CN108680886A - Integral electrical voltage transformer automated calibration equipment - Google Patents
Integral electrical voltage transformer automated calibration equipment Download PDFInfo
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- CN108680886A CN108680886A CN201810504348.2A CN201810504348A CN108680886A CN 108680886 A CN108680886 A CN 108680886A CN 201810504348 A CN201810504348 A CN 201810504348A CN 108680886 A CN108680886 A CN 108680886A
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- module
- voltage transformer
- electrically connected
- tested
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing 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)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a kind of integral electrical voltage transformer automated calibration equipments, including：Tested voltage transformer and standard potential transformer, are connected to signal acquisition module and signal trace module by RS485 interfaces respectively；The signal acquisition module is electrically connected at signal isolation module, and the signal isolation module is electrically connected at multistage amplification module, and the multistage amplification module is electrically connected at error-tested module；Microprocessing unit is electrically connected in the signal trace module and error-tested module；The microprocessing unit is also electrically connected with data memory module and data disaply moudle.Via signal trace module error-tested module is compared the signal for being tested voltage transformer and standard potential transformer；Reduce the frequency that operating personnel contact with high-voltage line, keep voltage transformer verification operation person works safer, the voltage of measurement is accurate and stablizes, and improves work efficiency.
Description
Technical field
The present invention relates to electrical equipment technical field, specially a kind of integral electrical voltage transformer automatic Verification is set
It is standby.
Background technology
Voltage transformer calibration equipment be for measuring electric current and power on high-tension line, plaing a part of to be dielectrically separated from,
To ensure the safety of operating personnel and instrument, it is one during equipment networking requires to voltage transformer rationally, accurately test
A key link, and have to the economy of power grid, stable operation for the voltage transformer calibration method research in electric system
Significance is eliminated or is reduced and bring great harm to the safe and stable operation of power grid due to equipment is unqualified, avoids therefore
Loss caused by and, to ensure the safe and stable operation of power grid.
Such as application No. is the Chinese patents of CN201720591497.8, and it discloses a kind of automatic schools of voltage of power mutual inductor
Equipment is tested, the tested voltage transformer is electrically connected with voltage acquisition module, and the voltage acquisition module is electrically connected with more
Road signal trace unit, the multiple signals tracking cell are electrically connected with standard potential transformer, the microprocessing unit electricity
Property is connected with voltage check module, and the voltage check module is electrically connected with voltage regulating module, and the voltage acquisition module is electrical
It is connected with frequency-selecting and filtering module, the microprocessing unit is electrically connected with digital input module and current rectifying and wave filtering circuit, described micro-
Processing unit is electrically connected with data protection unit and switch power module, and the microprocessing unit is electrically connected with data storage
Module and data disaply moudle.The utility model reduces the frequency that operating personnel contact with high-voltage line, makes voltage transformer school
It is safer to test operating personnel's work, the voltage of measurement is accurate and stablizes, and improves work efficiency.
But said program has the following disadvantages：
1, it cannot accomplish the data after detection intuitively to show expression；
2, the data-signal accuracy of its detection is low, is unfavorable for the accurate progress of verification.
Invention content
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of integral electrical voltage proposed
Automatic mutual-inductor calibrating equipment.
To achieve the above object, the present invention provides the following technical solutions：
A kind of integral electrical voltage transformer automated calibration equipment, including：
Tested voltage transformer and standard potential transformer, are connected to signal acquisition module and letter by RS485 interfaces respectively
Number tracking module；
The signal acquisition module is electrically connected at signal isolation module, and the signal isolation module is electrically connected at multistage amplification
Module, the multistage amplification module are electrically connected at error-tested module；
Microprocessing unit is electrically connected in the signal trace module and error-tested module；
The microprocessing unit is also electrically connected with data memory module and data disaply moudle.
Preferably, the standard potential transformer uses electromagnetic potential transformer.
Preferably, the data disaply moudle includes display screen, chart generating module and rendering module, the chart life
At module for the data in called data memory module, Data Integration Cheng Kuanbiao and two-dimensional diagram then are carried out to the data,
And it by the rendering of rendering module, is come out finally by display screen real-time display.
Preferably, the two-dimensional diagram includes block diagram, line chart, scatter plot, pie chart, radar map and crater blasting.
Preferably, the microprocessing unit is ARM processing units.
Compared with prior art, the beneficial effects of the invention are as follows：Acquisition module acquires tested voltage transformer and mark respectively
Collected data are carried out multiple-stage filtering via multistage amplification module and multistage are amplified by the signal of quasi- voltage transformer, and by
Analog quantity is converted to digital quantity by high-precision A/D conversion chips, finally makes error-tested module via signal trace module
Signal to being tested voltage transformer and standard potential transformer is compared；After comparison, pass through the rectification in microprocessing unit
Filter circuit handles information.Reduce the frequency that operating personnel contact with high-voltage line, makes voltage transformer verification operation
Person works are safer, and the voltage of measurement is accurate and stablizes, and improves work efficiency；Data disaply moudle includes display
Screen, chart generating module and rendering module, the chart generating module is used for the data in called data memory module, then right
The data carry out Data Integration Cheng Kuanbiao and two-dimensional diagram, and by the rendering of rendering module, are shown in real time finally by display screen
It shows to come.It is shown with succinct, efficient, intuitive way.
Description of the drawings
Fig. 1 is present system schematic diagram.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution：
A kind of integral electrical voltage transformer automated calibration equipment, including：
Tested voltage transformer and standard potential transformer, are connected to signal acquisition module and letter by RS485 interfaces respectively
Number tracking module；
The signal acquisition module is electrically connected at signal isolation module, and the signal isolation module is electrically connected at multistage amplification
Module, the multistage amplification module are electrically connected at error-tested module；
Microprocessing unit is electrically connected in the signal trace module and error-tested module；
The microprocessing unit is also electrically connected with data memory module and data disaply moudle.
The standard potential transformer uses electromagnetic potential transformer.
The data disaply moudle includes display screen, chart generating module and rendering module, the chart generating module
For the data in called data memory module, Data Integration Cheng Kuanbiao and two-dimensional diagram then are carried out to the data, and pass through
The rendering of rendering module comes out finally by display screen real-time display.It is shown with succinct, efficient, intuitive way.
The two-dimensional diagram includes block diagram, line chart, scatter plot, pie chart, radar map and crater blasting.
The microprocessing unit is ARM processing units.
Remaining two-phase is defeated after the tested voltage transformer output end of transformer outgoing line side accesses the electromagnetic potential transformer
Enter end connection；
The voltage transformer tester by the two-phase output data of the capacitance type potential transformer of the transformer outgoing line side and
For the single-phase output data of electromagnetic potential transformer as normal data, the error-tested module includes voltage transformer verification
Instrument, voltage transformer load tester and oscillograph；Voltage transformer tester and Secondary Load of Voltage Transformer tester
Number is two.
Capacitance type potential transformer by the signal isolation module respectively with the voltage transformer tester and oscillography
Device connects；Electromagnetic potential transformer is connect by the signal isolation module with the voltage transformer tester.
Capacitance type potential transformer and electromagnetic potential transformer directly connect with the voltage transformer load tester
It connects.
Acquisition module acquires the signal of tested voltage transformer and standard potential transformer respectively, via multistage amplification module
Collected data are subjected to multiple-stage filtering and multistage amplification, and analog quantity is converted into number by high-precision A/D conversion chips
Word amount finally makes letter of the error-tested module to tested voltage transformer and standard potential transformer via signal trace module
It number is compared；After comparison, information is handled by the current rectifying and wave filtering circuit in microprocessing unit.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of integral electrical voltage transformer automated calibration equipment, which is characterized in that including：
Tested voltage transformer and standard potential transformer, are connected to signal acquisition module and letter by RS485 interfaces respectively
Number tracking module；
The signal acquisition module is electrically connected at signal isolation module, and the signal isolation module is electrically connected at multistage amplification
Module, the multistage amplification module are electrically connected at error-tested module；
Microprocessing unit is electrically connected in the signal trace module and error-tested module；
The microprocessing unit is also electrically connected with data memory module and data disaply moudle.
2. a kind of integral electrical voltage transformer automated calibration equipment according to claim 1, it is characterised in that：It is described
Standard potential transformer uses electromagnetic potential transformer.
3. a kind of integral electrical voltage transformer automated calibration equipment according to claim 1, it is characterised in that：It is described
Data disaply moudle includes display screen, chart generating module and rendering module, and the chart generating module is used for called data
Then data in memory module carry out Data Integration Cheng Kuanbiao and two-dimensional diagram, and the wash with watercolours for passing through rendering module to the data
Dye, comes out finally by display screen real-time display.
4. a kind of integral electrical voltage transformer automated calibration equipment according to claim 3, it is characterised in that：It is described
Two-dimensional diagram includes block diagram, line chart, scatter plot, pie chart, radar map and crater blasting.
5. a kind of integral electrical voltage transformer automated calibration equipment according to claim 1, it is characterised in that：It is described
Microprocessing unit is ARM processing units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810504348.2A CN108680886A (en) | 2018-05-24 | 2018-05-24 | Integral electrical voltage transformer automated calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810504348.2A CN108680886A (en) | 2018-05-24 | 2018-05-24 | Integral electrical voltage transformer automated calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108680886A true CN108680886A (en) | 2018-10-19 |
Family
ID=63807930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810504348.2A Pending CN108680886A (en) | 2018-05-24 | 2018-05-24 | Integral electrical voltage transformer automated calibration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108680886A (en) |
Citations (11)
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|---|---|---|---|---|
| CN101604009A (en) * | 2009-07-22 | 2009-12-16 | 天津市电力公司 | Method for verifying universal electronic type mutual inductor |
| CN201438211U (en) * | 2009-06-17 | 2010-04-14 | 西安华伟光电技术有限公司 | Electronic transformer calibrator |
| CN102073028A (en) * | 2010-10-21 | 2011-05-25 | 中国南方电网有限责任公司超高压输电公司柳州局 | Onsite stable state precision calibration system of electronic voltage transformer and calibration method thereof |
| CN102854486A (en) * | 2012-09-26 | 2013-01-02 | 湖北省电力公司电力科学研究院 | On-site initiative error-verification system for voltage transformer and method thereof |
| CN202870288U (en) * | 2012-09-05 | 2013-04-10 | 山东鼎鑫电气科技有限公司 | Totally closed 500kV electromagnetic voltage transformer test unit |
| CN203069773U (en) * | 2013-02-27 | 2013-07-17 | 陕西省电力公司规划评审中心 | Onsite accuracy-calibrating system for 750kV voltage transformer |
| CN103941213A (en) * | 2014-04-15 | 2014-07-23 | 国网上海市电力公司 | Site calibration method for GIS current transformer |
| CN104155627A (en) * | 2014-08-18 | 2014-11-19 | 国家电网公司 | Error characteristic detection method of extra high voltage capacitive voltage transformer |
| CN105137381A (en) * | 2015-08-28 | 2015-12-09 | 南京博纳威电子科技有限公司 | Intelligent current and voltage transformer verifying unit |
| CN105974353A (en) * | 2016-06-29 | 2016-09-28 | 南京国电南自电网自动化有限公司 | Mutual inductor amplitude and phase detection method based on virtual instrument |
| CN206788353U (en) * | 2017-05-24 | 2017-12-22 | 魏贞贞 | A kind of voltage of power automatic mutual-inductor calibrating equipment |
-
2018
- 2018-05-24 CN CN201810504348.2A patent/CN108680886A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201438211U (en) * | 2009-06-17 | 2010-04-14 | 西安华伟光电技术有限公司 | Electronic transformer calibrator |
| CN101604009A (en) * | 2009-07-22 | 2009-12-16 | 天津市电力公司 | Method for verifying universal electronic type mutual inductor |
| CN102073028A (en) * | 2010-10-21 | 2011-05-25 | 中国南方电网有限责任公司超高压输电公司柳州局 | Onsite stable state precision calibration system of electronic voltage transformer and calibration method thereof |
| CN202870288U (en) * | 2012-09-05 | 2013-04-10 | 山东鼎鑫电气科技有限公司 | Totally closed 500kV electromagnetic voltage transformer test unit |
| CN102854486A (en) * | 2012-09-26 | 2013-01-02 | 湖北省电力公司电力科学研究院 | On-site initiative error-verification system for voltage transformer and method thereof |
| CN203069773U (en) * | 2013-02-27 | 2013-07-17 | 陕西省电力公司规划评审中心 | Onsite accuracy-calibrating system for 750kV voltage transformer |
| CN103941213A (en) * | 2014-04-15 | 2014-07-23 | 国网上海市电力公司 | Site calibration method for GIS current transformer |
| CN104155627A (en) * | 2014-08-18 | 2014-11-19 | 国家电网公司 | Error characteristic detection method of extra high voltage capacitive voltage transformer |
| CN105137381A (en) * | 2015-08-28 | 2015-12-09 | 南京博纳威电子科技有限公司 | Intelligent current and voltage transformer verifying unit |
| CN105974353A (en) * | 2016-06-29 | 2016-09-28 | 南京国电南自电网自动化有限公司 | Mutual inductor amplitude and phase detection method based on virtual instrument |
| CN206788353U (en) * | 2017-05-24 | 2017-12-22 | 魏贞贞 | A kind of voltage of power automatic mutual-inductor calibrating equipment |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181019 |
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| RJ01 | Rejection of invention patent application after publication |