CN108362932A - Electric energy meter battery undervoltage detection device - Google Patents
Electric energy meter battery undervoltage detection device Download PDFInfo
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- CN108362932A CN108362932A CN201710807773.4A CN201710807773A CN108362932A CN 108362932 A CN108362932 A CN 108362932A CN 201710807773 A CN201710807773 A CN 201710807773A CN 108362932 A CN108362932 A CN 108362932A
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- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 238000009434 installation Methods 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 14
- 238000007689 inspection Methods 0.000 abstract description 6
- 230000005856 abnormality Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 208000032953 Device battery issue Diseases 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of electric energy meter battery undervoltage detection devices, including battery undervoltage detector and for electric installation, battery undervoltage detector includes processor, communication device, condition indication circuit and key device, communication device, condition indication circuit and key device are all connected with processor, communication device is used to connect for electric installation by electric energy meter to be measured, include changeover module, control processor, voltage and current switch module and power supply interface component for electric installation, changeover module connects control processor, and voltage and current switch module connects control processor and power supply interface component.Different safe and reliable power supplys is provided for electric energy meter to be measured for electric installation, and exempt from wiring setting, user can clearly learn whether electric energy meter battery is under-voltage and whether electric energy meter to be measured breaks down by the state instruction of the condition indication circuit of electric energy meter battery undervoltage detection device, avoiding the instruction of the abnormality code on manual identified electric energy meter display screen causes missing inspection false retrieval phenomenon, detection efficiency high.
Description
Technical field
The present invention relates to electric device detection fields, more particularly to a kind of electric energy meter battery undervoltage detection device.
Background technology
In recent years, with the deep propulsion of grid company business integrative development, metering automation system Construction just has
Scale, especially intelligent electric energy meter have obtained large-scale popularization.The application of measuring equipment shows that quantity is big, type is more, intelligence
The feature of energyization, running environment complexity.
Maintenance work is installed for electric energy meter field, there is more problems.Wherein battery undervoltage is particularly problematic, especially
It is that Clock battery undervoltage warning occur when installing at the scene for the longer electric energy meter of resting period in storehouse, so as to
It can lead to ammeter clock error, and the time of ammeter mistake will lead to rate switching error, freeze electricity unloading time of origin
Mistake etc. influences the problem of ammeter normally measures, to seriously affect satisfaction of the user to electric power enterprise service.
And the mode of traditional detection battery undervoltage, it mainly relies on after electric energy meter is installed to scene, using manual identified electricity
Abnormality code instruction on energy table display screen causes missing inspection false retrieval phenomenon to occur repeatedly, detects since proficiency's ginseng time is uneven
Efficiency is low.
Invention content
Based on this, it is necessary to for the low problem of traditional detection battery undervoltage mode efficiency, it is high to provide a kind of detection efficiency
Electric energy meter battery undervoltage detection device.
A kind of electric energy meter battery undervoltage detection device, including battery undervoltage detector and for electric installation, the battery undervoltage
Detector includes processor, communication device, condition indication circuit and key device, the communication device, state instruction electricity
Road and the key device are all connected with the processor, and the communication device is used to connect by electric energy meter to be measured described for Denso
It sets, described for electric installation includes changeover module, control processor, voltage and current switch module and power supply interface component, described to cut
It changes component and connects the control processor, the voltage and current switch module connects the control processor and the power supply interface
Component.
Above-mentioned electric energy meter battery undervoltage detection device is used to place electric energy meter to be measured for the power supply interface component of electric installation,
Different safe and reliable power supplys can be provided for electric energy meter to be measured by changeover module, voltage and current switch module, and exempt from wiring
Setting, key device send triggering command and start to start for triggering processor to processor, and processor is used for by communicating dress
Transmission acquisition battery undervoltage information command is set to electric energy meter to be measured, and receives the battery undervoltage information returned by communication device,
Processor is detected the battery undervoltage information of reception, exports corresponding control instruction according to testing result to state instruction electricity
Road carries out result instruction, and user can clearly learn electrical energy meter electricity by the state instruction of electric energy meter battery undervoltage detection device
Whether pond is under-voltage and whether electric energy meter to be measured breaks down, and the abnormality code avoided on manual identified electric energy meter display screen refers to
Showing leads to missing inspection false retrieval phenomenon, and detection efficiency is high.
Description of the drawings
Fig. 1 is electric energy meter battery undervoltage structure of the detecting device figure in an embodiment；
Fig. 2 is battery undervoltage detector structure chart in an embodiment；
Fig. 3 is structure drawing of device of powering in an embodiment；
Fig. 4 is 1 schematic diagram of ammeter operating status word in an embodiment；
Fig. 5 is battery undervoltage detector structure chart in another embodiment；
Fig. 6 is electric energy meter battery undervoltage structure of the detecting device schematic diagram in an embodiment.
Specific implementation mode
In one embodiment, as shown in Figure 1,2 and 3, a kind of electric energy meter battery undervoltage detection device, including battery undervoltage
Detector 100 and for electric installation 300, battery undervoltage detector 100 includes processor 110, communication device 120, state instruction electricity
Road 130 and key device 140, communication device 120, condition indication circuit 130 and key device 140 are all connected with processor 110, lead to
T unit 120 is used for through electric energy meter to be measured connection for electric installation 300, includes changeover module 310, at control for electric installation 300
Device, voltage and current switch module 330 and power supply interface component 340 are managed, changeover module 310 connects control processor 320, voltage electricity
It flows switch module 330 and connects control processor 320 and power supply interface component 340.
Specifically, changeover module can be passed through for placing electric energy meter to be measured for the power supply interface component 340 of electric installation 300
310, voltage and current switch module 330 provides different safe and reliable power supplys for electric energy meter to be measured, and exempts from wiring setting, button
Device 140 sends triggering command and starts to start for triggering processor 110 to processor 110, and processor 110 is for passing through communication
Device 120 sends acquisition battery undervoltage information command to electric energy meter to be measured, and receives and owed by the battery that communication device 120 returns
It presses information, processor 110 to be detected the battery undervoltage information of reception, exports corresponding control instruction according to testing result extremely
Condition indication circuit 130 carries out result instruction.
Above-mentioned electric energy meter battery undervoltage detection device, user can pass through the state instruction of electric energy meter battery undervoltage detection device
It can clearly learn whether electric energy meter battery is under-voltage and whether electric energy meter to be measured breaks down, and avoids manual identified electric energy meter
Abnormality code instruction on display screen causes missing inspection false retrieval phenomenon, detection efficiency high.
In one embodiment, communication device 120 is wireless communication device, and in the present embodiment, communication device 120 is red
Outer R-T unit.
Specifically, infrared transceiver device is waited for for the acquisition battery undervoltage information command that processor 110 is sent to be sent to
Electric energy meter is surveyed, the under-voltage information of electric energy meter internal cell to be measured is acquired, and receives the under-voltage information of electric energy meter internal cell to be measured and sends
To processor 110, the function with electric energy meter communication port information exchange to be measured is played, single-phase intelligent electric energy meter and three are specifically included
Phase intelligent electric energy meter.
In one embodiment, infrared transceiver device includes infrared transmission circuit 126, infrared transmitting tube 128, infrared receiver
Circuit 122 and infrared receiving tube 124, infrared transmission circuit 126 connect infrared transmitting tube 128, and infrared receiving circuit 122 connects red
Outer reception pipe 124, infrared transmitting tube 128 is by 126 connection processing device 110 of infrared transmission circuit, and infrared receiving tube 124 is by red
122 connection processing device 110 of outer receiving circuit.
Specifically, infrared transmission circuit 126 is red for passing through the acquisition battery undervoltage information command that processor 110 is sent
Outer transmitting tube 128 is sent to electric energy meter to be measured, acquires the under-voltage information of electric energy meter internal cell to be measured, and through infrared receiving tube 124
It receives the under-voltage information of electric energy meter internal cell to be measured and processor 110 is sent to by infrared transmission circuit 126, play and electricity to be measured
The function of energy table infrared port information exchange, it is further, infrared in infrared transmission circuit 126 and infrared receiving circuit 122
Can be far infrared can also be near-infrared.
In the present embodiment, as shown in figure 4, acquisition battery undervoltage information is to read information in ammeter operating status 1, battery
Under-voltage information is obtained by ammeter internal judgment, can write on corresponding under-voltage information in ammeter operating status digital data frame,
As long as read ammeter status word information can know whether it is under-voltage, for example, the under-voltage position of Bit2 Clock batteries be 1 indicate the electric energy
Table Clock battery is under-voltage, and so on.
In one embodiment, key device 140 includes key circuit 142 and button 144, and the connection of key circuit 142 is pressed
Key 144, button 144 pass through 142 connection processing device 110 of key circuit.
Specifically, user need to detect electric energy meter to be measured whether battery undervoltage when, 144 control button of button can be passed through
Circuit 142 sends triggering command to processor 110, and triggering processor 110 starts acquisition information.
Further, testing result include battery undervoltage instruction, detect successfully instruction and detection unsuccessfully indicate, battery undervoltage
Instruction refers to that battery undervoltage failure occurs inside electric energy meter when processor 110 determines, and processor 110 sends the first control instruction
Battery undervoltage indication signal is generated to condition indication circuit 130, detects and successfully refers to determining electric energy when processor 110
Do not occur battery undervoltage failure inside table, processor 110 send the second control instruction to condition indication circuit 130 generate detection at
Work(indication signal is detected and is unsuccessfully referred to when processor 110 is unable to the battery undervoltage information inside reading power meters, table
Show and detect that communication failure occurs for electric energy meter, processor 110 sends third control instruction to condition indication circuit 130 and generates detection
Failure indication signal, there are many forms of expression of the output of indication signal, as long as being convenient for user according to the output of indication signal
Form of expression recognition detection result.
In one embodiment, as shown in figure 5, condition indication circuit 130 includes control circuit 132 and indicating device 134,
132 link indicator part 134 of control circuit, 132 connection processing device 110 of control circuit.
Specifically, processor 110 according to testing result, sends the first control instruction, the second control instruction or third control
Instruction to control circuit 132, control circuit 132 refers to according to the control of the first control instruction, the second control instruction or third of reception
It enables control generate corresponding indication signal and is sent to indicating device and exports.
In one embodiment, indicating device 134 includes the status indicator lamp and/or buzzer of connection control circuit 132.
Specifically, the composition of indicating device is not unique, is not limited to above example, for example can be voice prompt
Or text prompt etc. is in the present embodiment status indicator lamp and/or buzzer, status indicator lamp is specially light emitting diode,
The number of status indicator lamp can be one, or multiple, further, testing result includes battery undervoltage instruction, inspection
It surveys and successfully indicates and detect unsuccessfully to indicate, battery undervoltage instruction refers to that battery occurs inside electric energy meter when processor 110 determines
Under-voltage fault, processor 110 send the control circuit 132 in the first control instruction to condition indication circuit 130, control circuit
132 so state of a control indicator light become red and be always on either buzzer length and ring 2s or status indicator lamp and become red and be always on and bee
Device length of ringing rings 2s, detects and successfully refers to after processor 110 and electric energy meter are communicated by communication device 120, determining
Battery undervoltage failure does not occur inside electric energy meter, processor 110 sends the control in the second control instruction to condition indication circuit 130
Circuit 132 processed, control circuit 132 and then control control indicator light virescence are always on either buzzer length and ring 0.5s or state
Indicator light virescence is always on and buzzer length rings 0.5s, and detection unsuccessfully refers to passing through with electric energy meter when processor 110 logical
When T unit 120 communicates, communication failure, the battery undervoltage information being unable to inside reading power meters, processor 110 occur for electric energy meter
Send the control circuit 132 in third control instruction to condition indication circuit 130, control circuit 132 and then control control instruction
Lamp becomes yellow and is always on that either buzzer is rung 3 times according to the frequency of 2Hz or status indicator lamp becomes yellow and is always on and buzzer
It is rung 3 times according to the frequency of 2Hz, user can be defined by the frequency and length of status indicator lamp and/or the sound of buzzer
Obtain whether electric energy meter battery to be measured is under-voltage and whether electric energy meter to be measured breaks down.
Further, individually user can be reminded with buzzer, it is also possible to which buzzer mated condition indicator light reminds user, place
After managing battery undervoltage information of the device 110 by 126 reading power meters of infrared receiving circuit 122 and infrared transmission circuit, through state
Corresponding instruction is communicated to buzzer by the control circuit 132 in indicating circuit 130, and buzzer sends out response according to corresponding instruction and carries
Show sound.Avoiding the instruction of the abnormality code on manual identified electric energy meter display screen causes missing inspection false retrieval phenomenon, detection efficiency high.
In one embodiment, battery undervoltage detector 100 further includes supply unit, and supply unit includes power circuit
152 and power supply 154, power supply 154 pass through 152 connection processing device 110 of power circuit.
Specifically, power circuit 152 can guarantee that 154 supply security of power supply is reliable, have the reversed defencive function of battery, battery
By 2 section lithium battery power supplies, and there is power switch, is turning off the power switch when not in use, saving electric energy.
In one embodiment, supply unit further includes the first power switch, and the first power switch connects power circuit
152。
In one embodiment, battery undervoltage detector 100 further includes display screen, display screen connection processing device 110.
Specifically, display screen facilitates user more directly to judge whether battery is under-voltage, improves for showing testing result
Detection efficiency.
In one embodiment, processor 110 is 16 arm processors.
In one embodiment, further include power supply and isolated power supply for electric installation 300, power supply connects isolated power supply, power supply
It powers for electric installation 300 for giving, electricity, isolated power supply can be taken to connect changeover module 310, the work for playing isolation from alternating current
With, including 220V power supplys are converted into 57.7V/220V/380V, ensure the safety of user.
In one embodiment, as shown in fig. 6, changeover module 310 includes voltage changeover switch and phase three-wire three-three-phase four
Line switching switch, phase three-wire three-three-phase and four-line switching switch connection voltage changeover switch and control processor 320.
Specifically, voltage changeover switch and phase three-wire three-three-phase and four-line switching switch need to be according to the specific of electric energy meter to be measured
The demand difference of type switches over.Voltage changeover switch can switch over voltage 220V, 100V and 57.7V, phase three-wire three-
Three-phase and four-line switching switch can switch over phase three-wire three power transmission line and three-phase and four-line power transmission line, be waited for suitable for a plurality of types of
Survey electric energy meter.
In one embodiment, power supply interface component 340 includes single-phase or three-phase interface module, and control processor 320 is logical
Overvoltage current switching components 330 are separately connected single-phase or three-phase interface module.
In one embodiment, further include telecommunication circuit and touch display screen for electric installation 300, touch display screen passes through logical
Believe that circuit connects electric energy meter to be measured.
Specifically, it is communicated by power-on circuit and electric energy meter to be measured for the touch display screen of electric installation 300, display is logical
Failure or reading power meters internal fault information, such as communication failure etc. are interrogated, other failures letter of electric energy meter is further detected
Breath, further, power-on circuit are RS485 buses.
In one embodiment, further include status lamp instruction device, the connection switching of status lamp instruction device for electric installation 300
Component 310 and control processor 320.
Specifically, when in changeover module 310 voltage changeover switch and phase three-wire three-three-phase and four-line switching switch to voltage
After value and phase three-wire three-three-phase and four-line switch over, correspondingly, status lamp instruction device can show corresponding color, for example, electric
Toggle switch is switched to 220V, and phase three-wire three-three-phase and four-line switching switching is three-phase and four-line, and status lamp instruction device is then
It is shown in red；Voltage changeover switch is switched to 100V, and phase three-wire three-three-phase and four-line switching switching is phase three-wire three, shape
State lamp instruction device is then shown as blue.Staff is by intuitively checking that the color of status lamp instruction device then may know that in this way
It exports to the voltage swing and power transmission line type of electric energy meter to be measured, simple, intuitive.
In one embodiment, voltage and current switch module 330 includes voltage switch component and current adjusting component, voltage
Switch module and current adjusting component are all connected with control processor 320 and power supply interface component 340.
Specifically, voltage switch component is used to control the break-make of the voltage of power supply interface component 340, can control
The break-make of any phase voltage of single-phase or three-phase, current adjusting component are used for the electric current gear tune of power supply interface component 340
5A or 1A is saved into, single-phase or three-phase electric current gear can be adjusted, by Modularized wiring terminal directly to electric energy meter to be measured
The adjusting for carrying out voltage and current, improves convenience, safety and the validity of detection.
In one embodiment, further include second source switch for electric installation 300, power supply is switched by second source and connected
Isolated power supply, opening and closing of the second source switch for controlling the work for electric installation 300.
In one embodiment, electric energy meter battery undervoltage detection device further includes shell, battery undervoltage detector 100 and confession
Electric installation 300 is set to shell, and processor 110 is set in shell, communication device 120, condition indication circuit 130 and button dress
It sets 140 and is set to shell, changeover module 310 and voltage and current switch module 330 may be contained within shell, control processor 320
In in shell, housing outer surface is provided with electric energy meter installing zone to be measured, and power supply interface component 340 is set to electric energy meter installation to be measured
Area.
Specifically, status lamp instruction device is set to shell, is arranged by battery undervoltage detector 100 and for electric installation 300
In shell, on the one hand can be protected to battery undervoltage detector 100 and for electric installation 300, still further aspect can increase
Portability improves the detection convenience of user.
In one embodiment, electric energy meter battery undervoltage detection device further includes fixing device, and fixing device is set to shell
The electric energy meter installing zone to be measured of external surface, for fixing electric energy meter to be measured.
In a specific application scenarios, electric energy meter to be measured is mounted on for 300 power supply interface component of electric installation by user
On 340, it will be mounted in commercial power socket for 300 attaching plug of electric installation, and open and switched for 300 second source of electric installation, power supply
The touch display screen of device 300 is communicated by RS485 and electric energy meter, reading power meters internal fault information, is opened battery and is owed
The first power switch for pressing detector 100 triggers processor by key device 140 and passes through far infrared or near-infrared and electric energy meter
Communicated, electric energy meter battery undervoltage detector 100 by far infrared or near-infrared reading power meters battery undervoltage status information,
The diagnostic analysis for carrying out battery undervoltage failure, according to diagnostic analysis as a result, indicating fault and auditory tone cues are carried out, by battery undervoltage
The first power switch of high speed detector switchs closing with for 300 second source of electric installation, will be for 300 attaching plug of electric installation and city
Electrical socket detaches, and electric energy meter is removed from for electric installation 300, completes detection.
Above-mentioned electric energy meter battery undervoltage detection device installs electric energy to be measured in the electric energy meter installing zone to be measured of housing outer surface
Table, changeover module 310 can carry out the switching of voltage value and phase three-wire three/three-phase and four-line, and voltage and current adjusting part 330 can be to three
The voltage of phase power transmission line carries out break-make control and is adjusted to 5A or 1A, power supply interface component to the electric current gear of three phase transmission line
340 receive switch-over control signal and export to electric energy meter to be measured, and control processor 320 can carry out parameter to electric energy meter to be measured in real time
Detection, is communicated with electric energy meter to be measured, detectable to obtain internal fault of electric energy meter to be measured, such as communication failure etc., can be with
Parameter adjustment is carried out for different electric energy meters, is applicable in the working environment of electric energy meter, exempts from wiring setting, plug and play facilitates behaviour
Make, simple, intuitive, save a large amount of manpower and materials, and effectively prevent parameter configuration error, effectively increase work efficiency and can
By property, quick battery undervoltage detection can be carried out to ammeter before ammeter outbound installation, effectively prevent from storing due to long-time
Cause the electric energy meter of battery failures be installed to Electro-metering scene, meanwhile, also can at the scene O＆M when, to scene run electric energy meter
Quick battery undervoltage detection is carried out, realizes the early warning of battery failures electric energy meter, detection efficiency is high, to the electricity consumption for the company of improving
Service level.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, several 1 modification and improvement can also be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of electric energy meter battery undervoltage detection device, which is characterized in that described including battery undervoltage detector and for electric installation
Battery undervoltage detector includes processor, communication device, condition indication circuit and key device, the communication device, the shape
State indicating circuit and the key device are all connected with the processor, and the communication device is used to connect institute by electric energy meter to be measured
It states for electric installation, described for electric installation includes changeover module, control processor, voltage and current switch module and power supply interface group
Part, the changeover module connect the control processor, and the voltage and current switch module connects the control processor and institute
State power supply interface component.
2. electric energy meter battery undervoltage detection device according to claim 1, which is characterized in that the communication device is infrared
R-T unit.
3. electric energy meter battery undervoltage detection device according to claim 2, which is characterized in that the infrared transceiver device packet
Infrared transmission circuit, infrared transmitting tube, infrared receiving circuit and infrared receiving tube are included, the infrared transmission circuit connection is described red
Outer transmitting tube, the infrared receiving circuit connect the infrared receiving tube, and the infrared transmitting tube passes through the infrared transmission electricity
Road connects the processor, and the infrared receiving tube connects the processor by the infrared receiving circuit.
4. electric energy meter battery undervoltage detection device according to claim 1, which is characterized in that key device includes button electricity
Road and button, the key circuit connect the button, and the button connects the processor by the key circuit.
5. electric energy meter battery undervoltage detection device according to claim 1, which is characterized in that the condition indication circuit packet
Control circuit and indicating device are included, the control circuit connects the indicating device, and the control circuit connects the processor.
6. electric energy meter battery undervoltage detection device according to claim 5, which is characterized in that the indicating device includes connecting
Connect the status indicator lamp and/or buzzer of the control circuit.
7. electric energy meter battery undervoltage detection device according to claim 1, which is characterized in that further include supply unit, institute
It includes power circuit and power supply to state supply unit, and the power supply connects the processor by the power circuit.
8. electric energy meter battery undervoltage detection device according to claim 1, which is characterized in that described to further include for electric installation
Status lamp instruction device, status lamp instruction device connect the changeover module and the control processor.
9. electric energy meter battery undervoltage detection device according to claim 1, which is characterized in that the changeover module includes electricity
Toggle switch and phase three-wire three-three-phase and four-line switching switch, the phase three-wire three-three-phase and four-line switching switch connect the electricity
Toggle switch and the control processor.
10. electric energy meter battery undervoltage detection device according to claim 1, which is characterized in that the voltage and current switch
Component includes voltage switch component and current adjusting component, and the voltage switch component and the current adjusting component are all connected with institute
State control processor and the power supply interface component.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710807773.4A CN108362932A (en) | 2017-09-08 | 2017-09-08 | Electric energy meter battery undervoltage detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710807773.4A CN108362932A (en) | 2017-09-08 | 2017-09-08 | Electric energy meter battery undervoltage detection device |
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| CN201710807773.4A Pending CN108362932A (en) | 2017-09-08 | 2017-09-08 | Electric energy meter battery undervoltage detection device |
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Cited By (4)
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| CN110441697A (en) * | 2019-08-30 | 2019-11-12 | 浙江八达电子仪表有限公司 | A kind of device of quick detection electric energy meter electric quantity of lithium battery |
| CN111751780A (en) * | 2020-07-07 | 2020-10-09 | 广东电网有限责任公司计量中心 | Device and method for monitoring undervoltage of battery of electric energy meter |
| CN113419206A (en) * | 2021-05-27 | 2021-09-21 | 国网山东省电力公司青岛供电公司 | Three-phase three-wire electric energy meter wiring judgment method, electric energy meter and equipment |
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