CN204009057U - A kind of multiuser electric energy meter verifying attachment - Google Patents
A kind of multiuser electric energy meter verifying attachment Download PDFInfo
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- CN204009057U CN204009057U CN201420481736.0U CN201420481736U CN204009057U CN 204009057 U CN204009057 U CN 204009057U CN 201420481736 U CN201420481736 U CN 201420481736U CN 204009057 U CN204009057 U CN 204009057U
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Abstract
The utility model is applicable to a kind of technical field of verifying attachment of electric energy meter, a kind of multiuser electric energy meter verifying attachment is disclosed, comprise multiuser electric energy meter and Error processing system, multiuser electric energy meter output electrical energy impulse signals is to Error processing system, error signal after treatment is reached computing machine by Error processing system, the adjustment signal after calculating is fed back to multiuser electric energy meter by computing machine, comprises calibration equipment, and described standard scale outputting standard pulse signal is to Error processing system.A kind of multiuser electric energy meter verifying attachment that the utility model provides, rational in infrastructure, adopt voltage power amplifier to combine with stepup transformer, make the digital signal of computing machine transmission be converted to electric signal, reduce loss of signal, simultaneous computer directly switches and is connected with current channel, makes the different electric currents of multiuser electric energy meter be able to verification one by one under controlled condition, greatly improve the verification efficiency of calibration equipment, thereby improved combination property and the market competitiveness of calibrator for watt-hour meter.
Description
[technical field]
The utility model relates to a kind of verifying attachment of electric energy meter, particularly a kind of multiuser electric energy meter verifying attachment.
[background technology]
In large-scale production system, various electric energy meters, before networking, need to carry out verification to its electric energy metering error, and the electric energy meter that electric energy error is qualified just allows to network and uses.And, multiuser electric energy meter is the new technology electric energy meter that multiple electronic electric energy meters are combined, just can carry out unified metering and management to all users' in Huo Yidong building, a unit power consumption with an electric energy meter, multiuser electric energy meter has changed the situation of the corresponding electric energy meter in a family in the past, not only save cost, also more for the unified management of power department provides great convenience.
But the verification of the multiuser electric energy meter that used is in the market all on common electric energy meter checking device, by manual change wiring, hand-operated lifting voltage, electric current, manual switchover pulse realizes.Therefore whole verification efficiency is very low, has restricted especially to heavens the production efficiency of larger manufacturer.Therefore be, still the blank in calibrator for watt-hour meter field for the calibration equipment of multiuser electric energy meter.
[utility model content]
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of multiuser electric energy meter verifying attachment is provided, and it is intended to solve electric energy meter checking device verification inefficiency in prior art, cannot meets the technical matters of the verification needs of multiuser electric energy meter.
For achieving the above object, the utility model proposes a kind of multiuser electric energy meter calibration equipment, comprise multiuser electric energy meter and Error processing system, described multiuser electric energy meter output electrical energy impulse signals is to Error processing system, error signal after treatment is reached computing machine by described Error processing system, the adjustment signal after calculating is fed back to multiuser electric energy meter by described computing machine, also comprises calibration equipment and standard scale, and described standard scale outputting standard pulse signal is to Error processing system;
Described calibration equipment comprises the derived digital signal of difference output voltage signal and current signal, accept the voltage power amplifier of voltage signal, accept the current amplification machine of current signal, the stepup transformer being connected with the output terminal of voltage power amplifier, the current lifting device being connected with the output terminal of current amplification machine, the voltage range being connected with the output terminal of stepup transformer switches, the current channel switching device shifter that the current range being connected with the output terminal of current lifting device switches and is connected with the output terminal of standard scale, described voltage range switching and standard scale and multiuser electric energy meter all keep electrical connection, the output terminal of described current channel switching device shifter is connected with multiuser electric energy meter, described computing machine switches and keeps communication connection with derived digital signal and current channel respectively.
As preferably, also comprise standard time clock, described standard time clock transmission standard clock pulse signal is to Error processing system.
As preferably, described multiuser electric energy meter also output clock pulse signal to Error processing system.
As preferably, described derived digital signal is put the control signal of accepting computing machine, described current range switches the user's electric current that receives multiplex electric energy meter, described current range switches output current and outputs signal to standard scale, normalized current is fed back to current channel switching device shifter by described standard scale, and described current channel switching device shifter high-ranking officers galvanoscope transfers to multiuser electric energy meter.
As preferably, described multiuser electric energy meter transfers to voltage range by user's voltage simultaneously and switches and standard scale, and described standard scale is fed back to voltage range by normal voltage and switches, and described voltage range switch key calibration voltage transfers to multiuser electric energy meter.
As preferably, described computing machine is connected with multiuser electric energy meter, current range switching device shifter and Error processing system by RS485 communication, and described computing machine is communicated by letter and is connected with derived digital signal by RS232.
The beneficial effects of the utility model: compared with prior art, a kind of multiuser electric energy meter calibration equipment that the utility model provides, rational in infrastructure, adopt voltage power amplifier to combine with stepup transformer, make the digital signal of computing machine transmission be converted to electric signal, reduce loss of signal, simultaneous computer directly switches and is connected with current channel, make the different electric currents of multiuser electric energy meter be able to verification one by one under controlled condition, greatly improve the verification efficiency of calibration equipment, thereby improved combination property and the market competitiveness of calibrator for watt-hour meter.
Feature of the present utility model and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[brief description of the drawings]
Fig. 1 is the syndeton schematic diagram of the utility model embodiment.
[embodiment]
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below by accompanying drawing and embodiment, the utility model is further elaborated.But should be appreciated that, specific embodiment described herein only, in order to explain the utility model, is not limited to scope of the present utility model.In addition, in the following description, omitted the description to known features and technology, to avoid unnecessarily obscuring concept of the present utility model.
Consult Fig. 1, the utility model embodiment provides a kind of multiuser electric energy meter calibration equipment, comprise multiuser electric energy meter and Error processing system, multiuser electric energy meter output electrical energy impulse signals 1 is to Error processing system, error signal 2 after treatment is reached computing machine by Error processing system, the adjustment signal 3 after calculating is fed back to multiuser electric energy meter by computing machine, also comprises calibration equipment and standard scale, and standard scale outputting standard pulse signal 4 is to Error processing system.Calibration equipment, in order to by further the adjustment signal of computing machine 3 refinement, makes it corresponding with each user in multiuser electric energy meter, multiuser electric energy meter is tested the in the situation that of the continuous electric current of same load thereby realize.
Particularly, calibration equipment comprises the derived digital signal of difference output voltage signal 5 and current signal 6, accept the voltage power amplifier of voltage signal 5, accept the current amplification machine of current signal 6, the stepup transformer being connected with the output terminal of voltage power amplifier, the current lifting device being connected with the output terminal of current amplification machine, the voltage range being connected with the output terminal of stepup transformer switches, the current channel switching device shifter that the current range being connected with the output terminal of current lifting device switches and is connected with the output terminal of standard scale, voltage range switching and standard scale and multiuser electric energy meter all keep electrical connection, the output terminal of current channel switching device shifter is connected with multiuser electric energy meter, computing machine switches and keeps communication connection with derived digital signal and current channel respectively.
In embodiment of the present utility model, the control signal of computing machine 9 is split as voltage signal 5 and current signal 6 by derived digital signal, and voltage signal 5 is switched to voltage range from voltage power amplifier, stepup transformer, current signal 6 switches to current range from current amplification, current lifting device, the two is transmission simultaneously, and this two transmission lines is one-way transmission.
Further, also comprise standard time clock, standard time clock transmission standard clock pulse signal 8 is to Error processing system, multiuser electric energy meter also output clock pulse signal 8 to Error processing system, make multiuser electric energy meter can in the process of verification, keep supplying with user's electric current uninterrupted, make Error processing system to carry out verification to multiuser electric energy meter in real time simultaneously, reduced the time delay of checking procedure.
Particularly, derived digital signal is put the control signal 9 of accepting computing machine, current range switches the user's electric current 11 that receives multiplex electric energy meter, current range switches output current output signal 12 to standard scale, normalized current 13 is fed back to current channel switching device shifter by standard scale, and current channel switching device shifter high-ranking officers galvanoscope 14 transfers to multiuser electric energy meter.
Further, multiuser electric energy meter transfers to voltage range by user's voltage 15 simultaneously and switches and standard scale, and standard scale is fed back to voltage range by normal voltage 16 and switches, and voltage range switch key calibration voltage 17 transfers to multiuser electric energy meter.
In embodiment of the present utility model, multi-user is switched unidirectional connection with current range, and user's electric current 11 can only switch from multiuser electric energy meter to current range.On the contrary, multiuser electric energy meter, voltage range switch the two-way connection that is connected between standard scale, this makes user's voltage 15 can directly transfer to standard scale, carries out transfer as user's electric current 11, thereby improved the checkability of calibration equipment and do not need to switch at current range.
Wherein, computing machine is connected with multiuser electric energy meter, current range switching device shifter and Error processing system by RS485 communication, and computing machine is communicated by letter and is connected with derived digital signal by RS232.Different due to the transport property of RS485 in two kinds of communication modes and RS232 and communication characteristic, therefore computing machine is more simple with communicating by letter of derived digital signal, and both distances are also relatively near; And communicating by letter between computing machine and Error processing system, current channel switching device shifter and multiuser electric energy meter is just comparatively complicated, the distance between them also can be farther, even can further expand by Internet of Things mode their communication distance.Signal that this kind of structure also makes computing machine send is well arranged, the division of labor is clear and definite, has further improved the verification efficiency of calibration equipment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace or improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a multiuser electric energy meter verifying attachment, comprise multiuser electric energy meter and Error processing system, described multiuser electric energy meter output electrical energy impulse signals (1) is to Error processing system, error signal after treatment (2) is reached computing machine by described Error processing system, the adjustment signal (3) after calculating is fed back to multiuser electric energy meter by described computing machine, it is characterized in that: also comprise calibration equipment and standard scale, described standard scale outputting standard pulse signal (4) is to Error processing system;
Described calibration equipment comprises the derived digital signal of difference output voltage signal (5) and current signal (6), accept the voltage power amplifier of voltage signal (5), accept the current amplification machine of current signal (6), the stepup transformer being connected with the output terminal of voltage power amplifier, the current lifting device being connected with the output terminal of current amplification machine, the voltage range being connected with the output terminal of stepup transformer switches, the current channel switching device shifter that the current range being connected with the output terminal of current lifting device switches and is connected with the output terminal of standard scale, described voltage range switching and standard scale and multiuser electric energy meter all keep electrical connection, the output terminal of described current channel switching device shifter is connected with multiuser electric energy meter, described computing machine switches and keeps communication connection with derived digital signal and current channel respectively.
2. a kind of multiuser electric energy meter verifying attachment as claimed in claim 1, is characterized in that: also comprise standard time clock, described standard time clock transmission standard clock pulse signal (7) is to Error processing system.
3. a kind of multiuser electric energy meter verifying attachment as claimed in claim 2, is characterized in that: described multiuser electric energy meter also output clock pulse signal (8) to Error processing system.
4. a kind of multiuser electric energy meter verifying attachment as claimed any one in claims 1 to 3, it is characterized in that: described derived digital signal is put the control signal (9) of accepting computing machine, described current range switches the user's electric current (11) that receives multiplex electric energy meter, described current range switches output current output signal (12) to standard scale, normalized current (13) is fed back to current channel switching device shifter by described standard scale, and described current channel switching device shifter high-ranking officers galvanoscopes (14) transfer to multiuser electric energy meter.
5. a kind of multiuser electric energy meter verifying attachment as claimed in claim 4, it is characterized in that: described multiuser electric energy meter transfers to voltage range by user's voltage (15) simultaneously and switches and standard scale, described standard scale is fed back to voltage range by normal voltage (16) and switches, and described voltage range switch key calibration voltage (17) transfers to multiuser electric energy meter.
6. a kind of multiuser electric energy meter verifying attachment as claimed any one in claims 1 to 3, it is characterized in that: described computing machine is connected with multiuser electric energy meter, current range switching device shifter and Error processing system by RS485 communication, and described computing machine is communicated by letter and is connected with derived digital signal by RS232.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481736.0U CN204009057U (en) | 2014-08-25 | 2014-08-25 | A kind of multiuser electric energy meter verifying attachment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481736.0U CN204009057U (en) | 2014-08-25 | 2014-08-25 | A kind of multiuser electric energy meter verifying attachment |
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| Publication Number | Publication Date |
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| CN204009057U true CN204009057U (en) | 2014-12-10 |
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| CN201420481736.0U Expired - Fee Related CN204009057U (en) | 2014-08-25 | 2014-08-25 | A kind of multiuser electric energy meter verifying attachment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537790A (en) * | 2020-05-11 | 2020-08-14 | 重庆跃腾电器有限公司 | Multi-user electric energy meter with pulse inspection interface |
| CN114152805A (en) * | 2020-09-08 | 2022-03-08 | 武汉国测数据技术有限公司 | Electric energy meter structure for checking error at home of user and error checking method |
-
2014
- 2014-08-25 CN CN201420481736.0U patent/CN204009057U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537790A (en) * | 2020-05-11 | 2020-08-14 | 重庆跃腾电器有限公司 | Multi-user electric energy meter with pulse inspection interface |
| CN114152805A (en) * | 2020-09-08 | 2022-03-08 | 武汉国测数据技术有限公司 | Electric energy meter structure for checking error at home of user and error checking method |
| CN114152805B (en) * | 2020-09-08 | 2024-04-26 | 武汉国测数据技术有限公司 | Electric energy meter structure for checking errors by users at home and error checking method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20190825 |
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| CF01 | Termination of patent right due to non-payment of annual fee |