CN203465246U - System for detecting performance of transformer oil chromatograph on-line monitoring device - Google Patents
System for detecting performance of transformer oil chromatograph on-line monitoring device Download PDFInfo
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- CN203465246U CN203465246U CN201320459018.9U CN201320459018U CN203465246U CN 203465246 U CN203465246 U CN 203465246U CN 201320459018 U CN201320459018 U CN 201320459018U CN 203465246 U CN203465246 U CN 203465246U
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Abstract
The utility model discloses a system for detecting performance of transformer oil chromatograph on-line monitoring device. An off-line transformer oil chromatograph analyzer and a transformer oil chromatograph on-line testing unit connected to a detection system are compared, so that the performance of the transformer oil chromatograph on-line monitoring device is detected. According to the system for detecting the performance of the transformer oil chromatograph on-line monitoring device, different on-line monitoring devices can be tested.
Description
Technical field
The utility model relates to high voltage power transmission field, and spy relates to a kind of transformer oil chromatographic on-Line Monitor Device performance detecting system.
Background technology
Power transformer, high-voltage shunt reactor are as one of visual plant of electric system, and its operational reliability directly affects the safe operation of electric system.Dissolved gas analysis (Dissolved Gases Analysis, be called for short DGA) be in current electric system, to diagnose the main method of oil-filled electric equipment built-in electrical insulation fault, transformer oil chromatographic on-Line Monitor Device combines on-line monitoring and Intelligent fault diagnostic techniques and conventional DGA method.Status of electric power detects system just at gradual perfection at present, and oil chromatography on-line monitoring is the important foundation that realizes Condition Maintenance Method of Transformer.But the structure of oil chromatography on-line monitoring and testing laboratory's chromatographic work station is very different, gordian technique difference is also very large, and the performance of product is very different.In order to ensure the oil chromatography on-Line Monitor Device dependable performance that enters network operation, be necessary the detection that networks before monitoring device networks.But current domestic detection system and the method that is applicable to oil chromatography on-Line Monitor Device batch detection that there is no, testing cost is high, inefficiency.
In view of this, be necessary to provide a kind of transformer oil chromatographic on-Line Monitor Device performance detecting system, to address the above problem.
Summary of the invention
The purpose of this utility model is: for the defect of prior art, the utility model provides an open oil chromatography on-Line Monitor Device performance detecting system, the on-Line Monitor Device of distinct methods or principle can be installed, use the surveying instrument of verification to carry out transmission of quantity value, the performance of many groups of different on-Line Monitor Device is detected simultaneously.
The technical scheme that the utility model adopts is: a kind of oil chromatography on-Line Monitor Device performance detecting system, and described system comprises oil sample dispensing unit, on-line testing unit and Chromatographic Analysis of Transformer oil instrument, it is characterized in that:
The concentrated oil sample that described oil sample dispensing unit adopts the principle preparation of concentration and dilution to contain certain concentration gas, is used for on-line testing unit;
Described on-line testing unit be one with the oil tank of transformer of circulating oil path; In described circulating oil path, string has circulating oil pump and oil circuit attemperating unit; Described transformer oil box top is provided with oil hole and air pressure measured hole; Described on-line testing unit is with a plurality of in order to connect the test interface of on-Line Monitor Device, and test interface is distributed in the pipeline of transformer oil box outer wall and circulating oil path; Described transformer oil lower box part is provided with sample tap, is used for taking out transformer oil sample for off-line test; Described transformer oil lower box part is provided with air-blowing import, is used for continuing to blast drying nitrogen to replace fuel-displaced middle characteristic gas after test, and what formation can be for next time experiment does not contain the pure oil sample of characteristic gas; Described transformer oil lower box part is provided with fuel outlet, for the transformer oil of fuel tank is emitted;
Described Chromatographic Analysis of Transformer oil instrument, is used for the oil sample in circulating oil path to carry out off-line analysis, and its measuring accuracy is demarcated with calibrating gas.
Oil chromatography on-Line Monitor Device performance detecting system as above, is characterized in that, test interface place is provided with temperature measuring equipment, and its measurement range is-30 ℃ ~ 60 ℃, and uncertainty of measurement≤0.3 ℃, for detection of the transformer oil temperature at test interface place.
Oil chromatography on-Line Monitor Device performance detecting system as above, is characterized in that, the concentrated oil sample volume that oil sample dispensing unit configures is constant and is not more than 1L.
Oil chromatography on-Line Monitor Device performance detecting system as above, is characterized in that, oil tank of transformer cumulative volume is constant and is not less than 50L.
Oil chromatography on-Line Monitor Device performance detecting system as above, is characterized in that, oil hole is except for to pipeline injection transformer oil, pressure that can also be when being filled with the drying nitrogen analogue transformer operation of certain pressure in pipeline.
Oil chromatography on-Line Monitor Device performance detecting system as above, is characterized in that, the barometric surveying hole of described transformer oil box top is provided with rain glass, and described barometric measurement range is 30kPa ~ 110kPa, uncertainty of measurement≤0.2kPa.
Oil chromatography on-Line Monitor Device performance detecting system as above, is characterized in that, the oil circuit attemperating unit temperature controlling range being connected in series in described circulating oil path comprises and is not limited to-30 ℃ ~ 60 ℃.
Oil chromatography on-Line Monitor Device performance detecting system as above, is characterized in that, test interface is no less than 20.
The beneficial effects of the utility model are: the utility model provides a kind of detection system that is applicable to batch detection oil chromatography on-Line Monitor Device performance, for the type approval test of on-Line Monitor Device or network and detect, that this system has is easy to operate, realize that cost is low, the reliable feature of data and be applicable to the on-Line Monitor Device based on various principles.
Accompanying drawing explanation
Fig. 1 is according to the on-line testing cell schematics of exemplary transformer oil chromatographic on-Line Monitor Device performance detecting system of the present utility model.
Embodiment
In order to understand better the utility model, below in conjunction with embodiment, further illustrate content of the present utility model, but content of the present utility model is not only confined to the following examples.Those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values are equally within the listed claims limited range of the application.
Description of symbols in accompanying drawing: 1-test interface, 2-oil tank of transformer, 3-pouring orifice, 4-barometric surveying hole, 5-sample tap, 6-air-blowing import, 7-fuel outlet, 8-circulating oil pump, 9-oil circuit attemperating unit, 10-circulating oil path.
A kind of oil chromatography on-Line Monitor Device performance detecting system that the utility model provides, described system comprises oil sample dispensing unit, on-line testing unit, Chromatographic Analysis of Transformer oil instrument.
The concentrated oil sample that described oil sample dispensing unit adopts the principle preparation of concentration and dilution to contain certain concentration gas, is characterized in that configured concentrated oil sample volume is constant and is not more than 1L.
Described on-line testing unit is that a cumulative volume is constant and the oil tank of transformer 2 with circulating oil path 10 that is not less than 50L; In described circulating oil path 10, string has circulating oil pump 8 and oil circuit attemperating unit 9 and the good heat-insulation layer of external application; Described oil tank of transformer 2 tops are provided with oil hole 3 and air pressure measured hole 4, and oil hole 3 is except being used for to pipeline injection transformer oil, the pressure while can also be used to be filled with the drying nitrogen analogue transformer operation of certain pressure in pipeline; Described on-line testing unit has good sealing property, can bear additional 100kPa air pressure without leakage; Described on-line testing unit is with being no less than 20 in order to connect the test interface 1 of on-Line Monitor Device, and test interface 1 is distributed in the pipeline of oil tank of transformer 2 outer walls and circulating oil path 10; Test interface 1 place is provided with temperature measuring equipment (not shown), and its measurement range is-30 ℃ ~ 60 ℃, and the transformer oil temperature at test interface place can be detected in uncertainty of measurement≤0.3 ℃; Described oil tank of transformer 2 bottoms are provided with sample tap 5, are used for taking out transformer oil sample for off-line test; Described oil tank of transformer 2 bottoms are provided with air-blowing import 6, are used for continuing to blast drying nitrogen to replace fuel-displaced middle characteristic gas after test, and what formation can be for next time experiment does not contain the pure oil sample of characteristic gas; Described oil tank of transformer 2 bottoms are provided with fuel outlet, for the transformer oil of fuel tank is emitted.
Rain glass can be installed in the barometric surveying hole 4 at described oil tank of transformer 2 tops, and described barometric measurement range is 30kPa ~ 110kPa, uncertainty of measurement≤0.2kPa;
In described circulating oil path 10, oil circuit attemperating unit 9 temperature controlling range of serial connection comprise and are not limited to-30 ℃ ~ 60 ℃.
Described Chromatographic Analysis of Transformer oil instrument, is used for the oil sample in circulating oil path 10 to carry out off-line analysis, its measuring accuracy available standards Demarcate Gas.
Described transformer on-line testing unit is by injecting the concentrated oil sample of characteristic gas concentration, component various combination and utilizing on-Line Monitor Device to monitor, the result of the result of monitoring and the measurement of described Chromatographic Analysis of Transformer oil instrument is compared, thereby reach the object that detects transformer oil chromatographic on-Line Monitor Device performance.
Owing to can injecting by calculating the transformer oil of the characteristic gas that contains different solubility, different component in this pipeline, test interface can connect different on-Line Monitor Device by adapter coupling, therefore can test various on-Line Monitor Device.The oil test pipeline of this structure not only possesses feature easy to maintenance, and test when being convenient to a plurality of on-Line Monitor Device, has greatly improved detection efficiency.
Its using method of the performance detecting system that the utility model provides, comprises the steps:
A), according to test purpose, establishment testing scheme, calculates characteristic gas amount used while concentrating oil sample configuration;
B) the concentrated oil sample 1 ~ n that utilizes the configuration of oil sample dispensing unit to contain characteristic gas;
C) the turnover oil pipe of oil chromatography on-Line Monitor Device to be detected is connected according to normal operating condition with test macro;
D) the blank oil sample that does not contain characteristic gas is injected to online test cell;
E) the high concentration oil sample that contains characteristic gas 1 is injected to online test cell;
F) starting circulating oil pump fully mixes transformer oil;
G) by oil hole, to on-line testing unit, apply particular preset pressure, start-up temperature control device, temperature of oil in transformer is adjusted to particular preset temperature, when 2 ℃ of the equal < of deviation of all measurement interfaces place temperature measuring equipment measured temperature and preset temperature, think that the oil temperature in on-line testing unit has reached preset temperature;
H) start oil chromatography on-Line Monitor Device, it is set and measures interval, when on-Line Monitor Device is measured, the analysis of off-line oil chromatography is carried out in sampling;
I) cancel tank pressure, close circulating oil pump, high concentration oil sample 2 is injected to online test cell, repeat f ~ h, in like manner according to test cycle, carry out high concentration oil sample 3 ~ n repeating step f ~ h;
J) by comparison on-line measurement data and off-line analysis data, the measurement performance (as performances such as measuring error, cross-sensitivity, minimal detection period, measuring repeatabilities) of check on-Line Monitor Device;
K) test is by adjusting institute's applied pressure, the sealing property of demo plant; By adjusting oily preset temperature, the performance of demo plant under the different running statuses of transformer.
After off-test, by air-blowing mouth, to online testing device, continue to inject drying nitrogen, the oil sample in on-line testing unit is carried out to degassed processing, be prepared into containing the blank gas of characteristic gas, not prepare against to detect next time and use.
Embodiment 1: the cross-sensitivity of demo plant
A) according to test purpose, establishment testing scheme, the characteristic gas content while calculating concentrated oil sample configuration:
Cross-sensitivity is the size impact that the measurement of a certain gas content should not be subject to other gas componant.Need to configure two parts of oil samples, one CO content >1000 μ L/L, CO2 content >1000 μ L/L, H
2content <50 μ L/L, requires the accuracy of measurement of hydrogen to meet the requirements; Its two CO content >1000 μ L/L, CO2 content >1000 μ L/L, hydrogen H
2content >500 μ L/L, hydrocarbon gas content <10 μ L/L requires the accuracy of measurement of hydro carbons to meet the requirements.For the oil sample in on-line testing unit is met the requirements, two parts of each 1L of configurable concentrated oil sample, oil sample one CO content: 60000 μ L/L, CO2 content: 60000 μ L/L, H
2content: 1000 μ L/L; Oil sample 2:H
2content: 25000 μ L/L, acetylene content 250 μ L/L.
B) concentrated oil sample 1,2 each 1L that utilize the configuration of oil sample dispensing unit to contain characteristic gas;
C) the turnover oil pipe of oil chromatography on-Line Monitor Device to be detected is connected according to normal operating condition with test macro;
D) the blank oil sample that does not contain characteristic gas is injected to online test cell;
E) the high concentration oil sample that contains characteristic gas 1 is injected to online test cell;
F) starting circulating oil pump fully mixes transformer oil;
G) by oil hole, to on-line testing unit, apply particular preset pressure 30kPa, start-up temperature control device, temperature of oil in transformer is adjusted to 60 ℃, when 2 ℃ of the equal < of deviation of all measurement interfaces place temperature measuring equipment measured temperature and preset temperature, think that the oil temperature in on-line testing unit has reached preset temperature;
H) start oil chromatography on-Line Monitor Device, when on-Line Monitor Device is measured, the analysis of off-line oil chromatography is carried out in sampling;
I) cancel tank pressure, close circulating oil pump, high concentration oil sample 2 is injected to online test cell, repeat f ~ h;
J), by comparison on-line measurement data and off-line analysis data, the measurement performance of check on-Line Monitor Device, provides conclusion report.
K) after off-test, by air-blowing mouth, to online testing device, continue to inject drying nitrogen, the oil sample in on-line testing unit is carried out to degassed processing, be prepared into containing the blank gas of characteristic gas, not prepare against to detect next time and use.
The content not being described in detail in this instructions belongs to the known prior art of professional and technical personnel in the field.
Claims (8)
1. an oil chromatography on-Line Monitor Device performance detecting system, described system comprises oil sample dispensing unit, on-line testing unit and Chromatographic Analysis of Transformer oil instrument, it is characterized in that:
The concentrated oil sample that described oil sample dispensing unit adopts the principle preparation of concentration and dilution to contain certain concentration gas, is used for on-line testing unit;
Described on-line testing unit be one with the oil tank of transformer of circulating oil path; In described circulating oil path, string has circulating oil pump and oil circuit attemperating unit; Described transformer oil box top is provided with oil hole and air pressure measured hole; Described on-line testing unit is with a plurality of in order to connect the test interface of on-Line Monitor Device, and test interface is distributed in the pipeline of transformer oil box outer wall and circulating oil path; Described transformer oil lower box part is provided with sample tap, is used for taking out transformer oil sample for off-line test; Described transformer oil lower box part is provided with air-blowing import, is used for continuing to blast drying nitrogen to replace fuel-displaced middle characteristic gas after test, and what formation can be for next time experiment does not contain the pure oil sample of characteristic gas; Described transformer oil lower box part is provided with fuel outlet, for the transformer oil of fuel tank is emitted;
Described Chromatographic Analysis of Transformer oil instrument, is used for the oil sample in circulating oil path to carry out off-line analysis, and its measuring accuracy is demarcated with calibrating gas.
2. oil chromatography on-Line Monitor Device performance detecting system according to claim 1, it is characterized in that, test interface place is provided with temperature measuring equipment, and its measurement range is-30 ℃ ~ 60 ℃, uncertainty of measurement≤0.3 ℃, for detection of the transformer oil temperature at test interface place.
3. oil chromatography on-Line Monitor Device performance detecting system according to claim 1, is characterized in that, the concentrated oil sample volume that oil sample dispensing unit configures is constant and is not more than 1L.
4. oil chromatography on-Line Monitor Device performance detecting system according to claim 1, is characterized in that, oil tank of transformer cumulative volume is constant and is not less than 50L.
5. oil chromatography on-Line Monitor Device performance detecting system according to claim 1, it is characterized in that, oil hole is except for to pipeline injection transformer oil, pressure that can also be when being filled with the drying nitrogen analogue transformer operation of certain pressure in pipeline.
6. oil chromatography on-Line Monitor Device performance detecting system according to claim 1, it is characterized in that, the barometric surveying hole of described transformer oil box top is provided with rain glass, and described barometric measurement range is 30kPa ~ 110kPa, uncertainty of measurement≤0.2kPa.
7. oil chromatography on-Line Monitor Device performance detecting system according to claim 1, is characterized in that, the oil circuit attemperating unit temperature controlling range being connected in series in described circulating oil path comprises and is not limited to-30 ℃ ~ 60 ℃.
8. oil chromatography on-Line Monitor Device performance detecting system according to claim 1, is characterized in that, test interface is no less than 20.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320459018.9U CN203465246U (en) | 2013-07-30 | 2013-07-30 | System for detecting performance of transformer oil chromatograph on-line monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320459018.9U CN203465246U (en) | 2013-07-30 | 2013-07-30 | System for detecting performance of transformer oil chromatograph on-line monitoring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001339A (en) * | 2018-09-26 | 2018-12-14 | 云南电网有限责任公司电力科学研究院 | The segmentation verification of transformer oil on-line chromatograph monitor device and Fault Locating Method |
| CN109324145A (en) * | 2018-11-23 | 2019-02-12 | 国家电网有限公司 | On-line monitoring equipment automatic calibration method and terminal device |
| CN110579654A (en) * | 2018-06-08 | 2019-12-17 | 上海漕泾热电有限责任公司 | Main transformer oil chromatogram on-line monitoring system |
| CN113624852A (en) * | 2021-08-06 | 2021-11-09 | 国网新疆电力有限公司检修公司 | Oil chromatogram online oil discharge and collection device |
-
2013
- 2013-07-30 CN CN201320459018.9U patent/CN203465246U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579654A (en) * | 2018-06-08 | 2019-12-17 | 上海漕泾热电有限责任公司 | Main transformer oil chromatogram on-line monitoring system |
| CN109001339A (en) * | 2018-09-26 | 2018-12-14 | 云南电网有限责任公司电力科学研究院 | The segmentation verification of transformer oil on-line chromatograph monitor device and Fault Locating Method |
| CN109324145A (en) * | 2018-11-23 | 2019-02-12 | 国家电网有限公司 | On-line monitoring equipment automatic calibration method and terminal device |
| CN113624852A (en) * | 2021-08-06 | 2021-11-09 | 国网新疆电力有限公司检修公司 | Oil chromatogram online oil discharge and collection device |
| CN113624852B (en) * | 2021-08-06 | 2024-04-30 | 国网新疆电力有限公司超高压分公司 | Online oil discharge and collection device for oil chromatography |
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