CN204389590U - A kind of phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance - Google Patents
A kind of phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance Download PDFInfo
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- CN204389590U CN204389590U CN201520005992.7U CN201520005992U CN204389590U CN 204389590 U CN204389590 U CN 204389590U CN 201520005992 U CN201520005992 U CN 201520005992U CN 204389590 U CN204389590 U CN 204389590U
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Abstract
The utility model discloses a kind of phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance, comprises experiment power supply, rectification module, filtration module, power amplifier module, inversion module, test signal output module, winding information storage module, phase place calling module, phase identification module, Phase-switching switch and notching relay group.The utility model can regulate the output of corresponding test signal automatically according to the winding phases information recognized, and there is easy to use, practical, that work efficiency is high feature, automatic switchover that is single-phase to Transformer Winding and three-phase shortcircuit impedance can be realized and detect.
Description
Technical field
The utility model relates to fault diagnosis technical field, relates to a kind of phase place automatic switching control equipment in particular, and it can be used for realizing, and Transformer Winding is single-phase to be detected with the automatic switchover of three-phase shortcircuit impedance.
Background technology
Low-voltage short-circuit impedance method of testing is one of main method of carrying out deformation of transformer winding fault detect, at present widespread use at home and abroad.But, the existing equipment based on low-voltage short circuit impedance method Cleaning Principle, when carrying out Transformer Winding short-circuit impedance and detecting, owing to lacking effective Phase Tracking switch means, general only can the single-phase short circuit resistance value of measuring transformer winding centering, three-phase shortcircuit resistance value is obtained in the mode calculated again by corresponding reduction formula, but not adopt the mode directly measured to obtain the short-circuit impedance value of three-phase windings, there is the problem that error is large, accuracy is low in the result of calculation obtained like this, is unfavorable for short-circuit impedance value and name plate rating to carry out longitudinal comparison.
In view of this, the above-mentioned shortcoming that the present inventor also exists for current transformer winding low-voltage short-circuit impedance checkout equipment is furtherd investigate, and then has this case to produce.
Utility model content
The purpose of this utility model is to provide a kind of phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance, and it can realize automatic switchover that is single-phase to Transformer Winding and three-phase shortcircuit impedance and detect.
In order to reach above-mentioned purpose, solution of the present utility model is:
For detecting a phase place automatic switching control equipment for Transformer Winding short-circuit impedance, it comprises experiment power supply, rectification module, filtration module, power amplifier module, inversion module, test signal output module, winding information storage module, phase place calling module, phase identification module, Phase-switching switch and notching relay group, the output terminal of experiment power supply successively with rectification module, filtration module, power amplifier module, inversion module is connected with test signal output module, the output terminal of winding information storage module successively with phase place calling module, phase identification module, Phase-switching switch is connected with notching relay group, the output terminal of notching relay group is connected to the control end of test signal output module, test signal output module is subject to the acting in conjunction of notching relay group and inversion module, thus the regulation output test signal corresponding with Transformer Winding phase place being applied to successively on the corresponding winding of transformer to be measured, finally realize that transformer to be measured is single-phase to be detected with the automatic switchover of three-phase windings short-circuit impedance.
Further, this Phase-switching switch is made up of A phase winding switch, B phase winding switch, C phase winding switch, this notching relay group is made up of the first relay, the second relay, the 3rd relay, A phase winding switch in this Phase-switching switch, B phase winding switch, C phase winding switch are connected with the first relay in this notching relay group, the second relay, the 3rd relay one_to_one corresponding respectively, for realizing the switching output of A phase, B phase, C phase winding phase signal.
After adopting said structure, a kind of phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance that the utility model relates to, the ac test signal that its experiment power supply provides delivers to the input end of test signal output module after rectification module, filtration module, power amplifier module and inversion module process, simultaneously, phase place calling module calls the winding type information stored in winding information storage module, carry out, after identifying processing, winding phases information is sent into Phase-switching switch input terminal through phase identification module, after corresponding winding phases switch is closed, makes the action of notching relay group and exports corresponding enable signal, enable signal acts on test signal output module afterwards, the test signal corresponding with Transformer Winding phase place with regulation output is also applied in phase windings corresponding to transformer to be measured successively, thus realize that transformer to be measured is single-phase to be detected with the automatic switchover of three-phase windings short-circuit impedance.
Compared with prior art, phase place automatic switching control equipment involved by the utility model, automatically the output of corresponding test signal can be regulated according to the winding phases information recognized, and there is easy to use, practical, that work efficiency is high feature, automatic switchover that is single-phase to Transformer Winding and three-phase shortcircuit impedance can be realized and detect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance that the utility model relates to.
In figure:
Experiment power supply 1 rectification module 2
Filtration module 3 power amplifier module 4
Inversion module 5 test signal output module 6
Winding information storage module 7 phase place calling module 8
Phase identification module 9 Phase-switching switch 10
A phase winding switch 101 B phase winding switch 102
C phase winding switch 103 notching relay group 11
First relay 111 second relay 112
3rd relay 113.
Embodiment
In order to explain the technical solution of the utility model further, below by specific embodiment, the utility model is elaborated.
As shown in Figure 1, relate to a kind of preferred embodiment of the phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance for the utility model shown in it, this phase place automatic switching control equipment comprises experiment power supply 1, rectification module 2, filtration module 3, power amplifier module 4, inversion module 5, test signal output module 6, winding information storage module 7, phase place calling module 8, phase identification module 9, Phase-switching switch 10 and notching relay group 11.
The output terminal of described experiment power supply 1 is connected with rectification module 2, filtration module 3, power amplifier module 4, inversion module 5, test signal output module 6 successively;
The output terminal of described winding information storage module 7 is connected with phase place calling module 8, phase identification module 9, Phase-switching switch 10, notching relay group 11 successively;
This Phase-switching switch 10 comprises A phase winding switch 101, B phase winding switch 102 and C phase winding switch 103, this notching relay group 11 comprises the first relay 111, second relay 112 and the 3rd relay 113, and the A phase winding switch 101 in this Phase-switching switch 10, B phase winding switch 102, C phase winding switch 103 are connected with the first relay 111, second relay 112 in this notching relay group 11, the 3rd relay 113 one_to_one corresponding respectively.
The output terminal of notching relay group 11 is connected to the control end of test signal output module 6, test signal output module 6 is by the acting in conjunction of notching relay group 11 with inversion module 5, thus the regulation output test signal corresponding with Transformer Winding phase place being applied to successively on the corresponding winding of transformer to be measured, finally realize that transformer to be measured is single-phase to be detected with the automatic switchover of three-phase windings short-circuit impedance.
Winding type information to be measured is sent into Phase-switching switch 10 by phase identification module 9 by the utility model, each phase winding switch corresponding in Phase-switching switch 10 afterwards closes successively and closes simultaneously, thus make three relays corresponding in relay group 11 action and action simultaneously successively, thus the automatic switchover of the automatic switchover output and short-circuit impedance that realize the single-phase winding of transformer to be measured and three-phase windings test signal detects.
Particularly, the ac test signal that the experiment power supply 1 of this phase place automatic switching control equipment provides delivers to the input end of test signal output module 6 after the process of rectification module 2, filtration module 3, power amplifier module 4 and inversion module 5.Simultaneously, phase place calling module 8 calls the winding type information stored in winding information storage module 7, carry out through phase identification module 9 input end after identifying processing, winding phases information being sent into Phase-switching switch 10, after corresponding phase winding switch is closed, makes notching relay group 11 action and exports corresponding enable signal.More specifically, carry out A phase after identifying processing through phase identification module 9, B phase, C phase winding information sends into A phase winding switch 101 respectively, B phase winding switch 102, C phase winding switch 103, the first relay 111 after threephase switch closes successively and closes simultaneously in notching relay group 11, second relay 112, 3rd relay 113 is correspondingly action and simultaneously action produce corresponding enable signal successively also, enable signal corresponding afterwards acts on test signal output module 6, thus the regulation output test signal corresponding with Transformer Winding phase place be applied on the corresponding winding of transformer to be measured successively, finally realize that transformer to be measured is single-phase to be detected with the automatic switchover of three-phase windings short-circuit impedance.
Such as, when carrying out single-phase short circuit in winding impedance detection, the switch that phase winding to be measured in Phase-switching switch 10 is corresponding closes, all the other two-phase switches disconnect, and namely when detecting A phase winding, A phase winding switch 101 closes, B phase winding switch 102 and C phase winding switch 103 disconnect, now, device only has A phase winding test signal to export, and B phase winding and C phase winding export without test signal.When carrying out three-phase windings short-circuit impedance and detecting, the A phase winding switch 101 in Phase-switching switch 10, B phase winding switch 102, C phase winding switch 103 are all switched to closure state, and now, device exports three-phase test signal.In addition, preferably, realized, without the need to adjusting manually by switch automatic switchover in the single-phase winding of transformer to be measured and three-phase windings testing process.
In sum, a kind of phase place automatic switching control equipment involved by the utility model, automatically the output of corresponding test signal can be regulated according to the winding phases information recognized, and there is easy to use, practical, that work efficiency is high feature, automatic switchover that is single-phase to Transformer Winding and three-phase shortcircuit impedance can be realized and detect.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.
Claims (2)
1., for detecting a phase place automatic switching control equipment for Transformer Winding short-circuit impedance, it is characterized in that: comprise experiment power supply, rectification module, filtration module, power amplifier module, inversion module, test signal output module, winding information storage module, phase place calling module, phase identification module, Phase-switching switch and notching relay group, the output terminal of experiment power supply successively with rectification module, filtration module, power amplifier module, inversion module is connected with test signal output module, the output terminal of winding information storage module successively with phase place calling module, phase identification module, Phase-switching switch is connected with notching relay group, the output terminal of notching relay group is connected to the control end of test signal output module, test signal output module is subject to the acting in conjunction of notching relay group and inversion module, thus the regulation output test signal corresponding with Transformer Winding phase place being applied to successively on the corresponding winding of transformer to be measured, finally realize that transformer to be measured is single-phase to be detected with the automatic switchover of three-phase windings short-circuit impedance.
2. a kind of phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance as claimed in claim 1, is characterized in that: this Phase-switching switch is made up of A phase winding switch, B phase winding switch, C phase winding switch; This notching relay group is made up of the first relay, the second relay, the 3rd relay; A phase winding switch in this Phase-switching switch, B phase winding switch, C phase winding switch are connected with the first relay in this notching relay group, the second relay, the 3rd relay one_to_one corresponding respectively, for realizing the switching output of A phase, B phase, C phase winding phase signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005992.7U CN204389590U (en) | 2015-01-06 | 2015-01-06 | A kind of phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005992.7U CN204389590U (en) | 2015-01-06 | 2015-01-06 | A kind of phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance |
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| CN204389590U true CN204389590U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520005992.7U Expired - Fee Related CN204389590U (en) | 2015-01-06 | 2015-01-06 | A kind of phase place automatic switching control equipment for detecting Transformer Winding short-circuit impedance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016202673A1 (en) * | 2015-06-15 | 2016-12-22 | Omicron Electronics Gmbh | Switch apparatus, test apparatus and method for operating a switch apparatus for a measuring device for a transformer |
-
2015
- 2015-01-06 CN CN201520005992.7U patent/CN204389590U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016202673A1 (en) * | 2015-06-15 | 2016-12-22 | Omicron Electronics Gmbh | Switch apparatus, test apparatus and method for operating a switch apparatus for a measuring device for a transformer |
| CN107912059A (en) * | 2015-06-15 | 2018-04-13 | 欧米克朗电子有限公司 | The switching device operating method of switching device, test device and transformer measuring device |
| AU2016278682B2 (en) * | 2015-06-15 | 2019-03-14 | Omicron Electronics Gmbh | Switch apparatus, test apparatus and method for operating a switch apparatus for a measuring device for a transformer |
| RU2686447C1 (en) * | 2015-06-15 | 2019-04-25 | Омикрон Электроникс Гмбх | Switching device, test device and method for operation of switching device for measuring device for transformer |
| US10746810B2 (en) | 2015-06-15 | 2020-08-18 | Omicron Electronics Gmbh | Switch apparatus, test apparatus and method for operating a switch apparatus for a measuring device for a transformer |
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| 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: 20150610 Termination date: 20170106 |