CN201378204Y - Automatic detecting and metrological characteristic analyzing device for energy meter standard devices - Google Patents

Automatic detecting and metrological characteristic analyzing device for energy meter standard devices Download PDF

Info

Publication number
CN201378204Y
CN201378204Y CN200920037790U CN200920037790U CN201378204Y CN 201378204 Y CN201378204 Y CN 201378204Y CN 200920037790 U CN200920037790 U CN 200920037790U CN 200920037790 U CN200920037790 U CN 200920037790U CN 201378204 Y CN201378204 Y CN 201378204Y
Authority
CN
China
Prior art keywords
energy meter
electric energy
meter
standard set
standard
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 - Lifetime
Application number
CN200920037790U
Other languages
Chinese (zh)
Inventor
孙健
王忠东
徐晴
李建红
李军
卢树峰
柏永林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
Original Assignee
Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd filed Critical Electric Power Research Institute of State Grid Jiangsu Electric Power Co Ltd
Priority to CN200920037790U priority Critical patent/CN201378204Y/en
Application granted granted Critical
Publication of CN201378204Y publication Critical patent/CN201378204Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Testing Relating To Insulation (AREA)

Abstract

The utility model discloses an automatic detecting and metrological characteristic analyzing device for energy meter standard devices, which comprises a referential detecting standard device taken as a detecting metrological standard device. The device is characterized in that an automatic detecting and metrological characteristic analyzing system for energy meter standard devices is further included, wherein the automatic detecting and metrological characteristic analyzing system for energy meter standard devices is communicated with the energy meter standard device to be tested and the referential detecting standard device through communication cables; and the automatic detecting and metrological characteristic analyzing system for energy meter standard devices comprises a control computer and communication cables connecting the control computer with the device to be tested and the referential detecting standard device. The utility model has the advantages of rapid verification and detection experiments, high data-processing efficiency, accurate detecting and testing methods, simple wiring, easy use, convenient data statistics and analysis, and higher work efficiency and quality of on-site metrological verification/testing as well as metrological characteristic analysis.

Description

The electric energy meter standard set-up detects and the meter characteristic analytical equipment automatically
Technical field
The utility model relates to a kind of electric energy meter standard set-up and detects and the meter characteristic analytical equipment automatically, belongs to the automatic detection and the specificity analysis technical field of electric system electrical measuring device.
Background technology
Newly purchase and need satisfy the requirement of JJG597-2005 " AC electrical energy meter calibration rules " at the AC energy meter standard set-up of usefulness, the JJG597-2005 " AC electrical energy meter calibration rules " of new promulgation has higher requirement to the calibrating first and the periodic calibration of electric energy meter standard set-up, but in the actual detected process all is that testing person's manual operation is finished, data recording, it also is to be undertaken by personnel's typing and calculating that processing and report are provided, so the record data amount is big, calculate loaded down with trivial details and can not guarantee the ageing and accuracy of calibration operation, part test testing person even can't finish on request exactly presses for development one covering device and finishes this task.On the other hand to finishing metering performance index analysis and control according to the requirement of the JJF1033-2008 " measurement standard examination standard " of new promulgation and JJF1069-2007 " legal metering validation activity examination standard " to tested electric energy meter standard set-up at the electric energy meter standard set-up of the process measurement standard of usefulness examination, and finally finish the result and judge, provide work such as meter characteristic analytic record and report, manual testing and to write down related data scrappy, the association of data, statistics and analysis is handled by manually finishing, analyze and handle more difficult standard, inefficiency, be difficult to reach the purpose of meter characteristic analysis and control, also press for a covering device and finish automatic detection and tasks such as shared association of test figure and analyzing and processing, thereby reach the purpose of meter characteristic analysis and control.
The utility model content
Technical problem to be solved in the utility model provides a kind of requirement based on JJG 597-2005 " AC electrical energy meter calibration rules ", can detect the AC energy meter standard set-up automatically, and finishes the device that meter characteristic is analyzed according to the requirement of JJF1033-2008 " measurement standard examination standard " and JJF1069-2007 " legal metering validation activity examination standard ".
For solving the problems of the technologies described above, the utility model provides a kind of electric energy meter standard set-up to detect and the meter characteristic analytical equipment automatically, comprise as the reference examination criteria device that detects Metrological Standard Equipment, it is characterized in that: comprise that also the electric energy meter standard set-up detects and the meter characteristic analytic system automatically, described electric energy meter standard set-up automatic Verification is communicated by letter by connection with tested electric energy meter standard set-up and with reference to the examination criteria device with the meter characteristic analytic system, described electric energy meter standard set-up detects with the meter characteristic analytic system automatically and comprises control computer, be used for control computer with by checking device and the connection that is connected with reference to the examination criteria device, described control computer comprises automatic checkout system and meter characteristic analytic system, and described automatic checkout system comprises:
1) the multiple AC energy meter standard set-up of control carries out parameters such as lifting voltage, electric current, phase place, frequency, read detected electric energy meter standard set-up simultaneously and with reference to the information such as voltage, electric current and electric energy of examination criteria device, and above two kinds of information are compared, thereby realize the automatic detection module of automatic measuring ability;
2) data of manual entry are preserved manual data entry module with analysis and judgement;
Described automatic checkout system also comprises according to the calibrating project carries out data processing with the test findings data by the requirement of relevant rules or standard, and judge automatically whether the calibrating project is qualified, simultaneously can also carry out analyzing and processing and judge whether Characteristics Control meets the demands, and finally finish the data processing reporting modules of the work of providing of record and report related data;
Described meter characteristic analytic system comprises and can carry out the meter characteristic analytical test by the requirement of JJF1033-2008 " measurement standard examination standard " and JJF1069-2007 " legal metering validation activity examination standard " automatically, and will detect data storage in the meter characteristic analysis, thereby analyze the meter characteristic analysis module of the meter characteristic state of device.
The beneficial effect that the utility model reached:
The utility model detects with the meter characteristic analytic system automatically by the electric energy meter standard set-up and has changed traditional Measuring and testing of operating manually and writing down and specificity analysis test method, calibrating and testing experiment speed is fast, data-handling efficiency is high, detection and test method is accurate, wiring is simply easy to use, be convenient to data statistics and analyzing and processing has improved the work efficiency and the work quality of on-site proving and meter characteristic analysis.
Description of drawings
Fig. 1 is that the utility model electric energy meter standard set-up detects and meter characteristic analytical equipment basic structure synoptic diagram automatically;
Fig. 2 is that electric energy meter standard set-up of the present utility model detects and meter characteristic Analytical System Design process flow diagram automatically;
Fig. 3 is that electric energy meter standard set-up of the present utility model detects and meter characteristic analytic system functional module framework figure automatically;
Fig. 4 is that electric energy meter standard set-up of the present utility model detects and meter characteristic analytic system workflow diagram automatically.
Embodiment
Below in conjunction with accompanying drawing automatic the detection with the meter characteristic analytical equipment of electric energy meter standard set-up of the present utility model is further described.
The function that described automatic detection module can be realized is: control multiple AC energy meter standard set-up and carry out parameters such as lifting voltage, electric current, phase place, frequency, read detected electric energy meter standard set-up simultaneously and compare with reference to the information such as voltage, electric current and electric energy of examination criteria device.
To receive by on arbitrary epi-position of checking device with reference to examination criteria during detection, by will be by RS232 serial ports or other switching communication port by checking device, be connected in the computing machine with reference to examination criteria, come real-time control apparatus by computing machine, thereby and read tested device respectively and finish various test items with reference to the real-time information of examination criteria device.Attainable automatic test item comprises: determine the supervisory instrument error, determine range of adjustment, determine to regulate fineness, determine to influence each other, determine phase sequence, determine symmetry, determine power stability, determine fundamental error, determine device measuring repeatability, determine multichannel output consistance, determine load effect, determine the alternating magnetic field influence, determine the short-term stability variation, determine variation in the calibration interval.
Described manual data entry module can realize the data of manual entry are preserved and analysis and judgement, calls when providing record and report.In the actual detected process, the part test item can not be operated by other normative reference of computer control, then test needs manually-operated, the testing result data need manually be carried out typing, and these projects comprise: macroscopic examination, determine insulation resistance, power frequency withstand test, energising inspection, device magnetic field, determine waveform distortion, determine potential difference (PD) between terminal of the same name.
The attainable function of described meter characteristic analysis module is: carry out the meter characteristic analytical test by the requirement of JJF1033-2008 " measurement standard examination standard " and JJF1069-2007 " legal metering validation activity examination standard " automatically, and will detect data storage in the meter characteristic analysis, thereby analyze the meter characteristic state of device.The project of the meter characteristic analytical test in the native system comprises: the control chart of stability assessment, replica test, measuring uncertainty evaluation, uncertainty of measurement checking, comparison, Intermediate Checks and measuring process.
The attainable function of described data processing reporting modules is: carry out data processing with the test findings data by the requirement of relevant rules or standard according to test item, and judge automatically whether test item is qualified, simultaneously can also carry out analyzing and processing and judge whether metering performance meets the demands, and finally finish the work of providing of record and report related data.
Described is electric energy meter standard set-up tester with reference to the examination criteria device.
The electric energy meter standard set-up detects automatically with the meter characteristic analytical equipment to be possessed multiple electric energy meter standard set-up communication function, thereby realizes the calibrating to multiple electric energy meter standard set-up; Simultaneously multiplely carry out calibration operation with reference to the examination criteria device in order to realize to adopt, this device also has and other multiple function of carrying out communication with reference to the examination criteria device, and mainly comprise: the German EMH k2006 of company type electric energy meter standard set-up tester, the U.S. RD31/33 of RADIAN company type are with reference to electric energy detection standard and the CL317 of land electronics corporation of Shenzhen section type electric energy meter standard set-up tester.Zhuan Zhi software systems are according to modular design in addition, can be automatically finish the access of the test of other different electric energy meter standard set-ups and other difference with reference to the examination criteria device by increasing other communication protocol, can come just passable by increasing communication protocol when changing when reference Measuring and testing standard with by checking device, and do not need modifier software system structure and method of testing, have very strong extendibility.
Described control computer be reserved with can finish data upload and with the data-interface of other system, equipment seamless link, improve the ability of utilizing that detects data.
The supporting metrological standard unit of other of the utility model device comprises Insulation Resistance Tester, Hi-pot Tester, magnetic field tester, high-grade digital voltmeter, in the distortion meter one or more, and be connected with meter characteristic analytic system, tested device with electric energy meter standard set-up automatic Verification or communicate by letter, itself and cooperate with reference to the examination criteria device and to finish the measurement verification task, other metrology and measurement task that can't finish with reference to the examination criteria device is provided.Because supporting metrological standard unit does not generally have communication interface, can not control with automaticdata and read, can consider to adopt the manual operation test, the mode of manual entry data is carried out.
Below narrated the technical advance of this device in automatic test item and meter characteristic analytical test:
(1) determines power stability
Can finish stable measurement automatically, and can diagnose the stable unusual reason that causes, thereby determine because the device stability shakiness which kind of parameter in voltage, electric current or the phase place causes by the degree of stability test of each parameter.
(2) determine range of adjustment and adjusting fineness
Can in the scope of a certain setting, regulate automatically, removed the randomness of manual shift, can send simultaneously the adjusting fineness instruction of setting, and can judge the size of regulating fineness by the variation of each parameter mean value before and after the adjusting of standard scale, be difficult for judging the problem of regulating fineness when having eliminated manual shift.
(3) determine to influence each other
Can read the indicating value of normative reference table automatically, and automatically normative reference is represented that value adjusts to ratings 100%, can in the accommodation limit scope, regulate repeatedly in a certain amount simultaneously, and calculate the maximum variable quantity of each adjustment process automatically, and this process judges that by manual observation variation is very difficult, even the data volume and the data processing amount of data recording by each quantitative changeization of record is all very big, so this calibrating project can not accurately be finished basically by manual observation.
(4) determine symmetry
Can export by self-checking device, make supervisory instrument reach best symmetry status, and this process can make adjustment process long especially by manual shift, and difficulty reaches best symmetry status.
(5) determine to monitor the error of indication
Can read indicating value simultaneously, thereby remove the measuring error that the asynchronism of artificial reading numerical values is brought with reference to examination criteria device and tested monitoring form.
(6) device also has the function that imports and exports of calibrating and Characteristics Control data, can export to word and excel document, and have open interface, can provide data to be convenient to senior application such as analysis and statistics to other management system.
(7) meter characteristic analytical test
Concentrated design has been carried out in all meter characteristic analytical tests, be convenient to related calibrating and various meter characteristic control test for data result, and judge automatically according to the requirement of JJF1033-2008 " measurement standard examination standard " and JJF1069-2007 " legal metering validation activity examination standard ", strengthened the analysis of device meter characteristic and the ability of control and management.
The effect that this device detects automatically is to carry out projects according to the requirement of JJG597-2005 " AC electrical energy meter calibration rules " to detect automatically; The artificial data typing is can not be by computer-controlled test portion during compensation detects automatically; The meter characteristic analysis is that the current meter characteristic to AC electrical energy meter calibration detects; And finish the work of providing of all data processing and report data according to the calibrating and the data of meter characteristic analytical test by the software systems of device.
The utility model to the automatic testing process of device is: at first connect electric current and voltage connecting line and data communication line before detection, then need the essential informations such as numbering, grade, constant, epi-position number of manual entry device; Select communication protocol then, and select corresponding pilot project and testing site, set up the scheme of test according to the grade of device; Directly click the testing that automatic detection can be controlled set project and finish automatically by computing machine projects again, finish until all items.
The project of the data of manual entry is tested by other supporting metrological standard unit, and the data typing control computer that final test is finished.
Device can also be finished the function of meter characteristic analysis task simultaneously, the tested electric energy meter that the uncertain evaluation of middle measurement of meter characteristic analytical test at present and replica test are selected is common tested electric energy meter, the meter characteristic of the tested electric energy meter that uncertainty of measurement checking, stability assessment, Intermediate Checks and comparison are selected should be stablized, and the result treatment of specific requirement should be carried out according to the requirement of JJF1033-2008 " measurement standard examination standard " and JJF1069-2007 " legal metering validation activity examination standard ".
After Measuring and testing or meter characteristic analytical test were finished, the software systems of device were automatically according to being finished the work of treatment of data by the grade of checking device according to the requirement of rules and standard, thereby finally finished the print job of providing of record, certificate or report.
In addition to the implementation, all employings are equal to replaces or the technical scheme of the automatic detection/calibrating of the electric energy meter standard set-up that form obtained of equivalent transformation and meter characteristic analysis, all drops within the protection domain of the present utility model.

Claims (4)

1. an electric energy meter standard set-up detects and the meter characteristic analytical equipment automatically, comprise as the reference examination criteria device that detects Metrological Standard Equipment, it is characterized in that: comprise that also the electric energy meter standard set-up detects and the meter characteristic analytic system automatically, described electric energy meter standard set-up detects automatically and communicates by letter by connection with tested electric energy meter standard set-up and with reference to the examination criteria device with the meter characteristic analytic system, described electric energy meter standard set-up automatic Verification and meter characteristic analytic system comprise control computer, be used for control computer with by checking device and the connection that is connected with reference to the examination criteria device, described control computer comprises automatic checkout system and meter characteristic analytic system.
2. electric energy meter standard set-up according to claim 1 automatically detects and the meter characteristic analytical equipment, it is characterized in that: described control computer be reserved with can finish data upload and with the data-interface of other system, equipment seamless link.
3. electric energy meter standard set-up according to claim 2 detects and the meter characteristic analytical equipment automatically, it is characterized in that: also comprise other supporting metrological standard unit, described supporting metrological standard unit comprises one or more in Insulation Resistance Tester, Hi-pot Tester, magnetic field tester, high-grade digital voltmeter, the distortion meter, and automatically detects with the electric energy meter standard set-up and to be connected with meter characteristic analytic system, tested device or to communicate by letter.
4. detect and the meter characteristic analytical equipment automatically according to each described electric energy meter standard set-up in the claim 1 to 3, it is characterized in that: described is electric energy meter standard set-up tester with reference to the examination criteria device.
CN200920037790U 2009-02-05 2009-02-05 Automatic detecting and metrological characteristic analyzing device for energy meter standard devices Expired - Lifetime CN201378204Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920037790U CN201378204Y (en) 2009-02-05 2009-02-05 Automatic detecting and metrological characteristic analyzing device for energy meter standard devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920037790U CN201378204Y (en) 2009-02-05 2009-02-05 Automatic detecting and metrological characteristic analyzing device for energy meter standard devices

Publications (1)

Publication Number Publication Date
CN201378204Y true CN201378204Y (en) 2010-01-06

Family

ID=41518321

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920037790U Expired - Lifetime CN201378204Y (en) 2009-02-05 2009-02-05 Automatic detecting and metrological characteristic analyzing device for energy meter standard devices

Country Status (1)

Country Link
CN (1) CN201378204Y (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102654570A (en) * 2011-03-04 2012-09-05 河北省电力研究院 Method for semi-automatically testing/calibrating instrument without programmable interface
CN103091530A (en) * 2013-01-28 2013-05-08 河北省电力公司电力科学研究院 Method for rapidly judging whether electric energy meter calibrating device end button potential difference is qualified
CN103310671A (en) * 2013-05-24 2013-09-18 北京东方计量测试研究所 Actual metering and calibrating operation simulating equipment
CN103576121A (en) * 2013-10-31 2014-02-12 惠州学院 Smart electric meter constant magnetic detecting system and method
CN103728584A (en) * 2013-10-30 2014-04-16 国家电网公司 Method and system for detecting intelligent ammeter magnetic disturbance
CN104215931A (en) * 2014-10-10 2014-12-17 国家电网公司 Automatic electric energy meter calibrating device period investigation method
CN104914398A (en) * 2015-06-19 2015-09-16 国网天津市电力公司 Stability test method for access-type three-phase intelligent electric energy meter automatic verification system
CN104914396A (en) * 2015-06-19 2015-09-16 国网天津市电力公司 Stability test method for single-phase intelligent electric energy meter automatic verification system
CN104914402A (en) * 2015-06-19 2015-09-16 国网天津市电力公司 Stability test method for straight-type three-phase intelligent electric energy meter automatic verification system
CN104931915A (en) * 2015-06-19 2015-09-23 国网天津市电力公司 Repeatability test method applied to single-phase intelligent energy meter automated verification system
CN104991217A (en) * 2015-06-19 2015-10-21 国网天津市电力公司 Repeatability test method for straight-in type three-phase intelligent electric energy meter automation calibration system
CN104991216A (en) * 2015-06-19 2015-10-21 国网天津市电力公司 Period check method for straight-in type three-phase intelligent electric energy meter automation calibration system
CN106772196A (en) * 2017-01-05 2017-05-31 云南电网有限责任公司电力科学研究院 A kind of electric energy metrical standard set-up on-line monitoring method
WO2022052836A1 (en) * 2020-09-10 2022-03-17 中国电子科技集团公司第三十八研究所 Intelligent instrument and meter verification system and method

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102654570A (en) * 2011-03-04 2012-09-05 河北省电力研究院 Method for semi-automatically testing/calibrating instrument without programmable interface
CN103091530A (en) * 2013-01-28 2013-05-08 河北省电力公司电力科学研究院 Method for rapidly judging whether electric energy meter calibrating device end button potential difference is qualified
CN103091530B (en) * 2013-01-28 2016-05-25 河北省电力公司电力科学研究院 Judge fast the whether qualified method of electric energy meter calibrating apparatus terminal potential difference
CN103310671A (en) * 2013-05-24 2013-09-18 北京东方计量测试研究所 Actual metering and calibrating operation simulating equipment
CN103728584A (en) * 2013-10-30 2014-04-16 国家电网公司 Method and system for detecting intelligent ammeter magnetic disturbance
CN103576121A (en) * 2013-10-31 2014-02-12 惠州学院 Smart electric meter constant magnetic detecting system and method
CN103576121B (en) * 2013-10-31 2018-07-10 惠州学院 A kind of intelligent electric meter perseverance magnetic detection system and its method
CN104215931A (en) * 2014-10-10 2014-12-17 国家电网公司 Automatic electric energy meter calibrating device period investigation method
CN104914398A (en) * 2015-06-19 2015-09-16 国网天津市电力公司 Stability test method for access-type three-phase intelligent electric energy meter automatic verification system
CN104914396A (en) * 2015-06-19 2015-09-16 国网天津市电力公司 Stability test method for single-phase intelligent electric energy meter automatic verification system
CN104914402A (en) * 2015-06-19 2015-09-16 国网天津市电力公司 Stability test method for straight-type three-phase intelligent electric energy meter automatic verification system
CN104931915A (en) * 2015-06-19 2015-09-23 国网天津市电力公司 Repeatability test method applied to single-phase intelligent energy meter automated verification system
CN104991217A (en) * 2015-06-19 2015-10-21 国网天津市电力公司 Repeatability test method for straight-in type three-phase intelligent electric energy meter automation calibration system
CN104991216A (en) * 2015-06-19 2015-10-21 国网天津市电力公司 Period check method for straight-in type three-phase intelligent electric energy meter automation calibration system
CN106772196A (en) * 2017-01-05 2017-05-31 云南电网有限责任公司电力科学研究院 A kind of electric energy metrical standard set-up on-line monitoring method
CN106772196B (en) * 2017-01-05 2019-08-06 云南电网有限责任公司电力科学研究院 A kind of electrical energy measurement standard set-up on-line monitoring method
WO2022052836A1 (en) * 2020-09-10 2022-03-17 中国电子科技集团公司第三十八研究所 Intelligent instrument and meter verification system and method

Similar Documents

Publication Publication Date Title
CN201378204Y (en) Automatic detecting and metrological characteristic analyzing device for energy meter standard devices
CN107247249A (en) A kind of alternating current-direct current ammeter tester calibrating installation and calibration method
CN201336157Y (en) Novel test device for reactor protection systematic procedure instrument testing
CN107478382B (en) Automatic detection device and detection method for pressure instrument
CN104111436A (en) Automatic detection system and method for digital multimeter
CN107589391B (en) Method, device and system for detecting integral error of electric energy metering device
CN105785306A (en) Voltage transformer on-line group calibration method and apparatus
CN106405294B (en) Portable power distribution product transmission calibrator and implementation test method thereof
CN105116369A (en) Radio frequency radiation disturbance rejection degree test apparatus and system
CN102385937A (en) Leakage rate detection method and system for containment of nuclear power station
WO2020233516A1 (en) Measuring instrument mass transfer/traceability method and measuring instrument management system
CN103487210A (en) Full-automatic calibrating and debugging method and apparatus for intelligent pressure meter
CN104991216A (en) Period check method for straight-in type three-phase intelligent electric energy meter automation calibration system
CN204154892U (en) A kind of device for energy meter standard automatic verification system
CN105467355A (en) Automatic testing method of electric energy meter and automatic testing device of same
CN204479197U (en) A kind of acquisition system of electric equipment temperature rise test data
CN103344937B (en) Intelligent electric energy meter consumption detection equipment and detection method
CN200997633Y (en) Automatic testing system based on graphic testing platform
CN106443567A (en) Real-load test system for electric energy meters
CN113866698A (en) Detection system, detection method and server for verification assembly line of metering device
CN204228937U (en) A kind of 8 epi-position signal switching apparatus and digital instrument automatic school inspection control device
CN103197276A (en) Reliability automatic detecting device of intelligent energy meter
CN203178477U (en) Automatic detection device for reliability of intelligent electric energy meter
CN104914401A (en) Period check method for access-type three-phase intelligent electric energy meter automatic verification system
CN2427816Y (en) Instrument for measuring and calibrating electricity meter testing device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: ELECTRIC POWER RESEARCH INSTITUTE, JIANGSU ELECTRI

Free format text: FORMER OWNER: JIANGOU PROVINCIAL POWER TEST INST CO., LTD.

Effective date: 20121026

Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP

Effective date: 20121026

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 210029 NANJING, JIANGSU PROVINCE TO: 210036 NANJING, JIANGSU PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20121026

Address after: 210036 Fenghuang West Street, Jiangsu, Nanjing, China, No. 243

Patentee after: Electric Power Research Institute of Jiangsu Electric Power Company

Patentee after: Jiangsu Electric Power Company

Patentee after: State Grid Corporation of China

Address before: 210029, No. 58, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing

Patentee before: Jiangou Provincial Power Test Inst Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20100106

CX01 Expiry of patent term