CN105572625A - Reactive electric energy error automatic checking device - Google Patents
Reactive electric energy error automatic checking device Download PDFInfo
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- CN105572625A CN105572625A CN201510929801.0A CN201510929801A CN105572625A CN 105572625 A CN105572625 A CN 105572625A CN 201510929801 A CN201510929801 A CN 201510929801A CN 105572625 A CN105572625 A CN 105572625A
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- electric energy
- error
- energy
- meter
- standard
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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
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention provides a reactive electric energy error automatic checking device. A standard voltage source and a standard current source are respectively connected with a standard electric energy meter. The standard voltage source is connected with a fundamental wave frequency reactive electric energy meter. The standard current source is connected with the fundamental wave frequency reactive electric energy meter. The two paths of electric energy pulse output of the fundamental wave frequency reactive electric energy meter and the two paths of electric energy pulse output of the standard electric energy meter are simultaneously connected with an error calculation and display unit capable of calculating and displaying electric energy error. When active electric energy error of the fundamental wave frequency reactive electric energy meter is checked, fundamental wave frequency reactive electric error is also checked so that efficiency is high and automatic adjustment is performed without influence of waveform distortion of the standard voltage source and the standard current source.
Description
Technical field
The present invention relates to a kind of calibration equipment, particularly a kind of reactive energy error automatic check device simultaneously carrying out the verification of two-way electrical energy pulse.
Background technology
At present, the standard of fundamental frequency reactive energy-meter is promulgated.In the production and debug process of reactive energy-meter, should ensure that meritorious electric energy error is in the limit value of regulation, ensure that reactive energy error is in the limit value of regulation again.But current electric energy meter checking device can only verify a road pulse signal, when test point is more, first to verify the active energy error of reactive energy-meter, then the connecting line on electric energy meter is changed, verify the reactive energy error of reactive energy-meter again, inefficiency, the test duration is long, easily makes mistakes.
Summary of the invention
In order to overcome exist in prior art can only verify the problems such as a road pulse signal, inefficiency, test duration be long, the invention provides a kind of reactive energy error automatic check device simultaneously carrying out the verification of two-way electrical energy pulse, this electric energy error automatic check device can verify two-way electrical energy impulse signals simultaneously, and can the carrying out of Automatic continuous verify.
The technical solution adopted in the present invention is: a kind of reactive energy error automatic check device, comprises standard voltage source part, normalized current source part, standard electric energy meter part and error calculation and display unit.Its improvements are: standard voltage source is connected with standard electric energy meter respectively with normalized current source, described standard voltage source and described fundamental frequency reactive energy list catenation, described normalized current source and described fundamental frequency reactive energy list catenation, the two-way electrical energy pulse of described fundamental frequency reactive energy-meter exports and exports with the two-way electrical energy pulse of standard electric energy meter the error calculation and the display unit that are connected simultaneously and can calculate and show electric energy error.
Further, described error calculation and display unit comprise: carry out signal level conversion and sample circuit respectively to from the two-way electrical energy impulse signals of standard electric energy meter and the two-way electrical energy impulse signals of described fundamental frequency reactive energy-meter, carry out the computing circuit of two-way electric energy error calculating according to sampled result simultaneously.
The invention has the beneficial effects as follows, while the active energy error of verification fundamental frequency reactive energy-meter, carry out the verification of fundamental frequency reactive energy error, efficiency is high, robotization adjusts, not by the impact that described standard voltage source and described normalized current source waveform distort.
accompanying drawing illustrates:
Fig. 1 is the structure principle chart of this device.
embodiment:
For a better understanding of the present invention, provide preferred embodiment below and be described with reference to the accompanying drawings.
See Fig. 1, this device comprises: standard voltage source is connected with standard electric energy meter respectively with normalized current source, standard voltage source and fundamental frequency reactive energy list catenation, normalized current source and fundamental frequency reactive energy list catenation, the two-way electrical energy pulse of fundamental frequency reactive energy-meter exports and exports with the two-way electrical energy pulse of standard electric energy meter the error calculation and the display unit that are connected simultaneously and can calculate and show electric energy error.Error calculation and display unit pain are crossed RS232 communication interface and are connected with PC.
Signal level is had to change and sample circuit in error calculation and display unit, independent sample can be carried out respectively to from the two-way electrical energy impulse signals of standard electric energy meter and the two-way electrical energy impulse signals of fundamental frequency reactive energy-meter, and carry out the computing of two-way electric energy error calculating according to sampled result simultaneously, electric energy error can be presented in the LCD screen of error calculation and display unit, the PC pain of connection also can be adopted to cross RS232 communication interface and read two-way electric energy error.
Error checking arrangement of the present invention, can verify reactive energy error and active energy error simultaneously, and result be shown simultaneously, and be read out by PC, checking time is short, and efficiency is high.
These are only embodiments of the invention, and be not used in limit value the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improves, all should be included within protection scope of the present invention.
Claims (2)
1. a reactive energy error automatic check device, it is characterized in that, comprise: standard voltage source is connected with standard electric energy meter respectively with normalized current source, described standard voltage source and described fundamental frequency reactive energy list catenation, described normalized current source and described fundamental frequency reactive energy list catenation, the two-way electrical energy pulse of described fundamental frequency reactive energy-meter exports and exports with the two-way electrical energy pulse of standard electric energy meter the error calculation and the display unit that are connected simultaneously and can calculate and show electric energy error.
2. reactive energy error automatic check device according to claim 1, it is characterized in that, described error calculation and display unit comprise: carry out signal level conversion and sample circuit respectively to from the two-way electrical energy impulse signals of standard electric energy meter and the two-way electrical energy impulse signals of described fundamental frequency reactive energy-meter, carry out the computing circuit of two-way electric energy error calculating according to sampled result simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929801.0A CN105572625A (en) | 2015-12-15 | 2015-12-15 | Reactive electric energy error automatic checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929801.0A CN105572625A (en) | 2015-12-15 | 2015-12-15 | Reactive electric energy error automatic checking device |
Publications (1)
| Publication Number | Publication Date |
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| CN105572625A true CN105572625A (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510929801.0A Pending CN105572625A (en) | 2015-12-15 | 2015-12-15 | Reactive electric energy error automatic checking device |
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| CN (1) | CN105572625A (en) |
Citations (8)
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|---|---|---|---|---|
| CN101718853A (en) * | 2009-11-20 | 2010-06-02 | 深圳市科陆电子科技股份有限公司 | Detecting device and detecting method of single-phase double-loop metering electric energy meter |
| CN102087352A (en) * | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Three-phase intelligent watt-hour meter inspection device and method |
| CN202083790U (en) * | 2011-01-13 | 2011-12-21 | 中国电力科学研究院 | Sinusoidal reactive power calibration system |
| CN202330695U (en) * | 2011-10-28 | 2012-07-11 | 宁波伟吉电力科技有限公司 | Electric energy meter calibrating device capable of conducting dual-track error calculation |
| CN203117415U (en) * | 2012-12-19 | 2013-08-07 | 广东电网公司电力科学研究院 | Parallel detection system for active power errors and reactive power errors of electric energy meter |
| GB2504899A (en) * | 2011-04-22 | 2014-02-12 | Sichuan Elec Power Res Inst | Field integral detecting system of three-phase electric energy measuring system of electric distribution network |
| CN204009048U (en) * | 2014-06-12 | 2014-12-10 | 国网山西省电力公司电力科学研究院 | Intelligent station 3/2 wiring bus reactive power tester based on traditional mutual inductor |
| CN205643680U (en) * | 2015-12-15 | 2016-10-12 | 国网辽宁省电力有限公司大连供电公司 | Automatic calibration equipment of reactive energy error |
-
2015
- 2015-12-15 CN CN201510929801.0A patent/CN105572625A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718853A (en) * | 2009-11-20 | 2010-06-02 | 深圳市科陆电子科技股份有限公司 | Detecting device and detecting method of single-phase double-loop metering electric energy meter |
| CN202083790U (en) * | 2011-01-13 | 2011-12-21 | 中国电力科学研究院 | Sinusoidal reactive power calibration system |
| CN102087352A (en) * | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Three-phase intelligent watt-hour meter inspection device and method |
| GB2504899A (en) * | 2011-04-22 | 2014-02-12 | Sichuan Elec Power Res Inst | Field integral detecting system of three-phase electric energy measuring system of electric distribution network |
| CN202330695U (en) * | 2011-10-28 | 2012-07-11 | 宁波伟吉电力科技有限公司 | Electric energy meter calibrating device capable of conducting dual-track error calculation |
| CN203117415U (en) * | 2012-12-19 | 2013-08-07 | 广东电网公司电力科学研究院 | Parallel detection system for active power errors and reactive power errors of electric energy meter |
| CN204009048U (en) * | 2014-06-12 | 2014-12-10 | 国网山西省电力公司电力科学研究院 | Intelligent station 3/2 wiring bus reactive power tester based on traditional mutual inductor |
| CN205643680U (en) * | 2015-12-15 | 2016-10-12 | 国网辽宁省电力有限公司大连供电公司 | Automatic calibration equipment of reactive energy error |
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Application publication date: 20160511 |
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| WD01 | Invention patent application deemed withdrawn after publication |