CN103439680A - Calibration method for ultrahigh frequency partial discharge state detecting instrument - Google Patents
Calibration method for ultrahigh frequency partial discharge state detecting instrument Download PDFInfo
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- CN103439680A CN103439680A CN2013103895358A CN201310389535A CN103439680A CN 103439680 A CN103439680 A CN 103439680A CN 2013103895358 A CN2013103895358 A CN 2013103895358A CN 201310389535 A CN201310389535 A CN 201310389535A CN 103439680 A CN103439680 A CN 103439680A
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Abstract
The invention relates to a calibration method for an ultrahigh frequency partial discharge state detecting instrument. The calibration method for the ultrahigh frequency partial discharge state detecting instrument includes the following steps that the output end of a partial discharge pulse signal generator is connected to the input end of the ultrahigh frequency partial discharge state detecting instrument through a high-frequency coaxial cable, and a power source is switched in; the partial discharge pulse signal generator is switched on to output pulse signals, and whether the ultrahigh frequency partial discharge state detecting instrument outputs effective test data or not is observed; the output signals of the partial discharge pulse signal generator are adjusted from small to large if the effective test data are detected, and the response characteristics of ultrahigh frequency partial discharge state detecting instrument to the partial discharge pulse input signals are recorded. Compared with the prior art, the calibration method for the ultrahigh frequency partial discharge state detecting instrument can lower calibration complexity and improve calibration accuracy.
Description
Technical field
The present invention relates to a kind ofly, especially relate to a kind of ultrahigh frequency office and put state-detection instrument method of calibration.
Background technology
Testing tool is put in ultrahigh frequency office generally can be divided into that tester is put in hand ultra-high frequency office, tester is put in portable ultrahigh frequency office and test macro is put in centimetre-sized location ultrahigh frequency office.Tester is put generally with 1～2 ultra-high frequency signal treatment channel in hand ultra-high frequency office, adopts the embedded type CPU chip, instrument take show test the ultra-high frequency signal amplitude as main, generally all with time domain collection of illustrative plates or other relevant collection of illustrative plates.Tester is put in portable ultrahigh frequency office, refers to and is with 2～4 uhf channels, can control front end signal conditioning and data collector, and testing apparatus is put in the office of data analysis and diagnosis.Office of ultrahigh frequency office puts the state-detection instrument and generally is comprised of sensor, signal regulating device and data analysis, storage, display device, realizes the Partial discharge signal acquisition process, completes type analysis and the discharge level assessment of Partial discharge signal.Detecting instrument precision and validity that whether accurately directly impact detects, therefore need to a kind ofly can carry out the method for verification to the parameter of detecting instrument, guarantee detection accuracy
summary of the invention
Purpose of the present invention is exactly in order to overcome the defect that above-mentioned prior art exists, to provide a kind of ultrahigh frequency office to put state-detection instrument method of calibration.
Purpose of the present invention can be achieved through the following technical solutions:
State-detection instrument method of calibration is put in a kind of ultrahigh frequency office, comprises the following steps:
1) output terminal of office being put to pulse signal generator is connected to by coaxial cable for high frequency the input end that the state-detection instrument is put in ultrahigh frequency office, and switches on power;
2) the pulse signal generator output pulse signal is put in the office of opening, and observation ultrahigh frequency office puts the state-detection instrument and whether exports effective detection data;
3) if effective detection data detected, the pulse producer output signal is put in adjusting office from small to large, records ultrahigh frequency office and puts the state-detection instrument and play a game and put the response characteristic of pulse input signal.
Ultrahigh frequency office puts the state-detection instrument response characteristic of putting pulse input signal of playing a game and comprises that minimum detectable pulse ability, maximum can detect pulse ability, detection signal amplitude.
If the state-detection instrument is put with pattern-recognition and intelligent diagnostics function in ultrahigh frequency office, the pattern-recognition of state-detection instrument and accuracy and the integrity of intelligent diagnostics function are put in the output signal check ultrahigh frequency office of by adjusting office, putting pulse signal generator.
Environment temperature during verification is 5 ° of C～50 ° C, and ambient humidity is 0%～80%.
Compared with prior art, the present invention can carry out verification to the signal gathering unit of detecting instrument separately, reduces the complexity of verification, and improves the accuracy of verification; Can play a game simultaneously and put pulse signal and carry out the secondary adjusting, increase the scopes such as the amplitude of its output and frequency, check the applicability of calibration equipment, the verification accuracy is higher.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment
State-detection instrument method of calibration is put in a kind of ultrahigh frequency office, while by the method, carrying out verification, environment temperature need to be controlled between 5 ° of C～50 ° C, and ambient humidity is between 0%～80%, and its concrete checking procedure comprises the following steps:
1) output terminal of office being put to pulse signal generator is connected to by coaxial cable for high frequency the input end that the state-detection instrument is put in ultrahigh frequency office, and switches on power;
2) the pulse signal generator output pulse signal is put in the office of opening, and observation ultrahigh frequency office puts the state-detection instrument and whether exports effective detection data;
3) if effective detection data detected, the pulse producer output signal is put in adjusting office from small to large, record ultrahigh frequency office and put the state-detection instrument and play a game and put the response characteristic of pulse input signal, comprise that minimum detectable pulse ability, maximum can detect the parameters such as pulse ability, detection signal amplitude.
If the state-detection instrument is put with pattern-recognition and intelligent diagnostics function in the ultrahigh frequency office of detecting, the output signal of by adjusting office, putting pulse signal generator checks ultrahigh frequency office to put the pattern-recognition of state-detection instrument and accuracy and the integrity of intelligent diagnostics function.
After completing above-mentioned verification, tidy up pertinent instruments and take care of by the special messenger is special.The check results of qualified instrument, ultrahigh frequency office puts detector minimum detectable pulse amplitude and is not more than a certain preset value; For possessing innings instrument of mode playback recognition function, single noiseless office puts under source module, and the accuracy rate that typical types is put in office should be greater than 80%.
Claims (4)
1. state-detection instrument method of calibration is put in a ultrahigh frequency office, it is characterized in that, comprises the following steps:
1) output terminal of office being put to pulse signal generator is connected to by coaxial cable for high frequency the input end that the state-detection instrument is put in ultrahigh frequency office, and switches on power;
2) the pulse signal generator output pulse signal is put in the office of opening, and observation ultrahigh frequency office puts the state-detection instrument and whether exports effective detection data;
3) if effective detection data detected, the pulse producer output signal is put in adjusting office from small to large, records ultrahigh frequency office and puts the state-detection instrument and play a game and put the response characteristic of pulse input signal.
2. state-detection instrument method of calibration is put in a kind of ultrahigh frequency according to claim 1 office, it is characterized in that, ultrahigh frequency office puts the state-detection instrument response characteristic of putting pulse input signal of playing a game and comprises that minimum detectable pulse ability, maximum can detect pulse ability, detection signal amplitude.
3. state-detection instrument method of calibration is put in a kind of ultrahigh frequency according to claim 1 office, it is characterized in that, if the state-detection instrument is put with pattern-recognition and intelligent diagnostics function in ultrahigh frequency office, the pattern-recognition of state-detection instrument and accuracy and the integrity of intelligent diagnostics function are put in the output signal check ultrahigh frequency office of by adjusting office, putting pulse signal generator.
4. state-detection instrument method of calibration is put in a kind of ultrahigh frequency according to claim 1 office, it is characterized in that, environment temperature during verification is 5 ℃～50 ℃, and ambient humidity is 0%～80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103895358A CN103439680A (en) | 2013-08-30 | 2013-08-30 | Calibration method for ultrahigh frequency partial discharge state detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103895358A CN103439680A (en) | 2013-08-30 | 2013-08-30 | Calibration method for ultrahigh frequency partial discharge state detecting instrument |
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| Publication Number | Publication Date |
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| CN103439680A true CN103439680A (en) | 2013-12-11 |
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| CN2013103895358A Pending CN103439680A (en) | 2013-08-30 | 2013-08-30 | Calibration method for ultrahigh frequency partial discharge state detecting instrument |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007371A (en) * | 2014-05-15 | 2014-08-27 | 深圳供电局有限公司 | Device and method used for checking partial discharge signals of cable |
| CN104849685A (en) * | 2015-04-27 | 2015-08-19 | 上海交通大学 | Partial discharge detector performance evaluation method |
| CN104849686A (en) * | 2015-04-27 | 2015-08-19 | 上海交通大学 | Partial discharge detector performance evaluation system |
| CN106405341A (en) * | 2016-07-15 | 2017-02-15 | 国网甘肃省电力公司电力科学研究院 | Method used for reducing partial discharge ultrahigh frequency signal |
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| CN202189141U (en) * | 2010-12-31 | 2012-04-11 | 保定天威集团有限公司 | Calibrator for partial discharge detection equipment |
| CN102967808A (en) * | 2012-11-23 | 2013-03-13 | 江西省电力科学研究院 | Handheld partial discharge detector of transformer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007371A (en) * | 2014-05-15 | 2014-08-27 | 深圳供电局有限公司 | Device and method used for checking partial discharge signals of cable |
| CN104849685A (en) * | 2015-04-27 | 2015-08-19 | 上海交通大学 | Partial discharge detector performance evaluation method |
| CN104849686A (en) * | 2015-04-27 | 2015-08-19 | 上海交通大学 | Partial discharge detector performance evaluation system |
| CN104849686B (en) * | 2015-04-27 | 2017-10-31 | 上海交通大学 | Partial discharge detector's performance evaluation system |
| CN104849685B (en) * | 2015-04-27 | 2018-01-19 | 上海交通大学 | Partial discharge detector's performance estimating method |
| CN106405341A (en) * | 2016-07-15 | 2017-02-15 | 国网甘肃省电力公司电力科学研究院 | Method used for reducing partial discharge ultrahigh frequency signal |
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Application publication date: 20131211 |