CN106501761A - Three-phase intelligent electric-energy meter simulation detection system - Google Patents
Three-phase intelligent electric-energy meter simulation detection system Download PDFInfo
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- CN106501761A CN106501761A CN201611216293.2A CN201611216293A CN106501761A CN 106501761 A CN106501761 A CN 106501761A CN 201611216293 A CN201611216293 A CN 201611216293A CN 106501761 A CN106501761 A CN 106501761A
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- energy meter
- concentrator
- current
- electric
- terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of three-phase intelligent electric-energy meter simulation detection system, including power source, the concentrator for also including electric energy meter and being connected with electric energy meter；The power source is that concentrator and electric energy meter are powered with current system by switch unit, current transformer and the switching switch for switching switch unit between direct powering mode and indirect powering mode is provided with the switch unit, the direct powering mode refers to that the electric current of power source output directly feeds concentrator, and the indirect pattern refers to that the electric current of power source output resupplies concentrator after being changed by current transformer.The present invention is concentrator and electric energy meter unification power supply using a set of power source, and meets the use requirement of the electric energy meter of different current specifications.
Description
Technical field
The present invention relates to a kind of electric energy meter simulation detection system.
Background technology
Intelligent electric energy meter is for electric energy trade settlement between genco and electric company, electric company and Electricity customers
Important measurement instrument.For verifying error testing and the copy reading data of three-phase intelligent electric-energy meter, need to build simulation detection system, lead to
Cross concentrator copy reading three-phase intelligent electric-energy meter, complete correlated performance detection.
In three-phase intelligent electric-energy meter simulation detection system of the prior art, due to required when concentrator and electric energy meter work
The size of current that wants is different, it is therefore desirable to be respectively concentrator using two sets of power sources and electric energy meter is powered, wiring relation is complicated,
High cost.On the other hand the current specification of electric energy meter to be detected differs, it is difficult to using same power source to concentrator and electric energy
Table is powered simultaneously.
Content of the invention
The invention provides three-phase intelligent electric-energy meter simulation detection system, its problem to be solved is：（1）Using a set of
Power source is that concentrator and electric energy meter are together powered；（2）Meet the use requirement of the electric energy meter of different supply current specifications.
Technical scheme is as follows：
Three-phase intelligent electric-energy meter simulation detection system, including power source, the collection for also including electric energy meter and being connected with electric energy meter
Middle device；
The power source is that concentrator and electric energy meter are powered with current system by switch unit, is provided with electricity in the switch unit
Current transformer and the switching switch for switching switch unit between direct powering mode and indirect powering mode are described straight
Connect powering mode and refer to that the electric current of power source output directly feeds concentrator, the indirect pattern refers to the electric current of power source output
Concentrator is resupplied by current transformer after being changed.
As a further improvement on the present invention：The switch unit have for the electric current end of incoming cables that connects with power source and
Current outlet end, and also including the first outfan and the second outfan for powering for electric energy meter and be used for being concentrator
3rd outfan and the 4th outfan of power supply；
There are the current transformer primary side the first terminals and the second terminals, secondary side there are the 3rd terminals and the 4th
Terminals；
The switching switch includes the first switching switch and the second switching switch, the common port and electric current of the first switching switch
Leading-out terminal is connected, normal-closed end is connected with the first terminals, normally opened end is connected with the 3rd terminals, and second switching is opened
The common port of pass is connected with the 3rd outfan, normal-closed end is connected with the 4th terminals, normally opened end is connected with the second terminals
Connect；
3rd terminals are connected with the 4th outfan, and the electric current end of incoming cables is connected with the first outfan, and described
Two terminals are connected with the second outfan.
As a further improvement on the present invention：Also include control device, the control device and first switching switch and
Second switching switch is respectively connected with to control the first switching switch with the second switching switch synchronization action.
As a further improvement on the present invention：Also include control device, the concentrator is connected with control device.
As a further improvement on the present invention：Also include control device, the power source is connected with control device.
As a further improvement on the present invention：The concentrator is connected with electric energy meter by harvester.
Relative to prior art, the present invention has following good effect：The present invention is provided to power source by switch unit
Electric current be converted, there is provided directly or indirectly two kinds of powering modes：Directly under powering mode, power source is in control device
Control under directly together supply small current for concentrator and electric energy meter；Indirectly under powering mode, power source is directly supplied for electric energy meter
High current, while power for concentrator after current transformer converts electrical current into small current, so as to ensure that concentrator is needed
Normal power supply when wanting small current, electric energy meter to need high current.It is electric energy meter and concentration that the present invention can use a set of power source
Device is together powered, and meets the use requirement of the electric energy meter of different current specifications.
Description of the drawings
Structural representations of the Fig. 1 for switch unit.
Specific embodiment
Technical scheme is described in detail below in conjunction with the accompanying drawings：
Three-phase intelligent electric-energy meter simulation detection system, including power source and control device, also includes electric energy meter and and electric energy meter
The concentrator being connected.The concentrator is connected with electric energy meter by harvester, adopts carrier wave between concentrator and harvester
Mode communicates connection, communicates connection using RS485 modes between harvester and electric energy meter, and the electric energy meter is three-phase intelligent electric energy
Table.
The concentrator is also connected with control device respectively with power source, and the control device includes industrial computer and upper
Machine.
The power source is that concentrator and electric energy meter are powered with current system by switch unit, sets in the switch unit
There are current transformer and the switching switch for switching switch unit between direct powering mode and indirect powering mode, institute
State direct powering mode and refer to that the electric current of power source output directly feeds concentrator, the indirect pattern refers to power source output
Electric current resupplies concentrator after being changed by current transformer.
Further：There is the electric current end of incoming cables 1 for being connected with power source and electric current to go out for such as Fig. 1, the switch unit
Line end 2, and also including the first outfan 5 and the second outfan 8 for powering for electric energy meter and be used for supplying for concentrator
3rd outfan 9 and the 4th outfan 10 of electricity；
There are the current transformer primary side the first terminals 3 and the second terminals 4, secondary side there is 6 He of the 3rd terminals
4th terminals 7；
The switching switch includes the first switching switch 12 and the second switching switch 11, the common port of the first switching switch 12
It is connected with current outlet end 2, normal-closed end is connected with the first terminals 3, normally opened end is connected with the 3rd terminals 6, described
Second switching switch 11 common port be connected with the 3rd outfan 9, normal-closed end is connected with the 4th terminals 7, normally opened end and
Second terminals 4 are connected；
3rd terminals 6 are connected with the 4th outfan 10, and the electric current end of incoming cables 1 is connected with the first outfan 5, institute
State the second terminals 4 to be connected with the second outfan 8.
The control device is respectively connected with and is cut with controlling first with the first switching switch 12 and the second switching switch 11
Change switch 12 and the second switching 11 synchronization actions of switch.
The first switching switch 12 and the second switching switch 11 can be realized by relay.
The exportable three-phase current of power source is that concentrator and electric energy meter are powered, and each phase current each switches by one respectively
Unit is connected with the phase current input terminal on concentrator and electric energy meter.
The workflow of this detecting system is：
After the completion of wiring, testing staff determines the operating current specifications of concentrator and this electric energy meter to be detected first.If
Concentrator needs using small current and electric energy meter needs high current, then keep default setting to use indirect powering mode：Power source
The electric current of output pass sequentially through electric current end of incoming cables 1, the first outfan 5, the electric energy meter of some series connection, current transformer primary side with
And current outlet end 2 forms loop and supplies high current for electric energy meter, meanwhile, current transformer changes the small current to be formed in secondary side
Export, pass through the 4th terminals 7, the 3rd outfan 9, the concentrator of some series connection, the 4th outfan 10 and 6 shape of the 3rd terminals
Small current is supplied into loop for concentrator.If the current specification that concentrator is needed with electric energy meter is identical, control device control the
One switching switch 12 and the second switching switch 11 synchronization actions, are switched to direct powering mode, the electric current of now power source output
Pass sequentially through electric current end of incoming cables 1, the first outfan 5, the electric energy meter of some series connection, the second outfan 8, the 3rd outfan 9, some
The concentrator of series connection, the 4th outfan 10, the 3rd terminals 6 and current outlet end 2 form a total loop, by electric energy meter and collection
Middle device series connection, offer supply identical electric current.
Claims (6)
1. three-phase intelligent electric-energy meter simulation detection system, it is characterised in that：Including power source, also include electric energy meter and and electric energy
The concentrator that table is connected；
The power source is that concentrator and electric energy meter are powered with current system by switch unit, is provided with electricity in the switch unit
Current transformer and the switching switch for switching switch unit between direct powering mode and indirect powering mode are described straight
Connect powering mode and refer to that the electric current of power source output directly feeds concentrator, the indirect pattern refers to the electric current of power source output
Concentrator is resupplied by current transformer after being changed.
2. three-phase intelligent electric-energy meter simulation detection system as claimed in claim 1, it is characterised in that：The switch unit has
For the electric current end of incoming cables connected with power source（1）With current outlet end（2）, and also including for powering for electric energy meter
One outfan（5）With the second outfan（8）And the 3rd outfan for powering for concentrator（9）With the 4th outfan
（10）；
The current transformer primary side has the first terminals（3）With the second terminals（4）, secondary side is with the 3rd terminals
（6）With the 4th terminals（7）；
The switching switch includes the first switching switch（12）With the second switching switch（11）, the first switching switch（12）'s
Common port and current outlet end（2）Be connected, normal-closed end and the first terminals（3）Be connected, normally opened end and the 3rd terminals（6）
It is connected, the second switching switch（11）Common port and the 3rd outfan（9）Be connected, normal-closed end and the 4th terminals
（7）Be connected, normally opened end and the second terminals（4）It is connected；
3rd terminals（6）With the 4th outfan（10）It is connected, the electric current end of incoming cables（1）With the first outfan（5）
It is connected, second terminals（4）With the second outfan（8）It is connected.
3. three-phase intelligent electric-energy meter simulation detection system as claimed in claim 2, it is characterised in that：Also include control device,
The control device and the first switching switch（12）And second switching switch（11）It is respectively connected with and is opened with controlling the first switching
Close（12）With the second switching switch（11）Synchronization action.
4. three-phase intelligent electric-energy meter simulation detection system as claimed in claim 1, it is characterised in that：Also include control device,
The concentrator is connected with control device.
5. three-phase intelligent electric-energy meter simulation detection system as claimed in claim 1, it is characterised in that：Also include control device,
The power source is connected with control device.
6. the three-phase intelligent electric-energy meter simulation detection system as described in claim 1 to 5 is arbitrary, it is characterised in that：The concentration
Device is connected with electric energy meter by harvester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611216293.2A CN106501761B (en) | 2016-12-26 | 2016-12-26 | Three-phase intelligent ammeter simulation detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611216293.2A CN106501761B (en) | 2016-12-26 | 2016-12-26 | Three-phase intelligent ammeter simulation detection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106501761A true CN106501761A (en) | 2017-03-15 |
| CN106501761B CN106501761B (en) | 2023-07-21 |
Family
ID=58333958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611216293.2A Active CN106501761B (en) | 2016-12-26 | 2016-12-26 | Three-phase intelligent ammeter simulation detection system |
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| CN106501761B (en) | 2023-07-21 |
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Address after: 264003 Laishan City, Yantai province Venture Center, Shandong Applicant after: YANTAI DONGFANG WISDOM ELECTRIC Co.,Ltd. Address before: 264003 Laishan City, Yantai province Venture Center, Shandong Applicant before: YANTAI DONGFANG WISDOM ELECTRIC CO.,LTD. |
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