CN106483435A - Transformer belt electric detection means - Google Patents
Transformer belt electric detection means Download PDFInfo
- Publication number
- CN106483435A CN106483435A CN201611045382.5A CN201611045382A CN106483435A CN 106483435 A CN106483435 A CN 106483435A CN 201611045382 A CN201611045382 A CN 201611045382A CN 106483435 A CN106483435 A CN 106483435A
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- China
- Prior art keywords
- transformer
- data acquisition
- acquisition module
- uhf
- computer processing
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
Abstract
The present invention relates to partial discharge of transformer detection technique field, it is a kind of transformer belt electric detection means, which includes three-phase transformer, uhf sensor, data acquisition module, computer processing module, the transformer front diagonal on be installed with least two uhf sensors, the transformer reverse side diagonal on be installed with least two uhf sensors, uhf sensor is electrically connected with data acquisition module respectively, and data acquisition module is communicated to connect with computer processing module.Present configuration is reasonable and compact, easy to use, highly reliable, sensitivity is high, power, type and the position of the local discharge signal of inside transformer can be detected, and analyze the local discharge characteristic under different defect situation and its rule, transformer partial discharge signal spectrum library is set up, is that the application of transformer belt electro-detection technology in power system provides effectively reference, so as to improve related personnel's operating efficiency.
Description
Technical field
The present invention relates to partial discharge of transformer detection technique field, is a kind of transformer belt electric detection means.
Background technology
High-power transformer is widely used in power department, and its operation conditions is directly connected to the safety fortune of power system
OK.China in recent years in the high-power transformer accident of more than 110kV Insulation Problems account for very big proportion, and shelf depreciation is both exhausted
The reason for edge is deteriorated, is tendency and the form of expression of insulation degradation again.And due to high-power transformer complex structure, insulation very not
Uniformly, improper when designing, cause local field strength too high, the factor such as bad or outside cause of technique, when causing internal flaw, becoming
Shelf depreciation will necessarily be produced in depressor, and is gradually developed, eventually cause transformer damage, it is therefore necessary to debugging and monitoring
Found in journey early and solve, and the Characteristics of Partial Discharge of test transformer is a kind of good side of prevention transformer fault at present
Method, that is, obtain local discharge signal and which be analyzed process, provide warning and failure diagnosis information, and prevention in time finds
Catastrophic discontinuityfailure, it is to avoid hindered for some reason expands further and cause the generation of accident, is that Condition Maintenance Method of Transformer provides number in real time
According to.
Content of the invention
The invention provides a kind of transformer belt electric detection means, overcomes the deficiency of above-mentioned prior art, which can be effective
Solve the problems, such as to detect the shelf depreciation information that transformer defect is produced present in prior art and be positioned.
The technical scheme is that and realized by following measures：A kind of transformer belt electric detection means, including three
Phase transformer, uhf sensor, data acquisition module, computer processing module data memory module, in the transformer
Front diagonal on be installed with least two uhf sensors, the transformer reverse side diagonal on be installed with
At least two uhf sensors, uhf sensor are electrically connected with data acquisition module respectively, data acquisition module and calculating
Machine processing module is communicated to connect, and computer processing module data memory module is communicated to connect.
The further optimization and/or improvements being presented herein below to foregoing invention technical scheme：
Electrically connected by RF cable between above-mentioned uhf sensor and data acquisition module.
Above computer processing module is terminal.
Present configuration is reasonable and compact, easy to use, and the local for receiving three-phase transformer by uhf sensor is put
Electric signal, is carried out data acquisition by data acquisition module to local discharge information, data is calculated by terminal device
With analysis, power and the type of transformer inner discharge signal is judged, calculate the position for analyzing transformer inner discharge
Put, data storage and management is carried out by data memory module；So as to the present invention is highly reliable, sensitivity is high, transformation can be detected
The power, type of the local discharge signal inside device and position, and analyze the local discharge characteristic under different defect situation and its
Rule, sets up transformer partial discharge signal spectrum library, is that the application of transformer belt electro-detection technology in power system is carried
For effectively reference, so as to improve related personnel's operating efficiency.
Description of the drawings
Accompanying drawing 1 is the electrical block diagram of preferred embodiment.
Specific embodiment
The present invention is not limited by following embodiments, can technology according to the present invention scheme and actual conditions concrete to determine
Embodiment.
With reference to embodiment and accompanying drawing, the invention will be further described：
Embodiment 1：As shown in Figure 1, the transformer belt electric detection means, including three-phase transformer, uhf sensor, data
Acquisition module, computer processing module data memory module, the transformer front diagonal on be installed with least
Two uhf sensors, the transformer reverse side diagonal on be installed with least two uhf sensors, superelevation
Video sensor is electrically connected with data acquisition module respectively, and data acquisition module is communicated to connect with computer processing module, computer
Processing module data memory module is communicated to connect.
Here, three-phase transformer is 110kV transformer, or 220kV transformer；Uhf sensor has in superelevation
The electromagnetic wave signal that shelf depreciation is produced is extracted in the range of frequency, by the less feature of external interference effect of signals, therefore using super
The local discharge signal that high frequency sensors receiving transformer is radiated, can be greatly enhanced the antijamming capability of the present invention,
Reliability and the sensitivity of present invention detection is improved, while the local discharge signal for receiving is sent to number by uhf sensor
According to acquisition module；Data acquisition module is used for carrying out the local discharge signal that receives data acquisition, and by the number after collection
According to being sent to computer processing module；Computer processing module is used for receiving data and data is calculated and analyzed, and judges
Go out power and the type of transformer inner discharge signal, and the size of the time difference by received data and numerical value is calculated
The position of transformer inner discharge, while stored data is activation to data memory module；Data memory module is stored
Historical data, and historical data can be managed and inquiry, provide a user with data results and local discharge signal spectrum
The information such as figure.
According to actual needs above-mentioned transformer belt electric detection means can be made further optimization and/or improvements：
As shown in Figure 1, electrically connected by RF cable between uhf sensor and data acquisition module.Here, radio frequency line
Cable structure is simple, install facility, the spy for having the high and radiation loss of defence degree that can be transmitted broad frequency band, disturb to external world little
Point, can effectively transmit local discharge signal.
As shown in Figure 1, computer processing module is terminal.Terminal receiving data acquisition module is gathered
The data for arriving, and the data for receiving are calculated by the control software that installs in terminal and analyzed, judge
The power and type of transformer inner discharge signal, and the size of the time difference by received data and numerical value calculates change
The position of shelf depreciation in depressor.
Embodiment 2：Defect is placed in a normal transformer, outside transformer, such as place multiple metals protrusion
Thing and inside transformer place floating potential, floating potential can be suspension copper ring, and suspension copper ring is neither direct with high-pressure side
Connection, is not also connected to ground, and after defect is placed, is energized to transformer, then by installing on the transformer in the present invention
The local discharge signal that uhf sensor receiving transformer is produced because of defect, and local discharge signal is sent to data acquisition
Module, data acquisition module carry out data acquisition to local discharge signal, and by the data is activation after collection to computer disposal
Data are finally calculated by computer processing module and are analyzed, judged the strong of transformer inner discharge signal by module
Weak and type, and the size of the time difference by received data and numerical value calculates the position of transformer inner discharge, so
Afterwards data and analysis result are stored in data memory module, while quantity and the placement location of defect can be varied multiple times, repeatedly
Data acquisition and data analysis is carried out, the data volume in data memory module is enriched, so as to analyze under different defect situation
Local discharge characteristic and its rule, and transformer partial discharge signal spectrum library is set up, it is applied to partial discharge of transformer
Live detection and insulation diagnosis, and effectively reference is provided for the application of transformer belt electro-detection technology in power system.
Above technical characteristic constitutes embodiments of the invention, and which has stronger adaptability and implementation result, can basis
The non-essential technical characteristic of increase and decrease is actually needed, meets the demand of different situations.
Claims (3)
1. a kind of transformer belt electric detection means, it is characterised in that including three-phase transformer, uhf sensor, data acquisition module
Block, computer processing module data memory module, the transformer front diagonal on be installed with and at least two surpass
High frequency sensors, the transformer reverse side diagonal on be installed with least two uhf sensors, hyperfrequency is sensed
Device is electrically connected with data acquisition module respectively, and data acquisition module is communicated to connect with computer processing module, computer disposal mould
Block data memory module is communicated to connect.
2. transformer belt electric detection means according to claim 1, it is characterised in that：The uhf sensor and data
Electrically connected by RF cable between acquisition module.
3. transformer belt electric detection means according to claim 1 and 2, it is characterised in that：The computer processing module
It is terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045382.5A CN106483435A (en) | 2016-11-24 | 2016-11-24 | Transformer belt electric detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045382.5A CN106483435A (en) | 2016-11-24 | 2016-11-24 | Transformer belt electric detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106483435A true CN106483435A (en) | 2017-03-08 |
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ID=58275402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611045382.5A Pending CN106483435A (en) | 2016-11-24 | 2016-11-24 | Transformer belt electric detection means |
Country Status (1)
| Country | Link |
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| CN (1) | CN106483435A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361622A (en) * | 2019-07-12 | 2019-10-22 | 台州宏创电力集团有限公司 | Method for diagnosing faults, device, equipment and the storage medium of partial discharge of transformer |
Citations (7)
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| CN2736782Y (en) * | 2004-08-09 | 2005-10-26 | 华北电力大学（北京） | Voltage transformer local discharge ultrahigh frequency (UHF) online monitoring device |
| CN101551434A (en) * | 2009-05-13 | 2009-10-07 | 中南大学 | Transformer partial discharge positioning method base on ultra high frequency detection technology |
| CN202393871U (en) * | 2011-12-31 | 2012-08-22 | 赵晓楠 | Ultrahigh-frequency partial discharge on-line monitoring system for transformer |
| CN203811750U (en) * | 2013-11-27 | 2014-09-03 | 云南电网公司保山供电局 | Live-line detection system for partial discharge of transformer |
| CN105137312A (en) * | 2015-10-22 | 2015-12-09 | 国网河南禹州市供电公司 | Transformer partial discharge ultrahigh frequency detection device |
| CN205450189U (en) * | 2016-04-07 | 2016-08-10 | 许昌学院 | Transformer partial discharge positioning detecting system |
| CN206209053U (en) * | 2016-11-24 | 2017-05-31 | 国网新疆电力公司电力科学研究院 | Transformer belt electric detection means |
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2016
- 2016-11-24 CN CN201611045382.5A patent/CN106483435A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2736782Y (en) * | 2004-08-09 | 2005-10-26 | 华北电力大学（北京） | Voltage transformer local discharge ultrahigh frequency (UHF) online monitoring device |
| CN101551434A (en) * | 2009-05-13 | 2009-10-07 | 中南大学 | Transformer partial discharge positioning method base on ultra high frequency detection technology |
| CN202393871U (en) * | 2011-12-31 | 2012-08-22 | 赵晓楠 | Ultrahigh-frequency partial discharge on-line monitoring system for transformer |
| CN203811750U (en) * | 2013-11-27 | 2014-09-03 | 云南电网公司保山供电局 | Live-line detection system for partial discharge of transformer |
| CN105137312A (en) * | 2015-10-22 | 2015-12-09 | 国网河南禹州市供电公司 | Transformer partial discharge ultrahigh frequency detection device |
| CN205450189U (en) * | 2016-04-07 | 2016-08-10 | 许昌学院 | Transformer partial discharge positioning detecting system |
| CN206209053U (en) * | 2016-11-24 | 2017-05-31 | 国网新疆电力公司电力科学研究院 | Transformer belt electric detection means |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361622A (en) * | 2019-07-12 | 2019-10-22 | 台州宏创电力集团有限公司 | Method for diagnosing faults, device, equipment and the storage medium of partial discharge of transformer |
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Application publication date: 20170308 |
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| RJ01 | Rejection of invention patent application after publication |