CN102565753A - Portable electromagnetic compatibility (EMC) test-level pulse timer for electric energy meter - Google Patents
Portable electromagnetic compatibility (EMC) test-level pulse timer for electric energy meter Download PDFInfo
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- CN102565753A CN102565753A CN2012100206912A CN201210020691A CN102565753A CN 102565753 A CN102565753 A CN 102565753A CN 2012100206912 A CN2012100206912 A CN 2012100206912A CN 201210020691 A CN201210020691 A CN 201210020691A CN 102565753 A CN102565753 A CN 102565753A
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Abstract
The invention discloses a portable electromagnetic compatibility (EMC) test-level pulse timer for an electric energy meter. A photoelectric probe sampling port and a pulse input sampling port are formed in a metal shell; a photoelectric probe and a light guide column of the photoelectric probe are arranged behind the photoelectric probe sampling port; the pulse input sampling port is connected with a pulse output section of an electric energy meter to be measured through a shielding wire; the photoelectric probe, and the output end and the pulse input sampling port of the light guiding column of the photoelectric probe are divided into two paths, one path is connected in parallel with a counter, and the other path is connected with the outside of the metal shell through the shielding wire from a pulse signal output end and is connected with an electric energy meter inspection device; the counter is connected with the timer and a time output module sequentially; the timer is connected with a comparator and an error output module sequentially at the same time; and the comparator is connected with a measurement module simultaneously. The pulse timer can be conveniently and intuitively operated while measuring accuracy is ensured, so that measuring efficiency is greatly improved; and the pulse timer has high electromagnetic interference resistance.
Description
Technical field
The present invention relates to a kind of electric energy metrical technical field, specifically is a kind of portable EMC test level electric energy meter pulser timer.
Background technology
The conduction interference immunity to interference of the fast transient pulse train immunity to interference of regulation, surge immunity, radio-frequency field induction and the test of attenuation oscillasion impulse immunity to interference among the electric energy meter type evaluation outline JJF 1245.1-2010 " the general requirement of installing type electric energy meter type evaluation outline "; All require when applying interference the precision with calibrator for watt-hour meter check electric energy meter, the test unit that satisfies this test at present is generally bulky, cost an arm and a leg.So the mechanism for testing and the electric energy meter manufacturer of a lot of middle and small scales all adopt alternative method; Promptly through using single-phase or threephase load; To electric energy meter voltage, current signal are provided; Produce pulse, the difference of pulse number judges whether electric energy meter is qualified when adding interference in the more identical time and not adding interference.This method economy, facility, but pulse number all will rely on naked eyes to remove number at present, and efficient is low, and is also bigger to the injury of human eye.
In addition, some producer has also adopted electric energy meter on-site calibrator etc. in order to test.But this series products does not consider that electric energy meter is when accepting the test of electromagnetic compatibility immunity to interference; To lead and the issuable electromagnetic interference (EMI) of surrounding enviroment of linking to each other; Therefore when electric energy meter is accepted the test of electromagnetic compatibility immunity to interference, this kind equipment often also can be by interference and cisco unity malfunction.In addition, then there is following point with the matching used photoelectricity sampling probe of calibrator for watt-hour meter on the market at present: one, can not work alone, just a utility appliance of calibrator for watt-hour meter; The possibility that is interfered when two, existing electric energy meter to accept the electromagnetic compatibility immunity experiment too.
Summary of the invention
Technical matters to be solved by this invention provides a kind of portable EMC test level electric energy meter pulser timer; It can not only be counted and timing electric energy meter photosignal, pulse signal automatically; And this device can operate as normal when the conduction interference immunity to interference of accepting fast transient pulse train immunity to interference, surge immunity, radio-frequency field induction at electric energy meter and the test of attenuation oscillasion impulse immunity to interference, not disturbed with the electromagnetic signal on the lead that links to each other by the space.
A kind of portable EMC test level electric energy meter pulser timer of the present invention; Comprise metal shell; On metal shell, be provided with photoelectric probe and pulse input two-way sample port; In metal shell, be provided with photoelectric probe and leaded light post thereof, counter, timer, metering module, comparer, error output module and time output module; Said photoelectric probe and leaded light post thereof are arranged on photoelectric probe sample port rear, and pulse input sample port links to each other with electric energy meter pulse deferent segment to be measured through shielding line, and the output terminal of photoelectric probe and leaded light post thereof and pulse input sample port are divided into two-way; One the tunnel is connected in parallel to counter, and another route pulse signal output end is outside shielding line output metal shell and connect calibrator for watt-hour meter; Counter is connection timer and time output module successively, and timer also connects comparer and error output module simultaneously successively, and comparer is connected with metering module simultaneously.
Behind the shielding line of pulse input sample port, be connected to first decoupling network, before pulse signal output end place shielding line, be provided with second decoupling network.First decoupling network is the L type decoupling network that magnet ring, differential mode inductance and electric capacity are formed; Second decoupling network is the π type decoupling network that magnet ring, differential mode inductance, electric capacity and common mode inductance are formed.
Great advantage of the present invention is that device itself has good electromagnetic immunity performance, the requirement of operate as normal when satisfying electric energy meter and accepting conduction interference immunity to interference and the test of attenuation oscillasion impulse immunity to interference of fast transient pulse train immunity to interference, surge immunity, radio-frequency field induction.Putting before this, the present invention has realized automatic counting and the timing to the electric energy meter pulse signal, thereby the liberation tester increases work efficiency, test accuracy and measuring accuracy.Cheap, easy to use, be suitable for vast middle-size and small-size testing agency and electric energy meter manufacturer and buy, use.
Device is metal shell, and display screen and button are left in the front, and is decorated with photoelectric probe location boost line; Both sides are left taps access interface (the pulse delivery outlet that connects electric energy meter), pulse signal output interface (connection calibrator for watt-hour meter) and charging inlet (as using rechargeable battery as power supply) respectively; The photoelectric probe opening is left at the back side, and photoelectric probe has certain distance apart from opening, can link to each other by the leaded light post between probe and the opening, or continuous with conical horn, the loudspeaker surfaces coated is with reflectorised paint; In the appropriate location of shell, can provide concise and to the point operation instruction.Counting, timing and function of measuring can the different circuits mode be realized, as long as can realize the principle of work in the 4th part.First decoupling network is the L type decoupling network that magnet ring, differential mode inductance and electric capacity are formed; Second decoupling network is the π type decoupling network that magnet ring, differential mode inductance, electric capacity and common mode inductance are formed.
Beneficial effect of the present invention:
This device itself has good electromagnetic immunity performance, the requirement of operate as normal when satisfying electric energy meter and accepting conduction interference immunity to interference and the test of attenuation oscillasion impulse immunity to interference of fast transient pulse train immunity to interference, surge immunity, radio-frequency field induction.Realized automatic counting and timing simultaneously, liberated the tester, improved work efficiency and test accuracy and measuring accuracy the electric energy meter pulse signal.This device is cheap, easy to use, is suitable for vast middle-size and small-size testing agency and electric energy meter manufacturer and buys, uses.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Like Fig. 1; Main body of the present invention has a metal shell; On metal shell, be provided with photoelectric probe and pulse input two-way sample port; In metal shell, be provided with photoelectric probe and leaded light post thereof, counter, timer, metering module, comparer, error output module and time output module; Said photoelectric probe and leaded light post thereof are arranged on photoelectric probe sample port rear, and pulse input sample port links to each other with electric energy meter pulse deferent segment to be measured through shielding line, and the output terminal of photoelectric probe and leaded light post thereof and pulse input sample port are divided into two-way; One the tunnel is connected in parallel to counter, and another route pulse signal output end is outside shielding line output metal shell and connect calibrator for watt-hour meter; Counter is connection timer and time output module successively, and timer also connects comparer and error output module simultaneously successively, and comparer is connected with metering module simultaneously.
This device adopts the metal shell structure; When electric energy meter being applied various conducted interference signal especially fast-pulse crowd and decay during Sasser; Electronic equipment around contained radio-frequency component can disturb with the mode of radiation in the undesired signal, shielding character can suppress this radiation interference thereby design good metal shell mechanism has preferably.Be provided with photoelectric probe and taps two-way sample port in the device.The taps sample port links to each other with electric energy meter pulse deferent segment through shielding line, and links to each other with main work loop through a L type decoupling network in device inside, thereby guarantees that the taps sample port does not receive electromagnetic interference (EMI).The photoelectricity sampling port directly reads the flashlight signal of electric energy meter through photosensitive probe, is not connected with there being lead between the electric energy meter, and Immunity Performance is better.During real work; Device is only accepted one tunnel sampled signal, when adopting the 1st signal, begins counting and timing, is n like the pulse number that is provided with; Then when adopting n+1 signal, stop counting and timing, the time that this moment, device showed is electric energy meter and sends n the time that pulse consumed.If to electric energy meter the voltage and current signal is provided through source of stable pressure and constant-current source, then device can be exported the error amount of each pulse behind input voltage value, current value and the electric energy meter constant.When using as passive element, this device also can be used as a utility appliance of calibrator for watt-hour meter and uses.
Concrete application approach of the present invention is a lot; The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement, these improvement also should be regarded as protection scope of the present invention.
Claims (3)
1. portable EMC test level electric energy meter pulser timer; It is characterized in that; Comprise metal shell; On metal shell, be provided with photoelectric probe and pulse input two-way sample port, in metal shell, be provided with photoelectric probe and leaded light post thereof, counter, timer, metering module, comparer, error output module and time output module, said photoelectric probe and leaded light post thereof are arranged on photoelectric probe sample port rear; Pulse input sample port links to each other with electric energy meter pulse deferent segment to be measured through shielding line; The output terminal of photoelectric probe and leaded light post thereof and pulse input sample port are divided into two-way, and one the tunnel is connected in parallel to counter, and another route pulse signal output end is outside shielding line output metal shell and connect calibrator for watt-hour meter; Counter is connection timer and time output module successively, and timer also connects comparer and error output module simultaneously successively, and comparer is connected with metering module simultaneously.
2. portable EMC test level electric energy meter pulser timer according to claim 1 is characterized in that, behind the shielding line of pulse input sample port, is connected to first decoupling network, before pulse signal output end place shielding line, is provided with second decoupling network.
3. portable EMC test level electric energy meter pulser timer according to claim 2 is characterized in that, first decoupling network is the L type decoupling network that magnet ring, differential mode inductance and electric capacity are formed; Second decoupling network is the π type decoupling network that magnet ring, differential mode inductance, electric capacity and common mode inductance are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100206912A CN102565753A (en) | 2012-01-30 | 2012-01-30 | Portable electromagnetic compatibility (EMC) test-level pulse timer for electric energy meter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100206912A CN102565753A (en) | 2012-01-30 | 2012-01-30 | Portable electromagnetic compatibility (EMC) test-level pulse timer for electric energy meter |
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| CN102565753A true CN102565753A (en) | 2012-07-11 |
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| CN2012100206912A Pending CN102565753A (en) | 2012-01-30 | 2012-01-30 | Portable electromagnetic compatibility (EMC) test-level pulse timer for electric energy meter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018602A (en) * | 2012-12-06 | 2013-04-03 | 中联重科股份有限公司 | Moment limiter testing device, moment limiter testing system and moment limiter testing method |
| CN106093834A (en) * | 2016-06-06 | 2016-11-09 | 宁波三星医疗电气股份有限公司 | A kind of Stress superposition test platform based on table |
| CN106154212A (en) * | 2016-08-31 | 2016-11-23 | 宜兴市森维电子有限公司 | A kind of EFT/B immunity experiment system under the conditions of electric energy meter bringing onto load |
| CN106199496A (en) * | 2016-08-17 | 2016-12-07 | 国网江西省电力公司电力科学研究院 | A kind of electrical fast transient (eft) influence amount experimental provision of intelligent electric energy meter |
| CN106932748A (en) * | 2016-09-18 | 2017-07-07 | 北京市计量检测科学研究院 | Electric energy meter tests means for anti-jamming |
| CN112061919A (en) * | 2020-08-31 | 2020-12-11 | 杭州临安森源电缆有限公司 | Method for testing timing counter of elevator |
| CN112213556A (en) * | 2020-09-08 | 2021-01-12 | 杭州涂鸦信息技术有限公司 | Load monitoring method and system for intelligent electric meter |
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| CN201464632U (en) * | 2009-07-13 | 2010-05-12 | 范永飞 | On-line detector for single phase electronic energy meter |
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| CN202057705U (en) * | 2011-04-25 | 2011-11-30 | 上海市计量测试技术研究院 | Photoelectric converter applied on electric energy meter calibration device and provided with photo-conduction tube |
| CN202093161U (en) * | 2011-04-01 | 2011-12-28 | 青岛乾程电子科技有限公司 | Mass electric energy meter pulse acquisition device |
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2012
- 2012-01-30 CN CN2012100206912A patent/CN102565753A/en active Pending
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| CN85200235U (en) * | 1985-04-01 | 1986-03-12 | 青岛电业局 | Combined meter for measuring and controlling electric energy |
| CN2483735Y (en) * | 2001-05-23 | 2002-03-27 | 深圳市科陆电子科技股份有限公司 | Photoelectric sampler for measuring of electric energy meter |
| CN201464632U (en) * | 2009-07-13 | 2010-05-12 | 范永飞 | On-line detector for single phase electronic energy meter |
| CN201749316U (en) * | 2010-07-22 | 2011-02-16 | 海盐新跃电器有限公司 | Intelligent electric energy meter clock multi-function quick tester |
| CN102087352A (en) * | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Three-phase intelligent watt-hour meter inspection device and method |
| CN201993462U (en) * | 2011-01-31 | 2011-09-28 | 浙江省电力公司 | Three-phase intelligent electric energy meter checking device |
| CN202093161U (en) * | 2011-04-01 | 2011-12-28 | 青岛乾程电子科技有限公司 | Mass electric energy meter pulse acquisition device |
| CN202057705U (en) * | 2011-04-25 | 2011-11-30 | 上海市计量测试技术研究院 | Photoelectric converter applied on electric energy meter calibration device and provided with photo-conduction tube |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018602A (en) * | 2012-12-06 | 2013-04-03 | 中联重科股份有限公司 | Moment limiter testing device, moment limiter testing system and moment limiter testing method |
| CN106093834A (en) * | 2016-06-06 | 2016-11-09 | 宁波三星医疗电气股份有限公司 | A kind of Stress superposition test platform based on table |
| CN106199496A (en) * | 2016-08-17 | 2016-12-07 | 国网江西省电力公司电力科学研究院 | A kind of electrical fast transient (eft) influence amount experimental provision of intelligent electric energy meter |
| CN106154212A (en) * | 2016-08-31 | 2016-11-23 | 宜兴市森维电子有限公司 | A kind of EFT/B immunity experiment system under the conditions of electric energy meter bringing onto load |
| CN106154212B (en) * | 2016-08-31 | 2019-04-30 | 宜兴市森维电子有限公司 | A kind of EFT/B immunity experiment system under the conditions of electric energy meter bringing onto load |
| CN106932748A (en) * | 2016-09-18 | 2017-07-07 | 北京市计量检测科学研究院 | Electric energy meter tests means for anti-jamming |
| CN112061919A (en) * | 2020-08-31 | 2020-12-11 | 杭州临安森源电缆有限公司 | Method for testing timing counter of elevator |
| CN112213556A (en) * | 2020-09-08 | 2021-01-12 | 杭州涂鸦信息技术有限公司 | Load monitoring method and system for intelligent electric meter |
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Application publication date: 20120711 |