CN202471955U - Connection system applicable to communication performance comparative test of multiple carrier electric energy meters - Google Patents
Connection system applicable to communication performance comparative test of multiple carrier electric energy meters Download PDFInfo
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- CN202471955U CN202471955U CN2012201026486U CN201220102648U CN202471955U CN 202471955 U CN202471955 U CN 202471955U CN 2012201026486 U CN2012201026486 U CN 2012201026486U CN 201220102648 U CN201220102648 U CN 201220102648U CN 202471955 U CN202471955 U CN 202471955U
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- carrier electric
- energy meter
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Abstract
The utility model relates to a connection system applicable to the communication performance comparative test of multiple carrier electric energy meters. The connection system consists of magnetic loop winding inductors, dummy loads, a power-frequency power supply and the carrier electric energy meters, wherein the magnetic loop winding inductors are in series connection with the power-frequency power supply and the carrier electric energy meters respectively, the carrier electric energy meters are connected with the dummy loads, and the power-frequency power supply is in parallel connection with the carrier electric energy meters. According to the connection system, an impedance conversion role is played by using the magnetic loop winding inductors which are in series connection with power input loops of the carrier electric energy meters, and the power consumption information is obtained by using the dummy loads which are in series connection with output loops of the carrier electric energy meters, so that the carrier communication performance comparative test of the multiple carrier electric energy meters becomes possible.
Description
Technical field
The utility model relates to power information acquisition system metrology and measurement field, specifically is a kind of connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance.
Background technology
Carrier electric energy meter is to be connected user port, plays and gathers the effect of power information in order to metering, and be one of simple first-selected communication plan of construction and utilize low-voltage power line to carry out the image data transmission.For the carrier electric energy meter that guarantees each producer can exchange, must carry out the various tests of carrier communication to it, comprising the communication performance competitive trials, need a plurality of carrier electric energy meters be connected in parallel for this reason and reduce the test duration.Because every carrier electric energy meter all has the carrier wave impedance, considers that the traffic load of low-voltage power line possibly be low to moderate 10 Ω, in order to improve fan-out capability; So the also corresponding reduction of output impedance of carrier electric energy meter, even near 10 Ω, after this just causes N carrier electric energy meter and connects; Output impedance possibly reduce N doubly, has exceeded the output drive ability of carrier electric energy meter, causes the output signal of carrier electric energy meter to occur unusual; Cause the carrier communication failure, influence the carrying out of communication experiment.
Summary of the invention
The purpose of the utility model provides a kind of connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance, and it can satisfy the testing requirements that the polylith carrier electric energy meter carries out the competitive trials of carrier communication performance.
The utility model is realized above-mentioned purpose through following technical scheme: a kind of connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance, form by magnet ring coiling inductance, fictitious load, power frequency supply and carrier electric energy meter.Said magnet ring coiling inductance is connected in series with power frequency supply, carrier electric energy meter respectively, and carrier electric energy meter links to each other with fictitious load, and power frequency supply is parallelly connected with carrier electric energy meter.
The quantity of said polylith carrier electric energy meter is 6～12.
Said magnet ring coiling inductance is to form through the 3 circle leads of coiling on magnet ring, is that its impedance is 110 ~ 120 Ω under the 500kHz in frequency.The material of magnet ring is a ferrocart core, and the magnet ring external diameter is 26 ~ 27mm, and internal diameter is 14 ~ 15mm, and height is 12 ~ 13mm.
Said fictitious load is to be serially connected between the output loop of tested electric energy meter, forms load current, produces power information.
Said power frequency supply is rated voltage 220V, and frequency is the AC power of 50 ~ 60Hz.
Said carrier electric energy meter has the carrier communication chip, can carry out the carrier electric energy meter of communication according to communication protocol.
The advantage of the utility model is:
The problem that influences communication test that the carrier wave impedance diminished and causes when this system can be good at solving the polylith carrier electric energy meter owing to the parallel connection test satisfies the testing requirements of the carrier communication performance competitive trials of 6 ~ 12 carrier electric energy meters.
Description of drawings
Fig. 1 is the described hardware connection layout that is applicable to the connected system of polylith carrier electric energy meter communication performance competitive trials of the utility model.
Embodiment
Below through accompanying drawing and embodiment the technical scheme of the utility model is described further.
Contrast accompanying drawing 1, the said connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance of the utility model is made up of magnet ring coiling inductance, fictitious load, power frequency supply and carrier electric energy meter.Wherein, the input of the power supply of every carrier electric energy meter inserts magnet ring coiling inductance through obtaining with the power frequency supply parallel connection with test in the power supply input circuit of carrier electric energy meter, in the output circuit of carrier electric energy meter, insert fictitious load.
When 6 ~ 12 carrier electric energy meters pass through to link to each other with magnet ring coiling inductance; Output impedance originally brings series impedance to improve because having increased magnet ring; When carrier electric energy meter such as Fig. 1 connect; The reduction amount of output impedance has been obtained counteracting by the increase of magnet ring series impedance, thereby has guaranteed normally carrying out of test.And because the power frequency impedance of carrier wave meter to be detected is higher, and the power frequency impedance of magnet ring is less, so total power frequency impedance is almost constant behind the switch-on coil, thereby does not influence carrier wave meter supplied character to be detected.
Fictitious load is serially connected between the output loop of tested carrier electric energy meter, forms load current, produces power information, obtains suitable test figure sample, so that suitable numerical value is arranged during the competitive trials of carrier communication performance.
The utility model provides a kind of connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance; Magnet ring coiling inductance through being serially connected in the carrier electric power apparent source input circuit plays the impedance conversion effect; Fictitious load through being serially connected in the carrier electric energy meter output loop obtains power information, makes the communication performance competitive trials of polylith carrier electric energy meter become possibility.
For a kind of connected system that is applicable to the competitive trials of 6 ~ 12 carrier wave meter carrier communication performances to be detected of being set forth among the utility model embodiment; All within the spirit and principle of the utility model; Any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance; It is characterized in that; This connected system is made up of magnet ring coiling inductance, fictitious load, power frequency supply and carrier electric energy meter; Said magnet ring coiling inductance is connected in series with power frequency supply, carrier electric energy meter respectively, and carrier electric energy meter links to each other with fictitious load, and power frequency supply is parallelly connected with carrier electric energy meter.
2. the connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance according to claim 1 is characterized in that the quantity of said polylith carrier electric energy meter is 6～12.
3. the connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance according to claim 1; It is characterized in that; Said magnet ring coiling inductance is to form through the 3 circle leads of coiling on magnet ring, and its impedance is 110 ~ 120 Ω under frequency 500kHz.
4. the connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance according to claim 3 is characterized in that the material of said magnet ring is a ferrocart core, and the magnet ring external diameter is 26 ~ 27mm, and internal diameter is 14 ~ 15mm, and height is 12 ~ 13mm.
5. the connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance according to claim 1 is characterized in that said fictitious load is to be serially connected between the output loop of tested carrier electric energy meter.
6. the connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance according to claim 1 is characterized in that said power frequency supply is rated voltage 220V, and frequency is the AC power of 50 ~ 60Hz.
7. the connected system that is applicable to the competitive trials of polylith carrier electric energy meter communication performance according to claim 1 is characterized in that said polylith carrier electric energy meter has the carrier communication chip, can carry out the carrier electric energy meter of communication according to communication protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201026486U CN202471955U (en) | 2012-03-19 | 2012-03-19 | Connection system applicable to communication performance comparative test of multiple carrier electric energy meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201026486U CN202471955U (en) | 2012-03-19 | 2012-03-19 | Connection system applicable to communication performance comparative test of multiple carrier electric energy meters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471955U true CN202471955U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201026486U Expired - Fee Related CN202471955U (en) | 2012-03-19 | 2012-03-19 | Connection system applicable to communication performance comparative test of multiple carrier electric energy meters |
Country Status (1)
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| CN (1) | CN202471955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356897A (en) * | 2017-07-20 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | Carrier electric energy meter detecting system and detection method |
| CN107783074A (en) * | 2017-09-28 | 2018-03-09 | 云南电网有限责任公司电力科学研究院 | Bandwidth carrier detection system of electric energy meter and detection method |
-
2012
- 2012-03-19 CN CN2012201026486U patent/CN202471955U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356897A (en) * | 2017-07-20 | 2017-11-17 | 云南电网有限责任公司电力科学研究院 | Carrier electric energy meter detecting system and detection method |
| CN107783074A (en) * | 2017-09-28 | 2018-03-09 | 云南电网有限责任公司电力科学研究院 | Bandwidth carrier detection system of electric energy meter and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121003 Termination date: 20150319 |
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| EXPY | Termination of patent right or utility model |