CN201444193U - Comprehensive error detection device used for digital electric energy measuring device - Google Patents
Comprehensive error detection device used for digital electric energy measuring device Download PDFInfo
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- CN201444193U CN201444193U CN2009200139606U CN200920013960U CN201444193U CN 201444193 U CN201444193 U CN 201444193U CN 2009200139606 U CN2009200139606 U CN 2009200139606U CN 200920013960 U CN200920013960 U CN 200920013960U CN 201444193 U CN201444193 U CN 201444193U
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- 238000005259 measurement Methods 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 1
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Abstract
The utility model relates to a comprehensive error detection device used for a digital electric energy measuring device. By adopting a standard voltage transformer, a standard current transformer, a standard electron transformer detector and a standard power meter, the device can measure the value of standard instruments by adding rated voltage and rated current to the voltage transformer and the current transformer in the circuit to be checked, and compare the measured value of the tested instrument with standard ones, thus realizing the comprehensive error detection for a digital electric energy measuring system including an electron transformer, a combining unit, an Ethernet network and a digital interface type electric energy meter. The comprehensive error detection device has the advantages of simple structure, convenient operation and accurate measurement of the comprehensive errors of all digital power measuring devices, and can be used for the error detection of electronic voltage transformers and current transformers.
Description
Technical field
The utility model relates to a kind of device that is used for the check of electric power meter composition error, and particularly a kind of digitalized electric energy measuring apparatus that is used for is carried out the device that composition error is checked.
Background technology
Traditional transformer station's electric power meter comprises electric energy meter, mutual inductor, secondary circuit three parts, its error also is made up of the error of this three part, be referred to as composition error, be the error γ d three's that electric energy meter error γ b, mutual inductor resultant error γ h, the pressure drop of voltage transformer secondary lead cause algebraic sum.Classic method is difference meter, mutual inductor, secondary circuit error, calculates γ b again; γ h; γ d calculates: γ=γ b+ γ h+ γ d at last.
In digital transformer substation, electric energy metered system is made of electronic type voltage transformer (PT), electronic current mutual inductor (CT), digital interface formula electric energy meter, optical fiber merge cells and fiber optic Ethernet.At present, also do not have legal inspection procedure and unified and standard method and device, carry out the composition error check of digitalized electric energy measuring apparatus.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, easy to operate, the composition error verifying attachment that is used for the digitalized electric energy measuring apparatus that accuracy is high, the voltage transformer (VT) of this device employing standard, current transformer, the electric mutual inductor calibrating instrument, the electric energy meter calibration instrument, by to tested line voltage distribution mutual inductor, current transformer adds rated voltage, rated current, measure the value of reference instrument, this standard is compared with the measured value of tested instrument, carry out electric mutual inductor, merge cells, Ethernet, digital interface formula electric energy meter is checked in interior digitalized electric energy metering system composition error.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of composition error verifying attachment that is used for the digitalized electric energy measuring apparatus, this device comprises power source, standard potential transformer, standard current transformer, mutual inductor detector, the electric energy meter detector that produces rated current and voltage signal, the power source that produces rated current and voltage signal is connected with standard potential transformer, standard current transformer respectively, standard potential transformer, the standard current transformer other end connect tested current/voltage mutual inductor, and the tested current/voltage mutual inductor other end engages and the unit; Standard potential transformer, standard current transformer are connected with the mutual inductor detector respectively, and the mutual inductor detector connects the electric energy meter detector, and the electric energy meter detector connects the measured number electric energy meter.
Described power source is three-phase program-controlled voltage current power source, adopts the pulse-width regulated technology, is used for providing high-quality steady-working state for the power electric energy measurement.
Described standard potential transformer, standard current transformer are connected with tested current/voltage mutual inductor input end, can realize error-tested to tested current/voltage mutual inductor by the mutual inductor detector.
Compared with prior art, the utility model has the advantages that:
1) simple in structure, easy to operate, can accurately measure the composition error of whole digitalized electric energy measuring apparatus;
2) this device can be used for the error-tested of electronic type voltage transformer, current transformer;
3) this device can be used for the error-tested that the current/voltage parameter is measured in the digital transformer substation comprehensive automation;
4) connect normalized current, voltage table at the standard mutual inductor secondary, read tested electric energy meter and monitoring part output simultaneously, can examine and determine digital transformer substation monitoring part electric current, voltage transformation, transmission mistake and promptly draw error amount.
Description of drawings
Fig. 1 is the composition error verifying attachment structural drawing that is used for the digitalized electric energy measuring apparatus.
Embodiment
This device is used in the little lump digitizing in Anshan electric substation, has solved the check problem of digital transformer substation digitalized electric energy metering system.
See Fig. 1, a kind of composition error verifying attachment that is used for the digitalized electric energy measuring apparatus, this device comprises power source, standard potential transformer, standard current transformer, mutual inductor detector, the electric energy meter detector that produces rated current and voltage signal, the power source that produces rated current and voltage signal is connected with standard potential transformer, standard current transformer respectively, standard potential transformer, the standard current transformer other end connect tested current/voltage mutual inductor, and the tested current/voltage mutual inductor other end engages and the unit; Standard potential transformer, standard current transformer are connected with the mutual inductor detector respectively, and the mutual inductor detector connects the electric energy meter detector, and the electric energy meter detector connects the measured number electric energy meter.
Described power source is three-phase program-controlled voltage current power source, adopts the pulse-width regulated technology, is used for providing high-quality steady-working state for the power electric energy measurement.
Described standard potential transformer, standard current transformer are connected with tested current/voltage mutual inductor input end, can realize error-tested to tested current/voltage mutual inductor by the mutual inductor detector.
The high-pressure side adopts standard mutual inductor and supporting current phase to fix the power source of (or adjustable) adjustable amplitude value, add single-phase (or three-phase) power frequency rated voltage to tested loop voltage mutual inductor primary side, the current transformer primary side adds single-phase (or three-phase) 1% to 120% power frequency rated current, the output of standard mutual inductor secondary connects (electronics) mutual-inductor tester, electrical energy meter calibration instrument current/voltage input end, tested loop electric energy meter (comprising the digital interface electric energy meter) pulse output connects energy electrical energy meter calibration instrument pulse input end, carries out electric mutual inductor in interior system synthesis error-tested.Can check electric mutual inductor simultaneously when connecing the electric mutual inductor tester.Connect normalized current, voltage table at the standard mutual inductor secondary, read tested electric energy meter and the output of monitoring part simultaneously, can examine and determine digital transformer substation monitoring part electric current, voltage transformation, transmission error.
Digital transformer substation and conventional substation that this device can be used for 10kV, 66kV, 220kV use.
Claims (3)
1. composition error verifying attachment that is used for the digitalized electric energy measuring apparatus, it is characterized in that, this device comprises power source, standard potential transformer, standard current transformer, mutual inductor detector, the electric energy meter detector that produces rated current and voltage signal, the power source that produces rated current and voltage signal is connected with standard potential transformer, standard current transformer respectively, standard potential transformer, the standard current transformer other end connect tested current/voltage mutual inductor, and the tested current/voltage mutual inductor other end engages and the unit; Standard potential transformer, standard current transformer are connected with the mutual inductor detector respectively, and the mutual inductor detector connects the electric energy meter detector, and the electric energy meter detector connects the measured number electric energy meter.
2. a kind of composition error verifying attachment that is used for the digitalized electric energy measuring apparatus according to claim 1, it is characterized in that, described power source is three-phase program-controlled voltage current power source, adopts the pulse-width regulated technology, is used for providing high-quality steady-working state for the power electric energy measurement.
3. a kind of composition error verifying attachment that is used for the digitalized electric energy measuring apparatus according to claim 1, it is characterized in that, described standard potential transformer, standard current transformer are connected with tested current/voltage mutual inductor input end, can realize error-tested to tested current/voltage mutual inductor by the mutual inductor detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200139606U CN201444193U (en) | 2009-05-27 | 2009-05-27 | Comprehensive error detection device used for digital electric energy measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009200139606U CN201444193U (en) | 2009-05-27 | 2009-05-27 | Comprehensive error detection device used for digital electric energy measuring device |
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| CN201444193U true CN201444193U (en) | 2010-04-28 |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872007A (en) * | 2010-06-10 | 2010-10-27 | 江西省电力科学研究院 | Calibration method of three-phase voltage transformer based on voltage transformer load error curve extrapolation |
| CN102221682A (en) * | 2011-03-23 | 2011-10-19 | 上海市电力公司 | Apparatus of rapidly detecting three-phase high-error electric energy meter and measuring method thereof |
| CN102221681A (en) * | 2011-03-23 | 2011-10-19 | 上海市电力公司 | Single-phase high-error rapid detection electric energy meter device and measurement method thereof |
| CN102253355A (en) * | 2011-05-31 | 2011-11-23 | 上海思南电力通信有限公司 | System and method for inspecting small-signal output type unconventional mutual inductor |
| CN102331567A (en) * | 2011-05-31 | 2012-01-25 | 上海思南电力通信有限公司 | Inspection system and inspection method for optical signal outputting type non-conventional instrument transformer (NCIT) |
| CN102338865A (en) * | 2011-06-17 | 2012-02-01 | 杭州炬华科技股份有限公司 | Method for quickly calibrating error of three-phase intelligent electric energy meter |
| CN102608451A (en) * | 2012-02-28 | 2012-07-25 | 中国南方电网有限责任公司超高压输电公司柳州局 | Tester for testing serial compensation control protector and testing method |
| CN103018707A (en) * | 2012-12-07 | 2013-04-03 | 山西省电力公司晋中供电分公司 | Error propagation method for digital electric energy meter |
| CN103439679A (en) * | 2013-08-28 | 2013-12-11 | 国家电网公司 | Absolute time delay detection device and method of intelligent substation mutual inductor data collection system |
| CN103645457A (en) * | 2013-12-20 | 2014-03-19 | 国家电网公司 | On-site inspection device for electric energy meter |
| CN104076319A (en) * | 2014-05-04 | 2014-10-01 | 贵州电力试验研究院 | Online error analysis system of digitized electric energy metering device |
| CN104597424A (en) * | 2015-01-07 | 2015-05-06 | 贵州电力试验研究院 | Verification platform and verification method for electric energy measurement of optical transformer |
| CN105203984A (en) * | 2014-06-12 | 2015-12-30 | 国网山西省电力公司电力科学研究院 | Intelligent substation 3/2 wiring bus reactive power calibrator based on conventional instrument transformers |
| CN105319436A (en) * | 2014-06-12 | 2016-02-10 | 国网山西省电力公司电力科学研究院 | Smart station 3/2 wiring bus reactive power checking method based on traditional transformer |
| CN105353331A (en) * | 2015-10-29 | 2016-02-24 | 中国电力科学研究院 | Electronic transformer metering performance detection system and method |
| CN107329104A (en) * | 2017-07-10 | 2017-11-07 | 广西电网有限责任公司电力科学研究院 | A kind of electronic mutual inductor magnitude tracing method and system of meter and composition error |
| CN107589391A (en) * | 2017-07-27 | 2018-01-16 | 武汉尤瑞卡节能科技有限公司 | A kind of methods, devices and systems for detecting electric power meter global error |
-
2009
- 2009-05-27 CN CN2009200139606U patent/CN201444193U/en not_active Expired - Lifetime
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872007A (en) * | 2010-06-10 | 2010-10-27 | 江西省电力科学研究院 | Calibration method of three-phase voltage transformer based on voltage transformer load error curve extrapolation |
| CN101872007B (en) * | 2010-06-10 | 2012-12-26 | 江西省电力科学研究院 | Calibration method of three-phase voltage transformer based on voltage transformer load error curve extrapolation |
| CN102221682A (en) * | 2011-03-23 | 2011-10-19 | 上海市电力公司 | Apparatus of rapidly detecting three-phase high-error electric energy meter and measuring method thereof |
| CN102221681A (en) * | 2011-03-23 | 2011-10-19 | 上海市电力公司 | Single-phase high-error rapid detection electric energy meter device and measurement method thereof |
| CN102253355B (en) * | 2011-05-31 | 2014-03-26 | 上海电力通信有限公司 | System and method for inspecting small-signal output type unconventional mutual inductor |
| CN102253355A (en) * | 2011-05-31 | 2011-11-23 | 上海思南电力通信有限公司 | System and method for inspecting small-signal output type unconventional mutual inductor |
| CN102331567A (en) * | 2011-05-31 | 2012-01-25 | 上海思南电力通信有限公司 | Inspection system and inspection method for optical signal outputting type non-conventional instrument transformer (NCIT) |
| CN102331567B (en) * | 2011-05-31 | 2014-03-26 | 上海电力通信有限公司 | Inspection system and inspection method for optical signal outputting type non-conventional instrument transformer (NCIT) |
| CN102338865A (en) * | 2011-06-17 | 2012-02-01 | 杭州炬华科技股份有限公司 | Method for quickly calibrating error of three-phase intelligent electric energy meter |
| CN102338865B (en) * | 2011-06-17 | 2013-11-06 | 杭州炬华科技股份有限公司 | Method for quickly calibrating error of three-phase intelligent electric energy meter |
| CN102608451A (en) * | 2012-02-28 | 2012-07-25 | 中国南方电网有限责任公司超高压输电公司柳州局 | Tester for testing serial compensation control protector and testing method |
| CN103018707A (en) * | 2012-12-07 | 2013-04-03 | 山西省电力公司晋中供电分公司 | Error propagation method for digital electric energy meter |
| CN103439679A (en) * | 2013-08-28 | 2013-12-11 | 国家电网公司 | Absolute time delay detection device and method of intelligent substation mutual inductor data collection system |
| CN103439679B (en) * | 2013-08-28 | 2015-08-19 | 国家电网公司 | Intelligent substation mutual inductor data collection system absolute time delay detection device and method |
| CN103645457B (en) * | 2013-12-20 | 2016-06-01 | 国家电网公司 | A kind of on-site inspection device for electric energy meter |
| CN103645457A (en) * | 2013-12-20 | 2014-03-19 | 国家电网公司 | On-site inspection device for electric energy meter |
| CN104076319A (en) * | 2014-05-04 | 2014-10-01 | 贵州电力试验研究院 | Online error analysis system of digitized electric energy metering device |
| CN104076319B (en) * | 2014-05-04 | 2015-07-08 | 贵州电力试验研究院 | Online error analysis system of digitized electric energy metering device |
| CN105203984B (en) * | 2014-06-12 | 2017-07-18 | 国网山西省电力公司电力科学研究院 | The wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer |
| CN105319436A (en) * | 2014-06-12 | 2016-02-10 | 国网山西省电力公司电力科学研究院 | Smart station 3/2 wiring bus reactive power checking method based on traditional transformer |
| CN105203984A (en) * | 2014-06-12 | 2015-12-30 | 国网山西省电力公司电力科学研究院 | Intelligent substation 3/2 wiring bus reactive power calibrator based on conventional instrument transformers |
| CN105319436B (en) * | 2014-06-12 | 2017-07-18 | 国网山西省电力公司电力科学研究院 | The wiring bus reactive power rate method of calibration of intelligent station 3/2 based on traditional transformer |
| CN104597424A (en) * | 2015-01-07 | 2015-05-06 | 贵州电力试验研究院 | Verification platform and verification method for electric energy measurement of optical transformer |
| CN104597424B (en) * | 2015-01-07 | 2018-05-22 | 贵州电力试验研究院 | A kind of optical transformer electrical energy measurement verification platform and verification method |
| CN105353331A (en) * | 2015-10-29 | 2016-02-24 | 中国电力科学研究院 | Electronic transformer metering performance detection system and method |
| CN107329104A (en) * | 2017-07-10 | 2017-11-07 | 广西电网有限责任公司电力科学研究院 | A kind of electronic mutual inductor magnitude tracing method and system of meter and composition error |
| CN107589391A (en) * | 2017-07-27 | 2018-01-16 | 武汉尤瑞卡节能科技有限公司 | A kind of methods, devices and systems for detecting electric power meter global error |
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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: STATE ELECTRIC NET CROP. Effective date: 20121022 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121022 Address after: 114002 Anshan South Road, Tiedong District, Liaoning, Shengli Road, No. 33 Patentee after: Anshan Power Supply Company, Liaoning Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Address before: 114002 Anshan South Road, Tiedong District, Liaoning, Shengli Road, No. 33 Patentee before: Anshan Power Supply Company, Liaoning Electric Power Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100428 |