CN207976512U - A kind of current transformer up-flow capacity extension device - Google Patents
A kind of current transformer up-flow capacity extension device Download PDFInfo
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- CN207976512U CN207976512U CN201721535140.4U CN201721535140U CN207976512U CN 207976512 U CN207976512 U CN 207976512U CN 201721535140 U CN201721535140 U CN 201721535140U CN 207976512 U CN207976512 U CN 207976512U
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- current
- lifting device
- capacity extension
- current lifting
- capacity
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model belongs to power current transformer technical field more particularly to a kind of current transformer up-flow capacity extension device.The utility model by the way that the parallel connection of its input side, the mode of outlet side parallel connection forms a whole, and then realizes that rated capacity extends using two input voltages are identical and rated current also identical current lifting device.The utility model can effectively improve the rated capacity of current lifting device so that the actual output current of current lifting device meets the rated primary current requirement of standard and tested current transformer, and guarantee test is carried out.Also have many advantages, such as that small, light weight and cost is low, energy conservation and environmental protection simultaneously.
Description
Technical field
The utility model belongs to power current transformer technical field more particularly to a kind of current transformer up-flow capacity expands
Extending apparatus.
Background technology
During current transformer is tested, current lifting device is to standard and tested current transformer power supply, therefore up-flow
The output rated primary current of device should be greater than the rated primary current of standard and tested current transformer, while current lifting device is specified
Capacity also should be greater than the capacity needed for calibrating circuit.In full size field test, the capacity factor receptor product and material of current lifting device
The factors such as material restrict, and are often difficult to meet the total capacity needed for calibrating circuit, thus the actual output current of current lifting device can not reach
To the rated primary current of standard and tested current transformer, experiment is caused to be difficult to carry out.
Invention content
In order to overcome above-mentioned defect existing in the prior art, the utility model to provide a kind of current transformer up-flow capacity
Expanding unit, its purpose is to provide a kind of device meeting current transformer up-flow capacity with smaller size smaller, lighter weight.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of current transformer up-flow capacity extension device, using two, input voltage is identical and rated current is also identical
Current lifting device, by the way that the parallel connection of its input side, the mode of outlet side parallel connection forms a whole, and then realize rated capacity expansion
Exhibition.
The entirety includes mainly current lifting device A, current lifting device B, primary side connecting line, secondary side connecting line, device input side
Connecting line and device outlet side connecting line；The wherein polarity input terminal K1B of the polarity input terminal K1A of current lifting device A and current lifting device B
It is connected by secondary side connecting line, constitutes input side one end of capacity extension device；The nonpolar input terminal K2A of current lifting device A and
The nonpolar input terminal K2B of current lifting device B is connected by secondary side connecting line, constitutes the input side other end of capacity extension device；
Two terminals of the input side of capacity extension device connect pressure regulator output；The polarity output terminal L1A of current lifting device A fills for capacity extension
One end of outlet side is set, the nonpolar output end L2B of current lifting device B is the other end of capacity extension device outlet side, current lifting device A's
Nonpolar output end L2A is connected with the polarity output terminal L1B of current lifting device B by primary side connecting line；Capacity extension device exports
Side connects standard current transformer and tested current transformer.
The capacity of the current lifting device A and current lifting device B is respectively S1 and S2, then rated capacity S=S1+ of capacity extension device
S2。
The current lifting device A and current lifting device B is all made of Shanxi Zhao Xiumin mutual inductors Co., Ltd SL12A types, rated capacity
10kVA, output current（5-5000）A.
The secondary side connecting line uses 4mm2Copper conducting wire, outside carry insulating layer.
The primary side connecting line uses 800mm2High current conducting wire, wire stylet use stranded copper wire coiling, per share diameter
For 0.1mm, outside carries insulating layer.
Described device input side connecting line uses 4mm2Copper conducting wire, outside carry insulating layer.
Described device outlet side connecting line uses 800mm2High current conducting wire, wire stylet uses stranded copper wire coiling, per share
A diameter of 0.1mm, outside carry insulating layer.
The advantages of the utility model and advantageous effect are：
The utility model can effectively improve the rated capacity of current lifting device so that the actual output current of current lifting device meets mark
The rated primary current requirement of accurate and tested current transformer, guarantee test are carried out.Also there is small, weight simultaneously
Gently, the advantages that at low cost, energy conservation and environmental protection.
In the following with reference to the drawings and specific embodiments, the utility model is described in further detail, but is not implemented by this
Example is limited.
Description of the drawings
Fig. 1 is the utility model wiring diagram；
Fig. 2 is the general frame of the utility model experiment.
In figure：The polarity input terminal K1B of polarity the input terminal K1A, current lifting device B of current lifting device A, current lifting device B, current lifting device A rise
Flow the nonpolar input terminal K2A, the nonpolar input terminal K2B of current lifting device B, the polarity output terminal L1A of current lifting device A of device A, current lifting device
The nonpolar output end L2B of the nonpolar output end L2A of the polarity output terminal L1B of B, current lifting device A, current lifting device B.
Specific implementation mode
The utility model is a kind of current transformer up-flow capacity extension device, it is identical simultaneously using two input voltages
And rated current also identical current lifting device, it is formed a whole device by the mode to the parallel connection of its input side, outlet side parallel connection,
And then achieve the purpose that rated capacity extends.Utility model device includes mainly current lifting device A, current lifting device B, primary side connection
Line, secondary side connecting line, device input side connecting line and device outlet side connecting line.
As shown in Figure 1, Fig. 1 is the system wiring figure of utility model device.The polarity input terminal K1A and liter of current lifting device A
The polarity input terminal K1B for flowing device B is connected by secondary side connecting line, constitutes input side one end of capacity extension device.Current lifting device A
Nonpolar input terminal K2A be connected by secondary side connecting line with the nonpolar input terminal K2B of current lifting device B, constitute capacity extension
The input side other end of device.Two terminals of the input side of capacity extension device connect pressure regulator output.The polarity of current lifting device A is defeated
Outlet L1A is one end of capacity extension device outlet side, and the nonpolar output end L2B of current lifting device B exports for capacity extension device
The polarity output terminal L1B of the other end of side, the nonpolar output end L2A and current lifting device B of current lifting device A passes through primary side connecting line phase
Even.Capacity extension device outlet side connects standard current transformer and tested current transformer.If the capacity of two current lifting devices point
It Wei not S1 and S2, then rated capacity S=S1+S2 of capacity extension device.
The current lifting device A and current lifting device B is all made of Shanxi Zhao Xiumin mutual inductors Co., Ltd SL12A types, rated capacity
10kVA, output current（5-5000）A.
The secondary side connecting line uses 4mm2Copper conducting wire, outside carry insulating layer.
The primary side connecting line uses 800mm2High current conducting wire, wire stylet use stranded copper wire coiling, per share diameter
For 0.1mm, outside carries insulating layer.
Described device input side connecting line uses 4mm2Copper conducting wire, outside carry insulating layer.
Described device outlet side connecting line uses 800mm2High current conducting wire, wire stylet uses stranded copper wire coiling, per share
A diameter of 0.1mm, outside carry insulating layer.
As shown in Fig. 2, Fig. 2 is the general frame of the utility model experiment.Include mainly pressure regulator, the utility model capacity
Expanding unit and standard current transformer and tested current transformer.Wherein, pressure regulator input terminal connects 220V power frequency supplies,
The output end of pressure regulator connects the input terminal of the utility model capacity extension device, the output of the utility model capacity extension device
End connection standard current transformer and tested current transformer.
Claims (7)
1. a kind of current transformer flows up capacity extension device, it is characterized in that：Two input voltages are identical and rated current
Identical current lifting device input side is in parallel, and outlet side composes in parallel an entirety；The entirety includes mainly current lifting device A, current lifting device
B, primary side connecting line, secondary side connecting line, device input side connecting line and device outlet side connecting line；Wherein current lifting device A
Polarity input terminal K1A be connected by secondary side connecting line with the polarity input terminal K1B of current lifting device B, constitute capacity extension device
Input side one end；The nonpolar input terminal K2B of the nonpolar input terminal K2A and current lifting device B of current lifting device A are connected by secondary side
Line is connected, and constitutes the input side other end of capacity extension device；Two terminals of the input side of capacity extension device connect pressure regulator
Output；The polarity output terminal L1A of current lifting device A is one end of capacity extension device outlet side, the nonpolar output end of current lifting device B
L2B is the other end of capacity extension device outlet side, the polarity output terminal of nonpolar the output end L2A and current lifting device B of current lifting device A
L1B is connected by primary side connecting line；Capacity extension device outlet side connects standard current transformer and tested current transformer.
2. a kind of current transformer according to claim 1 flows up capacity extension device, it is characterized in that：The current lifting device A
Capacity with current lifting device B is respectively S1 and S2, then rated capacity S=S1+S2 of capacity extension device.
3. a kind of current transformer according to claim 1 flows up capacity extension device, it is characterized in that：The current lifting device A
It is all made of Shanxi Zhao Xiumin mutual inductors Co., Ltd SL12A types, rated capacity 10kVA, output current with current lifting device B（5-5000）
A。
4. a kind of current transformer according to claim 1 flows up capacity extension device, it is characterized in that：The secondary side connects
Wiring uses 4mm2Copper conducting wire, outside carry insulating layer.
5. a kind of current transformer according to claim 1 flows up capacity extension device, it is characterized in that：The primary side connects
Wiring uses 800mm2High current conducting wire, wire stylet use stranded copper wire coiling, and per share a diameter of 0.1mm, outside is with insulation
Layer.
6. a kind of current transformer according to claim 1 flows up capacity extension device, it is characterized in that：Described device inputs
Side connecting line uses 4mm2Copper conducting wire, outside carry insulating layer.
7. a kind of current transformer according to claim 1 flows up capacity extension device, it is characterized in that：Described device exports
Side connecting line uses 800mm2High current conducting wire, wire stylet use stranded copper wire coiling, and per share a diameter of 0.1mm, outside carries
Insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721535140.4U CN207976512U (en) | 2017-11-17 | 2017-11-17 | A kind of current transformer up-flow capacity extension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721535140.4U CN207976512U (en) | 2017-11-17 | 2017-11-17 | A kind of current transformer up-flow capacity extension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207976512U true CN207976512U (en) | 2018-10-16 |
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ID=63771132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721535140.4U Active CN207976512U (en) | 2017-11-17 | 2017-11-17 | A kind of current transformer up-flow capacity extension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207976512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782935A (en) * | 2017-11-17 | 2018-03-09 | 国网辽宁省电力有限公司电力科学研究院 | A kind of current transformer flows up capacity extension device |
-
2017
- 2017-11-17 CN CN201721535140.4U patent/CN207976512U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782935A (en) * | 2017-11-17 | 2018-03-09 | 国网辽宁省电力有限公司电力科学研究院 | A kind of current transformer flows up capacity extension device |
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