CN2812024Y - Remote automatic detection system for electric energy metering device - Google Patents
Remote automatic detection system for electric energy metering device Download PDFInfo
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- CN2812024Y CN2812024Y CN 200520030319 CN200520030319U CN2812024Y CN 2812024 Y CN2812024 Y CN 2812024Y CN 200520030319 CN200520030319 CN 200520030319 CN 200520030319 U CN200520030319 U CN 200520030319U CN 2812024 Y CN2812024 Y CN 2812024Y
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Abstract
The utility model discloses a remote automatic detection system for electric energy metering devices, which comprises a voltage converter, a current converter, a pulse converter, a standard electric energy meter, a substation industrial computer, a display and a remote communication apparatus, wherein the voltage converter, the current converter and the pulse converter are controlled by the substation industrial computer; signals which are collected by the voltage converter, the current converter and the pulse converter are input to the standard electric energy meter; after comprehensive treatment, various electrical parameters and errors of a checked electric energy meter are input to the substation industrial controller; the substation industrial computer reads various electrical parameters and errors of the checked electric energy meter which are calculated by the standard electric energy meter for storing and realizing remote communication by means of the remote communication apparatus. The signal collecting mode can clearly and accurately indicate working conditions of a system, be convenient for field operation, set the information of metering device, inquiry detecting records and inspect wire connecting circumstances of a checked electric energy meter at any time. The utility model achieves the real-time detection of a computer to the accuracy and the running state of a remote metering device, and has the advantage of stable and reliable performance.
Description
Technical field
The utility model belongs to a kind of remote power measurement detection system.
Background technology
At present the detection of the electric power meter of scene operation is finished by artificial execute-in-place fully.The instrument that is adopted only is one " electric energy meter on-site calibrator ", needs by manually respectively it being inserted each loop, tested electric energy meter place, and workload is very big, and less transformer station needed just can finish in one day, and bigger station then needs the time longer.Especially the big electric energy meter of some load variations if be in underrun or just do not move and can't satisfy online testing conditions when detecting, causes omission, has buried hidden danger.The accuracy class of present field erected electric energy meter improves constantly, and 0.5 grade precision is generally used, so " electric energy meter on-site calibrator " that requires manual detection to use according to national electric energy meter calibration rules should be not less than 0.1 grade.When electric current was directly imported, " electric energy meter on-site calibrator " its precision of 0.1 grade still can satisfy and detect to require.But will manually " open " secondary circuit of on-the-spot current transformer like this, if have carelessness that the secondary circuit of on-the-spot current transformer is opened circuit slightly in " electric energy meter on-site calibrator " quality existing problems or the personnel operation, cause major accident, jeopardize personal safety.Take place for fear of accident, existing adopt " split-core type meters " insert more, but because the decision of " split-core type meter " self character, the accuracy of whole " electric energy meter on-site calibrator " can only reach 0.2 grade, can not satisfy the detection requirement, and it is big to detect error.Because error situations such as wiring error, error in reading easily take place in manually-operated, directly influence the true and reliable property of measuring.
Therefore, artificial on-the-spot the detection is cycle detection, and sense cycle is long, can't detect operating electric power meter in real time.The problem that between cycle detection, occurs as: overproof, wiring error, fault such as burn out and can not in time find.
Current, many multifunctional electric energy meters have all been realized data acquisition and remote communicating function, but it can only provide the continuous data of electric energy meter operation and the status detection of portion of external operation, can't realize the comprehensive detection of its place secondary circuit, and because the restriction of the precision of electric energy meter own makes accuracy of measurement not high.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provide a kind of with the computer controlled core that is made as, telecommunication is that means are carried out remote electric power meter on-line automatic detection device, realization detects the various service datas of electric energy meter and secondary circuit automatically from the scene, transmit field data at a distance to main website by telecommunication device, by main website field data is carried out various processing and demonstration, thereby realize simply detecting efficiently the running status of field electric energy table and connected secondary circuit.
The utility model is achieved through the following technical solutions:
A kind of Watthour meter remote automatic checkout system, it includes the multichannel switch unit, standard electric energy meter, the substation industrial computer, display and telecommunication device, the multichannel switch unit includes electric pressure converter, current converter, pulse converter, electric pressure converter, current converter, the signal output part of pulse converter is connected with the respective input of standard electric energy meter, the signal output part of standard electric energy meter is connected with the corresponding signal input part of substation industrial computer, the shows signal output terminal of substation industrial computer is connected with display, the control signal output ends of substation industrial computer respectively with electric pressure converter, current converter, the corresponding signal controlling input end of pulse converter is connected, and the communication signal output terminal of substation industrial computer is connected with master station computer by telecommunication device.
Also include arc-suppression circuit in the electric pressure converter with the work of zero voltage switching mode.
The linearity that also includes current transformer in the current converter is tackled the compensating circuit that it compensates.
Because the utility model has adopted by substation industrial computer control electric pressure converter, current converter, pulse converter voltage, electric current and the pulse signal of multichannel electric energy meter has been chosen, send into standard electric energy meter and carry out various electrical quantitys and the error that the signal synthesis processing obtains tested electric energy meter, and then store, and realize telecommunication by telecommunication device by various electrical quantitys and error that the substation industrial computer reads the tested electric energy meter that standard electric energy meter calculates.It is clear, accurate that the acquisition mode of sort signal can be indicated working state of system, also is convenient to execute-in-place.And measuring apparatus information can be set, the inquiry detection record is checked tested connection box of electric energy meter situation at any time.Can by the status surveillance screen, check the vector relations figure between voltage, electric current, phase place, frequency, active power, reactive power and the electric current and voltage in each loop, tested electric energy meter place, realized that fully computing machine detects in real time to accuracy and the running status of long-distance metering device, stable and reliable for performance.Can alleviate on-the-spot calibration personnel's labour intensity greatly, having eliminated the people is the sum of errors accident that causes.And simple operation, measurement accuracy height, antijamming capability are strong, inquiry and statistics kind are abundant, can generate standard forms.
Description of drawings
Fig. 1 is a frame principle figure of the present utility model;
Embodiment
As shown in Figure 1, Watthour meter remote automatic checkout system of the present utility model includes the multichannel switch unit, standard electric energy meter, the substation industrial computer, display and telecommunication device, the multichannel switch unit includes electric pressure converter, current converter, pulse converter, electric pressure converter, current converter, the signal output part of pulse converter is connected with the respective input of standard electric energy meter, the signal output part of standard electric energy meter is connected with the corresponding signal input part of substation industrial computer, the shows signal output terminal of substation industrial computer is connected with display, the control signal output ends of substation industrial computer respectively with electric pressure converter, current converter, the corresponding signal controlling input end of pulse converter is connected, and the communication signal output terminal of substation industrial computer is connected with master station computer by telecommunication device.
From the voltage of on-the-spot input voltage converter is that multichannel exchanges 0V～100V, the 50Hz forceful electric power is pressed signal, owing to adopted the relay switching mode in the electric pressure converter, relay contact connects with interlock mode, under the decoded signal and chip selection signal control that the substation industrial computer sends, when any one or several actuating of relay, the capital directly is communicated with output terminal with a certain input end, so the output of electric pressure converter is in full accord with being attached thereto that logical road input voltage signal, any variation does not take place in voltage signal signal properties behind electric pressure converter.By obtaining the wherein voltage of a certain tested electric energy meter behind the electric pressure converter, be output as one the tunnel and exchange 0V～100V, the 50Hz forceful electric power is pressed signal, directly sends into standard electric energy meter through strong signal cable.
Voltage circuit is an industrial-frequency alternating current, so when voltage peak point switched, relay contact often had electric arc to produce, so system design with the arc-suppression circuit of zero voltage switching mode work.
From the electric current of on-the-spot input current converter is that multichannel exchanges 0A～5A, 50Hz heavy current signal, because the inner current transformer that adopts of current converter is sampled, the current transformer group is once held with the heavy current signal of input current converter and is connected, 0V～the 1V of secondary terminals output, 50Hz light current press signal to send into the multi-channel analog electronic switch.Under the decoded signal and chip selection signal control that the substation industrial computer sends, simulant electronic switch selects the light current of one tunnel input to press signal output at any time, is output as one the tunnel and exchanges 0V～1V, and 50Hz light current is pressed signal, directly sends into standard electric energy meter through the weak signal cable.
In order to eliminate the linearity error of current transformer in whole range ability, improve system accuracy, designed the compensating circuit of current transformer.
On-the-spot multifunction electric meter pulse is to isolate back output through photoelectricity, each electrical energy pulse may carry secretly the forward position shake and after along dither signal, must be with its filtering (employing debouncing circuit) otherwise can have a strong impact on measuring accuracy.And the pulse signal converter is made up of data selector, and behind the multiplex pulse signal input data selector, data selector sends decoded signal and chip selection signal according to the substation industrial computer, chooses wherein one the road and sends into standard electric energy meter from output terminal output.Behind the pulse signal passages through which vital energy circulates red switch parallel operation, any variation does not take place in signal.
Decoded signal and chip selection signal that above-mentioned three kinds of converters are sent by the substation industrial computer are controlled, and purpose is in order to keep three converting units can co-ordination, the standard electric energy meter of the signal of that table that system need be detected input simultaneously.By standard electric energy meter above-mentioned input signal is carried out signal synthesis again and handle various electrical quantitys and the error that obtains tested electric energy meter.Electric pressure converter, current converter, pulse converter are chosen voltage, electric current and the electric impulse signal of that electric energy meter of wanting detected and are sent into standard electric energy meter by the control of substation industrial computer.Standard electric energy meter is connected with the substation industrial computer by communication cable, read the various electrical quantitys and the error of the tested electric energy meter that standard electric energy meter calculates stores by the substation industrial computer, by showing that indicating member shows the various electric parameters and the historical data of the duty of current substation, tested electric energy meter, and be sent to master station computer by telecommunication device, carry out data analysis and printing.Operating personnel also can be provided with various parameters to master station computer simultaneously, to a plurality of substation centralized management, send the parameter that is provided with to the substation industrial computer by telecommunication device.
Claims (1)
1, a kind of Watthour meter remote automatic checkout system, it is characterized in that: it includes the multichannel switch unit, standard electric energy meter, the substation industrial computer, display and telecommunication device, the multichannel switch unit includes electric pressure converter, current converter, pulse converter, electric pressure converter, current converter, the signal output part of pulse converter is connected with the respective input of standard electric energy meter, the signal output part of standard electric energy meter is connected with the corresponding signal input part of substation industrial computer, the shows signal output terminal of substation industrial computer is connected with display, the control signal output ends of substation industrial computer respectively with electric pressure converter, current converter, the corresponding signal controlling input end of pulse converter is connected, and the communication signal output terminal of substation industrial computer is connected with master station computer by telecommunication device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030319 CN2812024Y (en) | 2005-03-29 | 2005-03-29 | Remote automatic detection system for electric energy metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030319 CN2812024Y (en) | 2005-03-29 | 2005-03-29 | Remote automatic detection system for electric energy metering device |
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| Publication Number | Publication Date |
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| CN2812024Y true CN2812024Y (en) | 2006-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200520030319 Expired - Fee Related CN2812024Y (en) | 2005-03-29 | 2005-03-29 | Remote automatic detection system for electric energy metering device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013157A (en) * | 2010-08-13 | 2011-04-13 | 深圳市科陆电子科技股份有限公司 | Device for displaying power data and information of energy meter |
| 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 |
| CN101782456B (en) * | 2009-01-19 | 2012-02-15 | 深圳市新超亮特种显示设备有限公司 | Method and system for remotely detecting working state of monitor |
| CN102809741A (en) * | 2012-08-14 | 2012-12-05 | 河南弘正电气科技有限公司 | Intelligent monitoring and managing information system for electric energy metering devices of substations |
| CN103197276A (en) * | 2013-03-28 | 2013-07-10 | 国家电网公司 | Reliability automatic detecting device of intelligent energy meter |
| CN103630868A (en) * | 2013-09-23 | 2014-03-12 | 中国电子科技集团公司第二十七研究所 | Remote substation electrical energy metering information detection system |
| CN105093165A (en) * | 2015-09-08 | 2015-11-25 | 国家电网公司 | Comprehensive test method of pulse signals of digitization electric energy meter |
| CN105425003A (en) * | 2015-11-16 | 2016-03-23 | 国网河南省电力公司平顶山供电公司 | Two-way information interaction method and two-way information interaction device for watt-hour meter boxes of residents |
| CN106569170A (en) * | 2016-11-09 | 2017-04-19 | 国网山东省电力公司临朐县供电公司 | Metering device secondary circuit detector and detection method thereof |
| CN109725277A (en) * | 2017-10-30 | 2019-05-07 | 河南赛贝电子科技有限公司 | A kind of long-range real-time check-up monitoring of energy meter distributed |
| CN111505563A (en) * | 2020-06-16 | 2020-08-07 | 国网江西省电力有限公司电力科学研究院 | Comprehensive error testing method for electric energy meter |
-
2005
- 2005-03-29 CN CN 200520030319 patent/CN2812024Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782456B (en) * | 2009-01-19 | 2012-02-15 | 深圳市新超亮特种显示设备有限公司 | Method and system for remotely detecting working state of monitor |
| 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 |
| CN102013157A (en) * | 2010-08-13 | 2011-04-13 | 深圳市科陆电子科技股份有限公司 | Device for displaying power data and information of energy meter |
| 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 |
| CN102809741A (en) * | 2012-08-14 | 2012-12-05 | 河南弘正电气科技有限公司 | Intelligent monitoring and managing information system for electric energy metering devices of substations |
| CN103197276A (en) * | 2013-03-28 | 2013-07-10 | 国家电网公司 | Reliability automatic detecting device of intelligent energy meter |
| CN103630868A (en) * | 2013-09-23 | 2014-03-12 | 中国电子科技集团公司第二十七研究所 | Remote substation electrical energy metering information detection system |
| CN105093165A (en) * | 2015-09-08 | 2015-11-25 | 国家电网公司 | Comprehensive test method of pulse signals of digitization electric energy meter |
| CN105093165B (en) * | 2015-09-08 | 2017-06-16 | 国家电网公司 | A kind of integrated test facility of digitalized electrical energy meter pulse signal |
| CN105425003A (en) * | 2015-11-16 | 2016-03-23 | 国网河南省电力公司平顶山供电公司 | Two-way information interaction method and two-way information interaction device for watt-hour meter boxes of residents |
| CN106569170A (en) * | 2016-11-09 | 2017-04-19 | 国网山东省电力公司临朐县供电公司 | Metering device secondary circuit detector and detection method thereof |
| CN106569170B (en) * | 2016-11-09 | 2019-07-19 | 国网山东省电力公司临朐县供电公司 | A kind of metering device secondary circuit detector and its detection method |
| CN109725277A (en) * | 2017-10-30 | 2019-05-07 | 河南赛贝电子科技有限公司 | A kind of long-range real-time check-up monitoring of energy meter distributed |
| CN111505563A (en) * | 2020-06-16 | 2020-08-07 | 国网江西省电力有限公司电力科学研究院 | Comprehensive error testing method for electric energy meter |
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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: INSITITUTE 27, CHINA ELECTRONICS TECHNOLOGY GROUP Free format text: FORMER OWNER: ZHENGZHOU WEST ELECTRONIC TECHNOLOGY CO., LTD. Effective date: 20110110 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 450005 NO. 71, HANGHAI MIDDLE ROAD, ZHENGZHOU CITY, HE NAN PROVINCE TO: 450047 NO. 1000, BOXUE ROAD, ZHENGDONG NEW DISTRICT, ZHENGZHOU CITY, HE NAN PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110110 Address after: 450047 1000 erudite Road, Zheng Dong New District, Henan, Zhengzhou Patentee after: No.27 Research Institute, China Electronics Technology Group Corporation Address before: 450005 No. 71, middle navigation road, Henan, Zhengzhou Patentee before: Zhengzhou West Electronic Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060830 Termination date: 20130329 |