CN204694214U - A kind of monitoring device of iron core inside transformer displacement - Google Patents
A kind of monitoring device of iron core inside transformer displacement Download PDFInfo
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- CN204694214U CN204694214U CN201520410999.7U CN201520410999U CN204694214U CN 204694214 U CN204694214 U CN 204694214U CN 201520410999 U CN201520410999 U CN 201520410999U CN 204694214 U CN204694214 U CN 204694214U
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Abstract
The utility model discloses a kind of monitoring device of iron core inside transformer displacement, comprising: for monitoring the displacement transducer of the displacement size of described iron core inside transformer; For monitoring the impact record instrument of described transformer magnitude of vibrations size; The data acquisition unit be connected with institute's displacement sensors and described impact record instrument respectively, the displacement information about described iron core inside transformer displacement size that displacement sensors sends for receiving and the vibration information about described transformer magnitude of vibrations size that described impact record instrument sends, and judge the real misalignment of described iron core inside transformer according to institute's displacement information and described vibration information and generate judged result, described judged result comprises described iron core and is subjected to displacement and is not subjected to displacement with described iron core; It is simple that above-mentioned monitoring device has structure, reasonable in design, easy to use, and monitoring result is accurate, and the advantages such as rate of false alarm is low, for producer has saved a large amount of maintenance costs, produce huge economic benefit.
Description
Technical field
The utility model relates to transformer, specifically provides a kind of monitoring device of iron core inside transformer displacement.
Background technology
Transformer utilizes the principle of electromagnetic induction to change the device of alternating voltage, and main member is primary coil, secondary coil and iron core.Usual transformer is after manufacturer has assembled, be transported to working-yard again, but transformer can due to Uneven road in transportation, choppy, engine vibration, tire be bad, bring to a halt, the reason such as to knock into the back produces and impacts and vibrations, thus cause the displacement in various degree of inside transformer iron core, bring major safety risks in transformer operation afterwards.
In the past, in order to monitor the misalignment of inside transformer iron core, by installing the vibrations produced in the way monitoring transformer transporting of impact record instrument in transformer outside, and the misalignment of iron core is inferred according to the shock value size of record, usually after the acceleration exceeding the 3g that national correlation department specifies, can judge that iron core is subjected to displacement, but, even if after there occurs the impact endurance test shock more than 3g, whether iron core really can therefore displacement, displacement is how many, whether the displacement occurred the actual conditions such as within installation dimensions, all there is no concrete data to prove in the past, after isallobaric device to erecting stage, transformer overhead guard must be opened, supervisory personnel could confirm after entering inner actual checking.So have many drawbacks, first have the unnecessary maintenance overhaul expense in 100,000.Secondly, after also opening upper cover because of scene, the objectionable impuritiess such as various dust, moisture, air enter transformer and bring uncertain potential safety hazard, thus affect transformer real work quality and life-span.3rd production time incuring loss through delay transformer brings directly, indirect economic loss.
Therefore, research and develop a kind of reliable monitoring device of iron core inside transformer displacement, become people's problem demanding prompt solution.
Utility model content
Given this, the purpose of this utility model is the monitoring device providing a kind of iron core inside transformer displacement, inaccurate with the monitoring result at least solving iron core inside transformer displacement in the past, cause maintenance overhaul costly, affect transformer work quality, life-span, bring the problems such as economic loss.
The technical scheme that the utility model provides, is specially, and a kind of monitoring device of iron core inside transformer displacement, is characterized in that, comprising:
Displacement transducer, for monitoring the displacement size of described iron core inside transformer;
Impact record instrument, for monitoring the size of described transformer magnitude of vibrations;
Data acquisition unit, be connected with institute's displacement sensors and described impact record instrument respectively, the displacement information about described iron core inside transformer displacement size that displacement sensors sends for receiving and the vibration information about described transformer magnitude of vibrations size that described impact record instrument sends, and judge the real misalignment of described iron core inside transformer according to institute's displacement information and described vibration information and generate judged result, described judged result comprises described iron core and is subjected to displacement and is not subjected to displacement with described iron core.
Preferably, the monitoring device of described iron core inside transformer displacement, also comprise: alarm unit, be connected with described data acquisition unit and Surveillance center respectively, for receiving the judged result that described data acquisition unit sends, when described judged result be described iron core be subjected to displacement time, described alarm unit sends alerting signal to described Surveillance center, otherwise does not send.
Further preferably, described data acquisition unit comprises:
Data receipt unit, the displacement information about described iron core inside transformer displacement size that displacement sensors sends for receiving and the vibration information about described transformer magnitude of vibrations size that described impact record instrument sends;
Data processing unit, be connected with described data receipt unit, for carrying out the process of displacement information in described data receipt unit and described vibration information, when in institute's displacement information, iron core displacement size exceedes threshold value, and when simultaneously transformer magnitude of vibrations size exceedes threshold value in described vibration information, generate the judged result that described iron core is subjected to displacement, otherwise generate the judged result that described iron core is not subjected to displacement;
Display unit, is connected with described data processing unit, for showing the judged result of described data processing unit.
Further preferably, institute's displacement sensors is optical fibre displacement sensor, comprising: static probe and the probe that slides, and described static probe is installed on described transformer chassis, on the iron core that the described probe that slides is installed in described transformer.
Further preferably, described impact record instrument is installed on the upper top cover of described transformer.
The monitoring device of the iron core inside transformer displacement that the utility model provides, carrys out the real displacement situation of comprehensive descision iron core inside transformer by monitoring the size of transformer magnitude of vibrations in the displacement size of iron core inside transformer and transport simultaneously.From the angle of science, can not be subjected to displacement by judgement transformer core very only according to a kind of displacement alerting signal, because any instrument and equipment has the possibility of mistaking signal, if the pilot signal of two or more different principle can be provided simultaneously, simultaneously as evidence, just can avoid providing error message because of monitoring instrument faults itself, thus true, science, accurately data are provided in transformer transporting process, improve the accuracy of iron core inside transformer displacement monitoring.
The monitoring device of the iron core inside transformer displacement that the utility model provides, has structure simple, reasonable in design, easy to use, and monitoring result is accurate, and the advantages such as rate of false alarm is low, for producer has saved a large amount of maintenance costs, produce huge economic benefit.
Accompanying drawing explanation
Fig. 1 is the monitoring device module diagram of iron core inside transformer displacement;
Fig. 2 is the transformer device structure schematic diagram of the monitoring device being provided with iron core displacement;
Fig. 3 is the module diagram of the monitoring device being arranged on the displacement of transformer upper core.
Embodiment
Below in conjunction with specific embodiment, the utility model is further expalined, but is not limited to protection domain of the present utility model.
In order to solve the accurate measurements that cannot realize iron core inside transformer displacement in prior art, present embodiment provides a kind of monitoring device of iron core inside transformer displacement, comprising: for monitoring the displacement transducer 1 of the displacement size of described iron core inside transformer, for monitoring the impact record instrument 2 of the size of described transformer magnitude of vibrations, the data acquisition unit 3 be connected with institute's displacement sensors and described impact record instrument respectively, the vibration information about described transformer magnitude of vibrations size that this data acquisition unit 3 displacement information about described iron core inside transformer displacement size that displacement sensors 1 sends for receiving and described impact record instrument 2 send, and judge the real misalignment of described iron core inside transformer according to institute's displacement information and described vibration information and generate judged result, described judged result comprises described iron core and is subjected to displacement and is not subjected to displacement with described iron core, wherein displacement transducer and impact record instrument are commercial ordinary sensors and registering instrument.
This monitoring device is monitored the magnitude of vibrations size of iron core inside transformer displacement size and transformer simultaneously, verified by displacement information and vibration information two groups of data simultaneously, thus effectively can avoid the erroneous judgement that causes because mistake appears in any one group of data, thus improve the accuracy rate of this monitoring method.Meanwhile, because above-mentioned two groups of data are pilot signals of two groups of different principle, simultaneously as evidence, the authenticity of Monitoring Data, science and accuracy can be improved further.
In order to realize the warning function of the monitoring device of iron core inside transformer displacement, as the improvement of technical scheme, see Fig. 1, this monitoring device also comprises alarm unit 4, be connected with described data acquisition unit and Surveillance center 5 respectively, for receive described data acquisition unit send judged result, when described judged result be described iron core be subjected to displacement time, described alarm unit 4 sends alerting signal to described Surveillance center 5, otherwise does not send.
See Fig. 1, described data acquisition unit 3 comprises:
Data receipt unit 31, the displacement information about described iron core inside transformer displacement size that displacement sensors sends for receiving and the vibration information about described transformer magnitude of vibrations size that described impact record instrument sends;
Data processing unit 32, be connected with described data receipt unit, for carrying out the process of displacement information in described data receipt unit and described vibration information, when in institute's displacement information, iron core displacement size exceedes threshold value, and when simultaneously transformer magnitude of vibrations size exceedes threshold value in described vibration information, generate the judged result that described iron core is subjected to displacement, otherwise generate the judged result that described iron core is not subjected to displacement;
Display unit 33, is connected with described data processing unit, for showing the judged result of described data processing unit.
Wherein, in order to adapt to the working environment of transformer medium-high magnetic field, high voltage, big current, institute's displacement sensors is optical fibre displacement sensor, comprise: static spy 11 and slip probe 12, described static probe is installed on described transformer chassis, and on the iron core that the described probe that slides is installed in described transformer, the detection accuracy of fibre-optical probe reaches 0.002mm, therefore any small displacement can monitor, thus ensure that the safety in transformer transporting process; Described impact record instrument is installed on the upper top cover of described transformer.
The introduction of each embodiment above-mentioned carries out writing according to the mode of going forward one by one, and highlights the difference of each embodiment, its similar portion, can cross-reference.
Below for the monitoring device of iron core inside transformer displacement being applied to the concrete case in transformer.
See Fig. 2, this transformer 6 comprises transformer-cabinet 61, iron core 62 is provided with in transformer-cabinet 61, this transformer 6 is provided with the monitoring device of iron core inside transformer displacement, this monitoring device comprises displacement transducer 1, the data acquisition unit 3 that impact record instrument 2 is connected with displacement transducer 1 and impact record instrument 2, wherein, displacement transducer 1 comprises static probe 11 and slip probe 12, described static probe 11 is installed on the base plate 611 of transformer-cabinet 61, and described slip probe 12 is installed on iron core 62, static probe is connected with the data acquisition unit 3 being arranged at transformer-cabinet 61 outside by connection line of optic fibre 7 with slip probe, because connection line of optic fibre 7 needs through transformer-cabinet 61, connection line of optic fibre 7 is set with through device 8 in outside, by the sidewall of through device 8 through transformer-cabinet 61, the top cover place of transformer-cabinet 61 is provided with impact record instrument 2 simultaneously, this impact record instrument 2 is also connected with data acquisition unit 3 by connection line of optic fibre 7, thus the Real-Time Monitoring realized for this transformer, simultaneously in order to realize warning function, alarm unit can also be connected with data acquisition unit 3, the monitoring device module diagram of concrete iron core inside transformer displacement, can see Fig. 3.By experimental results demonstrate for above-mentioned transformer, its monitoring accuracy can reach 99%.
The implementation case is the preferred embodiment of the utility model, is not limited to protection domain of the present utility model.
Claims (5)
1. a monitoring device for iron core inside transformer displacement, is characterized in that, comprising:
Displacement transducer, for monitoring the displacement size of described iron core inside transformer;
Impact record instrument, for monitoring the size of described transformer magnitude of vibrations;
Data acquisition unit, be connected with institute's displacement sensors and described impact record instrument respectively, the displacement information about described iron core inside transformer displacement size that displacement sensors sends for receiving and the vibration information about described transformer magnitude of vibrations size that described impact record instrument sends, and judge the real misalignment of described iron core inside transformer according to institute's displacement information and described vibration information and generate judged result, described judged result comprises described iron core and is subjected to displacement and is not subjected to displacement with described iron core.
2. according to the monitoring device of iron core inside transformer displacement described in claim 1, it is characterized in that, also comprise: alarm unit, be connected with described data acquisition unit and Surveillance center respectively, for receiving the judged result that described data acquisition unit sends, when described judged result be described iron core be subjected to displacement time, described alarm unit sends alerting signal to described Surveillance center, otherwise does not send.
3. according to the monitoring device of iron core inside transformer displacement described in claim 1, it is characterized in that, described data acquisition unit comprises:
Data receipt unit, the displacement information about described iron core inside transformer displacement size that displacement sensors sends for receiving and the vibration information about described transformer magnitude of vibrations size that described impact record instrument sends;
Data processing unit, be connected with described data receipt unit, for carrying out the process of displacement information in described data receipt unit and described vibration information, when in institute's displacement information, iron core displacement size exceedes threshold value, and when simultaneously transformer magnitude of vibrations size exceedes threshold value in described vibration information, generate the judged result that described iron core is subjected to displacement, otherwise generate the judged result that described iron core is not subjected to displacement;
Display unit, is connected with described data processing unit, for showing the judged result of described data processing unit.
4. according to the monitoring device of iron core inside transformer displacement described in claim 1, it is characterized in that, institute's displacement sensors is optical fibre displacement sensor, comprise: static probe and the probe that slides, described static probe is installed on described transformer chassis, on the iron core that the described probe that slides is installed in described transformer.
5. according to the monitoring device of iron core inside transformer displacement described in claim 1, it is characterized in that: described impact record instrument is installed on the upper top cover of described transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410999.7U CN204694214U (en) | 2015-06-15 | 2015-06-15 | A kind of monitoring device of iron core inside transformer displacement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520410999.7U CN204694214U (en) | 2015-06-15 | 2015-06-15 | A kind of monitoring device of iron core inside transformer displacement |
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| CN204694214U true CN204694214U (en) | 2015-10-07 |
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| CN201520410999.7U Active CN204694214U (en) | 2015-06-15 | 2015-06-15 | A kind of monitoring device of iron core inside transformer displacement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897066A (en) * | 2015-06-15 | 2015-09-09 | 沈阳鸿基电气有限公司 | Method and device for monitoring displacement of iron core in transformer |
| CN107727344A (en) * | 2017-09-12 | 2018-02-23 | 国网天津市电力公司电力科学研究院 | A kind of transformer based on wavelet energy method collides record data analysis method |
-
2015
- 2015-06-15 CN CN201520410999.7U patent/CN204694214U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897066A (en) * | 2015-06-15 | 2015-09-09 | 沈阳鸿基电气有限公司 | Method and device for monitoring displacement of iron core in transformer |
| CN107727344A (en) * | 2017-09-12 | 2018-02-23 | 国网天津市电力公司电力科学研究院 | A kind of transformer based on wavelet energy method collides record data analysis method |
| CN107727344B (en) * | 2017-09-12 | 2019-09-27 | 国网天津市电力公司电力科学研究院 | A kind of transformer collision record data analysing method based on wavelet energy method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 110000 Shenyang, Jiangsu Province, Yuhong District Street, No. 12 Patentee after: Shenyang eye Chi Yun Mdt InfoTech Ltd Address before: 110000 Shenyang, Jiangsu Province, Yuhong District Street, No. 12 Patentee before: Shenyang Hongji Electrical Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |