CN109212041A - The long-range real-time calibration method of transformer oil on-Line Monitor Device - Google Patents
The long-range real-time calibration method of transformer oil on-Line Monitor Device Download PDFInfo
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- CN109212041A CN109212041A CN201710521575.1A CN201710521575A CN109212041A CN 109212041 A CN109212041 A CN 109212041A CN 201710521575 A CN201710521575 A CN 201710521575A CN 109212041 A CN109212041 A CN 109212041A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Housings And Mounting Of Transformers (AREA)
- Testing Relating To Insulation (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of long-range real-time calibration method of transformer oil on-Line Monitor Device, this method is first sampled transformer oil, by laboratory testing oil dissolved gas component and levels, obtains laboratory testing data；Transformer oil on-Line Monitor Device carries out same day on-line checking, obtains the on-line checking data on the same day；Judge whether on-line checking data deviate with laboratory testing data, judgment criteria are as follows: the difference of on-line checking data and laboratory testing data is no more than ± the 10% of laboratory testing data；To the gas component for being more than judgment criteria, it is computed after corrected value and correction is made to transformer oil on-Line Monitor Device.This method is based on the off-line analysis detection data of transformer oil, online monitoring data is compared with off-line analysis detection data, make calibration in real time to on-Line Monitor Device, it is ensured that the accuracy of online monitoring data overcomes the defect that scene is demarcated using standard gas.
Description
Technical field
The present invention relates to a kind of long-range real-time calibration methods of transformer oil on-Line Monitor Device.
Background technique
Gases Dissolved in Transformer Oil chromatography detection technique (abbreviation DGA technology) is that current power industry diagnoses oil-filled transformation
The effective ways of device failure, due to its have the characteristics that without have a power failure, judge that failure accuracy rate is high, electric power preventive trial by its
Top priority is come, is found broad application in the power system.Laboratory Gas in Oil of Transformer chromatography detection technique, passes through one
The fixed period is sampled transformer oil and lab analysis detects, and judges the latent of inside transformer by analysis detection result
Volt property failure.In recent years, transformer oil on-line monitoring equipment based on oil dissolved gas detection technique promotes the use, and is real
The upgrading and supplement of room offline inspection technology are tested, it is advantageous that Gas in Oil of Transformer variation tendency situation can be continuously detected,
Timely early warning catastrophic discontinuityfailure, such as transformer turn-to-turn, layer short circuit catastrophic failure play positive guarantor to transformer safety operation
Barrier effect.In order to ensure transformer oil monitors the accuracy of analysis data, and the comparativity with off-line analysis data on-line, need
Periodically transformer oil on-Line Monitor Device is demarcated, it is ensured that the accuracy of transformer oil on-line analysis data.Currently, becoming
The calibration of depressor online oil monitoring device implements calibration using calibrating gas at the scene mostly, and calibrated error is big, demarcates operation
Low efficiency, and heavy workload.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of long-range real-time calibrations of transformer oil on-Line Monitor Device
Method, this method is based on the off-line analysis detection data of transformer oil, by online monitoring data and off-line analysis testing number
According to being compared, calibration is made in real time to on-Line Monitor Device, it is ensured that the accuracy of online monitoring data overcomes live use
The defect that standard gas is demarcated.
In order to solve the above technical problems, the long-range real-time calibration method of transformer oil on-Line Monitor Device of the present invention includes such as
Lower step:
Step 1: being sampled to transformer oil, and laboratory implementation gas chromatographic analysis is sent, detects Gas in Oil of Transformer group
Point and levels, obtain laboratory testing data；
Step 2: transformer oil on-Line Monitor Device carry out same day on-line checking, obtain same day Gas in Oil of Transformer component and
The on-line checking data of levels；
Step 3: judging same time transformer oil on-line checking data using laboratory testing data as the standard value of calibration
Whether deviate with laboratory testing data, judgment criteria are as follows: the difference of on-line checking data and laboratory testing data does not surpass
Cross ± the 10% of laboratory testing data；
Step 4: calculating corrected value automatically, and online to transformer oil according to corrected value to the gas component for being more than judgment criteria
Monitoring device is corrected automatically, calibration value=laboratory testing data/on-line checking data × original calibration value；
Step 5: this calibration value obtained to be replaced to the former calibration value of on-Line Monitor Device automatically, this calibration is completed.
Further, the Gas in Oil of Transformer component include hydrogen, carbon monoxide, carbon dioxide, methane, ethylene, ethane and
Acetylene.
Since the long-range real-time calibration method of transformer oil on-Line Monitor Device of the present invention uses above-mentioned technical proposal, i.e.,
This method is first sampled transformer oil, by laboratory testing oil dissolved gas component and levels, obtains laboratory inspection
Measured data；Transformer oil on-Line Monitor Device carries out same day on-line checking, obtains the on-line checking data on the same day；The online inspection of judgement
Whether measured data deviates with laboratory testing data, judgment criteria are as follows: on-line checking data and laboratory testing data it
Difference is no more than ± the 10% of laboratory testing data；To the gas component for being more than judgment criteria, it is computed after corrected value to transformation
Device online oil monitoring device makes correction.This method will be monitored on-line based on the off-line analysis detection data of transformer oil
Data are compared with off-line analysis detection data, make calibration in real time to on-Line Monitor Device, it is ensured that online monitoring data
Accuracy overcomes the defect that scene is demarcated using standard gas.
Specific embodiment
The long-range real-time calibration method of transformer oil on-Line Monitor Device of the present invention includes the following steps:
Step 1: being sampled to transformer oil, and laboratory implementation gas chromatographic analysis is sent, detects Gas in Oil of Transformer group
Point and levels, obtain laboratory testing data；
Step 2: transformer oil on-Line Monitor Device carry out same day on-line checking, obtain same day Gas in Oil of Transformer component and
The on-line checking data of levels；
Step 3: judging same time transformer oil on-line checking data using laboratory testing data as the standard value of calibration
Whether deviate with laboratory testing data, judgment criteria are as follows: the difference of on-line checking data and laboratory testing data does not surpass
Cross ± the 10% of laboratory testing data；
Step 4: calculating corrected value automatically, and online to transformer oil according to corrected value to the gas component for being more than judgment criteria
Monitoring device is corrected automatically, calibration value=laboratory testing data/on-line checking data × original calibration value；
Step 5: this calibration value obtained to be replaced to the former calibration value of on-Line Monitor Device automatically, this calibration is completed.
Preferably, the Gas in Oil of Transformer component includes hydrogen, carbon monoxide, carbon dioxide, methane, ethylene, second
Alkane and acetylene.By levels of the analysis detection above-mentioned gas in transformer oil, fault pre-alarming can be made to transformer,
This method is compared by laboratory and online by the analysis detecting data of above-mentioned gas, thus to transformer oil on-Line Monitor Device
Make real-time calibration.
This method makes real-time calibration to transformer oil on-Line Monitor Device by laboratory testing data, it is ensured that transformer
The accurate reliability of online oil monitoring device detection data, overcoming the device need to manually be marked by calibrating gas at the scene
Fixed defect effectively reduces error brought by artificial demarcate, improves the efficiency of calibration operation, reduces the work of calibration operation
It measures.
Claims (2)
1. a kind of long-range real-time calibration method of transformer oil on-Line Monitor Device, it is characterised in that this method includes following step
It is rapid:
Step 1: being sampled to transformer oil, and laboratory implementation gas chromatographic analysis is sent, detects Gas in Oil of Transformer group
Point and levels, obtain laboratory testing data；
Step 2: transformer oil on-Line Monitor Device carry out same day on-line checking, obtain same day Gas in Oil of Transformer component and
The on-line checking data of levels；
Step 3: judging same time transformer oil on-line checking data using laboratory testing data as the standard value of calibration
Whether deviate with laboratory testing data, judgment criteria are as follows: the difference of on-line checking data and laboratory testing data does not surpass
Cross ± the 10% of laboratory testing data；
Step 4: calculating corrected value automatically, and online to transformer oil according to corrected value to the gas component for being more than judgment criteria
Monitoring device is corrected automatically, calibration value=laboratory testing data/on-line checking data × original calibration value；
Step 5: this calibration value obtained to be replaced to the former calibration value of on-Line Monitor Device automatically, this calibration is completed.
2. the long-range real-time calibration method of transformer oil on-Line Monitor Device according to claim 1, it is characterised in that: institute
Stating Gas in Oil of Transformer component includes hydrogen, carbon monoxide, carbon dioxide, methane, ethylene, ethane and acetylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521575.1A CN109212041A (en) | 2017-06-30 | 2017-06-30 | The long-range real-time calibration method of transformer oil on-Line Monitor Device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710521575.1A CN109212041A (en) | 2017-06-30 | 2017-06-30 | The long-range real-time calibration method of transformer oil on-Line Monitor Device |
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| CN109212041A true CN109212041A (en) | 2019-01-15 |
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| CN201710521575.1A Pending CN109212041A (en) | 2017-06-30 | 2017-06-30 | The long-range real-time calibration method of transformer oil on-Line Monitor Device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726796A (en) * | 2019-07-15 | 2020-01-24 | 山东五岳电器有限公司 | Calibration method and system for transformer oil chromatography online monitoring gas model, monitor and monitoring method |
| CN111413491A (en) * | 2020-04-11 | 2020-07-14 | 深圳市资通科技有限公司 | Oil-filled equipment insulation aging evaluation platform |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4654806A (en) * | 1984-03-30 | 1987-03-31 | Westinghouse Electric Corp. | Method and apparatus for monitoring transformers |
| CN103018344A (en) * | 2012-12-07 | 2013-04-03 | 汉中供电局 | Calibrating method of color spectrum in oil on-line detecting device |
-
2017
- 2017-06-30 CN CN201710521575.1A patent/CN109212041A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4654806A (en) * | 1984-03-30 | 1987-03-31 | Westinghouse Electric Corp. | Method and apparatus for monitoring transformers |
| CN103018344A (en) * | 2012-12-07 | 2013-04-03 | 汉中供电局 | Calibrating method of color spectrum in oil on-line detecting device |
Non-Patent Citations (3)
| Title |
|---|
| 朱红梅等: "电力变压器油中溶解气体在线监测装置校验方法研究", 《吉林电力》 * |
| 王仕荣: "变压器油色谱在线监测系统的应用", 《云南电力技术》 * |
| 黄皓炜: "变压器油中溶解气体在线监测系统的原理及应用", 《浙江电力》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726796A (en) * | 2019-07-15 | 2020-01-24 | 山东五岳电器有限公司 | Calibration method and system for transformer oil chromatography online monitoring gas model, monitor and monitoring method |
| CN111413491A (en) * | 2020-04-11 | 2020-07-14 | 深圳市资通科技有限公司 | Oil-filled equipment insulation aging evaluation platform |
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Application publication date: 20190115 |