CN204807663U - Be applied to alternating current -direct current conversion equipment of withstand voltage test - Google Patents
Be applied to alternating current -direct current conversion equipment of withstand voltage test Download PDFInfo
- Publication number
- CN204807663U CN204807663U CN201520513273.6U CN201520513273U CN204807663U CN 204807663 U CN204807663 U CN 204807663U CN 201520513273 U CN201520513273 U CN 201520513273U CN 204807663 U CN204807663 U CN 204807663U
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- voltage
- transformer
- test
- silicon rectifier
- high voltage
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Abstract
The utility model discloses a be applied to alternating current -direct current conversion equipment of withstand voltage test, include: alternating current power supply interface, switch, voltage regulator, step up transformer and silicon stack, alternating current power supply interface, switch, voltage regulator, step up transformer and silicon stack be electric connection in proper order, silicon stack detachably and step up transformer are connected, the voltage regulator is used for changing step up transformer's input voltage, step up transformer is used for rising the alternating voltage of input and output, silicon stack is used for converting the alternating voltage that step up transformer exported into DC voltage and output. Through the utility model discloses an alternating current -direct current conversion equipment can after exchanging output interpolation silicon stack, can conveniently carry out direct current high -voltage insulation test to carried out the ac voltage withstand test test by test equipment, and silicon stack's connection is very convenient with the dismantlement moreover, has both had convenient advantage, also can save alternating current -direct current high -voltage insulation test's cost.
Description
Technical field
The utility model relates to voltage-withstand test field, is specifically related to a kind of DC-AC conversion device being applied to dielectric voltage withstand test.
Background technology
Dielectric voltage withstand test is that inspection electric device, electrical equipment, electric wiring and electrical safety apparatus etc. bear one of main method of superpotential ability, can examine the dielectric level of electrical equipment, find the insulation defect of test specimen.Dielectric voltage withstand test point power frequency AC voltage withstand test and DC voltage withstand test two kinds.Industrial frequency AC withstand voltage test can find more dangerous centrality defect effectively.It is qualification insulation of electrical installation intensity the most direct method, for judging that can electrical equipment put into operation and have decisive meaning, is also the important means ensureing apparatus insulated level, avoid generation insulation fault.DC voltage withstand test compared with industrial frequency AC withstand voltage test, have testing equipment light, to insulation harm the advantage such as little and local defect being easy to discovering device.DC voltage withstand test voltage is higher, has special effect, can carry out with leakage current test simultaneously some local defect of discovery insulation.
Industrial frequency AC withstand voltage test and DC experiment can find insulation defect effectively, respectively have feature, if desired, should carry out simultaneously, mutually supplement.In conventional test, be generally by test units such as DC generators, DC voltage withstand test is carried out to test product.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of DC-AC conversion device being applied to dielectric voltage withstand test, can switch alternating current-direct current easily and export with the ac voltage withstanding meeting tested equipment test and DC break down voltage test.
For solving the problem, the technical scheme that the utility model adopts is as follows:
A kind of DC-AC conversion device being applied to dielectric voltage withstand test, comprise: AC power interface, power switch, pressure regulator, step-up transformer and high voltage silicon rectifier stack, described AC power interface, power switch, pressure regulator, step-up transformer and high voltage silicon rectifier stack are electrically connected successively, and described high voltage silicon rectifier stack is removably connected with step-up transformer; Described pressure regulator is for changing the input voltage of step-up transformer, and described step-up transformer is used for being raised by the alternating voltage of input and exporting, and the alternating voltage that described high voltage silicon rectifier stack is used for step-up transformer to export is converted to DC voltage and exports.
Preferably, the output terminal of described pressure regulator is connected with the primary coil of step-up transformer, one end of the secondary coil of step-up transformer is connected with the positive terminal of high voltage silicon rectifier stack, the other end ground connection of the secondary coil of step-up transformer, and the negative pole end of high voltage silicon rectifier stack is the DC output end of high voltage silicon rectifier stack; Wherein one end of the secondary coil of step-up transformer and the positive terminal of high voltage silicon rectifier stack are for removably connecting.
Preferably, also comprise voltage table, described voltage table is connected with the parallel connection of primary windings of step-up transformer.
Compared to existing technology, the beneficial effects of the utility model are: by DC-AC conversion device of the present utility model, ac voltage withstanding test can be carried out to tested equipment, after adding high voltage silicon rectifier stack at ac output end, DC break down voltage test can be carried out easily, and the connection of high voltage silicon rectifier stack and dismantle very convenient, both there is advantage easily, also can save the cost of alternating current-direct current voltage-withstand test.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of DC-AC conversion device of the present utility model.
Fig. 2 is the electrical block diagram of DC-AC conversion device of the present utility model.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
With reference to figure 1 and Fig. 2, a kind of DC-AC conversion device being applied to dielectric voltage withstand test, comprise: AC power interface 1, power switch 2, pressure regulator 3, step-up transformer 4 and high voltage silicon rectifier stack 5, AC power interface 1 is connected with AC power, AC power interface 1 is connected with the input end of pressure regulator by power switch 2, power switch 2 is specially a power knife switch, for connecting AC power and cutting off AC power, when connecting AC power, pressure regulator 3 is made to export the alternating voltage of different size by regulating pressure regulator 3, user can test needs according to reality and regulate, the output terminal of pressure regulator 3 is connected with the primary coil of step-up transformer 4.Wherein, the primary coil of step-up transformer 4 is connected with a voltage table 6, then can know the voltage of the primary coil inputing to step-up transformer 4 intuitively.Step-up transformer 4 is the transformer of preset parameter, one end of its secondary coil is designed to a transformation output interface, when needs carry out ac voltage withstanding test, then by this transformation output interface and tested equipment connection, when needs carry out DC break down voltage test, then be connected with high voltage silicon rectifier stack 5 by this transformation output interface, the other end ground connection of secondary coil.Concrete, high voltage silicon rectifier stack 5 is the devices be composed in series by multiple kenotron, transformation output interface is connected with the positive pole of high voltage silicon rectifier stack 5, the negative pole of high voltage silicon rectifier stack 5 is DC output end, a positive high direct voltage can be exported, with tested equipment connection, then can reach the DC break down voltage test purpose of this tested equipment.It should be noted that, when carrying out DC break down voltage test by configuration high voltage silicon rectifier stack, discharge operation must be carried out to tested equipment after test terminates.
By DC-AC conversion device of the present utility model, ac voltage withstanding test can be carried out to tested equipment, after adding high voltage silicon rectifier stack at ac output end, DC break down voltage test can be carried out easily, and the connection of high voltage silicon rectifier stack and dismantle very convenient, both there is advantage easily, also can save the cost of alternating current-direct current voltage-withstand test.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the utility model claim.
Claims (3)
1. one kind is applied to the DC-AC conversion device of dielectric voltage withstand test, it is characterized in that, comprise: AC power interface, power switch, pressure regulator, step-up transformer and high voltage silicon rectifier stack, described AC power interface, power switch, pressure regulator, step-up transformer and high voltage silicon rectifier stack are electrically connected successively, and described high voltage silicon rectifier stack is removably connected with step-up transformer; Described pressure regulator is for changing the input voltage of step-up transformer, and described step-up transformer is used for being raised by the alternating voltage of input and exporting, and the alternating voltage that described high voltage silicon rectifier stack is used for step-up transformer to export is converted to DC voltage and exports.
2. the DC-AC conversion device being applied to dielectric voltage withstand test according to claim 1, it is characterized in that, the output terminal of described pressure regulator is connected with the primary coil of step-up transformer, one end of the secondary coil of step-up transformer is connected with the positive terminal of high voltage silicon rectifier stack, the other end ground connection of the secondary coil of step-up transformer, the negative pole end of high voltage silicon rectifier stack is the DC output end of high voltage silicon rectifier stack; Wherein one end of the secondary coil of step-up transformer and the positive terminal of high voltage silicon rectifier stack are for removably connecting.
3. the DC-AC conversion device being applied to dielectric voltage withstand test according to claim 1, it is characterized in that, also comprise voltage table, described voltage table is connected with the parallel connection of primary windings of step-up transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520513273.6U CN204807663U (en) | 2015-07-15 | 2015-07-15 | Be applied to alternating current -direct current conversion equipment of withstand voltage test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520513273.6U CN204807663U (en) | 2015-07-15 | 2015-07-15 | Be applied to alternating current -direct current conversion equipment of withstand voltage test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204807663U true CN204807663U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520513273.6U Expired - Fee Related CN204807663U (en) | 2015-07-15 | 2015-07-15 | Be applied to alternating current -direct current conversion equipment of withstand voltage test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204807663U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375070A (en) * | 2018-10-29 | 2019-02-22 | 河南朗博校准检测有限公司 | A kind of pressure resistance insulation tester |
| CN109782138A (en) * | 2018-12-21 | 2019-05-21 | 西安交通大学 | High altitude localities electrical apparatus external insulation characteristic moves experimental provision |
| CN110231555A (en) * | 2019-07-16 | 2019-09-13 | 显利(珠海)造船有限公司 | Pressure-resistant Insulation Test control circuit and pressure-resistant Insulation Test equipment |
-
2015
- 2015-07-15 CN CN201520513273.6U patent/CN204807663U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375070A (en) * | 2018-10-29 | 2019-02-22 | 河南朗博校准检测有限公司 | A kind of pressure resistance insulation tester |
| CN109782138A (en) * | 2018-12-21 | 2019-05-21 | 西安交通大学 | High altitude localities electrical apparatus external insulation characteristic moves experimental provision |
| CN110231555A (en) * | 2019-07-16 | 2019-09-13 | 显利(珠海)造船有限公司 | Pressure-resistant Insulation Test control circuit and pressure-resistant Insulation Test equipment |
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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: 20151125 Termination date: 20180715 |