CN112461613A - Automatic gas collection detection box for transformer gas and use method thereof - Google Patents
Automatic gas collection detection box for transformer gas and use method thereof Download PDFInfo
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- CN112461613A CN112461613A CN202011258291.6A CN202011258291A CN112461613A CN 112461613 A CN112461613 A CN 112461613A CN 202011258291 A CN202011258291 A CN 202011258291A CN 112461613 A CN112461613 A CN 112461613A
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- 238000001514 detection method Methods 0.000 title claims abstract description 66
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- 238000005259 measurement Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 142
- 238000004587 chromatography analysis Methods 0.000 description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention discloses an automatic gas collection detection box for transformer gas and a use method thereof, wherein the automatic gas collection detection box for the transformer comprises a gas collection box, a detection chamber and an electric cabinet; the left side of the electric cabinet is connected with the right side of the gas collecting box, and the top of the electric cabinet is connected with the bottom of the detection chamber; the invention uses the cavity to place transformer oil and collect light gas, uses the vacuum pump to pump away the air in the cavity and the gas storage tank, uses the high-precision sensor to detect the light gas flowing into the negative pressure gas storage tank, transmits the detection result to the control screen for display, simultaneously connects the gas storage tank with the vacuum pump through the communicating pipe C provided with the electromagnetic valve C, replaces the light gas in the gas storage tank to carry out the second group detection, and the integrated processor combines the average value of the two groups of data to judge whether the transformer has a fault, adopts automatic control detection in the whole process, replaces the traditional manual detection, and improves the safety factor of workers.
Description
Technical Field
The invention belongs to the technical field of transformer detection, and particularly relates to an automatic gas collection detection box for transformer gas and a using method thereof.
Background
The transformer body gas relay is provided with a gas collecting box for collecting light gas, people need to discharge oil on the gas collecting box beside the transformer to guide the gas down, the amount and the color of the gas are visually observed, then gas is taken, whether the transformer has faults or not is preliminarily judged by igniting the gas, the detection mode is not accurate, potential safety hazards exist, if the transformer is not judged to have faults by igniting the gas, the gas sample is required to be further subjected to chromatographic analysis, the whole process adopts manual sampling detection, the operation is complex, various tools are inconvenient to carry, moreover, if the transformer has a fault, personnel take gas beside the transformer, once explosion happens, personal safety is directly endangered, therefore, the south network company issues a 'notice about temporary management and control measure requirements on the light gas alarm risk of the transformer for printing' in 2019, 12 months and 12 days, and needs to stop power and take gas for the 500kV transformer and the high-voltage transformer. Although no hard requirements are made for 110kV and 220kV transformers, there is also such a risk.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the automatic detection gas collecting box for replacing manual detection of light gas in the transformer, the average value of two groups of data is taken for intelligent judgment and visual display, a worker can directly know whether the transformer fails, the personal risk of taking gas beside the transformer is reduced, and the automatic detection gas collecting box is simple to operate and convenient to carry.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an automatic gas collection detection box for transformer gas comprises a gas collection box, a detection chamber and an electric cabinet; the left side of the electric cabinet is connected with the right side of the gas collecting box, and the top of the electric cabinet is connected with the bottom of the detection chamber;
the gas collecting box is hollow, a cavity for collecting the transformer oil and the light gas is arranged at the hollow part, an air pressure sensor is arranged at one side of the cavity, an opening is formed in the top of the cavity, and a gas collecting box cover is arranged at the opening; the top of the gas collecting box cover is provided with an oil-gas conveying pipe communicated with the cavity; the oil and gas conveying pipe is provided with an electromagnetic valve A; the top of the gas collection box cover is provided with a manual gas taking valve communicated with the cavity;
the detection chamber comprises a base, a cover body and a shield; the shield, the cover body and the base are hollow and are sequentially connected in a sealing manner from top to bottom; a data processor is arranged in the shield; a high-precision sensor is arranged in the cover body; an air storage tank is arranged in the base; the detection probe of the high-precision sensor extends into the gas storage tank; the gas storage tank is communicated with the cavity through a communicating pipe A;
the electric cabinet is hollow, an integrated processor, a power supply and a vacuum pump are sequentially arranged in the hollow part from top to bottom, and a control screen is arranged on the surface of the electric cabinet; the vacuum pump is connected with a tee joint A arranged on the oil and gas conveying pipe through a communicating pipe B, the tee joint A is arranged at the lower end of the electromagnetic valve A, the communicating pipe B close to one end of the vacuum pump is provided with the electromagnetic valve B, the tee joint B is arranged between the electromagnetic valve B and the vacuum pump, and the tee joint B is connected with the gas storage tank through a communicating pipe C; the communicating pipe C is provided with an electromagnetic valve C;
the power supply is respectively and electrically connected with the electromagnetic valve A, the control screen, the data processor, the high-precision sensor, the integrated processor, the vacuum pump, the electromagnetic valve B, the electromagnetic valve C and the air pressure sensor; the data processor is electrically connected with the high-precision sensor and the air pressure sensor respectively; the integrated processor is respectively and electrically connected with the control screen, the data processor, the electromagnetic valve A, the vacuum pump, the electromagnetic valve B and the electromagnetic valve C.
A small amount of transformer oil and overflowed light gas in the transformer enter the gas collecting box and the detection chamber through the oil-gas conveying pipe, the transformer gives out light alarm, the transformer oil automatically discharged into the gas collecting box leads the light gas, and the high-precision sensor automatically measures H2、CO、CO2、CH4、C2H6、C2H4、C2H2、O2、N2When the content of the 9 gases is equal, the data is uploaded to a data processor, and is analyzed and then transmitted to a control screen for display for the reference of workers; the manual gas taking valve is used for collecting a gas sample, and the manual gas taking valve is directly opened to take gas when chromatographic analysis is required.
As a further technical improvement, the bottom of the gas collecting box is provided with an oil discharge valve communicated with the bottom of the cavity; and the top of the gas collection box cover is provided with a pressure reducing valve communicated with the cavity. After the transformer oil in the cavity is accumulated, the pressure reducing valve and the oil discharge valve are opened in sequence, and the transformer oil can be discharged more smoothly.
As a further technical improvement, one end of the communicating pipe A close to the gas collecting box is provided with a filter screen. Because the transformer oil and the light gas that the cavity of negative pressure state got into can be pressed and form oil-gas mixture, increase the filter screen in communicating pipe A department in order to filter out transformer oil, prevent that transformer oil from getting into the gas receiver and contacting the precision that the measuring probe of high accuracy sensor influences the measuring.
As a further technical improvement, the gas collecting box is provided with an observation window for observing the amount of the variable pressure oil in the cavity.
As a further technical improvement, the outer sides of the electric cabinet and the gas collecting box are provided with a portable groove.
As a further technical improvement, a handle is arranged in the middle of the top of the electric cabinet.
A use method of the automatic gas collection detection box for transformer gas comprises the following steps:
s1, before use, closing each electromagnetic valve, and butting the oil-gas delivery pipe with a connector of the transformer;
s2, controlling the control panel to start gas detection, opening the electromagnetic valve B and the electromagnetic valve C, and starting the vacuum pump to vacuumize the cavity, the gas storage tank and the corresponding pipeline in the gas collection box; the air pressure sensor transmits pressure data to the data processor in real time, and then the transmission integrated processor analyzes and judges whether the cavity reaches a vacuum state or not, and displays the air pressure data on the control screen in real time; after the vacuum state is reached, the electromagnetic valve B and the electromagnetic valve C are closed, the vacuum pump is closed, and the action is stopped, so that the cavity of the gas collecting box and the gas storage tank in the detection chamber form a vacuum state without gas;
s3, the integrated processor controls to open the electromagnetic valve A, so that a small amount of transformer oil and overflowed light gas in the transformer enter the gas collecting box through the oil-gas conveying pipe; after the air pressure sensor detects that the air pressure in the cavity of the air collecting box is normal, the high-precision sensor starts to detect light gas flowing into the air storage tank, the data processor converts a detection result, the processor analyzes the result and finally displays a first measurement result through the control screen;
s4, the integrated processor controls the vacuum pump to start, the electromagnetic valve is opened for C2 seconds and then closed, light gas in the gas storage tank is replaced, the high-precision sensor detects the gas again, the data processor converts the detection result, the integrated processor analyzes the result, the secondary detection result is displayed through the control screen, and the integrated processor judges whether the transformer fails or not by combining the average value of the two measurement results;
s5, if the transformer needs to be further confirmed to have faults, after the air pressure value of the cavity in the gas collection box is normal, a worker takes gas through the manual gas taking valve and tests to obtain a corresponding result;
and S6, draining oil from the cavity regularly through an oil drain valve.
Compared with the prior art, the invention has the advantages and beneficial effects as follows:
1. the invention uses the cavity to place transformer oil and collect light gas, uses the vacuum pump to pump away the air in the cavity and the gas storage tank, uses the high-precision sensor to detect the light gas flowing into the negative pressure gas storage tank, transmits the detection result to the control screen for display, simultaneously connects the gas storage tank with the vacuum pump through the communicating pipe C provided with the electromagnetic valve C, replaces the light gas in the gas storage tank to carry out the second group detection, and the integrated processor combines the average value of the two groups of data to judge whether the transformer has a fault, adopts automatic control detection in the whole process, replaces the traditional manual detection, and improves the safety factor of workers.
2. The invention controls the proper state of detection by arranging the air pressure sensor for detecting the air pressure of the cavity, thereby improving the detection precision.
3. According to the invention, the vacuum pump is additionally arranged to extract air in the gas collection box and the detection chamber in advance, so that the gas collection box, the detection chamber and corresponding pipelines can form a negative pressure state, light gas can enter more fully, air in the gas collection box and the detection chamber can be removed, and the detection precision is improved.
4. According to the invention, the electric cabinet is additionally provided with the hand-held groove or the handle, so that the whole device is more convenient to carry.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the internal structure of the present invention.
Fig. 3 is a schematic view of the handle position structure of the present invention.
The attached drawings are as follows:
1-an oil and gas conveying pipe, 2-an electromagnetic valve A, 3-a tee joint A, 4-a gas collection box cover, 5-a gas collection box, 51-an observation window, 52-an air pressure sensor, 6-a manual gas taking valve, 7-a communicating pipe A, 71-a filter screen, 8-a shield, 9-a cover body, 10-a base, 101-a gas storage tank, 11-an electric cabinet, 111-a portable tank, 112-a handle, 12-a control screen, 13-an oil discharge valve, 14-a data processor, 15-a high-precision sensor, 16-an integrated processor, 17-a power supply, 18-a vacuum pump, 19-an electromagnetic valve B and 20-an electromagnetic valve C.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1:
an automatic gas collection detection box for transformer gas comprises a gas collection box 5, a detection chamber and an electric cabinet 11; the left side of the electric cabinet 11 is connected with the right side of the gas collecting box 5, and the top of the electric cabinet 11 is connected with the bottom of the detection chamber;
the gas collecting box 5 is hollow, a cavity for collecting the transformer oil and the light gas is arranged in the hollow part, one side of the cavity is provided with a gas pressure sensor 52, the top of the cavity is provided with an opening, and the opening is provided with a gas collecting box cover 4; the top of the gas collection box cover 4 is provided with an oil-gas conveying pipe 1 communicated with the cavity; the oil and gas delivery pipe 1 is provided with an electromagnetic valve A2; the top of the gas collection box cover 4 is provided with a manual gas taking valve 6 communicated with the cavity;
the detection chamber comprises a base 10, a cover 9 and a shield 8; the shield 8, the cover 9 and the base 10 are hollow and are sequentially connected in a sealing manner from top to bottom; a data processor 14 is arranged in the shield 8; a high-precision sensor 15 is arranged in the cover body 9; an air storage tank 101 is arranged in the base 10; the detection probe of the high-precision sensor 15 extends into the gas storage tank 101; the gas storage tank 101 is communicated with the cavity through a communicating pipe A7;
the electric cabinet 11 is hollow, an integrated processor 16, a power supply 17 and a vacuum pump 18 are sequentially arranged in the hollow part from top to bottom, and a control screen 12 is arranged on the surface of the electric cabinet 11; the vacuum pump 18 is connected with a tee joint A3 arranged on the oil-gas conveying pipe 1 through a communicating pipe B, the tee joint A3 is arranged at the lower end of an electromagnetic valve A2, the communicating pipe B close to one end of the vacuum pump 18 is provided with an electromagnetic valve B19, a tee joint B is arranged between the electromagnetic valve B19 and the vacuum pump 18, and the tee joint B is connected with the gas storage tank 101 through a communicating pipe C; the communicating pipe C is provided with an electromagnetic valve C20;
the power supply 17 is respectively electrically connected with the electromagnetic valve A2, the control screen 12, the data processor 14, the high-precision sensor 15, the integrated processor 16, the vacuum pump 18, the electromagnetic valve B19, the electromagnetic valve C20 and the air pressure sensor 52; the data processor 14 is electrically connected with the high-precision sensor 15 and the air pressure sensor 52 respectively; the integrated processor 16 is electrically connected to the control panel 12, the data processor 14, the solenoid valve a2, the vacuum pump 18, the solenoid valve B19, and the solenoid valve C20, respectively. A small amount of transformer oil and overflowed light gas in the transformer enter the gas collecting box 5 and the detection chamber through the oil-gas conveying pipe 1, the transformer gives out light alarm, the transformer oil automatically discharged into the gas collecting box 5 leads the light gas, and the high-precision sensor 15 automatically measures H2、CO、CO2、CH4、C2H6、C2H4、C2H2、O2、N2When the contents of the 9 gases are equal, the data are uploaded to a data processor 14, and the analyzed result is transmitted to a control screen 12 to be displayed for the reference of workers. The manual gas taking valve 6 is used for collecting gas samples, and the manual gas taking valve 6 is directly opened to take gas when chromatographic analysis is needed.
The application method of the embodiment comprises the following steps:
s1, before use, closing each electromagnetic valve, and butting the oil-gas delivery pipe 1 with a connector of a transformer;
s2, controlling the control panel to start gas detection, opening the electromagnetic valve B19 and the electromagnetic valve C20, and starting the vacuum pump 18 to vacuumize the cavity in the gas collection box 5, the gas storage tank 101 and corresponding pipelines; the air pressure sensor 52 transmits pressure data to the data processor 14 in real time, and then the transmission integrated processor 16 analyzes and judges whether the cavity reaches a vacuum state or not, and displays the air pressure data on the control screen in real time; after reaching the vacuum state, the electromagnetic valve B19 and the electromagnetic valve C20 are closed, the vacuum pump 18 is closed, and the operation is stopped, so that the cavity of the gas collecting box 5 and the gas storage tank 101 in the detection chamber form a vacuum state without gas;
s3, the integrated processor 16 controls to open the electromagnetic valve A2, so that a small amount of transformer oil and overflowed light gas in the transformer enter the gas collecting box 5 through the oil-gas conveying pipe 1; after the air pressure sensor 52 detects that the air pressure in the cavity of the air collecting box 5 is normal, the high-precision sensor 15 starts to detect the light gas flowing into the air storage tank 101, the data processor 14 converts the detection result, the integrated processor 16 analyzes the result, and finally the first measurement result is displayed through the control screen 12;
s4, the integrated processor 16 controls the vacuum pump 18 to start, the electromagnetic valve C is opened for 202 seconds and then closed, light gas in the gas storage tank 101 is replaced, the high-precision sensor 15 detects again, the data processor 14 converts the detection result, the integrated processor 16 analyzes the result, the control screen 12 displays the detection result of the second time, and the integrated processor 16 judges whether the transformer fails or not by combining the average value of the two measurement results;
s5, if the transformer needs to be further confirmed to have faults, after the air pressure value of the cavity in the gas collection box 5 is normal, a worker takes gas through the manual gas taking valve 6 and tests to obtain a corresponding result;
s6, the chamber is drained through the drain valve 13 periodically.
Example 2:
the difference from the embodiment 1 is that the bottom of the gas collecting box 5 is provided with an oil discharge valve 13 communicated with the bottom of the cavity; and the top of the gas collection box cover is provided with a pressure reducing valve communicated with the cavity. After the transformer oil in the cavity is accumulated, the pressure reducing valve and the oil discharge valve 13 are opened in sequence, and the transformer oil can be discharged more smoothly.
The working principle of this embodiment is the same as that of embodiment 1.
Example 3:
the difference from the embodiment 1 is that a filter screen 71 is arranged at one end of the communicating pipe a7 close to the gas collecting box 5. Because the transformer oil and the light gas entering the cavity in the negative pressure state are pressed to form the oil-gas mixed gas, the filter screen 71 is added at the communicating pipe A7 to filter the transformer oil, so that the transformer oil is prevented from entering the gas storage tank 101 and contacting the detection probe of the high-precision sensor 15 to influence the detection precision.
The working principle of this embodiment is the same as that of embodiment 1.
Example 4:
the difference from the embodiment 1 is that the gas collecting box 5 is provided with an observation window 51 for observing the amount of the variable pressure oil in the cavity.
And the outer sides of the electric cabinet 11 and the gas collecting box 5 are provided with a portable groove 111.
A handle 112 is arranged in the middle of the top of the electric cabinet 11.
The working principle of this embodiment is the same as that of embodiment 1.
Claims (7)
1. The utility model provides an automatic gas collection of transformer gas detects box which characterized in that: comprises a gas collection box (5), a detection chamber and an electric cabinet (11); the left side of the electric cabinet (11) is connected with the right side of the gas collecting box (5), and the top of the electric cabinet (11) is connected with the bottom of the detection chamber;
the gas collecting box (5) is hollow, a cavity for collecting transformer oil and light gas is arranged in the hollow part, an air pressure sensor (52) is installed on one side of the cavity, an opening is formed in the top of the cavity, and a gas collecting box cover (4) is installed at the opening; the top of the gas collection box cover (4) is provided with an oil-gas conveying pipe (1) communicated with the cavity; the oil-gas delivery pipe (1) is provided with an electromagnetic valve A (2); the top of the gas collection box cover (4) is provided with a manual gas taking valve (6) communicated with the cavity;
the detection chamber comprises a base (10), a cover body (9) and a shield (8); the shield (8), the cover body (9) and the base (10) are hollow and are sequentially connected in a sealing manner from top to bottom; a data processor (14) is arranged in the shield (8); a high-precision sensor (15) is arranged in the cover body (9); an air storage tank (101) is arranged in the base (10); the detection probe of the high-precision sensor (15) extends into the air storage tank (101); the gas storage tank (101) is communicated with the cavity through a communicating pipe A (7);
the electric cabinet (11) is hollow, an integrated processor (16), a power supply (17) and a vacuum pump (18) are sequentially arranged in the hollow part from top to bottom, and a control screen (12) is arranged on the surface of the electric cabinet (11); the vacuum pump (18) is connected with a tee joint A (3) arranged on the oil-gas conveying pipe (1) through a communicating pipe B, the tee joint A (3) is arranged at the lower end of the electromagnetic valve A (2), the communicating pipe B close to one end of the vacuum pump (18) is provided with an electromagnetic valve B (19), the tee joint B is arranged between the electromagnetic valve B (19) and the vacuum pump (18), and the tee joint B is connected with the gas storage tank (101) through a communicating pipe C; the communicating pipe C is provided with an electromagnetic valve C (20);
the power supply (17) is respectively and electrically connected with the electromagnetic valve A (2), the control screen (12), the data processor (14), the high-precision sensor (15), the integrated processor (16), the vacuum pump (18), the electromagnetic valve B (19), the electromagnetic valve C (20) and the air pressure sensor (52); the data processor (14) is respectively electrically connected with the high-precision sensor (15) and the air pressure sensor (52); the integrated processor (16) is respectively electrically connected with the control screen (12), the data processor (14), the electromagnetic valve A (2), the vacuum pump (18), the electromagnetic valve B (19) and the electromagnetic valve C (20).
2. The automatic gas collection and detection box for transformer gas as claimed in claim 1, wherein: an oil discharge valve (13) communicated with the bottom of the cavity is arranged at the bottom of the gas collection box (5); and the top of the gas collection box cover is provided with a pressure reducing valve communicated with the cavity.
3. The automatic gas collection and detection box for transformer gas as claimed in claim 1, wherein: one end of the communicating pipe A (7) close to the gas collecting box (5) is provided with a filter screen (71).
4. The automatic gas collection and detection box for transformer gas as claimed in claim 1, wherein: the gas collecting box (5) is provided with an observation window (51) for observing the amount of the variable-pressure oil in the cavity.
5. The automatic gas collection and detection box for transformer gas as claimed in claim 1, wherein: and a portable groove (111) is arranged on the outer sides of the electric cabinet (11) and the gas collecting box (5).
6. The automatic gas collection and detection box for transformer gas as claimed in claim 1, wherein: a handle (112) is arranged in the middle of the top of the electric cabinet (11).
7. The use method of the transformer gas automatic gas collection detection box according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
s1, before use, closing each electromagnetic valve, and butting the oil-gas delivery pipe (1) with a connection port of a transformer;
s2, controlling a control screen (12) to start gas detection, opening an electromagnetic valve B (19) and an electromagnetic valve C (20), and starting a vacuum pump (18) to vacuumize a cavity, a gas storage tank (101) and corresponding pipelines in a gas collection box (5); the air pressure sensor (52) transmits pressure data to the data processor (14) in real time, and then the transmission integrated processor (16) analyzes and judges whether the cavity reaches a vacuum state or not and displays the air pressure data on the control screen in real time; after reaching the vacuum state, closing the electromagnetic valve B (19) and the electromagnetic valve C (20), closing the vacuum pump (18), and stopping the action to enable the cavity of the gas collecting box (5) and the gas storage tank (101) in the detection chamber to form a vacuum state without gas;
s3, the integrated processor (16) controls to open the electromagnetic valve A (2) to enable a small amount of transformer oil and overflowed light gas in the transformer to enter the gas collecting box (5) through the oil-gas conveying pipe (1); after the air pressure sensor (52) detects that the air pressure in the cavity of the air collecting box (5) is normal, the high-precision sensor (15) starts to detect the light gas flowing into the air storage tank (101), the data processor (14) converts the detection result, the integrated processor (16) analyzes the result, and finally the control screen (12) displays the first measurement result;
s4, the integrated processor (16) controls the vacuum pump (18) to start, the electromagnetic valve C (20) is opened for 2 seconds and then closed, light gas in the gas storage tank (101) is replaced, the high-precision sensor (15) detects again, the data processor (14) converts the detection result, the integrated processor (16) analyzes the result, the control screen (12) displays the detection result of the second time, and the integrated processor (16) judges whether the transformer fails or not by combining the average value of the two measurement results;
s5, if the transformer needs to be further confirmed to have faults, after the air pressure value of the cavity in the gas collection box (5) is normal, a worker takes gas through the manual gas taking valve (6) and tests to obtain a corresponding result;
s6, the cavity needs to be drained periodically through an oil drain valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011258291.6A CN112461613A (en) | 2020-11-12 | 2020-11-12 | Automatic gas collection detection box for transformer gas and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011258291.6A CN112461613A (en) | 2020-11-12 | 2020-11-12 | Automatic gas collection detection box for transformer gas and use method thereof |
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| CN112461613A true CN112461613A (en) | 2021-03-09 |
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| CN114216750A (en) * | 2021-11-19 | 2022-03-22 | 广西电网有限责任公司柳州供电局 | Intelligent gas collection box of transformer |
| CN114660262A (en) * | 2022-05-23 | 2022-06-24 | 南方电网科学研究院有限责任公司 | Transformer combustible gas monitoring system |
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| CN210375882U (en) * | 2019-08-02 | 2020-04-21 | 云南电网有限责任公司玉溪供电局 | Dedicated gas device of getting of transformer gas |
| CN111103407A (en) * | 2020-01-20 | 2020-05-05 | 北京壬工智能科技有限公司 | Device, system and method for automatically taking gas from transformer light gas and monitoring transformer light gas in real time |
| CN111795868A (en) * | 2020-07-08 | 2020-10-20 | 广东电网有限责任公司 | Gas collecting device and using method thereof |
| CN111816432A (en) * | 2020-07-10 | 2020-10-23 | 国网山东省电力公司电力科学研究院 | Gas relay for realizing intelligent tripping of transformer and gas protection method |
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| CN114216750A (en) * | 2021-11-19 | 2022-03-22 | 广西电网有限责任公司柳州供电局 | Intelligent gas collection box of transformer |
| CN114660262A (en) * | 2022-05-23 | 2022-06-24 | 南方电网科学研究院有限责任公司 | Transformer combustible gas monitoring system |
| CN114660262B (en) * | 2022-05-23 | 2022-08-02 | 南方电网科学研究院有限责任公司 | Transformer combustible gas monitoring system |
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