CN109581014A - A kind of electric energy meter line metering method off zero - Google Patents
A kind of electric energy meter line metering method off zero Download PDFInfo
- Publication number
- CN109581014A CN109581014A CN201811508084.4A CN201811508084A CN109581014A CN 109581014 A CN109581014 A CN 109581014A CN 201811508084 A CN201811508084 A CN 201811508084A CN 109581014 A CN109581014 A CN 109581014A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000005611 electricity Effects 0.000 claims description 10
- 230000007935 neutral effect Effects 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
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- 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
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Testing Relating To Insulation (AREA)
Abstract
Punishment mode and line quantitative model off zero is arranged by the main control chip of electric energy meter in a kind of electric energy meter line metering method off zero, step 1；Step 2 judges whether electric energy meter opens line quantitative model switch off zero, if so, being then transferred to step 3；If not, terminating；Step 3, the event for detecting the whether despiteful line stealing off zero of user, if any then recording line event off zero, and be transferred to step 4；If it has not, being then transferred to step 5；Step 4, the main control chip starting punishment mode of electric energy meter, and punishment record is generated, and go to step 2；Step 5 judges whether the metering chip of electric energy meter uses punishment mode, if so, step 6 is then transferred to, if not, being transferred to step 7；Step 6, the metering chip of electric energy meter exit punishment mode, and record line End Event off zero, and be transferred to step 2；Step 7, electric energy meter are measured according to normal quantitative model, and are transferred to step 2.Stealing event is recorded and punished, trackability is strong and reduces loss.
Description
Technical field
The present invention relates to power domain, in particular to a kind of electric energy meter line metering method off zero.
Background technique
With ammeter skill upgrading, power office and user are higher and higher to ammeter quality and reliability requirement while more next
More people, which start to try every possible means, to sneak current, so that reaching individual underpays expense purpose, power office faces extreme loss.
Most of current electric energy meter carries out sampling metering using copper-manganese and CT combination, deliberately makes the zero of meter in user
Line disconnect, indoors be grounded situation under, meter by power down stop measure, user still can normal use, counted less so reaching ammeter
Purpose, the charge of extreme influence power office, and to being unfair property of normal users；In addition high to power department maintenance cost, it can
Retrospective is poor, and time-consuming, and is also easy to produce dispute.
Have application No. is the Chinese invention patent of CN201610579428.5 (application publication number CN105954555A) public affairs
A kind of detection method and device of line stealing off zero are opened, comprising: utilize the phase line of clamp on amperemeter measurement ammeter source side；If
Clamp on amperemeter measures current value, then the zero curve of the ammeter source side is measured using clamp on amperemeter；If clamp on amperemeter
It is unmeasured to arrive current value, it is determined that be line stealing off zero；This method can accurate detection user whether there is line stealing off zero
Phenomenon, to guarantee the equity of power supply enterprise；The invention also discloses a kind of detection device of line stealing off zero, the line stealing off zero
Detection device can accurate detection user whether there is line stealing electricity phenomenon off zero.But it can only be to line stealing off zero in this method
Behavior is detected, but cannot be recorded to line electricity stealing off zero, and cannot retrieve the damage occurred when line stealing off zero
It loses.
Summary of the invention
The technical problem to be solved by the invention for the present situation of prior art is to provide one kind to malice stealing event into
The electric energy meter line metering method off zero of row record and punishment.
The technical scheme of the invention to solve the technical problem is: a kind of electric energy meter line metering method off zero,
It is characterized in that: the following steps are included:
Punishment mode and line quantitative model off zero is arranged by the main control chip of electric energy meter in step 1；
Step 2 judges whether electric energy meter opens line quantitative model switch off zero, if so, being then transferred to step 3；If not, knot
Beam；
Step 3, the event for detecting the whether despiteful line stealing off zero of user, if any then recording line event off zero, and turn
Enter step 4；If it has not, being then transferred to step 5；
Step 4, the main control chip starting punishment mode of electric energy meter, and punishment record is generated, and go to step 2；
Step 5 judges whether the metering chip of electric energy meter uses punishment mode, if so, step 6 is then transferred to, if not, turning
Enter step 7；
Step 6, the metering chip of electric energy meter exit punishment mode, and record line End Event off zero, and be transferred to step 2；
Step 7, the metering chip of electric energy meter are measured according to normal quantitative model, and are transferred to step 2.
Specifically, detecting the whether despiteful line stealing event off zero of user in the step 3 method particularly includes:
Step 3-1, judge whether the difference between firewire electric current and neutral line current is greater than the first threshold values and hot voltage is small
In the second threshold values, if so, being then transferred to step 3-2；If not, malice stealing event is not present, terminate；
Step 3-2, judge that difference between firewire electric current and neutral line current is greater than the first threshold values and hot voltage is less than the
Whether two threshold values durations are greater than delay time, if so, being then transferred to step 3-3；If not, the line off zero of malice is not present
Stealing event terminates；
Step 3-3, there are the line stealing events off zero of malice.
As an improvement, recording in the step 3 includes the time for recording line event off zero and occurring in line event off zero.
As an improvement, the metering chip of electric energy meter is counted according to punishment mode after starting punishment mode in the step 4
Amount, wherein punish the power output calculation formula of mode are as follows: P=Un*I, I are the firewire electric current after stealing, and Un is electric energy meter work
Normal voltage when making.
In the present solution, in the step 4 punish metering process by liquid crystal display instruction, and the flashlight of electric energy meter according to
Punish electricity output.
Further, after exiting punishment mode in the step 6, the metering chip of electric energy meter according to normal quantitative model into
Row metering, the power output calculation formula of normal quantitative model are as follows: P=Un*I, wherein I is firewire electric current when working normally,
Un is normal voltage when electric energy meter works.
Further, record in the step 6 includes recording the time that line event off zero terminates in line End Event off zero.
Further, the first threshold values value range is 0.05A~10A.
Further, the value range of second threshold values is 20V~400V.
Further, the value range of the delay time is 5s~3600s.
Compared with the prior art, the advantages of the present invention are as follows: by carrying out malice stealing using line mode off zero to user
Behavior detected, and record stealing event, and punish the electricity stealing by starting punishment mode, and continue to examine
The malice electricity stealing for surveying user then exits punishment mode, by normally measuring mould when detecting that malice electricity stealing stops
Formula is measured；Therefore it can effectively retrieve power department by punishment mode to lose, and the behavior to user's malice stealing
There is certain warning, and by recording line event off zero and line End Event off zero, facilitates user and power department to trace, have
Good practical value.
Detailed description of the invention
Fig. 1 is the flow chart of the electric energy meter line metering method off zero in the embodiment of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figure 1, a kind of electric energy meter line metering method off zero, comprising the following steps:
Punishment mode and line quantitative model off zero is arranged by the main control chip of electric energy meter in step 1；
Step 2 judges whether electric energy meter opens line quantitative model switch off zero, if so, being then transferred to step 3；If not, knot
Beam；
Step 3, the event for detecting the whether despiteful line stealing off zero of user, if any then recording line event off zero, and turn
Enter step 4；If it has not, being then transferred to step 5；Wherein, recording includes the time for recording line event off zero and occurring in line event off zero；
In the present embodiment, the detection whether despiteful line stealing event off zero of user method particularly includes:
Step 3-1, judge whether the difference between firewire electric current and neutral line current is greater than the first threshold values and hot voltage is small
In the second threshold values, if so, being then transferred to step 3-2；If not, malice stealing event is not present, terminate；The value model of first threshold values
It encloses for 0.05A~10A, the value range of the second threshold values is 20V~400V；In the present embodiment, the first threshold values is 1A, the second threshold values
For 40V；
Step 3-2, judge that difference between firewire electric current and neutral line current is greater than the first threshold values and hot voltage is less than the
Whether two threshold values durations are greater than delay time, if so, being then transferred to step 3-3；If not, the line off zero of malice is not present
Stealing event terminates；The value range of delay time is 5s~3600s, and in the present embodiment, delay time 60s can be according to reality
Border requires to be arranged to different values；
Step 3-3, there are the line stealing events off zero of malice.
Step 4, the main control chip starting punishment mode of electric energy meter, and punishment record is generated, and go to step 2；
Wherein, after starting punishment mode, the metering chip of electric energy meter is measured according to punishment mode, wherein punishment mould
The power output calculation formula of formula are as follows: P=Un*I, I are the firewire electric current after stealing, and Un is normal voltage when electric energy meter works；
And punishment metering process is indicated by liquid crystal display, and the flashlight of electric energy meter is exported according to punishment electricity.
Step 5 judges whether the metering chip of electric energy meter uses punishment mode, if so, step 6 is then transferred to, if not, turning
Enter step 7；
Step 6, the metering chip of electric energy meter exit punishment mode, and record line End Event off zero, and be transferred to step 2；
Wherein, after exiting punishment mode, the metering chip of electric energy meter is measured according to normal quantitative model, normal to measure
The power output calculation formula of mode are as follows: P=Un*I, wherein I is firewire electric current when working normally, and Un is electric energy meter work
When normal voltage；It include recording the time that line event off zero terminates in the line End Event off zero of record.
Step 7, the metering chip of electric energy meter are measured according to normal quantitative model, and are transferred to step 2.
This method is especially suitable for double loop electric energy meter and there are relay class electric energy meters, is opened by line metering module off zero
Pass controls whether to open line quantitative model off zero, when detecting line stealing event off zero, then records line event off zero and record
The time that line event off zero starts, and by starting punishment mode, user's malice electricity stealing is punished, and punish process
It is indicated by liquid crystal display, the flashlight of electric energy meter is indicated, therefore can understand in time according to punishment mode output by alarm lamp
The abnormal conditions of each electric energy meter；At the end of user's malice electricity stealing, then punishment mode is exited accordingly, can adjust in time
Metering method only punishes when there is malice stealing user that therefore metering method is more reasonable, and can pass through record into
Row retrospect, maintenance cost are low.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of electric energy meter line metering method off zero, it is characterised in that: the following steps are included:
Punishment mode and line quantitative model off zero is arranged by the main control chip of electric energy meter in step 1；
Step 2 judges whether electric energy meter opens line quantitative model switch off zero, if so, being then transferred to step 3；If not, terminating；
Step 3, the event for detecting the whether despiteful line stealing off zero of user, if any then recording line event off zero, and be transferred to step
Rapid 4；If it has not, being then transferred to step 5；
Step 4, the main control chip starting punishment mode of electric energy meter, and punishment record is generated, and go to step 2；
Step 5 judges whether the metering chip of electric energy meter uses punishment mode, if so, step 6 is then transferred to, if not, being transferred to step
Rapid 7；
Step 6, the metering chip of electric energy meter exit punishment mode, and record line End Event off zero, and be transferred to step 2；
Step 7, the metering chip of electric energy meter are measured according to normal quantitative model, and are transferred to step 2.
2. electric energy meter line metering method off zero according to claim 1, it is characterised in that: detect user in the step 3
Whether despiteful line stealing event off zero method particularly includes:
Step 3-1, judge whether the difference between firewire electric current and neutral line current is greater than the first threshold values and hot voltage is less than
Two threshold values, if so, being then transferred to step 3-2；If not, malice stealing event is not present, terminate；
Step 3-2, judge that the difference between firewire electric current and neutral line current is greater than the first threshold values and hot voltage less than the second valve
Whether value duration is greater than delay time, if so, being then transferred to step 3-3；If not, the line stealing off zero of malice is not present
Event terminates；
Step 3-3, there are the line stealing events off zero of malice.
3. electric energy meter line metering method off zero according to claim 2, it is characterised in that: recorded in the step 3 off zero
It include the time for recording line event off zero and occurring in line event.
4. electric energy meter line metering method off zero according to claim 1, it is characterised in that: start punishment in the step 4
After mode, the metering chip of electric energy meter is measured according to punishment mode, wherein punishes the power output calculation formula of mode
Are as follows: P=Un*I, I are the firewire electric current after stealing, and Un is normal voltage when electric energy meter works.
5. electric energy meter line metering method off zero according to claim 4, it is characterised in that: the electric energy meter has liquid crystal display
And flashlight, punishment metering process is indicated by liquid crystal display in the step 4, and the flashlight of electric energy meter is according to punishing that electricity is defeated
Out.
6. electric energy meter line metering method off zero according to claim 1, it is characterised in that: exit punishment in the step 6
After mode, the metering chip of electric energy meter is measured according to normal quantitative model, and the power output of normal quantitative model calculates public
Formula are as follows: P=Un*I, wherein I is firewire electric current when working normally, and Un is normal voltage when electric energy meter works.
7. electric energy meter line metering method off zero according to claim 6, it is characterised in that: recorded in the step 6 off zero
It include recording the time that line event off zero terminates in line End Event.
8. electric energy meter line metering method off zero according to claim 2, it is characterised in that: the first threshold values value range
For 0.05A~10A.
9. electric energy meter line metering method off zero according to claim 2, it is characterised in that: the value model of second threshold values
It encloses for 20V~400V.
10. electric energy meter line metering method off zero according to claim 2, it is characterised in that: the value of the delay time
Range is 5s~3600s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508084.4A CN109581014B (en) | 2018-12-11 | 2018-12-11 | Method for measuring broken zero line of electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508084.4A CN109581014B (en) | 2018-12-11 | 2018-12-11 | Method for measuring broken zero line of electric energy meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109581014A true CN109581014A (en) | 2019-04-05 |
| CN109581014B CN109581014B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811508084.4A Active CN109581014B (en) | 2018-12-11 | 2018-12-11 | Method for measuring broken zero line of electric energy meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983276A (en) * | 2020-07-01 | 2020-11-24 | 宁波三星医疗电气股份有限公司 | Electricity stealing prevention method for double-loop electric energy meter |
| CN113391120A (en) * | 2021-05-31 | 2021-09-14 | 宁波迦南智能电气股份有限公司 | Electric energy metering method for single-phase meter with live wire or zero wire falling |
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| CN109581014B (en) | 2024-02-02 |
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