CN204462316U - A kind of ultrasound wave Analysis of Partial Discharge instrument - Google Patents
A kind of ultrasound wave Analysis of Partial Discharge instrument Download PDFInfo
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- CN204462316U CN204462316U CN201520159061.2U CN201520159061U CN204462316U CN 204462316 U CN204462316 U CN 204462316U CN 201520159061 U CN201520159061 U CN 201520159061U CN 204462316 U CN204462316 U CN 204462316U
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- ultrasound wave
- partial discharge
- wave analysis
- ultrasonic sensor
- discharge instrument
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- 238000004458 analytical method Methods 0.000 title claims abstract description 20
- 238000002604 ultrasonography Methods 0.000 title claims abstract description 20
- 230000003321 amplification Effects 0.000 claims abstract description 19
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 19
- 239000000523 sample Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model discloses a kind of ultrasound wave Analysis of Partial Discharge instrument, relate to High-Voltage Electrical Appliances insulation failure detection field, ultrasound wave Analysis of Partial Discharge instrument comprises ultrasonic sensor, signal amplification processor, data-analyzing machine, display, keyboard, ultrasonic sensor is used for the ultrasonic signal that local electric discharge produces, the electric signal of acceptance is carried out multistage amplification to signal amplification processor and filtering is adjusted, compared with existing ultrasound wave shelf depreciation location instrument, the ultrasound wave Analysis of Partial Discharge instrument that the utility model provides, only need 1 ultrasonic sensor, just accurately can locate ultrasonic signal source through 3 measurements, decrease testing cost.
Description
Technical field
The utility model relates to High-Voltage Electrical Appliances insulation failure detection field, particularly a kind of ultrasound wave Analysis of Partial Discharge instrument.
Background technology
Gas insulated combined electrical equipment GIS has the advantages that insulativity is high, compact conformation, floor area are little, wide adaptability, reliability are high, is widely used in the generating plant and high voltage substation of electric system.But, GIS device is in manufacture and assembling process, often because the problems such as technique can make GIS inside leave some little defects, as metal particle, insulative air gap etc., these defects may cause shelf depreciation at GIS operational process and cause insulation fault further.Grasp and accurately locate the inner shelf depreciation situation existed of GIS device, just can guarantee there is the enough reaction time, effective prediction and maintenance are done to power equipment.
At present, the Partial Discharge Detecting Technology of carrying out for GIS equipment in operation has multiple, comprises electric pulse detection method, gas chromatography, ultrasonic Detection Method, Electromagnetic Wave Detection method, light detection method and Infrared Detection Method etc.Often kind of technology has its relative merits.Wherein supercritical ultrasonics technology and ultrahigh frequency method are as the more effective detection method of order first two, and antijamming capability is strong, highly sensitive.By contrast, ultrahigh frequency method be applicable to long-continued monitoring is carried out to equipment, need producer when device fabrication built-in pickoff coupler to ensure measuring accuracy; If carry out Site Detection in GIS outside, be very easily subject to the interference of extraneous various electromagnetic signals.Supercritical ultrasonics technology equipment use is easy, by carrying out defect location to the point-to-point measurement of equipment, can be more suitable for live detection at the scene.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of ultrasound wave Analysis of Partial Discharge instrument, by adopt ultrasonic sensor, signal amplification processor and data-analyzing machine with the use of, to solve the above-mentioned multinomial defect caused in prior art.
For achieving the above object, the utility model provides following technical scheme: a kind of ultrasound wave Analysis of Partial Discharge instrument, comprise ultrasonic sensor, signal amplification processor, data-analyzing machine, display, keyboard, described ultrasonic sensor output terminal is connected by the input end of data line with described signal amplification processor, and signal amplification processor inside is provided with wave filter, the output terminal of described signal amplification processor is connected with described data-analyzing machine by data line, and described display and keyboard are all connected with described data-analyzing machine.
Preferably, described ultrasonic sensor is normal probe formula ultrasonic sensor.
Preferably, described keyboard is provided with USB interface.
Preferably, described display is LCD display, and is provided with USB interface.
The beneficial effect of above technical scheme is adopted to be: compared with existing ultrasound wave shelf depreciation location instrument, the ultrasound wave Analysis of Partial Discharge instrument that the utility model provides, only need 1 ultrasonic sensor, just accurately can locate ultrasonic signal source through 3 measurements, such reduction testing cost, ultrasonic sensor is used for the ultrasonic signal that local electric discharge produces, and be that electric signal exports by analog to digital conversion, signal is clear, accuracy is high, the electric signal of acceptance is carried out multistage amplification to signal amplification processor and filtering is adjusted, whole process stabilization reliability is high, Signal transmissions is accurate, keyboard is used for the optimum configurations of data analysis and measures the input of front ultrasonic sensor coordinate position, can change at any time and revise various parameter, dirigibility is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of ultrasound wave Analysis of Partial Discharge of the utility model instrument;
Fig. 2 is the process flow diagram of a kind of ultrasound wave Analysis of Partial Discharge of the utility model method.
Wherein, 1-ultrasonic sensor, 2-signal amplification processor, 3-data-analyzing machine, 4-display, 5-keyboard.
Embodiment
The preferred implementation of a kind of ultrasound wave Analysis of Partial Discharge of the utility model instrument is described in detail below in conjunction with accompanying drawing.
As shown in Fig. 1, a kind of ultrasound wave Analysis of Partial Discharge of the utility model instrument, comprise ultrasonic sensor 1, signal amplification processor 2, data-analyzing machine 3, display 4, keyboard 5, described ultrasonic sensor 1 is normal probe formula ultrasonic sensor, described ultrasonic sensor 1 output terminal is connected by the input end of data line with described signal amplification processor 2, and signal amplification processor 2 inside is provided with wave filter, the output terminal of described signal amplification processor 2 is connected with described data-analyzing machine 3 by data line, described display 4 and keyboard 5 are all connected with described data-analyzing machine 3, display 4 is display, and be provided with USB interface, keyboard 5 is provided with USB interface.
Composition graphs 1 and Fig. 2, the analytical approach of ultrasound wave Analysis of Partial Discharge instrument comprises the following steps:
(1) after startup analysis instrument, the automatic configuration mode of Selection parameter carries out the Quick Measurement of ultrasonic signal to the diverse location of GIS device to be measured, determines that 3 positions that signal is strong are as next step pinpoint measurement point;
(2) initial point using the central point of GIS device as 3 dimension coordinates, measures 3 dimensional coordinate values in 3 sites to be measured;
(3) ultrasonic sensor is fixed on tested point 1, enter manual mode adjustment sampling parameter, and input the coordinate figure (x1 of this tested point, y1, z1), then start image data, data-analyzing machine stores the original waveform of shelf depreciation and carries out time-domain and frequency-domain analysis to raw data, extract eigenwert parameter and preserve these data, then the shelf depreciation original waveform of gained and phase resolved plot being shown over the display in real time;
(4) automatically enter successively second and three site measure, each measure before its coordinate figure of input (x2, y2, z2) and (x3, y3, z3);
(5) result measured according to 3 times, calculate according to built-in model and the coordinate position of accurate positioning ultrasonic signal source, built-in model calculation formula is:
(x-x
1)
2+(y-y
1)
2+(z-z
1)
2=v
2t
1 2
(x-x
2)
2+(y-y
2)
2+(z-z
2)
2=v
2t
2 2
(x-x
3)
2+(y-y
3)
2+(z-z
3)
2=v
2t
3 2。
Above is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (4)
1. a ultrasound wave Analysis of Partial Discharge instrument, it is characterized in that: comprise ultrasonic sensor, signal amplification processor, data-analyzing machine, display, keyboard, described ultrasonic sensor output terminal is connected by the input end of data line with described signal amplification processor, and signal amplification processor inside is provided with wave filter, the output terminal of described signal amplification processor is connected with described data-analyzing machine by data line, and described display and keyboard are all connected with described data-analyzing machine.
2. ultrasound wave Analysis of Partial Discharge instrument according to claim 1, is characterized in that: described ultrasonic sensor is normal probe formula ultrasonic sensor.
3. ultrasound wave Analysis of Partial Discharge instrument according to claim 1, is characterized in that: described keyboard is provided with USB interface.
4. ultrasound wave Analysis of Partial Discharge instrument according to claim 1, is characterized in that: described display is LCD display, and is provided with USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159061.2U CN204462316U (en) | 2015-03-20 | 2015-03-20 | A kind of ultrasound wave Analysis of Partial Discharge instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159061.2U CN204462316U (en) | 2015-03-20 | 2015-03-20 | A kind of ultrasound wave Analysis of Partial Discharge instrument |
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| Publication Number | Publication Date |
|---|---|
| CN204462316U true CN204462316U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520159061.2U Expired - Fee Related CN204462316U (en) | 2015-03-20 | 2015-03-20 | A kind of ultrasound wave Analysis of Partial Discharge instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749501A (en) * | 2015-03-20 | 2015-07-01 | 国家电网公司 | Ultrasonic wave partial discharge analyzer and analyzing method |
-
2015
- 2015-03-20 CN CN201520159061.2U patent/CN204462316U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749501A (en) * | 2015-03-20 | 2015-07-01 | 国家电网公司 | Ultrasonic wave partial discharge analyzer and analyzing method |
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Legal Events
| 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: 20150708 Termination date: 20180320 |