CN205139293U - Pulse electric field of being applied to distribution lines failure diagnosis experiment produces device - Google Patents
Pulse electric field of being applied to distribution lines failure diagnosis experiment produces device Download PDFInfo
- Publication number
- CN205139293U CN205139293U CN201520954601.6U CN201520954601U CN205139293U CN 205139293 U CN205139293 U CN 205139293U CN 201520954601 U CN201520954601 U CN 201520954601U CN 205139293 U CN205139293 U CN 205139293U
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- stainless steel
- electric field
- voltage pulse
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Testing Relating To Insulation (AREA)
Abstract
The utility model discloses a pulse electric field of being applied to distribution lines failure diagnosis experiment produces device, including high -voltage pulse power and high -voltage pulse electric field electrode, ACDC converter that the high -voltage pulse power includes the transformer, go on changing to the transformer output signal, the DC -DC converter that goes on changing to ACDC converter output signal, the high -frequency transformer who carries out the DC -AC dc -to -ac converter of changing and go on DC -AC dc -to -ac converter output signal changing DC -DC converter output signal, high -frequency transformer's output and high -voltage pulse electric field electrode are connected. The utility model discloses a high -voltage pulse electric field technique, an electric field pulse width that builds is narrow, and unit interval pulse quantity is few, does not have electric discharge phenomena between the positive and negative electrode, and the electric current is very little, and the processing time is short, can satisfy the experiment of transient state failure diagnosis and detect the requirement to the device aggregate capacity is little, and it has very big energy -conserving advantage to generate the principle for other electric fields.
Description
Technical field
The utility model relates to the electric field generating apparatus in electrical engineering field, particularly a kind of impulse electric field generation device.
Background technology
In recent years, the raising along with distribution automation level and the growth to electricity needs, people more and more pay attention to the quality of power supply and power supply reliability.10kV distribution line running environment is complicated, very easily break down, the kind producing fault is a lot, and fault is very large on network system impact after occurring, the direct safe and stable operation affecting electrical network, even endanger personal safety, need the attention causing people to study fault distinguishing, the harm that fault is brought could be solved in time.
After distribution line failure occurs, the electric current and voltage of circuit all can change, and therefore the change of Real-Time Monitoring line voltage distribution electric current detects distribution line failure type way the most intuitively.Domestic and international researcher has carried out large quantifier elimination in power-frequency voltage current measurement direction, especially contactless voltage current transformer, its measurement cuts down law based on electrostatic induction principle and Biot-sand, utilize the inverse problem of electromagnetic field, detected electric field intensity and the magnetic field intensity of surrounding space by the probe of mutual inductor, then backstepping calculates the voltage and current of conductor to be measured.When conductor voltage change to be measured, surrounding electric field intensity changes thereupon, and during conductor current to be measured change, ambient magnetic field strength changes thereupon.The research being applied to the contactless voltage current transformer that steady state voltage detects is comparatively simple, corresponding research experiment condition easily realizes, but difficulty is very large when research is applied to the voltage transformer (VT) of transient voltage current detecting, mainly because when carrying out transient state experiment, need the electric field that charged bodily form transient voltage is formed, and malfunction is all transient state usually.
Utility model content
In view of this, the utility model provides a kind of impulse electric field generation device being applied to distribution line failure diagnostic test, to solve the contactless voltage current transformer problem that detection difficulty is large when carrying out transient fault diagnostic test.
The utility model is applied to the impulse electric field generation device of distribution line failure diagnostic test, comprise high-voltage pulse power source and high-voltage pulse electric field plate, the AC/DC converter that described high-voltage pulse power source comprises transformer, change transformer output signal, the dc-dc that AC/DC converter output signal is changed, the DC-AC inverter changed and the high-frequency transformer changed DC-AC inverter output signal are outputed signal to dc-dc, the output terminal of described high-frequency transformer and high-pressure pulse electric Electrode connection.
Further, described high-voltage pulse electric field plate comprises central copper bar electrode, be disposed coaxially on the stainless steel inner core electrode outside central copper bar electrode, be disposed coaxially on cylinder electrode in the stainless steel outside stainless steel inner core electrode, and the stainless steel outside electrode be disposed coaxially in stainless steel outside cylinder electrode, in described stainless steel inner core electrode and stainless steel cylinder electrode interior lateral surface on, and the medial surface of stainless steel outside electrode has been evenly arranged tapered protrusion, described stainless steel inner core electrode, in stainless steel, cylinder electrode and stainless steel outside electrode all cover sealing by insulating material, in described central copper bar electrode and stainless steel, cylinder electrode is connected with the positive pole of high-voltage pulse power source, and stainless steel inner core electrode and stainless steel outside electrode are connected with high-voltage pulse power source negative pole and ground connection.
The beneficial effects of the utility model:
A kind of impulse electric field generation device being applied to distribution line failure diagnostic test of the utility model, it adopts high-voltage pulse electric field technology, institute's electric field pulse width of building is narrow, unit interval number of pulses is few, there are not electric discharge phenomena between positive and negative electrode, and electric current is very little, processing time is short, can meet transient fault diagnostic test testing requirement, and device general power is little, has great power savings advantages relative to other electric field generating principles.
Accompanying drawing explanation
Fig. 1 is impulse electric field generation device structural representation;
Fig. 2 is high-voltage pulse power source functional structure chart.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure, the present embodiment is applied to the impulse electric field generation device of distribution line failure diagnostic test, comprise high-voltage pulse power source 1 and high-voltage pulse electric field plate 2, described high-voltage pulse power source comprises transformer T1, to the AC/DC converter that transformer output signal is changed, to the dc-dc that AC/DC converter output signal is changed, dc-dc is outputed signal to the DC-AC inverter changed, and to the high-frequency transformer T2 that DC-AC inverter output signal is changed, the output terminal of described high-frequency transformer and high-pressure pulse electric Electrode connection.
The present embodiment is applied to the impulse electric field generation device of distribution line failure diagnostic test, its high-voltage pulse power source 1 is for making electrical isolation between converter and input, adopt transformer T1 by alternating current AC(220 volt civil power) deliver to AC/DC converter, obtain the DC voltage of required numerical value; AC/DC conversion adopts the uncontrollable rectifier system of diode rectifier bridge, and electric power only passes to DC side from AC.Dc-dc is used for obtaining constant direct supply, even if also can keep constant when alternating current input power supplying fluctuates; Its input is the DC voltage obtained by AC-DC, is unjustified, can have certain change along with the fluctuation of AC-input voltage.DC-AC inverter is used for obtaining the alternating current of a certain size and frequency, and this size and frequency can regulate within the specific limits.Finally, square-wave voltage transformation DC-DC converter exported by high-frequency transformer T2, brings up to the voltage levvl needed for impulse electric field, and the output terminal of high-frequency transformer T2 is connected with high-voltage pulse electric field plate through high pressure connection.
The present embodiment is applied to the impulse electric field generation device of distribution line failure diagnostic test, it adopts high-voltage pulse electric field technology, institute's electric field pulse width of building is narrow, unit interval number of pulses is few, there are not electric discharge phenomena between positive and negative electrode, and electric current is very little, processing time is short, can meet transient fault diagnostic test testing requirement, and device general power is little, has great power savings advantages relative to other electric field generating principles.
In the present embodiment, described high-voltage pulse electric field plate comprises central copper bar electrode 3, be disposed coaxially on the stainless steel inner core electrode 4 outside central copper bar electrode, be disposed coaxially on cylinder electrode 5 in the stainless steel outside stainless steel inner core electrode, and the stainless steel outside electrode 6 be disposed coaxially in stainless steel outside cylinder electrode, in described stainless steel inner core electrode and stainless steel cylinder electrode interior lateral surface on, and the medial surface of stainless steel outside electrode has been evenly arranged tapered protrusion, described stainless steel inner core electrode, in stainless steel, cylinder electrode and stainless steel outside electrode all cover sealing by insulating material, in described central copper bar electrode and stainless steel, cylinder electrode is connected with the positive pole of high-voltage pulse power source, and stainless steel inner core electrode and stainless steel outside electrode are connected with high-voltage pulse power source negative pole and ground connection.
After high-voltage pulse electric field plate applies required high-voltage pulse, enough high field pulses can be produced in cavity in-between the electrodes, voltage waveform on positive and negative electrode and current waveform is applied to by dual trace oscilloscope measurement, the collection of current waveform is obtained by the voltage waveform detected on the resistance R in the loop of connecting, and can realize detecting line voltage distribution electric current.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (2)
1. one kind is applied to the impulse electric field generation device of distribution line failure diagnostic test, it is characterized in that: comprise high-voltage pulse power source and high-voltage pulse electric field plate, the AC/DC converter that described high-voltage pulse power source comprises transformer, change transformer output signal, the dc-dc that AC/DC converter output signal is changed, the DC-AC inverter changed and the high-frequency transformer changed DC-AC inverter output signal are outputed signal to dc-dc, the output terminal of described high-frequency transformer and high-pressure pulse electric Electrode connection.
2. a kind of impulse electric field generation device being applied to distribution line failure diagnostic test according to claim 1, it is characterized in that: described high-voltage pulse electric field plate comprises central copper bar electrode, be disposed coaxially on the stainless steel inner core electrode outside central copper bar electrode, be disposed coaxially on cylinder electrode in the stainless steel outside stainless steel inner core electrode, and the stainless steel outside electrode be disposed coaxially in stainless steel outside cylinder electrode, in described stainless steel inner core electrode and stainless steel cylinder electrode interior lateral surface on, and the medial surface of stainless steel outside electrode has been evenly arranged tapered protrusion, described stainless steel inner core electrode, in stainless steel, cylinder electrode and stainless steel outside electrode all cover sealing by insulating material, in described central copper bar electrode and stainless steel, cylinder electrode is connected with the positive pole of high-voltage pulse power source, and stainless steel inner core electrode and stainless steel outside electrode are connected with high-voltage pulse power source negative pole and ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520954601.6U CN205139293U (en) | 2015-11-26 | 2015-11-26 | Pulse electric field of being applied to distribution lines failure diagnosis experiment produces device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520954601.6U CN205139293U (en) | 2015-11-26 | 2015-11-26 | Pulse electric field of being applied to distribution lines failure diagnosis experiment produces device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205139293U true CN205139293U (en) | 2016-04-06 |
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ID=55625071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520954601.6U Expired - Fee Related CN205139293U (en) | 2015-11-26 | 2015-11-26 | Pulse electric field of being applied to distribution lines failure diagnosis experiment produces device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205139293U (en) |
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2015
- 2015-11-26 CN CN201520954601.6U patent/CN205139293U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |