CN103489706A - Intelligent gas relay - Google Patents
Intelligent gas relay Download PDFInfo
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- CN103489706A CN103489706A CN201310474939.7A CN201310474939A CN103489706A CN 103489706 A CN103489706 A CN 103489706A CN 201310474939 A CN201310474939 A CN 201310474939A CN 103489706 A CN103489706 A CN 103489706A
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Abstract
The invention provides an intelligent gas relay and relates to the gas relay. An existing conventional gas relay has the disadvantages of difficult adjustment, great setting errors, weak whole anti-vibration capability, easy false operation and the like. The intelligent gas relay comprises a detection pipe, a light gas device and a heavy gas device, wherein the light gas device comprises a light gas tank, a hollow floating barrel, a light gas deflating pipe, a light gas deflating valve and a light gas shading sealing cover sleeved with the light gas tank; the light gas tank is provided with a transparent measurement window and an endoscope; a cavity of the light gas tank is separated into an upper cavity and a lower cavity by the hollow floating barrel; the upper cavity is communicated with the light gas deflating pipe; the lower cavity is communicated with a detection pipe; gas in oil is separated out. According to the technical scheme provided by the invention, the intelligent gas relay is stable and reliable to work, is not suffered from strong electromagnetic interferences and strong vibration interferences, has no direct-current grounded false operation problems and is sensitive to react; the development requirements of an intelligent power grid are met.
Description
Technical field
The present invention relates to a kind of Buchholz relay.
Background technology
Existing conventional Buchholz relay is as the main protection of large volume main; its principle is mainly to rely on theory of mechanics; exist setting value adjust difficulty, large, the whole anti-vibration ability of set error weak (in the situation that easily misoperation of big bang is arranged, as earthquake etc.) thereby, the output signal loop exists easily making moist immersion to cause the shortcomings such as protection misoperation.Another actuating of relay process can not continuous monitoring, can't catch the actuating of relay accurately constantly, actual oily Flow Velocity can't continuous monitoring and record in the main transformer failure process; Conventional Buchholz relay can not meet the demand of intelligent power network development.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is that the prior art scheme is improved and improved, and a kind of intelligent Buchholz relay is provided, to reach working stability, reliable purpose.For this reason, the present invention takes following technical scheme.
A kind of intelligent Buchholz relay is characterized in that: comprise detector tube, be located at respectively the light gas device of the upper and lower both sides of detector tube, heavy gas device; Described light gas device comprises the light gas pot that communicates with detector tube by air admission hole, be located at hollow floating drum, the light gas bleeder pipe communicated with the hollow floating drum in light gas pot, be located at light gas vent valve on light gas bleeder pipe, be coated at the light gas shading seal closure of light gas pot, described light gas pot is provided with transparent measurement window and endoscope, and described hollow floating drum is divided into epicoele and cavity of resorption by the cavity of light gas pot; Described epicoele communicates with light gas bleeder pipe, and described cavity of resorption communicates with detector tube, and gas evolution in fluid enters light gas pot, promotes the motion of hollow floating drum, and in tank, gas gas volume numerical value sends signal processing unit to by endoscope; Described heavy gas device comprise heavy gas test the speed chamber, separate heavy gas test the speed chamber and the isolation lid that detects tube chamber, be located at the first rotating shaft in detector tube, be located at the speed measuring turbine in the first rotating shaft, the velocity package be connected with the first rotating shaft, the signal processing unit that is connected with velocity package, when the main transformer fault, oil stream impacts speed measuring turbine, drive the first rotating shaft and rotate, utilize velocity package to count and test the speed and be sent to signal processing unit the first rotating shaft velocity of rotation.Light gas vent valve is used for the discharge of the unnecessary gas in inside.
As the further of technique scheme improved and supplement, the present invention also comprises following additional technical feature.
Described velocity package comprises the first permanent magnet of being located at the first rotating shaft lower end, be positioned at heavy gas test the speed chamber the second permanent magnet, the second rotating shaft that upper end is connected with the second permanent magnet, be located at having in the second rotating shaft the test the speed tachometer disc in hole, the optical sensor relative with tachometer disc; Described the first permanent magnet is relative with the second permanent magnet, covers airtight isolation to prevent that fluid from entering heavy gas and testing the speed in chamber by isolation between the two, described the second rotating shaft, tachometer disc, and optical sensor all be located at heavy gas and test the speed in chamber; The rotation first permanent magnet rotation of the first rotating shaft, make the corresponding rotation of the second permanent magnet and drive the rotation of the second rotating shaft and tachometer disc by magneticaction, and optical sensor is exported tach signal.Optical sensor is according to the rotating speed of the shadowing tachometer disc of light, and then obtains the flow velocity of liquid
The lower end of described the second rotating shaft is provided with the manual operation handle.Whether reliable for manual authentication work.
Described hollow floating drum is aluminium matter sealed hollow floating drum.Aluminium matter sealed hollow floating drum light weight, reliable operation.
Signal processing unit is arranged in the main transformer body case; between endoscope, optical sensor and processing unit, with optical cable, be connected; after signal processing unit processes; be sent to main transformer non electrical quantity protected location with IEC61850 GOOSE signal form, after the non electrical quantity protected location is differentiated, send alarm signal or trip signal.
Described speed measuring turbine is perpendicular axis type liquid speed measuring turbine.
It also comprises record ripple memory cell, for recording oily Flow Velocity size, duration, with analysis of failure, the moment, the order of severity and fault progression process occurs.The protection adjust visual, change convenient.
Described measurement window is marked with graduation mark.
Beneficial effect: the technical program working stability, reliable, heavy gas sampling process is by optical sensor, can not be subject to strong electromagnetic, be not subject to strong motion disturb, without DC earthing misoperation problem, be quick on the draw, meet the intelligent power network development need, setting value is easy to adjust, and set error is little, shock resistance is strong, because output loop separates with fluid, moisture-sensitive not, guarantee the accuracy of work; Set up memory cell, can record continuously ripple, be used for that analysis of failure occurs constantly, the order of severity and fault progression process; The protection adjust visual, change convenient.Sample information is delivered to signal processing unit through optical fiber transmission, realizes automation control, meets the demand of intelligent power network development.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the light gas pot master of the present invention TV structure schematic diagram.
Fig. 3 is the structural representation of tachometer disc of the present invention.
In figure: light gas bleeder pipe 1, light gas vent valve 2, endoscope 3, light gas shading seal closure 4, light gas pot 5, hollow floating drum 6, air admission hole 7, turbine 8, the first permanent magnets 9, tachometer disc 10, the hole 101 of testing the speed, manual operation handle 11, the second permanent magnet light signal input 12, optical sensor 13, detector tube 14, measurement window 15, isolation covers 16.
Embodiment
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
As shown in Figure 1, the present invention includes detector tube 14, be located at respectively the light gas device of detector tube both sides Shang Xia 14, heavy gas device; Described light gas device comprises the light gas pot 5 that communicates with detector tube 14 by air admission hole 7, be located at hollow floating drum 6, the light gas bleeder pipe 1 communicated with hollow floating drum 6 in light gas pot 5, be located at light gas vent valve 2 on light gas bleeder pipe 1, be coated at the light gas shading seal closure 4 of light gas pot 5, described light gas pot 5 is provided with transparent measurement window 15 and endoscope 3, as shown in Figure 2, measurement window 15 is marked with graduation mark; Described hollow floating drum 6 is divided into epicoele and cavity of resorption by the cavity of light gas pot 5; Described epicoele communicates with light gas bleeder pipe 1, and described cavity of resorption communicates with detector tube 14, and gas evolution in fluid enters light gas pot 5, promotes 6 motions of hollow floating drum, and in tank, gas gas volume numerical value sends signal processing unit to by endoscope 3; Described heavy gas device comprise heavy gas test the speed chamber, separate heavy gas test the speed chamber and the isolation lid 16 that detects tube chamber, be located at the first rotating shaft in detector tube 14, be located at the perpendicular axis type liquid speed measuring turbine 8 in the first rotating shaft, the velocity package be connected with the first rotating shaft, the signal processing unit that is connected with velocity package, when the main transformer fault, oil stream impacts speed measuring turbine 8, drive the first rotating shaft and rotate, utilize velocity package to count and test the speed and be sent to signal processing unit the first rotating shaft velocity of rotation.Light gas vent valve 2 is for the discharge by the unnecessary gas in inside.Wherein velocity package comprise the first permanent magnet 9 of being located at the first rotating shaft lower end, be positioned at heavy gas test the speed chamber the second permanent magnet 12, the second rotating shaft that upper end is connected with the second permanent magnet 12, be located at having in the second rotating shaft the test the speed tachometer disc 10 in hole 101, the optical sensor 13 relative with tachometer disc 10, described the first permanent magnet 9 is relative with the second permanent magnet 12, covers 16 airtight isolation to prevent that fluid from entering heavy gas and testing the speed in chamber by isolation between the two, described the second rotating shaft, tachometer disc 10, and optical sensor 13 all be located at heavy gas and test the speed in chamber, have the hole 101 of testing the speed that a plurality of circumferencial directions are evenly arranged on tachometer disc 10, rotation first permanent magnet 9 rotations of the first rotating shaft, make the corresponding rotation of the second permanent magnet 12 and drive the second rotating shaft and the rotation of tachometer disc 10 by magneticaction, optical sensor 13 comprises light signal input unit and the light signal receiving element relative with the light signal input unit, light signal input unit and be divided into the upper of tachometer disc 10 with the light signal receiving element, lower both sides, in tachometer disc 10 rotation processes, the light of light signal input unit emission can be received by the light signal receiving element behind the hole 101 of testing the speed of tachometer disc 10, by the light signal receiving element, tach signal is exported.Optical sensor 13 is according to the rotating speed of the shadowing tachometer disc 10 of light, and then obtains the flow velocity of liquid.
Whether reliable for checking work, the lower end of described the second rotating shaft is provided with manual operation handle 11.
Hollow floating drum 6 can adopt metalwork or nonmetal parts as high score component etc., and in the present embodiment, low for taking into account light weight, reliable operation and cost, hollow floating drum 6 is aluminium matter sealed hollow floating drum 6.
Signal processing unit is arranged in the main transformer body case; between endoscope 3, optical sensor 13 and processing unit, with optical cable, be connected; after signal processing unit processes; be sent to main transformer non electrical quantity protected location with IEC61850 GOOSE signal form, after the non electrical quantity protected location is differentiated, send alarm signal or trip signal.
Described speed measuring turbine 8 is perpendicular axis type liquid speed measuring turbine 8.
For recording oily Flow Velocity size, duration, with analysis of failure, the moment, the order of severity and fault progression process occur, visual, change convenience that protection is adjusted.The technical program also comprises record ripple memory cell.
A kind of intelligent Buchholz relay shown in above Fig. 1-3 is specific embodiments of the invention; substantive distinguishing features of the present invention and progress have been embodied; can be according to actual use needs; under enlightenment of the present invention; it is carried out to the equivalent modifications of the aspects such as shape, structure, all at the row of the protection range of this programme.
Claims (8)
1. an intelligent Buchholz relay, is characterized in that: comprise detector tube (14), be located at respectively the light gas device of the upper and lower both sides of detector tube (14), heavy gas device; Described light gas device comprises the light gas pot (5) that communicates with detector tube (14) by air admission hole (7), be located at hollow floating drum (6), the light gas bleeder pipe (1) communicated with hollow floating drum (6) in light gas pot (5), be located at light gas vent valve (2) on light gas bleeder pipe (1), be coated at the light gas shading seal closure (4) of light gas pot (5), described light gas pot (5) is provided with transparent measurement window (15) and endoscope (3), and described hollow floating drum (6) is divided into epicoele and cavity of resorption by the cavity of light gas pot (5); Described epicoele communicates with light gas bleeder pipe (1), described cavity of resorption communicates with detector tube (14), and gas evolution in fluid enters light gas pot (5), promote hollow floating drum (6) motion, in tank, gas gas volume numerical value sends signal processing unit to by endoscope (3); Described heavy gas device comprise heavy gas test the speed chamber, separate heavy gas test the speed chamber with the isolation lid (16) that detects tube chamber, be located at the first interior rotating shaft of detector tube (14), be located at the speed measuring turbine (8) in the first rotating shaft, the velocity package be connected with the first rotating shaft, the signal processing unit that is connected with velocity package, when the main transformer fault, oil stream impacts speed measuring turbine (8), drive the first rotating shaft and rotate, utilize velocity package to count and test the speed and be sent to signal processing unit the first rotating shaft velocity of rotation.
2. a kind of intelligent Buchholz relay according to claim 1 is characterized in that: described velocity package comprises the first permanent magnet (9) of being located at the first rotating shaft lower end, be positioned at heavy gas test the speed chamber the second permanent magnet (12), the second rotating shaft that upper end is connected with the second permanent magnet (12), be located at having in the second rotating shaft the test the speed tachometer disc (10) of hole (101), the optical sensor (13) relative with tachometer disc (10); Described the first permanent magnet (9) is relative with the second permanent magnet (12), cover (16) airtight isolation to prevent that fluid from entering heavy gas and testing the speed in chamber by isolation between the two, described the second rotating shaft, tachometer disc (10), and optical sensor (13) all be located at heavy gas and test the speed in chamber; Rotation the first permanent magnet (9) rotation of the first rotating shaft, make the corresponding rotation of the second permanent magnet (12) and drive the second rotating shaft and the rotation of tachometer disc (10) by magneticaction, and optical sensor (13) is exported tach signal.
3. a kind of intelligent Buchholz relay according to claim 2, it is characterized in that: the lower end of described the second rotating shaft is provided with manual operation handle (11).
4. a kind of intelligent Buchholz relay according to claim 3, it is characterized in that: described hollow floating drum (6) is aluminium matter sealed hollow floating drum (6).
5. a kind of intelligent Buchholz relay according to claim 4; it is characterized in that: signal processing unit is arranged in the main transformer body case; between endoscope (3), optical sensor (13) and processing unit, with optical cable, be connected; after signal processing unit processes; be sent to main transformer non electrical quantity protected location with IEC61850 GOOSE signal form, after the non electrical quantity protected location is differentiated, send alarm signal or trip signal.
6. a kind of intelligent Buchholz relay according to claim 6, it is characterized in that: described speed measuring turbine (8) is perpendicular axis type liquid speed measuring turbine (8).
7. a kind of intelligent Buchholz relay according to claim 7 is characterized in that: it also comprises record ripple memory cell, for recording oily Flow Velocity size, duration, with analysis of failure occur constantly, the order of severity and fault progression process.
8. a kind of intelligent Buchholz relay according to claim 7, it is characterized in that: described measurement window (15) is marked with graduation mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474939.7A CN103489706A (en) | 2013-10-12 | 2013-10-12 | Intelligent gas relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474939.7A CN103489706A (en) | 2013-10-12 | 2013-10-12 | Intelligent gas relay |
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| Publication Number | Publication Date |
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| CN103489706A true CN103489706A (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310474939.7A Pending CN103489706A (en) | 2013-10-12 | 2013-10-12 | Intelligent gas relay |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206156A (en) * | 2015-05-26 | 2016-12-07 | Abb技术有限公司 | Adjustable fluid outlet system for Buchholz relay |
| CN111664919A (en) * | 2020-07-03 | 2020-09-15 | 国网四川省电力公司绵阳供电公司 | Light-sensitive light gas relay |
| CN111863525A (en) * | 2020-07-22 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Gas relay for transformer |
| CN113257612A (en) * | 2021-05-25 | 2021-08-13 | 国网河北省电力有限公司检修分公司 | Gas relay |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186396Y (en) * | 1993-12-30 | 1994-12-28 | 北京市公用事业科学研究所 | Remote-transmiting and direct-reading gas turbo-flowmeter |
| WO2006128265A1 (en) * | 2005-06-01 | 2006-12-07 | Junko Hiraoka | Electronic gas relay |
| CN102856116A (en) * | 2012-09-12 | 2013-01-02 | 辽宁省电力有限公司电力科学研究院 | Double floater and double contact gas relay |
| CN203103221U (en) * | 2012-12-28 | 2013-07-31 | 浙江省电力设计院 | Gas relay for optical fiber trip of intelligent substation |
| CN203588929U (en) * | 2013-10-12 | 2014-05-07 | 国家电网公司 | Intelligent gas relay |
-
2013
- 2013-10-12 CN CN201310474939.7A patent/CN103489706A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186396Y (en) * | 1993-12-30 | 1994-12-28 | 北京市公用事业科学研究所 | Remote-transmiting and direct-reading gas turbo-flowmeter |
| WO2006128265A1 (en) * | 2005-06-01 | 2006-12-07 | Junko Hiraoka | Electronic gas relay |
| CN102856116A (en) * | 2012-09-12 | 2013-01-02 | 辽宁省电力有限公司电力科学研究院 | Double floater and double contact gas relay |
| CN203103221U (en) * | 2012-12-28 | 2013-07-31 | 浙江省电力设计院 | Gas relay for optical fiber trip of intelligent substation |
| CN203588929U (en) * | 2013-10-12 | 2014-05-07 | 国家电网公司 | Intelligent gas relay |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106206156A (en) * | 2015-05-26 | 2016-12-07 | Abb技术有限公司 | Adjustable fluid outlet system for Buchholz relay |
| CN106206156B (en) * | 2015-05-26 | 2019-07-23 | Abb瑞士股份有限公司 | Adjustable fluid outlet system for Buchholz relay |
| CN111664919A (en) * | 2020-07-03 | 2020-09-15 | 国网四川省电力公司绵阳供电公司 | Light-sensitive light gas relay |
| CN111863525A (en) * | 2020-07-22 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Gas relay for transformer |
| CN113257612A (en) * | 2021-05-25 | 2021-08-13 | 国网河北省电力有限公司检修分公司 | Gas relay |
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Application publication date: 20140101 |