CN204595089U - A kind of integral type electric energy meter - Google Patents
A kind of integral type electric energy meter Download PDFInfo
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- CN204595089U CN204595089U CN201520030087.7U CN201520030087U CN204595089U CN 204595089 U CN204595089 U CN 204595089U CN 201520030087 U CN201520030087 U CN 201520030087U CN 204595089 U CN204595089 U CN 204595089U
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- electric energy
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- energy meter
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Abstract
A kind of integral type electric energy meter, comprise voltage signal sampling unit, current signal sampling unit and metering communication unit, described current signal sampling unit adopts LPCT coil to be installed in electric energy meter, this current signal sampling unit one end is connected with loaded line, and the other end is connected with metering communication unit; Described voltage signal sampling unit adopts screw to be installed in electric energy meter, and voltage signal sampling unit one end is connected with loaded line, and the other end is connected with metering communication unit; Described metering communication unit sealing is arranged in bottom cavity, and this bottom cavity is sealed by mounting base; The beneficial effects of the utility model are: this electric energy meter can realize Whole verification, and error precision grade is uniquely determined, there is not the problem that outside human factor affects overall measuring accuracy.
Description
Technical field
The utility model belongs to power measurement field, relates to a kind of integral type electric energy meter being mainly used in electric energy metrical.
Background technology
At present along with the development of national economy, the consumption of electric energy is increasing, and electric energy meter relates to the interests for electricity consumption both sides as the important measurement instrument of electric energy metrical, its accurate measurement, just extremely important.The measuring apparatus adopted in traditional " high for low meter " metering method mainly contains two kinds of modes: 1, adopt when 100A and following electric current to adopt mutual inductor and electric energy meter to add when direct access electric energy meter 2, more than 100A to be connected wire and form, but two kinds of modes exist following drawback:
When 1, adopting direct access electric energy meter during below 80-100A electric current:
A, cause the loose contact of contact place when easily there is load fluctuation, occur to burn table tail phenomenon.
2, mutual inductor is adopted to add electric energy meter mode when measuring:
A, mutual inductor, electric energy meter design respectively, and Performance Match is poor;
The precision of b, mutual inductor, electric energy meter verifies respectively, and after being combined to one piece, the precision of measuring apparatus is not uniquely determine;
C, between mutual inductor with electric energy meter, need wire to be connected, there is the problem that human factor affects overall measuring accuracy;
D, easily appearance change mutual inductor ratio or mistake take advantage of no-load voltage ratio to occur leaking quantity calculation incorrect posting quantity problem;
F, measures of anti-stealing electricity are complicated, implement more difficult, and user's stealing are not easily found.
Summary of the invention
The purpose of this utility model is the deficiency overcoming prior art existence, and provides a kind of integral type electric energy meter without the need to external mutual inductor through optimizing.
The purpose of this utility model has been come by following technical solution, comprise voltage signal sampling unit, current signal sampling unit and metering communication unit, described current signal sampling unit adopts LPCT coil to be installed in electric energy meter, this current signal sampling unit one end is connected with loaded line, and the other end is connected with metering communication unit; Described voltage signal sampling unit adopts screw to be installed in electric energy meter, and voltage signal sampling unit one end is connected with loaded line, and the other end is connected with metering communication unit; Described metering communication unit sealing is arranged in product bottom cavity, and this bottom cavity is sealed by mounting base.
As preferably, the LPCT coil of described current signal sampling unit adopts magnetic material to be made.
As preferably, the described electric quantity data measured by metering communication unit by the upper LCDs display of table read by RF on the spot or by GPRS teletransmission to system main website.
The beneficial effects of the utility model are:
1, voltage signal sampling unit and metering units OVERALL OPTIMIZA-TION DESIGN FOR, directly show electricity, without the need to taking advantage of no-load voltage ratio;
2, mutual inductor and middle connection conductor part is saved, conserve space, energy-saving material-saving;
3, current capacity wire is through current sampling unit, with electric energy meter current loop connectionless point, there is not burning performance and resembles;
4, voltage signal sampling unit adopts high performance magnetic material, and graph of errors is similar to straight line;
5, this electric energy meter can realize Whole verification, and error precision grade is uniquely determined, there is not the problem that outside human factor affects overall measuring accuracy;
6, measuring terminal adopts GPRS teletransmission, adopts RF to read electricity on the spot, and convenient centralized management, meets intelligent grid demand for development;
7, electric energy meter is installed and can effectively electricity theft prevention phenomenon be occurred without the electric terminal that leaks outside on the line, without the need to adopting other measures of anti-stealing electricity, can effectively save anti-electricity-theft cost.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present utility model.
Fig. 2 is structural representation one of the present utility model.
Fig. 3 is structural representation two of the present utility model.
Label in accompanying drawing is respectively: 1, voltage signal sampling unit; 2, current signal sampling unit; 3, communication unit is measured; 4, LPCT coil; 5, electric energy meter; 6, screw; 7, bottom cavity; 8, mounting base.
Embodiment
Below in conjunction with accompanying drawing, detailed introduction is done to the utility model: as shown in accompanying drawing 1 to 3, the utility model comprises voltage signal sampling unit 1, current signal sampling unit 2 and metering communication unit 3, described current signal sampling unit 2 adopts LPCT coil 4 to be installed in electric energy meter 5, this current signal sampling unit 1 one end is connected with loaded line, and the other end is connected with metering communication unit 3; Described voltage signal sampling unit 1 adopts screw 6 to be installed in electric energy meter 5, and voltage signal sampling unit 1 one end is connected with loaded line, and the other end is connected with metering communication unit 3; Described metering communication unit 3 sealing is arranged in bottom cavity 7, and this bottom cavity 7 is sealed by mounting base 8.
The LPCT coil 4 of described current signal sampling unit 2 adopts magnetic material to be made, and measurable range of current is wide, and a winding is punching, and Secondary Winding is connected with metering communication unit.
Integrated electric energy meter principle of work of the present utility model is: voltage signal sampling unit 1 directly obtains voltage signal from load wire side, supply metering communication unit 3, current signal sampling unit 2 obtains current signal from load wire, through insulation isolation, electromagnetic screen and electrostatic prevention treatment and supplied metering communication unit 3, metering communication unit 3 obtains voltage signal from voltage signal sampling unit 1, current signal sampling unit 2 obtains current signal, electric quantity data is obtained through process, realize metering, the electric quantity data of metering measured by communication unit 3 can by the upper LCDs display of table, also can be read by RF on the spot, can also by GPRS teletransmission to system main website.
The utility model is not limited to above-mentioned embodiment; no matter do any change on its shape or material are formed; every employing structural design provided by the utility model, is all one distortion of the present utility model, all should thinks within the utility model protection domain.
Claims (3)
1. an integral type electric energy meter, it is characterized in that: comprise voltage signal sampling unit (1), current signal sampling unit (2) and metering communication unit (3), described current signal sampling unit (2) adopts LPCT coil (4) to be installed in electric energy meter (5), this current signal sampling unit (1) one end is connected with loaded line, and the other end is connected with metering communication unit (3); Described voltage signal sampling unit (1) adopts screw (6) to be installed in electric energy meter (5), and voltage signal sampling unit (1) one end is connected with loaded line, and the other end is connected with metering communication unit (3); Described metering communication unit (3) sealing is arranged in bottom cavity (7), and this bottom cavity (7) is sealed by mounting base (8).
2. integral type electric energy meter according to claim 1, is characterized in that: the LPCT coil (4) of described current signal sampling unit (2) adopts magnetic material to be made.
3. integral type electric energy meter according to claim 1, is characterized in that: the described electric quantity data measured by metering communication unit (3) by the upper LCDs display of table read by RF on the spot or by GPRS teletransmission to system main website.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520030087.7U CN204595089U (en) | 2015-01-16 | 2015-01-16 | A kind of integral type electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520030087.7U CN204595089U (en) | 2015-01-16 | 2015-01-16 | A kind of integral type electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204595089U true CN204595089U (en) | 2015-08-26 |
Family
ID=53931234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520030087.7U Active CN204595089U (en) | 2015-01-16 | 2015-01-16 | A kind of integral type electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204595089U (en) |
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2015
- 2015-01-16 CN CN201520030087.7U patent/CN204595089U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |