CN105259381B - Portable active electric energy metering device - Google Patents
Portable active electric energy metering device Download PDFInfo
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- CN105259381B CN105259381B CN201510714291.5A CN201510714291A CN105259381B CN 105259381 B CN105259381 B CN 105259381B CN 201510714291 A CN201510714291 A CN 201510714291A CN 105259381 B CN105259381 B CN 105259381B
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 55
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 238000004804 winding Methods 0.000 claims description 15
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 210000004556 brain Anatomy 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims 5
- 239000000203 mixture Substances 0.000 claims 1
- 230000037431 insertion Effects 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The present invention provides a portable active energy metering device which comprises an mA-level three-phase four-wire active digital electric energy meter, mA-level open-type current transformers, a voltage collection conductive wire formed by a 1.5 mm＜2＞ soft copper conductive wire, a current collection conductive wire formed by a 1 mm＜2＞ soft copper conductive wire, an insertion connection piece, a wire connection clamp and a microcomputer time control switch. The voltage collection conductive wire is divided into two parts by the insertion connection piece. One end of the voltage collection conductive wire is provided with the wire connection clamp. The microcomputer time control switch is connected to the L end and N end of the power supply of the three-phase four-wire active digital electric energy meter in series. The A, B and C wires of a rural power network carrier wire to be measured are sleeved by three open-type current transformers. The portable active energy metering device has the advantages of simple structure and convenient wire connection in use, the metering precision reaches 0.2 to 0.5 grade level of the requirement of a power supply department, the electrical energy metering reading at a time can be conveniently locked, and the requirement of a temporary electrical energy metering device by a rural network branch line is effectively satisfied.
Description
Technical field
The present invention relates to electric power meter technical field, and in particular to a kind of easy assembling type active energy metering device.
Background technology
At present, the application of 400V rural power grids is more universal in electrical network, because electricity consumption has the spies such as dispersiveness, seasonality in agricultural operation
Point, thus separated time road is numerous, has a very wide distribution, the electricity consumption cycle is shorter, thus is frequently necessary to install ammeter pair temporarily in electricity consumption
Electricity consumption is measured, using dismounting ammeter after finishing again.Ampere is usually to the device of rural power grids branched line temporary electricity utilization metering
Level straight-through current transformer adds three-phase and four-line active electric energy meter to carry out, and it needs the bus of dismounting that has a power failure, shadow when mounted
Ring user power utilization；Electrical energy meter electricity line ball must adopt 2.5 square millimeters of copper cash, secondary winding in current transformer line to adopt 4
Square millimeter copper cash, using bind or nut crimping martingale, connection box of electric energy meter is difficult, and workload is big, and dress surface condition is required
It is high；And the electric energy meter of interim installing can not enter the low pressure electricity consumption acquisition system of power supply department（The electric energy of addition system can be gathered
The daily zero point of table freezes registration）, thus zero point can not be read and freeze registration, it is unfavorable for power supply department to agricultural operation electricity consumption
Effective supervision.
The problem of electric energy meter is installed to overcome to have a power failure, the device of rural power grids branched line temporary electricity utilization metering is generally adopted at present
Replace straight-through current transformer with such as model K-30*20 ampere level open type current transformer, need not tear open during dress table
Bus and can hot line job, do not affect client's normal electricity consumption, fill table relatively convenient.But, open type on the market at present
Current transformer precision is not universal high, and precision is usually 1.0 grades（Below primary current 200A is 1% error）, it is difficult to reach power supply
0.2-0.5 level levels required by department's electric energy metrical；And it is yet suffered from, and wiring is cumbersome, can not read zero point freezes to show
The problems such as number.
The content of the invention
The purpose of the present invention is：For the problems of current rural power grids branched line temporary electricity electric power meter,
When a kind of simple structure being provided, being used easy-to-connect, measuring accuracy reach power supply department requirement 0.2-0.5 levels level and can
Easily lock the easy assembling type active energy metering device of a certain moment electric energy metrical registration.
The technical scheme is that：The easy assembling type active energy metering device of the present invention, including the three-phase four of milliampere level
The active digital electricity meter of line, voltage acquisition wire, open type current transformer and current acquisition wire, above-mentioned three-phase and four-line has
Work(digital electricity meter 1 has A, B, C, N totally 4 sampled voltage input terminals, L and N totally 2 power ends and IA+, IA-, IB
+, IB-, IC+, IC- totally 6 sample rate current input terminals；It is structurally characterized in that：Also include connector, binding clip and micro-
Computer time switch；
Above-mentioned voltage acquisition wire is 1.5 square millimeters of soft copper cash；Connector is working of plastics, connector
The male cooperated including plug type and female；4 voltage acquisition wires are fixedly installed in female；4 voltage acquisitions
The other end of wire is provided with connection-peg, respectively with A, B, C, N sampled voltage input wires of the active digital electricity meter of three-phase and four-line
End correspondence grafting electrical connection；4 voltage acquisition wires are fixedly installed in male；
Binding clip is the copper electricity folder for being provided with insulation sleeve, and wiring is folded with 4, and 4 binding clips fixation in male sets
The each welding 1 of termination difference of the 4 voltage acquisition wires put；
Microcomputer time-controlled switch has power input, power input T end, power output end and power supply output T ends；Micro- electricity
The power input of brain time switch is arbitrary with A, B, C sampled voltage input terminal of the active digital electricity meter of three-phase and four-line
Individual electrical connection；Power input T end electrically connects with the sampled voltage input terminal N of the active digital electricity meter of three-phase and four-line；Micro- electricity
The power supply L ends and N-terminal pair of the power output end of brain time switch and power supply output T ends with the active digital electricity meter of three-phase and four-line
Should electrically connect；
Above-mentioned open type current transformer includes secondary iron core, Secondary Winding, an iron core；Secondary Winding is equably twined
It is wound on secondary iron core；One time iron core is rolled by silicon steel sheet and rolled into, and an iron core is coated on rural power grids current-carrying electricity to be measured when using
First winding is constituted on line；Open type current transformer is provided with 3, on A, B, C line of rural power grids current carrying wire to be measured respectively
Each socket 1；Connect 2 current acquisition wires in the Secondary Winding of each open type current transformer respectively；Current acquisition is led
One end of line is provided with connection-peg；One end with connection-peg of 6 current acquisition wires corresponds to and the active number of three-phase and four-line respectively
IA+, IA-, IB+, IB-, IC+, IC- of word electric energy meter totally 6 sample rate current input terminal correspondence grafting electrical connections；Electric current is adopted
Collection wire is 1 square millimeter of soft copper conductor.
Further scheme is：Above-mentioned microcomputer time-controlled switch is the microcomputer time-controlled switch of KG316T models.
The present invention has positive effect：（1）The easy assembling type electric power meter of the present invention, it passes through to be opened using milliampere level
Mouthful formula current transformer, voltage acquisition wire middle setting connector, one end of voltage acquisition wire arrange binding clip, another
One end arranges connection-peg, current acquisition wire one end and arranges the first-class structure design of grafting so that when it is used, with rural power grids to be measured
Easily livewire work completes connection to the current carrying wire of branched line, and voltage, ampere wires easily can have with three-phase and four-line
Work(digital electricity meter connects, and easy-to-connect is quick, time saving and energy saving, improves work efficiency.（2）The easy assembling type electric energy metrical dress of the present invention
Put, it passes through using improved milliampere level open type current transformer, milliampere level electric energy meter, voltage acquisition wire and current acquisition
Improvement in the structures such as the selection of the line footpath of wire so that its measuring accuracy can be better than same device of the prior art, have
Effect meets power supply department 0.2-0.5 class precision requirements.（3）The easy assembling type electric power meter of the present invention, it is by three-phase four
Microcomputer time-controlled switch is concatenated on the active digital electricity meter of line, the working time of electric energy meter is controlled by microcomputer time-controlled switch,
The locking of electric energy meter registration can be conveniently realized and zero point is read and freeze registration, it is to avoid the difficulty that at dead of night scene is checked meter, be carried
Rise supervision level of the power supply department to agricultural operation electricity consumption.
Description of the drawings
Fig. 1 is the structural representation of the present invention, and its electrical connection with rural power grids current carrying wire to be measured is also show in figure；
Fig. 2 is the theory structure schematic diagram of the open type current transformer in Fig. 1.
Reference in above-mentioned accompanying drawing is as follows：
The active digital electricity meter 1 of three-phase and four-line,
Voltage acquisition wire 2,
Connector 3, male 31, female 32,
Binding clip 4,
Microcomputer time-controlled switch 5,
Open type current transformer 6, secondary iron core 61, Secondary Winding 62, an iron core 63,
Current acquisition wire 7,
Rural power grids current carrying wire 8.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is further detailed explanation.
（Embodiment 1）
See Fig. 1, the easy assembling type active energy metering device of the present embodiment, it is mainly by the active digital electricity meter of three-phase and four-line
1st, voltage acquisition wire 2, connector 3, binding clip 4, microcomputer time-controlled switch 5, open type current transformer 6 and electric current are adopted
Collection wire 7 is constituted.
The active digital electricity meter 1 of three-phase and four-line has A, B, C, N totally 4 sampled voltage input terminals, L and N totally 2 electricity
Source and IA+, IA-, IB+, IB-, IC+, IC- totally 6 sample rate current input terminals；The active digital electricity meter of three-phase and four-line
1 is milliampere level active electric energy meter.
Voltage acquisition wire 2 adopts 1.5 square millimeters of soft copper cash.
Connector 3 is working of plastics, and connector 3 is made up of male 31 and female 32, and male 31 and female 32 can
Plug-in cooperates；4 voltage acquisition wires 2 are fixedly installed in female 32；The other end of 4 voltage acquisition wires 2 sets
There is connection-peg, grafting corresponding with A, B, C, N sampled voltage input terminal of the active digital electricity meter 1 of three-phase and four-line respectively is electrically connected
Connect；4 voltage acquisition wires 2 are fixedly installed in male 31, and when male 31 and 32 grafting of female, 4 in male 31 piece voltage
The phase place of collection wire 2 is corresponded with A, B, C, N of 4 voltage acquisition wires 2 in female 32 and electrically connected.
Binding clip 4 is pressed from both sides for the copper electricity for being provided with insulation sleeve, and binding clip 4 is provided with 4, and 4 binding clips 4 are solid in male 31
The each welding 1 of termination difference of the fixed 4 voltage acquisition wires 2 for arranging.
Preferably using the microcomputer time-controlled switch of KG316T models in the present embodiment of microcomputer time-controlled switch 5, it has electricity
Source input（" entering " word is shown in diagram）, power input T end, power output end（Go out）With power supply output T ends；Microcomputer time controlled
Any one electricity of the power input of switch 5 and A, B, C sampled voltage input terminal of the active digital electricity meter 1 of three-phase and four-line
Connection（It is shown that electrically connecting with C terminals in figure）；Power input T end and the sampling of the active digital electricity meter 1 of three-phase and four-line
Voltage input terminal N is electrically connected；The power output end of microcomputer time-controlled switch 5 and the active digital electricity meter 1 of three-phase and four-line
Power supply L ends electrically connect；The power supply output T ends of microcomputer time-controlled switch 5 and the power supply N of the active digital electricity meter 1 of three-phase and four-line
End electrical connection.Microcomputer time-controlled switch 5 is concatenated with the active digital electricity meter 1 of three-phase and four-line, is controlled by microcomputer time-controlled switch 5
The working time of electric energy meter, the locking of electric energy meter registration is reached, for example, microcomputer time-controlled switch 5 can be set at 23 points of one day
59 points of energization work in 30 seconds, cut off the electricity supply and quit work for 00 second 00 minute at 00 point of next day, lock electric energy meter registration, it is to avoid in depth
The night difficulty checked meter of scene.
Referring to Fig. 2, when open type current transformer 6 includes secondary iron core 61, two windings, 62, iron core 63 and uses
Rural power grids current carrying wire 8 to be measured；Rural power grids current carrying wire 8 has A, B, C, N totally 4.
Open type current transformer 6 is led on the basis of commercially available open type current transformer using 1 square millimeter of soft copper
Line increases the transformation of winding quantity and forms so that current transformer reaches the output of milliampere level, realizes accurate measurement；Secondary Winding 62 is equal
It is wrapped in evenly on secondary iron core 61；One time iron core 63 is rolled by silicon steel sheet and rolled into, and an iron core 63 is coated on rural power grids when using
First winding is constituted on current carrying wire 8；Open type current transformer 6 is provided with 3, in A, B, C line of 4 rural power grids current carrying wires 8
Upper difference is each to be socketed 1.The Secondary Winding 62 of open type current transformer 6 has 2 joints（K1 and K2 in Fig. 2）.
Current acquisition wire 7 is provided with altogether 6, and each open type current transformer 6 is supporting to arrange 2 current acquisition wires 7；
2 current acquisition wires 7 and the corresponding electrical connection respectively of 2 terminals of the Secondary Winding of open type current transformer 6；Electric current
One end of collection wire 7 is provided with connection-peg；One end with connection-peg of 6 current acquisition wires 7 corresponds to and three-phase four respectively
Totally 6 sample rate current input terminal correspondence grafting are electrically connected IA+, IA-, IB+, IB-, IC+, IC- of the active digital electricity meter 1 of line
Connect；1 square millimeter of soft copper cash is preferably adopted in the present embodiment of current acquisition wire 7.
To sum up, the easy assembling type electric power meter of the present embodiment, it passes through using milliampere level open type current transformer, electricity
Pressure collection wire middle setting connector, one end of voltage acquisition wire arrange binding clip, the other end and arrange connection-peg, electricity
Stream collection wire one end arranges the first-class structure design of grafting so that when it is used, the current-carrying electricity with rural power grids branched line to be measured
Easily livewire work completes connection to line, and voltage, ampere wires easily can be connected with the active digital electricity meter of three-phase and four-line,
Easy-to-connect is quick, time saving and energy saving, improves work efficiency；It passes through using improved milliampere level open type current transformer, milliampere level
Improvement in the structures such as the selection of the line footpath of electric energy meter, voltage acquisition wire and current acquisition wire so that its measuring accuracy energy
Enough it is better than same device of the prior art, effectively meets power supply department 0.2-0.5 class precision requirements；It is by three-phase and four-line
Microcomputer time-controlled switch is concatenated on active digital electricity meter, the working time of electric energy meter, energy are controlled by microcomputer time-controlled switch
Enough conveniently realize the locking of electric energy meter registration and read zero point and freeze registration, it is to avoid the difficulty that at dead of night scene is checked meter, lifted
Supervision level of the power supply department to agricultural operation electricity consumption.
Above example is the explanation of the specific embodiment to the present invention, rather than limitation of the present invention, relevant technology
The technical staff in field without departing from the spirit and scope of the present invention, can also make various conversion and change and obtain
To the technical scheme of corresponding equivalent, therefore the technical scheme of all equivalents should be included into the patent protection model of the present invention
Enclose.
Claims (2)
1. a kind of active digital electricity meter of three-phase and four-line of easy assembling type active energy metering device, including milliampere level（1）, voltage adopts
Collection wire（2）, open type current transformer（6）With current acquisition wire（7）, the active digital electricity meter 1 of described three-phase and four-line
With A, B, C, N totally 4 sampled voltage input terminals, L and N totally 2 power ends and IA+, IA-, IB+, IB-, IC+, IC-
Totally 6 sample rate current input terminals；It is characterized in that：Also include connector（3）, binding clip（4）And microcomputer time controlled
Switch（5）；
Described voltage acquisition wire（2）For 1.5 square millimeters of soft copper cash；Connector（3）For working of plastics, socket connection
Part（3）Including the male that plug type cooperates（31）And female（32）；Female（32）On 4 voltage acquisitions be fixedly installed lead
Line（2）；4 voltage acquisition wires（2）The other end be provided with connection-peg, respectively with the active digital electricity meter of three-phase and four-line（1）
A, B, C, N sampled voltage input terminal correspondence grafting electrical connection；Male（31）On 4 voltage acquisition wires are fixedly installed
（2）；
Binding clip（4）To be provided with the copper electricity folder of insulation sleeve, binding clip（4）4 are provided with, 4 binding clips（4）In male（31）
On 4 voltage acquisition wires being fixedly installed（2）Termination difference it is each welding 1；
Microcomputer time-controlled switch（5）With power input, power input T end, power output end and power supply output T ends；Micro- electricity
Brain time switch（5）Power input and the active digital electricity meter of three-phase and four-line（1）A, B, C sampled voltage input terminal
Any one electrical connection；Power input T end and the active digital electricity meter of three-phase and four-line（1）Sampled voltage input terminal N it is electric
Connection；Microcomputer time-controlled switch（5）Power output end and power supply output T ends and the active digital electricity meter of three-phase and four-line（1）'s
The electrical connection corresponding with N-terminal of power supply L ends；
Described open type current transformer（6）Including secondary iron core（61）, Secondary Winding（62）, an iron core（63）；It is secondary
Winding（62）Equably it is wrapped in secondary iron core（61）On；Iron core（63）Rolled by silicon steel sheet and rolled into, iron when using
Core（63）It is coated on rural power grids current carrying wire to be measured（8）Upper composition first winding；Open type current transformer（6）3 are provided with,
Rural power grids current carrying wire to be measured（8）A, B, C line on respectively each socket 1；Each open type current transformer（6）It is secondary around
Group（62）It is upper to connect 2 current acquisition wires respectively（7）；Current acquisition wire（7）One end be provided with connection-peg；6 electric currents are adopted
Collection wire（7）The one end with connection-peg respectively correspond to the active digital electricity meter of three-phase and four-line（1）IA+, IA-, IB+,
IB-, IC+, IC- totally 6 sample rate current input terminal correspondence grafting electrical connections；Current acquisition wire（7）It is soft for 1 square millimeter
Matter copper cash.
2. easy assembling type active energy metering device according to claim 1, it is characterised in that：Described microcomputer time controlled is opened
Close（5）For the microcomputer time-controlled switch of KG316T models.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510714291.5A CN105259381B (en) | 2015-10-28 | 2015-10-28 | Portable active electric energy metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510714291.5A CN105259381B (en) | 2015-10-28 | 2015-10-28 | Portable active electric energy metering device |
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| CN105259381A CN105259381A (en) | 2016-01-20 |
| CN105259381B true CN105259381B (en) | 2017-05-10 |
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| CN201510714291.5A Active CN105259381B (en) | 2015-10-28 | 2015-10-28 | Portable active electric energy metering device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675937A (en) * | 2016-02-22 | 2016-06-15 | 国家电网公司 | Wiring device for electric energy metering combined junction box |
| CN108761197A (en) * | 2018-03-02 | 2018-11-06 | 国网山东省电力公司潍坊供电公司 | Can hot line job mobile examination metering method and realize the device of this method |
| CN108896798A (en) * | 2018-07-09 | 2018-11-27 | 国网山东省电力公司莱芜供电公司 | A kind of electric energy metering device |
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| CN2280912Y (en) * | 1996-08-06 | 1998-05-06 | 湛江威霸电表厂 | Double metering-function three-phase four-wire mutural-induction electric meter preventing from fraudulent use of electricity |
| CN2427812Y (en) * | 1999-09-07 | 2001-04-25 | 北京华奥电力设备有限公司 | Three phase measuring loop monitoring instrument |
| KR20050095534A (en) * | 2004-12-01 | 2005-09-29 | (주)신우디엔시 | A watt-hour metering apparatus |
| CN2802513Y (en) * | 2004-10-20 | 2006-08-02 | 邓加慧 | Monitoring metering installation |
| CN201503446U (en) * | 2009-04-07 | 2010-06-09 | 湖北盛佳电器设备有限公司 | Electric energy meter capable of being modularly assembled |
| CN201804029U (en) * | 2010-09-24 | 2011-04-20 | 陈家斌 | 220V and 380V charged assembly and disassembly electric energy metering device |
| CN102411076A (en) * | 2010-09-22 | 2012-04-11 | 陈家斌 | Outdoor high-voltage electrified installation and removal electric energy metering device |
| CN102419384A (en) * | 2010-09-24 | 2012-04-18 | 陈家斌 | Low-voltage electric energy metering device capable of being assembled and disassembled in electrified state |
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2015
- 2015-10-28 CN CN201510714291.5A patent/CN105259381B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2280912Y (en) * | 1996-08-06 | 1998-05-06 | 湛江威霸电表厂 | Double metering-function three-phase four-wire mutural-induction electric meter preventing from fraudulent use of electricity |
| CN2427812Y (en) * | 1999-09-07 | 2001-04-25 | 北京华奥电力设备有限公司 | Three phase measuring loop monitoring instrument |
| CN2802513Y (en) * | 2004-10-20 | 2006-08-02 | 邓加慧 | Monitoring metering installation |
| KR20050095534A (en) * | 2004-12-01 | 2005-09-29 | (주)신우디엔시 | A watt-hour metering apparatus |
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| CN105259381A (en) | 2016-01-20 |
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