CN203178379U - Intelligent electric-energy-meter electromagnetic compatibility test system - Google Patents
Intelligent electric-energy-meter electromagnetic compatibility test system Download PDFInfo
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- CN203178379U CN203178379U CN 201320149366 CN201320149366U CN203178379U CN 203178379 U CN203178379 U CN 203178379U CN 201320149366 CN201320149366 CN 201320149366 CN 201320149366 U CN201320149366 U CN 201320149366U CN 203178379 U CN203178379 U CN 203178379U
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Abstract
The utility model relates to an intelligent electric-energy-meter electromagnetic compatibility test system used to detect the electromagnetic compatibility of the tested electric energy meter. The system comprises a test generation apparatus, a power supply, a coupling/decoupling network, a linear impedance stabilization network and a disturbance tester. The test generation apparatus comprises a signal-generator, a power amplifier, a filter and an attenuator which are successively connected with each other. The attenuator is successively connected with the coupling/decoupling network, the linear impedance stabilization network and the tested electric energy meter. The power supply is connected with the coupling/decoupling network. The disturbance tester is connected with the linear impedance stabilization network. Compared to the prior art, by using the system of the utility model, a intelligent electric-energy-meter electromagnetic compatibility test can be accurately, rapidly and conveniently performed.
Description
Technical field
The utility model relates to electric energy meter Performance Detection field, especially relates to a kind of intelligent electric energy meter electromagnetic compatibility test system.
Background technology
Along with the increasingly extensive application of various electronic equipments, the research of electromagnetic compatibility control technology has become an emerging research topic.Developing rapidly of mobile communication nearly ten years, the continuous employing of various wireless new equipments, the frequency that electromagnetic interference (EMI) takes place also strengthens with harm thereupon.And because the centralized intelligence ammeter works in the residential neighborhoods, be easy to be subjected to inside and outside various electromagnetic interference (EMI) of system, so electromagnetic Compatibility Design is the important step of total system design.Because introduced microcontroller in the design of intelligent electric meter, this Electro Magnetic Compatibility to equipment is had higher requirement.Main cause is that extraneous electromagnetic interference (EMI) may cause programme controlled pointer " race flies ", may cause electric quantity data mistake, lose even the confusion of system.Because the special status of ammeter in network system can not make it restPose phenomenons such as treatment facility abnormal work even deadlock as other electronic equipments by resetting regularly.Therefore, must take to improve the measure of intelligent electric meter Electro Magnetic Compatibility from the source, to strengthen its antijamming capability, guarantee its normal stable operation under defined terms.
The utility model content
The purpose of this utility model is exactly the intelligent electric energy meter electromagnetic compatibility test system that a kind of precise and high efficiency is provided for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of intelligent electric energy meter electromagnetic compatibility test system, Electro Magnetic Compatibility for detection of tested electric energy meter, this system comprises test generating means, power supply, coupling/decoupling network, linear impedance stabilization network and harassing and wrecking tester, described test generating means is connected with coupling/decoupling network, linear impedance stabilization network and tested electric energy meter successively, described power supply is connected with coupling/decoupling network, and described harassing and wrecking tester is connected with linear impedance stabilization network.
Described test generating means comprises signal generator, power amplifier, wave filter and the attenuator that connects successively, and described attenuator is connected with coupling/decoupling network.
Described wave filter comprises low-pass filter and Hi-pass filter.
Compared with prior art, the utility model can carry out intelligent electric energy meter electromagnetic compatibility test accurately, fast and easily.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure, 1 is the test generating means, and 2 is signal generator, and 3 is power amplifier, and 4 is wave filter, and 5 is attenuator, and 6 is power supply, and 7 are coupling/decoupling network, and 8 is linear impedance stabilization network, and 9 are the harassing and wrecking tester, and 10 is tested electric energy meter.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
A kind of intelligent electric energy meter electromagnetic compatibility test system, as shown in Figure 1, Electro Magnetic Compatibility for detection of tested electric energy meter 10, this system comprises test generating means 1, power supply 6, coupling/decoupling network 7, linear impedance stabilization network 8 and harassing and wrecking tester 9, test generating means 1 comprises the signal generator 2 that connects successively, power amplifier 3, wave filter 4 and attenuator 5, attenuator 5 successively with coupling/decoupling network 7, linear impedance stabilization network 8 and tested electric energy meter 10 connect, power supply 6 is connected with coupling/decoupling network 7, and harassing and wrecking tester 9 is connected with linear impedance stabilization network 8.Wherein, wave filter 4 comprises low-pass filter and Hi-pass filter.
The effect of wave filter 4 is to disturb for preventing that signal harmonic from producing tested electric energy meter 10; Attenuator 5 is to specify output impedance to reduce power amplifier to the degree that do not match of coupling/decoupling network 7 for test generating means 1 is reached; Coupling/decoupling network 7 is that undesired signal is applied on power supply 6 circuits; Linear impedance stabilization network 8 (LISN) is the conduction electromagnetic interference measurement, EMI measurement equipment of stipulating in the world at present, will come stube cable near the actual installation condition of tested electric energy meter 10 as far as possible before the test.Earlier testing level (testing level when not adding modulation) is transferred to the setting of test class during test, then by 1kHz Sine Wave Amplitude Modulation (degree of depth 80%).Test is no more than 1.5 * 10 with speed
-3Ten octave/seconds and in the regulation frequency range sweep check (the frequency sweep stride is no more than 1% of a last frequency values, and the residence time of each frequency is no less than the time of the required operation of ammeter and response) whether observe function and the performance of tested electric energy meter 10 simultaneously normal.
Claims (3)
1. intelligent electric energy meter electromagnetic compatibility test system, Electro Magnetic Compatibility for detection of tested electric energy meter, it is characterized in that, this system comprises test generating means, power supply, coupling/decoupling network, linear impedance stabilization network and harassing and wrecking tester, described test generating means is connected with coupling/decoupling network, linear impedance stabilization network and tested electric energy meter successively, described power supply is connected with coupling/decoupling network, and described harassing and wrecking tester is connected with linear impedance stabilization network.
2. a kind of intelligent electric energy meter electromagnetic compatibility test according to claim 1 system, it is characterized in that, described test generating means comprises signal generator, power amplifier, wave filter and the attenuator that connects successively, and described attenuator is connected with coupling/decoupling network.
3. a kind of intelligent electric energy meter electromagnetic compatibility test according to claim 2 system is characterized in that described wave filter comprises low-pass filter and Hi-pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320149366 CN203178379U (en) | 2013-03-28 | 2013-03-28 | Intelligent electric-energy-meter electromagnetic compatibility test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320149366 CN203178379U (en) | 2013-03-28 | 2013-03-28 | Intelligent electric-energy-meter electromagnetic compatibility test system |
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| Publication Number | Publication Date |
|---|---|
| CN203178379U true CN203178379U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320149366 Expired - Lifetime CN203178379U (en) | 2013-03-28 | 2013-03-28 | Intelligent electric-energy-meter electromagnetic compatibility test system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439545A (en) * | 2013-09-09 | 2013-12-11 | 扬州市万泰电器厂有限公司 | Analysis design method for reducing radiation interference of intelligent electric energy meter |
| CN104076322A (en) * | 2014-07-24 | 2014-10-01 | 黑龙江省电工仪器仪表工程技术研究中心有限公司 | Single-phase or three-phase electric energy meter constant magnetic field affection test device |
| CN105158584A (en) * | 2015-08-11 | 2015-12-16 | 国电南瑞科技股份有限公司 | Multi-source electromagnetic disturbance test equipment and test method |
| CN105425074A (en) * | 2015-12-01 | 2016-03-23 | 杭州远方仪器有限公司 | Multifunctional coupling/decoupling network |
| CN107907851A (en) * | 2017-11-14 | 2018-04-13 | 国网山东省电力公司电力科学研究院 | A kind of ancillary test device and method of electric energy meter EMC test |
-
2013
- 2013-03-28 CN CN 201320149366 patent/CN203178379U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439545A (en) * | 2013-09-09 | 2013-12-11 | 扬州市万泰电器厂有限公司 | Analysis design method for reducing radiation interference of intelligent electric energy meter |
| CN103439545B (en) * | 2013-09-09 | 2016-05-04 | 扬州万泰电子科技有限公司 | A kind of analysis design method that reduces intelligent electric energy meter radiation interference |
| CN104076322A (en) * | 2014-07-24 | 2014-10-01 | 黑龙江省电工仪器仪表工程技术研究中心有限公司 | Single-phase or three-phase electric energy meter constant magnetic field affection test device |
| CN105158584A (en) * | 2015-08-11 | 2015-12-16 | 国电南瑞科技股份有限公司 | Multi-source electromagnetic disturbance test equipment and test method |
| CN105425074A (en) * | 2015-12-01 | 2016-03-23 | 杭州远方仪器有限公司 | Multifunctional coupling/decoupling network |
| CN105425074B (en) * | 2015-12-01 | 2018-03-02 | 杭州远方仪器有限公司 | A kind of multi-functional coupling uncoupling network |
| CN107907851A (en) * | 2017-11-14 | 2018-04-13 | 国网山东省电力公司电力科学研究院 | A kind of ancillary test device and method of electric energy meter EMC test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |