CN208224331U - A kind of wideband resonance potential generator - Google Patents
A kind of wideband resonance potential generator Download PDFInfo
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- CN208224331U CN208224331U CN201820629875.1U CN201820629875U CN208224331U CN 208224331 U CN208224331 U CN 208224331U CN 201820629875 U CN201820629875 U CN 201820629875U CN 208224331 U CN208224331 U CN 208224331U
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Abstract
The utility model discloses a kind of wideband resonance potential generators, including input power, the output end of the input power is electrically connected with frequency-variable controller by conducting wire, the output end of frequency-variable controller is connected with exciting transformer by conducting wire, the output end of exciting transformer is connected with the first high voltage reactor by conducting wire, the output end of first high voltage reactor is connected with the second high voltage reactor by conducting wire, the output end of second high voltage reactor is connected with high-voltage bleeder high-voltage arm by conducting wire, the output end of high-voltage bleeder high-voltage arm is connected with high-voltage bleeder low-voltage arm by conducting wire, the output end of high-voltage bleeder low-voltage arm is connected by the input terminal of conducting wire and exciting transformer, the utility model relates to technical field of electric power detection.The wideband resonance potential generator, has achieved the purpose that required power supply capacity greatly reduces, and the weight and volume of equipment greatly reduces, and improves output voltage waveforms, prevents big short circuit current burn fault point.
Description
Technical field
The utility model relates to technical field of electric power detection, specially a kind of wideband resonance potential generator.
Background technique
It is original to have the crosslinked polyetylene insulated power cable substitution of more and more XLPE in international and national at present
The power cable of oil-filled paper oil insulation.But since subject capacity is big and testing equipment on the research technique before crosslinked cable puts into operation
The reason of, still follow the test method using DC break down voltage.The research achievement table of international in recent years, domestic many research institutions
Bright DC experiment has different degrees of damage to XLPE twisted polyethylene cable.Some research viewpoints think that XLPE structure has and deposit
The ability for storing up tired unipolarity residual charge such as cannot effectively discharge direct current residual charge, put into operation after DC experiment
Cable will likely be caused to puncture plus alternating voltage peak in direct current residual charge afterwards.Domestic some research institutions think,
In the DC break down voltage test of twisted polyethylene cable, due to space charge effect, the practical electric field strength in insulation is than cable
The working field strength of insulation is up to 11 times.Do not puncture even if cross-linked polyethylene insulated cable has passed through DC experiment,
It can cause the serious damage of insulation.Secondly as the alternating voltage field strength distribution of the DC voltage field strength distribution and operation that apply
It is different.DC experiment can not cable is born under real simulation operating status overvoltage, and effectively find cable and cable
Connector itself and the defect in construction technology.Therefore, more next to crosslinked cable progress pressure test using the method for non-dc
More it is valued by people.Meanwhile the ac voltage withstanding test of various high-power transformers, the ac voltage withstanding of firepower and hydroelectric generator
Experiment also periodically carries out.The testing equipment capacity of the test requirements document of these equipment is big, under normal conditions using resonance method into
Row test, wideband resonance potential generator are mainly used for the crosslinking rubber power cable of 10kV, 35kV, 110kV, 66kV,
The power frequency of the frequency-changing AC pressure test of 110kV, 220kV combined electrical apparatus, waterpower and thermoelectric generator or power transformer etc. is handed over
Flow pressure test.The basic principle is that using adjustable (30 arrive 300Hz) series resonant testing equipment and test item capacitor resonance
Generate ac test voltage.Since the capacitance of cable is larger,
Using traditional power frequency testing transformer, very heavy, huge and high current working power scene is not easy to obtain, because
This is generally used series resonance ac voltage withstanding testing equipment, and the capacity of input power can significantly reduce, and weight saving is convenient for
Use and transport, initial stage mostly uses induction-regulated series resonance testing device, but there are the degree of automation it is poor, noise is big the disadvantages of.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of wideband resonance potential generator, solves use
Traditional power frequency testing transformer is very heavy, huge and high current working power scene is not easy to obtain, therefore is generally used
Series resonance ac voltage withstanding testing equipment, the capacity of input power can significantly reduce, weight saving, are easy to use and transport,
Initial stage mostly uses induction-regulated series resonance testing device, but there is a problem of that the degree of automation is poor, noise is big.
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of wideband resonance potential hair
Raw device, including input power, the output end of the input power are electrically connected with frequency-variable controller, the frequency conversion control by conducting wire
The output end of device processed is connected with exciting transformer by conducting wire, and the output end of the exciting transformer is connected with first by conducting wire
The output end of high voltage reactor, first high voltage reactor is connected with the second high voltage reactor by conducting wire.
Preferably, the output end of second high voltage reactor is connected with high-voltage bleeder high-voltage arm by conducting wire.
Preferably, the output end of the high-voltage bleeder high-voltage arm is connected with high-voltage bleeder low-voltage arm, institute by conducting wire
The output end for stating high-voltage bleeder low-voltage arm is connected by the input terminal of conducting wire and exciting transformer.
Preferably, the output end of second high voltage reactor is connected with test product, the output end of the test product by conducting wire
It is connected by the input terminal of conducting wire and exciting transformer.
Preferably, the output end of the high-voltage bleeder low-voltage arm is connected with ground line.
Preferably, peak value measuring gauge is connected with by conducting wire between the exciting transformer and high-voltage bleeder high-voltage arm.
Beneficial effect
The utility model provides a kind of wideband resonance potential generator.Have following the utility model has the advantages that the wideband resonance electricity
Generator is pressed, frequency-variable controller is electrically connected with by conducting wire by the output end for including input power, the input power, institute
The output end for stating frequency-variable controller is connected with the first high voltage reactor by conducting wire, and the output end of first high voltage reactor is logical
It crosses conducting wire and is connected with the second high voltage reactor, the output end of second high voltage reactor is connected with high-voltage bleeder by conducting wire
The output end of high-voltage arm, the high-voltage bleeder high-voltage arm is connected with high-voltage bleeder low-voltage arm, the high pressure point by conducting wire
The output end of depressor low-voltage arm is connected by the input terminal of conducting wire and exciting transformer, the output end of second high voltage reactor
It is connected with test product by conducting wire, the output end of the test product is connected by the input terminal of conducting wire and exciting transformer, the high pressure
The output end of divider low-voltage arm is connected with ground line, passes through conducting wire between the exciting transformer and high-voltage bleeder high-voltage arm
It is connected with peak value measuring gauge, has achieved the purpose that required power supply capacity greatly reduces, the weight and volume of equipment greatly reduces, and changes
Kind output voltage waveforms prevent big short circuit current burn fault point.
Detailed description of the invention
Fig. 1 is the utility model electrical block diagram.
In figure: 1 input power, 2 frequency-variable controllers, 3 exciting transformers, 4 first high voltage reactors, 5 second high pressure reactance
Device, 6 high-voltage bleeder high-voltage arms, 7 high-voltage bleeder low-voltage arms, 8 test products, 9 ground lines, 10 peak value measuring gauges.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of technical solution: a kind of wideband resonance potential generator, including input
Power supply 1, input power 1 are exactly an amplitude and the adjustable sine wave AC variable frequency power source of frequency, provide excitation to resonant tank
Source, at the same provide voltage show, the functions such as electric current is shown, timing, protection, alarm, the output end of input power 1 passes through conducting wire electricity
Property is connected with frequency-variable controller 2, and the output end of frequency-variable controller 2 is connected with exciting transformer 3, exciting transformer 3 by conducting wire
Host power supply and resonant tank power supply is isolated, and increases the output voltage of host, the output end of exciting transformer 3 is connected by conducting wire
It is connected to the first high voltage reactor 4, the output end of the first high voltage reactor 4 is connected with the second high voltage reactor 5, reactance by conducting wire
Device is exactly a big inductance coil, constitutes series resonant tank with test item (being equivalent to capacitor), can configure reactor more piece electricity
Anti- device, when use by different series, parallel combinations, realize different inductances to be applicable in different experimental conditions, second
The output end of high voltage reactor 5 is connected with high-voltage bleeder high-voltage arm 6, the output end of high-voltage bleeder high-voltage arm 6 by conducting wire
It is connected with high-voltage bleeder low-voltage arm 7 by conducting wire, is divided inside divider by capacitor, high voltage is got low from test product
Voltage is measured for host, control uses, and the output end of high-voltage bleeder low-voltage arm 7 passes through the input of conducting wire and exciting transformer 3
The output end of end connection, the second high voltage reactor 5 is connected with test product 8 by conducting wire, and the output end of test product 8 passes through conducting wire and excitation
The input terminal of transformer 3 connects, and the output end of high-voltage bleeder low-voltage arm 7 is connected with ground line 9, exciting transformer 3 and high pressure
Peak value measuring gauge 10 is connected with by conducting wire between divider high-voltage arm 6.
In use, providing power supply to frequency-variable controller 2 by input power 1, test voltage is by exciting transformer 3 by just
After step boosting, it is added in high voltage on the first high voltage reactor 4, the second high voltage reactor 5 and test product 8, by changing frequency conversion control
The output frequency of device 2 makes circuit be in series resonance state, adjusts the output voltage amplitude value of input power, makes on test product 8
High pressure reaches suitable voltage value, and the resonance frequency in circuit depends on and concatenated first high voltage reactor 4, second of test item 8
The inductance of high voltage reactor 5 and the capacitor of test product 8.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of wideband resonance potential generator, including input power (1), it is characterised in that: the output of the input power (1)
End is electrically connected with frequency-variable controller (2) by conducting wire, and the output end of the frequency-variable controller (2) is connected with excitation by conducting wire
The output end of transformer (3), the exciting transformer (3) is connected with the first high voltage reactor (4) by conducting wire, and described first is high
The output end of pressure reactor (4) is connected with the second high voltage reactor (5) by conducting wire.
2. a kind of wideband resonance potential generator according to claim 1, it is characterised in that: second high voltage reactor
(5) output end is connected with high-voltage bleeder high-voltage arm (6) by conducting wire.
3. a kind of wideband resonance potential generator according to claim 2, it is characterised in that: the high-voltage bleeder high pressure
The output end of arm (6) is connected with high-voltage bleeder low-voltage arm (7) by conducting wire, the output of the high-voltage bleeder low-voltage arm (7)
End is connect by conducting wire with the input terminal of exciting transformer (3).
4. a kind of wideband resonance potential generator according to claim 1, it is characterised in that: second high voltage reactor
(5) output end is connected with test product (8) by conducting wire, and the output end of the test product (8) passes through conducting wire and exciting transformer (3)
Input terminal connection.
5. a kind of wideband resonance potential generator according to claim 3, it is characterised in that: the high-voltage bleeder low pressure
The output end of arm (7) is connected with ground line (9).
6. a kind of wideband resonance potential generator according to claim 3, it is characterised in that: the exciting transformer (3)
Peak value measuring gauge (10) are connected with by conducting wire between high-voltage bleeder high-voltage arm (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820629875.1U CN208224331U (en) | 2018-04-28 | 2018-04-28 | A kind of wideband resonance potential generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820629875.1U CN208224331U (en) | 2018-04-28 | 2018-04-28 | A kind of wideband resonance potential generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208224331U true CN208224331U (en) | 2018-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820629875.1U Expired - Fee Related CN208224331U (en) | 2018-04-28 | 2018-04-28 | A kind of wideband resonance potential generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220886A (en) * | 2019-11-29 | 2020-06-02 | 山东送变电工程有限公司 | Novel assembled series resonance alternating current voltage withstand equipment |
-
2018
- 2018-04-28 CN CN201820629875.1U patent/CN208224331U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220886A (en) * | 2019-11-29 | 2020-06-02 | 山东送变电工程有限公司 | Novel assembled series resonance alternating current voltage withstand equipment |
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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: 20181211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |