CN101178415A - Electrical energy meter anti-theft electricity technology - Google Patents
Electrical energy meter anti-theft electricity technology Download PDFInfo
- Publication number
- CN101178415A CN101178415A CNA2007100768586A CN200710076858A CN101178415A CN 101178415 A CN101178415 A CN 101178415A CN A2007100768586 A CNA2007100768586 A CN A2007100768586A CN 200710076858 A CN200710076858 A CN 200710076858A CN 101178415 A CN101178415 A CN 101178415A
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- Prior art keywords
- energy meter
- electrical energy
- current sensor
- theft electricity
- loop
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- 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.)
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Abstract
The invention relates to an electric larceny proof technology of an electric energy meter, which achieves the aim of testing the electric larceny of a short current sensor by testing a loop parameter of the electric energy meter current sensor. A magnetic loop transformer can be used for testing the parameter of the current sensor loop or testing the parameter of the current sense directly.
Description
Affiliated technical field
The invention belongs to the electric energy metrical technical field, relate to electrical energy meter anti-theft electricity technology.
Background technology
Electric energy metrical technical field, anti-theft electricity technology are problems that receives publicity always.Present maximum electricity filching means of usefulness, the current sensor that uses of short circuit metering nothing more than, therefore and the anti-theft electricity technology that is born, using maximum is exactly the current difference of comparing in inner live wire of ammeter and the zero line, and whether the judgement stealing to be; This installs require for user's supply line must standard, otherwise error will be arranged, even can not use at all; In the middle of actual the supply line of standard just other, almost can not find on a large scale, so this kind anti-theft electricity technology can only rest in theory, on the advertising, almost do not have practical.
Summary of the invention
The present invention reaches the purpose that prevents the stealing of short-circuit current sensor by detecting the loop parameter of electrical energy meter electricity flow sensor;
Technical scheme provided by the present invention is: with the loop of the inner serial connection of electric energy meter current sensor, pass a magnetic ring transformer and be connected to output terminal, the current sensor loop is exactly the secondary winding of magnetic ring transformer like this; When the current sensor loop just often, a suitable underloading loop, little to the influence of the primary electrical sensibility reciprocal of magnetic ring transformer, and when current sensor loop during by short circuit, the secondary loop of magnetic ring transformer that has been exactly short circuit, the primary electrical sensibility reciprocal of magnetic ring transformer will significantly reduce; Just can judge whether to have taken place stealing as long as detect the primary electrical sensibility reciprocal of magnetic ring transformer.If current sensor is a resistance, the resistance that also can directly detect current sensor diminishes, and judges stealing has taken place.
Beneficial effect of the present invention: in the face of actual supply line of simplifying, rely on comparison zero live wire electric current, traditional anti-theft electricity technology can't be used; Technological means provided by the invention is not minded the simplification of supply line, as long as table has been received in the supply line, just can find stealing, and this will make the real practicability of anti-theft electricity technology of electric energy meter.
Embodiment
Adopt the magnet ring of an internal diameter 10MM, make elementary winding, will have the live wire loop of current sensor, pass magnetic ring transformer with enameled wire coiling 100 circles of 0.2MM; Stealing has taken place as the oscillator coil of a LC oscillator by detecting the rising of LC oscillator frequency, judging in the elementary winding of magnetic ring transformer.
Claims (2)
1. an electrical energy meter anti-theft electricity technology is characterized in that: the loop parameter that detects the electrical energy meter electricity flow sensor;
2. electrical energy meter anti-theft electricity technology according to claim 1, its further feature is: if current sensor is a resistance, directly detect the resistance of current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100768586A CN101178415A (en) | 2007-09-03 | 2007-09-03 | Electrical energy meter anti-theft electricity technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100768586A CN101178415A (en) | 2007-09-03 | 2007-09-03 | Electrical energy meter anti-theft electricity technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101178415A true CN101178415A (en) | 2008-05-14 |
Family
ID=39404747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100768586A Pending CN101178415A (en) | 2007-09-03 | 2007-09-03 | Electrical energy meter anti-theft electricity technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101178415A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353274A (en) * | 2015-11-25 | 2016-02-24 | 国网辽宁省电力有限公司阜新供电公司 | Electricity larceny prevention method |
-
2007
- 2007-09-03 CN CNA2007100768586A patent/CN101178415A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353274A (en) * | 2015-11-25 | 2016-02-24 | 国网辽宁省电力有限公司阜新供电公司 | Electricity larceny prevention method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080514 |