CN202693739U - Series resonance voltage withstand test device - Google Patents
Series resonance voltage withstand test device Download PDFInfo
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- CN202693739U CN202693739U CN 201220290138 CN201220290138U CN202693739U CN 202693739 U CN202693739 U CN 202693739U CN 201220290138 CN201220290138 CN 201220290138 CN 201220290138 U CN201220290138 U CN 201220290138U CN 202693739 U CN202693739 U CN 202693739U
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Abstract
The utility model discloses a series resonance voltage withstand test device. A capacitor and a reactor of a test object are in series resonance connection, a high-voltage bleeder is in parallel connection with the test object, and the output of a variable-frequency power supply is coupled to a series resonance circuit by a driver transformer. A lower output voltage of the variable-frequency power supply can produce a higher testing voltage on the test object by circuit resonance.
Description
Technical field
The utility model relates to a kind of electric force test device, relates in particular to a kind of test unit that utilizes the circuit resonance principle to obtain the required high pressure of test.
Background technology
At present, because general test specimen electric capacity is larger, perhaps trial voltage is had relatively high expectations, power supply capacity to test unit also has higher requirement accordingly, often the single-piece volume is large for traditional industrial frequency withstand voltage device, and Heavy Weight is not easy to onsite moving, and being not easy to combination in any, dirigibility is relatively poor; And existing improved series resonance test device generally is to reach system resonance by the electric capacity in the modifier or inductance, but is not easy when changing electric capacity so that the electric capacity continuous tuning, and meeting when changing inductance is so that voltage waveform occurs lopsided.
Summary of the invention
Large in order to overcome existing industrial frequency withstand voltage device single-piece volume, be not easy to combination in any, the deficiency that dirigibility is relatively poor, the utility model provides a kind of series resonance pressure test apparatus, this series resonance pressure test apparatus adopts the variable ratio frequency changer power supply, make the loop that series resonance occur, to obtain close to the high-tension testing equipment of power frequency.
The technical scheme that its technical matters that solves the utility model adopts is: the isolation filter formula power supply of series resonance pressure test apparatus links to each other with the variable-frequency power sources that is output as square wave, the output terminal of variable-frequency power sources links to each other with the input end of driver transformer, the output terminal of driver transformer links to each other with the input end of high voltage reactor, the output terminal of high voltage reactor links to each other with the input end of high-voltage capacitor, high-voltage capacitor is composed in series by high-voltage arm and low-voltage arm, the low-voltage arm ground connection of high-voltage capacitor, high-voltage arm is isolated the high-voltage bleeder of sampling with the conductor line between the low-voltage arm with optical fiber and is linked to each other, and high-voltage bleeder links to each other with variable-frequency power sources.
A kind of prioritization scheme of such scheme is: high voltage reactor is composed in series by a plurality of reactors.
During test, test product is in parallel with high-voltage capacitor, make the loop that series resonance occur by the output frequency of regulating variable-frequency power sources, regulating the variable-frequency power sources output voltage under the condition of loop resonance makes test product voltage reach trial value again, because the resonance in loop, the output voltage that variable-frequency power sources is less just can produce higher trial voltage at test product.
The beneficial effects of the utility model are that the output voltage that variable-frequency power sources is less just can be at the higher trial voltage of test product generation by the resonance in loop; Interference when having adopted the power supply of isolation filter formula to help in the process of boosting power supply to be subject to external motor or the work of other high-power source; Variable-frequency power sources is output as square wave, the output power of power supply that also topic is high greatly; High-voltage bleeder adopts optical fiber isolation sampling, and variable-frequency power sources can effectively be protected when test product is breakdown.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is fundamental diagram of the present utility model.
Embodiment
In Fig. 1, the isolation filter formula power supply V of series resonance pressure test apparatus links to each other with the variable-frequency power sources VF that is output as square wave, the output terminal of variable-frequency power sources VF links to each other with the input end of driver transformer T1, the output terminal of driver transformer T1 links to each other with the input end of high voltage reactor L1, the output terminal of high voltage reactor L1 links to each other with the input end of high voltage reactor L2, the output terminal of high voltage reactor L2 links to each other with the high-voltage arm C1 of high-voltage capacitor, high-voltage arm C1 connects with low-voltage arm C2, low-voltage arm C2 ground connection, high-voltage arm C1 isolates the high-voltage bleeder of sampling with the conductor line between the low-voltage arm C2 with optical fiber and links to each other, high-voltage bleeder links to each other with variable-frequency power sources VF, the input end of test product CX links to each other with high-voltage arm C1, and output terminal links to each other with low-voltage arm C2.
Claims (2)
1. series resonance pressure test apparatus, it is characterized in that: isolation filter formula power supply links to each other with the variable-frequency power sources that is output as square wave, the output terminal of variable-frequency power sources links to each other with the input end of driver transformer, the output terminal of driver transformer links to each other with the input end of high voltage reactor, the output terminal of high voltage reactor links to each other with the input end of high-voltage capacitor, high-voltage capacitor is composed in series by high-voltage arm and low-voltage arm, the low-voltage arm ground connection of high-voltage capacitor, high-voltage arm is isolated the high-voltage bleeder of sampling with the conductor line between the low-voltage arm with optical fiber and is linked to each other, and high-voltage bleeder links to each other with variable-frequency power sources.
2. series resonance pressure test apparatus according to claim 1, it is characterized in that: high voltage reactor is composed in series by a plurality of reactors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220290138 CN202693739U (en) | 2012-06-19 | 2012-06-19 | Series resonance voltage withstand test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220290138 CN202693739U (en) | 2012-06-19 | 2012-06-19 | Series resonance voltage withstand test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202693739U true CN202693739U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220290138 Expired - Fee Related CN202693739U (en) | 2012-06-19 | 2012-06-19 | Series resonance voltage withstand test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202693739U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735997A (en) * | 2012-06-19 | 2012-10-17 | 扬州市双宝电力设备有限公司 | Series resonance withstanding voltage tester |
| CN103543305A (en) * | 2013-10-12 | 2014-01-29 | 西安交通大学 | Low damping alternating-current high-voltage generator for detecting power equipment local discharge |
| CN103675624A (en) * | 2013-12-13 | 2014-03-26 | 中国西电电气股份有限公司 | Power-frequency voltage testing device and testing method of lightning arrester |
| CN104076252A (en) * | 2013-03-29 | 2014-10-01 | 致茂电子(苏州)有限公司 | Electrical performance test device and method |
| CN104849638A (en) * | 2015-06-09 | 2015-08-19 | 国电大渡河检修安装有限公司 | Series-resonance withstand voltage testing device of frequency modulation and inductance adjustment type, and design method therefor |
| CN106646155A (en) * | 2016-11-24 | 2017-05-10 | 云南电网有限责任公司电力科学研究院 | Small-capacity 35kV dry type hollow parallel reactor interturn voltage-withstand test circuit |
-
2012
- 2012-06-19 CN CN 201220290138 patent/CN202693739U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735997A (en) * | 2012-06-19 | 2012-10-17 | 扬州市双宝电力设备有限公司 | Series resonance withstanding voltage tester |
| CN104076252A (en) * | 2013-03-29 | 2014-10-01 | 致茂电子(苏州)有限公司 | Electrical performance test device and method |
| CN103543305A (en) * | 2013-10-12 | 2014-01-29 | 西安交通大学 | Low damping alternating-current high-voltage generator for detecting power equipment local discharge |
| CN103543305B (en) * | 2013-10-12 | 2015-11-11 | 西安交通大学 | A kind of power equipment Partial Discharge Detection underdamping ac high voltage generator |
| CN103675624A (en) * | 2013-12-13 | 2014-03-26 | 中国西电电气股份有限公司 | Power-frequency voltage testing device and testing method of lightning arrester |
| CN103675624B (en) * | 2013-12-13 | 2016-07-06 | 中国西电电气股份有限公司 | A kind of spark gap working-frequency voltage test device and test method |
| CN104849638A (en) * | 2015-06-09 | 2015-08-19 | 国电大渡河检修安装有限公司 | Series-resonance withstand voltage testing device of frequency modulation and inductance adjustment type, and design method therefor |
| CN104849638B (en) * | 2015-06-09 | 2017-12-08 | 国电大渡河检修安装有限公司 | Frequency modulation induction-regulated series resonance pressure test apparatus and its design method |
| CN106646155A (en) * | 2016-11-24 | 2017-05-10 | 云南电网有限责任公司电力科学研究院 | Small-capacity 35kV dry type hollow parallel reactor interturn voltage-withstand test circuit |
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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: 20130123 Termination date: 20170619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |