CN105891685A - All-weather ultrasonic state monitoring device for substation equipment - Google Patents
All-weather ultrasonic state monitoring device for substation equipment Download PDFInfo
- Publication number
- CN105891685A CN105891685A CN201610204049.8A CN201610204049A CN105891685A CN 105891685 A CN105891685 A CN 105891685A CN 201610204049 A CN201610204049 A CN 201610204049A CN 105891685 A CN105891685 A CN 105891685A
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- Prior art keywords
- state monitoring
- converting equipment
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- round
- ultrasound wave
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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
- G01R31/1209—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 using acoustic measurements
-
- 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
- G01R31/1263—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 of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—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 of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
Abstract
An all-weather ultrasonic state monitoring device for substation equipment comprises multiple closed ultrasonic probes and a portable device. The portable device comprises a signal conditioning module, a multi-channel signal acquisition instrument, and a master control computer. The multiple closed ultrasonic probes are connected with the multi-channel signal acquisition instrument through the signal conditioning module, and the multi-channel signal acquisition instrument is connected with the master control computer. The all-weather ultrasonic state monitoring device can monitor, record and analyze ultrasonic signals of substation equipment uninterruptedly without being affected by weather, surrounding noise or electromagnetic interference. The device supports online signal display, partial discharge statistical feature extraction, abnormity alarm, and database reading and writing. The device is suitable for detecting the state of power supply and transmission facilities in substations and collecting and analyzing data, provides a powerful reference for substation equipment state assessment, and is a safe and convenient tool for substation on-duty and maintenance personnel. The device is advantageous to the research of substation equipment insulation aging laws and to the power company's correct assessment of equipment state in procurement and old equipment utilization test.
Description
Technical field
The invention belongs to the online measuring technique field of Ultrasonic NDT and converting equipment, particularly relate to
A kind of round-the-clock ultrasound wave state monitoring apparatus for converting equipment.
Background technology
Along with Dynamic Non-Destruction Measurement towards high reliability, in high precision, high in real time and quantification direction is developed,
The ultrasonic detecting technology possessing quantitative analysis and real-time online ability is increasingly born by relevant enterprise in the industry
Duty people and the attention of scientific research personnel.In Ultrasonic NDT, the quantitative analysis method of current information is main
Including imaging type and non-imaging type two kinds, wherein the quantitative analysis method of non-imaging type ultrasound detection is by dividing
The analysis time delay of flaw echoes, distribution character and equivalent contrast realize defective locations, type and big
Little quantitative analysis, owing to having only to process single flaw echoes, the method has in real time
Property height, hardware less investment, low cost and be easy to the advantages such as integrated, is highly suitable to be applied for on-line automatic
The Ultrasonic NDT that chemical industry is on-the-spot.In non-imaging type ultrasound detection quantitative analysis method, defect
The judgement of position and orientation is relatively easy to, the quantitative analysis of the type and size of defect then relative difficulty.
Waveform, amplitude and spectrum distribution due to ultrasonic signal carries the information of defect, and non-imaging type is ultrasonic
Detection default kind identification method can analyze feature ginseng by extracting defect information feature from detection signal
Corresponding relation between number and defect type, realizes the type identification to defect.The method need not tangle
In complicated ultrasonic reflection modeling, there is preferable versatility and practicality.In sum, non-imaging type surpasses
Sound detection Classifcation of flaws is the important foundation of online ultrasound detection quantitative analysis, and research has highly reliable
Property non-imaging type defects in ultrasonic testing kind identification method, for realize the detection of online automatic ultrasonic with
Efficiency and the quality of evaluating, improve Ultrasonic NDT all have great importance.
In power system, for the converting equipment such as transformator, GIS, have when properly functioning
Metastable ultrasonic signal exports.When the inside electric appliance generation shelf depreciation such as transformator, GIS
Can produce the process of charging neutrality, correspondingly can produce steeper current impulse, the effect of current impulse will
The regional area moment that shelf depreciation is occurred is heated and expands, and forms the effect of a kind of similar blast,
The region that electric discharge is originally heated after terminating and is expanded then returns to original volume, this due to shelf depreciation
The change in volume rising by a contracting produced can cause the density instantaneous variation of medium, thus forms ultrasound wave,
And propagate to surrounding in the way of spherical wave from shelf depreciation point, the most adjoint
The generation of ultrasound wave.On the one hand, shelf depreciation is by a series of pulse shaping, consequent sound wave
Also it is by pulse shaping；On the other hand, ultrasonic Detection Method can also detect the machinery that moving particle produces
Ripple, can be used to distinguish the kinestate of granule.It addition, in the irregular operating such as overheated grade of converting equipment overload
Time, the ultrasonic signal of converting equipment has bigger difference.Therefore, ultrasound detection is for substation safety
Operation has great importance, and is badly in need of a kind of round-the-clock ultrasound wave status monitoring for converting equipment and fills
Put.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of round-the-clock for converting equipment
Ultrasound wave state monitoring apparatus.
In order to achieve the above object, the round-the-clock ultrasound wave state for converting equipment that the present invention provides is supervised
Survey device includes: multiple closed ultrasonic probes and mancarried device；Wherein mancarried device includes signal
Conditioning module, multi-channel signal acquiring instrument and main control computer；Described multiple closed ultrasonic probes are equal
Being connected with multi-channel signal acquiring instrument by Signal-regulated kinase, multi-channel signal acquiring instrument calculates with master control
Machine connects.
Described closed ultrasonic probe or external or be positioned on the fuel tap of converting equipment.
Described Signal-regulated kinase is multi channel signals modulate circuit, and the input of its each passage connects one
Individual closed ultrasonic probe, outfan are connected with the input of the respective channel of multi-channel signal acquiring instrument
Connect.
Described multi-channel signal acquiring instrument specifically includes that preposition input module, programming amplifying module, number
According to acquisition module and signal generating module.
Described main control computer is portable computer.
The effect of the round-the-clock ultrasound wave state monitoring apparatus for converting equipment that the present invention provides: permissible
In the case of not by weather, ambient noise, electromagnetic interference, the ultrasonic signal of converting equipment is carried out not
Be interrupted monitoring, record and analyze.This device supports the Real time displaying to signal, and office puts statistical nature and carries
Take, abnormal alarm and read-write data base.It is applicable to carry out state-detection also at converting station electric power for defeated facility
Carrying out data collection and analysis, it will be the strong reference of converting equipment state estimation, Ye Shi transformer station is worth
Class and the instrument of attendant's safe ready.Be conducive to converting equipment insulation ag(e)ing law study, also simultaneously
Be conducive to the Utilities Electric Co.'s correct assessment to status of equipment in buying and the test that reuses.
Accompanying drawing explanation
The structure of the round-the-clock ultrasound wave state monitoring apparatus for converting equipment that Fig. 1 provides for the present invention
Schematic diagram.
Manifold in the round-the-clock ultrasound wave state monitoring apparatus for converting equipment that Fig. 2 provides for the present invention
Road signal sampler cut-away view.
The round-the-clock ultrasound wave state monitoring apparatus outward appearance for converting equipment that Fig. 3 provides for the present invention is shown
It is intended to.
Detailed description of the invention
There is provided the present invention with specific embodiment below in conjunction with the accompanying drawings surpasses for the round-the-clock of converting equipment
State of sound waves monitoring device is described in detail.
As it is shown in figure 1, the round-the-clock ultrasound wave state monitoring apparatus for converting equipment that the present invention provides
Including:
Multiple closed ultrasonic probes 1 and mancarried device；Wherein mancarried device includes signal condition mould
Block 2, multi-channel signal acquiring instrument 3 and main control computer 4；Described multiple closed ultrasonic probes 1
All be connected with multi-channel signal acquiring instrument 3 by Signal-regulated kinase 2, multi-channel signal acquiring instrument 3 with
Main control computer 4 connects.
Described closed ultrasonic probe 1 or external or be positioned on the fuel tap of converting equipment, resolution is
0.069mm, repeatable accuracy is ± 0.15%, and the linearity (precision) is ± 1%, and it utilizes ultrasound wave
The sensor that characteristic develops, and waterproof anti-air-flow.Ultrasound wave is that a kind of frequency of vibration is higher than sound wave
Mechanical wave, be to be occurred vibration to produce under the excitation of voltage by transducing wafer, have that frequency is high, ripple
Length, diffraction phenomenon are little, particularly good directionality, ray can be become and the features such as direction propagation.
Signal-regulated kinase 2 is multi channel signals modulate circuit, and the input of its each passage connects one
Closed ultrasonic probe 1, outfan are connected with the input of the respective channel of multi-channel signal acquiring instrument 3
Connecing, function is that frequency range selects and signal amplifies.
As in figure 2 it is shown, described multi-channel signal acquiring instrument 3 specifically includes that preposition input module, journey
Control amplification module, data acquisition module and signal generating module, could support up 8 closed ultrasonic probes
1 gathers data simultaneously.The most preposition input module is mainly each closed ultrasonic probe 1 and powers and provide
Input interface, supports at present ICP to power, 200V polarizing voltage, directly inputs 3 kinds.ICP works electricity
Stream is 5mA, and voltage is 28V；200V polarizing voltage is mainly used in supporting to need the microphone of polarizing voltage；
Directly input and be mainly used in voltage and directly input measurement.Input signal is mainly compared by programming amplifying module
Example is amplified, and to expand the measurement scope of equipment, total-20dB, 0dB, 20dB third gear is adjustable, and signal exists
This carry out scaling after, main control computer 4 can automatically amplification coefficient is joined in analysis result, from
And draw correct measurement result.Data acquisition module uses 24 high-performance AD analogue signal to be converted
For digital signal, sample frequency is 48kHz.Digital signal is sent in main control computer 4 by network interface
It is further processed.Each channel acquisition module independently, thus ensure that each passage stablizes the reality of bandwidth
Time analyze.Signal generating module is the signal generator of 2 passages, and maximum output voltage is 9Vrms, frequency
Scope is 1Hz～80kHz.
Main control computer 4 is portable computer, in order to record, to store and to analyze multi-channel signal acquiring
The signal of instrument 3, internal 100,000,000 netting twines communicate with multi-channel signal acquiring instrument 3 for it, and 24v switchs
Power supply and battery, waterproof pressure-resistant shell, windows platform.
The inside of main control computer 4 is soft equipped with the ultrasonic round-the-clock ultrasound wave status monitoring for converting equipment
Part: LabVIEW platform based on NI company develop, including ultrasonic signal Real time displaying, abnormal alarm,
Office puts statistics spy and claims the functions such as extraction, write into Databasce, timing operation.There is monitoring time span big,
The functions such as monitoring resolution is high, continuous acquisition analysis, and sample frequency, sampling time work bar can be realized
The manual adjustment of part.
The installation of the round-the-clock ultrasound wave state monitoring apparatus for converting equipment that the present invention provides and work
It is described below as principle:
First by closed ultrasonic probe 1 fuel tap being arranged on converting equipment etc., or by each closed
Ultrasonic probe 1 spider is fixed on place (distance equipment is less than 2m) to be measured, and passes through data
Extended line is respectively connecting to mancarried device, inserts the BNC seat of each passage.
2. opening mancarried device, the 24V power supply within utilization is to main control computer 4 and multi channel signals
Acquisition Instrument 3 is powered.The ultrasonic signal that converting equipment sends potentially includes normal signal and abnormal signal, close
Ultrasonic signal that enclosed ultrasonic probe 1 Real-time Collection converting equipment sends also is converted to the signal of telecommunication, then passes
Delivering to multi-channel signal acquiring instrument 3, multi-channel signal acquiring instrument 3 can be by the signal of telecommunication of each passage with identical
Frequency acquisition (maximum 48kHz) carries out analog digital conversion, and the digital signal obtained is passed through network interface transmission
To main control computer 4, main control computer 4 utilizes its internal software to analyze above-mentioned signal in real time,
Can monitor in real time display, draw ultrasonic dB-time broken line graph, detect exception and report to the police, timing operation
And the function such as write into Databasce, and executive board can put characteristic pattern and draw and preliminary fault for abnormal signal
Type identification.
Claims (5)
1. the round-the-clock ultrasound wave state monitoring apparatus for converting equipment, it is characterised in that: institute
The round-the-clock ultrasound wave state monitoring apparatus for converting equipment stated includes: multiple closed ultrasonic probes
And mancarried device (1)；Wherein mancarried device includes Signal-regulated kinase (2), multi channel signals
Acquisition Instrument (3) and main control computer (4)；Described multiple closed ultrasonic probes (1) are all passed through
Signal-regulated kinase (2) is connected with multi-channel signal acquiring instrument (3), multi-channel signal acquiring instrument (3)
It is connected with main control computer (4).
Round-the-clock ultrasound wave state monitoring apparatus for converting equipment the most according to claim 1,
It is characterized in that: described closed ultrasonic probe (1) or external or be positioned over the fuel tap of converting equipment
On.
Round-the-clock ultrasound wave state monitoring apparatus for converting equipment the most according to claim 1,
It is characterized in that: described Signal-regulated kinase (2) is multi channel signals modulate circuit, its each passage
Input connect closed ultrasonic probe (1), outfan and multi-channel signal acquiring instrument (3)
The input of respective channel be connected.
Round-the-clock ultrasound wave state monitoring apparatus for converting equipment the most according to claim 1,
It is characterized in that: described multi-channel signal acquiring instrument (3) specifically includes that preposition input module, journey
Control amplification module, data acquisition module and signal generating module.
Round-the-clock ultrasound wave state monitoring apparatus for converting equipment the most according to claim 1,
It is characterized in that: described main control computer (4) is portable computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610204049.8A CN105891685A (en) | 2016-03-31 | 2016-03-31 | All-weather ultrasonic state monitoring device for substation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610204049.8A CN105891685A (en) | 2016-03-31 | 2016-03-31 | All-weather ultrasonic state monitoring device for substation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105891685A true CN105891685A (en) | 2016-08-24 |
Family
ID=57012642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610204049.8A Pending CN105891685A (en) | 2016-03-31 | 2016-03-31 | All-weather ultrasonic state monitoring device for substation equipment |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707128A (en) * | 2017-03-16 | 2017-05-24 | 国家电网公司 | Acoustoelectric associated local cable discharge locating device and method |
| CN109975761A (en) * | 2019-05-09 | 2019-07-05 | 国网湖北省电力有限公司黄石供电公司 | A kind of power equipment abnormal sound positioning device |
| CN111650501A (en) * | 2020-03-04 | 2020-09-11 | 苏州热工研究院有限公司 | Testing device for nondestructive online evaluation of aging state of relay |
| CN116907586A (en) * | 2023-09-06 | 2023-10-20 | 深圳市三维医疗设备有限公司 | Ultrasonic equipment running state management system and method based on cloud computing |
| CN109975761B (en) * | 2019-05-09 | 2024-05-03 | 国网湖北省电力有限公司黄石供电公司 | Abnormal sound positioning device for power equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707128A (en) * | 2017-03-16 | 2017-05-24 | 国家电网公司 | Acoustoelectric associated local cable discharge locating device and method |
| CN109975761A (en) * | 2019-05-09 | 2019-07-05 | 国网湖北省电力有限公司黄石供电公司 | A kind of power equipment abnormal sound positioning device |
| CN109975761B (en) * | 2019-05-09 | 2024-05-03 | 国网湖北省电力有限公司黄石供电公司 | Abnormal sound positioning device for power equipment |
| CN111650501A (en) * | 2020-03-04 | 2020-09-11 | 苏州热工研究院有限公司 | Testing device for nondestructive online evaluation of aging state of relay |
| CN111650501B (en) * | 2020-03-04 | 2022-08-16 | 苏州热工研究院有限公司 | Testing device for nondestructive online evaluation of aging state of relay |
| CN116907586A (en) * | 2023-09-06 | 2023-10-20 | 深圳市三维医疗设备有限公司 | Ultrasonic equipment running state management system and method based on cloud computing |
| CN116907586B (en) * | 2023-09-06 | 2023-11-21 | 深圳市三维医疗设备有限公司 | Ultrasonic equipment running state management system and method based on cloud computing |
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Application publication date: 20160824 |
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