CN104614698B - Electric power meter field-checking loads device with three-phase simulation - Google Patents
Electric power meter field-checking loads device with three-phase simulation Download PDFInfo
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- CN104614698B CN104614698B CN201510055022.2A CN201510055022A CN104614698B CN 104614698 B CN104614698 B CN 104614698B CN 201510055022 A CN201510055022 A CN 201510055022A CN 104614698 B CN104614698 B CN 104614698B
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- 238000004088 simulation Methods 0.000 title claims abstract description 105
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Abstract
Device, including three-phase simulation load are loaded with three-phase simulation the invention discloses a kind of electric power meter field-checking, the three-phase simulation load is three groups of inductance coils, and every group of inductance coil is wrapped on the cylindrical plunger of one；And the electric power meter of the electric energy size for detecting three-phase simulation load；And for connecting the connecting line between three-phase simulation load and electric power meter；And for switching the switch of three-phase simulation load, it is serially connected between three-phase simulation load and three phase mains；And the indicator lamp to instruction simulation load.This invention ensures that substation line bringing onto load operation after metering device safe and accurate and reliability service；Compact of the present invention, it is easy to carry, it is practical flexible.
Description
Technical field
The invention belongs to Electric Energy Metering Technology field, and in particular to a kind of electric power meter field-checking three-phase simulation
Load device.
Background technology
In practical application, generally use electric power meter on-site calibrator carries out the wiring inspection of electric energy metering secondary
Look into, electric energy metering secondary wiring check and judgement need to can be carried out in the case where electric energy meter carries load, therefore power transmission
The same day can not complete it is powered in the case of wiring check, need to wait until circuit carry load after, do wiring check to scene again.If
Fail in time by wiring check find mistake, there is security incident or economic accident, caused by consequence will be hardly imaginable.To be true
Protect power network safe operation and metering accurately and reliably, before entering row line on-load connection box of electric energy meter inspection be very important.
It can be seen from the measuring principle of electric energy meter field check meter, no matter three-phase three-wire electric energy meter or three-phase and four-line electric energy
Table, to carry out connection box of electric energy meter inspection using electric power meter on-site calibrator, the circuit that electric energy meter is measured must band
There is certain load, it is contemplated that the no-load running situation after newly-built transformer station's power transmission, only with electric power meter field-checking
Instrument can not complete zero load circuit electric energy meter wiring check.
The content of the invention
In order to solve the above problems, the present invention provides a kind of electric power meter field-checking and loads device with three-phase simulation.
To achieve the above object, the present invention uses following technical scheme：
A kind of electric power meter field-checking loads device, including three-phase simulation load, the three-phase mould with three-phase simulation
It is three groups of inductance coils to intend load, and every group of inductance coil is wrapped on the cylindrical plunger of one；And born for detecting three-phase simulation
The electric power meter of the electric energy size of load；And for connecting the connecting line between three-phase simulation load and electric power meter；
And for switching the switch of three-phase simulation load, it is serially connected between three-phase simulation load and three phase mains；And to indicate mould
Intend the indicator lamp of load.
It is described to be used to connect the connecting line between three-phase simulation load and electric power meter, including three-phase simulation load electricity
Lead-out wire and the voltage connecting wire of three-phase simulation load are flowed, the voltage connecting wire of the three-phase simulation load is connected to electric energy metrical
The voltage port of device, the three-phase simulation load current lead-out wire are connected to the electric current port of electric power meter.
The electric power meter is three-phase three-wire electric energy meter.
The indicator lamp is serially connected in three-phase simulation load current and drawn between port and the electric current port of electric power meter
Three-phase simulation load current lead-out wire on.
If described three-phase simulation load current lead-out wire is the carried interest copper conductor being wrapped on inductance coil.
The cylindrical plunger is hollow cylinder iron core.
A kind of electric power meter field-checking loads device, including three-phase simulation load, the three-phase mould with three-phase simulation
It is three groups of inductance coils to intend load, and every group of inductance coil is wrapped on the cylindrical plunger of one；And born for detecting three-phase simulation
The electric power meter of the electric energy size of load；And for connecting the connecting line between three-phase simulation load and electric power meter；
And for switching the switch of three-phase simulation load, it is serially connected between three-phase simulation load and three phase mains；And to indicate mould
Intend the indicator lamp of load；The electric power meter is three-phase and four-line electric energy meter.
It is described to be used to connect the connecting line between three-phase simulation load and electric power meter, including three-phase simulation load electricity
Flow the zero line lead-out wire of lead-out wire, the voltage connecting wire of three-phase simulation load and three-phase simulation load；The three-phase simulation load
Voltage connecting wire be connected to the voltage port of electric power meter, the three-phase simulation load current lead-out wire is connected to electric energy
The electric current port of metering device, the zero line lead-out wire of three-phase simulation load are connected to the zero line port of electric power meter.
The indicator lamp is serially connected in three-phase simulation load current and drawn between port and the electric current port of electric power meter
Three-phase simulation load current lead-out wire on.
If described three-phase simulation load current lead-out wire is the carried interest copper conductor being wrapped on inductance coil.
Beneficial effects of the present invention are：
Electric power meter field-checking proposed by the present invention loads device with three-phase simulation, is filled in the electric energy metrical of transformer station
Threephase load is simulated in addition in the case of putting no load, coordinates practicality with existing electric energy meter on-site calibrator, to electric energy meter
Measure device and carry out wiring check；Ensure that substation line bringing onto load operation after metering device safe and accurate, reliability service；
Compact of the present invention, it is easy to carry, it is practical flexible.
Brief description of the drawings
Fig. 1 is the electrical schematic diagram of the present invention；
Fig. 2 is the phase three-wire three fictitious load device wiring diagram of the present invention；
Fig. 3 is the three-phase and four-line fictitious load device wiring diagram of the present invention.
Embodiment
The present invention will be further described with embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of electric power meter field-checking loads device, including three-phase simulation load with three-phase simulation,
The three-phase simulation load is three groups of inductance coils L1, L2 and L3, and every group of inductance coil is wrapped in the hollow cylinder iron core of one
On；And the electric power meter of the electric energy size for detecting three-phase simulation load；And for connecting three-phase simulation load and electricity
Connecting line between energy metering device；And for switching switch K1, K2 and K3 of three-phase simulation load, it is serially connected with three-phase respectively
Between fictitious load and three phase mains；And indicator lamp HL1, HL2 and HL3 to instruction simulation load；The electric energy meter
Amount device is electric energy meter.
Every group of described inductance coil size is 0.154H；Set according to required fictitious load size and carry out loading switching
Switch K1, K2, K3；The voltage connecting wire of described fictitious load is that the sub-thread copper being connected with electric energy meter tail voltage port is led
Line, described three-phase current lead-out wire are the multiply copper conductor being wrapped on inductance coil；Described indicator lamp HL1, HL2, HL3
For three be correspondingly arranged with threephase load, indicator lamp HL1 series connection A phase current lead-out wires, indicator lamp HL2 series connection B phase currents draw
Outlet, indicator lamp HL3 series connection C phase current lead-out wires, to indicate the size of switching load.
Fig. 2 show the phase three-wire three fictitious load device wiring diagram of invention.The A phase currents lead of three-phase simulation load device connects
Connect electric energy meter A phase currents port；The C phase currents lead connection electric energy meter C phase currents port of three-phase simulation load device；Three-phase simulation
Load the A phase voltages lead connection electric energy meter A phase voltages port of device；The C phase voltages lead connection electric energy of three-phase simulation load device
Table C phase voltages port；The N phase voltages lead connection electric energy meter B phase voltages port of three-phase simulation load device.
Fig. 3 show the three-phase and four-line fictitious load device wiring diagram of invention.The A phase currents lead of three-phase simulation load device connects
Connect electric energy meter A phase currents port；The B phase currents lead connection electric energy meter B phase currents port of three-phase simulation load device；Three-phase simulation
Load the C phase currents lead connection electric energy meter C phase currents port of device；The A phase voltages lead connection electric energy of three-phase simulation load device
Table A phase voltage port；The B phase voltages lead connection electric energy meter B phase voltages port of three-phase simulation load device；Three-phase simulation loads device
C phase voltages lead connection electric energy meter C phase voltages port；The N phase terminals connection electric energy meter N phases port of three-phase simulation load device.
The N phases of the three-phase simulation load device load the zero line of device for three-phase simulation.
Three-phase three-wire electric energy meter phase voltage is 57.7V, and three-phase and four-line electric energy meter phase voltage is 220V, to ensure three-phase simulation
The sensitivity and security of device verification are loaded, the rated voltage of fictitious load device is 300V, bearing power 3kW.
The electric power meter field-checking of the present invention is as follows using step with three-phase simulation load device：
(1) according to connection box of electric energy meter mode, the mode of connection of three-phase simulation load device is determined, three-phase simulation is loaded into device
Voltage port is consecutively connected to electric energy meter voltage port and electric current port with electric current port；Selecting switch K1, K2 and K3 are got to
Divide position；
(2) threephase load is connected by work with K3 according to practical operation situation, selecting switch K1, K2, selecting switch shares
Three class：Zero load, semi-load, full load, and check whether indicator lamp work is normal, beginning field-checking work after confirming normally
Make；
(3) after field-checking terminates, electric energy meter control source should be first disconnected, whether checks three-phase simulation load device indicator lamp
Extinguish, after lamp to be instructed extinguishes, can off voltage electric current connecting line, power cut-off.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (6)
1. a kind of electric power meter field-checking loads device with three-phase simulation, it is characterised in that is loaded including three-phase simulation, institute
It is three groups of inductance coils to state three-phase simulation load, and every group of inductance coil is wrapped on a cylindrical plunger；And
For the electric power meter for the electric energy size for detecting three-phase simulation load；And
For connecting the connecting line between three-phase simulation load and electric power meter；And
For switching the switch of three-phase simulation load, it is serially connected between three-phase simulation load and three phase mains；And
To indicate the indicator lamp of three-phase simulation load；
It is described to be used to connect the connecting line between three-phase simulation load and electric power meter, including three-phase simulation load current draws
Outlet and the voltage connecting wire of three-phase simulation load, the voltage connecting wire of the three-phase simulation load are connected to electric power meter
Voltage port, the three-phase simulation load current lead-out wire is connected to the electric current port of electric power meter；
The indicator lamp is serially connected in three between three-phase simulation load current extraction port and the electric current port of electric power meter
On phase fictitious load electric current lead-out wire.
2. a kind of electric power meter field-checking as claimed in claim 1 loads device with three-phase simulation, it is characterised in that institute
It is three-phase three-wire electric energy meter to state electric power meter.
3. a kind of electric power meter field-checking as claimed in claim 1 loads device with three-phase simulation, it is characterised in that institute
If the three-phase simulation load current lead-out wire stated is the carried interest copper conductor being wrapped on inductance coil.
4. a kind of electric power meter field-checking as claimed in claim 1 loads device with three-phase simulation, it is characterised in that institute
It is hollow cylinder iron core to state cylindrical plunger.
5. a kind of electric power meter field-checking loads device with three-phase simulation, it is characterised in that is loaded including three-phase simulation, institute
It is three groups of inductance coils to state three-phase simulation load, and every group of inductance coil is wrapped on a cylindrical plunger；And
For the electric power meter for the electric energy size for detecting three-phase simulation load；And
For connecting the connecting line between three-phase simulation load and electric power meter；And
For switching the switch of three-phase simulation load, it is serially connected between three-phase simulation load and three phase mains；And
To indicate the indicator lamp of three-phase simulation load；The electric power meter is three-phase and four-line electric energy meter；
It is described to be used to connect the connecting line between three-phase simulation load and electric power meter, including three-phase simulation load current draws
The zero line lead-out wire of outlet, the voltage connecting wire of three-phase simulation load and three-phase simulation load；The electricity of the three-phase simulation load
Pressure connecting line is connected to the voltage port of electric power meter, and the three-phase simulation load current lead-out wire is connected to electric energy metrical
The electric current port of device, the zero line lead-out wire of three-phase simulation load are connected to the zero line port of electric power meter；
The indicator lamp is serially connected in three between three-phase simulation load current extraction port and the electric current port of electric power meter
On phase fictitious load electric current lead-out wire.
6. a kind of electric power meter field-checking as claimed in claim 5 loads device with three-phase simulation, it is characterised in that institute
If the three-phase simulation load current lead-out wire stated is the carried interest copper conductor being wrapped on inductance coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055022.2A CN104614698B (en) | 2015-02-03 | 2015-02-03 | Electric power meter field-checking loads device with three-phase simulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055022.2A CN104614698B (en) | 2015-02-03 | 2015-02-03 | Electric power meter field-checking loads device with three-phase simulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104614698A CN104614698A (en) | 2015-05-13 |
| CN104614698B true CN104614698B (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510055022.2A Active CN104614698B (en) | 2015-02-03 | 2015-02-03 | Electric power meter field-checking loads device with three-phase simulation |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108196216A (en) * | 2016-11-20 | 2018-06-22 | 国网江西省电力公司赣东北供电分公司 | A kind of electric energy meter verifies three-phase voltage attachment device |
| CN113466777B (en) * | 2021-06-06 | 2022-11-11 | 国网河北省电力有限公司辛集市供电分公司 | Intelligent electric energy meter error rapid determination device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202649459U (en) * | 2012-05-28 | 2013-01-02 | 新安县电业公司 | Temporary load device for electric energy metering device field calibration |
| EP2555425A2 (en) * | 2011-08-04 | 2013-02-06 | Tektronix, Inc. | Means of providing variable reactive load capability on an electronic load |
| CN103777172A (en) * | 2013-12-27 | 2014-05-07 | 珠海中慧微电子有限公司 | Reliability testing system of intelligent electric meter and method thereof |
| CN204374405U (en) * | 2015-02-03 | 2015-06-03 | 国家电网公司 | Electric power meter field-checking three-phase simulation load device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120101760A1 (en) * | 2010-10-26 | 2012-04-26 | Praveen Sutrave | Method of Enabling Calibration of a Current Transformer, and Associated Apparatus |
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- 2015-02-03 CN CN201510055022.2A patent/CN104614698B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2555425A2 (en) * | 2011-08-04 | 2013-02-06 | Tektronix, Inc. | Means of providing variable reactive load capability on an electronic load |
| CN202649459U (en) * | 2012-05-28 | 2013-01-02 | 新安县电业公司 | Temporary load device for electric energy metering device field calibration |
| CN103777172A (en) * | 2013-12-27 | 2014-05-07 | 珠海中慧微电子有限公司 | Reliability testing system of intelligent electric meter and method thereof |
| CN204374405U (en) * | 2015-02-03 | 2015-06-03 | 国家电网公司 | Electric power meter field-checking three-phase simulation load device |
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| CN104614698A (en) | 2015-05-13 |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Weisheng Inventor after: Sun Hailong Inventor after: Li Yaorong Inventor after: Huang Wenbo Inventor after: Zhang Ti Inventor after: Li Dapeng Inventor after: Zhang Shangang Inventor after: Ma Qian Inventor after: Han Xiaodong Inventor after: Wang Xiantai Inventor after: Xu Guangyu Inventor before: Huang Wenbo Inventor before: Li Yaorong Inventor before: Zhang Ti Inventor before: Li Dapeng Inventor before: Zhang Shangang Inventor before: Ma Qian Inventor before: Han Xiaodong Inventor before: Wang Xiantai Inventor before: Xu Guangyu Inventor before: Sun Hailong |
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