The optical signal detecting unit 50 includes photomultiplier, and the photomultiplier is just corresponding to the experiment cavity
10, and/or, the photomultiplier is arranged in a cylindrical spaces of the closed cavity 20.Photomultiplier is for micro-
Low light signals capturing ability is strong, temperature sense excellent, has very big measurement range, and power consumption is low, measures accurate
Degree is high, protects detecting system not damaged by pulse, can be widely applied to local discharge signal detection technique research.
The thermal signal detection unit 60 includes the boron nitride nanosheet 61 for being set to experiment 10 inner wall of cavity, sets
It is placed in the thermistor casing 62 and thermal resistance sensor 63 of experiment 10 outer wall of cavity, the boron nitride nanosheet 61
It being connect with the thermistor casing 62, the thermistor casing 62 is connect by conducting wire with the thermal resistance sensor 63,
Thermal resistance sensor 63 measures the SF6 gas temperatures under arcing and corona high temperature in local discharge process.By being full of SF6 insulation gas
The closed experiment cavity 10 of body generates discharge effect after being punctured by high-voltage pulse, and boron nitride nanosheet 61 is sealed in test cavity
Thermal signal is transmitted to signal detection system by internal wall, external thermistor casing 62.
The electrical signal detection unit 70 includes current transformer, generally use iron core line ring type low power current mutual inductance
Device, for acquiring local pulse signal.
The display module 30 includes oscillograph.
The thermal signal detection unit 60 is connect by first filter 81 with the display module 30, and/or, it is described
Electrical signal detection unit 70 is connect by second filter 82 with the display module 30.Light, electricity, the heat letter of shelf depreciation generation
Oscillograph is transmitted to by interference signal is filtered by high-pass filter after number collected, record light during shelf depreciation, electricity,
Thermal signal.
The surge voltage module 40 include charging trigger device 41, Marx devices 42, the charging trigger device 41 and
The Marx devices 42 connect, and the output end of the Marx devices 42 is electrically connected with the electric discharge device 11.
The surge voltage module 40 further includes divider 43, and a branch of divider is connect with the oscillograph.
Those skilled in the art will be understood that above-described embodiment is illustrative and not restrictive.In different embodiments
The different technologies feature of middle appearance can be combined, to obtain advantageous effect.Those skilled in the art research specification and
On the basis of claims, the embodiment of other variations of revealed embodiment is will be understood that and realized.In claim
In book, term " comprising " is not precluded from other devices or steps；Indefinite article "one" be not excluded for it is multiple；Term " first ", " the
Two " for indicating title not for any specific sequence of expression.
Claims (10)
1. shelf depreciation reaction signal detecting system under a kind of surge voltage, which is characterized in that including：
Cavity (10) is tested, there is closed cavity body structure and fills insulating gas inside experiment cavity (10), and should
Cavity (10) is tested using transparent and insulation material manufacture, is housed by the way of hanging in the experiment cavity (10) inside
Electric discharge device (11)；
The experiment cavity (10) is placed in wherein by closed cavity (20), and the closed cavity (20) uses insulation material
Material manufacture, be equipped in the closed cavity (20) it is mutual indepedent and spaced, the electric discharge device (11) can be detected
Optical signal detecting unit (50), thermal signal detection unit (60) and the electrical signal detection unit (70) of discharge condition；
Display module (30), for receiving the optical signal detecting unit (50), thermal signal detection unit (60) and electric signal inspection
Survey the signal of unit (70) and display；
Surge voltage module (40) for generating surge voltage, and exports and gives the experiment cavity (10) internal electric discharge device
(11)。
2. the system as claimed in claim 1, which is characterized in that
The electric discharge device (11) is needle plate electrode.
3. the system as claimed in claim 1, which is characterized in that
The optical signal detecting unit (50) includes photomultiplier, and the photomultiplier is just corresponding to the experiment cavity
(10), and/or, the photomultiplier is arranged in a cylindrical spaces of the closed cavity (20).
4. the system as claimed in claim 1, which is characterized in that
The thermal signal detection unit (60) includes the boron nitride nanosheet (61) for being set to described experiment cavity (10) inner wall, sets
The thermistor casing (62) and thermal resistance sensor (63), the boron nitride for being placed in described experiment cavity (10) outer wall are received
Rice piece (61) is connect with the thermistor casing (62), and the thermistor casing (62) is passed by conducting wire and the thermal resistance
Sensor (63) connects.
5. the system as claimed in claim 1, which is characterized in that
The electrical signal detection unit (70) includes current transformer.
6. the system as claimed in claim 1, which is characterized in that
The display module (30) includes oscillograph.
7. the system as claimed in claim 1, which is characterized in that
The thermal signal detection unit (60) is connect by first filter (81) with the display module (30), and/or, it is described
Electrical signal detection unit (70) is connect by second filter (82) with the display module (30).
8. the system as claimed in claim 1, which is characterized in that
The surge voltage module (40) includes charging trigger device (41), Marx devices (42), the charging trigger device
(41) it is connect with the Marx devices (42), the output end of the Marx devices (42) is electrically connected with the electric discharge device (11).
9. the system as claimed in claim 1, which is characterized in that
The surge voltage module (40) further includes divider (43).
10. the system as claimed in claim 1, which is characterized in that
The insulating gas is SF6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820642500.9U CN208092185U (en) | 2018-05-02 | 2018-05-02 | Shelf depreciation reaction signal detecting system under a kind of surge voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820642500.9U CN208092185U (en) | 2018-05-02 | 2018-05-02 | Shelf depreciation reaction signal detecting system under a kind of surge voltage |
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| Publication Number | Publication Date |
|---|---|
| CN208092185U true CN208092185U (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820642500.9U Active CN208092185U (en) | 2018-05-02 | 2018-05-02 | Shelf depreciation reaction signal detecting system under a kind of surge voltage |
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|---|---|
| CN (1) | CN208092185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459250A (en) * | 2018-05-02 | 2018-08-28 | 国家电网公司 | Shelf depreciation reaction signal detecting system under a kind of surge voltage |
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2018
- 2018-05-02 CN CN201820642500.9U patent/CN208092185U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459250A (en) * | 2018-05-02 | 2018-08-28 | 国家电网公司 | Shelf depreciation reaction signal detecting system under a kind of surge voltage |
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