CN202693638U - Current generating source for high-voltage instrument portable site inspection device - Google Patents
Current generating source for high-voltage instrument portable site inspection device Download PDFInfo
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- CN202693638U CN202693638U CN 201220239814 CN201220239814U CN202693638U CN 202693638 U CN202693638 U CN 202693638U CN 201220239814 CN201220239814 CN 201220239814 CN 201220239814 U CN201220239814 U CN 201220239814U CN 202693638 U CN202693638 U CN 202693638U
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Abstract
The utility model relates to a current generating source for a high-voltage instrument portable site inspection device, which includes a signal source unit, a current power amplifier unit and a strong current generator, wherein the signal source unit is connected with the current power amplifier unit; the current power amplifier unit is connected with the strong current generator; the current power amplifier unit includes a pre-arranged driving unit, a power amplifying unit and a signal feedback unit; the signal source unit is connected with the pre-arranged driving unit; the pre-arranged driving unit is connected with the power amplifying unit and the signal feedback unit respectively; the power amplifying unit is connected with the signal feedback unit; and the strong current generator is connected with the power amplifying unit. The current generating source has a reasonable structural design, reduces the size and weight of the entire current generating source and is portable under the premise of guaranteeing the performance parameters.
Description
Technical field
The utility model relates to a kind of electric current generating source for high tension instrument portable field verifying attachment.
Background technology
Because the conventional high-tension measuring apparatus need to be torn open back and tests to the laboratory from outdoor, can cause labour's waste, the cost raising.Three-phase high-voltage instrument portable field verifying attachment is a kind of convenient device for field test.Three-phase high-voltage instrument portable field verifying attachment all need use the electric current generating source, and the general volume weight of electric current generating source is all larger, thereby can have influence on the volume of verifying attachment, so that carry inconvenience.
The utility model content
Technical problem to be solved in the utility model is to overcome existing above-mentioned deficiency in the prior art, and provides a kind of reasonable in design, and is simple in structure, the electric current generating source that is used for high tension instrument portable field verifying attachment that volume is little.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of electric current generating source for high tension instrument portable field verifying attachment, it is characterized in that: it comprises the signal source unit, current amplification unit and current lifting device, the signal source unit is connected with the current amplification unit, and the current amplification unit is connected with current lifting device; Described current amplification unit comprises pre-driver unit, power amplification unit and signal feedback unit, the signal source unit is connected with the pre-driver unit, the pre-driver unit is connected with the signal feedback unit with power amplification unit respectively, power amplification unit is connected with the signal feedback unit, and current lifting device is connected with power amplification unit.
One secondary input end wire turn of current lifting device described in the utility model is 280 to 15 with the secondary output line turn ratio.
Signal source described in the utility model unit adopts single-chip microcomputer to generate the three-phase current digital signal, can control flexibly amplitude and the phase place of each phase.
The utility model compared with prior art has following positive effect: reasonable in design in the situation that the guaranteed performance parameter, so that the volume of whole electric current generating source, weight diminish, is easy to carry.
Description of drawings
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is the structural representation of the utility model current lifting device.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment.
Embodiment:
Referring to Fig. 1, the present embodiment comprises signal source unit 1, current amplification unit 2 and current lifting device 3, and signal source unit 1 is connected with current amplification unit 2, and current amplification unit 2 is connected with current lifting device 3; Described current amplification unit 2 comprises pre-driver unit 4, power amplification unit 5 and signal feedback unit 6, signal source unit 1 is connected with pre-driver unit 4, are connected with the signal feedback unit with power amplification unit 5 respectively and are connected in pre-driver unit 4, power amplification unit 5 is connected with signal feedback unit 6, and current lifting device 3 is connected with power amplification unit 5.
Referring to Fig. 2, in the present embodiment, a secondary input end wire turn 31 of current lifting device 3 and secondary output terminal wire turn 32 are than being 280 to 15.
In the present embodiment, signal source unit 1 adopts single-chip microcomputer to generate the three-phase current digital signal, can control flexibly amplitude and the phase place of each phase, uses 16 high-performance D/A chips, converts digital signal to high-precision analog signal output to current amplification unit 2.
In the present embodiment, pre-driver unit 4, power amplification unit 5 pass through DC power supply.
The principle of work of the present embodiment is: signal source unit 1 produces an adjustable signal and outputs to current amplification unit 2, signal is amplified a little by the pre-driver unit 4 on the current amplification unit 2 first, then outputing to power amplification unit 5 amplifies and does distortion and process, signal after will amplifying again feeds back to pre-driver unit 4 by signal feedback unit 6 and superposes with original signal, outputs at last current lifting device 3 and carries out up-flow.
In addition, need to prove, the specific embodiment described in this instructions, as long as the undeclared concrete shape of its part and size, then this part can be any shape and size that adapt with its structure; Simultaneously, the part title of getting also can be different.Allly conceive equivalence or the simple change that described structure, feature and principle are done according to the utility model patent, be included in the protection domain of the utility model patent.
Claims (3)
1. electric current generating source that is used for high tension instrument portable field verifying attachment, it is characterized in that: it comprises the signal source unit, current amplification unit and current lifting device, the signal source unit is connected with the current amplification unit, and the current amplification unit is connected with current lifting device; Described current amplification unit comprises pre-driver unit, power amplification unit and signal feedback unit, the signal source unit is connected with the pre-driver unit, the pre-driver unit is connected with the signal feedback unit with power amplification unit respectively, power amplification unit is connected with the signal feedback unit, and current lifting device is connected with power amplification unit.
2. the electric current generating source for high tension instrument portable field verifying attachment according to claim 1, it is characterized in that: a secondary input end wire turn of described current lifting device is 280 to 15 with the secondary output line turn ratio.
3. the electric current generating source for high tension instrument portable field verifying attachment according to claim 1 and 2 is characterized in that: described signal source unit employing single-chip microcomputer generation three-phase current digital signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220239814 CN202693638U (en) | 2012-05-25 | 2012-05-25 | Current generating source for high-voltage instrument portable site inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220239814 CN202693638U (en) | 2012-05-25 | 2012-05-25 | Current generating source for high-voltage instrument portable site inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202693638U true CN202693638U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220239814 Expired - Fee Related CN202693638U (en) | 2012-05-25 | 2012-05-25 | Current generating source for high-voltage instrument portable site inspection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202693638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176006A (en) * | 2013-03-13 | 2013-06-26 | 江苏省电力公司电力科学研究院 | Arbitrary-waveform heavy current generator based on power amplifiers in parallel |
-
2012
- 2012-05-25 CN CN 201220239814 patent/CN202693638U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176006A (en) * | 2013-03-13 | 2013-06-26 | 江苏省电力公司电力科学研究院 | Arbitrary-waveform heavy current generator based on power amplifiers in parallel |
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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: 20150525 |
|
| EXPY | Termination of patent right or utility model |