CN101221217A - SF6 gas density relay checking instrument and checking process - Google Patents
SF6 gas density relay checking instrument and checking process Download PDFInfo
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- CN101221217A CN101221217A CNA2007100363024A CN200710036302A CN101221217A CN 101221217 A CN101221217 A CN 101221217A CN A2007100363024 A CNA2007100363024 A CN A2007100363024A CN 200710036302 A CN200710036302 A CN 200710036302A CN 101221217 A CN101221217 A CN 101221217A
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Abstract
The invention discloses a calibration process of a calibrator of an SF6 density relay and comprises the following steps: step 1, the process is started; step 2, a self check is carried out; step 3, an instruction is chosen from the choices of calibration preparation, data query, time setting, pressure conversion, help viewing and device marking; if the calibration preparation is chosen, a step 3.1 is carried out, and in the calibration preparation, a step 3.11 is firstly implemented to set a number for the test object; then a step 3.12 is carried out to select a number of contact points; a step 3.13 is carried out after one item is selected, in which a nominal parameter is set; then a step 3.14 is carried out to adjust the pressure to a nominal value; after that, a step 3.15 is carried out to start a calibration; a step 3.16 is carried out after the calibration is finished, which chooses whether to end the calibration or not; if the choice is no, the invention returns to a step 3.14, while if the choice is yes, the invention turns to a step 3.17 to store and print the result. The invention has the advantages of simple operation, fitting for on-site calibration processes, and labor-saving property and convenient using.
Description
Technical field
The present invention relates to a kind of to SF
6The performance of gas density relay is carried out the SF of verification
6Gas density relay checking instrument and checking process.
Technical background
SF
6Electric product has been widely used in power department, industrial and mining enterprises, has promoted the fast development of power industry.How to guarantee SF
6The reliable and secure operation of electric product has become one of vital task of power department.SF
6Gas density relay is SF
6One of key element of electric switch, it is used for detecting SF
6SF in the electrical equipment body
6The variation of gas density, its performance quality directly has influence on SF
6The reliable and secure operation of electrical equipment.Be installed on on-the-spot SF
6Gas density relay is because of often action, and the phenomenon of dumb or poor contact of contacts often appears moving in after date during through one section, and what have also the temperature compensation degradation can occur, causes SF when variation of ambient temperature easily
6The gas density relay misoperation.Therefore, to the SF at scene
6It is to prevent trouble before it happens that gas density relay carries out periodic check, ensures one of necessary means of power equipment safety reliability service.In airtight container, the SF under the uniform temperature
6Gaseous tension can be represented SF
6Gas density.In order to unify SF during traditionally often 20 ℃
6The pressure of gas is as the typical value of its corresponding density.So, SF
6Gas density relay SF during all with 20 ℃
6The pressure of gas is as scale value.At the scene during verification, under different environment temperatures, the normal pressure value the when force value that measures all will be converted to its corresponding 20 ℃, thus judge this SF
6The performance of gas density relay.Present SF
6The method of calibration of gas density relay mainly contains following several on the engineering:
One. utilize SF
6The equipment gas replenishment process carries out verification to density monitor.This method is mainly used in the scene, and there is following problem in it: (1) temperature effect is big, is difficult to guarantee accuracy; (2) utilize SF
6Table meter reading on the gas cylinder, degree of accuracy is very poor, can not guarantee accuracy; (3) SF
6Density monitor is applied to the step-down process, and comes verification with gas replenishment process, does not conform to practical situations, also influences verification and accurately goes.
Two. utilize SF
6The equipment deflation course is to the density monitor verification.Exist in this way with method one in (1), (2) same problem, and will be during venting to SF
6Gas recovery needs with special SF
6Gas concentration unit, very inconvenient; (3) need in the constant temperature enclosure verification.This method of calibration is carried out in isoperibol, eliminated the error that temperature is brought verification, therefore the accuracy of verification is higher, but checking time is long in this way, need set up special constant temperature laboratory, and to set up the full-time worker, and increased on-the-spot work difficulty, both uneconomical also inconvenient.In fact, be unpractical at the scene;
Three. the SF of present employed various models
6Gas density relay checking instrument, though the pressure and temperature value when adopting the test density actuating of relay basically, according to the pressure-temperature characteristic relation of SF6 gas, force value when utilizing microcomputer to be converted into 20 ℃ automatically promptly can be carried out automatic dynamic temp compensation then.But these testers all exist and use trouble and inconvenient, and its verification operation step does not meet on-the-spot the use.
Summary of the invention
The objective of the invention is to solve the problems referred to above that prior art exists, a kind of simple to operate, SF of meeting the field-checking flow process is provided
6The checking process of gas density relay checking instrument.This checking process is by a SF
6Gas density relay checking instrument carries out and realizes.
Realize that the above-mentioned purpose technical scheme is: a kind of SF
6The checking process of gas density relay checking instrument may further comprise the steps: step 1, beginning; Step 2, self check, but but check deposit data and residue deposit data; Step 3, selection instruction has verification preparation, data query, the time is set, reduced pressure, help is checked and instrumental calibration is selective; If selection check is prepared, then enter step 3.1, verification is prepared, elder generation's execution in step 3.11, setting test article numbering, then execution in step 3.12 is selected number of contacts, has warning contact, warning contact+locking contact, warning contact+locking 1 contact+locking 2 contacts and warning contact+locking contact+superpressure contact selective; Enter step 3.13 after selected one, set nominal parameter, must set rated pressure value, precision, alarm pressure value and locking force value; Enter step 3.14 then, adjust pressure to ratings, execution in step 3.15 afterwards, and verification begins, verification rated pressure value, alarm pressure value, warning returning pressure value, locking force value and locking returning pressure value; Enter step 3.16 after verification is finished, select whether to finish this verification; If select then not get back to step 3.14, be then to enter step 3.17, storage and print result if select.
Above-mentioned SF
6The checking process of gas density relay checking instrument wherein, can also enter following steps after described step 3 selection instruction: step 3.2, and the data query instruction is introduced into step 3.21, selects the data query mode; If select then to enter step 3.211, inquire about and obtain Query Result by the numbering inquiry; If select inquiry by date, then enter step 3.212, inquire about and obtain Query Result.
Above-mentioned SF
6The checking process of gas density relay checking instrument wherein, can also enter following steps after described step 3 selection instruction: step 3.3, and the reduced pressure instruction is introduced into step 3.31, selection pressure conversion mode; If select to be converted to 20 ℃ of force value by the force value under other temperature, then enter step 3.311, convert and obtain the result that converts; If select to be converted to force value under other temperature by 20 ℃ of force value, then enter step 3.312, convert and obtain the result that converts.
Above-mentioned SF
6The checking process of gas density relay checking instrument, wherein, after described step 3 selection instruction, can also enter following steps: step 3.4, the calibrating instrument instruction is introduced into step 3.41, set the instrumental calibration password, then enter step 3.42, established standards parameter, the standard temperature and the pressure criteria value of setting on-line measurement, enter step 3.43 then, the revision instrument parameter; Calculate the pressure and temperature deviate according to the pressure criteria value of setting and the actual pressure value and the temperature value of standard temperature and on-line measurement, revise the pressure and temperature parameter of instrument then.
Above-mentioned SF
6The checking process of gas density relay checking instrument wherein, can enter following steps after described step 3 selection instruction: step 3.5, check help command.
Above-mentioned SF
6The checking process of gas density relay checking instrument, wherein, can also enter following steps after described step 3 selection instruction: step 3.6 is provided with time command.
Above-mentioned SF
6The checking process of gas density relay checking instrument wherein, when carrying out described step 3.15, is to begin verification according to the rule that pressure is reduced earlier to increase again.
Above-mentioned SF
6The checking process of gas density relay checking instrument, wherein, described step 3.15 is between the step 3.16, when the force value in the test result in the step 3.15 ratings 0.15Mpa occurs being lower than or is higher than ratings 0.1Mpa, need to check wiring and test article contact situation, then increase step 3.16 ' inspection fault, get back to step 3.15 then.
Above-mentioned SF
6The checking process of gas density relay checking instrument, wherein, when the described step 3.11 of execution was set the test article numbering, existing if the test article of setting is numbered, test just entering step 3.12 again if desired; Or return and enter step 3.12 after step 3.11 resets test article numbering.
Above-mentioned SF
6The checking process of gas density relay checking instrument, wherein, the order between step 3.11, step 3.12 and the step 3.13 allows to exchange.
The advantage of the checking process of SF6 gas density relay of the present invention is: this checking process is simple to operate, meet the field-checking flow process and use laborsaving and convenience, automatic verification by to product to be tested tests out this test article, and promptly whether the SF6 gas density relay is qualified; Manually reading and record, these related datas are easy to storage, print, judge and handle simultaneously, and can further work out test report.
Description of drawings
Fig. 1 is SF of the present invention
6The structural representation of gas density relay checking instrument;
Fig. 2 is SF of the present invention
6The FB(flow block) of the checking process of gas density relay.
Embodiment
See also Fig. 1, SF of the present invention
6The checking process of gas density relay checking instrument is to adopt following SF
6Gas density relay checking instrument is finished, this tester comprises that the source of the gas of an adjustable in pressure provides mechanism 15, a pressure transducer 16, a temperature sensor 17, a computer data processing system 18 is connected the display screen 19 of computer data processing system with one, computer data processing system is provided with the actuating signal input port of measured relay 14, source of the gas provides mechanism 15 to connect tracheae 150 by one provides the reverse checkvalve in the mechanism 15 to be communicated with in measured relay 14 verification mouths and source of the gas, pressure transducer 16 is transferred to computer data processing system 18 with pressure signal, and temperature sensor 17 is transferred to computer data processing system 18 with the temperature signal of measured relay 14.
See also Fig. 2 again, SF of the present invention
6The checking process of gas density relay may further comprise the steps:
Step 100, beginning; Step 200, self check, but but check deposit data and residue deposit data; Step 300, selection instruction has verification preparation, data query, the time is set, reduced pressure, help is checked and instrumental calibration is selective; According to the prompting on the LCD screen 19, should choose one this moment wantonly, if selection check is prepared, then enters step 310, and verification is prepared, and first execution in step 311 is set the test article numbering, if the test article of setting numbering is existing, test just enters step 312 again if desired; Or return and enter step 312 after step 311 resets test article numbering, step 312 is selected number of contacts, has warning, warning+locking, warning+locking 1+ locking 2 and warning+locking+superpressure selective; According to the prompting on the LCD screen 19, enter step 313 after selected one, set nominal parameter, P (pressure) ratings, precision, P (pressure) alarming value and P (pressure) locking value all must be set; Enter step 314 then, adjust pressure to ratings, whether observe force value earlier meets the requirements, if force value is on the low side, slowly opening source of the gas again provides the air reservoir valve 152 of mechanism 15, after the observation force value has arrived desired force value, just close air reservoir valve 152, counter-clockwise direction is shaken handwheel 151 then, reduce pressure, to during the pressure nominal value of the density monitor 14 tested, execution in step 315 afterwards, and verification begins, have ratings in the verification, alarming value, the warning rreturn value, locking value and locking rreturn value, when verification, be to begin verification, according to the prompting on the LCD screen 19 according to the rule that pressure is reduced earlier to increase again, elder generation's verification ratings, and then according to the prompting on the LCD screen 19, counter-clockwise direction is shaken handwheel 151 again, reduces pressure, to during the locking value of the density monitor 14 tested, clockwise direction is shaken handwheel 151 again, and pressure boost is to during the warning rreturn value of the density monitor tested.After finishing verification, show this measurement result on the LCD screen 19, when the force value in the test result ratings 0.15Mpa occurs being lower than or is higher than ratings 0.1Mpa, need to check wiring and test article contact situation, then increase step 316 ' the inspection fault.When force value is lower than ratings 0.15Mpa, this contact is also obstructed, and this contact place has problem or contact obstructed with regard to showing wiring, or one is straight-through; When force value is higher than ratings 0.1Mpa, this contact is also obstructed, and this contact place has problem or contact obstructed with regard to showing wiring, or one is straight-through.Fault is got back to step 315 after getting rid of.Show force value, deviate and conclusion after verification is finished on the LCD screen 19, enter step 316 afterwards, select whether to finish this verification; If select then not get back to step 314, verification behind the new adjustment pressure; If select to be, then enter step 317, storage and print result.
After step 300 selection instruction, can also enter following steps: step 320, the data query instruction is introduced into step 321, selects the data query mode; According to the prompting on the LCD screen 19,, inquire about and obtain Query Result if select then to enter step 3211 by the numbering inquiry; Obtain after input test product numbering is confirmed earlier: test product numbering, test duration, ratings, alarming value, locking value and precision.Also can then inquire about raw data.If select inquiry by date, then enter step 3212, inquire about and obtain Query Result.Obtain after the date affirmation of input earlier: test product numbering, test duration, ratings, alarming value, locking value and precision.Also can then inquire about raw data.
After step 300 selection instruction, can also enter following steps: step 330, the reduced pressure instruction is introduced into step 331, selection pressure conversion mode; According to the prompting on the LCD screen 19, if select PT (force value under other temperature) to be converted to P20 (20 ℃ of force value), then enter step 3311, convert and obtain the result that converts; Obtain the P20 value this moment.If select to be converted to PT (force value under other temperature) by P20 (20 ℃ of force value), then enter step 3312, convert and obtain the result that converts.Obtain the PT value this moment.
After described step 300 selection instruction, can also enter following steps: step 340, the calibrating instrument instruction, be introduced into step 341, set the instrumental calibration password, tester meeting initiation parameter then enters step 342 behind the affirmation instrumental calibration password, the established standards parameter, the standard temperature T of on-line measurement and pressure criteria value P enter step 343 then, revise instrument parameter; Calculate the pressure and temperature deviate according to the pressure and temperature standard value of setting and the pressure and temperature value of on-line measurement, revise the pressure and temperature parameter of instrument then.
After step 300 selection instruction, can also enter following steps: step 350, check help command.Mainly be explanation, the explanation of instrumentation step of each operating key.
Can also enter following steps after step 300 selection instruction: step 360 is provided with time command.
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (10)
1. SF
6The checking process of gas density relay checking instrument may further comprise the steps:
Step 1, beginning;
Step 2, self check, but but check deposit data and residue deposit data;
Step 3, selection instruction has verification preparation, data query, the time is set, reduced pressure, help is checked and instrumental calibration is selective; If selection check is prepared, then enter
Step 3.1, verification is prepared, and carries out earlier
Step 3.11 is set the test article numbering, then carries out
Step 3.12 is selected number of contacts, has warning contact, warning contact+locking contact, warning contact+locking 1 contact+locking 2 contacts and warning contact+locking contact+superpressure contact selective; Enter after selected one
Step 3.13 is set nominal parameter, must set rated pressure value, precision, alarm pressure value and locking force value; Enter then
Step 3.14 is adjusted pressure to ratings, carries out afterwards
Step 3.15, verification begins, verification rated pressure value, alarm pressure value, warning returning pressure value, locking force value and locking returning pressure value; Verification enters after finishing
Step 3.16 selects whether to finish this verification; If select then not get back to step 3.14, be then to enter if select
Step 3.17, storage and print result.
2. SF according to claim 1
6The checking process of gas density relay checking instrument is characterized in that, can also enter following steps after described step 3 selection instruction:
Step 3.2, the data query instruction is introduced into
Step 3.21 is selected the data query mode; Then enter by the numbering inquiry if select
Query Result is inquired about and obtained to step 3.211; If select inquiry by date, then enter
Query Result is inquired about and obtained to step 3.212.
3. SF according to claim 1
6The checking process of gas density relay checking instrument is characterized in that, can also enter following steps after described step 3 selection instruction:
Step 3.3, the reduced pressure instruction is introduced into
Step 3.31, selection pressure conversion mode; If select to be converted to 20 ℃ of force value, then enter by the force value under other temperature
Step 3.311 converts and obtains the result that converts; If select to be converted to force value under other temperature, then enter by 20 ℃ of force value
Step 3.312 converts and obtains the result that converts.
4. SF according to claim 1
6The checking process of gas density relay checking instrument is characterized in that, can also enter following steps after described step 3 selection instruction:
Step 3.4, the calibrating instrument instruction is introduced into
Step 3.41 is set the instrumental calibration password, then enters
Step 3.42, the established standards parameter, the standard temperature and the pressure criteria value of setting on-line measurement enter then
Step 3.43, the revision instrument parameter; Calculate the pressure and temperature deviate according to the pressure criteria value of setting and the actual pressure value and the temperature value of standard temperature and on-line measurement, revise the pressure and temperature parameter of instrument then.
5. SF according to claim 1
6The checking process of gas density relay checking instrument is characterized in that, can enter following steps after described step 3 selection instruction:
Step 3.5 is checked help command.
6. SF according to claim 1
6The checking process of gas density relay checking instrument is characterized in that, can also enter following steps after described step 3 selection instruction:
Step 3.6 is provided with time command.
7. SF according to claim 1
6The checking process of gas density relay checking instrument is characterized in that, when carrying out described step 3.15, is to begin verification according to the rule that pressure is reduced earlier to increase again.
8. SF according to claim 2
6The checking process of gas density relay checking instrument, it is characterized in that, described step 3.15 is between the step 3.16, when the force value in the test result in the step 3.15 ratings 0.15Mpa occurs being lower than or is higher than ratings 0.1Mpa, need to check wiring and test article contact situation, then increase step 3.16 ' inspection fault, get back to step 3.15 then.
9. SF according to claim 1
6The checking process of gas density relay checking instrument is characterized in that, when the described step 3.11 of execution was set the test article numbering, existing if the test article of setting is numbered, test just entering step 3.12 again if desired; Or return and enter step 3.12 after step 3.11 resets test article numbering.
10. SF according to claim 1
6The checking process of gas density relay checking instrument is characterized in that, the order between step 3.11, step 3.12 and the step 3.13 allows to exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100363024A CN101221217A (en) | 2007-01-09 | 2007-01-09 | SF6 gas density relay checking instrument and checking process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100363024A CN101221217A (en) | 2007-01-09 | 2007-01-09 | SF6 gas density relay checking instrument and checking process |
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| Publication Number | Publication Date |
|---|---|
| CN101221217A true CN101221217A (en) | 2008-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100363024A Pending CN101221217A (en) | 2007-01-09 | 2007-01-09 | SF6 gas density relay checking instrument and checking process |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187265A (en) * | 2019-05-29 | 2019-08-30 | 知为力(成都)科技有限公司 | A kind of density monitor calibration equipment |
| CN110361648A (en) * | 2019-07-23 | 2019-10-22 | 国网上海市电力公司 | A kind of sulfur hexafluoride gas density relay method of calibration and system |
| CN110411891A (en) * | 2019-09-04 | 2019-11-05 | 上海乐研电气有限公司 | Realize the non-maintaining on-site detecting device of gas density relay, system and method |
| CN110426314A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | On-line sampling check-up gas density electrical relay with defencive function |
| CN110426628A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | Transmitter and system for on-line testing gas density relay |
| CN110441680A (en) * | 2019-09-04 | 2019-11-12 | 上海乐研电气有限公司 | A kind of gas density relay and its method of calibration with online self checking function |
| CN110487670A (en) * | 2019-09-04 | 2019-11-22 | 上海乐研电气有限公司 | A kind of gas density relay and its method of calibration with online self checking function |
| CN110514996A (en) * | 2019-09-04 | 2019-11-29 | 上海乐研电气有限公司 | A kind of remodeling method of gas density relay |
| CN110542852A (en) * | 2019-09-04 | 2019-12-06 | 上海乐研电气有限公司 | transformation method of gas density relay |
| WO2021043040A1 (en) * | 2019-09-04 | 2021-03-11 | 上海乐研电气有限公司 | Electrical system with on-line sampling verification function and verification method thereof |
| WO2021043039A1 (en) * | 2019-09-04 | 2021-03-11 | 上海乐研电气有限公司 | Transformation method for gas density relay, and gas density relay having online self-check function and check method thereof |
| CN115902611A (en) * | 2022-11-24 | 2023-04-04 | 国网四川省电力公司映秀湾水力发电总厂 | Relay calibration method and device and calibrator |
-
2007
- 2007-01-09 CN CNA2007100363024A patent/CN101221217A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187265A (en) * | 2019-05-29 | 2019-08-30 | 知为力(成都)科技有限公司 | A kind of density monitor calibration equipment |
| CN110361648A (en) * | 2019-07-23 | 2019-10-22 | 国网上海市电力公司 | A kind of sulfur hexafluoride gas density relay method of calibration and system |
| CN110411891A (en) * | 2019-09-04 | 2019-11-05 | 上海乐研电气有限公司 | Realize the non-maintaining on-site detecting device of gas density relay, system and method |
| CN110426314A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | On-line sampling check-up gas density electrical relay with defencive function |
| CN110426628A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | Transmitter and system for on-line testing gas density relay |
| CN110441680A (en) * | 2019-09-04 | 2019-11-12 | 上海乐研电气有限公司 | A kind of gas density relay and its method of calibration with online self checking function |
| CN110487670A (en) * | 2019-09-04 | 2019-11-22 | 上海乐研电气有限公司 | A kind of gas density relay and its method of calibration with online self checking function |
| CN110514996A (en) * | 2019-09-04 | 2019-11-29 | 上海乐研电气有限公司 | A kind of remodeling method of gas density relay |
| CN110542852A (en) * | 2019-09-04 | 2019-12-06 | 上海乐研电气有限公司 | transformation method of gas density relay |
| WO2021043040A1 (en) * | 2019-09-04 | 2021-03-11 | 上海乐研电气有限公司 | Electrical system with on-line sampling verification function and verification method thereof |
| WO2021043039A1 (en) * | 2019-09-04 | 2021-03-11 | 上海乐研电气有限公司 | Transformation method for gas density relay, and gas density relay having online self-check function and check method thereof |
| CN115902611A (en) * | 2022-11-24 | 2023-04-04 | 国网四川省电力公司映秀湾水力发电总厂 | Relay calibration method and device and calibrator |
| CN115902611B (en) * | 2022-11-24 | 2024-03-19 | 国网四川省电力公司映秀湾水力发电总厂 | Relay calibration method, device and calibrator |
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Open date: 20080716 |