CN202929081U - Metering loop apparatus - Google Patents
Metering loop apparatus Download PDFInfo
- Publication number
- CN202929081U CN202929081U CN 201220604075 CN201220604075U CN202929081U CN 202929081 U CN202929081 U CN 202929081U CN 201220604075 CN201220604075 CN 201220604075 CN 201220604075 U CN201220604075 U CN 201220604075U CN 202929081 U CN202929081 U CN 202929081U
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- Prior art keywords
- current transformer
- energy meter
- electric energy
- metering
- merge cells
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- Expired - Lifetime
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- 238000005259 measurement Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 10
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Abstract
The utility model discloses a metering loop apparatus, comprising an electric energy meter, a merging unit and a current transformer, wherein the current transformer is connected with the merging unit and the electric energy meter for acquiring the electrical quantity of an intelligent transformer substation, the electrical quantity is input to the merging unit and the electric energy meter, the merging unit is used for merging and synchronization processing the electrical quantity input by the current transformer, the processed data signal is forwarded in a specific format, and the electric energy meter is used for charging according to the electrical quantity input by the current transformer. According to the metering loop apparatus, routine metering and intelligent measure requirements are satisfied simultaneously on the base that no independent current transformer is additionally provided.
Description
Technical field
The utility model relates to power domain, in particular to a kind of measurement loop device.
Background technology
At present, the current/voltage analog quantity of intelligent substation intelligent electric energy meter obtains by the mode of merge cells optical cable access watt-hour meter, but the gate energy meter traceability does not obtain national standard department and authenticates, and can't settle accounts a little as property right, therefore gate energy meter can't come into operation in intelligent substation.
In correlation technique, intelligent substation now adopts configuration one cover 0.2S special measuring current transformer, and the mode of cable thereto and conventional gate energy meter is to satisfy the metering demand.Simultaneously, configuration one cover 0.2S(or 0.5S) measure current transformer, the access merge cells satisfies the demand that intelligent substation is measured.
Fig. 1 is the schematic diagram according to the configuration mode of the current transformer of correlation technique, as shown in Figure 1, under this configuration mode, adopts a cover metering current mulual inductor that electric current is measured, and adopts a cover to measure current transformer and measures.Fig. 2 is the schematic diagram according to the measuring circuit of correlation technique, as shown in Figure 2, measures current transformer and is connected to 110kV circuit merge cells.Fig. 3 is the schematic diagram according to the measurement loop of correlation technique, and as shown in Figure 3, then the metering current mulual inductor thereto accesses electric energy meter and measure.
In sum, in correlation technique, owing to needing at least two cover current transformers to satisfy the demand that intelligent substation is measured and measure at the critical point, cause measurement loop complexity and cost higher.
The utility model content
The utility model aims to provide a kind of measurement loop device, to solve measurement loop complexity and the higher problem of cost in prior art.
To achieve these goals, according to an aspect of the present utility model, a kind of measurement loop device is provided, comprise: electric energy meter, merge cells summation current transformer, wherein, described current transformer, with described merge cells be connected electric energy meter and be connected, be used for gathering the electric parameters of intelligent substation, and with the described electric parameters described merge cells of input and described electric energy meter; Described merge cells be used for the described electric parameters of described current transformer input is merged and synchronous the processing, and the digital signal after processing forwards according to specific format; Described electric energy meter is used for the described electric parameters of described current transformer input is carried out charging.
Further, described device also comprises: terminal box is used for described current transformer is connected to described merge cells.
Further, described terminal box also is used for described current transformer is connected to described electric energy meter.
Further, described current transformer adopts the secondary connection method by terminal box, described electric energy meter to be contacted to described merge cells.
Further, described current transformer is the current transformer for metering of 0.2S.
Use the technical solution of the utility model, current transformer is connected to merge cells and electric energy meter simultaneously, is not increasing on the basis of current transformer independently, satisfy simultaneously the demand of conventional metering, intelligent measure mode, simplify measurement loop, reduced the cost of measurement loop.
Description of drawings
The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the configuration mode of the current transformer of correlation technique;
Fig. 2 is the schematic diagram according to the measuring circuit of correlation technique;
Fig. 3 is the schematic diagram according to the measurement loop of correlation technique;
Fig. 4 is the schematic diagram according to the measurement loop device of the utility model embodiment;
Fig. 5 is the structured flowchart according to the measurement loop device of the utility model embodiment; And
Fig. 6 is the process flow diagram according to the implementation method of the metering of the utility model embodiment.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
According to the utility model embodiment, a kind of measurement loop device is provided, use a cover current transformer to satisfy simultaneously the demand of conventional metering and intelligent measure mode.
Fig. 4 is the schematic diagram according to the measurement loop device of the utility model embodiment, and as shown in Figure 4, this device only comprises a cover current transformer.Below in conjunction with Fig. 5, the structure of the measurement loop device of the utility model embodiment is described.
Fig. 5 is the structured flowchart according to the measurement loop device of the utility model embodiment, as shown in Figure 5, this measurement loop device mainly comprises: electric energy meter, merge cells summation current transformer, wherein, current transformer, be connected with electric energy meter with merge cells, be used for gathering the electric parameters of intelligent substation, and electric parameters is inputted merge cells and electric energy meter; Merge cells be used for the electric parameters of current transformer input is merged and synchronous the processing, and the digital signal after processing forwards according to specific format; Electric energy meter is used for the electric parameters of current transformer input is carried out charging.
In the embodiment of the utility model embodiment, above-mentioned measurement loop device can also comprise: terminal box is used for current transformer is connected to merge cells.Further, above-mentioned terminal box also is used for current transformer is connected to electric energy meter.
Further, in the utility model embodiment, current transformer adopts the secondary connection method by terminal box, electric energy meter to be contacted to merge cells, and concrete connection as shown in Figure 5.
In the utility model embodiment, in order to satisfy simultaneously the demand of measuring and measuring, above-mentioned current transformer is the metering current mulual inductor of 0.2S.
Use the technical scheme of the utility model embodiment, not increasing on the basis of metering current mulual inductor independently, electric energy meter, terminal box are sealed in merge cells, satisfied simultaneously the demand of conventional metering, intelligent measure mode.
According to the utility model embodiment, a kind of implementation method of metering also is provided, the method is used a cover current transformer, satisfies simultaneously metering and measurement demand.
Fig. 6 is the process flow diagram according to the implementation method of the metering of the utility model embodiment, and as shown in Figure 6, the method comprises that mainly step S602 is to step S606:
Step S602, current transformer gathers the electric parameters of intelligent substation, and electric parameters is inputted merge cells and electric energy meter;
Step S604, merge cells merges and synchronous the processing the electric parameters of current transformer input, and the digital signal after processing forwards according to specific format;
Step S606, electric energy meter carries out charging to the electric parameters of current transformer input.
Further, electric current input electric energy meter and merge cells after above-mentioned current transformer will be changed, comprising: current transformer is inputted merge cells and electric energy meter by terminal box with electric parameters.
Further, in order to satisfy simultaneously the demand of measuring and measuring, current transformer is the metering current mulual inductor of 0.2S.
Use the technical solution of the utility model, after the current conversion of current transformer to intelligent substation, input simultaneously merge cells and electric energy meter, do not increasing on the basis of current transformer independently, satisfy simultaneously the demand of conventional metering, intelligent measure mode, simplify measurement loop, reduced the cost of measurement loop.
From above description, can find out, the utility model the above embodiments have realized following technique effect: not increasing on the basis of metering current mulual inductor independently, electric energy meter, terminal box are sealed in merge cells, satisfied simultaneously the demand of conventional metering, intelligent measure mode.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a measurement loop device, is characterized in that, comprising: electric energy meter, merge cells summation current transformer, wherein,
Described current transformer, with described merge cells be connected electric energy meter and be connected, be used for gathering the electric parameters of intelligent substation, and with the described electric parameters described merge cells of input and described electric energy meter;
Described merge cells be used for the described electric parameters of described current transformer input is merged and synchronous the processing, and the rear digital signal that will process forwards according to specific format;
Described electric energy meter is used for the described electric parameters of described current transformer input is carried out charging.
2. install according to claim 1, it is characterized in that, also comprise:
Terminal box is used for described current transformer is connected to described merge cells.
3. device according to claim 2, is characterized in that,
Described terminal box also is used for described current transformer is connected to described electric energy meter.
4. device according to claim 3, is characterized in that, described current transformer adopts the secondary connection method by terminal box, described electric energy meter to be contacted to described merge cells.
5. device according to claim 1, is characterized in that, described current transformer is the current transformer for metering of 0.2S.
6. device according to claim 2, is characterized in that, described current transformer is the current transformer for metering of 0.2S.
7. device according to claim 3, is characterized in that, described current transformer is the current transformer for metering of 0.2S.
8. device according to claim 4, is characterized in that, described current transformer is the current transformer for metering of 0.2S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220604075 CN202929081U (en) | 2012-11-15 | 2012-11-15 | Metering loop apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220604075 CN202929081U (en) | 2012-11-15 | 2012-11-15 | Metering loop apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202929081U true CN202929081U (en) | 2013-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220604075 Expired - Lifetime CN202929081U (en) | 2012-11-15 | 2012-11-15 | Metering loop apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN202929081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808998A (en) * | 2012-11-15 | 2014-05-21 | 国家电网公司 | Measuring loop device and measuring achieving method |
-
2012
- 2012-11-15 CN CN 201220604075 patent/CN202929081U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808998A (en) * | 2012-11-15 | 2014-05-21 | 国家电网公司 | Measuring loop device and measuring achieving method |
| WO2014075459A1 (en) * | 2012-11-15 | 2014-05-22 | 国家电网公司 | Metering circuit apparatus and method for implementing metering |
| CN103808998B (en) * | 2012-11-15 | 2017-11-28 | 国家电网公司 | Measurement loop device and the implementation method of metering |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |