CN106908751A - It is a kind of can straightened up in place multifunctional intellectual electric instrument - Google Patents
It is a kind of can straightened up in place multifunctional intellectual electric instrument Download PDFInfo
- Publication number
- CN106908751A CN106908751A CN201710079299.8A CN201710079299A CN106908751A CN 106908751 A CN106908751 A CN 106908751A CN 201710079299 A CN201710079299 A CN 201710079299A CN 106908751 A CN106908751 A CN 106908751A
- Authority
- CN
- China
- Prior art keywords
- input signal
- special metering
- transformer
- voltage
- straightened
- Prior art date
Links
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000000034 methods Methods 0.000 claims description 3
- 238000004164 analytical calibration Methods 0.000 abstract description 2
- 238000010586 diagrams Methods 0.000 description 2
- 238000005516 engineering processes Methods 0.000 description 2
- 230000001131 transforming Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the preceding groups
- G01R35/04—Testing or calibrating of apparatus covered by the preceding groups of instruments for measuring time integral of power or current
Abstract
Description
Technical field
The present invention relates to a kind of electric instrument, specifically it is a kind of can straightened up in place multifunctional intellectual electric instrument.
Background technology
Existing intelligent electric instrument carries out calibration when calibration dispatch from the factory using standard signal source, and multi-functional intelligence The electric current input of energy electric instrument is general all in the range of 5A, and voltage sample also has the scope of a bit, when actually used, user The current transformer or voltage transformer of an external rated transformation ratio are also needed to, by actual current transformation to 5A scopes, actual electricity Buckling is changed to interior in the input range of instrument permission, due to the degree of accuracy of transformer for accessing and angular difference etc., will cause actual When actually used, the precision reduction of metering, it is impossible to meet actual application requirement.
The content of the invention
It is an object of the invention to provide a kind of simple structure, it is easy to use can straightened up in place multifunctional intellectual electric power Instrument, to solve the problems, such as to be proposed in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
It is a kind of can straightened up in place multifunctional intellectual electric instrument, including display with key-press module, communication module, storage chip, Input/output interface circuit, the special metering IC A, the special metering IC B, voltage x current input signal processing circuit A and voltage Current input signal process circuit B, it is defeated with key-press module, communication module, storage chip, input that the CPU connects display respectively Outgoing interface circuit, the special metering IC A and the special metering IC B, the special metering IC A are also connected with voltage x current input signal Reason circuit A, the special metering IC B are also connected with voltage x current input signal processing circuit B, and input signal processing circuit A is also connected with Transformer A, transformer A are also connected with external voltage current input module, and input signal processing circuit B is also connected with transformer B, mutual inductance Device B is also connected with external voltage current input module.
As preferred scheme of the invention：The CPU is single-chip microcomputer.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention can straightened up in place multifunctional intellectual electric power instrument Table can after the curtage transformer that Pan Guichang installs external, carry out the examination and test of products before once Pan Guichang dispatches from the factory and Instrument calibration work, improve due to external transformer the degree of accuracy and phase angle the problems such as, brought measuring accuracy reduction Problem.
Brief description of the drawings
Fig. 1 is system architecture diagram of the invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Refer to Fig. 1, it is a kind of can straightened up in place multifunctional intellectual electric instrument, including display and key-press module, communication At module, storage chip, input/output interface circuit, the special metering IC A, the special metering IC B, voltage x current input signal Reason circuit A and voltage x current input signal processing circuit B, the CPU connect display and key-press module, communication module, deposit respectively Storage chip, input/output interface circuit, the special metering IC A and the special metering IC B, the special metering IC A are also connected with voltage Current input signal process circuit A, the special metering IC B is also connected with voltage x current input signal processing circuit B, at input signal Reason circuit A is also connected with transformer A, and transformer A is also connected with external voltage current input module, and input signal processing circuit B also connects Transformer B is met, transformer B is also connected with external voltage current input module.
CPU is single-chip microcomputer.
Operation principle of the invention is：Theory diagram of the invention is as shown in figure 1, have two sets in the intelligent electric instrument The special metering IC, and according to the practical application of user, there is provided standard set electric current and voltage transformer are good in user installation After external circuitses, the current transformer or voltage transformer of user's offer are input to simultaneously using certain voltage or electric current, with On curtage transformer after correction, electric instrument is set and is in live calibration pattern, instrument will be according to special measuring core Data obtained by piece 2, correct the relevant parameter of special chip 1, complete calibration work, and correction is brought by external transformer Certainty of measurement reduction problem.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079299.8A CN106908751A (en) | 2017-02-14 | 2017-02-14 | It is a kind of can straightened up in place multifunctional intellectual electric instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079299.8A CN106908751A (en) | 2017-02-14 | 2017-02-14 | It is a kind of can straightened up in place multifunctional intellectual electric instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106908751A true CN106908751A (en) | 2017-06-30 |
Family
ID=59209181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710079299.8A CN106908751A (en) | 2017-02-14 | 2017-02-14 | It is a kind of can straightened up in place multifunctional intellectual electric instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106908751A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202649318U (en) * | 2012-04-18 | 2013-01-02 | 江阴东瑞电气有限公司 | Multifunctional electric power meter with voltage phase sequence detection function |
| CN102981047A (en) * | 2012-12-20 | 2013-03-20 | 贝克电气（江苏）有限公司 | Multifunctional digital meter |
| CN202975314U (en) * | 2012-12-07 | 2013-06-05 | 浙江涵普电力科技有限公司 | Field calibration instrument of digital electric energy meter |
| CN106093841A (en) * | 2016-08-25 | 2016-11-09 | 海盐星创电子有限公司 | A kind of hand-held electric energy meter on-site calibrator |
-
2017
- 2017-02-14 CN CN201710079299.8A patent/CN106908751A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202649318U (en) * | 2012-04-18 | 2013-01-02 | 江阴东瑞电气有限公司 | Multifunctional electric power meter with voltage phase sequence detection function |
| CN202975314U (en) * | 2012-12-07 | 2013-06-05 | 浙江涵普电力科技有限公司 | Field calibration instrument of digital electric energy meter |
| CN102981047A (en) * | 2012-12-20 | 2013-03-20 | 贝克电气（江苏）有限公司 | Multifunctional digital meter |
| CN106093841A (en) * | 2016-08-25 | 2016-11-09 | 海盐星创电子有限公司 | A kind of hand-held electric energy meter on-site calibrator |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170630 |