CN204009056U - A kind of three-phase standard scale - Google Patents
A kind of three-phase standard scale Download PDFInfo
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- CN204009056U CN204009056U CN201420481655.0U CN201420481655U CN204009056U CN 204009056 U CN204009056 U CN 204009056U CN 201420481655 U CN201420481655 U CN 201420481655U CN 204009056 U CN204009056 U CN 204009056U
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Abstract
The utility model is applicable to a kind of technical field of electric energy meter, a kind of three-phase standard scale is disclosed, comprise communication interface modules, DSP electric energy metering module and electrical energy pulse output module, DSP electric energy metering module comprises electric energy processor and the signal processor for the treatment of three-phase electric energy signal, electric energy processor and signal processor interconnect, and communication interface modules interconnects master control system and signal processor.A kind of three-phase standard scale that the utility model provides, simple in structure, it is the electric power signal of A phase, B phase and C phase by three-phase electric energy signal distinguishing, and voltage signal and current signal are processed simultaneously, be integrated into single-phase electric energy signal and transfer to DSP electric energy metering module, make three-phase standard scale can determine in real time the needed separate electrical energy pulse of output, and omnidistance by master control system control that can man-machine interaction, improve the result of use of three-phase standard scale, thereby improved combination property and the market competitiveness of electric energy meter.
Description
[technical field]
The utility model relates to a kind of electric energy meter, particularly a kind of three-phase standard scale.
[background technology]
More swift and violent along with electric energy metrical industry market development, requirement for the standard electric energy meter of three-phase electric energy signal source is also more and more higher, outside guarantee is measured accurately and detected three-phase electric energy signal, also require three-phase standard scale self to there is certain processing power.The research and development of some electric energy meters, type approval test and some other such as alternate impact in, need three-phase standard scale to export current test and specify separate electrical energy pulse.
Now three-phase standard scale is on the market split as ac voltage signal and ac current signal by three-phase electric energy signal mostly, then respectively ac voltage signal and ac current signal is processed and is drawn standard electric energy impulse.But said method just cannot be suitable for for the test that only needs single-phase electric energy pulse.
[utility model content]
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of three-phase standard scale is provided, and it is intended to the technical matters that solves three-phase standard scale unreasonable structure of the prior art, cannot isolate single-phase electric energy signal.
For achieving the above object, the utility model proposes a kind of three-phase standard scale, comprise communication interface modules, DSP electric energy metering module and electrical energy pulse output module, described DSP electric energy metering module comprises the signal processor for the treatment of the electric energy processor of three-phase electric energy signal and the control signal that transmits for the treatment of master control system, described electric energy processor and signal processor interconnect, described communication interface modules interconnects master control system and signal processor, the output terminal of described electric energy processor is connected with electrical energy pulse output module, described electrical energy pulse output module is to extraneous outputting standard pulse signal, also comprise for by three-phase electric energy signal A phase, the A phase sampler module that B phase makes a distinction mutually with C, B phase sampler module and C phase sampler module, described A phase sampler module, B phase sampler module and C phase sampler module are equipped with single-phase electric energy signal output interface, described electric energy processor and A phase sampler module, the single-phase electric energy signal output interface of B phase sampler module and C phase sampler module all connects.
As preferably, described A phase sampler module, B phase sampler module and C phase sampler module are also all provided with voltage interface, electric current input interface and electric current output interface, described voltage interface receives respectively and transmits the single-phase voltage signal of A phase, B phase and C phase, the single-phase current that described electric current input interface receives respectively A phase, B phase and C phase receives signal, and described electric current output interface is exported respectively the single-phase current output signal of A phase, B phase and C phase.
As preferably, described communication interface modules comprises RS232 communication interface.
As preferably, described master control system be can man-machine interaction computing machine, described computing machine comprises display screen.
The beneficial effects of the utility model: compared with prior art, a kind of three-phase standard scale that the utility model provides, simple in structure, be A phase by three-phase electric energy signal distinguishing, the electric power signal of B phase and C phase, and voltage signal and current signal are processed simultaneously, be integrated into single-phase electric energy signal and transfer to DSP electric energy metering module, make three-phase standard scale can determine in real time the needed separate electrical energy pulse of output, and omnidistance by master control system control that can man-machine interaction, improve the result of use of three-phase standard scale, thereby improve combination property and the market competitiveness of electric energy meter.
Feature of the present utility model and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[brief description of the drawings]
Fig. 1 is the structural representation of the utility model embodiment.
[embodiment]
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below by accompanying drawing and embodiment, the utility model is further elaborated.But should be appreciated that, specific embodiment described herein only, in order to explain the utility model, is not limited to scope of the present utility model.In addition, in the following description, omitted the description to known features and technology, to avoid unnecessarily obscuring concept of the present utility model.
Consult Fig. 1, the utility model embodiment provides a kind of three-phase standard scale, comprise communication interface modules, DSP electric energy metering module and electrical energy pulse output module, DSP electric energy metering module comprises the signal processor for the treatment of the electric energy processor of three-phase electric energy signal and the control signal 5 that transmits for the treatment of master control system, electric energy processor and signal processor interconnect, communication interface modules interconnects master control system and signal processor, the output terminal of electric energy processor is connected with electrical energy pulse output module, electrical energy pulse output module is to extraneous outputting standard pulse signal 1, also comprise for by three-phase electric energy signal A phase, the A phase sampler module that B phase makes a distinction mutually with C, B phase sampler module and C phase sampler module, A phase sampler module, B phase sampler module and C phase sampler module are equipped with single-phase electric energy signal output interface, electric energy processor and A phase sampler module, the single-phase electric energy signal output interface of B phase sampler module and C phase sampler module all connects.In embodiment of the present utility model, first three-phase electric energy signal is divided into three single-phase electric power signal, then the single-phase electric energy signal that these three electric power signal are converted into digital form enters electric energy processor, is processed into full sized pules signal 1 exports by electric energy processor.Because master control system can be controlled the separate pulse signal of electric energy processor output appointment in real time, therefore, embodiment the best of the present utility model is applicable in three-phase electric energy meter calibration equipment at the trial.
Particularly, A phase sampler module, B phase sampler module and C phase sampler module are also all provided with voltage interface, electric current input interface and electric current output interface, voltage interface receives respectively and transmits the single-phase voltage signal 2 of A phase, B phase and C phase, the single-phase current that electric current input interface receives respectively A phase, B phase and C phase receives signal 3, and electric current output interface is exported respectively the single-phase current output signal 4 of A phase, B phase and C phase.In this kind of structure, voltage signal and current signal transfer to the sampling module of three-phase simultaneously and process, and are integrated into single-phase electric energy signal and transfer to DSP electric energy metering module.
Further, communication interface modules comprises RS232 communication interface.
Wherein, master control system be can man-machine interaction computing machine, computing machine comprises display screen.Certainly, master control system can also be other equipment that can communicate by letter, and for example industrial computer, in embodiment of the present utility model, in order better to realize technical purpose of the present utility model, a computing machine that electric power signal can be shown is preferred embodiment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace or improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a three-phase standard scale, comprise communication interface modules, DSP electric energy metering module and electrical energy pulse output module, described DSP electric energy metering module comprises the signal processor for the treatment of the electric energy processor of three-phase electric energy signal and the control signal (5) that transmits for the treatment of master control system, described electric energy processor and signal processor interconnect, described communication interface modules interconnects master control system and signal processor, the output terminal of described electric energy processor is connected with electrical energy pulse output module, described electrical energy pulse output module is to extraneous outputting standard pulse signal (1), it is characterized in that: also comprise for by three-phase electric energy signal A phase, the A phase sampler module that B phase makes a distinction mutually with C, B phase sampler module and C phase sampler module, described A phase sampler module, B phase sampler module and C phase sampler module are equipped with single-phase electric energy signal output interface, described electric energy processor and A phase sampler module, the single-phase electric energy signal output interface of B phase sampler module and C phase sampler module all connects.
2. a kind of three-phase standard scale as claimed in claim 1, it is characterized in that: described A phase sampler module, B phase sampler module and C phase sampler module are also all provided with voltage interface, electric current input interface and electric current output interface, described voltage interface receives respectively and transmits the single-phase voltage signal (2) of A phase, B phase and C phase, the single-phase current that described electric current input interface receives respectively A phase, B phase and C phase receives signal (3), and described electric current output interface is exported respectively the single-phase current output signal (4) of A phase, B phase and C phase.
3. a kind of three-phase standard scale as claimed in claim 1 or 2, is characterized in that: described communication interface modules comprises RS232 communication interface.
4. a kind of three-phase standard scale as claimed in claim 1 or 2, is characterized in that: described master control system be can man-machine interaction computing machine, described computing machine comprises display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481655.0U CN204009056U (en) | 2014-08-25 | 2014-08-25 | A kind of three-phase standard scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481655.0U CN204009056U (en) | 2014-08-25 | 2014-08-25 | A kind of three-phase standard scale |
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| Publication Number | Publication Date |
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| CN204009056U true CN204009056U (en) | 2014-12-10 |
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| CN201420481655.0U Expired - Fee Related CN204009056U (en) | 2014-08-25 | 2014-08-25 | A kind of three-phase standard scale |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501762A (en) * | 2016-12-30 | 2017-03-15 | 国网山东省电力公司电力科学研究院 | The device and method of through type or jaw type calibrating is carried out to on-site calibrator |
-
2014
- 2014-08-25 CN CN201420481655.0U patent/CN204009056U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501762A (en) * | 2016-12-30 | 2017-03-15 | 国网山东省电力公司电力科学研究院 | The device and method of through type or jaw type calibrating is carried out to on-site calibrator |
| CN106501762B (en) * | 2016-12-30 | 2019-04-09 | 国网山东省电力公司电力科学研究院 | The device and method of through type or jaw type calibrating is carried out to on-site calibrator |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20190825 |