CN201177662Y - Remote on-line detection system for electric energy metering error - Google Patents
Remote on-line detection system for electric energy metering error Download PDFInfo
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- CN201177662Y CN201177662Y CNU2008200320851U CN200820032085U CN201177662Y CN 201177662 Y CN201177662 Y CN 201177662Y CN U2008200320851 U CNU2008200320851 U CN U2008200320851U CN 200820032085 U CN200820032085 U CN 200820032085U CN 201177662 Y CN201177662 Y CN 201177662Y
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- 238000005516 engineering process Methods 0.000 description 3
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Abstract
A remote online electric energy metering error detection system is characterized in that a standard watt-hour meter is arranged in the field; electrical signals of each watt-hour meter to be monitored are respectively introduced to the standard watt-hour meter through the corresponding switch channel in a real-time manner; a field industrial computer controls a channel controller to switch a loop electrical signal of the channel, where the selected watt-hour meter is disposed, to a total channel and simultaneously stop other loop electrical signals pass through the total channel; the loop electrical signal of the selected channel measured by the standard watt-hour meter is transmitted to the field industrial computer; and a user unit information center master station receives the detection data collected and processed by the field industrial computer through a network and corresponds to the selected watt-hour meter to be detected through a remote industrial computer. The remote online electric energy metering error detection system can improve the efficiency in measuring the error of a metering device and achieve real-time error monitor of the metering device.
Description
Technical field
The utility model relates to the electric power meter error detecting system.The electric power meter error of more specifically saying so remote online detection system.
Background technology
China's electric power system all is to adopt artificial mode for the field-checking of electrical network electric power meter in most cases at present.This mode especially when verification is in the measuring apparatus of outlying mountain area, job costs height, big, the inefficiency of workload.
At present, the set of equipments that is used for electric energy meter field error test both at home and abroad seldom and comparatively simple, majority all is to connect on-site calibrator at the scene, the manual observation instrument obtains detecting data, this form not only work efficiency is low, and measuring apparatus can't be carried out comprehensive on-line testing and fault judgement in operational process.
Current, the justice of electric energy metrical, just attention and the concern that more and more is subjected to governments at all levels, quality supervision department and vast power customer are guaranteed electrical network electric energy metrical accuracy, improve measuring apparatus error measure work efficiency, are guaranteed that the measuring apparatus error is monitored in real time, the trade settlement electric energy meter all is accurately to be prerequisite in real time with the electric power meter error-detecting accurately and reliably.But, also do not have to satisfy the electric power meter error remote online detection system of related request so far.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of electric energy metering error remote online detection system is provided, with guarantee electrical network electric energy metrical accuracy, improve measuring apparatus error measure work efficiency, guarantee that the measuring apparatus error is monitored in real time, the trade settlement electric energy meter accurately and reliably.
The utility model is dealt with problems and is adopted following technical scheme:
The characteristics of the utility model electric energy metering error remote online detection system are that described system comprises:
Signal deteching circuit: the scene electric energy meter that sets up standard, the electric signal of each monitored electric energy meter comprise that current signal, voltage signal, pulse signal and communication signal introduce standard electric energy meter by corresponding switching channel respectively in real time;
On-the-spot industrial computer: the command information that the receiving remote customer side sends by network about selected electric energy meter, or the acceptance scene is controlled, the control channel controller switches to the loop electric signal of selected electric energy meter place passage on the overall channel, stops other loop electric signal by described overall channel simultaneously; The loop electric signal of the selected passage that is recorded by standard electric energy meter uploads to described on-the-spot industrial computer;
Main website of Subscriber Unit information center: by the detection data of network reception by on-the-spot industrial computer collection and processing; By the corresponding selected tested electric energy meter of long-range industrial computer.
Design feature of the present utility model also is:
Described signal deteching circuit is set to, and tested electric energy meter three-phase current obtains the three-phase induction electric current through current transformer CT mutual inductance, and is connected in series with standard electric energy meter by switch JK1-JK6 in the switching channel; A phase voltage U
A, B phase voltage U
B, C phase voltage U
C, zero line U
NRespectively by insurance F1, F2, F3 and F4, and in switching channel switch JK7-JK10 and standard electric energy meter and connect, meritorious pulse GD1+, GD1-are connected with standard electric energy meter pulse mouth with JK16 by switch JK14, JK15 in the switching channel respectively with idle pulse GD2+, GD2-; Switch JK11, JK12 in the switching channel, JK13 respectively at A mutually, B mutually and the loop parallel connection of C phase current.
Each switch JK1-JK16 in the described switching channel is by setting the sequential break-make.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the utility model can be realized remote online verification electric energy meter error in dipping, detects electric current and voltage parameter, and it is scarce to accomplish that real-time detection in time disappears, and with its work that substitutes artificial field-checking electric energy meter, can improve gage work efficient greatly.
2, the switching channel technology of the utility model employing can guarantee metering secondary is pursued measurement mutually, guarantees measuring accuracy simultaneously.
3, the switch that adopts of the utility model is by mutually closed principle of work, when having guaranteed to measure certain phase current loop, and other phase current loops phenomenon of can not opening a way, assurance equipment and personal safety.
Description of drawings
Fig. 1 is the utility model testing circuit schematic diagram.
Fig. 2 is the utility model situ part structured flowchart.
Fig. 3 is the utility model remote service end structure block diagram.
Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings:
Embodiment
Referring to Fig. 1, the electric energy meter that sets up standard at the detection scene, tested electric energy meter three-phase current obtains the three-phase induction electric current through current transformer CT mutual inductance, and is connected in series with standard electric energy meter by switch JK1-JK6 in the switching channel; A phase voltage U
A, B phase voltage U
B, C phase voltage U
C, zero line U
NRespectively by insurance F1, F2, F3 and F4, and in switching channel switch JK7-JK10 and standard electric energy meter and connect, meritorious pulse GD1+, GD1-are connected with standard electric energy meter pulse mouth with JK16 by switch JK14, JK15 in the switching channel respectively with idle pulse GD2+, GD2-; Switch JK11, JK12 in the switching channel, JK13 respectively at A mutually, B mutually and the loop parallel connection of C phase current.Switching channel is as former, and wherein each switch JK1-JK16 is by setting the sequential break-make.Such as: when tested electric energy meter A phase current was measured, switch JK1, JK2 closure, switch JK11 disconnected; B phase and C switch JK3, JK4 disconnection mutually, switch JK12 closure; Voltage and pulse are in like manner worked, and measure with standard electric energy meter.
As electric power meter error remote online detection system, corresponding setting has two parts, i.e. situ part and remote portion, and monitoring range comprises electric energy meter, current transformer, voltage transformer (VT) and whole metering secondary.
Shown in Figure 2, at the scene in the part, the electric signal of each monitored electric energy meter comprises that voltage, electric current, pulse signal and communication signal etc. are incorporated into respectively in each respective channel commutation circuit, chosen electric energy meter is sent on the on-the-spot industrial computer by network by long-range customer side, or come the control channel controller by the on-the-spot industrial computer of on-the-spot direct control, channel controller switches to this road electric signal on the overall channel automatically according to the instruction that on-the-spot industrial computer transmits, and other then can not pass through the overall channel circuit.Chosen passage electric signal is linked into standard scale and measures.Communication function by standard scale is required electric parameter, comprises that voltage, electric current, phase place, frequency, meritorious, reactive power and error etc. upload to on-the-spot industrial computer.The data of on-the-spot industrial computer collection are transferred to the main website of Subscriber Unit information center of remote service end after treatment by network LAN, PSTN, RS485/RS232, GPRS etc.
Shown in Figure 3, system detects automatically in remote portion, and further realizes that by network electric energy error detects the transmission of data.Main website of Subscriber Unit information center is a Subscriber Unit information center.
The utility model is that brand-new mode of operation has been created in the error-detecting of electric power meter, made things convenient for the scene of unmanned electric substation, gate energy meter to detect, the difficult problems such as field-checking cost height of outlying mountain area's measuring apparatus have been solved, greatly improved work efficiency, alleviated labour intensity, made the electric energy metrical field-checking realize robotization.Simultaneously, system guarantees can the surveying in real time of electric power metering device, controlled in real time, detect data by network with data transmission to main website, for relevant departments' reference, improved work efficiency, guarantee the open, just, fair of trade.
Claims (3)
1, electric energy metering error remote online detection system is characterized in that described system comprises:
Signal deteching circuit: the scene electric energy meter that sets up standard, the electric signal of each monitored electric energy meter comprise that current signal, voltage signal, pulse signal and communication signal introduce standard electric energy meter by corresponding switching channel respectively in real time;
On-the-spot industrial computer: the command information that the receiving remote customer side sends by network about selected electric energy meter, or the acceptance scene is controlled, the control channel controller switches to the loop electric signal of selected electric energy meter place passage on the overall channel, stops other loop electric signal by described overall channel simultaneously; The loop electric signal of the selected passage that is recorded by standard electric energy meter uploads to described on-the-spot industrial computer;
Main website of Subscriber Unit information center: by the detection data of network reception by on-the-spot industrial computer collection and processing; By the corresponding selected tested electric energy meter of long-range industrial computer.
2, electric energy metering error remote online detection system according to claim 1, it is characterized in that described signal deteching circuit is set to, tested electric energy meter three-phase current obtains the three-phase induction electric current through current transformer CT mutual inductance, and is connected in series with standard electric energy meter by switch JK1-JK6 in the switching channel; A phase voltage U
A, B phase voltage U
B, C phase voltage U
C, zero line U
NRespectively by insurance F1, F2, F3 and F4, and in switching channel switch JK7-JK10 and standard electric energy meter and connect, meritorious pulse GD1+, GD1-are connected with standard electric energy meter pulse mouth with JK16 by switch JK14, JK15 in the switching channel respectively with idle pulse GD2+, GD2-; Switch JK11, JK12 in the switching channel, JK13 respectively at A mutually, B mutually and the loop parallel connection of C phase current.
3, electric energy metering error remote online detection system according to claim 2 is characterized in that each switch JK1-JK16 in the described switching channel is by setting the sequential break-make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200320851U CN201177662Y (en) | 2008-03-14 | 2008-03-14 | Remote on-line detection system for electric energy metering error |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200320851U CN201177662Y (en) | 2008-03-14 | 2008-03-14 | Remote on-line detection system for electric energy metering error |
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| Publication Number | Publication Date |
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| CN201177662Y true CN201177662Y (en) | 2009-01-07 |
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| CNU2008200320851U Expired - Fee Related CN201177662Y (en) | 2008-03-14 | 2008-03-14 | Remote on-line detection system for electric energy metering error |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782779A (en) * | 2010-03-30 | 2010-07-21 | 浙江中控自动化仪表有限公司 | Debugging method of monitoring system |
| CN102053237A (en) * | 2009-10-31 | 2011-05-11 | 郑州三足科技发展有限公司 | Remote on-line detection system of electric energy metering device |
| CN102135608A (en) * | 2011-01-29 | 2011-07-27 | 四川电力科学研究院 | Electric energy metering and monitoring system of intelligent gateway |
| CN102175899A (en) * | 2011-01-07 | 2011-09-07 | 中国空间技术研究院 | Automatic test safety control method of satellite interface |
| CN104597426A (en) * | 2014-12-17 | 2015-05-06 | 浙江涵普电力科技有限公司 | Remote online monitoring method of energy measurement device |
| CN105425198A (en) * | 2015-11-16 | 2016-03-23 | 国网河南省电力公司平顶山供电公司 | Watt-hour meter metering abnormality in-situ automatic diagnosis and treatment device |
| CN105467353A (en) * | 2015-11-16 | 2016-04-06 | 国网河南省电力公司平顶山供电公司 | Watt-hour meter metering abnormality in-situ automatic diagnosis and treatment device based on current comparison |
| CN107037390A (en) * | 2017-02-10 | 2017-08-11 | 国网浙江台州市黄岩区供电公司 | Impact load is to electric energy metering error remote monitoring of customer end |
| CN107589391A (en) * | 2017-07-27 | 2018-01-16 | 武汉尤瑞卡节能科技有限公司 | A kind of methods, devices and systems for detecting electric power meter global error |
| CN115774233A (en) * | 2023-02-13 | 2023-03-10 | 武汉华瑞智能电气技术有限公司 | Method and device for judging metering performance of station-end electric energy metering device on line |
| CN117269879A (en) * | 2023-09-28 | 2023-12-22 | 江苏森维电子有限公司 | Method for eliminating accumulated errors of intelligent ammeter |
-
2008
- 2008-03-14 CN CNU2008200320851U patent/CN201177662Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053237A (en) * | 2009-10-31 | 2011-05-11 | 郑州三足科技发展有限公司 | Remote on-line detection system of electric energy metering device |
| CN101782779A (en) * | 2010-03-30 | 2010-07-21 | 浙江中控自动化仪表有限公司 | Debugging method of monitoring system |
| CN102175899A (en) * | 2011-01-07 | 2011-09-07 | 中国空间技术研究院 | Automatic test safety control method of satellite interface |
| CN102175899B (en) * | 2011-01-07 | 2013-06-19 | 中国空间技术研究院 | Automatic test safety control method of satellite interface |
| CN102135608A (en) * | 2011-01-29 | 2011-07-27 | 四川电力科学研究院 | Electric energy metering and monitoring system of intelligent gateway |
| CN104597426A (en) * | 2014-12-17 | 2015-05-06 | 浙江涵普电力科技有限公司 | Remote online monitoring method of energy measurement device |
| CN105425198A (en) * | 2015-11-16 | 2016-03-23 | 国网河南省电力公司平顶山供电公司 | Watt-hour meter metering abnormality in-situ automatic diagnosis and treatment device |
| CN105467353A (en) * | 2015-11-16 | 2016-04-06 | 国网河南省电力公司平顶山供电公司 | Watt-hour meter metering abnormality in-situ automatic diagnosis and treatment device based on current comparison |
| CN107037390A (en) * | 2017-02-10 | 2017-08-11 | 国网浙江台州市黄岩区供电公司 | Impact load is to electric energy metering error remote monitoring of customer end |
| CN107589391A (en) * | 2017-07-27 | 2018-01-16 | 武汉尤瑞卡节能科技有限公司 | A kind of methods, devices and systems for detecting electric power meter global error |
| CN115774233A (en) * | 2023-02-13 | 2023-03-10 | 武汉华瑞智能电气技术有限公司 | Method and device for judging metering performance of station-end electric energy metering device on line |
| CN117269879A (en) * | 2023-09-28 | 2023-12-22 | 江苏森维电子有限公司 | Method for eliminating accumulated errors of intelligent ammeter |
| CN117269879B (en) * | 2023-09-28 | 2024-03-29 | 江苏森维电子有限公司 | Method for eliminating accumulated errors of intelligent ammeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130116 Address after: 237006 Anhui Province, Lu'an City People's Road Patentee after: Anhui Electric Power Co.,Ltd. Liuan Power Supply Co., Ltd. Patentee after: State Grid Corporation of China Address before: 237006 Anhui Province, Lu'an City People's Road No. 71 Patentee before: Anhui Electric Power Co.,Ltd. Liuan Power Supply Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20170314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |