CN102662152A - Electronic type mutual inductor as well as system and method for verifying merging unit - Google Patents
Electronic type mutual inductor as well as system and method for verifying merging unit Download PDFInfo
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- CN102662152A CN102662152A CN2012101486060A CN201210148606A CN102662152A CN 102662152 A CN102662152 A CN 102662152A CN 2012101486060 A CN2012101486060 A CN 2012101486060A CN 201210148606 A CN201210148606 A CN 201210148606A CN 102662152 A CN102662152 A CN 102662152A
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Abstract
The invention relates to an electronic type mutual inductor as well as a system and a method for a verifying merging unit. The invention comprises a verifying system for the electronic type mutual inductor and the verifying system for the merging unit, and an overall verifying method of the electronic type mutual inductor and the merging unit is changed into a mode of respectively verifying the electronic type mutual inductor and the merging unit, so that the positioning of a verifying result is precise, and a powerful reference can be provided for the analysis of an error link and device interchange; and the operation of the verifying method is simple, and operating personnel can finish verifying works through simple training. The verifying system not only can be used for verifying a traditional mutual inductor, but also can be used for verifying an electronic mutual inductor; analog quantity output can be verified, and digital quantity output can also be verified; and the electronic type mutual inductor and the merging unit can be respectively and separately verified, and the combination of the electronic type mutual inductor and the merging unit can also be verified, so that the invention has the advantage of simple operation.
Description
Technical field
The invention belongs to the power technology field; Relate to a kind of whole school check system and method with traditional electronic mutual inductor and merge cells and change the system and method that electronic mutual inductor and merge cells are carried out the school inspection respectively into; Inspection result location, school is more accurate; Promptly be applicable to electronic mutual inductor and traditional mutual inductor, can the verification analog quantity export and the output of check digit amount again, and the portable outstanding electronic mutual inductor and the school check system and the method for merge cells.
Background technology
Along with the construction of China's extra-high voltage grid and deepening constantly of power system reform; Intelligent grid will become a new direction of China's power network development; Intelligent grid requires to realize the integrated comprehensively of digital information systems such as monitoring, control, protection, maintenance, scheduling and electricity market management; Form comprehensive aid decision making body, electronic mutual inductor becomes the important component part of image data in the intelligent grid owing to itself.Because the output of the secondary of electronic mutual inductor is different with traditional electromagnetic transformer; Two kinds of electronic mutual inductor output patterns have clearly been stipulated among GB/T20840.7-2007 and the GB/T20840.8-2007: the analog quantity of small voltage signal and meet IEC 61850-9 form or the digital quantity of FT3 form; The output of this and traditional mutual inductor has difference in essence, and has also introduced brand-new merge cells (Merging Unit) equipment in the existing electronic mutual inductor scheme.Therefore, traditional transducer check mode is no longer suitable.Existing school inspection to electronic mutual inductor exists: the one, electronic mutual inductor and merge cells school inspection as a whole; Can not to analyze by electronic mutual inductor still be that merge cells produces to the result that obtains of school inspection like this; Cause the result of school inspection to locate inaccurate; Can't embody each link error,, will carry out integral replacing to electronic mutual inductor and merge cells if in the application process of reality, problem is arranged like this; Increase cost and burden to enterprise, and run counter to the device interchangeability principle that intelligent grid proposes; The 2nd, also do not have at present a kind of can the verification electronic mutual inductor again can verification tradition mutual inductor; Can the verification analog quantity export, can the check digit amount export again; Can independent verification electronic mutual inductor and merge cells, verification as a whole again, and the school check system and the method for electronic mutual inductor simple to operate and merge cells.
Summary of the invention
The objective of the invention is in order to overcome the deficiency of prior art; And provide a kind of whole school check system and method with traditional electronic mutual inductor and merge cells change into the school inspection result that electronic mutual inductor and merge cells are carried out the school inspection respectively locate accurately, can be applicable to verification electronic mutual inductor and traditional mutual inductor, can be the output of verification analog quantity and the output of check digit amount, the independent verification electronic mutual inductor of ability and also verification as a whole of merge cells, and the school check system and the method for electronic mutual inductor simple to operate and merge cells.
The objective of the invention is to realize like this:
A kind of school check system that is directed against the electronic mutual inductor of simulating signal output; Comprise standard mutual inductor, stepup transformer or current lifting device, power adjustment case and electronic mutual inductor school inspection appearance; Described electronic mutual inductor school inspection appearance comprises standard signal converter A and standard signal converter B, difference circuit, analogue collection module, data processing module and communication module; Described power adjustment case is connected with stepup transformer or current lifting device; Stepup transformer or current lifting device output terminal are connected with the once end of standard mutual inductor and tested electronic mutual inductor; The secondary output terminal of standard mutual inductor is connected with the standard input end of electronic transducer calibration instrument; The simulating signal output of tested mutual inductor is connected with the tested input end of electronic transducer calibration instrument; The standard input end of electronic transducer calibration instrument and tested input end are connected to difference circuit respectively behind standard signal converter A and standard signal converter B, analogue collection module connects standard input end and difference circuit output terminal simultaneously, and data processing module is connected with analogue collection module and communication module.
A kind of school check system that is directed against the electronic mutual inductor of digital signal output; Comprise standard mutual inductor, stepup transformer or current lifting device, power adjustment case and electronic mutual inductor school inspection appearance; Described electronic mutual inductor school inspection appearance comprises standard signal converter A, analogue collection module, data processing module and communication module; Described power adjustment case is connected with stepup transformer or current lifting device; Stepup transformer or current lifting device output terminal are connected with the once end of standard mutual inductor and tested electronic mutual inductor; The secondary output terminal of standard mutual inductor is connected with the standard input end of electronic transducer calibration instrument, and the digital signal output of tested mutual inductor is connected with the measured number signal input part of electronic transducer calibration instrument, and the standard input end of electronic transducer calibration instrument is connected with analogue collection module after standard signal converter A conversion; The measured number signal input part is connected with communication module, and analogue collection module and communication module all are connected with data processing module.
Described school check system or the described school check system that is directed against the electronic mutual inductor of digital signal output that is directed against the electronic mutual inductor of simulating signal output only is directed against the checking electronic type transformers measurement, do not comprise merge cells.
A kind of school check system of merge cells; Comprise merge cells school inspection appearance, the data analysis unit that links to each other with merge cells school inspection appearance; Inspection appearance in described merge cells school comprises the electronic mutual inductor emulation module, the standard merge cells emulation module that links to each other with the electronic mutual inductor emulation module, the clock module that links to each other with standard merge cells emulation module, the monitoring means that links to each other with clock module, the communication module that links to each other with monitoring means, and communication module links to each other with data analysis unit;
The electronic mutual inductor emulation module provides standard digital signals, exchanges simulating signal, exchanges conventional simulation signal, remote signals and synchronizing signal to tested merge cells;
Tested merge cells exports data analysis unit to after the standard signal that receives is made up;
The signal sampling that standard merge cells emulation module sends the electronic mutual inductor emulation module;
The signal sampling that standard merge cells emulation module obtains resamples through the delay parameter of clock module according to tested merge cells, passes to monitoring means;
The data that monitoring means receives pass to data analysis unit through communication module;
The data analysis unit analysis receive from the signal of tested merge cells and the signal of communication module, draw and show the sum of errors school inspection result of tested merge cells.
Described electronic mutual inductor emulation module output digital signal, interchange simulating signal, interchange conventional simulation signal, remote signals and synchronizing signal.
The combination school check system of a kind of electronic mutual inductor and merge cells; Comprise standard mutual inductor, stepup transformer or current lifting device, power adjustment case and electronic mutual inductor school inspection appearance; Described electronic mutual inductor school inspection appearance comprises standard signal converter A, analogue collection module, data processing module and communication module; Described power adjustment case is connected with stepup transformer or current lifting device; Stepup transformer or current lifting device output terminal are connected with the once end of standard mutual inductor and tested electronic mutual inductor; The secondary output terminal of standard mutual inductor is connected with the standard input end of electronic transducer calibration instrument; Tested electronic mutual inductor output is connected with merge cells; The digital signal output of merge cells is connected with the measured number signal input part of electronic transducer calibration instrument, and the standard input end of electronic transducer calibration instrument is connected with analogue collection module after standard signal converter A conversion, and measured number signal input part, analogue collection module and the communication module of electronic transducer calibration instrument all are connected with data processing module.
The school detecting method of the school check system of a kind of described electronic mutual inductor and merge cells, this school detecting method separates the school inspection to electronic mutual inductor and merge cells, respectively electronic mutual inductor and merge cells is carried out the school inspection,
Wherein, may further comprise the steps the school detecting method of the electronic mutual inductor of simulating signal output:
Step 1, stepup transformer or current lifting device are that standard mutual inductor and tested electronic mutual inductor provide the experiment source, and standard signal converter A and standard signal converter B carry out the analog quantity output of standard mutual inductor and tested mutual inductor to send into difference circuit after the conversion of signals respectively;
Step 2, analogue collection module are sampled to difference circuit output and standard mutual inductor output simultaneously, and sampled result is passed to data processing module;
Step 4, electronic mutual inductor school inspection appearance record also show school inspection result;
School detecting method to the electronic mutual inductor of digital signal output may further comprise the steps:
Step 1, stepup transformer or current lifting device are that standard mutual inductor and tested electronic mutual inductor provide the experiment source; The output of standard mutual inductor is sent into analogue collection module and is sampled after the standard signal converter A of electronic transducer calibration instrument conversion, the digital quantity output of tested mutual inductor is connected with data processing module behind communication module;
Step 2, analogue collection module are exported standard mutual inductor and are sampled, and sampled result is passed to data processing module;
Step 4, electronic mutual inductor school inspection appearance record also show school inspection result;
Be combined the school detecting method of unit, may further comprise the steps:
Step 1, electronic mutual inductor emulation module provide digital signal, simulating signal, conventional simulation signal and remote signals to tested merge cells;
Step 2, tested merge cells export data analysis unit to after with the signal combination that receives;
The signal sampling that step 3, standard merge cells emulation module send the electronic mutual inductor emulation module;
Step 4, standard merge cells emulation module obtain signal sampling and resample through the delay parameter of clock module according to tested merge cells, pass to monitoring means;
The data that step 5, monitoring means receive pass to data analysis unit through communication module;
The school detecting method of the combination school check system of a kind of described electronic mutual inductor and merge cells, this school detecting method carries out verification to electronic mutual inductor and merge cells as a whole, and it may further comprise the steps:
Step 1, stepup transformer or current lifting device are that standard mutual inductor and tested electronic mutual inductor provide the experiment source; The output of standard mutual inductor is sent into analogue collection module and is sampled after the standard signal converter A of electronic transducer calibration instrument conversion; Tested electronic mutual inductor output is connected with merge cells, and the digital signal output of merge cells is connected with data processing module behind the communication module of electronic transducer calibration instrument;
Step 2, analogue collection module to standard mutual inductor output sample, obtain normal data, and will sample to normal data pass to data processing module;
Step 4, electronic mutual inductor school inspection appearance record also show school inspection result.
The present invention has following positive effect: the school check system of electronic mutual inductor of the present invention and merge cells and method make existing whole school detecting method to electronic mutual inductor and merge cells school inspection respectively into; The specific aim as a result that detects of school is stronger like this; Error location is more accurate; Electronic mutual inductor can accurately be analyzed or merge cells is defective; So that change the parts go wrong, want problem identificatioin to go out after having solved the formula school inspection of whole school procuratorial organ in which link, can't realize the device interchangeability principle that intelligent grid proposes; If take place to change then can generally need electronic mutual inductor and merge cells together with changing, saved thus enterprise cost, alleviated the burden of enterprise; School of the present invention detecting method is simple to operate, operating personnel can accomplish school inspection work through simple training; School of the present invention check system also have can the verification electronic mutual inductor also can verification tradition mutual inductor, can the output of verification analog quantity also can the output of verification check digit amount, can independent verification electronic mutual inductor and merge cells again can be with they verifications as a whole, and advantage simple to operate.
Description of drawings
Fig. 1 is the school check system theory diagram that is directed against the electronic mutual inductor of simulating signal output of the present invention.
Fig. 2 is the school check system theory diagram that is directed against the electronic mutual inductor of digital signal output of the present invention.
Fig. 3 is the theory diagram of the school check system of merge cells of the present invention.
Fig. 4 is the theory diagram of the combination school check system of electronic mutual inductor of the present invention and merge cells.
Among the figure: 1; Electronic mutual inductor emulation module 2; Standard merge cells emulation module 3; Monitoring means 4; Clock module 5; Network communication module 6; Tested merge cells 7; Data analysis unit 8; Stepup transformer or current lifting device 9; Standard mutual inductor 10; Tested mutual inductor 11; Standard signal converter A 12; Standard signal converter B 13; Difference circuit 14; Analogue collection module 15; Data processing module 16; Communication module 17; Merge cells 18; Clock module 19 power adjustment casees; 20 electronic transducer calibration instruments 21; Merge cells school inspection appearance.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explanation:
Embodiment 1
As shown in Figure 1; A kind of school check system that is directed against the electronic mutual inductor of simulating signal output; Comprise standard mutual inductor 9, stepup transformer or current lifting device 8, power adjustment case 19 and electronic mutual inductor school inspection appearance 20; Described electronic mutual inductor school inspection appearance 20 comprises standard signal converter A11 and standard signal converter B12, difference circuit 13, analogue collection module 14, data processing module 15 and communication module 16; Described power adjustment case 19 is connected with stepup transformer or current lifting device 8; Stepup transformer or current lifting device 8 output terminals are connected with the once end of standard mutual inductor 9 and tested mutual inductor 10; The secondary output terminal of standard mutual inductor 9 is connected with the standard input end of electronic transducer calibration instrument 20, and the simulating signal output of tested mutual inductor 10 is connected with the tested input end of electronic transducer calibration instrument 20, and the standard input end of electronic transducer calibration instrument 20 and tested input end are connected to difference circuit 13 respectively behind standard signal converter A11 and standard signal converter B12; Analogue collection module 14 connects standard input end and difference circuit 13 output terminals simultaneously, and data processing module 15 is connected with analogue collection module 14 and communication module 16.
The school detecting method of the school check system of the electronic mutual inductor to simulating signal output of the present invention, this school detecting method carries out the inspection of independent school to the electronic mutual inductor of simulating signal output,
It may further comprise the steps:
Step 1, stepup transformer or current lifting device 8 are for standard mutual inductor 9 and tested mutual inductor 10 provide the experiment source, and standard signal converter A11 and standard signal converter B12 carry out the analog quantity output of standard mutual inductor 9 and tested mutual inductor 10 to send into difference circuit 13 after the conversion of signals respectively;
Step 2, analogue collection module 14 are sampled to difference circuit 13 outputs and standard mutual inductor 9 outputs simultaneously, and sampled result is passed to data processing module 15;
Step 4, electronic mutual inductor school inspection appearance 20 records also show school inspection result.
Embodiment 2
As shown in Figure 2; A kind of school check system of electronic mutual inductor; Comprise standard mutual inductor 9, stepup transformer or current lifting device 10, power adjustment case 19 and electronic mutual inductor school inspection appearance 20; Described electronic mutual inductor school inspection appearance 20 comprises standard signal converter A11, analogue collection module 14, data processing module 15 and communication module 16; Described power adjustment case 19 is connected with stepup transformer or current lifting device 8; Stepup transformer or current lifting device 8 output terminals are connected with the once end of standard mutual inductor 9 and tested mutual inductor 10; The secondary output terminal of standard mutual inductor 9 is connected with the standard input end of tester 20, and the digital signal output of tested mutual inductor 10 is connected with the measured number signal input part of the communication module 16 of electronic transducer calibration instrument 20, and the standard input end of electronic transducer calibration instrument 20 is connected with analogue collection module 14 after standard signal converter A11 conversion; The measured number signal input part is connected with communication module 16, and analogue collection module 14 and communication module 16 all are connected with data processing module 15.
The school detecting method of the school check system of the electronic mutual inductor to digital signal output of the present invention, this school detecting method carries out the inspection of independent school to the electronic mutual inductor of digital signal output, and it may further comprise the steps:
Step 1, stepup transformer or current lifting device 8 provide the experiment source for standard mutual inductor 9 and tested mutual inductor 10; The output of standard mutual inductor 9 is sent into analogue collection module 14 and is sampled after the standard signal converter A11 of electronic transducer calibration instrument 20 conversion, the digital quantity output of tested mutual inductor 10 is connected with data processing module 15 behind communication module 16;
Step 4, electronic mutual inductor school inspection appearance 20 records also show school inspection result.
As shown in Figure 3; A kind of school check system of merge cells; Comprise merge cells school inspection appearance 21, the data analysis unit 7 that links to each other with merge cells school inspection appearance 21; Inspection appearance 21 in described merge cells school comprises electronic mutual inductor emulation module 1, the standard merge cells emulation module 2 that links to each other with electronic mutual inductor emulation module 1, the clock module 4 that links to each other with standard merge cells emulation module 2, the monitoring means 3 that links to each other with clock module 4, the communication module 5 that links to each other with monitoring means 3, and communication module 5 links to each other with data analysis unit 7;
Electronic mutual inductor emulation module 1 provides standard digital signals, exchanges simulating signal, exchanges conventional simulation signal, remote signals and synchronizing signal to tested merge cells 6;
Export the communication module 5 of electronic transducer calibration instrument 21 after tested merge cells 6 makes up the standard signal that receives to, be forwarded to data analysis unit 7 by communication module 5 again;
The signal sampling that 2 pairs of electronic mutual inductor emulation modules 1 of standard merge cells emulation module send;
The signal sampling that standard merge cells emulation module 2 obtains resamples through the delay parameter of clock module 4 according to tested merge cells 6, passes to monitoring means 7;
The data that monitoring means 7 receives pass to data analysis unit 7 through communication module 5;
Data analysis unit 7 analysis receive from the signal of tested merge cells 6 and the signal of standard merge cells emulation module 2, draw and show the sum of errors school inspection result of tested merge cells 6.
The school detecting method of merge cells of the present invention school check system, this school detecting method carries out the inspection of independent school to merge cells,
Comprising following steps:
Step 1, electronic mutual inductor emulation module 1 provide digital signal, simulating signal, conventional simulation signal and remote signals according to demand to tested merge cells 6;
Step 2, tested merge cells 6 export communication module 5 to after with the signal combination that receives, and send into data analysis unit 7 then;
The signal sampling that step 3,2 pairs of electronic mutual inductor emulation modules 1 of standard merge cells emulation module send;
Step 4, standard merge cells emulation module 2 obtain signal sampling and resample through the delay parameter of clock module 4 according to tested merge cells 6, pass to monitoring means 3;
The data that step 5, monitoring means 3 receive pass to data analysis unit 7 through communication module 5;
Described electronic mutual inductor emulation module output digital signal, interchange simulating signal, interchange conventional simulation signal, remote signals and synchronizing signal.
Embodiment 4
As shown in Figure 4; The combination school check system of a kind of electronic mutual inductor and merge cells; Comprise standard mutual inductor 9, stepup transformer or current lifting device 8, power adjustment case 19 and electronic mutual inductor school inspection appearance 20; Described electronic mutual inductor school inspection appearance 20 comprises standard signal converter A11, analogue collection module 14, data processing module 15 and communication module 16; Described power adjustment case 19 is connected with stepup transformer or current lifting device 8; Stepup transformer or current lifting device 8 output terminals are connected with the once end of standard mutual inductor 9 and tested mutual inductor 10; The secondary output terminal of standard mutual inductor 9 is connected with the standard input end of electronic mutual inductor school inspection appearance 20, and tested mutual inductor 10 outputs are connected with merge cells 17, and the digital signal output of merge cells 17 is connected with the measured number signal input part of electronic mutual inductor school inspection appearance 20; The standard input end of electronic mutual inductor school inspection appearance 20 is connected with analogue collection module 14 after standard signal converter A11 conversion, and measured number signal input part, analogue collection module 14 and the communication module 16 of electronic mutual inductor school inspection appearance 20 all are connected with data processing module 15.
The school detecting method of the whole school of electronic mutual inductor of the present invention and merge cells check system, this school detecting method carries out the school inspection to the integral body of electronic mutual inductor and merge cells formation,
It may further comprise the steps:
Step 1, stepup transformer or current lifting device 8 provide the experiment source for standard mutual inductor 9 and tested mutual inductor 10; The output of standard mutual inductor 9 is sent into analogue collection module 14 and is sampled after the standard signal converter A11 of tester 20 conversion; Tested mutual inductor 10 outputs are connected with merge cells 17; The digital signal output of merge cells 17 is connected with the communication module 16 of electronic transducer calibration instrument 20, sends into data processing module 15 then;
Step 4, electronic mutual inductor school inspection appearance 20 records also show school inspection result.
The school check system of electronic mutual inductor of the present invention and merge cells and method make existing whole school check system and method to electronic mutual inductor and merge cells school inspection respectively into; The specific aim as a result that detects of school is stronger like this; Can accurately analyze the error of electronic mutual inductor or the error of merge cells; So that change the parts that go wrong; Want integral replacing electronic mutual inductor and merge cells unit's problem after having solved the inspection of traditional check system school, school, saved enterprise cost, alleviated the burden of enterprise; School of the present invention check system can the verification electronic current mutual inductor, again can the verification electronic type voltage transformer; Can the verification analog quantity export, can the check digit amount export again; Simultaneously also support whole verification, and simple to operate advantage arranged electronic mutual inductor and merge cells.
Claims (8)
1. school check system to the electronic mutual inductor of simulating signal output; Comprise standard mutual inductor, stepup transformer or current lifting device, power adjustment case and electronic mutual inductor school inspection appearance; It is characterized in that: described electronic mutual inductor school inspection appearance comprises standard signal converter A and standard signal converter B, difference circuit, analogue collection module, data processing module and communication module; Described power adjustment case is connected with stepup transformer or current lifting device; Stepup transformer or current lifting device output terminal are connected with the once end of standard mutual inductor and tested electronic mutual inductor; The secondary output terminal of standard mutual inductor is connected with the standard input end of electronic transducer calibration instrument; The simulating signal output of tested mutual inductor is connected with the tested input end of electronic transducer calibration instrument; The standard input end of electronic transducer calibration instrument and tested input end are connected to difference circuit respectively behind standard signal converter A and standard signal converter B, analogue collection module connects standard input end and difference circuit output terminal simultaneously, and data processing module is connected with analogue collection module and communication module.
2. school check system to the electronic mutual inductor of digital signal output; Comprise standard mutual inductor, stepup transformer or current lifting device, power adjustment case and electronic mutual inductor school inspection appearance; It is characterized in that: described electronic mutual inductor school inspection appearance comprises standard signal converter A, analogue collection module, data processing module and communication module; Described power adjustment case is connected with stepup transformer or current lifting device; Stepup transformer or current lifting device output terminal are connected with the once end of standard mutual inductor and tested electronic mutual inductor; The secondary output terminal of standard mutual inductor is connected with the standard input end of electronic transducer calibration instrument, and the digital signal output of tested mutual inductor is connected with the measured number signal input part of electronic transducer calibration instrument, and the standard input end of electronic transducer calibration instrument is connected with analogue collection module after standard signal converter A conversion; The measured number signal input part is connected with communication module, and analogue collection module and communication module all are connected with data processing module.
3. school check system or the described school check system that is directed against the electronic mutual inductor of digital signal output of claim 2 that is directed against the electronic mutual inductor of simulating signal output according to claim 1; It is characterized in that: described check system is only measured to checking electronic type transformers, does not comprise merge cells.
4. the school check system of a merge cells; Comprise merge cells school inspection appearance, the data analysis unit that links to each other with merge cells school inspection appearance; It is characterized in that: inspection appearance in described merge cells school comprises the electronic mutual inductor emulation module, the standard merge cells emulation module that links to each other with the electronic mutual inductor emulation module, the clock module that links to each other with standard merge cells emulation module, the monitoring means that links to each other with clock module, the communication module that links to each other with monitoring means, and communication module links to each other with data analysis unit;
The electronic mutual inductor emulation module provides standard digital signals, exchanges simulating signal, exchanges conventional simulation signal, remote signals and synchronizing signal to tested merge cells;
Tested merge cells exports data analysis unit to after the standard signal that receives is made up;
The signal sampling that standard merge cells emulation module sends the electronic mutual inductor emulation module;
The signal sampling that standard merge cells emulation module obtains resamples through the delay parameter of clock module according to tested merge cells, passes to monitoring means;
The data that monitoring means receives pass to data analysis unit through communication module;
The data analysis unit analysis receive from the signal of tested merge cells and the signal of communication module, draw and show the sum of errors school inspection result of tested merge cells.
5. the school check system of merge cells according to claim 4 is characterized in that: described electronic mutual inductor emulation module output digital signal, interchange simulating signal, interchange conventional simulation signal, remote signals and synchronizing signal.
6. the combination school check system of electronic mutual inductor and merge cells; Comprise standard mutual inductor, stepup transformer or current lifting device, power adjustment case and electronic mutual inductor school inspection appearance; It is characterized in that: described electronic mutual inductor school inspection appearance comprises standard signal converter A, analogue collection module, data processing module and communication module; Described power adjustment case is connected with stepup transformer or current lifting device; Stepup transformer or current lifting device output terminal are connected with the once end of standard mutual inductor and tested electronic mutual inductor; The secondary output terminal of standard mutual inductor is connected with the standard input end of electronic transducer calibration instrument; Tested electronic mutual inductor output is connected with merge cells; The digital signal output of merge cells is connected with the measured number signal input part of electronic transducer calibration instrument, and the standard input end of electronic transducer calibration instrument is connected with analogue collection module after standard signal converter A conversion, and measured number signal input part, analogue collection module and the communication module of electronic transducer calibration instrument all are connected with data processing module.
7. school detecting method like the school check system of claim 1 or 2 or 4 described electronic mutual inductors and merge cells; It is characterized in that: this school detecting method separates the school inspection to electronic mutual inductor and merge cells; Respectively electronic mutual inductor and merge cells are carried out the school inspection
Wherein, may further comprise the steps the school detecting method of the electronic mutual inductor of simulating signal output:
Step 1, stepup transformer or current lifting device are that standard mutual inductor and tested electronic mutual inductor provide the experiment source, and standard signal converter A and standard signal converter B carry out the analog quantity output of standard mutual inductor and tested mutual inductor to send into difference circuit after the conversion of signals respectively;
Step 2, analogue collection module are sampled to difference circuit output and standard mutual inductor output simultaneously, and sampled result is passed to data processing module;
Step 3, data processing module carry out analytical calculation with normal data in the step 2 and difference data, obtain the error of tested electronic mutual inductor;
Step 4, electronic mutual inductor school inspection appearance record also show school inspection result;
School detecting method to the electronic mutual inductor of digital signal output may further comprise the steps:
Step 1, stepup transformer or current lifting device are that standard mutual inductor and tested electronic mutual inductor provide the experiment source; The output of standard mutual inductor is sent into analogue collection module and is sampled after the standard signal converter A of electronic transducer calibration instrument conversion, the digital quantity output of tested mutual inductor is connected with data processing module behind communication module;
Step 2, analogue collection module are exported standard mutual inductor and are sampled, and sampled result is passed to data processing module;
Step 3, data processing module carry out analytical calculation with normal data in the step 2 and the measured data in the step 1, obtain the error of tested electronic mutual inductor;
Step 4, electronic mutual inductor school inspection appearance record also show school inspection result;
Be combined the school detecting method of unit, may further comprise the steps:
Step 1, electronic mutual inductor emulation module provide digital signal, simulating signal, conventional simulation signal and remote signals to tested merge cells;
Step 2, tested merge cells export data analysis unit to after with the signal combination that receives;
The signal sampling that step 3, standard merge cells emulation module send the electronic mutual inductor emulation module;
Step 4, standard merge cells emulation module obtain signal sampling and resample through the delay parameter of clock module according to tested merge cells, pass to monitoring means;
The data that step 5, monitoring means receive pass to data analysis unit through communication module;
Step 6, data analysis unit analysis receive from the signal of tested merge cells and the signal of communication module, draw the error of tested merge cells, and on merge cells school inspection appearance, show school inspection result.
8. the school detecting method of the combination school check system of electronic mutual inductor as claimed in claim 6 and merge cells, it is characterized in that: this school detecting method carries out verification to electronic mutual inductor and merge cells as a whole, and it may further comprise the steps:
Step 1, stepup transformer or current lifting device are that standard mutual inductor and tested electronic mutual inductor provide the experiment source; The output of standard mutual inductor is sent into analogue collection module and is sampled after the standard signal converter A of electronic transducer calibration instrument conversion; Tested electronic mutual inductor output is connected with merge cells, and the digital signal output of merge cells is connected with data processing module behind the communication module of electronic transducer calibration instrument;
Step 2, analogue collection module to standard mutual inductor output sample, obtain normal data, and will sample to normal data pass to data processing module;
Step 3, data processing module carry out analytical calculation with normal data in the step 2 and the measured data in the step 1, obtain the global error of tested electronic mutual inductor and merge cells;
Step 4, electronic mutual inductor school inspection appearance record also show school inspection result.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103076515A (en) * | 2012-12-28 | 2013-05-01 | 中国电力科学研究院 | Merging unit integral detection and evaluation system |
| CN103135013A (en) * | 2012-12-28 | 2013-06-05 | 辽宁省电力有限公司 | Detecting and evaluating system of data acquisition unit |
| CN103472431A (en) * | 2013-09-11 | 2013-12-25 | 国家电网公司 | Etalon of electronic current mutual inductor and verifying structures of electronic current mutual inductor |
| CN103558474A (en) * | 2013-11-08 | 2014-02-05 | 国家电网公司 | Novel merging unit verifying device |
| CN103558571A (en) * | 2013-11-08 | 2014-02-05 | 国家电网公司 | Calibration system of electronic transformer and merging unit |
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