CN206348450U - A kind of gate energy meter - Google Patents
A kind of gate energy meter Download PDFInfo
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- CN206348450U CN206348450U CN201720031397.XU CN201720031397U CN206348450U CN 206348450 U CN206348450 U CN 206348450U CN 201720031397 U CN201720031397 U CN 201720031397U CN 206348450 U CN206348450 U CN 206348450U
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- energy meter
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Abstract
The utility model discloses a kind of gate energy meter, it includes power supply, resistance pressure-dividing network in table, current transformer, AD converter, DSP, CPU, memory, liquid crystal display, real-time clock, alarm unit, infrared electro interface and communication interface in table；Wherein, power supply is connected with AD converter, DSP and CPU respectively；Resistance pressure-dividing network and Biao Nei current transformers are connected with AD converter respectively in table；AD converter is connected with DSP, and DSP is connected with CPU；Memory, liquid crystal display, real-time clock, alarm unit, infrared electro interface and communication interface are connected with CPU respectively；Light emitting diode is also associated with DSP.The utility model has high accuracy and the stability measured for a long time, and its all parts uses modularized design；The utility model can access three-phase and four-line or three-phase three-wire system power network, the voltage range with relative broad range through voltage, current transformer.In addition, the utility model has also carried out reasonable Arrangement to all parts of gate energy meter.
Description
Technical field
The utility model is related to a kind of energy metering device, more particularly to a kind of gate energy meter.
Background technology
Energy metering device includes gate energy meter, voltage transformer, current transformer and secondary circuit etc..Wherein, close
Mouthful electric energy meter refers to operate in electricity power enterprise's online, transregional interconnection, province's net interconnection and the critical point electric energy meter such as off line inside the province
The electric energy meter in device is measured, for the examination of trade settlement and internal economies index, is played in the electric energy of whole power network is calculated
Important function.The operation of gate energy meter and power system operating mode are closely related.
With the foundation and operation of electricity market, increasing gate energy meter is used for charging, load dispatch control system
It is integrated, so propose greater demand to the function of gate energy meter, running status is exactly wherein one of critical function.Run shape
Built in diagnostics of the state including gate energy meter, the transformer secondary circuit being attached thereto diagnose, exchange feelings with data among systems
Condition is diagnosed and the part of operation of power networks state four, is to diagnose one of important tool that electric power meter is normally run.It is existing to close
Mouthful electric energy meter Shortcomings, the condition diagnosing amount such as decompression, load curve, operation and battery in this respect.In addition, critical point is electric
Energy table differing on electric energy meter technical indicator, function, communication mode, can also work to China's voltameter and bring inconvenience.
Utility model content
The purpose of this utility model is to propose a kind of gate energy meter, and its is feature-rich, has available for metering and record
The instantaneous flows such as work(, idle, apparent electric flux, electric energy needs and voltage x current.
To achieve these goals, the utility model is adopted the following technical scheme that：
Resistance pressure-dividing network in a kind of gate energy meter, including power supply, table, current transformer in table, AD converter, DSP,
CPU, memory, liquid crystal display, real-time clock, alarm unit, infrared electro interface and communication interface；Wherein, power supply is distinguished
It is connected with AD converter, DSP and CPU；Resistance pressure-dividing network and Biao Nei current transformers are connected with AD converter respectively in table；AD
Converter is connected with DSP, and DSP is connected with CPU；Memory, liquid crystal display, real-time clock, alarm unit, infrared electro interface
It is connected respectively with CPU with communication interface；Light emitting diode is also associated with DSP；The communication interface is connect using RS232 communications
Mouth or RS485 communication interfaces；The gate energy meter also includes voltage network in housing, power supply, table, Current Mutual Inductance in table
Device, AD converter, DSP, CPU, memory and real-time clock are respectively positioned on case inside；Liquid crystal display, alarm unit, infrared light
Electrical interface, communication interface and light emitting diode are arranged on the front panel of housing, and are arranged as follows：Liquid crystal
Show that device is located at the upper strata central region of front panel, light emitting diode there are two, one of them is located at the left side of liquid crystal display,
Another is located at the right side of liquid crystal display；Infrared electro interface and communication interface are respectively positioned at the middle level left side area of front panel
Domain and middle level right side area；Alarm unit is located at lower floor's left field of front panel, in lower floor's right side area of front panel
Provided with the power switch being connected with power supply.
Preferably, the sample frequency of the AD converter is 4kHz；Aliasing filter is also associated with the AD converter.
Preferably, hook is installed on the rear side panel of housing；Pedestal is connected with the bottom of housing, on pedestal
Each corner location is provided with bolt hole.
The utility model has the following advantages that：
Gate energy meter in the utility model has high accuracy and the stability measured for a long time, and its all parts is used
Modularized design；The utility model can access three-phase and four-line or three-phase three-wire system power network through voltage, current transformer, with wider
The voltage range of scope.In addition, the utility model has also carried out reasonable Arrangement, user to all parts of gate energy meter
Just.The utility model can be used for measuring and record active and reactive, apparent electric flux, electric energy needs and voltage x current etc. instantaneously
Amount.
Brief description of the drawings
Fig. 1 is a kind of structural representation of gate energy meter in the utility model；
Fig. 2 is a kind of structural representation of gate energy meter in the utility model；
Fig. 3 is the structural representation of gate energy meter supervising device in the utility model；
Wherein, current transformer in resistance pressure-dividing network in 1- power supplys, 2- tables, 3- tables, 4-AD converters, 5-DSP, 6-
CPU, 7- memory, 8- liquid crystal displays, 9- real-time clocks, 10- alarm units, 11- infrared electro interfaces, 12- communication interfaces,
13- light emitting diodes, 14- housings, 15- power switches, 16- hooks, 17- pedestals, 18- main website servers, 19- industrial computers, 20-
Gate energy meter apparatus for evaluating, 21- data acquisition units, 22- gate energy meters, 23-PT collectors, 24-PC collectors.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the utility model：
With reference to shown in Fig. 1, resistance pressure-dividing network 2 in a kind of gate energy meter, including power supply 1, table, current transformer in table
3rd, AD converter 4, DSP5, CPU6, memory 7, liquid crystal display 8, real-time clock 9, alarm unit 10, infrared electro interface 11
With communication interface 12.Power supply 1 is connected with AD converter 4, DSP5 and CPU6 respectively.
Resistance pressure-dividing network 2 is based on current transformer 3 in three precision resistances, table and passes through electronic circuit and additional benefit in table
Repay coil to compensate, to eliminate the influence that nonlinear magnetization characteristic is brought.
Specifically, resistance pressure-dividing network 2 and Biao Nei current transformers 3 are connected with AD converter 4 respectively in table.
AD converter 4 can connect three pairs of signals, and each pair signal includes a voltage signal and a current signal.
The sample frequency of AD converter 4 is 4kHz, 16 resolution capabilities.
In addition, aliasing filter is also associated with AD converter 4, to eliminate unwanted alias frequency before sampling
Rate.
AD converter is connected by spi bus with DSP5, and the signal from AD converter is transferred to via spi bus
DSP5, DSP carry out the calculating of electric flux, electric energy requirement, frequency, power grid quality parameter etc..
In addition, DSP is also connected with CPU6 by spi bus.DSP is per second to reach CPU6 by measured data.
CPU6 also respectively with memory 7, liquid crystal display 8, real-time clock 9, alarm unit 10, infrared electro interface 11 and
Communication interface 12 is connected.Wherein：Infrared electro interface 11 is a standarized component of gate energy meter, and light can be fixed in this position
Dateline, setting and digital independent for gate energy meter.
Available USB interface infrared photoelectron head can be supported to be read out ammeter in the case of power free and set.
Communication interface uses RS232 communication interfaces or RS485 communication interfaces.
Light emitting diode 13 is also associated with DSP, light emitting diode there are two, test and school for gate energy meter
Test.The flicker frequency of light emitting diode 13 tries to please the size of load and the LED constants of meter.
If load is 0 less than the startup load value or load value of gate energy meter, light emitting diode 13 keeps Chang Liang.
In addition, auxiliary terminal block is also associated with DSP, to be used as extension.
Above-mentioned all parts in the utility model use modularized design, and part replacement is convenient, are easy to by critical point electricity
The CPU6 identifications of energy table, when some parts damages, have no effect on the normal of miscellaneous part and use.
The utility model can be through the current transformer in three-phase and four-line or three-phase three-wire system power network or voltage, current transformer
Access, can also be accessed by the Aaron modes of connection of voltage, current transformer.
As shown in Fig. 2 the gate energy meter in the utility model also includes housing 14.Wherein：
Voltage network 2 in power supply 1, table, current transformer 3, AD converter 4, DSP5, CPU6, the and of memory 7 in table
Real-time clock 9 is respectively positioned on the inner side of housing 14.
Liquid crystal display 8, alarm unit 10, infrared electro interface 11, communication interface 12 and light emitting diode 13 are respectively provided with
Arranged on the front panel of housing 14, and as follows：
Liquid crystal display 8 is located at the upper strata a central regions of front panel, and light emitting diode 13 has two, one of position
In the left side of liquid crystal display 8, another is located at the right side of liquid crystal display 8；12 points of infrared electro interface 11 and communication interface
Not Wei Yu front panel middle level b left fields and middle level b right side areas；The lower floor c that alarm unit 10 is located at front panel is left
Side region, the power switch 15 being connected with power supply is provided with lower floor's c right side areas of front panel.
Pass through above-mentioned design so that all parts connection and reasonable arrangement of gate energy meter in the utility model, it is easy to use.
In addition, being provided with hook 16 on the rear side panel of housing 14；Pedestal 17 is connected with the bottom of housing 14, in base
Each corner location on seat 17 is provided with bolt hole.
Pass through above-mentioned design so that the utility model can not only hang on the wall but also can be placed on level table.
In addition, the utility model also proposes a kind of gate energy meter monitoring device on this basis.
As shown in figure 3, gate energy meter supervising device, including main website server 18, if being connected with main website server
Dry industrial computer, such as industrial computer 19.Multiple gate energy meter apparatus for evaluating 20 are connected with each industrial computer.
Correspondence is connected with a data acquisition unit 21 on each gate energy meter apparatus for evaluating 20.
Several gate energy meters 22 are connected with each data acquisition unit 21.Can be simultaneously by data acquisition unit 21
Gather the data of multiple gate energy meters 22.The data collected are uploaded to critical point electric energy apparatus for evaluating 20 by data acquisition unit 21
On, it is monitored by the running status of 20 pairs of each gate energy meters of critical point electric energy apparatus for evaluating.
Gate energy meter apparatus for evaluating 20 in the utility model can use prior art.
In addition, PT collectors 23 and CT collectors 24 have been also respectively connected with each gate energy meter apparatus for evaluating 20,
To realize monitoring of the gate energy meter apparatus for evaluating 20 to PT, CT.
Certainly, described above is only preferred embodiment of the present utility model, and the utility model is not limited to enumerate above-mentioned
Embodiment, it should be noted that any those skilled in the art are under the teaching of this specification, and that is made is all etc.
With replacement, obvious variant, all fall within the essential scope of this specification, ought to be by protection of the present utility model.
Claims (3)
1. a kind of gate energy meter, it is characterised in that turn including current transformer, AD in resistance pressure-dividing network in power supply, table, table
Parallel operation, DSP, CPU, memory, liquid crystal display, real-time clock, alarm unit, infrared electro interface and communication interface；Wherein,
Power supply is connected with AD converter, DSP and CPU respectively；In table resistance pressure-dividing network and Biao Nei current transformers respectively with AD conversion
Device is connected；AD converter is connected with DSP, and DSP is connected with CPU；It is memory, liquid crystal display, real-time clock, alarm unit, red
Outer optic electric interface and communication interface are connected with CPU respectively；Light emitting diode is also associated with DSP；The communication interface is used
RS232 communication interfaces or RS485 communication interfaces；The gate energy meter also includes housing, voltage network in power supply, table,
Current transformer, AD converter, DSP, CPU, memory and real-time clock are respectively positioned on case inside in table；Liquid crystal display, report
Alert unit, infrared electro interface, communication interface and light emitting diode are arranged on the front panel of housing, and according to such as lower section
Formula is arranged：Liquid crystal display is located at the upper strata central region of front panel, and light emitting diode has two, and one of them is located at liquid crystal
The left side of display, another is located at the right side of liquid crystal display；Infrared electro interface and communication interface are located at leading flank respectively
The middle level left field and middle level right side area of plate；Alarm unit is located at lower floor's left field of front panel, in front panel
Lower floor's right side area be provided with the power switch that is connected with power supply.
2. a kind of gate energy meter according to claim 1, it is characterised in that the sample frequency of the AD converter is
4kHz；Aliasing filter is also associated with the AD converter.
3. a kind of gate energy meter according to claim 1, it is characterised in that be provided with extension on the rear side panel of housing
Hook；Pedestal is connected with the bottom of housing, each corner location on pedestal is provided with bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720031397.XU CN206348450U (en) | 2017-01-10 | 2017-01-10 | A kind of gate energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720031397.XU CN206348450U (en) | 2017-01-10 | 2017-01-10 | A kind of gate energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206348450U true CN206348450U (en) | 2017-07-21 |
Family
ID=59324457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720031397.XU Active CN206348450U (en) | 2017-01-10 | 2017-01-10 | A kind of gate energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206348450U (en) |
-
2017
- 2017-01-10 CN CN201720031397.XU patent/CN206348450U/en active Active
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