CN203849399U - Single-phase carrier wave intelligent electric energy meter mis-power failure fault analyzer - Google Patents
Single-phase carrier wave intelligent electric energy meter mis-power failure fault analyzer Download PDFInfo
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- CN203849399U CN203849399U CN201420191940.9U CN201420191940U CN203849399U CN 203849399 U CN203849399 U CN 203849399U CN 201420191940 U CN201420191940 U CN 201420191940U CN 203849399 U CN203849399 U CN 203849399U
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- 238000004458 analytical method Methods 0.000 claims description 15
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- 238000004891 communication Methods 0.000 description 7
- 230000007812 deficiency Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
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Abstract
The utility model discloses a single-phase carrier wave intelligent electric energy meter mis-power failure fault analyzer based on DSP; the analyzer mainly comprises a three-phase standard source, a reading controller, a relay, a control unit, conditioning circuits, and a load box; the three-phase standard source is respectively connected with the reading controller and a primary winding of a tested ammeter transformer; the control unit formed by the DSP and an AD is connected with two conditioning circuits; two input ports of one conditioning circuit are connected in parallel with a secondary winding of the tested ammeter transformer; two input ports of the other conditioning circuit are connected in parallel with an output end of a tested ammeter rectifier bridge; the load box is connected with the output end of the tested ammeter rectifier bridge through a contactor KM1 and a contactor KM2. The DSP is used to analyze and process collected voltage values of each part in the tested ammeter so as to accurately determine a specific reason causing the mis-power failure fault, thereby timely completing checking of the single-phase carrier wave intelligent electric energy meter mis-power failure fault.
Description
technical field
The utility model relates to a kind of single-phase carrier intelligent electric energy meter mistake power down fail analysis device, belongs to Electric Energy Metering Technology field.
background technology
Along with the intelligent development of electrical network, for realizing full collection, all standing and the control in full of power consumer power information, power line carrier communication has become a kind of usual way that completes concentrator and electric energy meter communication, and the single-phase intelligent ammeter with carrier communication function is also widely used in intelligent grid.
For ensureing the accurate-metering of electric energy, the standard Q/GDW1364-2013 of Guo Wang incorporated business " single-phase intelligent electric energy meter technical manual " requires: single-phase intelligent electric energy meter is counted from assay approval day, at least can move 10 years.The permission failure rate that intelligent electric energy meter is annual has also been made to respective specified.Frequently there is mistake power down fault in a large amount of single-phase carrier intelligent electric energy meters that on-the-spot discovery is arranged on part platform district, failure rate does not meet the requirement of Guo Wang incorporated business standard.
The power down of single-phase carrier intelligent electric meter judges that sampled voltage is taken at the DC voltage place of electric energy meter supply carrier module, transformer damages, carrier module power consumption is excessive or electric energy meter load capacity deficiency all can cause this place's voltage to be pulled low to below power down threshold values, causes the mistake power down fault of ammeter.
Also there is no at present the device that carries out fault analysis for the mistake power down of carrier intelligent ammeter specially.
summary of the invention
The purpose of this utility model is to have overcome the deficiencies in the prior art, and a kind of single-phase carrier intelligent electric energy meter mistake power down fail analysis device is provided, and for detection of the concrete reason of analyzing single-phase carrier electric energy meter mistake power down fault, is convenient to mistake power down malfunction elimination.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of single-phase carrier intelligent electric energy meter mistake of the utility model power down fail analysis device mainly by three-phase standard source, copy control device, relay, control module, modulate circuit, load box and form.Three-phase standard source connects respectively a winding copying control device and tested ammeter transformer; The control module being made up of with AD DSP is connected two road modulate circuits: two input ports of a road modulate circuit are parallel-connected in the Secondary Winding of tested ammeter transformer; Two input ports of another road modulate circuit are connected in the output terminal of tested ammeter rectifier bridge in parallel; Load box is connected the output terminal of tested ammeter rectifier bridge with KM2 by contactor KM1.
Three-phase standard source provides working power for copying control device, and applies alternating voltage to the secondary side winding of transformer in tested table.
Copy control device and carry out carrier communication according to parameter and the tested ammeter set, thereby complete the collection to related data in ammeter.
GIOP pin outputs level signals control in the DSP of control module core three pairs of contactors wherein, for showing three kinds of different fault types.A pair of contactor KM1 and KM2 are for the controlling resistance case output terminal that accesses rectifier bridge in tested table whether in parallel in addition.
Control module is mainly made up of DSP and AD module.The TMSF2812 chip that DSP adopts, carries out AD conversion by the each interchange collecting, DC voltage value by AD modular converter, and DSP carries out Treatment Analysis by the data after conversion again, realizes fault analysis and judgement.The magnitude of voltage allowing due to AD conversion module input end is less, therefore can realize the adjustment to input voltage by modulate circuit, and then be met the input voltage of requirement.DSP to Data Management Analysis after, by controlling the achieve a butt joint control of the closed and off state of tentaculum of GPIO pin output low and high level.
Load box is that (precision is 96 Ω by several resistances
5%) pure resistive resistance composition, for detection of the load capacity of electric energy meter.
Compared with prior art, the beneficial effects of the utility model are: utilize DSP to realize the mistake power down fault analysis of single-phase carrier intelligent electric energy meter, can accurate analysis cause three kinds of concrete reasons of such fault, transformer damage, ammeter load capacity deficiency and communication module dynamic power consumption excessive.
brief description of the drawings
Fig. 1 is the structural representation of a kind of single-phase carrier intelligent electric energy meter mistake of the utility model power down fail analysis device.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Shown in Fig. 1, being the structural representation of a kind of single-phase carrier intelligent electric energy meter mistake of the utility model power down fail analysis device, is the structure division of tested ammeter shown in dotted line is interior, and dotted line is depicted as the body construction of device outward.
Three-phase standard source provides single-phase carrier intelligent meter (copying control device) required single-phase (three-phase) standard reference alternating voltage, and this alternating voltage is converted into less alternating voltage by the transformer in ammeter.Obtain by rectifier bridge the DC voltage that amplitude is about 12V, the carrier module that this DC voltage is ammeter provides direct current output.By 7805 stabilivolt voltage stabilizings, the value of obtaining is about the DC voltage of 5.7V, and this voltage becomes by the step-down of diode the DC voltage that numerical value is about 5V, for other funtion part of ammeter provides direct supply.
When detection, first take off the carrier module of ammeter, ac voltage is measured at secondary side winding place at transformer, by the analyzing and processing of DSP, if this magnitude of voltage is lower than setting initial value (according to the desirable no-load voltage ratio of the transformer of the voltage of a winding of transformer and Biao Nei, set this value and leave certain nargin), the mistake power down fault of judging this ammeter is to be damaged and caused by transformer in table, the GPIO pin output high level of DSP, controls corresponding fault type pilot lamp.
After detection finds that the interior transformer function of tested table is normal, contactor KM1 and KM2 are in closed original state, now being equivalent to access a resistance at the direct supply place of carrier module is the pure resistive resistance of 96 Ω (precision 5%), by the analyzing and processing of DSP, if this DC voltage value is not (12
1) within the scope of V, the mistake power down fault of judging this ammeter is to be caused by ammeter load capacity deficiency, and the GPIO pin output high level of DSP, controls corresponding fault type pilot lamp.
If DSP has judged the load capacity of ammeter and has also met the demands, on tested ammeter, carrier module is installed, image data type and acquisition time interval in tested electric energy meter are set, then according to the parameter of setting, copy control device and tested ammeter and carry out carrier communication.Now contactor KM1 and KM2 switch to off-state by closure, DSP carries out analyzing and processing to the direct supply voltage of carrier module, if this DC voltage is lower than 11V, the mistake power down fault of judging this ammeter is excessive the causing of dynamic power consumption by communication module, the GPIO pin output high level of DSP, controls corresponding fault type pilot lamp.
By a kind of single-phase carrier intelligent electric energy meter mistake of the utility model power down fail analysis device, can carry out concrete failure reason analysis for mistake power down fault, be convenient to analyze in time and handling failure, not only ensure the operation accurately and reliably of electric energy meter, also avoided the metering dispute between electric company and electricity consumption client.
The undeclared part that relates in the utility model is same as the prior art or adopt prior art to be realized.
Claims (1)
1. a single-phase carrier intelligent electric energy meter mistake power down fail analysis device, is characterized in that, described device by three-phase standard source, copy control device, relay, control module, modulate circuit, load box and form; Three-phase standard source connects respectively a winding copying control device and tested ammeter transformer; The control module being made up of with AD DSP is connected two road modulate circuits: two input ports of a road modulate circuit are parallel-connected in the Secondary Winding of tested ammeter transformer; Two input ports of another road modulate circuit are connected in the output terminal of tested ammeter rectifier bridge in parallel; Load box is connected the output terminal of tested ammeter rectifier bridge with KM2 by contactor KM1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420191940.9U CN203849399U (en) | 2014-04-21 | 2014-04-21 | Single-phase carrier wave intelligent electric energy meter mis-power failure fault analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420191940.9U CN203849399U (en) | 2014-04-21 | 2014-04-21 | Single-phase carrier wave intelligent electric energy meter mis-power failure fault analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN203849399U true CN203849399U (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420191940.9U Expired - Fee Related CN203849399U (en) | 2014-04-21 | 2014-04-21 | Single-phase carrier wave intelligent electric energy meter mis-power failure fault analyzer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112396822A (en) * | 2020-10-11 | 2021-02-23 | 浙江晨泰科技股份有限公司 | Carrier interface event reporting and detecting device |
| CN112748389A (en) * | 2019-10-31 | 2021-05-04 | 河南许继仪表有限公司 | On-site intelligent single-phase electric energy meter fault diagnosis instrument |
-
2014
- 2014-04-21 CN CN201420191940.9U patent/CN203849399U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112748389A (en) * | 2019-10-31 | 2021-05-04 | 河南许继仪表有限公司 | On-site intelligent single-phase electric energy meter fault diagnosis instrument |
| WO2021082531A1 (en) * | 2019-10-31 | 2021-05-06 | 河南许继仪表有限公司 | On-site fault diagnosis instrument for intelligent single-phase electric energy meter |
| CN112396822A (en) * | 2020-10-11 | 2021-02-23 | 浙江晨泰科技股份有限公司 | Carrier interface event reporting and detecting device |
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| Date | Code | Title | Description |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20180421 |