CN213934178U - Full-automatic electric energy meter on-site calibration device - Google Patents
Full-automatic electric energy meter on-site calibration device Download PDFInfo
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- CN213934178U CN213934178U CN202022728423.9U CN202022728423U CN213934178U CN 213934178 U CN213934178 U CN 213934178U CN 202022728423 U CN202022728423 U CN 202022728423U CN 213934178 U CN213934178 U CN 213934178U
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Abstract
The utility model relates to a full-automatic electric energy meter on-spot calibration equipment, including main control unit, power amplifier, check-up data processor, the electric quantity loss compensator that main control unit connects, check-up data processor is connected with the device of checking meter, and the device of checking meter and power amplifier are connected with the electric energy meter of being examined, and the device of checking meter gathers the electric energy meter data item, supplies check-up data processor to check up. The on-site working error calibration can be carried out on the electric energy meter, meanwhile, the data item of the electric energy meter is copied through the meter reading device, and the full-item automatic calibration is realized by calibrating items such as electric energy indicating value combination errors, clock indicating value errors, communication interface inspection, function inspection, character walking test and the like of the electric energy meter. The utility model discloses novel structure, design environmental protection, simple reliable, man-machine interface are friendly, can realize the full project automatic check-up of on-the-spot inspection, improve site work efficiency, reduce the site work operation risk.
Description
Technical Field
The utility model belongs to the technical field of the electrical measurement and specifically relates to a full-automatic electric energy meter on-spot calibration equipment is related to.
Background
In the field of electric energy metering, the accuracy of electric energy metering is ensured by carrying out on-site verification work on an electric energy metering device according to DL/T448-.
The electric energy meter mainly used at the present stage is an electronic book multifunctional electric energy meter, so that when the field calibration of the electric energy meter is carried out, all functional modules of the electric energy meter need to be calibrated, and the accuracy of the electric energy meter can be ensured. At present, the traditional electric energy meter on-site calibration instrument only calibrates the working error of the electric energy meter, and other functions of the electric energy meter need field personnel to manually read the data of the electric energy meter or realize the data through specific meter reading software of the electric energy meter, so that the field calibration instrument has great limitation to the field personnel and is also a place which can be easily ignored by the field personnel, and the validity of the field calibration is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a full-automatic electric energy meter field check device, the device can improve the accuracy and the suitability of electric energy meter field check, improves the electrified measurement accuracy of more well electric quantity loss compensation of electric energy meter, guarantees electric energy measurement's fair and just, can develop full project field test simultaneously, realizes the full automatization and differentiates, reduces field work personnel work load.
In order to realize the technical purpose, the technical scheme of the utility model is specifically as follows:
the utility model provides a full-automatic electric energy meter on-spot calibration equipment, includes main control unit, power amplifier, check-up data processor, the electric quantity loss compensator that main control unit connects, and check-up data processor is connected with the device of checking meter, and the device of checking meter and power amplifier are connected with the electric energy meter of being examined, and the device of checking meter gathers electric energy meter data item, supplies check-up data processor to check up.
Further, the meter reading device checks the function of the communication port of the electric energy meter through infrared communication or 485 communication.
Furthermore, the main controller is also connected with a current collecting device and a voltage collecting device, a voltage loop of the detected electric energy meter is connected in parallel with the voltage collecting device, a current loop of the detected electric energy meter is connected in series with the current collecting device, or the voltage loop of the detected electric energy meter is connected in parallel with the voltage collecting device, and a current loop of the detected electric energy meter is connected to the current loop through an external clamp-on ammeter.
Furthermore, the checking data processor is also connected with the communication interface and the pulse interface, and the pulse interface is connected with the electric energy meter to be checked.
Further, the verification data processor and the electric quantity loss compensator are connected with the display.
The utility model discloses can not only carry out the check-up of site work error to the electric energy meter, collect data through the device of checking meter simultaneously, realize copying electric energy meter data item, carry out the check-up to items such as electric energy indicating value composite error, clock indicating value error, communication interface inspection, functional check, the test of walking the word and realize full project automatic check-up.
The current and voltage acquisition is carried out through the current acquisition device and the voltage acquisition device, the electric quantity calculation is realized, and the electric quantity is sent to the verification data processing unit to carry out the verification of the character-moving test.
The electric quantity loss compensation processor can accurately calculate the loss electric energy when the electric energy meter is replaced.
The main controller controls stable current and voltage output, and electric energy meter calibration under the condition of no load is realized.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses can not only carry out the check-up of site work error to the electric energy meter, realize copying the electric energy meter data item through the device of checking meter simultaneously, carry out the check-up to items such as electric energy indicating value composite error, clock indicating value error, communication interface inspection, function inspection, the test of walking the word and realize full project automatic check-up.
2. The utility model discloses can realize that multi-functional electric energy meter data processing ability carries out the check-up, ensure accuracy, the fairness of electric energy meter measurement.
3. The utility model discloses novel structure, design environmental protection, simple reliable, man-machine interface are friendly, can realize the full project automatic check-up of on-the-spot inspection, improve site work efficiency, reduce the site work operation risk.
Drawings
Fig. 1 is a block diagram of the present invention.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments belong to the protection scope of the present invention.
Unless otherwise defined, technical or scientific terms used in the embodiments of the present application should have the ordinary meaning as understood by those having ordinary skill in the art. The use of "first," "second," and similar terms in the present embodiments does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "Upper," "lower," "left," "right," "lateral," "vertical," and the like are used solely in relation to the orientation of the components in the figures, and these directional terms are relative terms that are used for descriptive and clarity purposes and that can vary accordingly depending on the orientation in which the components in the figures are placed.
As shown in fig. 1, the full-automatic electric energy meter on-site calibration device of the embodiment includes a main controller, a power amplifier, a calibration data processor, and an electric quantity loss compensator, which are connected to the main controller, wherein the calibration data processor is connected to a meter reading device, the meter reading device and the power amplifier are connected to the electric energy meter to be tested, and the meter reading device collects data items of the electric energy meter for the calibration data processor to perform calibration. The meter reading device checks the function of the communication port of the electric energy meter through infrared communication or 485 communication.
The main controller is further connected with the current collecting device and the voltage collecting device, a voltage loop of the detected electric energy meter is connected in parallel with the voltage collecting device, a current loop of the detected electric energy meter is connected in series with the current collecting device, or the voltage loop of the detected electric energy meter is connected in parallel with the voltage collecting device, and the current loop of the detected electric energy meter is connected to the current loop through an external pincerlike ammeter.
The checking data processor is also connected with the communication interface and the pulse interface, and the pulse interface is connected with the electric energy meter to be checked. The checking data processor and the electric quantity loss compensator are connected with the display.
Each component of this embodiment is the product of buying in the market, and wherein, the device of checking meter is also the product of buying in the market, is the electric energy meter reading system based on PCB51 singlechip, including singlechip, LCD1602 liquid crystal, ADE7755, bluetooth, button and row of inserting.
The method and the device can not only check the field working errors of the electric energy meter, but also check the items such as the electric energy indicating value combination errors, the clock indicating value errors, the communication interface check, the function check and the like of the electric energy meter. The meter reading device realizes the reading of the data of the electric energy meter, and the read data is sent to the verification data processor to verify the items such as electric energy indicating value combination error, clock indicating value error, communication interface inspection, function inspection, word walking test and the like.
The verification data processor of the embodiment can not only carry out on-site verification on the electric energy meter, but also carry out compensation calculation on electric quantity loss in the replacement process of the electric energy meter. The electric energy meter calibration device comprises a current acquisition device, a voltage acquisition device, a communication interface, a calibration data processor and a compensation data processor, wherein the current acquisition device acquires current when the electric energy meter is calibrated and replaced, the voltage acquisition device acquires voltage signals when the voltage acquisition device performs calibration or electric quantity loss compensation, the communication interface is mainly used for being connected with flat electric energy, and the calibration data processor performs error calculation of electric energy meter field calibration and compensation calculation of electric quantity loss when the electric energy meter is replaced.
The utility model discloses a use specifically as follows:
1. when the electric energy meter is checked on site, a voltage loop of the electric energy meter to be checked is connected in parallel with the voltage acquisition unit, a current loop of the electric energy meter to be checked is connected in series with the current acquisition unit, the pulse interface is connected to the electric energy meter to be checked, 220AC normal commercial power is taken as a power supply, secondary voltage and current parameters are set on an operation interface, and the tablet personal computer is connected to the data communication interface, so that the on-site electric energy meter checking can be realized.
2. If the electric energy meter is electrically replaced on site, the voltage loop of the detected electric energy meter is connected in parallel to the voltage acquisition unit, the current loop of the detected electric energy meter is connected to the current loop through the external clamp-on ammeter, the calibration device can automatically record the compensation of the loss electric quantity, and finally the compensation is displayed on an interface.
3. In the check and acceptance before the electric energy metering device is put into operation, because no load exists, the power amplifier and the main controller output stable current and voltage under the control of the power amplifier and the main controller, meanwhile, the check data processor collects the stable current and voltage as standard electric energy parameters, then the current and voltage collecting device collects the current and voltage of the electric energy meter, and the calculation of the error of the electric energy meter is completed through the check data processor, so that the purposes of carrying out electric energy meter check and on-site operation check and acceptance on site off-line and carrying out reliable comprehensive test on a secondary circuit of the electric energy meter are achieved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a full-automatic electric energy meter field check device which characterized in that: the electric energy meter comprises a main controller, a power amplifier, a check data processor and an electric quantity loss compensator, wherein the power amplifier, the check data processor and the electric quantity loss compensator are connected with the main controller, the check data processor is connected with a meter reading device, the meter reading device and the power amplifier are connected with an electric energy meter to be checked, and the meter reading device collects data items of the electric energy meter and is used for the check data processor to check.
2. The fully automatic electricity meter field verification device according to claim 1, wherein: the meter reading device checks the function of the communication port of the electric energy meter through infrared communication or 485 communication.
3. The fully automatic electricity meter field verification device according to claim 1, wherein: the main controller is further connected with the current collecting device and the voltage collecting device, a voltage loop of the detected electric energy meter is connected in parallel with the voltage collecting device, a current loop of the detected electric energy meter is connected in series with the current collecting device, or the voltage loop of the detected electric energy meter is connected in parallel with the voltage collecting device, and the current loop of the detected electric energy meter is connected to the current loop through an external pincerlike ammeter.
4. The fully automatic electricity meter field verification device according to claim 1, wherein: the checking data processor is also connected with the communication interface and the pulse interface, and the pulse interface is connected with the electric energy meter to be checked.
5. The fully automatic electricity meter field verification device according to claim 1, wherein: the checking data processor and the electric quantity loss compensator are connected with the display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022728423.9U CN213934178U (en) | 2020-11-23 | 2020-11-23 | Full-automatic electric energy meter on-site calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022728423.9U CN213934178U (en) | 2020-11-23 | 2020-11-23 | Full-automatic electric energy meter on-site calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213934178U true CN213934178U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022728423.9U Active CN213934178U (en) | 2020-11-23 | 2020-11-23 | Full-automatic electric energy meter on-site calibration device |
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| CN (1) | CN213934178U (en) |
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- 2020-11-23 CN CN202022728423.9U patent/CN213934178U/en active Active
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