CN109541300A - A kind of the Analysis of energy metering instrument and its application method of count by time sharing - Google Patents
A kind of the Analysis of energy metering instrument and its application method of count by time sharing Download PDFInfo
- Publication number
- CN109541300A CN109541300A CN201910024092.XA CN201910024092A CN109541300A CN 109541300 A CN109541300 A CN 109541300A CN 201910024092 A CN201910024092 A CN 201910024092A CN 109541300 A CN109541300 A CN 109541300A
- Authority
- CN
- China
- Prior art keywords
- power supply
- analysis
- metering instrument
- circuit
- energy metering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004458 analytical method Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000005611 electricity Effects 0.000 claims abstract description 31
- 238000004364 calculation method Methods 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000005070 sampling Methods 0.000 claims description 11
- 230000003321 amplification Effects 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000004445 quantitative analysis Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 101100471685 Caenorhabditis elegans ubq-2 gene Proteins 0.000 description 1
- 241001274660 Modulus Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/56—Special tariff meters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
A kind of the Analysis of energy metering instrument and its application method of count by time sharing, it is related to measuring electric variable technical field, it is provided with information collection and communication output module, signal processing module, calculation process module, be additionally provided with period control circuit connection data processing unit, the analyzer can be applied to it is a kind of have valuate at times without meter expense.The beneficial effects of the present invention are: the present invention has the function of count by time sharing charging, under the premise of the actual power to secondary circuit is furtherd investigate, it proposes and a kind of novel remedies electricity method, electric energy meter is replaced in present invention permission in the case where power supply line does not power off, and can accurately it add up without total power supply volume during table, facilitate it is subsequent remedy electricity to user, give up doubt existing for user, it is horizontal to improve good service.
Description
Technical field
The present invention relates to measurement electric variable technical field, a kind of Analysis of energy metering instrument more particularly to count by time sharing and
Its application method.
Background technique
For failure electric energy meter or superperiod electric energy meter, new electric energy meter need to be carried and replace field electric energy table,
Due to taking during meter replacement without meter, needs to carry out after the completion of meter replacement and remedy electricity work.
Traditional electric quantity compensating method is: recording the voltage before and after changing table, size of current to calculate average function during changing table
The time spent in rate records the power factor before and after changing table to calculate mean power factor, and record changes table, utilizes (Power x function
Rate factor × change the table time × stoichiometric point multiplying power) method obtain the electricity counted less during changing table.This calculation method utilizes
Mean power and average power factor are calculated, so the electricity obtained is actually an estimated value, and non-at-scene online
The practical electricity of (off line), especially when route multiplying power is very big, the difference with practical electricity can be very big.Certain customers are to meter
Amount unit is reflected to remedied electricity there are the idea of doubt, and the impression to work good service is had a greatly reduced quality.
By taking some hydropower station carries out 750kV drawing official line electric energy meter rotation work as an example, before and after replacement meter, maximum load is
132.24kW, minimum load 115.425kW, average load 123.83kW change table time-consuming 0.5 hour, and route multiplying power is
32000000.Therefore electricity such as is remedied by maximum load, 211.584 ten thousand kWh of electricity volume should be remedied；Such as electricity is remedied by minimum load
Amount, should remedy 184.68 ten thousand kWh of electricity volume；Electricity such as is remedied by average load, 198.132 ten thousand kWh of electricity volume should be remedied.
According to average load calculate it is resulting remedy electricity, resulting remedy differing for electricity with calculating according to highest or minimum load
Value, can reach 13.452 ten thousand kWh.So there are certain irrationalities for electricity obtained by such calculation method.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides Analysis of energy metering instrument and its application side of a kind of count by time sharing
Method can accurately add up in new, old electric energy meter replacement process to need without power supply volume total during table, and during accurately calculating no table
The total electricity bill of pricing for segment.
The present invention provides a kind of Analysis of energy metering instrument of count by time sharing, and cabinet is the cuboid of fillet, inside setting
There are information collection and communication output module (1), signal processing module (2), calculation process module (3)；
Information collection and communication output module (1) include voltage access interface (101), electric current access interface (103), electric current split-core type meter
Interface, pulse current interface, USB interface, cable interface, RS232 debugging interface；
Signal processing module (2) includes signal amplification circuit (201) and eight channel A/D analog to digital conversion circuits (202)；
Calculation process module (3) includes data processing unit STM32F(301), man-machine interface ARM system (303), push-button unit
(302), display unit (304)；
Voltage access interface (101) connects resistor voltage divider circuit (102), connects eight channel AD moulds through signal amplification circuit (201)
Number conversion circuit (202), then data processing unit STM32F(301 is connected through period control circuit (4)), data processing unit
STM32F(301 man-machine interface ARM system (303)) are connected；Electric current access interface (103) connects CT sample circuit (104), through believing
Number amplifying circuit (201) connects eight channel A/D analog to digital conversion circuits (202), then connects data processing through period control circuit (4)
Cell S TM32F(301), data processing unit STM32F(301) connection man-machine interface ARM system (303)；Man-machine interface ARM system
System (303) is connect with push-button unit (302) and display unit (304)；
Data processing unit STM32F(301) and eight channel AD analog to digital conversion circuits (202) between be provided with sampling time sequence control
Circuit, sampling time sequence control circuit connect impulse output circuit；Data processing unit STM32F(301) it is also connected with three road voltages
With three tunnel current zero comparison circuits；Data processing unit STM32F(301) also it is connect with signal amplification circuit (201).
It further include power supply module inside the analyzer, lithium battery power supply and external electricity is arranged in power supply module
Source socket, external power supply socket can be equipment power supply and be lithium battery charging, be additionally provided with charging indicator light, full pressure instruction
Lamp, under-voltage indicator light, fill power switch.
The resistor voltage divider circuit (102) is sampled using precision resistance, and CT sample circuit (104) is using active compensation electricity
Current transformer sampling.
Be provided in the analyzer operation interface voltage access interface (101) 3, ground wire voltage access interface 1,
Electric current access interface (103) 3, electric current pick out port 3,3, electric current split-core type meter interface, 1, pulse current interface, usb 1
A, cable interface 1, RS232 debugging interface 1.
The analyzer is only applicable to alternating current circuit, signal acquisition method are as follows: a cycle samples at 512 points, three-phase
Voltage, three-phase current signal synchronized sampling, often convert a data, and data processing unit all reads 6 from A/D chip in time
The data of road signal are simultaneously stored, after the completion of the conversion output of cycle, calculation process module begin to calculate three-phase voltage,
The electric parameters such as electric current, active power, reactive power, apparent energy, phase and frequency.
Calculation method of the calculation process module to the virtual value of voltage and current are as follows: calculate six road signals each 512
The quadratic sum of a waveform point data, then opens radical sign, calculates three-phase voltage, current effective value in conjunction with hardware parameter.
Calculation method of the calculation process module to active power and reactive power are as follows: calculate 6 voltage wave figurate numbers
Group and the point-to-point of current waveform array are multiplied and are added calculatings, and reactive power uses 90 degree of methods calculating of phase shift；
Wherein active power:
Pa=Ua1Ia1+Ua2Ia2+…+Ua512Ia512
Pb=Ub1Ib1+Ub2Ib2+…+Ub512Ib512
Pc=Uc1Ic1+Uc2Ic2+…+Uc512Ic512
Pz=Pa+Pb+Pc
Wherein reactive power:
Qa=Ua1Ia129+Ua2Ia130+…+Ua384Ia512+Ua385Ia1+…+Ua512Ia128
Qb=Ub1Ib129+Ub2Ib130+…+Ub384Ib512+Ub385Ib1+…+Ub512Ib128
Qc=Uc1Ic129+Uc2Ic130+…+Uc384Ic512+Uc385Ic1+…+Uc512Ic128
Qz=Qa+Qb+Qc
Calculation method of the calculation process module to apparent energy are as follows: carried out using voltage effective value multiplied by current effective value
It calculates；
Sa=UaIa；Sb=UbIb；Sc=UcIc；
Sz=Sa+Sb+Sc
Calculation method of the calculation process module to active energy and reactive energy are as follows: standard time clock benchmark built in instrument,
Active energy and reactive energy are added up using 100mS；
Active energy (100ms)=PzT=Pz*100mS；
Reactive energy (100ms)=QzT=Qz*100mS；
Wherein active-power P z and reactive power Q z is the mean power in the 100mS time；
Total functional electric energy=PZ1T1+PZ2T2+PZ3T3+…+PZNTN
Total nonfunctional electric energy=QZ1T1+QZ2T2+QZ3T3+…+QZNTN
Calculation method of the calculation process module to spike Pinggu active energy and reactive energy are as follows: in terms of sharp period electric energy
It is illustrated for calculation: assuming that T1Moment initially enters the sharp period, writes down total active energy P at current timeZ1And reactive energy
QZ1, the period be not finished before write down total active energy P in the hypocone period in real timeZ2With reactive energy QZ2, until T2Time knot
The beam point moment enters other periods；Total electric energy calculation formula is as follows in the sharp period:
The sharp period adds up total active energy=PZ2–PZ1+ upper period accumulated after sharp period active energy；
The sharp period adds up total reactive energy=QZ2–QZ1+ upper period accumulated after sharp period reactive energy；
It is a kind of have valuate at times without meter charging method, comprising the following steps:
S01, old electric energy meter are connected by terminal box to the secondary side lead of power supply line and corresponding current transformer, using connecing
Wire box Analysis of energy metering instrument in parallel in power supply line；
S02 disconnects the connection between old electric energy meter and power supply line, while the real-time accumulated power supply by Analysis of energy metering instrument
Amount；
New electric energy meter is accessed power supply line according to the connection type of old electric energy meter and starts real-time accumulated power supply volume, simultaneously by S03
Analysis of energy metering instrument stops accumulative power supply volume, obtain in new, old electric energy meter replacement process without power supply volume total during table；
S04, Analysis of energy metering instrument calculate new, old electric energy meter replacement according to taximeter at times and without power supply volume total during table
In the process without total electricity bill during table；
S05 removes Analysis of energy metering instrument.
The step S02 is specific as follows: before old electric energy meter is changed, first passing through vectogram to check Analysis of energy metering instrument
The mode of connection it is whether correct；Then relevant parameter is inputted on Analysis of energy metering instrument；Corresponding by mobile terminal box is drawn
Piece removes old ammeter after cutting off the voltage circuit of old ammeter again, while by the corresponding scribing of mobile terminal box, and each electric current is mutual
Sensor is connected to Analysis of energy metering instrument, presses " beginning " key of Analysis of energy metering instrument, starts accumulative power supply volume.
The step S03 is specific as follows: after new electric energy meter thereto, by moving the corresponding scribing of terminal box,
New electric energy meter is connected to power supply line through terminal box, each current transformer is connected to new electric energy meter, while pressing electrical energy measurement
" stopping " key of analyzer stops accumulative power supply volume.
The beneficial effects of the present invention are: period control circuit is arranged in the present invention, realizes analyzer count by time sharing charging
Function, under the premise of the present invention furthers investigate the actual power of secondary circuit, propose and a kind of novel remedy electricity
Electric energy meter is replaced in method, present invention permission in the case where power supply line does not power off, and can be with by Analysis of energy metering instrument
Accurately add up without total power supply volume during table, facilitate it is subsequent remedy electricity to user, give up doubt existing for user, improve excellent
Matter service level.
Detailed description of the invention
Fig. 1, which is that the present invention is internal, connects block diagram；
Fig. 2 is 2 junction box structure schematic diagram of the embodiment of the present invention
Fig. 3 is 2 three-phase and four-line power supply line of the embodiment of the present invention, terminal box, the connection schematic diagram of electric energy meter；
Fig. 4 is the circuit of 2 three-phase and four-line power supply line of the embodiment of the present invention, electric energy meter, terminal box and Analysis of energy metering instrument
Connection schematic diagram；
Fig. 5 is the circuit of 2 phase three-wire three power supply line of the embodiment of the present invention, electric energy meter, terminal box and Analysis of energy metering instrument
Connection schematic diagram；
In figure: where 1, information collection and communication output module, 101, voltage access interface, 102, resistor voltage divider circuit, 103,
Electric current access interface, 104, CT sample circuit, 2, signal processing module, 201, signal amplification circuit, 202, eight channel A/D moduluses
Conversion circuit (202), 3, calculation process module, 301, according to processing unit STM32F, 302, push-button unit, 303, man-machine interface
ARM system, 304, display unit；1c~21c is the number of the connecting terminal of terminal box upper end, and 1b~10b is drawing for terminal box
The number of piece, 1a~13a are the number of the connecting terminal of terminal box lower end, and 1d~10d is the number of the connecting terminal of electric energy meter.
Specific embodiment
Embodiment 1, as shown in Figure 1, the present invention provides a kind of Analysis of energy metering instrument of count by time sharing, a kind of count by time sharing
Analysis of energy metering instrument, cabinet be fillet cuboid, be internally provided with information collection and communication output module (1), letter
Number processing module (2), calculation process module (3)；
Information collection and communication output module (1) include voltage access interface (101), electric current access interface (103), electric current split-core type meter
Interface, pulse current interface, USB interface, cable interface, RS232 debugging interface；
Signal processing module (2) includes signal amplification circuit (201) and eight channel A/D analog to digital conversion circuits (202)；
Calculation process module (3) includes data processing unit STM32F(301), man-machine interface ARM system (303), push-button unit
(302), display unit (304)；
Voltage access interface (101) connects resistor voltage divider circuit (102), connects eight channel AD moulds through signal amplification circuit (201)
Number conversion circuit (202), then data processing unit STM32F(301 is connected through period control circuit (4)), data processing unit
STM32F(301 man-machine interface ARM system (303)) are connected；Electric current access interface (103) connects CT sample circuit (104), through believing
Number amplifying circuit (201) connects eight channel A/D analog to digital conversion circuits (202), then connects data processing through period control circuit (4)
Cell S TM32F(301), data processing unit STM32F(301) connection man-machine interface ARM system (303)；Man-machine interface ARM system
System (303) is connect with push-button unit (302) and display unit (304)；
Data processing unit STM32F(301) and eight channel AD analog to digital conversion circuits (202) between be provided with sampling time sequence control
Circuit, sampling time sequence control circuit connect impulse output circuit；Data processing unit STM32F(301) it is also connected with three road voltages
With three tunnel current zero comparison circuits；Data processing unit STM32F(301) also it is connect with signal amplification circuit (201).
It further include power supply module inside the analyzer, lithium battery power supply and external electricity is arranged in power supply module
Source socket, external power supply socket can be equipment power supply and be lithium battery charging, be additionally provided with charging indicator light, full pressure instruction
Lamp, under-voltage indicator light, fill power switch.
The resistor voltage divider circuit (102) is sampled using precision resistance, and CT sample circuit (104) is using active compensation electricity
Current transformer sampling.
Be provided in the analyzer operation interface voltage access interface (101) 3, ground wire voltage access interface 1,
Electric current access interface (103) 3, electric current pick out port 3,3, electric current split-core type meter interface, 1, pulse current interface, usb 1
A, cable interface 1, RS232 debugging interface 1.
The analyzer is only applicable to alternating current circuit, signal acquisition method are as follows: a cycle samples at 512 points, three-phase
Voltage, three-phase current signal synchronized sampling, often convert a data, and data processing unit all reads 6 from A/D chip in time
The data of road signal are simultaneously stored, after the completion of the conversion output of cycle, calculation process module begin to calculate three-phase voltage,
The electric parameters such as electric current, active power, reactive power, apparent energy, phase and frequency.
Embodiment 2, the present invention provide it is a kind of have valuate at times without meter charging method, comprising the following steps:
S01, using terminal box in power supply line an Analysis of energy metering instrument in parallel；
As shown in the figure: terminal box shares 7 groups of terminals and constitutes, and wherein current circuit has 3 connecting terminals, every end with 3 groups, every group
Sub is up and down an entirety, and left and right is to disconnect, and is attached or is disconnected with scribing between terminal.With 4 groups, every group has voltage circuit
3 connecting terminals, every terminal is up and down an entirety, and left and right is connection, is to disconnect up and down, is attached using scribing
Or it disconnects.
Old electric energy meter is connected by terminal box to the secondary side lead of power supply line and corresponding current transformer, specifically such as
Under:
(A) each connecting terminal of electric energy meter is connected with the upper end connecting terminal of terminal box, and specific connection type is as follows: 1d connection
5c, 2d connect 2c, 3d connection 6c, 4d connection 11c, 5d connection 8c, 6d connection 12c, 7d connection 17c, 8d connection 14c, 9d connection
18c, 10d connect 20c；
(B) lower end of terminal box is connected with the secondary side lead of each current transformer, specific as follows: firewire U connection 1a, firewire
V connection 5a, firewire W connection 8a, zero curve N connection 13a；The current transformer head end of firewire U, end are connected respectively 2a, 4a；
The current transformer head end of firewire V, end are connected respectively 6a, 8a；The current transformer head end of firewire W, end are right respectively
10a, 12a should be connected.
(C) 1b, 4b, 7b, 10b are respectively the scribing of 4 groups of voltage circuits, and electric energy meter is connected when running；2b,3b,5b,6b,
8b, 9b are the scribing of 3 groups of current circuits, and 2b, 5b, 8b are connected when electric energy meter is run, and 3b, 6b, 9b are disconnected.
In this way, electric energy meter can calculate the power supply volume of three-phase and four-line power supply line.
Referring to Fig. 2 and Fig. 4, the specific connection type between Analysis of energy metering instrument and terminal box is specific as follows:
The input terminal of voltage u, v, w, n of Analysis of energy metering instrument are connected respectively to the connecting terminal of terminal box lower end
1a,5a,8a,13a；Input (into) end of electric current Iu, Iv, Iw of Analysis of energy metering instrument are connected respectively to terminal box
Connecting terminal 4c, 10c, the 16c at end；The output end of electric current Iu, Iv, Iw of Analysis of energy metering instrument are connected respectively to connecing
Connecting terminal 3a, 7a, 11a of wire box upper end.
S02 disconnects the connection between old electric energy meter and power supply line, while real-time accumulated by Analysis of energy metering instrument
Power supply volume.
Specifically, before old electric energy meter is changed, the mode of connection for first passing through vectogram to check Analysis of energy metering instrument is
It is no correct；Then relevant parameter is inputted on Analysis of energy metering instrument, it is forward and reverse including each rate electricity shown on electric energy meter
Active input and output electricity (total, peak, flat, paddy), forward and reverse idle total electricity, mutual inductor ratio, current transformer no-load voltage ratio and again
Rate；By the corresponding scribing of voltage circuit in mobile terminal box, 1b, 4b, 7b, 10b are disconnected, the voltage circuit of old ammeter is cut off
Remove old ammeter (disconnecting the conducting wire on all connecting terminals of old ammeter) again afterwards；Pass through current circuit in mobile terminal box simultaneously
Corresponding scribing disconnects 2b, 5b, 8b, and 3b, 6b, 9b are connected, and so that each current transformer is connected to Analysis of energy metering instrument, presses
" beginning " key of Analysis of energy metering instrument starts accumulative power supply volume.
New electric energy meter is accessed power supply line according to the connection type of old electric energy meter and starts real-time accumulated power supply volume by S03,
Analysis of energy metering instrument stops accumulative power supply volume simultaneously, obtain in new, old electric energy meter replacement process without power supply volume total during table.
It is specific as follows: after new electric energy meter thereto, the corresponding scribing of voltage circuit in mobile terminal box, make 1b,
4b, 7b, 10b are connected, and the corresponding scribing of current circuit, connects 2b, 5b, 8b in mobile terminal box, and 3b, 6b, 9b are disconnected, and are made new
Electric energy meter is connected to power supply line through terminal box, and each current transformer is made to be connected to new electric energy meter, while pressing electrical energy measurement point
" stopping " key of analyzer stops accumulative power supply volume.
S04, Analysis of energy metering instrument calculate new, old electric energy meter according to taximeter at times and without power supply volume total during table
In replacement process without total electricity bill during table；It is spare can be previously entered Analysis of energy metering instrument for taximeter at times, works as electric energy
Quantitative analysis instrument is obtained without total power supply volume during conversing no table automatically according to taximeter at times after power supply volume total during table.
S05 removes Analysis of energy metering instrument.
Referring to Fig. 2 to Fig. 5, power supply line either three-phase and four-line or phase three-wire three be can be used disclosed by the invention
It is consistent in principle although not had in the specific mode of connection without meter charging method.
The present invention allows to replace electric energy meter in the case where power supply line is customer power supply, and relies on Analysis of energy metering
Instrument can accurately add up to facilitate the subsequent idea for remedying electricity there are doubt to user without total power supply volume during table, improve
Good service is horizontal.
Claims (7)
1. a kind of Analysis of energy metering instrument of count by time sharing, it is characterised in that: cabinet is the cuboid of fillet, is internally provided with
Information collection and communication output module (1), signal processing module (2), calculation process module (3)；
Information collection and communication output module (1) include voltage access interface (101), electric current access interface (103), electric current split-core type meter
Interface, pulse current interface, USB interface, cable interface, RS232 debugging interface；
Signal processing module (2) includes signal amplification circuit (201) and eight channel A/D analog to digital conversion circuits (202)；
Calculation process module (3) includes data processing unit STM32F(301), man-machine interface ARM system (303), push-button unit
(302), display unit (304)；
Voltage access interface (101) connects resistor voltage divider circuit (102), connects eight channel AD moulds through signal amplification circuit (201)
Number conversion circuit (202), then data processing unit STM32F(301 is connected through period control circuit (4)), data processing unit
STM32F(301 man-machine interface ARM system (303)) are connected；Electric current access interface (103) connects CT sample circuit (104), through believing
Number amplifying circuit (201) connects eight channel A/D analog to digital conversion circuits (202), then connects data processing through period control circuit (4)
Cell S TM32F(301), data processing unit STM32F(301) connection man-machine interface ARM system (303)；Man-machine interface ARM system
System (303) is connect with push-button unit (302) and display unit (304)；
Data processing unit STM32F(301) and eight channel AD analog to digital conversion circuits (202) between be provided with sampling time sequence control
Circuit, sampling time sequence control circuit connect impulse output circuit；Data processing unit STM32F(301) it is also connected with three road voltages
With three tunnel current zero comparison circuits；Data processing unit STM32F(301) also it is connect with signal amplification circuit (201).
2. a kind of Analysis of energy metering instrument of count by time sharing according to claim 1, it is characterised in that: the analyzer
Inside further includes power supply module, and lithium battery power supply and external power supply socket, external power supply socket is arranged in power supply module
Can be equipment power supply and be lithium battery charging, be additionally provided with charging indicator light, completely press indicator light, under-voltage indicator light, fill power supply
Switch.
3. a kind of Analysis of energy metering instrument of count by time sharing according to claim 1, it is characterised in that: the resistance point
Volt circuit (102) is sampled using precision resistance, and CT sample circuit (104) is sampled using active compensation current transformer.
4. a kind of Analysis of energy metering instrument of count by time sharing according to claim 1, it is characterised in that: the analyzer
It is only applicable to alternating current circuit, signal acquisition method are as follows: a cycle samples at 512 points, and three-phase voltage, three-phase current signal are synchronous
Sampling, often converts a data, and data processing unit all reads the data of 6 road signals from A/D chip in time and deposited
Storage, after the completion of a cycle conversion output, calculation process module begins to calculate three-phase voltage, electric current, active power, idle function
The electric parameters such as rate, apparent energy, phase and frequency.
5. it is a kind of have valuate at times without meter charging method, it is characterised in that: the following steps are included:
S01, old electric energy meter are connected by terminal box to the secondary side lead of power supply line and corresponding current transformer, using connecing
Wire box Analysis of energy metering instrument in parallel in power supply line；
S02 disconnects the connection between old electric energy meter and power supply line, while the real-time accumulated power supply by Analysis of energy metering instrument
Amount；
New electric energy meter is accessed power supply line according to the connection type of old electric energy meter and starts real-time accumulated power supply volume, simultaneously by S03
Analysis of energy metering instrument stops accumulative power supply volume, obtain in new, old electric energy meter replacement process without power supply volume total during table；
S04, Analysis of energy metering instrument calculate new, old electric energy meter replacement according to taximeter at times and without power supply volume total during table
In the process without total electricity bill during table；
S05 removes Analysis of energy metering instrument.
6. it is according to claim 5 it is a kind of have valuate at times without meter charging method, it is characterised in that: the S02
Particular content is as follows: before old electric energy meter is changed, first pass through vectogram check Analysis of energy metering instrument the mode of connection whether
Correctly；Then relevant parameter is inputted on Analysis of energy metering instrument；By the corresponding scribing of mobile terminal box, old ammeter is cut off
Old ammeter is removed after voltage circuit again, while by the corresponding scribing of mobile terminal box, each current transformer is connected to electric energy
Quantitative analysis instrument presses " beginning " key of Analysis of energy metering instrument, starts accumulative power supply volume.
7. it is according to claim 5 it is a kind of have valuate at times without meter charging method, it is characterised in that: the step
S03 particular content is as follows: after new electric energy meter thereto, by the corresponding scribing of mobile terminal box, new electric energy meter being passed through
Terminal box is connected to power supply line, and each current transformer is connected to new electric energy meter, while pressing " stopping for Analysis of energy metering instrument
Only " key stops accumulative power supply volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910024092.XA CN109541300A (en) | 2019-01-10 | 2019-01-10 | A kind of the Analysis of energy metering instrument and its application method of count by time sharing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910024092.XA CN109541300A (en) | 2019-01-10 | 2019-01-10 | A kind of the Analysis of energy metering instrument and its application method of count by time sharing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109541300A true CN109541300A (en) | 2019-03-29 |
Family
ID=65834741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910024092.XA Pending CN109541300A (en) | 2019-01-10 | 2019-01-10 | A kind of the Analysis of energy metering instrument and its application method of count by time sharing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109541300A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001531A (en) * | 2018-07-27 | 2018-12-14 | 宁波三星智能电气有限公司 | A kind of electric energy meter electricity without battery type time-sharing measurement method |
| CN110673083A (en) * | 2019-11-13 | 2020-01-10 | 云南电网有限责任公司电力科学研究院 | Direct current standard source device for detecting electric energy meter metering error |
| CN110907678A (en) * | 2019-12-16 | 2020-03-24 | 杭州海兴电力科技股份有限公司 | Rate electric energy compensation metering method for IR46 multi-core modular intelligent electric energy meter |
| CN111044781A (en) * | 2019-12-30 | 2020-04-21 | 广东电网有限责任公司 | Electric energy meter time-sharing electric quantity calculation method and device and computer equipment |
| CN111474396A (en) * | 2020-04-23 | 2020-07-31 | 国网天津市电力公司 | Electric energy meter with electric meter changing function |
| CN111948597A (en) * | 2020-08-24 | 2020-11-17 | 国网四川省电力公司电力科学研究院 | Electric energy error back-compensation electric energy calculation method based on load curve sectional statistical analysis |
| CN112133029A (en) * | 2020-09-15 | 2020-12-25 | 赵敏 | Real-time electric quantity charging settlement method for electric energy meter replacement |
| CN113075449A (en) * | 2021-03-26 | 2021-07-06 | 国网江苏省电力有限公司镇江供电分公司 | Portable electric quantity measuring instrument |
| CN113325232A (en) * | 2021-06-09 | 2021-08-31 | 贵州电网有限责任公司 | Electric quantity compensation device and method based on load record of electric energy meter |
| CN113702677A (en) * | 2021-08-04 | 2021-11-26 | 国网浙江杭州市富阳区供电有限公司 | Uninterrupted meter changing method and device with meter reading number updating function |
| CN113791273A (en) * | 2021-07-26 | 2021-12-14 | 广东电网有限责任公司广州供电局 | Electric quantity compensation method, device, system and storage medium |
| CN114945828A (en) * | 2020-01-16 | 2022-08-26 | 三菱电机楼宇解决方案株式会社 | Energy usage amount calculation device, usage electric power amount monitoring system, and program |
| CN115754397A (en) * | 2022-10-31 | 2023-03-07 | 云南电网有限责任公司昆明供电局 | Multifunctional testing system and method for seamlessly connecting high-precision calculation of electric quantity |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507995A (en) * | 2011-11-11 | 2012-06-20 | 天津市电力公司 | Online electric quantity compensating device |
| CN103033682A (en) * | 2012-11-12 | 2013-04-10 | 浙江涵普电力科技有限公司 | High-precision three-phase power meter and metering method thereof |
| CN104374966A (en) * | 2013-08-15 | 2015-02-25 | 施耐德电气工业公司 | Modularizing time-sharing electric energy metering system |
| CN106053931A (en) * | 2016-08-09 | 2016-10-26 | 河南森尼瑞电气有限公司 | Relay protection device based on 12-bit AD in SOC chip |
| CN106370926A (en) * | 2015-07-20 | 2017-02-01 | 国网河南省电力公司平顶山供电公司 | Missing electric quantity recorder for electric energy meter changing work and using method thereof |
| CN106786265A (en) * | 2017-02-14 | 2017-05-31 | 邹文峰 | Multifunctional combined terminal box |
| CN209446667U (en) * | 2019-01-10 | 2019-09-27 | 国网青海省电力公司电力科学研究院 | A kind of Analysis of energy metering instrument of count by time sharing |
-
2019
- 2019-01-10 CN CN201910024092.XA patent/CN109541300A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507995A (en) * | 2011-11-11 | 2012-06-20 | 天津市电力公司 | Online electric quantity compensating device |
| CN103033682A (en) * | 2012-11-12 | 2013-04-10 | 浙江涵普电力科技有限公司 | High-precision three-phase power meter and metering method thereof |
| CN104374966A (en) * | 2013-08-15 | 2015-02-25 | 施耐德电气工业公司 | Modularizing time-sharing electric energy metering system |
| CN106370926A (en) * | 2015-07-20 | 2017-02-01 | 国网河南省电力公司平顶山供电公司 | Missing electric quantity recorder for electric energy meter changing work and using method thereof |
| CN106053931A (en) * | 2016-08-09 | 2016-10-26 | 河南森尼瑞电气有限公司 | Relay protection device based on 12-bit AD in SOC chip |
| CN106786265A (en) * | 2017-02-14 | 2017-05-31 | 邹文峰 | Multifunctional combined terminal box |
| CN209446667U (en) * | 2019-01-10 | 2019-09-27 | 国网青海省电力公司电力科学研究院 | A kind of Analysis of energy metering instrument of count by time sharing |
Non-Patent Citations (2)
| Title |
|---|
| 尉忠友: "工业企业能源计量与管理技术指南", vol. 2007, 31 December 2007, 中国环境科学出版社, pages: 107 - 108 * |
| 李裕能 等: "电路（上）", vol. 2004, 31 July 2004, 武汉大学出版社, pages: 182 - 183 * |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001531A (en) * | 2018-07-27 | 2018-12-14 | 宁波三星智能电气有限公司 | A kind of electric energy meter electricity without battery type time-sharing measurement method |
| CN109001531B (en) * | 2018-07-27 | 2020-10-27 | 宁波三星智能电气有限公司 | Battery-free time-sharing method for electric energy of electric energy meter |
| CN110673083A (en) * | 2019-11-13 | 2020-01-10 | 云南电网有限责任公司电力科学研究院 | Direct current standard source device for detecting electric energy meter metering error |
| CN110673083B (en) * | 2019-11-13 | 2020-11-27 | 云南电网有限责任公司电力科学研究院 | Direct current standard source device for detecting electric energy meter metering error |
| CN110907678A (en) * | 2019-12-16 | 2020-03-24 | 杭州海兴电力科技股份有限公司 | Rate electric energy compensation metering method for IR46 multi-core modular intelligent electric energy meter |
| CN111044781A (en) * | 2019-12-30 | 2020-04-21 | 广东电网有限责任公司 | Electric energy meter time-sharing electric quantity calculation method and device and computer equipment |
| CN111044781B (en) * | 2019-12-30 | 2022-04-01 | 广东电网有限责任公司 | Electric energy meter time-sharing electric quantity calculation method and device and computer equipment |
| CN114945828A (en) * | 2020-01-16 | 2022-08-26 | 三菱电机楼宇解决方案株式会社 | Energy usage amount calculation device, usage electric power amount monitoring system, and program |
| CN114945828B (en) * | 2020-01-16 | 2024-03-12 | 三菱电机楼宇解决方案株式会社 | Monitoring system for using electric power |
| CN111474396A (en) * | 2020-04-23 | 2020-07-31 | 国网天津市电力公司 | Electric energy meter with electric meter changing function |
| CN111948597A (en) * | 2020-08-24 | 2020-11-17 | 国网四川省电力公司电力科学研究院 | Electric energy error back-compensation electric energy calculation method based on load curve sectional statistical analysis |
| CN112133029A (en) * | 2020-09-15 | 2020-12-25 | 赵敏 | Real-time electric quantity charging settlement method for electric energy meter replacement |
| CN113075449A (en) * | 2021-03-26 | 2021-07-06 | 国网江苏省电力有限公司镇江供电分公司 | Portable electric quantity measuring instrument |
| CN113325232A (en) * | 2021-06-09 | 2021-08-31 | 贵州电网有限责任公司 | Electric quantity compensation device and method based on load record of electric energy meter |
| CN113325232B (en) * | 2021-06-09 | 2023-02-17 | 贵州电网有限责任公司 | Electric quantity compensation device and method based on load record of electric energy meter |
| CN113791273A (en) * | 2021-07-26 | 2021-12-14 | 广东电网有限责任公司广州供电局 | Electric quantity compensation method, device, system and storage medium |
| CN113702677A (en) * | 2021-08-04 | 2021-11-26 | 国网浙江杭州市富阳区供电有限公司 | Uninterrupted meter changing method and device with meter reading number updating function |
| CN113702677B (en) * | 2021-08-04 | 2024-05-24 | 国网浙江杭州市富阳区供电有限公司 | Uninterrupted meter changing method and device with meter number updating and reading functions |
| CN115754397A (en) * | 2022-10-31 | 2023-03-07 | 云南电网有限责任公司昆明供电局 | Multifunctional testing system and method for seamlessly connecting high-precision calculation of electric quantity |
| CN115754397B (en) * | 2022-10-31 | 2023-12-05 | 云南电网有限责任公司昆明供电局 | Multifunctional testing system and method for seamless connection high-precision electric quantity calculation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109541300A (en) | A kind of the Analysis of energy metering instrument and its application method of count by time sharing | |
| CN209446667U (en) | A kind of Analysis of energy metering instrument of count by time sharing | |
| CN201352235Y (en) | Three-phase multifunctional electric energy meter | |
| CN201732120U (en) | Power consumption information collecting and monitoring system in base station | |
| CN106370926A (en) | Missing electric quantity recorder for electric energy meter changing work and using method thereof | |
| CN100535951C (en) | Loading control and multi-channel time-shared charge electric energy combined management system and its implementing method | |
| CN103645457A (en) | On-site inspection device for electric energy meter | |
| CN111721988B (en) | Measuring device electricity quantity compensation measuring and calculating instrument and method | |
| CN101086512A (en) | Digitalized electric energy metering system | |
| CN206863116U (en) | Direct current multifunctional electric energy meter | |
| CN110133562A (en) | A kind of Secondary Circuit of Potential Transformer pressure drop on-site test system and method | |
| CN206470388U (en) | The apparatus for evaluating of metering performance under dynamic load | |
| CN105372620A (en) | Power metering detector | |
| CN200996971Y (en) | Composite electric-energy managing system of load control and multiplexing time-sharing charging | |
| CN105182022A (en) | Electric quantity depositing device and method during meter installation, power connection and exchange | |
| CN105353331A (en) | Electronic transformer metering performance detection system and method | |
| CN101452638B (en) | Electrical energy meter or power load administrative terminal verifying device | |
| CN105093161A (en) | Gateway electric energy meter online replacing mode electric quantity loss compensation metering system | |
| CN102981069A (en) | Electric energy comprehensive information acquisition terminal | |
| CN204010299U (en) | Low pressure concentrator | |
| CN112505613B (en) | Method and system for estimating fault loss electric quantity of high-voltage supply and high-voltage metering full-voltage loss metering | |
| CN205176249U (en) | Electronic transformer metering performance detection device | |
| CN201126447Y (en) | Numeralization electric energy metered system | |
| CN101413993B (en) | Apparatus for on-line conversing each battery voltage in battery pack | |
| CN204945239U (en) | Electric quantity loss compensate for malfunctions device under the online substitute mode of a kind of gate energy meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |