CN2653493Y - Sulfur hexafluoride gas density relay tester - Google Patents
Sulfur hexafluoride gas density relay tester Download PDFInfo
- Publication number
- CN2653493Y CN2653493Y CN 03255196 CN03255196U CN2653493Y CN 2653493 Y CN2653493 Y CN 2653493Y CN 03255196 CN03255196 CN 03255196 CN 03255196 U CN03255196 U CN 03255196U CN 2653493 Y CN2653493 Y CN 2653493Y
- Authority
- CN
- China
- Prior art keywords
- sulfur hexafluoride
- compressor
- density relay
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model relates to a gas density relay detector for sulfur hexafluoride, which consists of a single plate industrial computer, an energy accumulator and a compressor, and is characterized in that: the output air path is communicated with the cylinder of the SF<6>, the output of the compressor is communicated with the input air path of the energy accumulator, a fall electromagnetic valve is arranged at the air path between the compressor and the energy accumulator. The utility model can be connected with the density interface and the pressure gauge interface of the sulfur hexafluoride device by various special connectors, to from a closed air path; compare the data from density relay pressure gauge of the sulfur hexafluoride electric device with the data from the precise pressure sensor of the detector to check the density relay and the pressure gauge at the sulfur hexafluoride electric device. The utility model is provided with a temperature sensor. The single plate industrial computer realizes a completely automatic process of test, calculation and display.
Description
Technical field
The utility model belongs to the proving installation of electrical equipment in a kind of high-voltage electrical equipment, is a kind of sulfur hexafluoride gas density relay tester specifically.
Background technology
Sulfur hexafluoride (SF6) gas density relay is installed on SF
6On the electrical equipment, be to be used to monitor SF
6Equipment is promptly monitored SF in the cylinder as equipment gaseous tensions such as switch, GIS
6Pressure rises (decline) to P
2(not busy lock) or P
1The pressure of (warning) point.SF
6SF in the electrical equipment
6The pressure of gas is an important indicator that is related to equipment safety operation.When pressure was lower than alarming value or locking value, switch can be reported to the police or locking accordingly.If the shown force value of density monitor is inaccurate, then can cause switch to delay work, cause security incident.Therefore, to regularly carry out verification in national sector standard " power equipment preventive trial rules " regulation to sulfur hexafluoride gas density relay.The worn-out end of the gas circuit design of the first generation and second generation density monitor is that the instrument volume is big, heavy, poor air-tightness, adopts manual piston-cylinder to make SF in the cylinder
6Pressure rising (decline) operation, the effort that works together, complicated operation.
Summary of the invention
The purpose of this utility model provides a kind of be easy to carry and can the on-the-spot sulfur hexafluoride gas density relay tester that uses, to overcome above-mentioned deficiency.
To achieve these goals, the utility model mainly is made of veneer industrial computer, accumulator and compressor, is characterized in: the output gas circuit and the SF of accumulator
6Communicate in the cylinder, the output of compressor communicates with the input gas circuit of accumulator by a retaining valve, and the gas circuit between compressor and the accumulator is provided with a decline solenoid valve;
The data input pin of above-mentioned veneer industrial computer and SF
6Pressure transducer on the cylinder is connected with the data output end of temperature sensor;
Also be provided with a working pressure table on the gas circuit between above-mentioned compressor and the accumulator.
The utility model circuit part adopts monoboard microcomputer control, liquid crystal display, menu in Chinese, simple and clear; Alerting signal adopts sound and light alarm, and is intuitive and reliable.The air path part special configuration multichannel standard testing interface.The minute adjustment needle valve is selected in gas circuit control for use, and impermeability is good, and control is convenient; Control panel is designed beautifully clear, is convenient to the operator and uses.The utility model can join by various dissimilar special joints and density monitor interface or the pressure gauge connection on the sulfur hexafluoride equipment, form a sealing gas circuit, by comparing density monitor tensimeter and the measured numerical value of tester precision pressure sensor on the sulfur hexafluoride electrical equipment, with the density monitor on the verification sulfur hexafluoride electrical equipment, tensimeter.The utility model is equipped with temperature sensor, by the veneer industrial computer, realizes test, calculates, shows full process automatization.The utility model is one can actually use the intelligent portable density monitor tester of dependable performance.
Description of drawings
Accompanying drawing is the utility model functional-block diagram.
Embodiment
Further specify the utility model below in conjunction with accompanying drawing.
As shown in drawings: SF in cylinder
6Pressure rises (decline) to P
2(locking) or P
1During (warning) point, pressure transducer 1 can be changed the force value that records by modulus (A/D), become digital signal, imported in the veneer industrial computer 3, and simultaneous temperature sensor 2 can convert the temperature value that records to digital signal by A/D and passes in the veneer industrial computer 3, veneer industrial computer 3 with the force value under the duty, is converted into the force value under the standard state by calculating.Realized density monitor P
1(warning), P
2The precision pressure measured value of (locking) point.Thereby judge whether density monitor is qualified.The utility model replaces manual piston-cylinder with accumulator 4 and compressor 5 to be operated, the startup of the opening of the startup of the utility model compressor 5, accumulator 4 output gas circuits, retaining valve 6 and decline solenoid valve 7 is by 3 controls of veneer industrial computer, realized full automatic operating process with this, realized boosting, step-down is full-automatic, and impermeability is good, and volume had also dwindled than originally.Working pressure table 8 is used to show the pressure of gas circuit.
The utility model with A/D converter send with pressure, the corresponding standard electric signal of temperature value after, through isolating shaping, send into single-chip microcomputer in the veneer industrial computer 3, show through calculating standard state downforce value and delivering on the display then.Because what pressure transducer 1 recorded is at ambient temperature force value, must be converted into standard temperature state downforce value, could be as check results, so the utility model adopts veneer industrial computer 3 to finish functions such as calculating, demonstration.What algorithm adopted is that engineering matrix number process of iteration is finished.The temperature compensation result who utilizes matrix iteration to calculate is very accurate, can satisfy the requirement of this Instrument measuring precision fully.
Claims (3)
1, a kind of sulfur hexafluoride gas density relay tester, constitute with compressor (5) by veneer industrial computer (3), accumulator (4), it is characterized in that: communicate in the output gas circuit of accumulator (4) and the SF6 cylinder, the output of compressor (5) communicates by the input gas circuit of a retaining valve (6) with accumulator (4), and the gas circuit between compressor (5) and the accumulator (4) is provided with a decline solenoid valve (7).
2, sulfur hexafluoride gas density relay tester as claimed in claim 1 is characterized in that: the data input pin and the SF of veneer industrial computer (3)
6Pressure transducer on the cylinder (1) is connected with the data output end of temperature sensor (2).
3, sulfur hexafluoride gas density relay tester as claimed in claim 1 is characterized in that: also be provided with a working pressure table (8) on the gas circuit between compressor (5) and the accumulator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255196 CN2653493Y (en) | 2003-08-26 | 2003-08-26 | Sulfur hexafluoride gas density relay tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255196 CN2653493Y (en) | 2003-08-26 | 2003-08-26 | Sulfur hexafluoride gas density relay tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653493Y true CN2653493Y (en) | 2004-11-03 |
Family
ID=34328589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255196 Expired - Fee Related CN2653493Y (en) | 2003-08-26 | 2003-08-26 | Sulfur hexafluoride gas density relay tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2653493Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206168B (en) * | 2006-12-22 | 2011-08-31 | 苏丽芳 | Method for checking SF6 gas density relay |
| CN102338672A (en) * | 2010-07-16 | 2012-02-01 | 四川电力试验研究院 | Internal temperature rise test and monitoring method of GIS |
| CN102508074A (en) * | 2011-11-03 | 2012-06-20 | 四川电力科学研究院 | Internal overheat fault monitoring method of metal sealed gas-insulated switchgear |
| CN103913704A (en) * | 2013-01-07 | 2014-07-09 | 王金胜 | Full-automatic SF6 gas density relay calibration instrument capable of recycling gas |
| CN104166089A (en) * | 2014-06-05 | 2014-11-26 | 西安亚能电气有限责任公司 | Sulfur hexafluoride density relay calibration instrument gas source system |
| CN105021982A (en) * | 2015-07-10 | 2015-11-04 | 安徽瑞鑫自动化仪表有限公司 | System for checking sulfur hexafluoride density relay |
| CN107389149A (en) * | 2017-08-07 | 2017-11-24 | 国家电网公司 | Scene operation SF6 gas insulated electric apparatus internal volume measurement apparatus and method |
-
2003
- 2003-08-26 CN CN 03255196 patent/CN2653493Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206168B (en) * | 2006-12-22 | 2011-08-31 | 苏丽芳 | Method for checking SF6 gas density relay |
| CN102338672A (en) * | 2010-07-16 | 2012-02-01 | 四川电力试验研究院 | Internal temperature rise test and monitoring method of GIS |
| CN102338672B (en) * | 2010-07-16 | 2012-12-26 | 四川电力试验研究院 | Internal temperature rise test and monitoring method of GIS |
| CN102508074A (en) * | 2011-11-03 | 2012-06-20 | 四川电力科学研究院 | Internal overheat fault monitoring method of metal sealed gas-insulated switchgear |
| CN102508074B (en) * | 2011-11-03 | 2013-10-16 | 四川电力科学研究院 | Internal overheat fault monitoring method of metal sealed gas-insulated switchgear |
| CN103913704A (en) * | 2013-01-07 | 2014-07-09 | 王金胜 | Full-automatic SF6 gas density relay calibration instrument capable of recycling gas |
| CN104166089A (en) * | 2014-06-05 | 2014-11-26 | 西安亚能电气有限责任公司 | Sulfur hexafluoride density relay calibration instrument gas source system |
| CN105021982A (en) * | 2015-07-10 | 2015-11-04 | 安徽瑞鑫自动化仪表有限公司 | System for checking sulfur hexafluoride density relay |
| CN107389149A (en) * | 2017-08-07 | 2017-11-24 | 国家电网公司 | Scene operation SF6 gas insulated electric apparatus internal volume measurement apparatus and method |
| CN107389149B (en) * | 2017-08-07 | 2023-11-10 | 国家电网公司 | Device and method for measuring internal volume of SF6 gas insulated electrical equipment in field operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |