CN205643680U - Automatic calibration equipment of reactive energy error - Google Patents
Automatic calibration equipment of reactive energy error Download PDFInfo
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- CN205643680U CN205643680U CN201521039181.5U CN201521039181U CN205643680U CN 205643680 U CN205643680 U CN 205643680U CN 201521039181 U CN201521039181 U CN 201521039181U CN 205643680 U CN205643680 U CN 205643680U
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- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000012795 verification Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model provides an automatic calibration equipment of reactive energy error. Include: the standard voltage source is connected with standard electric energy meter respectively with the standard current source, the standard voltage source with fundamental frequency var -hour meter connects, the standard current source with fundamental frequency var -hour meter connects, the error calculation and the display element that can calculate and show the electric energy error is connected simultaneously with standard electric energy meter's two way electric energy pulse output to fundamental frequency var -hour meter's two way electric energy pulse output. The utility model discloses in check -up fundamental frequency var -hour meter's meritorious electric energy error, carry out the check -up of fundamental frequency reactive energy error, efficient, automatic adjustment does not receive the standard voltage source with standard current source wave distortion's influence.
Description
Technical field
This utility model relates to a kind of calibration equipment, a kind of reactive energy error automatic check device simultaneously carrying out two-way electrical energy pulse verification.
Background technology
At present, the standard of fundamental frequency reactive energy-meter has been promulgated.During the production and debugging of reactive energy-meter, should ensure that active energy error, in the limit value of regulation, ensures 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, in the case of 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 testing time is long, easily makes mistakes.
Summary of the invention
The problems such as a road pulse signal, inefficiency, testing time length can only be verified present in prior art to overcome, this utility model provides a kind of reactive energy error automatic check device simultaneously carrying out two-way electrical energy pulse verification, 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.
This utility model be the technical scheme is that a kind of reactive energy error automatic check device, including standard voltage source part, normalized current source part, standard electric energy meter part and Error Calculation and display unit.It thes improvement is that: standard voltage source is connected with standard electric energy meter respectively with normalized current source, described standard voltage source is connected with described fundamental frequency reactive energy-meter, described normalized current source is connected with described fundamental frequency reactive energy-meter, and the two-way electrical energy pulse output of described fundamental frequency reactive energy-meter is simultaneously connected with, with the two-way electrical energy pulse output of standard electric energy meter, Error Calculation and the display unit that can calculate and show electric energy error.
Further, described Error Calculation and display unit include: 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 beneficial effects of the utility model are, while the active energy error of verification fundamental frequency reactive energy-meter, carrying out the verification of fundamental frequency reactive energy error, efficiency is high, automatization adjusts, and is not distorted affected by described standard voltage source and described normalized current source waveform.
Accompanying drawing illustrates:
Fig. 1 is the structure principle chart of this device.
Detailed description of the invention:
In order to be better understood from this utility model, preferred embodiment is given below and is described with reference to the accompanying drawings.
See Fig. 1, this device includes: standard voltage source is connected with standard electric energy meter respectively with normalized current source, standard voltage source is connected with fundamental frequency reactive energy-meter, normalized current source is connected with fundamental frequency reactive energy-meter, and the two-way electrical energy pulse output of fundamental frequency reactive energy-meter is simultaneously connected with, with the two-way electrical energy pulse output of standard electric energy meter, Error Calculation and the display unit that 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 conversion and sample circuit is had 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 shown on the LCD screen of Error Calculation and display unit, it is possible to use the PC pain connected to cross RS232 communication interface and read two-way electric energy error.
Error checking arrangement of the present utility model, can be verified reactive energy error and active energy error simultaneously, and result be shown simultaneously, and be read out by PC, and checking time is short, and efficiency is high.
These are only embodiment of the present utility model, be not used to limit value this utility model, all within spirit of the present utility model and principle, any amendment of being made, equivalent, improvement etc., within should be included in protection domain of the present utility model.
Claims (2)
1. a reactive energy error automatic check device, it is characterized in that, including: standard voltage source is connected with standard electric energy meter respectively with normalized current source, described standard voltage source is connected with fundamental frequency reactive energy-meter, described normalized current source is connected with fundamental frequency reactive energy-meter, and the two-way electrical energy pulse output of described fundamental frequency reactive energy-meter is simultaneously connected with, with the two-way electrical energy pulse output of standard electric energy meter, Error Calculation and the display unit that can calculate and show electric energy error.
Reactive energy error automatic check device the most according to claim 1, it is characterized in that, described Error Calculation and display unit include: 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 |
|---|---|---|---|
| CN201521039181.5U CN205643680U (en) | 2015-12-15 | 2015-12-15 | Automatic calibration equipment of reactive energy error |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521039181.5U CN205643680U (en) | 2015-12-15 | 2015-12-15 | Automatic calibration equipment of reactive energy error |
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| Publication Number | Publication Date |
|---|---|
| CN205643680U true CN205643680U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521039181.5U Active CN205643680U (en) | 2015-12-15 | 2015-12-15 | Automatic calibration equipment of reactive energy error |
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| CN (1) | CN205643680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572625A (en) * | 2015-12-15 | 2016-05-11 | 国网辽宁省电力有限公司大连供电公司 | Reactive electric energy error automatic checking device |
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2015
- 2015-12-15 CN CN201521039181.5U patent/CN205643680U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572625A (en) * | 2015-12-15 | 2016-05-11 | 国网辽宁省电力有限公司大连供电公司 | Reactive electric energy error automatic checking device |
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