CN202013415U - Novel current transformer test-bed - Google Patents
Novel current transformer test-bed Download PDFInfo
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- CN202013415U CN202013415U CN2011201071928U CN201120107192U CN202013415U CN 202013415 U CN202013415 U CN 202013415U CN 2011201071928 U CN2011201071928 U CN 2011201071928U CN 201120107192 U CN201120107192 U CN 201120107192U CN 202013415 U CN202013415 U CN 202013415U
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- current transformer
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- transformer
- bed
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- 238000012360 testing method Methods 0.000 claims abstract description 17
- 230000003137 locomotive effect Effects 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
A novel current transformer test-bed comprises an electronic voltage regulator connected in a city electricity circuit, the output end of the electronic voltage regulator is in series with a standard up-flow transformer and a tested current transformer, and the standard up-flow transformer and the tested current transformer are connected with a transformer calibrator. The novel current transformer test-bed of the utility model combines the special electronic voltage regulator, the self-up-flow standard current transformer, an electronic control switching circuit, etc. together to just finish the error detections of the parameters, such as a rate difference, an angular difference, etc. of the current transformer of a railway power locomotive or an EMU, and by using the novel current transformer test-bed, the quick test functions of auto-up-flow and boost, auto-searching point and auto-returning to zero of the system can be realized.
Description
Technical field
The utility model relates to the New type of current mutual inductor testing table that the verification of a kind of railway electric locomotive (motor train unit) current transformer Performance Detection is used, and specifically is meant a kind of New type of current mutual inductor testing table of the electronic pressure controller based on the SPWM modulation technique.
Background technology
Railway locomotive, the motor train unit Current Transformer is a vitals, it is the important information source that electric locomotive (motor train unit) operational factor is adjusted, need regularly just can guarantee electric locomotive (motor train unit) safe and highly efficient operation to its check, current each maintenance base maintenance task amount be doubled and redoubled (being original 7 to 10 times), and each mutual inductor need to its nominal parameter 20% to 120% between six parameter points carry out detection check, the current transformer quantity that need check every day is very big, must improve technical scheme, raise the efficiency just and can finish the maintenance task.At present, the current transformer testing table that the China railways system generally is equipped with, low, the inconvenient operation of its detection efficiency, technological means is backward relatively.Therefore, development is necessary based on the New type of current mutual inductor testing table of electronic pressure controller technology.
The utility model content
The purpose of this utility model provides a kind of New type of current mutual inductor testing table, solves the current transformer testing table that present China railways system generally is equipped with, and its detection efficiency is low, the problem of inconvenient operation.
The purpose of this utility model is achieved through the following technical solutions.
New type of current mutual inductor testing table, comprise the electronic pressure controller that is connected in the mains circuit, described electronic pressure controller output terminal series connection standard up-flow mutual inductor and tested current transformer, described standard up-flow mutual inductor is connected with mutual-inductor tester with tested current transformer.Be connected the current loading case between described tested current transformer and the mutual-inductor tester.
The utility model is a kind ofly to utilize extraordinary electronic type pressure regulator, combine from up-flow standard current transformer, Electronic Control commutation circuit etc., just in time finish ratio difference, the isoparametric error-detecting of angular displacement value of railway electric locomotive or motor train unit current transformer, the automatic up-flow of feasible system boosts, looks for automatically point, self-zeroing quick test function.The electronic type pressure regulator that the technical scheme that the utility model proposes can be made on request is as topworks.By a cover Electronic Control commutation circuit and a software for calculation, satisfy the test of the current transformer of various different models.
Description of drawings
With embodiment the utility model is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the structural drawing of New type of current mutual inductor testing table described in the utility model, and what adopt among the figure is tested current transformer;
Embodiment
As shown in Figure 1, New type of current mutual inductor testing table described in the utility model, comprise the electronic pressure controller 1 that is connected in the mains circuit, described electronic pressure controller 1 output terminal series connection standard boost up-flow mutual inductor 2 and tested current transformer 4, the described standard up-flow mutual inductor 2 that boosts is connected with mutual-inductor tester 5 with tested current transformer 4.Be connected current loading case 7 between described tested current transformer 4 and the mutual-inductor tester 5.
The utility model is a kind ofly to utilize extraordinary electronic type pressure regulator, combine from up-flow standard current transformer, Electronic Control commutation circuit etc., just in time finish ratio difference, the isoparametric error-detecting of angular displacement value of railway electric locomotive or motor train unit current transformer, the automatic up-flow of feasible system boosts, looks for automatically point, self-zeroing quick test function.The electronic type pressure regulator that the technical scheme that the utility model proposes can be made on request is as topworks.By a cover Electronic Control commutation circuit and a software for calculation, satisfy the test of the current transformer of various different models.
Claims (2)
1. New type of current mutual inductor testing table, it is characterized in that, comprise the electronic pressure controller that is connected in the mains circuit, described electronic pressure controller output terminal series connection standard up-flow mutual inductor and tested current transformer, described standard up-flow mutual inductor is connected with mutual-inductor tester with tested current transformer.
2. New type of current mutual inductor testing table according to claim 1 is characterized in that, is connected the current loading case between described tested current transformer and the mutual-inductor tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201071928U CN202013415U (en) | 2011-04-13 | 2011-04-13 | Novel current transformer test-bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201071928U CN202013415U (en) | 2011-04-13 | 2011-04-13 | Novel current transformer test-bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013415U true CN202013415U (en) | 2011-10-19 |
Family
ID=44784032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201071928U Expired - Lifetime CN202013415U (en) | 2011-04-13 | 2011-04-13 | Novel current transformer test-bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202013415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508190A (en) * | 2011-11-03 | 2012-06-20 | 四川电力科学研究院 | Method for testing error influence quantity to high-voltage three-phase current transformer from high-voltage leakage current |
| CN105044648A (en) * | 2015-08-13 | 2015-11-11 | 国家电网公司 | AVR single-chip microcomputer current transformer secondary anti-open-circuit system |
-
2011
- 2011-04-13 CN CN2011201071928U patent/CN202013415U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508190A (en) * | 2011-11-03 | 2012-06-20 | 四川电力科学研究院 | Method for testing error influence quantity to high-voltage three-phase current transformer from high-voltage leakage current |
| CN105044648A (en) * | 2015-08-13 | 2015-11-11 | 国家电网公司 | AVR single-chip microcomputer current transformer secondary anti-open-circuit system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |
|
| CX01 | Expiry of patent term |