CN203101468U - Field electricity-stealing detector - Google Patents
Field electricity-stealing detector Download PDFInfo
- Publication number
- CN203101468U CN203101468U CN 201220717213 CN201220717213U CN203101468U CN 203101468 U CN203101468 U CN 203101468U CN 201220717213 CN201220717213 CN 201220717213 CN 201220717213 U CN201220717213 U CN 201220717213U CN 203101468 U CN203101468 U CN 203101468U
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- electric energy
- energy meter
- current
- secondary winding
- transformer
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- 238000004804 winding Methods 0.000 claims abstract description 32
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 13
- 238000007689 inspection Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a field electricity-stealing detector. The field electricity-stealing detector is composed of a transformer and a current-limiting resistor R1, wherein the upper end of the primary winding of the transformer is connected with the live wire input end A of an electric energy meter, the lower end of the primary winding is connected with the zero wire end N of the electric energy meter, the upper end of the secondary winding of the transformer is connected with the upper end of the primary winding, and the lower end of the secondary winding is connected with the live wire output end A' of the electric energy meter via the current-limiting resistor R1; the current-limiting resistor R1 meets the formula defined in the specification, wherein R1 is a current-limiting resistance and has a unit of Ohm; I is the standard load current value born by the secondary winding, and has a value of 10 A; n is the transformation ratio of the transformer; and R2 is the equivalent resistance of a contact resistance and a conductor resistance after the connecting head and connecting clamp of the secondary winding terminal are connected with the electric energy meter, and has a unit of Ohm. The field electricity-stealing detector disclosed by the utility model has the active effects of being very convenient to use, high in detection accuracy, and capable of effectively reducing electricity-stealing phenomenon.
Description
Technical field
The utility model relates to a kind of on-the-spot stealing detector.
Background technology
Electricity filching behavior is meant to illegally occupy electric energy, is purpose not hand over or to pay tariff less, adopts illegal means not measure or measure less the behavior of electricity consumption.Looking into stealing is the difficult problem of electric industry department, not only can cause certain economic loss, and be unfavorable for energy-saving consumption-reducing.At present common electricity filching behavior mainly be the user by electric energy meter is transformed, reach few quantity calculation thereby it can't correctly be measured, underpay the purpose of the electricity charge.
When ordinarily resident user being carried out electricity consumption behavior inspection, exist actual load situation in the user family is not understood, perhaps current actual load is lower, can't carry out error testing to user's electric energy meter then and there.For the uncertain user who whether has electricity filching behavior, also be not easy to carry out large-scale field electric energy Watch Error test and wiring check, be difficult for the electricity filching behavior among a small circle that exists in the discovery ordinarily resident user family.
Summary of the invention
Technical problem to be solved in the utility model provides a kind ofly can verify effectively whether tested electric energy meter exists the on-the-spot stealing detector of electricity filching behavior.
The utility model adopts following technical scheme:
The utility model is made up of a transformer and current-limiting resistance R1; A winding upper end 1 of described transformer meets the live wire input end A of electric energy meter, a described winding lower end 2 meets the zero line side N of electric energy meter, 1 is connected on the Secondary Winding of described transformer upper end 3 and the winding, described Secondary Winding lower end 4 through current-limiting resistance R1 connect the live wire output terminals A of electric energy meter ';
The described current-limiting resistance R1 that states should satisfy following formula:
,
Wherein: R1 is a current-limiting resistance, and unit is Ω;
I is the scale load current value that Secondary Winding is born, value 10A;
N is a transformer voltage ratio;
R2 is described Secondary Winding terminal connections head and binding clip and the contact resistance after electric energy meter is connected and the equivalent resistance of conductor resistance, and unit is Ω.
Good effect of the present utility model is as follows: the corresponding wiring terminal that can the utility model be inserted user's electric energy meter in power utility check work whenever and wherever possible, flow back to the scale load electric current that pass is gone into 10A at user's electrical energy meter electricity, then according to the actual parameter of user's electric energy meter, whether verify this user's electric energy meter having good luck under this scale load electric current normal, if it is slower to find to have good luck, can judge tentatively that then there is electricity filching behavior in this user, very easy to use, and the accuracy in detection height can effectively reduce stealing electricity phenomenon.
Description of drawings
Accompanying drawing 1 is the utility model circuit theory diagrams.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of on-the-spot stealing detector is made up of a transformer and current-limiting resistance R1; A winding upper end 1 of described transformer meets the live wire input end A of electric energy meter, a described winding lower end 2 meets the zero line side N of electric energy meter, 1 is connected on the Secondary Winding of described transformer upper end 3 and the winding, described Secondary Winding lower end 4 through current-limiting resistance R1 connect the live wire output terminals A of electric energy meter ';
The scale load current value I that described Secondary Winding is born is decided to be 10A, transformer voltage ratio n gets 200, through measuring, described Secondary Winding terminal connections head and binding clip are 0.06 Ω with the contact resistance after electric energy meter is connected and the equivalent resistance R2 of conductor resistance, according to following formula:
, calculating the current-limiting resistance R1 that seals in the described Secondary Winding loop is 0.05 Ω.
Present embodiment is applicable to the situation that user's actual load is less, after connecting by the above-mentioned mode of connection during inspection, just flow back to the scale load electric current that pass has been gone into 10A at user's electrical energy meter electricity, whether verify this user's electric energy meter having good luck under this scale load electric current then normal, if it is slower to find to have good luck, can judge tentatively that then there is electricity filching behavior in this user.
The difference part of present embodiment and embodiment 1 is: the scale load current value I that described Secondary Winding is born is decided to be 12A, transformer voltage ratio n gets 180, through measuring, the Secondary Winding terminal connections head of described transformer and binding clip are 0.06 Ω with equivalent resistance R2 after contact resistance after electric energy meter is connected and conductor resistance add up to, according to following formula:
, calculate the current-limiting resistance R1 that seals in the described Secondary Winding loop and be about 0.042 Ω.The same with above-mentioned embodiment 1, whether the stealing instrument that adopts above-mentioned parameter to make also can be used to detect the user stealing, and its principle is the same.
Claims (1)
1. an on-the-spot stealing detector is characterized in that being made up of a transformer and current-limiting resistance R1; A winding upper end (1) of described transformer meets the live wire input end A of electric energy meter, a described winding lower end (2) meets the zero line side N of electric energy meter, (1) is connected on the Secondary Winding of described transformer upper end (3) and the winding, described Secondary Winding lower end (4) through current-limiting resistance R1 connect the live wire output terminals A of electric energy meter ';
The described current-limiting resistance R1 that states should satisfy following formula:
,
Wherein: R1 is a current-limiting resistance, and unit is Ω;
I is the scale load current value that Secondary Winding is born, value 10A;
N is a transformer voltage ratio;
R2 is described Secondary Winding terminal connections head and binding clip and the contact resistance after electric energy meter is connected and the equivalent resistance of conductor resistance, and unit is Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717213 CN203101468U (en) | 2012-12-24 | 2012-12-24 | Field electricity-stealing detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717213 CN203101468U (en) | 2012-12-24 | 2012-12-24 | Field electricity-stealing detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203101468U true CN203101468U (en) | 2013-07-31 |
Family
ID=48852858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220717213 Expired - Fee Related CN203101468U (en) | 2012-12-24 | 2012-12-24 | Field electricity-stealing detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203101468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226595A (en) * | 2018-01-03 | 2018-06-29 | 国网山东省电力公司平邑县供电公司 | The anti-electricity-theft detector of portable electronic intelligent electric energy meter |
-
2012
- 2012-12-24 CN CN 201220717213 patent/CN203101468U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226595A (en) * | 2018-01-03 | 2018-06-29 | 国网山东省电力公司平邑县供电公司 | The anti-electricity-theft detector of portable electronic intelligent electric energy meter |
| CN108226595B (en) * | 2018-01-03 | 2020-03-24 | 国网山东省电力公司平邑县供电公司 | Portable electronic intelligent electric energy meter anti-electricity-theft detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20161224 |