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CN106294956A - For detecting the processing system of current transformer - Google Patents

For detecting the processing system of current transformer Download PDF

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Publication number
CN106294956A
CN106294956A CN201610624528.5A CN201610624528A CN106294956A CN 106294956 A CN106294956 A CN 106294956A CN 201610624528 A CN201610624528 A CN 201610624528A CN 106294956 A CN106294956 A CN 106294956A
Authority
CN
China
Prior art keywords
data
module
input
current transformer
report
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.)
Pending
Application number
CN201610624528.5A
Other languages
Chinese (zh)
Inventor
王忠军
王燕廷
姜伟
张磊
王金鑫
牟新喆
朱博
胡志恒
贾树林
程平
李�昊
刘烨
廉志
于鸿
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.)
Qiqihar Electric Co Of State Net Heilongjiang Power Co Ltd
State Grid Corp of China SGCC
Original Assignee
Qiqihar Electric Co Of State Net Heilongjiang Power Co Ltd
State Grid Corp of China SGCC
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 Qiqihar Electric Co Of State Net Heilongjiang Power Co Ltd, State Grid Corp of China SGCC filed Critical Qiqihar Electric Co Of State Net Heilongjiang Power Co Ltd
Priority to CN201610624528.5A priority Critical patent/CN106294956A/en
Publication of CN106294956A publication Critical patent/CN106294956A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00Computer-aided design [CAD]
    • G06F30/20Design optimisation, verification or simulation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/02Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

For detecting the processing system of current transformer, belong to current transformer detection, analysis field.Solve existing current transformer tester man-machine interaction poor, only consider current device service condition down-sampled data, and sampled data error is big, and do not consider current transformer self attributes, cause finally detecting the problem that structural fidelity is low and cannot form complete test report.It includes login interface module, Report Parameters input module, CT basic parameter inputting interface module, CT no-load voltage ratio input module, VA characteristic curve module, data process&analysis module, report generation module and DBM;The present invention is simple to operate, directly perceived, highly versatile, the speed of service fast, data analysis efficiency is high, can form the test report of specification, be greatly saved field personnel's test report writing time.It is mainly used in current transformer is detected.

Description

For detecting the processing system of current transformer
Technical field
The invention belongs to current transformer (CT) detection, analysis field.
Background technology
Current transformer english abbreviation " CT ", current transformer (CT) carries primary system and secondary system in transformer station The contact function of system, the main change characterizing primary system electric parameters of its effect.It is measurement apparatus, measuring instrument, protection dress The secondary device such as put and electric current secondary analog quantity is provided, fault case and the non-faulting state of electrical equipment can be objectively responded.As electricity The electrical equipment that Force system is crucial, electrical test seems abnormal important.
According to the old and new's standard-required of China's electric power code, the every examination before current transformer is installed or after replacing winding Test the pilot project being all to detect.For the installation matter of the most objective kinetic current transformer body in field engineering Amount, is allowed to meet application standard and correlation technique regulation, and it is qualified that secondary staff must examine and determine its various parameters, it is ensured that survey The accuracy of amount, reliability.
The deficiency that at present on-site current transformer (CT) test exists has these points:
1) human-computer interaction interface operation inconvenience, there is limitation in system, algorithm.
On-the-spot CT tester is typically all the modes of operation such as touch screen, or roller, depends on its own system support completely, it is impossible to Realize operation flexibly and data process and analytical calculation.
2) retardance of time, " data " (finger to finger test personnel, pilot project, testing equipment parameter, are joined by testing equipment Number, test period, test data etc.) unreliability, imperfection.
On-the-spot application CT assay device uses embedded LCDs, is only limitted to current device under current operating conditions Running, it is impossible to include above-mentioned " data ", meanwhile, in process of the test, typically all testing crew is manually recorded or strip prints relevant Test data, the formation of CT test report can complete after can only waiting end-of-job, thus be easily caused data distortion, during report Extend.
3) data acquisition sampling point is accurate not, and interpretation of result error is bigger.
CT tester data acquisition sampling point precision is inadequate, and C-V characteristic is only trace-point method simultaneously so that data results exists There is error to a certain extent.
4) anthropic factor weight relatively affects greatly.
In process of the test, the reading people from scene of data is used valuation record, loses test knot to a certain extent The accuracy of fruit.
5) complete test report can not be formed.
The consideration test feature that CT test is the most simple is tested, it is impossible to meets user's actual need and meets technology rule Complete test report.
In order to solve above-mentioned deficiency, this application system is independent operating under PC operating system, in satisfied on-the-spot different CT examinations Testing " data " in instrument process of the test, in real time in input (or being automatically imported) this software, software utilizes relevant mathematical method pair Sampled data carries out process of refinement, depicts smooth conic section.Then, bis-Equivalent Model of CT and mathematical analysis are utilized Data are carried out processing and being calculated corresponding result of the test by method, and finally, software is according to fixing test report establishment mould Plate forms complete test report.
Summary of the invention
The present invention is poor in order to solve existing current transformer (CT) tester man-machine interaction, only considers current device fortune Sampled data under the conditions of row, and sampled data error is big, and do not consider current transformer (CT) self attributes, cause finally detecting Structural fidelity is low and cannot form the problem of complete test report, the invention provides a kind of for detecting current transformer Processing system.
For detecting the processing system of current transformer, it includes login interface module, Report Parameters input module, CT base This parameter inputting interface module, CT no-load voltage ratio input module, VA characteristic curve module, data process&analysis module, report is raw Become module and DBM;
Login interface module, for providing the interface of account number, password authentification, has control user right, record user behavior, The effect of protection operation safety;
Report Parameters input module, for input current transformer title, infield, test teams and groups, write the time, batch Quasi-people, person approving, director, coder;When input results is empty, then jump out dialog box prompting " parameter please be input ", until defeated Till entering parameter;
CT basic parameter inputting interface module, is used for inputting separate, manufacturer, date of manufacture, product type, volume of dispatching from the factory Number, winding, no-load voltage ratio, class of accuracy, rated capacity, nominal insulation, rated short time thermal current and specified dynamic current parameter;
CT no-load voltage ratio input module, is used for inputting CT test connection direction, purposes, winding, class of accuracy, actual measurement polarity, actual measurement No-load voltage ratio, conducting resistance parameter, data that CT no-load voltage ratio input module test according to scene and result, select corresponding purposes, input Parameter preserves data;
VA characteristic curve module, the crucial discrete data point obtained according to on-the-spot volt-ampere characteristic test, the most defeated Enter or be introduced directly into crucial discrete data, then utilizing cubic interpolation method that crucial discrete data is processed, close after process Key discrete data data become discrete data at equal intervals, and further according to flex point method for solving, equity spaced discrete data row are programmed into Row calculates, and obtains knee value;
Data process&analysis module, for carrying out on backstage calculating according to the input data of each module, merge, preserve and Output function;For determining saturated 10% curve of error of CT operation curve, CT according to knee value;
Report generation module is saturated for data, CT operation curve and CT data process&analysis module generated 10% curve of error generates the report file of word form;
DBM, for data storage with call.
Described login interface module, for providing the interface of account number, password authentification, has control user right, record to use Family behavior, the effect of protection operation safety, realize especially by following manner:
First, the data of user's input to be carried out preliminary identification, it is judged that input data are the most effective, if invalid, then Return from newly inputted, jump out the prompting of " incorrect data input ";If it is valid, carry out continuing checking, call DBM Middle data, check whether whether the data of input mate with data in DBM, and the match is successful, then jump out " logining successfully " Prompting, it fails to match, otherwise returns, for from newly inputted data.
Described CT test connection direction includes once, the wiring direction of secondary side winding.
The form of the described crucial discrete data in VA characteristic curve module is " .txt form ".
Described Report Parameters input module also includes that user adds option, adds parameter according to demand in this option.
The present invention brings and provides the benefit that, the present invention can solve to there is anthropic factor weight shadow in on-the-spot CT process of the test Ringing, the inefficiency of operating personnel, the poor reliability of test data, data sampling errors is big, and interpretation of result is judged by accident, and not The problems such as complete test report can be formed, it is achieved man-machine interaction.It is software application system at this stage, can answer widely It is used in actual production, is totally independent of CT testing equipment, but different CT testing equipments is had versatility.
Detailed description of the invention
Detailed description of the invention one: the processing system for detecting current transformer described in present embodiment, it includes stepping on Record interface module, Report Parameters input module, CT basic parameter inputting interface module, CT no-load voltage ratio input module, C-V characteristic are bent Wire module, data process&analysis module, report generation module and DBM;
Login interface module, for providing the interface of account number, password authentification, has control user right, record user behavior, The effect of protection operation safety;
Report Parameters input module, for input current transformer title, infield, test teams and groups, write the time, batch Quasi-people, person approving, director, coder;When input results is empty, then jump out dialog box prompting " parameter please be input ", until defeated Till entering parameter;
CT basic parameter inputting interface module, is used for inputting separate, manufacturer, date of manufacture, product type, volume of dispatching from the factory Number, winding, no-load voltage ratio, class of accuracy, rated capacity, nominal insulation, rated short time thermal current and specified dynamic current parameter;
CT no-load voltage ratio input module, is used for inputting CT test connection direction, purposes, winding, class of accuracy, actual measurement polarity, actual measurement No-load voltage ratio, conducting resistance parameter, data that CT no-load voltage ratio input module test according to scene and result, select corresponding purposes, input Parameter preserves data;
VA characteristic curve module, the crucial discrete data point obtained according to on-the-spot volt-ampere characteristic test, the most defeated Enter or be introduced directly into crucial discrete data, then utilizing cubic interpolation method that crucial discrete data is processed, close after process Key discrete data data become discrete data at equal intervals, and further according to flex point method for solving, equity spaced discrete data row are programmed into Row calculates, and obtains knee value;
Data process&analysis module, for carrying out on backstage calculating according to the input data of each module, merge, preserve and Output function;For determining saturated 10% curve of error of CT operation curve, CT according to knee value;
Report generation module is saturated for data, CT operation curve and CT data process&analysis module generated 10% curve of error generates the report file of word form;
DBM, for data storage with call.
Present embodiment, user can pass through login system, input correct username and password and log in, obtain the right to use Limit.
In CT basic parameter inputting interface module, user can select input relevant parameter and preserve this parameter intuitively. Wherein no-load voltage ratio, rated capacity, class of accuracy are parameters necessary, are the foundations of CT no-load voltage ratio test judgement.
Detailed description of the invention two: present embodiment and the process for detecting current transformer described in specific embodiment party one The difference of system is, described login interface module, for providing the interface of account number, password authentification, have control user right, Record user behavior, the effect of protection operation safety, realize especially by following manner:
First, the data of user's input to be carried out preliminary identification, it is judged that input data are the most effective, if invalid, then Return from newly inputted, jump out the prompting of " incorrect data input ";If it is valid, carry out continuing checking, call DBM Middle data, check whether whether the data of input mate with data in DBM, and the match is successful, then jump out " logining successfully " Prompting, it fails to match, otherwise returns, for from newly inputted data.
Detailed description of the invention three: present embodiment and the place for detecting current transformer described in detailed description of the invention one The difference of reason system is, described CT test connection direction includes once, the wiring direction of secondary side winding.
Detailed description of the invention four: present embodiment and the place for detecting current transformer described in detailed description of the invention one The difference of reason system is, the form of the described crucial discrete data in VA characteristic curve module is " .txt form ".
Detailed description of the invention five: present embodiment and the place for detecting current transformer described in detailed description of the invention one The difference of reason system is, described Report Parameters input module also includes that user adds option, according to demand in this option Add parameter.

Claims (5)

1. for detecting the processing system of current transformer, it is characterised in that it includes that login interface module, Report Parameters input Module, CT basic parameter inputting interface module, CT no-load voltage ratio input module, VA characteristic curve module, data process&analysis mould Block, report generation module and DBM;
Login interface module, for providing the interface of account number, password authentification, has control user right, record user behavior, protection The effect of operation safety;
Report Parameters input module, for input current transformer title, infield, test teams and groups, writes time, approval People, person approving, director, coder;When input results is empty, then jump out dialog box prompting " parameter please be input ", until input Till parameter;
CT basic parameter inputting interface module, be used for inputting separate, manufacturer, the date of manufacture, product type, factory number, Winding, no-load voltage ratio, class of accuracy, rated capacity, nominal insulation, rated short time thermal current and specified dynamic current parameter;
CT no-load voltage ratio input module, be used for inputting CT test connection direction, purposes, winding, class of accuracy, actual measurement polarity, actual measurement no-load voltage ratio, Conducting resistance parameter, data that CT no-load voltage ratio input module test according to scene and result, select corresponding purposes, input parameter guarantor Deposit data;
VA characteristic curve module, the crucial discrete data point obtained according to on-the-spot volt-ampere characteristic test, manually input or Be introduced directly into crucial discrete data, then utilize cubic interpolation method that crucial discrete data is processed, after process crucial from Scattered Data Data becomes discrete data at equal intervals, and further according to flex point method for solving, equity spaced discrete data row programming is counted Calculate, obtain knee value;
Data process&analysis module, for carrying out calculating, merge, preserve and exporting on backstage according to the input data of each module Function;For determining saturated 10% curve of error of CT operation curve, CT according to knee value;
Report generation module, data, CT operation curve and the CT saturated 10% for data process&analysis module being generated is by mistake Difference curve generates the report file of word form;
DBM, for data storage with call.
Processing system for detecting current transformer the most according to claim 1, it is characterised in that described login circle Face mould block, for providing the interface of account number, password authentification, has control user right, record user behavior, protection operation safety Effect, realizes especially by following manner:
First, the data of user's input to be carried out preliminary identification, it is judged that input data are the most effective, if invalid, then return From newly inputted, jump out the prompting of " incorrect data input ";If it is valid, carry out continuing checking, call number in DBM According to, whether whether the data of inspection input mate with data in DBM, and the match is successful, then jump out carrying of " logining successfully " Showing, it fails to match, otherwise returns, for from newly inputted data.
Processing system for detecting current transformer the most according to claim 1, it is characterised in that described CT test Wiring direction includes once, the wiring direction of secondary side winding.
Processing system for detecting current transformer the most according to claim 1, it is characterised in that described volt-ampere is special The form of the crucial discrete data in linearity curve module is " .txt form ".
Processing system for detecting current transformer the most according to claim 1, it is characterised in that described report ginseng Number input module also includes that user adds option, adds parameter according to demand in this option.
CN201610624528.5A 2016-08-02 2016-08-02 For detecting the processing system of current transformer Pending CN106294956A (en)

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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111044827A (en) * 2019-12-30 2020-04-21 山东泰开高压开关有限公司 Intelligent evaluation method for multi-tap current transformer

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CN103439682A (en) * 2013-09-16 2013-12-11 国家电网公司 Portable current transformer composite error testing device and method for testing composite error of current transformer by utilizing portable current transformer composite error testing device
CN104698423A (en) * 2015-03-30 2015-06-10 三峡大学 Error curve testing device for portable current transformer
WO2015180002A1 (en) * 2014-05-29 2015-12-03 国家电网公司 Apparatus for judging failure of iron core and clamping part of ultra-high voltage electric reactor, and processing and eliminating same online
RU162879U1 (en) * 2015-12-28 2016-06-27 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Нижегородский государственный университет им. Н.И. Лобачевского" AC METER

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CN101750560A (en) * 2009-12-18 2010-06-23 国网电力科学研究院武汉南瑞有限责任公司 Measuring device of volt-ampere characteristics of current transformer with high ampere turn and measuring method thereof
CN103439682A (en) * 2013-09-16 2013-12-11 国家电网公司 Portable current transformer composite error testing device and method for testing composite error of current transformer by utilizing portable current transformer composite error testing device
WO2015180002A1 (en) * 2014-05-29 2015-12-03 国家电网公司 Apparatus for judging failure of iron core and clamping part of ultra-high voltage electric reactor, and processing and eliminating same online
CN104698423A (en) * 2015-03-30 2015-06-10 三峡大学 Error curve testing device for portable current transformer
RU162879U1 (en) * 2015-12-28 2016-06-27 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Нижегородский государственный университет им. Н.И. Лобачевского" AC METER

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111044827A (en) * 2019-12-30 2020-04-21 山东泰开高压开关有限公司 Intelligent evaluation method for multi-tap current transformer

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Application publication date: 20170104