CN206906475U - Three ammeters of expandable type - Google Patents
Three ammeters of expandable type Download PDFInfo
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- CN206906475U CN206906475U CN201720716747.6U CN201720716747U CN206906475U CN 206906475 U CN206906475 U CN 206906475U CN 201720716747 U CN201720716747 U CN 201720716747U CN 206906475 U CN206906475 U CN 206906475U
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Abstract
The utility model discloses a kind of three ammeters of expandable type.Three-phase multifunctional electric energy computation chip selects ADE7880 chips, for providing three tunnel pulse outputs, the calibration in terms of carrying out electric energy and power with master meter；Voltage measurement module is connected by circuit with ADE7880 chips, and the signal for meeting ADE7880 chip incoming signal level standards is transformed into by electric resistance partial pressure；Current measurement module is connected by circuit with ADE7880 chips, and high current is transformed into low current by current transformer, then again by resistance so that current signal is transformed into the voltage signal for meeting ADE7880 chip incoming signal level standards；Dial-up module, for selecting the input range of current transformer；485 communication modules, are used for and external communication；Power supply module, for providing 24 volts of required DC supply inputs of system work.The utility model is applied to the electric power detection of equipment intensity workshop.
Description
Technical field：
The utility model belongs to ammeter expansion technique field, more particularly to a kind of three ammeters of expandable type.
Background technology：
Most of ammeter product in existing textile industry for collecting device electrical parameter is to be directly installed on board control
In cabinet processed, because cotton spinning equipment is more, the installation so not only bad for ammeter, the stability that board controls more is influenceed.This
Outer ammeter volume is relatively large, is installed in board switch board, is unfavorable for daily maintenance.
Ammeter in existing textile industry, it is impossible to which extension adds electricity, it is necessary to one piece of independent ammeter of every chassis outfit
Measure testing cost.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the present utility model, and
It is not construed as recognizing or implies that the information structure has been existing well known to persons skilled in the art in any form
Technology.
Utility model content：
The purpose of this utility model is to provide a kind of three ammeters of expandable type, above-mentioned of the prior art so as to overcome
Defect.
To achieve the above object, the utility model provides a kind of three ammeters of expandable type, including：Three-phase multifunctional electricity
Can computation chip, current measurement module, voltage measurement module, dial-up module, 485 communication modules, power supply module；The three-phase is more
Function electric energy computation chip selects ADE7880 chips, and for providing three tunnel pulse outputs, electric energy and power are carried out with master meter
The calibration of aspect；The voltage measurement module is connected by circuit with ADE7880 chips, and satisfaction is transformed into by electric resistance partial pressure
The signal of ADE7880 chip incoming signal level standards；The current measurement module is connected by circuit with ADE7880 chips,
High current is transformed into by current transformer by low current, then again by resistance so that current signal is transformed into satisfaction
The voltage signal of ADE7880 chip incoming signal level standards；The dial-up module, for selecting the input quantity of current transformer
Journey；485 communication module, is used for and external communication；The power supply module is straight for 24 volts required for providing system work
Flow power input.
Preferably, in technical scheme, dial-up module default value 00, the 100A for representing to use turns 5A current transformer, when
When the value for changing switch is 01, represent to turn 5A current transformer using 50A, when the value for changing switch is 10, represent to use
200A turns 5A current transformer.
Compared with prior art, the utility model has the advantages that：
It ammeter small volume, can be directly installed in power cabinet, realize and concentrate wiring, installation ammeter, greatly save
Set-up time.Ammeter can extend, while measure the information about power of four equipment, relatively conventional ammeter, can effectively save
About cost.Realize that the current transformer ratio of 50,100,200 different ranges carries out the measurement of information about power, operation by dial-up
It is convenient.
Brief description of the drawings：
Fig. 1 is three ammeter internal structure schematic diagrams of the utility model expandable type；
Fig. 2 is three ammeter external structure schematic diagrams of the utility model expandable type.
Embodiment：
Specific embodiment of the present utility model is described in detail below, it is to be understood that protection of the present utility model
Scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
As shown in Figure 1-2, a kind of three ammeters of expandable type, including：Three-phase multifunctional electric energy computation chip, current measurement
Module, voltage measurement module, dial-up module, 485 communication modules, power supply module；The three-phase multifunctional electric energy computation chip choosing
With ADE7880 chips, exported for providing three tunnel pulses, the calibration in terms of carrying out electric energy and power with master meter；The electricity
Pressure measurement module is connected by circuit with ADE7880 chips, is transformed into by electric resistance partial pressure and is met ADE7880 chip input signals
The signal of level standard；The current measurement module is connected by circuit with ADE7880 chips, by current transformer big electricity
Rheology changes low current into, then meets ADE7880 chip incoming signal levels by resistance so as to which current signal is transformed into again
The voltage signal of standard；The dial-up module, for selecting the input range of current transformer；485 communication module uses
The MODBUS rtu protocols of standard, baud rate 9600 are used for and external communication；The power supply module, for providing system work
24 volts of DC supply inputs required for making.Ammeter small volume, it can be directly installed in power cabinet, the wiring of realization concentration,
Ammeter is installed, is saved greatly the set-up time.Ammeter can extend, while measure the information about power of four equipment, relative to pass
System ammeter, can be effectively cost-effective.
Dial-up module default value 00, the 100A for representing to use turns 5A current transformer, when the value for changing switch is 01,
Expression turns 5A current transformer using 50A, when the value for changing switch is 10, represents to turn 5A Current Mutual Inductance using 200A
Device.Realize that the current transformer ratio of 50,100,200 different ranges carries out the measurement of information about power by dial-up, it is easy to operate.
Three-phase voltage is mainly relevant with the sampling resistor of current side with divider resistance with the conversion of current value, for
For ADE7880 chips, when to its maximum 0.5 vor signal of input, its digital quantity exported is a fixed value, when to be other
During the signal of amplitude, its digital quantity exported also proportional change, so as to be conversed according to the ratio can of divider resistance
Real input three-phase voltage.The conversion of three-phase current is as three-phase voltage.The detection of voltage and electric current is in its zero passage
Carried out during point, such error is minimum.Three phases active power, the conversion of three-phase apparent energy then need the instrument of a standard to do
Compare, the instrument of standard provides current performance number, and the digital quantity corresponding to reading from ADE7880 chips, thus may be used afterwards
To establish the corresponding relation between digital quantity and real performance number.
ADE7880 chips do not provide every mutually total reactive power and calculated, be within the system according to active power with it is idle
The quadratic sum of power calculates total reactive power for the quadratic relationship of apparent energy.Three-phase electric energy, including active and apparent
Calculating it is similar with the calculating of power, it is also desirable to a standard scale is compared, carrying out the conversion of digital quantity and actual value
The foundation of relation.
The foregoing description to specific illustrative embodiment of the present utility model is to illustrate and the purpose of illustration.These
Description is not wishing to for the utility model to be defined to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explain certain principles of the present utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of examples of the present utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shape
Formula is limited.
Claims (2)
- A kind of 1. three ammeters of expandable type, it is characterised in that：Including three-phase multifunctional electric energy computation chip, current measurement mould Block, voltage measurement module, dial-up module, 485 communication modules, power supply module；The three-phase multifunctional electric energy computation chip is selected ADE7880 chips, for providing three tunnel pulse outputs, the calibration in terms of carrying out electric energy and power with master meter；The voltage Measurement module is connected by circuit with ADE7880 chips, is transformed into by electric resistance partial pressure and is met ADE7880 chips input signal electricity The signal of flat standard；The current measurement module is connected by circuit with ADE7880 chips, by current transformer high current Low current is transformed into, ADE7880 chip incoming signal level marks are then met so as to which current signal is transformed into by resistance again Accurate voltage signal；The dial-up module, for selecting the input range of current transformer；485 communication module, for External communication；The power supply module, for providing 24 volts of required DC supply inputs of system work.
- 2. three ammeters of expandable type according to claim 1, it is characterised in that：The dial-up module default value 00, table Show that the 100A used turns 5A current transformer, when the value for changing switch is 01, represent to turn 5A Current Mutual Inductance using 50A Device, when the value for changing switch is 10, represent to turn 5A current transformer using 200A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720716747.6U CN206906475U (en) | 2017-06-20 | 2017-06-20 | Three ammeters of expandable type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720716747.6U CN206906475U (en) | 2017-06-20 | 2017-06-20 | Three ammeters of expandable type |
Publications (1)
| Publication Number | Publication Date |
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| CN206906475U true CN206906475U (en) | 2018-01-19 |
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| CN201720716747.6U Active CN206906475U (en) | 2017-06-20 | 2017-06-20 | Three ammeters of expandable type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI697678B (en) * | 2019-07-26 | 2020-07-01 | 群光電能科技股份有限公司 | Expandable combination electric meter |
-
2017
- 2017-06-20 CN CN201720716747.6U patent/CN206906475U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI697678B (en) * | 2019-07-26 | 2020-07-01 | 群光電能科技股份有限公司 | Expandable combination electric meter |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181206 Address after: 100176 Yuncheng Street, Daxing Economic and Technological Development Zone, Beijing Patentee after: Beijing Jingwei Textile Machinery New Technology Co., Ltd. Address before: Units 1701 and 1702, Building 9, Shenzhen and Hong Kong Metropolitan Plaza, 299 Fangcheng Avenue, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee before: JINGWEI RUANXIN TECHNOLOGY (WUXI) CO., LTD. |