CN205982611U - Intelligent ammeter's electric fast transient burst influence quantity experimental apparatus - Google Patents
Intelligent ammeter's electric fast transient burst influence quantity experimental apparatus Download PDFInfo
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- CN205982611U CN205982611U CN201620891516.4U CN201620891516U CN205982611U CN 205982611 U CN205982611 U CN 205982611U CN 201620891516 U CN201620891516 U CN 201620891516U CN 205982611 U CN205982611 U CN 205982611U
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- 230000001052 transient effect Effects 0.000 title claims abstract description 30
- 238000002474 experimental method Methods 0.000 claims abstract description 27
- 230000008878 coupling Effects 0.000 claims abstract description 25
- 238000010168 coupling process Methods 0.000 claims abstract description 25
- 238000005859 coupling reaction Methods 0.000 claims abstract description 25
- 238000012360 testing method Methods 0.000 claims description 35
- 230000005611 electricity Effects 0.000 claims description 11
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000012795 verification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 230000033228 biological regulation Effects 0.000 description 6
- 238000007598 dipping method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model provides an intelligent ammeter's electric fast transient burst influence quantity experimental apparatus, includes EFT signal generator, programme -controlled three phase voltage source, programme -controlled three phase current source, EFT coupling / isolator, coupling decoupling network, surveys electric energy meter, electric energy meter checkout stand and electric energy pulse line wave filter. The output in programme -controlled three phase voltage source inserts through EFT coupling / isolator is surveyed the electric energy meter, another output in programme -controlled three phase voltage source inserts the electric energy meter checkout stand, the output in programme -controlled three phase current source is connected with quilt survey electric energy meter through coupling decoupling network, and another output in programme -controlled three phase current source inserts electric energy meter checkout stand, the pulse line of electric energy meter checkout stand passes through electric energy pulse line wave filter and is surveyed the electric energy meter to link to each other, EFT signal generator inserts EFT coupling / isolator. The utility model discloses the device has been solved experiment medium voltage source and electric current source follower unstability effectively and has been produced the deviation scheduling problem easily by survey electric energy meter verification error, guarantee the utility model discloses the reliability service of experimental apparatus.
Description
Technical field
This utility model is related to a kind of electrical fast transient (eft) influence amount experimental provision of intelligent electric energy meter, belongs to intelligence electricity
Can table technical field.
Background technology
The major function of intelligent electric meter is to provide the user the interface of registering one's residence of an electrical network, is responsible for the power consumption of user is entered
Row metering.The work on the spot environment that the metering accuracy of intelligent electric energy meter is located with it is closely related, and electrical fast transient burst is
Common a kind of interference signal in electrical network, results from the transient state harassing and wrecking during actions such as cut-out inductive load, relay contact spring,
Affect the accuracy of measuring, operational reliability or the service life of electric energy meter.Therefore, it is necessary to the electricity carrying out intelligent electric energy meter is fast
Fast transient pulse train influence amount experiment, improves the capacity of resisting disturbance of electric energy meter.
At present, it is not directed to the special electrical fast transient (eft) experimental facilitiess of intelligent electric energy meter, be all using electrically electricity
Carrying out experiment, there is following limitation in this experimental facilitiess and method with the common apparatus of sub- installation electromagnetical compatibility：1st, real
Test complex operation, inefficiency；2nd, experimental result is manually determined with deviation it is impossible to realize real-time judge when interference signal applies
The error knots modification of test item；3rd, there is impact to the power source of experimental facilitiess and standard scale in interference signal, and experiment accuracy is not
High；4th, the requirement that standard GB/T/T 17215.211-2006 tests cannot be met to electrical fast transient (eft) " in test
In, function or performance have of short duration reduction or lose to allow, but the limit that the accuracy of an instrument should specify in respective standard
Interior ".
The standard GB/T of electric energy meter/T 17215.321-2008 regulation：The electrical fast transient (eft) impact of electric energy meter
Amount requirement of experiment, when current value is 1 for fundamental current Ib or rated current In, power factor, the error in dipping of 1 grade of electric energy meter
Knots modification is less than 4%, and the error in dipping knots modification of 2 grades of electric energy meters is less than 6%.Therefore need utility model one kind badly for intelligence
The electrical fast transient (eft) influence amount experimental provision of electric energy meter and method, improve the accuracy and efficiency of experiment.
Content of the invention
The purpose of this utility model is, in order to overcome the limitation of existing electric energy meter Clusters experimental facilitiess,
A kind of electrical fast transient (eft) influence amount experimental provision of intelligent electric energy meter is provided.
Realize that the technical solution of the utility model is as follows, a kind of electrical fast transient (eft) influence amount of intelligent electric energy meter is real
Experiment device, including：EFT signal generator, program control three-phase voltage source, program control three-phase current source, EFT coupling/isolator, coupling
Conjunction/decoupling network, tested electric energy meter, test of kilo watthour meter platform and electrical energy pulse line filter.The outfan of program control three-phase voltage source
Access tested electric energy meter through EFT coupling/isolator；Another outfan of program control three-phase voltage source accesses test of kilo watthour meter platform；
The outfan in program control three-phase current source is coupled/decoupling network is connected with tested electric energy meter, program control three-phase current source another defeated
Go out and terminate into test of kilo watthour meter platform；The impulse line of test of kilo watthour meter platform passes through electrical energy pulse line filter and tested electric energy meter phase
Even；The output of EFT signal generator accesses EFT coupling/isolator.
Described EFT signal generator is electrical fast transient (eft) signal generator, and the electricity for producing impact experiment is fast
Fast ringing pulse group congruences（EFT signal）.
Described program control three-phase voltage source, for providing working reference voltage to tested electric energy meter, carries to test of kilo watthour meter platform
Power supply potential source.
Described program control three-phase current source, for the fundamental current Ib required to the output of tested electric energy meter and rated current In,
There is provided current source to test of kilo watthour meter platform.
Described EFT coupling/isolator, the electrical fast transient (eft) signal for producing EFT signal generator passes
On the defeated voltage circuit to tested electric energy meter, prevent interference signal from feeding back in program control three-phase voltage source by pressure-wire simultaneously,
Experiment is affected greatly.
Described coupling/decoupling network, for provide between program control three-phase current source and tested electric energy meter one clean
Current circuit passage, reduce the impact to program control three-phase current source and test of kilo watthour meter platform for the interference signal to greatest extent it is ensured that
The accuracy of experimental result judgement, effectiveness.
Described tested electric energy meter is various difference voltages, single three-phase intelligent electric-energy meter of current specification, tested electricity during experiment
Can be placed on the insulating supporting of 0.1m above ground reference plane with corresponding experimental line.
Described test of kilo watthour meter platform, with electrical energy pulse line connect tested electric energy meter, by control program control three-phase voltage source and
Program control three-phase current source provides corresponding power factor to tested electric energy meter, for the mistake of electric energy meter tested during experiment with computing
Difference change value.
Described electrical energy pulse line filter, for filtering the high-frequency interferencing signal on electrical energy pulse circuit it is ensured that calibrating misses
The accuracy of difference.
A kind of electrical fast transient (eft) influence amount experimental provision of intelligent electric energy meter is used for carrying out the electricity of intelligent electric energy meter
Clusters influence amount experimental technique, comprises the following steps that：
（1）According to this utility model experimental provision, checking experiment equipment connection, tested electric energy meter in connection, and reality
Test circuit to be placed on together on the insulating supporting of 0.1m above ground reference plane；
（2）Control test of kilo watthour meter platform, by reference voltage from program control three-phase voltage source to tested electric energy meter offer work,
By the required fundamental current Ib of program control three-phase current source output and rated current In, setting power factor is 1 simultaneously, electric energy meter
Check-out console calculates the error amount of tested electric energy meter；
（3）According to the requirement of standard GB/T/T 17215.211-2006 and GB/T17626.4-2008, EFT letter is set
Number generator parameter, exports corresponding interference signal by EFT coupling/isolator to tested electric energy meter, simultaneously electric energy meter inspection
Test platform calculating error in dipping knots modification now, automatic decision is whether in the range of standard regulation；
（4）Close the output of EFT signal generator, whether just test of kilo watthour meter platform detects the various functions of tested electric energy meter
Often, finally judge whether the electrical fast transient (eft) influence amount experiment of tested electric energy meter is qualified.
The beneficial effects of the utility model are, experimental provision of the present utility model, efficiently solve voltage in experiment
Source and current source output are unstable and the problems such as tested electric energy meter calibration error easily produces deviation；Decrease to greatest extent
The impact to experimental facilitiess for the interference signal is it is ensured that the reliability service of this utility model experimental provision；Device fully meets country's mark
The experimental configuration of quasi- GB/T 17215.211-2006 and GB/T17626.4-2008 requires it is ensured that the accuracy of experimental result
And effectiveness.Experimental technique of the present utility model, be capable of tested electric energy meter power up Clusters signal do
When disturbing, whether real-time calculation error knots modification automatic decision are in the range of standard regulation；Tested electric energy meter only needs once simultaneously
Wiring, experimental implementation process is simple, quick；Line need not again be disconnected after test, automatically check the various functions of tested electric energy meter
Whether normal, accurately quick experimental results.
Brief description
Fig. 1 is this utility model experimental provision structured flowchart.
Specific embodiment
Comparison accompanying drawing is described in detail to this utility model with reference to embodiments.
As shown in figure 1, a kind of electrical fast transient (eft) influence amount experimental provision of intelligent electric energy meter of the present embodiment includes：
EFT signal generator, program control three-phase voltage source, program control three-phase current source, EFT coupling/isolator, coupling/decoupling network, quilt
Survey electric energy meter, test of kilo watthour meter platform and electrical energy pulse line filter.The outfan of program control three-phase voltage source couples/decoupling through EFT
Device accesses tested electric energy meter, and another outfan of program control three-phase voltage source accesses test of kilo watthour meter platform；Program control three-phase current source
Outfan coupled/decoupling network is connected with tested electric energy meter, another outfan accesses test of kilo watthour meter platform；Test of kilo watthour meter
The impulse line of platform is connected with tested electric energy meter by electrical energy pulse line filter；The output of EFT signal generator accesses EFT coupling
Conjunction/isolator.
Carry out the electrical fast transient (eft) shadow of intelligent electric energy meter using the experimental provision that this utility model embodiment provides
Ring amount experiment when, should according in standard GB/T/T 17215.211-2006 and GB/T17626.4-2008 to experiment condition
Relevant regulations are carried out.
Tested electric energy and corresponding experimental line should be placed on the insulating supporting of 0.1m above ground reference plane；Other
Circuit should be tried one's best away from tested circuit, reduces the coupling between circuit to greatest extent；Not little not less than 1m × 1m, thickness using plane
Metallic plate in 0.25mm（Copper or aluminum）As the ground reference plane of experiment, and ensure that it is reliably connected with protective grounding.Remove
Tested electric energy off-balancesheet, whole experimental provision is put in ground reference plane.
First it is not turned on the output of EFT signal generator, in experiment, program control three-phase voltage source passes through EFT coupling to tested electric energy meter
Conjunction/isolator exports the working reference voltage of tested electric energy meter（Specifications and models setting electricity accordingly according to tested electric energy meter
Pressure value）, provide voltage source to test of kilo watthour meter platform simultaneously；Coupling/decoupling network is passed through to tested electric energy in program control three-phase current source
The required fundamental current Ib of table output or rated current In（Specifications and models according to tested electric energy meter are arranging corresponding electric current
Value）, provide current source to test of kilo watthour meter platform simultaneously；Test of kilo watthour meter platform, connects tested electric energy meter with electrical energy pulse line, passes through
Control program control three-phase voltage source and program control three-phase current source to provide corresponding power factor to tested electric energy meter, calculate tested electricity
The error amount of energy table.
Open the output of EFT signal generator, EFT signal generator parameter is set, EFT coupling/isolator is by EFT signal
The electrical fast transient (eft) signal transmission that generator produces, on the voltage circuit of tested electric energy meter, prevents interference signal simultaneously
Fed back in program control three-phase voltage source by pressure-wire；Coupling/decoupling network, for program control three-phase current source and tested electric energy
One clean current circuit passage is provided between table, reduces interference signal to greatest extent to program control three-phase current source and electric energy
The impact of table check-out console；Electrical energy pulse line filter is used for the high-frequency interferencing signal filtering on electrical energy pulse circuit it is ensured that testing
The accuracy of result judgement, effectiveness；Test of kilo watthour meter platform calculates the error knots modification of now tested electric energy meter.
Intelligent electric energy meter carried out by a kind of electrical fast transient (eft) influence amount experimental provision of intelligent electric energy meter of the present embodiment
Electrical fast transient (eft) influence amount experimental technique, comprise the following steps that：
（1）According to this utility model embodiment experimental provision, checking experiment equipment connection, tested electric energy in connection
Table, is placed on the insulating supporting of 0.1m above ground reference plane together with experimental line；
（2）Control test of kilo watthour meter platform, by reference voltage from program control three-phase voltage source to tested electric energy meter offer work,
By the required fundamental current Ib of program control three-phase current source output and rated current In, setting power factor is 1 simultaneously, electric energy meter
Check-out console calculates the error amount of tested electric energy meter；
（3）According to the requirement of standard GB/T/T 17215.211-2006 and GB/T17626.4-2008, EFT letter is set
Number generator parameter, exports corresponding interference signal by EFT coupling/isolator to tested electric energy meter, simultaneously electric energy meter inspection
Test platform calculating error in dipping knots modification now, automatic decision is whether in the range of standard regulation；
（4）Close the output of EFT signal generator, whether just test of kilo watthour meter platform detects the various functions of tested electric energy meter
Often, finally judge whether the electrical fast transient (eft) influence amount experiment of tested electric energy meter is qualified.
The experimental provision of this utility model embodiment, efficiently solves voltage source and current source output in experiment unstable
And tested electric energy meter calibration error is the problems such as easily produce deviation, decrease interference signal to greatest extent to experimental facilitiess
Impact is it is ensured that the reliability service of this utility model experimental provision；Device fully meets standard GB/T/T 17215.211-2006
Require it is ensured that the accuracy of experimental result and effectiveness with the experimental configuration of GB/T17626.4-2008；This utility model is real
Apply the experimental technique of example, be capable of, when tested electric energy meter powers up the interference of Clusters signal, calculating in real time by mistake
Differ from knots modification and whether automatic decision is in the range of standard regulation；Tested electric energy meter only needs primary connection, experimental implementation mistake simultaneously
Journey is simple, quick；Line need not again be disconnected after test, automatically check the various functions of tested electric energy meter whether normal, accurately soon
Fast experimental results.
Claims (5)
1. a kind of electrical fast transient (eft) influence amount experimental provision of intelligent electric energy meter is it is characterised in that described device includes
EFT signal generator, program control three-phase voltage source, program control three-phase current source, EFT coupling/isolator, coupling/decoupling network, quilt
Survey electric energy meter, test of kilo watthour meter platform and electrical energy pulse line filter；The outfan of program control three-phase voltage source couples/decoupling through EFT
Device accesses tested electric energy meter；Another outfan of program control three-phase voltage source accesses test of kilo watthour meter platform；Program control three-phase current source
Outfan coupled/decoupling network is connected with tested electric energy meter, another outfan in program control three-phase current source accesses electric energy meter
Check-out console；The impulse line of test of kilo watthour meter platform is connected with tested electric energy meter by electrical energy pulse line filter；EFT signal generator
Output access EFT coupling/isolator.
2. the electrical fast transient (eft) influence amount experimental provision of a kind of intelligent electric energy meter according to claim 1, its feature
It is, described EFT signal generator is electrical fast transient (eft) signal generator, the quick wink of the electricity for producing impact experiment
Become pulse-burst signals.
3. the electrical fast transient (eft) influence amount experimental provision of a kind of intelligent electric energy meter according to claim 1, its feature
It is, described program control three-phase voltage source, for providing working reference voltage to tested electric energy meter, provide electricity to test of kilo watthour meter platform
Potential source；
Described program control three-phase current source, for the fundamental current Ib required to the output of tested electric energy meter and rated current In, to electricity
Current source can be provided by table check-out console.
4. the electrical fast transient (eft) influence amount experimental provision of a kind of intelligent electric energy meter according to claim 1, its feature
It is, described EFT coupling/isolator, the electrical fast transient (eft) signal transmission for producing EFT signal generator arrives
On the voltage circuit of tested electric energy meter, prevent interference signal from feeding back in program control three-phase voltage source by pressure-wire simultaneously.
5. the electrical fast transient (eft) influence amount experimental provision of a kind of intelligent electric energy meter according to claim 1, its feature
It is, described test of kilo watthour meter platform, connects tested electric energy meter with electrical energy pulse line, by controlling program control three-phase voltage source and program control
Three-phase current source provides corresponding power factor to tested electric energy meter, and the error for electric energy meter tested during experiment with computing changes
Variate.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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