CN109660030A - With the emitter and its launching technique of transient earth voltage shelf depreciation on site - Google Patents
With the emitter and its launching technique of transient earth voltage shelf depreciation on site Download PDFInfo
- Publication number
- CN109660030A CN109660030A CN201811478936.XA CN201811478936A CN109660030A CN 109660030 A CN109660030 A CN 109660030A CN 201811478936 A CN201811478936 A CN 201811478936A CN 109660030 A CN109660030 A CN 109660030A
- Authority
- CN
- China
- Prior art keywords
- pulse
- voltage
- site
- signal
- pulse width
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001052 transient effect Effects 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005669 field effect Effects 0.000 claims abstract description 40
- 238000003079 width control Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 15
- 229910044991 metal oxide Inorganic materials 0.000 claims description 11
- 150000004706 metal oxides Chemical class 0.000 claims description 11
- 239000004065 semiconductor Substances 0.000 claims description 11
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 210000001367 artery Anatomy 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
-
- H02J7/025—
Abstract
Disclose a kind of emitter and its launching technique with transient earth voltage shelf depreciation on site, emitter includes DC power supply, triggering and electric current pulse width control unit, field-effect transistor driving unit, high-voltage pulse generator, electromagnetic probe and electromagnetic wave transmission unit, the triggering and electric current pulse width control unit include the pulse width control unit for issuing the trigger unit of trigger signal and issuing electric current pulse width signal based on trigger signal, and the field-effect transistor driving unit is based on trigger signal and electric current pulse width signal generates pulse signal and make-and-break time；The high-voltage pulse generator generates the transient electromagnetic pulse of predetermined pulse width and preset frequency based on the pulse signal and make-and-break time, and electromagnetic wave transmission unit sends electromagnetic wave based on the transient electromagnetic pulse from the electromagnetic probe.
Description
Technical field
The present invention relates to shelf depreciation technical field, especially a kind of transmitting with transient earth voltage shelf depreciation on site
Device and its launching technique.
Background technique
It is in high-voltage isulation that shelf depreciation occurs under the action of strong electrical field for certain weak parts in Electric Power Equipment Insulation
Common problem.Although shelf depreciation will not generally cause the penetrability breakdown of insulation, dielectric can be caused (especially
Organic dielectric) local damage.If shelf depreciation long-term existence, it will lead to insulation degradation under certain condition or even hit
It wears.Therefore, carrying out shelf depreciation test to power equipment is power equipment manufacture and a running important preventive trial.
Switchgear is widely used in power grid, and shelf depreciation is one of main forms of its insulation defect, partial discharge inspection
Surveying is also the effective means for assessing apparatus insulated situation in switchgear.Partial Discharge Detection equipment based on TEV principle, which has, to be passed
It is smaller to broadcast process decaying, can be realized good detection sensitivity；It can be according to the decaying and the time difference of electromagnetic pulse signal to switch
The Partial Discharge Sources of cabinet are positioned；The advantages that partial discharge of switchgear type can be analyzed, is examined in the shelf depreciation of switchgear
It is had been widely used in survey.
However, finding in practice, most of detection devices based on TEV lack sensor field-checking function,
It not can guarantee the accuracy of detection, there is not high sensitivity, poor repeatability, be unable to the problems such as reliable location, therefore develop one
The emitter of the portable partial discharge of switchgear of kind improves the reliable of switchgear safe operation for guaranteeing detection effect
Property., for improving switchgear scene inspection quality, there is significant practical significance in the period for shortening equipment breakdown discovery defect elimination for this.
Disclosed above- mentioned information are used only for enhancing the understanding to background of the present invention in the background section, it is thus possible to
Information comprising not constituting the prior art known to a person of ordinary skill in the art in home.
Summary of the invention
In view of the above problems, the present invention implements to provide a kind of emitter with transient earth voltage shelf depreciation on site
And its launching technique, the electromagnetic signal for all generating identical energy can be triggered every time, can output pulse width be ns grades of electromagnetism
For pulse signal for the reception of ground radio wave sensor, complying fully with shelf depreciation in practice is duration very short transient process,
The consistency or repeatability of output signal and be capable of providing quantization calibration result be detect solid foundation is provided, the present invention is just
It takes, repeatability is strong, available transient earth voltage shelf depreciation on site.
The purpose of the present invention is be achieved by the following technical programs.
An aspect of of the present present invention, it is a kind of to include with the emitter of transient earth voltage shelf depreciation on site,
DC power supply；
Triggering and electric current pulse width control unit are electrically connected the DC power supply, the triggering and electric current pulse-width controlled list
Member includes,
Trigger unit issues trigger signal, and
Pulse width control unit issues electric current pulse width signal based on trigger signal；
Field-effect transistor driving unit is electrically connected DC power supply and triggering and electric current pulse width control unit, the field effect
Transistor driving unit is based on trigger signal and electric current pulse width signal generates pulse signal and make-and-break time；
High-voltage pulse generator, is electrically connected DC power supply and field-effect transistor driving unit, and the high-voltage pulse occurs
Device generates the transient electromagnetic pulse of predetermined pulse width and preset frequency based on the pulse signal and make-and-break time；
Electromagnetic probe connects high-voltage pulse generator and electromagnetic wave transmission unit；
Electromagnetic wave transmission unit sends electromagnetic wave based on the transient electromagnetic pulse from the electromagnetic probe.
For the use on site in the emitter of transient earth voltage shelf depreciation, field-effect transistor driving unit includes gold
Belong to oxide semiconductor field effect transistor.
For the use on site in the emitter of transient earth voltage shelf depreciation, metal oxide semiconductor field-effect is brilliant
Body pipe is N-type Metal Oxide Semiconductor Field Effect Transistor or P type metal oxide semiconductor field effect transistor
For the use on site in the emitter of transient earth voltage shelf depreciation, the DC power supply includes chargeable lithium
Battery.
For the use on site in the emitter of transient earth voltage shelf depreciation, the trigger unit includes that triggering is compared
End, the trigger unit electric connection DC power supply, triggering compare end and keep low level, when trigger unit receives trigger signal, touching
Hair compares end to be triggered by low transition at high level and by failing edge edge.
On site in the emitter of transient earth voltage shelf depreciation, field-effect transistor driving unit is based on the use
MOSFET traction and control charging capacitor generate transient electromagnetic pulse.
For the use on site in the emitter of transient earth voltage shelf depreciation, the high-voltage pulse generator is high pressure
Pulse packet.
The described use is on site in the emitter of transient earth voltage shelf depreciation, the no-load voltage ratio of the high-voltage pulse packet
2000:1, input voltage peak value are 22V, and high voltage package pair side output voltage peak value is up to 60kV.
The described use is on site in the emitter of transient earth voltage shelf depreciation, what the electromagnetic wave transmission unit was sent
The rising edge of a pulse of electromagnetic wave signal integral is ns grades.
According to another aspect of the present invention, a kind of use emitter of transient earth voltage shelf depreciation on site
Launching technique includes the following steps,
In the first step, triggering and electric current pulse width control unit, field-effect transistor driving unit and high-voltage pulse occur
Device is electrically connected DC power supply, and field-effect transistor driving unit one end is electrically connected field-effect transistor driving unit, other end electricity
High-voltage pulse generator is connected, electromagnetic wave transmission unit connects the high-voltage pulse generator via electromagnetic probe；
In the second step, trigger unit issues trigger signal, and pulse width control unit is based on trigger signal and issues electric current arteries and veins
Bandwidth signals；
In third step, field-effect transistor driving unit is based on trigger signal and electric current pulse width signal generates pulse signal
And make-and-break time；
In four steps, the high-voltage pulse generator is based on the pulse signal and make-and-break time generates predetermined pulse width
With the transient electromagnetic pulse of preset frequency；
In the 5th step, electromagnetic wave transmission unit sends electromagnetism based on the transient electromagnetic pulse from the electromagnetic probe
Wave.
The above description is only an overview of the technical scheme of the present invention, in order to make technological means of the invention clearer
Understand, reach the degree that those skilled in the art can be implemented in accordance with the contents of the specification, and in order to allow the present invention
Above and other objects, features and advantages can be more clearly understood, illustrated below with a specific embodiment of the invention
Explanation.
Detailed description of the invention
By reading the detailed description in hereafter preferred embodiment, various other advantages and benefits of the present invention
It will become apparent to those of ordinary skill in the art.Figure of description only for the purpose of illustrating preferred embodiments,
And it is not to be construed as limiting the invention.It should be evident that drawings discussed below is only some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.And throughout the drawings, identical component is presented with like reference characters.
In the accompanying drawings:
Fig. 1 is the structure according to an embodiment of the invention with the emitter of transient earth voltage shelf depreciation on site
Schematic diagram；
Fig. 2 is the triggering according to an embodiment of the invention with the emitter of transient earth voltage shelf depreciation on site
And the schematic circuit of electric current pulse width control unit；
Fig. 3 is the field effect according to an embodiment of the invention with the emitter of transient earth voltage shelf depreciation on site
The schematic circuit of transistor driving unit；
Fig. 4 is the field effect according to an embodiment of the invention with the emitter of transient earth voltage shelf depreciation on site
The schematic circuit of transistor driving unit；
Fig. 5 is the high pressure according to an embodiment of the invention with the emitter of transient earth voltage shelf depreciation on site
The generation schematic diagram of impulse generator；
Fig. 6 is the output according to an embodiment of the invention with the emitter of transient earth voltage shelf depreciation on site
Voltage pulse signal waveform diagram；
Fig. 7 is according to an embodiment of the invention consistent with the emitter of transient earth voltage shelf depreciation on site
Property detection waveform figure；
Fig. 8 is the transmitting according to an embodiment of the invention with the emitter of transient earth voltage shelf depreciation on site
The step schematic diagram of method.
Below in conjunction with drawings and examples, the present invention will be further explained.
Specific embodiment
1 to Fig. 8 specific embodiment that the present invention will be described in more detail below with reference to accompanying drawings.Although showing this in attached drawing
The specific embodiment of invention, it being understood, however, that may be realized in various forms the implementation of the invention without that should be illustrated here
Example is limited.It is to be able to thoroughly understand the present invention on the contrary, providing these embodiments, and can be by model of the invention
It encloses and is fully disclosed to those skilled in the art.
It should be noted that having used some vocabulary in the specification and claims to censure specific components.Ability
Field technique personnel it would be appreciated that, technical staff may call the same component with different nouns.This specification and right
It is required that not in such a way that the difference of noun is as component is distinguished, but with the difference of component functionally as differentiation
Criterion."comprising" or " comprising " as mentioned throughout the specification and claims are an open language, therefore should be solved
It is interpreted into " including but not limited to ".Specification subsequent descriptions are to implement better embodiment of the invention, so the description be with
For the purpose of the rule of specification, the range that is not intended to limit the invention.Protection scope of the present invention is when the appended right of view
It is required that subject to institute's defender.
In order to facilitate understanding of embodiments of the present invention, it is done by taking several specific embodiments as an example below in conjunction with attached drawing further
Explanation, and each attached drawing does not constitute the restriction to the embodiment of the present invention.
The embodiment of the present invention will be specifically described in conjunction with Fig. 1-8.Fig. 1 is one embodiment of the present of invention on site
The structural schematic diagram of the emitter of transient earth voltage shelf depreciation, as shown in Figure 1, a kind of part of transient earth voltage on site
The emitter of electric discharge includes,
DC power supply 1；
Triggering and electric current pulse width control unit 2 are electrically connected the DC power supply 1, the triggering and electric current pulse-width controlled
Unit 2 includes,
Trigger unit 3 issues trigger signal,
Pulse width control unit 4 issues electric current pulse width signal based on trigger signal；
Field-effect transistor driving unit 5 is electrically connected DC power supply 1 and triggering and electric current pulse width control unit 2, the field
It imitates transistor driving unit 5 and is based on trigger signal and electric current pulse width signal generation pulse signal and make-and-break time；
High-voltage pulse generator 6 is electrically connected DC power supply 1 and field-effect transistor driving unit 5, the high-voltage pulse hair
Raw device 6 generates the transient electromagnetic pulse of predetermined pulse width and preset frequency based on the pulse signal and make-and-break time；
Electromagnetic probe 7 connects high-voltage pulse generator 6 and electromagnetic wave transmission unit 8；
Electromagnetic wave transmission unit 8 sends electromagnetic wave based on the transient electromagnetic pulse from the electromagnetic probe 7.
For a further understanding of the present invention, in one embodiment, with the transmitting of transient earth voltage shelf depreciation on site
Device includes that triggering and electric current pulse width control unit 2, MOSFET driving circuit control unit, high-voltage pulse generator 6, electromagnetism are visited
First 7 and 8 multiple portions of electromagnetic wave transmission unit composition.Triggering and electric current pulse width control unit 2 provide for MOSFET driving circuit
Pulse signal controls the turn-on and turn-off of MOSFET, and then generates pulsewidth on electromagnetic probe 7, the transient state that frequency is setting value
Electromagnetic pulse, and be more radiated the electromagnetic wave of generation in space by electromagnetic wave transmission unit 8.Due to using MOSFET
Mode controls current impulse, and rear end the method for voltage signal can be used the high-voltage pulse packet of miniaturization, thus instead of volume compared with
Big pulse transformer, entire calibration equipment realize miniaturization and portability.
In one embodiment, DC power supply 1 uses the lithium battery that can be used with cycle charging, and energy conservation and environmental protection solves simultaneously
It has determined the power issue of field construction operation, has avoided separately connecing power supply at the scene, the selection and cooperation of electronic device use energy-saving square
Formula, so that theoretical stand-by time is up to 16 hours.
In one embodiment, electromagnetic pulse conditioning unit includes triggering and electric current pulse width control unit 2, MOSFET driving
Circuit control unit, 6 multiple portions of high-voltage pulse generator, energy production are drawn and are controlled the side of charging capacitor using MOSFET
Formula reduces the weight and size of equipment in design, is convenient for carrying.Current impulse, rear end pair are controlled using MOSFET mode
The high-voltage pulse packet of miniaturization can be used in the method for voltage signal, to realize entire instead of the biggish pulse transformer of volume
The miniaturization and portability of calibration equipment.
In one embodiment, according to requiring, the input of single pulse signal uses artificial key triggering mode, triggers mode
For standby mode, therefore after the opening of DC power supply 1, working cell is constantly in state to be triggered, triggering compare end+Tr1 and-
Tr1 maintains low level, after trigger unit 3Q2 receives trigger signal, compares end-Tr1 and is in high level, and by failing edge along touching
Hair, CMOS enter working condition, and pulse width control unit 4 starts simultaneously at starting.Switch triggering and electric current pulse width control unit 2 are as schemed
Shown in 2.
The described use is on site in the emitter preferred embodiment of transient earth voltage shelf depreciation, the DC power supply 1
Including rechargeable lithium battery.
The described use is on site in the emitter preferred embodiment of transient earth voltage shelf depreciation, the trigger unit 3
Compare end, the 3 electric connection DC power supply 1 of trigger unit including triggering, triggering compares end and keeps low level, when trigger unit 3
Trigger signal is received, triggering is compared end and triggered by low transition at high level and by failing edge edge.
In one embodiment, field-effect transistor driving unit 5 shown in Fig. 3 is controlled by upper level switch triggering unit 3
System, and provide stable incoming level for rear stage MOSFET and control the make-and-break time of MOSFET.
On site in the emitter preferred embodiment of transient earth voltage shelf depreciation, field-effect transistor drives the use
Unit 5 includes Metal Oxide Semiconductor Field Effect Transistor.
The use on site in the emitter preferred embodiment of transient earth voltage shelf depreciation, partly lead by metal oxide
Body field effect transistor is that N-type Metal Oxide Semiconductor Field Effect Transistor or P type metal oxide semiconductor field-effect are brilliant
Body pipe.
On site in the emitter preferred embodiment of transient earth voltage shelf depreciation, field-effect transistor drives the use
Unit 5 is based on MOSFET and draws and control charging capacitor generation transient electromagnetic pulse
In one embodiment, MOSFET output unit output level shown in Fig. 4 is determined by capacitor C6 and resistance R4, defeated
Energy is determined by the charging efficiency that MOSFET make-and-break time and 4-6V DC power supply 1 are capacitor C6 out.It is connect in the switch of DC power supply 1
Under logical state, 4-6V DC power supply 1 is always capacitor C6 charging, which is the waiting turnaround time of tester, about
In 2~5s or so, to guarantee that the steeper rising edge of MOSFET output voltage, the resistance of output loop are set as zero.
The use on site in the emitter preferred embodiment of transient earth voltage shelf depreciation, send out by the high-voltage pulse
Raw device 6 is high-voltage pulse packet.
The described use is on site in the emitter preferred embodiment of transient earth voltage shelf depreciation, the high-voltage pulse packet
No-load voltage ratio 2000:1, input voltage peak value is 22V, and high voltage package pair side output voltage peak value is up to 60kV.
In one embodiment, the no-load voltage ratio 2000:1 of high-voltage pulse packet shown in fig. 5, input voltage peak value are 22V, high pressure
It wraps secondary side output voltage peak value and reaches as high as 60kV, the setting of sharp plate spark gap distance can be according to verified sensor device
Response sensitivity determines, according to the sensitivity for the ground electric wave test equipment that investigation is widely used at present, fixes the checker
Spark gap is 4mm.
On site in the emitter preferred embodiment of transient earth voltage shelf depreciation, the electromagnetic wave is sent the use
The rising edge of a pulse for the electromagnetic wave signal integral that unit 8 is sent is ns grades.
In one embodiment, the voltage pulse signal such as Fig. 6 institute exported under high-voltage pulse packet no-load condition by MOSFET
Show, which is about 2ns, pulsewidth 22ns.After pulse packet, which is incorporated to, seals in spark gap, flowed through in electric discharge moment
Also as shown, as seen from the figure, which is about 2.5ns, half peak value is about the pulsed current signal in circuit
20ns complies fully with practical pulse current of PD wave character.
Since ground electric wave detection sensor is the response to electromagnetic wave integral energy signal, the electromagnetism of checker output
Wave integrated signal energy demand has consistency, i.e., triggers the electromagnetic signal for all generating identical energy every time.As shown in fig. 7, being
Verifier is certain in strength of discharge, and spark gap is certain, one timing of hookup, when exporting certain frequency discharge pulse, through TEV
The collected TEV pulse train waveform of sensor, as seen from the figure, each discharge pulse amplitude size is certain, illustrates that the present invention has
Preferable consistency, and by repeatedly testing, the repetitive rate of pulse amplitude and energy is almost 100%.
According to another aspect of the present invention, as shown in figure 8, with transient earth voltage shelf depreciation on site described in one kind
The launching technique of emitter includes the following steps,
In first step S1, triggering and electric current pulse width control unit 2, field-effect transistor driving unit 5 and high-voltage pulse
Generator 6 is electrically connected DC power supply 1, and 5 one end of field-effect transistor driving unit is electrically connected field-effect transistor driving unit 5,
The other end is electrically connected high-voltage pulse generator 6, and electromagnetic wave transmission unit 8 connects the high-voltage pulse via electromagnetic probe 7 and occurs
Device 6；
In second step S2, trigger unit 3 issues trigger signal, and pulse width control unit 4 is based on trigger signal and issues electricity
Pulse width signal is flowed,
In third step S3, field-effect transistor driving unit 5 is based on trigger signal and electric current pulse width signal generates pulse
Signal and make-and-break time；
In the fourth step s 4, the high-voltage pulse generator 6 is based on the pulse signal and make-and-break time generates and makes a reservation for
The transient electromagnetic pulse of pulsewidth and preset frequency,
In the 5th step S5, electromagnetic wave transmission unit 8 is sent based on the transient electromagnetic pulse from the electromagnetic probe 7
Electromagnetic wave.
Although embodiment of the present invention is described in conjunction with attached drawing above, the invention is not limited to above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiment are only schematical, directiveness, rather than restricted
's.Those skilled in the art are under the enlightenment of this specification and in the range for not departing from the claims in the present invention and being protected
In the case where, a variety of forms can also be made, these belong to the column of protection of the invention.
Claims (10)
1. a kind of emitter with transient earth voltage shelf depreciation on site comprising,
DC power supply；
Triggering and electric current pulse width control unit are electrically connected the DC power supply, the triggering and electric current pulse width control unit packet
It includes,
Trigger unit issues trigger signal, and
Pulse width control unit issues electric current pulse width signal based on trigger signal；
Field-effect transistor driving unit, is electrically connected DC power supply and triggering and electric current pulse width control unit, and crystal is imitated in the field
Pipe driving unit is based on trigger signal and electric current pulse width signal generates pulse signal and make-and-break time；
High-voltage pulse generator is electrically connected DC power supply and field-effect transistor driving unit, the high-voltage pulse generator base
The transient electromagnetic pulse of predetermined pulse width and preset frequency is generated in the pulse signal and make-and-break time；
Electromagnetic probe connects high-voltage pulse generator and electromagnetic wave transmission unit；
Electromagnetic wave transmission unit sends electromagnetic wave based on the transient electromagnetic pulse from the electromagnetic probe.
2. the emitter according to claim 1 with transient earth voltage shelf depreciation on site, wherein preferred, field
Imitating transistor driving unit includes Metal Oxide Semiconductor Field Effect Transistor.
3. the emitter according to claim 2 with transient earth voltage shelf depreciation on site, wherein metal oxide
Semiconductor field effect transistor is that N-type Metal Oxide Semiconductor Field Effect Transistor or P type metal oxide semiconductor field are imitated
Answer transistor.
4. the emitter according to claim 1 with transient earth voltage shelf depreciation on site, wherein the direct current
Source includes rechargeable lithium battery.
5. the emitter according to claim 1 with transient earth voltage shelf depreciation on site, wherein the triggering is single
Member includes that end, the trigger unit electric connection DC power supply are compared in triggering, and triggering compares end and keeps low level, when trigger unit connects
Trigger signal is received, triggering is compared end and triggered by low transition at high level and by failing edge edge.
6. the emitter according to claim 1 with transient earth voltage shelf depreciation on site, wherein field-effect transistor
Driving unit is based on MOSFET and draws and control charging capacitor generation transient electromagnetic pulse.
7. the emitter according to claim 1 with transient earth voltage shelf depreciation on site, wherein the high-tension pulse
Rushing generator is high-voltage pulse packet.
8. the emitter according to claim 7 with transient earth voltage shelf depreciation on site, wherein the high-tension pulse
The no-load voltage ratio 2000:1 of packet is rushed, input voltage peak value is 22V, and high voltage package pair side output voltage peak value is up to 60kV.
9. the emitter according to claim 6 with transient earth voltage shelf depreciation on site, wherein the electromagnetic wave
The rising edge of a pulse for the electromagnetic wave signal integral that transmission unit is sent is ns grades.
10. a kind of hair of any of claims 1-9 with the emitter of transient earth voltage shelf depreciation on site
Shooting method comprising following steps,
In first step (S1), triggering and electric current pulse width control unit, field-effect transistor driving unit and high-voltage pulse occur
Device is electrically connected DC power supply, and field-effect transistor driving unit one end is electrically connected field-effect transistor driving unit, other end electricity
High-voltage pulse generator is connected, electromagnetic wave transmission unit connects the high-voltage pulse generator via electromagnetic probe；
In second step (S2), trigger unit issues trigger signal, and pulse width control unit is based on trigger signal and issues electric current arteries and veins
Bandwidth signals；
In third step (S3), field-effect transistor driving unit is based on trigger signal and electric current pulse width signal generates pulse signal
And make-and-break time；
In four steps (S4), the high-voltage pulse generator is based on the pulse signal and make-and-break time generates predetermined pulse width
With the transient electromagnetic pulse of preset frequency；
In the 5th step (S5), electromagnetic wave transmission unit sends electromagnetism based on the transient electromagnetic pulse from the electromagnetic probe
Wave.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811412504 | 2018-11-23 | ||
| CN2018114125049 | 2018-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109660030A true CN109660030A (en) | 2019-04-19 |
Family
ID=66112453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811478936.XA Pending CN109660030A (en) | 2018-11-23 | 2018-12-05 | With the emitter and its launching technique of transient earth voltage shelf depreciation on site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109660030A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130047418A (en) * | 2011-10-31 | 2013-05-08 | 한국전력공사 | Apparatus and method for diagnosing partial discharge of high voltage facilities using a plurality of sensors |
| CN103197272A (en) * | 2013-03-15 | 2013-07-10 | 中国电力科学研究院 | System and method of measuring performance of partial discharge transient state ground voltage detector |
| CN204028342U (en) * | 2014-08-02 | 2014-12-17 | 贵州电力试验研究院 | A kind of calibration equipment of the Partial discharge detector based on electromagnetic signal |
| CN107818218A (en) * | 2017-10-31 | 2018-03-20 | 天津大学 | A kind of nanosecond electromagnetic pulse generator for electromagnetism direct fault location |
-
2018
- 2018-12-05 CN CN201811478936.XA patent/CN109660030A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130047418A (en) * | 2011-10-31 | 2013-05-08 | 한국전력공사 | Apparatus and method for diagnosing partial discharge of high voltage facilities using a plurality of sensors |
| CN103197272A (en) * | 2013-03-15 | 2013-07-10 | 中国电力科学研究院 | System and method of measuring performance of partial discharge transient state ground voltage detector |
| CN204028342U (en) * | 2014-08-02 | 2014-12-17 | 贵州电力试验研究院 | A kind of calibration equipment of the Partial discharge detector based on electromagnetic signal |
| CN107818218A (en) * | 2017-10-31 | 2018-03-20 | 天津大学 | A kind of nanosecond electromagnetic pulse generator for electromagnetism direct fault location |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101398443B (en) | Intelligent impulsator | |
| Yao et al. | FPGA-controlled all-solid-state nanosecond pulse generator for biological applications | |
| CN109490812B (en) | Nanosecond impulse voltage generator and detection system for detecting overvoltage of transformer | |
| CN207490885U (en) | A kind of tesla's voltage boosting pulse source | |
| CN211653004U (en) | Electromagnetic radiation interference generating device | |
| Liu et al. | A compact 100-pps high-voltage trigger pulse generator | |
| CN204028342U (en) | A kind of calibration equipment of the Partial discharge detector based on electromagnetic signal | |
| CN208109986U (en) | Shelf depreciation simulator | |
| CN209028143U (en) | Electric vehicle alternating current charging test system | |
| CN204065180U (en) | A kind of wave of oscillation produces system and partial discharge detecting system | |
| CN109660030A (en) | With the emitter and its launching technique of transient earth voltage shelf depreciation on site | |
| CN109669107A (en) | Simulate the device and its analogy method of shelf depreciation | |
| CN110045199B (en) | EFT/ESD/CS electromagnetic interference analyzer | |
| CN203423662U (en) | High-voltage nanosecond pulse generator, and Marx generator and circuit simulation model thereof | |
| CN208596234U (en) | A kind of detection device of multipole acoustic wave apparatus transmitting probe | |
| CN109307829A (en) | With the detection device and its detection method of transient earth voltage shelf depreciation on site | |
| CN208849692U (en) | A kind of compact high-voltage switch gear component | |
| CN109596953A (en) | Electromagnetic wave launcher and instrument for measuring partial discharge's device | |
| CN210155225U (en) | EFT/ESD/CS electromagnetic interference analyzer | |
| CN105049004B (en) | A kind of tubular type nanosecond high pressure steep-sided pulse source | |
| MacGregor et al. | The design and operation of a compact high-voltage, high pulse repetition frequency trigger generator | |
| CN212514979U (en) | High-voltage nanosecond pulse generator for calibration | |
| CN216792342U (en) | Power line peak voltage simulator | |
| CN109905101A (en) | Bipolar pulse generating device | |
| CN204993280U (en) | High -pressure steep -sided pulse source of tubular nanosecond level |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190419 |
|
| RJ01 | Rejection of invention patent application after publication |