CN111863522A - Electronic gas relay - Google Patents
Electronic gas relay Download PDFInfo
- Publication number
- CN111863522A CN111863522A CN202010620586.7A CN202010620586A CN111863522A CN 111863522 A CN111863522 A CN 111863522A CN 202010620586 A CN202010620586 A CN 202010620586A CN 111863522 A CN111863522 A CN 111863522A
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- CN
- China
- Prior art keywords
- gas
- gas relay
- liquid level
- level sensor
- signal output
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- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000011521 glass Substances 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to an electronic gas relay, which is mainly technically characterized in that: the top of the relay shell is provided with a junction box, two wiring terminals, two signal output terminals and an information processor are arranged in the junction box, and the side end of the top of the gas relay shell is provided with a vent valve; a glass window is arranged in the middle of a front panel of the gas relay shell, and a liquid level sensor, a flow velocity sensor and a liquid level sensor are respectively arranged in the gas relay shell through a fixed support; the liquid level sensor, the flow velocity sensor, the output end of the liquid level sensor and the two signal output terminals are all connected with the information processor. The invention can accurately and effectively detect the action condition of the double-floating-ball type gas relay, is convenient for operation and maintenance personnel to master the equipment condition in time, more accurately sets the action value of heavy gas, avoids the conditions of heavy gas misoperation of the lower floating ball and the like of the double-floating-ball type gas relay, and can effectively reduce the gas misoperation rate.
Description
Technical Field
The invention belongs to the technical field of relays, and particularly relates to an electronic gas relay.
Background
The gas relay (also called as a gas relay) is a basic protection device of a transformer, is used as non-electric quantity protection applied to the main protection of a power transformer, can effectively reflect the internal fault of the transformer, and is very important to the operation of the transformer in terms of the reliability and the accuracy of the action.
The gas relay has two main functions, light gas acts on signals, and heavy gas acts on tripping. At present, the gas relay widely used in the transformer mainly has two types, namely an open cup type and a double floating ball type, wherein the open cup type does not have a bottom oil level tripping signal. The two gas relays can not avoid the condition of heavy gas misoperation in the operation process. According to the structure of the gas relay and the analysis of the actual operation condition, most of the false actions are caused by the action of a baffle which can cause heavy gas tripping or the action of a bottom oil level floating ball which shares one contact with the heavy gas baffle.
In summary, how to quickly and accurately judge the malfunction of the gas relay is a problem which is urgently required to be solved at present.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an electronic gas relay, solves the problem of heavy gas misoperation of a lower floating ball caused by oil flow surge of a double-floating-ball gas relay, and effectively reduces the gas misoperation rate.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
an electronic gas relay comprises a relay shell, wherein a junction box is mounted at the top of the relay shell, two wiring terminals, two signal output terminals and an information processor are arranged in the junction box, and a release valve is arranged at the side end of the top of the gas relay shell; a glass window is arranged in the middle of a front panel of a gas relay shell, a fixed support is arranged in the gas relay shell, scales are marked on the upper portion of the fixed support, and a liquid level sensor, a flow velocity sensor and a liquid level sensor are respectively arranged on the upper portion, the middle portion and the bottom portion of the fixed support; the output ends of the liquid level sensor, the flow velocity sensor and the liquid level sensor are all connected with an information processor, and the information processor is connected with the two signal output terminals.
And, the two signal output terminals are connected with a remote monitoring system.
Moreover, the two wiring terminals are respectively a light gas signal wiring terminal and a trip signal wiring terminal; the two signal output terminals are respectively a light gas signal output terminal and a trip signal output terminal.
And, the light gas signal and the trip signal are both: 4-20 mA/0-5V.
And a window cover is arranged outside the glass window.
Moreover, the gas relay is a double-floating-ball type gas relay.
The invention has the advantages and positive effects that:
according to the invention, the liquid level sensor, the flow velocity sensor and the liquid level sensor are arranged in the gas relay shell, so that the action condition of the gas relay can be accurately and effectively detected, and the detected data can be uploaded to a remote monitoring system in real time, the networking communication function of the detected data is realized, operation and maintenance personnel can conveniently master the equipment condition in time, the action value of heavy gas can be set more accurately, and the accurate analysis and judgment of equipment faults are facilitated; meanwhile, the conditions of heavy gas misoperation of the lower floating ball and the like of the double-floating-ball relay are avoided, and the gas misoperation rate can be effectively reduced.
Drawings
FIG. 1 is a structural view of an electronic gas relay according to the present invention;
FIG. 2 is a signal processing schematic of the present invention;
the device comprises a relay shell 1, a junction box 2, a light gas signal wiring terminal 3, a trip signal wiring terminal 4, a light gas signal output terminal 5, a trip signal output terminal 6, an information processor 7, an air release valve 8, a glass window 9, a window cover 10, a fixed support 11, a liquid level sensor 12, a flow rate sensor 13 and a liquid level sensor 14.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An electronic gas relay, as shown in fig. 1, includes a relay housing 1, and a junction box 2 is mounted on the top of the relay housing 1. The light gas signal connecting terminal 3, the trip signal connecting terminal 4, the corresponding light gas signal output terminal 5, the trip signal output terminal 6 and the information processor 7 are arranged in the junction box 2, and the air release valve 8 is arranged at the top side end of the gas relay shell 1. The light gas signal and the trip signal are (4-20) mA/(0-5) V. A glass window 9 is arranged in the middle of a front panel of a gas relay shell 1, a window cover 10 is arranged outside the glass window 9, a fixed support 11 is arranged inside the gas relay shell 1, scales are marked on the upper portion of the fixed support 11, and a liquid level sensor 12, a flow velocity sensor 13 and a liquid level sensor 14 are respectively arranged on the upper portion, the middle portion and the bottom portion of the fixed support 11.
As shown in FIG. 2, the output ends of the liquid level sensor 12, the flow rate sensor 13 and the liquid level sensor 14 are all connected with the information processor 7, and the information processor 7 is connected with the signal (4-20) mA/(0-5) V signal output terminal 5 and the tripping (4-20) mA/(0-5) V signal output terminal 6. The information processor 7 collects signals collected by the liquid level sensor 12, the flow rate sensor 13 and the liquid level sensor 14, and outputs two signals in real time through the signal (4-20) mA/(0-5) V signal output terminal 5 and the tripping (4-20) mA/(0-5) V signal output terminal 6: the signal value (4-20) mA/(0-5) V and the gas action signal/trip are measured in real time and uploaded to a remote monitoring system in real time, so that the data detection networking communication function is realized, and operation and maintenance personnel can conveniently master the equipment condition in time. In this embodiment, the information processor may be implemented by a single chip.
The working process of the invention is as follows: the scale marked on the upper part of the fixed support 11 is marked by marking the top end of the support as 0ml, and the scale marked by 10ml is taken as the scale in the range of the allowable action volume of the light gas, the liquid level sensor 12 can record the liquid level change condition in real time, can carry out fixed value adjustment along the fixed support 11 in the allowable range, and sends out a light gas action signal through the signal output terminal 3 at the set value. The flow rate sensor 13 arranged in the middle of the fixed bracket 11 can measure the flow rate of the passing liquid in real time and send a tripping signal through the tripping output terminal 4 at a set flow rate value. There is a level sensor 14 at the bottom of the fixed bracket, which sends a trip signal through the trip output terminal 4 when the oil loss is lower than a set level.
It should be emphasized that the embodiments described herein are illustrative rather than restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also includes other embodiments that can be derived from the technical solutions of the present invention by those skilled in the art.
Claims (6)
1. The utility model provides an electronic type gas relay, includes relay housing, its characterized in that: the top of the relay shell is provided with a junction box, two wiring terminals, two signal output terminals and an information processor are arranged in the junction box, and the side end of the top of the gas relay shell is provided with a vent valve; a glass window is arranged in the middle of a front panel of a gas relay shell, a fixed support is arranged in the gas relay shell, scales are marked on the upper portion of the fixed support, and a liquid level sensor, a flow velocity sensor and a liquid level sensor are respectively arranged on the upper portion, the middle portion and the bottom portion of the fixed support; the output ends of the liquid level sensor, the flow velocity sensor and the liquid level sensor are all connected with an information processor, and the information processor is connected with the two signal output terminals.
2. The electronic gas relay according to claim 1, characterized in that: the two signal output terminals are connected with a remote monitoring system.
3. The electronic gas relay according to claim 1 or 2, characterized in that: the two connecting terminals are respectively a light gas signal connecting terminal and a trip signal connecting terminal; the two signal output terminals are respectively a light gas signal output terminal and a trip signal output terminal.
4. The electronic gas relay according to claim 1 or 2, characterized in that: the light gas signal and the trip signal are both: 4-20 mA/0-5V.
5. The electronic gas relay according to claim 1 or 2, characterized in that: a window cover is arranged outside the glass window.
6. The electronic gas relay according to claim 1 or 2, characterized in that: the gas relay is a double-floating-ball type gas relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620586.7A CN111863522A (en) | 2020-07-01 | 2020-07-01 | Electronic gas relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620586.7A CN111863522A (en) | 2020-07-01 | 2020-07-01 | Electronic gas relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111863522A true CN111863522A (en) | 2020-10-30 |
Family
ID=72988352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010620586.7A Pending CN111863522A (en) | 2020-07-01 | 2020-07-01 | Electronic gas relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111863522A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116165535A (en) * | 2023-04-19 | 2023-05-26 | 国网山西省电力公司电力科学研究院 | Heavy gas misoperation prevention gas relay detection device and intelligent sensing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009172A (en) * | 2006-12-12 | 2007-08-01 | 刘书敏 | Multifunctional protection device of the transformer |
| CN104134576A (en) * | 2014-07-16 | 2014-11-05 | 国家电网公司 | Three-pin reed switch type double-circuit trip node gas relay |
| CN107731625A (en) * | 2017-10-17 | 2018-02-23 | 国网山东省电力公司青岛供电公司 | A kind of Buchholz relay |
| CN207149477U (en) * | 2017-09-14 | 2018-03-27 | 云南电网有限责任公司电力科学研究院 | A kind of new gas relay |
| CN207705099U (en) * | 2017-12-26 | 2018-08-07 | 贵州电网有限责任公司 | Transformer Buchholz relay automatic exhaust device |
| CN208315367U (en) * | 2018-06-13 | 2019-01-01 | 沈阳汇众通用机械有限公司 | A kind of Full-enclosed oil-immersed transformer multifunctional protection device |
| CN111180259A (en) * | 2020-01-23 | 2020-05-19 | 广东电网有限责任公司 | Multistage light gas relay |
| CN111261455A (en) * | 2020-01-23 | 2020-06-09 | 广东电网有限责任公司 | Single-buoy type multistage gas relay device |
-
2020
- 2020-07-01 CN CN202010620586.7A patent/CN111863522A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009172A (en) * | 2006-12-12 | 2007-08-01 | 刘书敏 | Multifunctional protection device of the transformer |
| CN104134576A (en) * | 2014-07-16 | 2014-11-05 | 国家电网公司 | Three-pin reed switch type double-circuit trip node gas relay |
| CN207149477U (en) * | 2017-09-14 | 2018-03-27 | 云南电网有限责任公司电力科学研究院 | A kind of new gas relay |
| CN107731625A (en) * | 2017-10-17 | 2018-02-23 | 国网山东省电力公司青岛供电公司 | A kind of Buchholz relay |
| CN207705099U (en) * | 2017-12-26 | 2018-08-07 | 贵州电网有限责任公司 | Transformer Buchholz relay automatic exhaust device |
| CN208315367U (en) * | 2018-06-13 | 2019-01-01 | 沈阳汇众通用机械有限公司 | A kind of Full-enclosed oil-immersed transformer multifunctional protection device |
| CN111180259A (en) * | 2020-01-23 | 2020-05-19 | 广东电网有限责任公司 | Multistage light gas relay |
| CN111261455A (en) * | 2020-01-23 | 2020-06-09 | 广东电网有限责任公司 | Single-buoy type multistage gas relay device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116165535A (en) * | 2023-04-19 | 2023-05-26 | 国网山西省电力公司电力科学研究院 | Heavy gas misoperation prevention gas relay detection device and intelligent sensing method thereof |
| CN116165535B (en) * | 2023-04-19 | 2023-09-08 | 国网山西省电力公司电力科学研究院 | Heavy gas misoperation prevention gas relay detection device and intelligent sensing method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201030 |
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| RJ01 | Rejection of invention patent application after publication |