CN203011964U - Resonance test device - Google Patents
Resonance test device Download PDFInfo
- Publication number
- CN203011964U CN203011964U CN 201220603870 CN201220603870U CN203011964U CN 203011964 U CN203011964 U CN 203011964U CN 201220603870 CN201220603870 CN 201220603870 CN 201220603870 U CN201220603870 U CN 201220603870U CN 203011964 U CN203011964 U CN 203011964U
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- Prior art keywords
- resonance
- utility
- model
- frequency power
- power supply
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- 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.)
- Expired - Fee Related
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- 230000003321 amplification Effects 0.000 claims abstract description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a resonance test device, which is especially suitable for high-voltage equipment test. At present, it is required to connect multiple reactors in parallel/series to satisfy resonance conditions of high-voltage on-site insulation test for electric equipment, wherein equipment arrangement is tedious, wiring is complex, occupied area is large, and interference is increased. The utility model discloses a resonance test device composed of a variable frequency power supply, an excitation transformer, a resonance reactor and an attenuator; and the resonance device is characterized in that the variable frequency power supply employs a triode parallel-connection amplification manner, and comprises a contactor, a rectification module, a capacitance module, an inversion module, a controller, and the like. According to the utility model, the variable frequency power supply employs the triode parallel-connection amplification manner, so that requirement for the power supply is low, adjustment and transportation are convenient, and miniaturization of the whole device can be realized; and when breakdown and other faults occur in a test sample, the resonance test device of the utility model can be ensured to work stably.
Description
Technical field
The utility model relates to a kind of test unit, is specially adapted to the high voltage installation test.
Background technology
When electric device equipment carries out the on-the-spot Insulation Test of high voltage, often use the mode of parallel connection or series resonance to provide test required high voltage.In order to satisfy condition of resonance, need numerous reactor arrangement connection in series-parallel, the equipment tissue is put loaded down with trivial details, and wiring is complicated, and floor area is large, has increased interference.At present, frequency conversion resonance experiment system commonly used generally believes frequency conversion source poor reliability, disturb large, the less employing of reason such as efficient is low.
Summary of the invention
The purpose of this utility model is exactly to address the above problem cheaply, and a kind of resonant experimental device is provided for this reason.
The technical solution of the utility model is a kind of resonant experimental device, is comprised of variable-frequency power sources, exciting transformer, resonance reactor, voltage divider; It is characterized in that being: described variable-frequency power sources adopts triode amplification mode in parallel, comprises contactor, rectification module, capacitance module, inversion module, controller etc.; Described exciting transformer output terminal lightning arrester connected in parallel.
The beneficial effects of the utility model are: 1, variable-frequency power sources adopts triode amplification mode in parallel, and is little to power requirement, easy to adjust, can make whole device realize miniaturization, convenient transportation; 2, when occuring that test specimen punctures or during other faults, can the assurance device steady operation.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model
Accompanying drawing 2 is the structural representation of variable-frequency power sources of the present utility model
In accompanying drawing, 1. variable-frequency power sources, 2. exciting transformer, 3. lightning arrester, 4. resonance reactor, 5. voltage divider, 6. trial target, 7. contactor, 8. rectification module, 9. capacitance module, 10. inversion module, 11. controllers.
Embodiment
With reference to accompanying drawing 1,2, when using the utility model embodiment, three-phase alternating current is crimped onto variable-frequency power sources, the Voltage-output of variable-frequency power sources is received exciting transformer, the exciting transformer output terminal also connects lightning arrester, and the exciting transformer high-pressure side is received resonance reactor, and the exciting transformer low pressure end is received the earth, voltage divider high-pressure side, trial target high-pressure side are received in resonance reactor output, and voltage divider, trial target low pressure end are received respectively the earth.Exchange the 380V power frequency supply, through the adjustable voltage of variable-frequency power sources output 30HZ-1MHZ frequency, send into exciting transformer, boost to 0-8000V, through resonance reactor and trial target, consist of the high pressure main resonant circuit, capacitive divider is pure capacitive, is used for measuring trial voltage.First send into a lower voltage U 1 through exciting transformer to main resonant circuit by variable-frequency power sources, regulate the output frequency of variable-frequency power sources, when frequency satisfies certain condition, circuit namely reaches resonant condition.Can make the voltage that produces several U1 of decupling on trial target this moment under less field voltage, thereby satisfy the test to trial target.When occuring that test specimen punctures or during other faults, lightning arrester can discharge in instantaneous conducting, guarantees not enlarge fault.
In addition to the implementation, the utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation form, all drop on the protection domain of the utility model requirement.
Claims (2)
1. a resonant experimental device, be comprised of variable-frequency power sources, exciting transformer, resonance reactor, voltage divider; It is characterized in that being: described variable-frequency power sources adopts triode amplification mode in parallel, comprises contactor, rectification module, capacitance module, inversion module, controller etc.
2. resonant experimental device described according to claim l, is characterized in that being: described exciting transformer output terminal lightning arrester connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603870 CN203011964U (en) | 2012-11-13 | 2012-11-13 | Resonance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603870 CN203011964U (en) | 2012-11-13 | 2012-11-13 | Resonance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011964U true CN203011964U (en) | 2013-06-19 |
Family
ID=48603546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220603870 Expired - Fee Related CN203011964U (en) | 2012-11-13 | 2012-11-13 | Resonance test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111412A (en) * | 2014-06-30 | 2014-10-22 | 国家电网公司 | Protection connection structure for preventing components in variable frequency power cabinet from flashover impact of tested object |
| CN108663566A (en) * | 2017-04-01 | 2018-10-16 | 佛山市顺德区美的电热电器制造有限公司 | The detection device and method of the resonance potential of electromagnetic induction |
-
2012
- 2012-11-13 CN CN 201220603870 patent/CN203011964U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111412A (en) * | 2014-06-30 | 2014-10-22 | 国家电网公司 | Protection connection structure for preventing components in variable frequency power cabinet from flashover impact of tested object |
| CN108663566A (en) * | 2017-04-01 | 2018-10-16 | 佛山市顺德区美的电热电器制造有限公司 | The detection device and method of the resonance potential of electromagnetic induction |
| CN108663566B (en) * | 2017-04-01 | 2020-12-08 | 佛山市顺德区美的电热电器制造有限公司 | Detection device and method for electromagnetic induction resonance voltage |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20171113 |