CN103018697B - A kind of Multifunctional multi-epitope voltage monitor calibrator - Google Patents
A kind of Multifunctional multi-epitope voltage monitor calibrator Download PDFInfo
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- CN103018697B CN103018697B CN201110290153.0A CN201110290153A CN103018697B CN 103018697 B CN103018697 B CN 103018697B CN 201110290153 A CN201110290153 A CN 201110290153A CN 103018697 B CN103018697 B CN 103018697B
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Abstract
The present invention has disclosed a kind of Multifunctional multi-epitope voltage monitor calibrator, be used for testing several voltage monitoring instruments, its composition comprises: main frame, several Error Calculator, standard source, power consumption switching and the test module that are connected with main frame, the bus network for being connected the hub between main frame and voltage monitoring instrument and Error Calculator, standard source, power consumption switching and test module being connected with main frame. Adopt the present invention, can carry out automatic all events verification to many voltage monitoring instruments simultaneously, improve verification efficiency, can carry out multiple test to every voltage monitoring instrument many kinds of parameters.
Description
Technical field
The present invention relates to a kind of Multifunctional multi-epitope voltage monitor calibrator.
Background technology
In order to ensure the power supply reliability of electrical network, further promote the reliable power quality of high-quality and safety, stateFamily was since the emphasis using rate of qualified voltage and the quality of power supply as work about electric power in 2009; In all parts of the countryThe also important indicator using rate of qualified voltage as feedback on performance very early of electric company. 2009 years are national eachThe electric network synthetic rate of qualified voltage of economizing is all more than 95%, and the regional voltage that voltage monitoring instrument mounting points is many closesLattice rate all reaches more than 99%. So each area is all at the installation voltage monitoring instrument of increasing input, state's domestic discipline and family rulesThe re-testing periods of determining voltage monitoring instrument are 1 years/time, important monitoring point, 1～3 year/time, general monitoring point, inspectionThe project of surveying not only will detect voltage elementary error, also needs detection sensitivity, the clock degree of accuracy, statisticsError function and load, and the detection that proposes especially clock is as an emphasis, and these projects are by passingSystem method detection difficulty is high, and the time is long; A voltage monitoring instrument clock detection just needs by clock method of comparisonTake 3 day time, detect and brought very large workload to voltage monitoring instrument, making to detect becomes electric power workA difficult problem of doing.
Existing many calibrating installations can only detect error, as the patent No. electricity that is 201020013223.9Press monitoring instrument intelligent detecting platform, it comprises calibrating panel, main frame and standard source, and some calibrating panels are logicalCross circuit and be connected with some voltage monitoring instruments and a main frame respectively, main frame connects by circuit and standard sourceConnect. The present invention provides specification signal by calibrating software control standard source to detecting platform, then reads eachThe measurement result data of calibration equipment, and desired value or calculated value comparison, obtain uncertainty of measurement, canRealize the calibrating of the Voltage detector to different manufacturers, different model, and automatically generate each voltage monitoring instrumentDegree of accuracy probation redport.
In prior art scheme, tested table is to hang on same group of holding wire and order wire, cannot complete voltageThe clock calibrating of monitor, power consumption test, power failure test function etc.
Voltage monitoring instrument quantity of installing in all parts of the country exceedes 100,000, the data of these voltage monitoring instrumentsBeing the foundation that quality of voltage is administered in each area, is the key technical indexes of each electric company's achievement, straightConnect the direct benefit that concerns each electric company, also concern each user's vital interests, so numberUnquestionable according to accurate and reliable importance, and the accuracy of guarantee data and reliable howProperty, be also the emphasis of paying close attention in recent years.
Summary of the invention
Technical problem to be solved by this invention is: the verification of a kind of global function multi-epitope voltage monitoring instrument is providedDevice.
The technical solution adopted in the present invention is: a kind of Multifunctional multi-epitope voltage monitor calibrator,Be used for testing several voltage monitoring instruments, it comprises: main frame, several errors that are connected with main frame are calculatedDevice, standard source, power consumption switching and test module, for connecting the line concentration between main frame and voltage monitoring instrumentDevice and the bus network that Error Calculator, standard source, power consumption switching and test module are connected with main frameNetwork.
On the basis of technique scheme, further comprise attached technical scheme:
Preferably, described standard source is table source one, and its output is switched by power consumption and test module connectsBe connected to each voltage monitoring instrument, each voltage monitoring instrument connects with corresponding Error Calculator.
Preferably, described hub adopts RS232 or RS485 or RS422 or ethernet network.
Preferably, described bus network adopts RS232 or RS485 or RS422 or Ethernet netNetwork.
Preferably, the warning of described voltage monitoring instrument or output of pulse signal are to Error Calculator, and voltageThe clock signal of monitor is exported to hub.
Preferably, described main frame is exported according to the test point control criterion source arranging, and reads voltage monitoringThe data of instrument, draw elementary error after both.
Preferably, described voltage monitoring instrument output alarm signal is to Error Calculator, and Error Calculator is sentencedWhether determine voltage monitoring instrument and report to the police, described main frame is the data of reading error calculator again, calculate set error.
Preferably, described Error Calculator is accepted the pps pulse per second signal of voltage monitoring instrument, and Error Calculator is logicalCross certain hour statistics, calculate a day error, then extrapolate a year error, described main frame is reading error meter againThe data of calculating device, calculate clocking error.
Advantage of the present invention: many voltage monitoring instruments are carried out to automatic all events verification simultaneously, improve verificationEfficiency, can test verification to every voltage monitoring instrument many kinds of parameters, increases clock calibrating, adjusts by mistakePoor calibrating, statistical function calibrating, power consumption test, power failure test function.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is inner structure chart of visiting testing fixture of the present invention.
Detailed description of the invention
As shown in Figure 1, the invention provides the concrete of a kind of Multifunctional multi-epitope voltage monitor calibratorEmbodiment, this Multifunctional multi-epitope voltage monitor calibrator 1 is for testing several voltage monitoring instruments2, it comprises: main frame 10, several Error Calculator 12 that are connected with main frame 10, standard source 14,Power consumption switches and test module 16, for connect hub 18 between main frame 10 and voltage monitoring instrument 2,And Error Calculator 12, standard source 14, power consumption switching and test module 16 are connected with main frame 10Bus network. Wherein standard source 14 is exported by power consumption and is switched and test module 16 is connected to each voltageMonitor 2, each voltage monitoring instrument 2 connects to corresponding Error Calculator 12. This global function multilistPosition voltage monitoring instrument calibration equipment 1 further comprises independently accessory power supply, can export 57V, 100V,220V, 380V voltage, convenient and safe.
The commercial computer that main frame 10 is standard, stable performance, expansion mouthful is enriched, and has software control flatPlatform.
Error Calculator 12, what its idle condition showed is table item, shows this table while doing elementary errorThe voltage elementary error of position, what when clock detection, show is the pulse per second (PPS) mistake of the voltage monitoring instrument of this epi-positionPoor, to adjust and show while detection whether alarm condition. When warning, demonstration-ERR-represents to report to the police. EachEpi-position has the epi-position of a pocket watch position and a standing groove table.
Standard source 14 is table source one, and precision is 5/10000ths, voltage gear be 57V, 100V, 220V,380V is totally 4 gears, and power output is 100VA. The output of standard source 14 is soft by main frame 10Part control platform control and without manual setting.
Power consumption is switched and test module 16, and its each epi-position can work alone, and tests and disappears with rotationConsumption load.
Hub 18 adopts RS232 communication network to complete the communication of standard serial port one-to-many, for collectingThe signal of each voltage monitoring instrument 2.
By the composition of said elements, corresponding function of the present invention is specific as follows:
1, calibra tion: the software control platform in main frame 10 is by RS485 network control markAccurate source 14, exports according to the test point control criterion source 14 arranging, after stable output, and software controlPlatform reads the data of voltage monitoring instrument 2 in accordance with agreement by RS232 communication network, both obtain more afterwardsGo out error.
2, set error calibrating: in main frame 10, software control platform is by RS485 network control standardAn initial value is exported in source 14, voltage monitoring instrument 2 by online signaling interface output alarm signal to errorCalculator 12, Error Calculator 12 judges whether voltage monitoring instrument 2 reports to the police, and software control platform is read againGet the data of Error Calculator 12, calculate adjust elementary error and sensitivity.
3, clock calibrating: the online signaling interface of Error Calculator 12 is connected with voltage monitoring instrument 2, connectsBe subject to the pps pulse per second signal (1HZ or 4HZ dutycycle 50% square wave) of voltage monitoring instrument 2, error is calculatedDevice 12 is added up by certain hour, calculates a day error, is extrapolating a year error, software control platformThe error of reading error calculator 12 again.
4, statistical error calibrating, first software control platform reads voltage prison by RS232 communication networkSurvey time of instrument 2, then clock write-back to realize many voltage monitoring instruments synchronous second, in the output of control criterion sourceThe magnitude of voltage of the certain hour in limit, lower limit, acceptability limit, standard source calculates the upper limit, lower limit, qualifiedStatistics rate deliver to software control platform, software control platform read voltage monitoring instrument statistics the upper limit, underLimit, qualification rate, both relatively draw error.
5, power consumption test: the control of software control platform and test module 16 switch epi-position output, standard sourceBuilt-in test transformer is measured the electric current that current epi-position consumes, and delivers to software control platform, software controlPlatform calculates the load that current epi-position consumes.
6, power failure test function: the control of software control platform, according to the control parameter pre-setting, is openedThe work of moving source had a power failure several minutes after several minutes, again started source, and software control platform reads voltage monitoring instrument2 statistics, draws integrality and the reliability of voltage monitoring instrument 2 statistical functions after continuous several times.
7, communication function test: mainly test the parameters in communication protocol, real-time voltage data,Statistics and time. The parameters of voltage monitoring instrument 2 generally comprises, meter number, address,The upper lower limit value of baud rate, producer's information, specified range, setting, just can be certainly after acquisition parametersMove and voltage monitoring instrument 2 communication connections, and obtain the data such as real time data, statistics, instrument time,Can complete voltage elementary error, statistical function test.
In the present embodiment, RS232 communication network also can change RS485, RS422, Ethernet etc. intoNetwork, and RS485 communication network also can change the networks such as RS232, RS422, Ethernet into.
Certainly above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow familiarThe people of technique can understand content of the present invention and implement according to this, can not limit with this of the present inventionProtection domain. All equivalent transformation or modification that according to the present invention, the Spirit Essence of main technical schemes does,Within all should being encompassed in protection scope of the present invention.
Claims (6)
1. a Multifunctional multi-epitope voltage monitor calibrator, for testing multiple voltage monitoring instruments (2), is characterized in that its bagDraw together: main frame (10), the multiple Error Calculator (12) that are connected with main frame (10), standard source (14), power consumption are switched and test module(16), for connecting hub (18) between main frame (10) and voltage monitoring instrument (2) and by Error Calculator (12), markAccurate source (14), the bus network that power consumption is switched and test module (16) is connected with main frame (10), described standard source (14) is table source oneBody, and its output is switched by power consumption and test module (16) is connected to each voltage monitoring instrument (2), and each voltage monitoring instrument (2) isConnect with corresponding Error Calculator (12), the warning of described voltage monitoring instrument (2) or output of pulse signal are to Error Calculator(12), the clock signal of voltage monitoring instrument (2) is exported to hub (18), and wherein power consumption switching and test module (16) makeEach epi-position can work independently, and with rotation test and depletion load, and in the time of power consumption test, the software control of main frame (10) is flatPlatform control power consumption is switched and test module (16) switches epi-position output, and the built-in test transformer of standard source is measured current epi-position and disappearedThe electric current of consumption, delivers to software control platform, and software control platform calculates the load that current epi-position consumes.
2. a kind of Multifunctional multi-epitope voltage monitor calibrator according to claim 1, is characterized in that: described hub(18) adopt RS232 or RS485 or RS422 or ethernet network.
3. a kind of Multifunctional multi-epitope voltage monitor calibrator according to claim 2, is characterized in that: described bus networkNetwork adopts RS232 or RS485 or RS422 or ethernet network.
4. a kind of Multifunctional multi-epitope voltage monitor calibrator according to claim 1, is characterized in that: described main frame (10)According to test point control criterion source (14) output arranging, and read the data of voltage monitoring instrument (2), after both, draw baseThis error.
5. a kind of Multifunctional multi-epitope voltage monitor calibrator according to claim 1, is characterized in that: described voltage prisonSurvey instrument (2) output alarm signal to Error Calculator (12), and Error Calculator (12) judges whether voltage monitoring instrument (2) reports to the police,Described main frame (10) is the data of reading error calculator (12) again, calculate set error.
6. a kind of Multifunctional multi-epitope voltage monitor calibrator according to claim 1, is characterized in that: described error meterCalculate device (12) and accept the pps pulse per second signal of voltage monitoring instrument (2), Error Calculator (12) is added up by certain hour, calculates skyError, then extrapolate a year error, described main frame (10) is the data of reading error calculator (12) again, calculate clocking error.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103760511A (en) * | 2014-01-26 | 2014-04-30 | 国家电网公司 | Full-automatic test system for multiple voltage monitors |
| CN104198797A (en) * | 2014-08-26 | 2014-12-10 | 广东电网公司电力科学研究院 | Voltage detection method, system and device |
| CN104749550B (en) * | 2015-04-21 | 2018-01-26 | 国家电网公司 | A kind of asynchronous calibrating installation of single-phase multi-epitope and its calibration method |
| CN112505606B (en) * | 2020-12-16 | 2022-04-12 | 广东电网有限责任公司清远供电局 | Calibration device and calibration method for setting values of multiple voltage monitors |
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| SU636566A1 (en) * | 1973-07-19 | 1978-12-05 | Киевский Ордена Ленина Политехнический Институт Им.50-Летия Великой Октябрьской Социалистичеуокй Революции | Method of measuring voltmeter error |
| CN201152893Y (en) * | 2007-12-21 | 2008-11-19 | 浙江省电力试验研究院 | Program checking apparatus for voltage monitoring instrument |
| CN201199265Y (en) * | 2008-05-19 | 2009-02-25 | 台州电业局 | Full-automatic calibrating apparatus for voltage monitoring instrument |
| CN201600444U (en) * | 2010-01-04 | 2010-10-06 | 山东电力研究院 | Voltage monitor intelligent verification platform |
| CN102087352A (en) * | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Three-phase intelligent watt-hour meter inspection device and method |
| CN202256647U (en) * | 2011-09-28 | 2012-05-30 | 南京丹迪克科技开发有限公司 | Multifunctional multi-epitope voltage monitor calibrator |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| SU636566A1 (en) * | 1973-07-19 | 1978-12-05 | Киевский Ордена Ленина Политехнический Институт Им.50-Летия Великой Октябрьской Социалистичеуокй Революции | Method of measuring voltmeter error |
| CN201152893Y (en) * | 2007-12-21 | 2008-11-19 | 浙江省电力试验研究院 | Program checking apparatus for voltage monitoring instrument |
| CN201199265Y (en) * | 2008-05-19 | 2009-02-25 | 台州电业局 | Full-automatic calibrating apparatus for voltage monitoring instrument |
| CN201600444U (en) * | 2010-01-04 | 2010-10-06 | 山东电力研究院 | Voltage monitor intelligent verification platform |
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