CN203629674U - Measuring device of high voltage gas insulated switch mechanical vibration - Google Patents
Measuring device of high voltage gas insulated switch mechanical vibration Download PDFInfo
- Publication number
- CN203629674U CN203629674U CN201320685299.XU CN201320685299U CN203629674U CN 203629674 U CN203629674 U CN 203629674U CN 201320685299 U CN201320685299 U CN 201320685299U CN 203629674 U CN203629674 U CN 203629674U
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- vibration
- device housings
- insulated switch
- measuring device
- mechanical vibration
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- 238000005259 measurement Methods 0.000 claims abstract description 10
- 239000012212 insulator Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 13
- 230000003321 amplification Effects 0.000 claims description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 230000003750 conditioning effect Effects 0.000 abstract 2
- 238000004458 analytical method Methods 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010835 comparative analysis Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a measuring device of high voltage gas insulated switch mechanical vibration, and a problem that the abnormal mechanical vibration of a high voltage gas insulated switch is not timely and accurate is solved. The measuring device comprises a closed equipment shell (1) which is provided with a basin type insulator (3) which is fixedly provided with a metal guide rod (4). The closed equipment shell (1) is filled with an SF6 gas. A vibration sensor (5) is arranged on the closed equipment shell (1) and is connected with the input end of a signal amplifying unit (7) through a coaxial cable (6). The output end of the signal amplifying unit (7) is connected with the input end of a signal conditioning unit (8). The output end of the signal conditioning unit (8) is connected with a computer (10) through a USB wire (9). The measuring device has the advantages of simple structure, convenient operation and an accurate measurement result.
Description
Technical field
The utility model relates to a kind of measurement mechanism of mechanical vibration, particularly a kind of measurement mechanism of high pressure GIS plant machinery vibration.
Background technology
Gas-insulated switch (GIS) is used more and more widely owing to having high operational reliability.Along with the electric pressure of electrical network improves constantly, require electrical equipment volume little, reliable, be convenient to safeguard.Gas insulated combined electrical equipment is popular with the masses of users because having these advantages, in order to guarantee gas insulated combined electrical equipment safe operation, extends as far as possible the time between overhauls(TBO), predict inner latency fault.In the actual motion of GIS, except discharging fault, mechanicalness fault is also a large main cause that causes accident to occur.So-called mechanical fault refers in the time there is some defect in GIS, as switch contact contact is abnormal, when housing docking imbalance, guide rod slight bending etc., now can there is not discharging fault, but the alternation electric power, the electromagnetic force that transformer iron core produces etc. that produce due to alternating current in conductor can cause GIS to produce mechanicalness motion, due to the existence of mechanical defect, it can produce abnormal transient vibration signal outside normal vibration.The abnormal vibrations of GIS has very large harm to GIS body, and Long-term Vibration may make bolt looseness, causes gas leakage, and pressure decreased causes insulation fault; Can cause damage to insulator and insulated column, can affect the firm of earthing of casing point.Prior art does not also have scientific and reasonable GIS mechanicalness to be vibrated to the device detecting, exist to improper vibration detection not in time with inaccurate problem.
Summary of the invention
The utility model provides the measurement mechanism of a kind of gases at high pressure insulated switch mechanical vibration, solved to the improper mechanical vibration of gases at high pressure insulated switch not in time with inaccurate problem.
The measurement mechanism of a kind of gases at high pressure insulated switch mechanical vibration, comprise the device housings of sealing, in device housings, be provided with disc insulator, on disc insulator, be fixedly installed metal guide rod, in the device housings of sealing, be filled with SF6 gas, on device housings, be provided with vibration transducer, vibration transducer is connected with the input end of signal amplification unit by concentric cable, the output terminal of signal amplification unit is connected with the input end of signal condition unit, and the output terminal of signal condition unit links together by USB line and computing machine.
Vibration transducer is fixedly installed on device housings by binding strap.On device housings (1), be provided with multiple vibration transducers.
The utility model utilizes multiple sensors as measuring unit, by the signal condition unit of the composition such as amplifier, capture card, simulating signal is changed into digital signal, then by USB line, optical fiber or radio transmission means etc., digital data transmission is processed to computing machine; Related GIS machinery vibration analysis method is in order to show size, feature and the hazard level of GIS mechanical oscillation signal based on principles such as vibration signal time domain, frequency-domain analysis and statistics.Simple in structure, easy to operate.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model.
Embodiment
The measurement mechanism of a kind of gases at high pressure insulated switch mechanical vibration, comprise the device housings 1 of sealing, in device housings 1, be provided with disc insulator 3, on disc insulator 3, be fixedly installed metal guide rod 4, in the device housings 1 of sealing, be filled with SF6 gas, on device housings 1, be provided with vibration transducer 5, vibration transducer 5 is connected with the input end of signal amplification unit 7 by concentric cable 6, the output terminal of signal amplification unit 7 is connected with the input end of signal condition unit 8, the output terminal of signal condition unit 8 links together by USB line 9 and computing machine 10.
Vibration transducer 5 is fixedly installed on device housings 1 by binding strap, is provided with multiple vibration transducers on device housings 1.
The power supply of signal amplification unit 7 of the present utility model should meet input ac voltage 220V, output dc voltage is that 5V, maximum current are 2A, and possesses 20dB, 40dB, tri-shelves of 60dB.
For the method that the machinery vibration analysis software of the utility model exploitation adopts, comprise three kinds of analysis means such as the test of the GIS housing natural frequency of vibration, time-domain waveform analysis, frequency-domain analysis and filing data analysis.First, high pressure GIS is carried out to natural frequency of vibration test; Secondly, measurement result is carried out to time-domain waveform analysis, comprise the analysis means such as the Eigenvalues analysis such as amplitude, pulse length, steepness of individual pulse and the recurrent interval of multiple pulses, amplitude distribution, analysis based on wavelet for denoise; Then carry out frequency-domain analysis, comprise the analysis means such as waveform frequency spectrum distribution, power frequency and frequency multiplication respective components amplitude analysis, the contrast of multiple-pulse frequency domain distribution; Finally carry out filing data analysis; Comprise the comparative analysis of same category of device mechanical vibration data, same device history data comparative analysis etc.
On-the-spot concrete implementation step is: first, connect measuring system.First utilize concentric cable etc. that sensor, signal amplification unit, signal condition unit and processing terminal are connected.Secondly, utilize bandage to be fixed on GIS device housings sensor, measure.Finally, utilize that the software that analytical approach is write is stored, analytic signal.
Claims (2)
1. the measurement mechanism of gases at high pressure insulated switch mechanical vibration, comprise the device housings (1) of sealing, in device housings (1), be provided with disc insulator (3), on disc insulator (3), be fixedly installed metal guide rod (4), in the device housings (1) of sealing, be filled with SF6 gas, it is characterized in that, on device housings (1), be provided with vibration transducer (5), vibration transducer (5) is connected with the input end of signal amplification unit (7) by concentric cable (6), the output terminal of signal amplification unit (7) is connected with the input end of signal condition unit (8), the output terminal of signal condition unit (8) links together by USB line (9) and computing machine (10).
2. the measurement mechanism of a kind of gases at high pressure insulated switch according to claim 1 mechanical vibration, it is characterized in that, vibration transducer (5) is fixedly installed on device housings (1) by binding strap, on device housings (1), is provided with multiple vibration transducers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685299.XU CN203629674U (en) | 2013-11-02 | 2013-11-02 | Measuring device of high voltage gas insulated switch mechanical vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685299.XU CN203629674U (en) | 2013-11-02 | 2013-11-02 | Measuring device of high voltage gas insulated switch mechanical vibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629674U true CN203629674U (en) | 2014-06-04 |
Family
ID=50816140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320685299.XU Expired - Fee Related CN203629674U (en) | 2013-11-02 | 2013-11-02 | Measuring device of high voltage gas insulated switch mechanical vibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629674U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352589A (en) * | 2015-10-13 | 2016-02-24 | 广西电网有限责任公司电力科学研究院 | Device and method for testing distribution characteristics of vibration signals of gas insulation combined electric appliance |
| CN106092544A (en) * | 2016-07-04 | 2016-11-09 | 国网江苏省电力公司南京供电公司 | The disc insulator of a kind of GIS loosens monitoring method |
| CN107024343A (en) * | 2017-03-23 | 2017-08-08 | 国家电网公司 | A kind of GIS disc insulators fixing bolt loosening test system |
| CN107589359A (en) * | 2017-09-08 | 2018-01-16 | 国网山东省电力公司淄博供电公司 | Two insulation monitoring and warning device automatic Synchronization operation methods |
| CN110068753A (en) * | 2019-05-16 | 2019-07-30 | 国网山西省电力公司检修分公司 | GIS detecting device for basin type insulator and method based on case vibration signal |
-
2013
- 2013-11-02 CN CN201320685299.XU patent/CN203629674U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352589A (en) * | 2015-10-13 | 2016-02-24 | 广西电网有限责任公司电力科学研究院 | Device and method for testing distribution characteristics of vibration signals of gas insulation combined electric appliance |
| CN106092544A (en) * | 2016-07-04 | 2016-11-09 | 国网江苏省电力公司南京供电公司 | The disc insulator of a kind of GIS loosens monitoring method |
| CN106092544B (en) * | 2016-07-04 | 2019-04-09 | 国网江苏省电力公司南京供电公司 | A kind of disc insulator loosening monitoring method of GIS |
| CN107024343A (en) * | 2017-03-23 | 2017-08-08 | 国家电网公司 | A kind of GIS disc insulators fixing bolt loosening test system |
| CN107589359A (en) * | 2017-09-08 | 2018-01-16 | 国网山东省电力公司淄博供电公司 | Two insulation monitoring and warning device automatic Synchronization operation methods |
| CN107589359B (en) * | 2017-09-08 | 2020-02-18 | 国网山东省电力公司淄博供电公司 | Automatic parallel operation method for two insulation monitoring devices |
| CN110068753A (en) * | 2019-05-16 | 2019-07-30 | 国网山西省电力公司检修分公司 | GIS detecting device for basin type insulator and method based on case vibration signal |
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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 |
Granted publication date: 20140604 Termination date: 20181102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |