CN106371015B - Gas relay action rapid identification method and device - Google Patents
Gas relay action rapid identification method and device Download PDFInfo
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- CN106371015B CN106371015B CN201611134752.2A CN201611134752A CN106371015B CN 106371015 B CN106371015 B CN 106371015B CN 201611134752 A CN201611134752 A CN 201611134752A CN 106371015 B CN106371015 B CN 106371015B
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- connecting rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- General Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a gas relay action rapid identification method and device, and belongs to the technical field of relays. The invention is that a rapid action recognition device is arranged below the front of a baffle of a gas relay, and an indication connecting rod is arranged on the rapid action recognition device and can shift along with the action of the gas relay; checking whether the indicating connecting rod on the action rapid identification device is shifted or not according to the occurrence condition of the gas relay signal, and judging the cause of the fault according to the position; after the inspection is finished and the fault is eliminated, the indicating connecting rod of the action rapid identification device is reset. The invention provides a quick recognition method and a quick recognition device for the action of a gas relay, wherein the action condition of the gas relay is judged through the deflection of the quick recognition device; the device simple structure, the simple operation, the cost of manufacture is low, and the instruction is clear and definite for the analysis, the inspection and the elimination work of accident, practices thrift the manpower, shortens the outage time, improves work efficiency.
Description
Technical Field
The invention relates to the technical field of relays.
Background
At present, oil-immersed transformers are widely used in power systems in China, and gas protection is one of effective technical measures for ensuring safe and stable operation of the oil-immersed transformers. The gas relay used at present can automatically reset and restore the original state after the fault disappears, the action condition of the gas relay cannot be maintained, so that the real action condition of the gas relay cannot be confirmed, whether the gas relay is an internal fault of a transformer or the fault of a secondary circuit and a protection device cannot be rapidly distinguished, and therefore, the reason and the property of heavy gas protection action cannot be rapidly judged; meanwhile, key work groups cannot be determined, work confusion is easy to cause, and the problem of manpower processing cannot be concentrated; meanwhile, the responsibility range cannot be confirmed in time, so that the phenomenon of withholding each other possibly occurs, the work cannot be smoothly carried out, a large amount of manpower, material resources and time are wasted, and the transformer cannot be put into operation as soon as possible.
Such things occur for many times, for example: in 2014, a main transformer body heavy gas outlet action signal of a certain transformer substation No. 1 trips a main transformer three-side switch. Through inspection, the insulation, protection and direct current secondary circuit and the gas relay are all normal. In 2015, a main transformer body heavy gas outlet action signal of a transformer substation No. 1 trips a main transformer three-side switch. Through inspection, the insulation, protection and direct current secondary circuit and the gas relay are all normal. At present, no reason is found yet. And the gas action of the No. 2 main transformer of a 220kV transformer substation in 2016 causes the main transformer to stop operating. The inspection shows that the gas relay is in misoperation due to the sudden start of the oil pump. Because of the numerous and complex conditions of gas action, the defects are difficult to find and eliminate in a short time, and finally the main transformer is forced to be stopped for a long time. Therefore, there is a need to propose a method and apparatus for fast identifying the action of a gas relay.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a rapid identification method and device for the action of a gas relay, which are provided with an identification device which acts along with the action of the gas relay, and the action condition of the gas relay is judged through the deflection of the device; the device simple structure, the simple operation, the cost of manufacture is low, and the instruction is clear and definite, can compensate the defect that the gas relay is automatic to reset after the trouble disappears for analysis, inspection and the elimination work of accident practices thrift the manpower, shortens the outage time, improves work efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme: a gas relay action rapid identification method comprises the following steps:
1) A rapid action recognition device is arranged below the front of the baffle of the gas relay, and an indication connecting rod is arranged on the rapid action recognition device and can displace along with the action of the gas relay;
2) Checking whether the indicating connecting rod on the action rapid identification device is shifted or not according to the occurrence condition of the gas relay signal, and judging the cause of the fault according to the position;
3) After the inspection is finished and the fault is eliminated, the indicating connecting rod of the action rapid identification device is reset.
Preferably, in the step 2), if the indication link is displaced, the conditions of the inside of the main transformer and the gas relay are checked with emphasis.
Preferably, in the step 2), if the indication link is not displaced, the protection device and the secondary circuit are inspected with emphasis.
A gas relay action rapid identification device comprises a reset button, a mechanism bracket, an indication connecting rod, a protective cover and a baffle plate; the reset button is arranged at the upper part of the mechanism bracket, the lower end of the reset button is connected with a reset connecting rod, and the reset connecting rod passes through a positioning hole on a reset connecting rod positioning plate to be contacted with the upper surface of the tail end of the indication connecting rod; the inner side of the tail end of the indicating connecting rod is contacted with a baffle plate, and the baffle plate can move forwards and backwards; the outer part of the tail end of the indication connecting rod is provided with a protective cover which is fixedly arranged on the side edge of the lower part of the mechanism bracket.
Preferably, the upper part of the mechanism bracket is also provided with a test reset button, the lower end of the mechanism bracket is connected with a test reset connecting rod, the test reset connecting rod is sleeved with a spring, and the spring passes through a positioning hole on a positioning plate of the test reset connecting rod to be contacted with the surface of the upper part of the baffle plate, which is bent at one side; the test reset connecting rod locating plate is fixed on the mechanism bracket through welding or screws.
Preferably, the return connecting rod is sleeved with a spring.
Preferably, the shape of the protective cover is U-shaped.
Preferably, the protective cover is fixed to the mechanism support by welding or screws.
Preferably, the reset connecting rod positioning plate is fixed on the mechanism bracket through welding or screws.
Preferably, the device is a rapid motion recognition device applicable to a QJ-80 type relay.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: the invention solves the problems that the currently used gas relay automatically returns to the original state after the fault disappears and the action condition of the gas relay cannot be maintained, so that the actual action condition of the gas relay cannot be confirmed; the device simple structure, the simple operation, the cost of manufacture is low, and the instruction is clear, uses the quick recognition device of gas relay action after, can judge the gas relay action condition of main transformer rapidly and accurately, and clear fault interval fast, clear team's responsibility, the main and secondary are clear, the rapid processing, carry out inspection, experimental analysis work with pertinence, practice thrift the manpower, improved work efficiency, reduced maintenance cost, shortened the down time of main transformer simultaneously, reduced economic loss.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the connection relationship between the indicating link and the return link according to the present invention;
in the figure: 1. a reset button; 2. a mechanism bracket; 3. an indication link; 4. a protective cover; 5. a return link; 6. resetting the connecting rod positioning plate; 7. a baffle; 8. a test reset button; 9. a test reset connecting rod; 10. test reset connecting rod locating plate; 11. and (3) a spring.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
Example 1
A gas relay action rapid identification method comprises the following steps:
1) A rapid action recognition device is arranged below the front of the baffle of the gas relay, and an indication connecting rod 3 is arranged on the rapid action recognition device and can displace along with the action of the gas relay;
2) Checking whether the indicating connecting rod 3 on the action rapid identification device is shifted or not according to the occurrence condition of the gas relay signal, and judging the cause of the fault according to the position; if the indication link 3 is displaced, the conditions of the inside of the main transformer and the gas relay are checked with emphasis. If the indication link 3 is not displaced, the protection device and the secondary circuit are inspected with emphasis.
3) After the inspection is completed and the fault is eliminated, the indication connecting rod 3 of the action rapid identification device is reset.
The method is to add a rapid identification device which acts along with the action of the gas relay, and judge the action condition of the gas relay through the deflection of the rapid identification device, so as to analyze whether the gas relay has internal faults or is caused by misoperation of a secondary circuit and a protection device. If the quick recognition device has deflection, the gas relay is proved to act indeed; otherwise, the secondary circuit and the protection device are caused.
The quick gas relay action recognition device comprises a reset button 1, a mechanism bracket 2, an indication connecting rod 3, a protective cover 4 and a baffle 7; the reset button 1 is arranged at the upper part of the mechanism bracket 2, the lower end of the reset button is connected with a reset connecting rod 5, a spring 11 is sleeved on the reset connecting rod 5, and the spring passes through a positioning hole on a reset connecting rod positioning plate 6 to be contacted with the upper surface of the tail end of the indication connecting rod 3; the inner side of the tail end of the indicating connecting rod 3 is contacted with the baffle 7, and the baffle 7 can move forwards and backwards; the outer U-shaped protection cover 4 is arranged at the tail end of the indication connecting rod 3, and the protection cover 4 is fixed on the side edge of the lower part of the mechanism bracket 2 through screws. The upper part of the mechanism bracket 2 is also provided with a test reset button 8, the lower end of the test reset button is connected with a test reset connecting rod 9, the test reset connecting rod 9 is sleeved with a spring 11, and the spring passes through a positioning hole on a test reset connecting rod positioning plate 10 to be contacted with the surface of the baffle 7, which is bent at one side of the upper part; the test reset connecting rod positioning plate 10 is welded on the mechanism bracket 2; the device is a rapid action recognition device applicable to a QJ-80 relay.
When the inside of the transformer fails, gas is generated, the baffle 7 is impacted by oil flow to move backwards, the tail end of the indicating connecting rod 3 loses supporting force, the indicating connecting rod is turned downwards to be in an indicating position under the action of self gravity, and the indicating connecting rod is used as an effective indication after the action of the gas relay, so that the quick identifying device is obvious; when the baffle 7 is reset, the indicating connecting rod 3 still stays at the indicating position to be used as an indication, and when the fault is cleared, the reset button 1 is pressed down, so that the action rapid identification device is restored to the initial state, namely the normal working state, and the indicating connecting rod 3 is reset and can wait for the next use. The function of the protective cover 4 is to protect the indicating link 3 from deformation due to strong air flow and oil flow; the mechanism support 2 supports the whole device and prevents the device from deforming and dislocating.
The invention solves the problems that the currently used gas relay automatically returns to the original state after the fault disappears and the action condition of the gas relay cannot be maintained, so that the actual action condition of the gas relay cannot be confirmed; the device simple structure, the simple operation, the cost of manufacture is low, and the instruction is clear, uses the quick recognition device of gas relay action after, can judge the gas relay action condition of main transformer rapidly and accurately, and clear fault interval fast, clear team's responsibility, the main and secondary are clear, the rapid processing, carry out inspection, experimental analysis work with pertinence, practice thrift the manpower, improved work efficiency, reduced maintenance cost, shortened the down time of main transformer simultaneously, reduced economic loss.
The foregoing description of the disclosed embodiments will so enable one skilled in the art to make or use the invention, and many modifications of this embodiment will be readily apparent to those skilled in the art from the description, to devise other arrangements of the products which, although still within the spirit and scope of this invention, are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The quick recognition device for the gas relay action is characterized by comprising a reset button (1), a mechanism bracket (2), an indication connecting rod (3), a protective cover (4) and a baffle plate (7); the reset button (1) is arranged at the upper part of the mechanism bracket (2), the lower end of the reset button is connected with a reset connecting rod (5), and the reset connecting rod (5) passes through a positioning hole on a reset connecting rod positioning plate (6) to be contacted with the upper surface of the tail end of the indication connecting rod (3); the inner side of the tail end of the indicating connecting rod (3) is contacted with a baffle (7), and the baffle (7) can move forwards and backwards; the outer part of the tail end of the indication connecting rod (3) is provided with a protective cover (4), the protective cover (4) is fixedly arranged on the side edge of the lower part of the mechanism support (2), the upper part of the mechanism support (2) is also provided with a test reset button (8), the lower end of the mechanism support is connected with a test reset connecting rod (9), the test reset connecting rod (9) is sleeved with a spring (11), and the spring passes through a positioning hole on a test reset connecting rod positioning plate (10) to be contacted with the surface bent at one side of the upper part of the baffle plate (7); the test reset connecting rod positioning plate (10) is fixed on the mechanism bracket (2) through welding or screws, and the reset connecting rod (5) is sleeved with a spring (11).
2. The gas relay action rapid identification apparatus according to claim 1, wherein the protective cover (4) is U-shaped.
3. The gas relay action rapid identification device according to claim 1, wherein the protective cover (4) is fixed on the mechanism bracket (2) by welding or screws.
4. The gas relay action rapid identification apparatus according to claim 1, wherein the return link positioning plate (6) is fixed on the mechanism bracket (2) by welding or screws.
5. The gas relay motion rapid identification apparatus according to claim 1, wherein the apparatus is a motion rapid identification apparatus applicable to a QJ-80 type relay.
6. A gas relay action rapid identification method using a gas relay action rapid identification apparatus according to claim 1, characterized by comprising the steps of:
1) A rapid action recognition device is arranged below the front of the baffle of the gas relay, and an indication connecting rod (3) is arranged on the rapid action recognition device and can be displaced along with the action of the gas relay;
2) Checking whether the indicating connecting rod (3) on the action rapid identification device is shifted or not according to the occurrence condition of the gas relay signal, and judging the cause of the occurrence of the fault according to the position;
3) After the inspection is finished and the fault is eliminated, the indication connecting rod (3) of the action rapid identification device is reset.
7. The method for quickly recognizing the action of the gas relay according to claim 6, wherein in the step 2), if the indication connecting rod (3) is shifted, the condition of the inside of the main transformer and the gas relay is mainly checked.
8. The method for quickly recognizing gas relay operation according to claim 6, wherein in the step 2), if the indication link (3) is not displaced, the protection device and the secondary circuit are mainly checked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611134752.2A CN106371015B (en) | 2016-12-11 | 2016-12-11 | Gas relay action rapid identification method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611134752.2A CN106371015B (en) | 2016-12-11 | 2016-12-11 | Gas relay action rapid identification method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106371015A CN106371015A (en) | 2017-02-01 |
| CN106371015B true CN106371015B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611134752.2A Active CN106371015B (en) | 2016-12-11 | 2016-12-11 | Gas relay action rapid identification method and device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111751719B (en) * | 2020-06-29 | 2021-11-16 | 深圳供电局有限公司 | Method and system for judging transformer protection trip edge based on power grid fault recording diagram |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2817045Y (en) * | 2006-01-25 | 2006-09-13 | 吉林省电力科技有限公司 | Action indication gas relay |
| CN102157299A (en) * | 2011-03-23 | 2011-08-17 | 刘畅 | Online monitoring gas relay |
| CN201975334U (en) * | 2011-03-23 | 2011-09-14 | 刘畅 | Gas relay with on-line monitoring function |
| 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 |
| CN206248788U (en) * | 2016-12-11 | 2017-06-13 | 国家电网公司 | Buchholz relay acts quick identifying device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6756701B2 (en) * | 2001-12-05 | 2004-06-29 | John Ernest Elwart | Shock responsive momentary relay |
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2016
- 2016-12-11 CN CN201611134752.2A patent/CN106371015B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2817045Y (en) * | 2006-01-25 | 2006-09-13 | 吉林省电力科技有限公司 | Action indication gas relay |
| CN102157299A (en) * | 2011-03-23 | 2011-08-17 | 刘畅 | Online monitoring gas relay |
| CN201975334U (en) * | 2011-03-23 | 2011-09-14 | 刘畅 | Gas relay with on-line monitoring function |
| 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 |
| CN206248788U (en) * | 2016-12-11 | 2017-06-13 | 国家电网公司 | Buchholz relay acts quick identifying device |
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| CN106371015A (en) | 2017-02-01 |
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