CN202948556U - Test rig for carrier meter-reading of low-voltage integrated metering terminal - Google Patents
Test rig for carrier meter-reading of low-voltage integrated metering terminal Download PDFInfo
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- CN202948556U CN202948556U CN 201220705116 CN201220705116U CN202948556U CN 202948556 U CN202948556 U CN 202948556U CN 201220705116 CN201220705116 CN 201220705116 CN 201220705116 U CN201220705116 U CN 201220705116U CN 202948556 U CN202948556 U CN 202948556U
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Abstract
The utility model discloses a test rig for the carrier meter-reading of a low-voltage integrated metering terminal, which comprises a three-phase power supply, an air switch, an isolation transformer, a plurality of signal attenuators, a plurality of noise source modules, a plurality of three-phase carrier modules, a plurality of single-phase carrier modules and a plurality of carrier module indicating lamps, wherein the three-phase power supply passes through the air switch to be connected with the primary side of the isolation transformer, the secondary side of the isolation transformer is connected in series with the signal attenuators through the noise source modules and then is respectively connected with the plurality of three-phase carrier modules and the plurality of single-phase carrier modules, and meanwhile, and the secondary side also can be simultaneously connected with the plurality of three-phase carrier modules and the plurality of single-phase carrier modules, and used for supplying power to the plurality of three-phase carrier modules and the plurality of single-phase carrier modules. The test rig disclosed by the utility model is simple and reliable in design, multifunctional, safe and energy-saving; and the test rig solves the contradiction between efficiency and cost, so that the costs of design and use are greatly reduced while the field use conditions of users are really simulated.
Description
Technical field
The utility model relates to a kind of test-bed body of checking meter for the low-voltage collecting meter reading terminal carrier.
Background technology
At present, the tester is when carrying out the test of low-voltage collecting meter reading terminal carrier meter-reading function, because single-phase carrier electric energy meter and Three Phase Carrier Based electric energy meter quantity are very limited, test environment is built more difficult, substantially be not configured the stability of checking meter, the long-time running reliability testing of a large amount of carrier electric energy meters, this has brought great risk for the stable operation in the large configuration of load situation of terminal filed, also is difficult to really satisfy client's quality requirements.The success ratio that frequently occurs checking meter in comprehensive present on-the-spot operational process is not high, poor stability, the progress file is damage etc. indiscoverable problem in laboratory easily, we improve testing level an urgent demand, strengthen means of testing, the stability of checking meter, reliability testing, thereby improve rapidly the Quality situation of low-voltage collecting meter reading terminal, meet customer need fast.
Shortcoming when using actual ammeter to build test environment mainly contains: 1, cost is high; 2, wiring is complicated, and floor area is huge; 3, security is bad, easily short circuit; 4, test environment can not the on-the-spot operating position of real simulation user.
The utility model content
The purpose of this utility model is to provide the test-bed body that a kind of stability is high and cost is low low-voltage collecting meter reading terminal carrier is checked meter.
the test-bed body that this low-voltage collecting meter reading terminal carrier that the utility model provides is checked meter comprises three-phase supply, air switch, isolating transformer, some signal attenuators, some noise source modules, some Three Phase Carrier Based modules, some single-phase carrier modules and some carrier module pilot lamp, described three-phase supply is connected with the former limit of isolating transformer through after air switch, the secondary of isolating transformer divides A phase and N mutually, B phase and N mutually and the C phase with N mutually respectively by after a signal attenuator, the A corresponding with the power interface of the some Three Phase Carrier Based modules terminal that joins respectively, the B terminal that joins, C terminal and the N terminal that joins that joins joins, be used for simultaneously to some Three Phase Carrier Based module for power supply, its secondary also divides A phase and N mutually, B phase and N are mutually and C phase and the N A corresponding with the power interface of the some single-phase carrier modules terminal that joins respectively mutually, B join terminal with, C terminal and the N terminal that joins that joins joins, the A phase of this secondary and N also join by terminal and the N terminal that joins that joins of the A corresponding with the power interface of some single-phase carrier modules after noise source module series connection signal attenuator mutually simultaneously, its B phase and N also join by terminal and the N terminal that joins that joins of the B corresponding with the power interface of some single-phase carrier modules after noise source module series connection signal attenuator mutually, be used for to some single-phase carrier module for power supply, some carrier module pilot lamp are corresponding connected one by one with some Three Phase Carrier Based modules and some single-phase carrier modules, are used to indicate the carrier module working condition.
Described some Three Phase Carrier Based modules and some single-phase carrier modules adopt the plug form to connect.This single-phase carrier module of the bright expression of described carrier module pilot lamp or Three Phase Carrier Based module are working properly.
The utility model is to come artificial actual electric energy meter networking test with virtual electric energy meter, and by increasing the signal attenuator of certain reference value, be easy to the multistage relay networking environment of analog carrier signal, can better embody the actual operating position at user scene, incorporate again the noise source module, make the utility model can simulate more truly power utilization environment with radio area, bring very big facility to the stability test of concentrator research and development, limit test etc.The utility model simplicity of design is reliable, and is multiple functional, and energy-saving safe has solved the contradiction between effect and cost, greatly reduces the design and use cost.
Description of drawings
Fig. 1 is the circuit theory diagrams of embodiment one of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises three-phase supply, air switch, isolating transformer, some signal attenuators, some noise source modules, some Three Phase Carrier Based modules, some single-phase carrier modules and some carrier module pilot lamp.Wherein, the Three Phase Carrier Based module is used for simulation Three Phase Carrier Based electric energy meter, and the single-phase carrier module is used for the simulation single-phase carrier electric energy meter.
Three-phase supply is connected with the former limit of isolating transformer through after air switch, the secondary of isolating transformer divide A phase and N mutually, B phase and N mutually and the C phase with N mutually respectively by after a signal attenuator, terminal, B terminal, C terminal and the N terminal that joins that joins that joins that respectively can the A corresponding with the power interface of 4 groups of Three Phase Carrier Based module groups joins joins (every group of Three Phase Carrier Based module group comprises 3 Three Phase Carrier Based modules), is used for giving simultaneously this 12 Three Phase Carrier Based module for power supply.
Meanwhile, the C phase of this secondary and N via a signal attenuator after the C corresponding with single-phase carrier module cluster terminal and the N terminal that joins that joins join; Being connected in series afterwards after a signal attenuator C corresponding with No. two single-phase carrier module clusters terminal and the N terminal that joins that joins joins again.The B phase of this secondary and N via signal attenuator of a noise source module series connection after the B corresponding with No. three single-phase carrier module clusters terminal and the N terminal that joins that joins join; Being connected in series afterwards after a signal attenuator B corresponding with No. four single-phase carrier module clusters terminal and the N terminal that joins that joins joins again; Being connected in series afterwards after a signal attenuator B corresponding with No. five single-phase carrier module clusters terminal and the N terminal that joins that joins joins again.The A phase of this secondary and N connect via the noise source module of two series connection after a signal attenuator again, and the A corresponding with No. six single-phase carrier module clusters terminal and the N terminal that joins that joins joins; Being connected in series afterwards after a signal attenuator A corresponding with No. seven single-phase carrier module clusters terminal and the N terminal that joins that joins joins again; Being connected in series afterwards after a signal attenuator A corresponding with No. eight single-phase carrier module clusters terminal and the N terminal that joins that joins joins again.A single-phase carrier module cluster, No. two single-phase carrier module clusters, No. three single-phase carrier module clusters, No. four single-phase carrier module clusters, No. five single-phase carrier module clusters, No. six single-phase carrier module clusters, No. seven single-phase carrier module clusters and No. eight single-phase carrier module clusters include 4 groups of single-phase carrier module groups, corresponding 4 pairs of posts; And every group of single-phase carrier module group comprises 6 single-phase carrier modules.This part circuit is used for simultaneously to 192 single-phase carrier module for power supply.
Each single-phase carrier module of the present utility model is connected with the Three Phase Carrier Based module and is adopted pluggable mode to connect.Each carrier module can independently be received and dispatched message.All connect respectively a carrier module pilot lamp in every single-phase carrier module and every Three Phase Carrier Based module.When this pilot lamp is bright, represent that this carrier module is working properly.
The utility model can be had good luck, and data item of every copy reading just adds 1 on the basis of last sub-value.The point energy datum increases automatically, and data integrity, satisfies actual needs of checking meter.Simultaneously, the utility model is supported a plurality of data item (forward and reverse active energy indicating value, forward and reverse reactive energy indicating value, voltage, electric current, power, freeze the meritorious total electric energy indicating value of forward day, freeze the meritorious total electric energy indicating value of forward the moon, freeze the meritorious total electric energy indicating value of forward the day of checking meter).After operation a period of time, these data item can reset to initial value.
The utility model can be built very soon and surpass 200 carrier electric energy meters, the experimental enviroment of 200 carrier electric energy meter networkings of simulation, when testing, can more real analog subscriber the actual conditions at scene.
To build 200 ammeter test environments as example, the utility model and existing test-bed body carry out the cost contrast, as shown in Table 1.
Table one:
| Actual ammeter cost of access drops into | The Virtual table cost of access drops into | |
| 200 single-phase smart meters | 30000 | 10000 |
| 10 three-phase intelligent tables | 4500 | 850 |
| The stage body cost of access | 36000 | 7000 |
| Integrated cost | 70500 | 17850 |
Can draw from table, the economic benefit of acquisition is: save 52650 yuan of costs.If build the test environment of 600 carrier electric energy meters, can save 3*52650=157950 unit.
All carrier electric energy meters that unified access test needs on the utility model, the cabling standard, security is secure.
After adding the fixed signal attenuator of certain reference value, on the utility model, be easy to simulate the network environment of the multistage relaying of carrier signal, can better embody the actual operating position at user scene; Incorporate the noise source module again, make the utility model just can simulate more really the power utilization environment of using radio area, stability test, the limit test of researching and developing to concentrator bring very big facility.
Claims (3)
1. test-bed body that the low-voltage collecting meter reading terminal carrier is checked meter, comprise three-phase supply, it is characterized in that, also comprise air switch, isolating transformer, some signal attenuators, some noise source modules, some Three Phase Carrier Based modules, some single-phase carrier modules and some carrier module pilot lamp, described three-phase supply is connected with the former limit of isolating transformer through after air switch, the secondary of isolating transformer divides A phase and N mutually, B phase and N mutually and the C phase with N mutually respectively by after a signal attenuator, the A corresponding with the power interface of the some Three Phase Carrier Based modules terminal that joins respectively, the B terminal that joins, C terminal and the N terminal that joins that joins joins, be used for simultaneously to some Three Phase Carrier Based module for power supply, its secondary also divides A phase and N mutually, B phase and N are mutually and C phase and the N A corresponding with the power interface of the some single-phase carrier modules terminal that joins respectively mutually, B join terminal with, C terminal and the N terminal that joins that joins joins, the A phase of this secondary and N also join by terminal and the N terminal that joins that joins of the A corresponding with the power interface of some single-phase carrier modules after noise source module series connection signal attenuator mutually simultaneously, its B phase and N also join by terminal and the N terminal that joins that joins of the B corresponding with the power interface of some single-phase carrier modules after noise source module series connection signal attenuator mutually, be used for to some single-phase carrier module for power supply, some carrier module pilot lamp are corresponding connected one by one with some Three Phase Carrier Based modules and some single-phase carrier modules, are used to indicate the carrier module working condition.
2. the low-voltage collecting meter reading terminal carrier according to claim 1 test-bed body of checking meter, is characterized in that, described some Three Phase Carrier Based modules and some single-phase carrier modules adopt the plug form to connect.
3. the low-voltage collecting meter reading terminal carrier according to claim 1 test-bed body of checking meter, is characterized in that, this single-phase carrier module of the bright expression of described carrier module pilot lamp or Three Phase Carrier Based module are working properly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220705116 CN202948556U (en) | 2012-12-19 | 2012-12-19 | Test rig for carrier meter-reading of low-voltage integrated metering terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220705116 CN202948556U (en) | 2012-12-19 | 2012-12-19 | Test rig for carrier meter-reading of low-voltage integrated metering terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202948556U true CN202948556U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220705116 Expired - Lifetime CN202948556U (en) | 2012-12-19 | 2012-12-19 | Test rig for carrier meter-reading of low-voltage integrated metering terminal |
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| Country | Link |
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| CN (1) | CN202948556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506375A (en) * | 2014-10-10 | 2015-04-08 | 珠海慧信微电子有限公司 | Power line broadband carrier communication module networking test system |
-
2012
- 2012-12-19 CN CN 201220705116 patent/CN202948556U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506375A (en) * | 2014-10-10 | 2015-04-08 | 珠海慧信微电子有限公司 | Power line broadband carrier communication module networking test system |
| CN104506375B (en) * | 2014-10-10 | 2018-02-06 | 珠海慧信微电子有限公司 | Power wire broadband carrier communication network module test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee after: WILLFAR INFORMATION TECHNOLOGY Co.,Ltd. Address before: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee before: HUNAN WEISHENG INFORMATION TECHNOLOGY CO.,LTD. Address after: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee after: HUNAN WEISHENG INFORMATION TECHNOLOGY CO.,LTD. Address before: 410205 No. 468 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee before: CHANGSHA WASION INFORMATION TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |