CN202534495U - Electronic type current transformer - Google Patents
Electronic type current transformer Download PDFInfo
- Publication number
- CN202534495U CN202534495U CN2012200409607U CN201220040960U CN202534495U CN 202534495 U CN202534495 U CN 202534495U CN 2012200409607 U CN2012200409607 U CN 2012200409607U CN 201220040960 U CN201220040960 U CN 201220040960U CN 202534495 U CN202534495 U CN 202534495U
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- sliding block
- slide block
- pour mass
- coil pour
- paderewski coil
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Abstract
The utility model relates to a current transformer of a power system, in particular to an electronic type current transformer. The electronic type current transformer comprises a first Rogowski coil casting body, a second Rogowski coil casting body, a first sliding block fixed rod, a second sliding block fixed rod, a first sliding block and a second sliding block, wherein the first Rogowski coil casting body and the second Rogowski coil casting body are fixed together through a threaded rod; the first sliding block fixed rod is arranged on the first Rogowski coil casting body and fixed through nuts; the second sliding block fixed rod is arranged on the second Rogowski coil casting body and fixed through nuts; the upper ends of the first sliding block and the second sliding block are sleeved on the first sliding block fixed rod; and the lower ends of the first sliding block and the second sliding block are sleeved on the second sliding block fixed rod. By application of the technical scheme, the current measurement range is wide; based on design of the opening structure, the electronic type current transformer is convenient to install; the position of a copper plate is adjusted by the sliding blocks, so the copper plate is accurate in centering; and signal transfer is realized by an aeronautic plug, so the precision of products is improved.
Description
Technical field
The utility model relates to the current transformer of electric power system, relates in particular to a kind of electronic current mutual inductor.
Background technology
Power industry is at present mainly adopted and is contained electromagnetic current transducer measurement primary current unshakable in one's determination.Excessive tested electric current and the aperiodic component in the fault current make the unshakable in one's determination saturated of electromagnetic current transducer easily, cause the distortion of instrument transformer output waveform, and then probably cause protective relaying device malfunction or tripping.And the electro permanent magnetic formula instrument transformer that is used for high pressure adopts oil-insulation mostly, has the inflammable and explosive potential safety hazard of safety.Simultaneously, along with the raising of voltage class of electric power system, more and more complicated instrument transformer insulating Design also make the cost of instrument transformer sharply rise.In addition, the simulation of electromagnetic transformer output is difficult to and digitized secondary device direct interface, can not adapt to the digital development trend in power station.
Electronic current mutual inductor adopt devices such as optics or Luo-coil as sensing element to obtain tested current signal; And adopt optical fiber to transmit signal; Thereby it is easily unshakable in one's determination saturated fundamentally to have overcome electromagnetic current transducer, insulating Design difficulty, shortcoming that can not Direct Digital output.Electronic current mutual inductor generally is made up of the signal optical fibre three parts that are positioned on high-tension side sensing unit, are positioned at the signal processing unit of low-pressure side and connect both.At present existing multi-form employing Luo-coil puts into operation as the electronic current mutual inductor of sensing unit or trys out.
The utility model content
In order to overcome the deficiency of existing current transformer, the utility model provides a kind of electronic current mutual inductor that a kind of current measuring range is big, can realize signal digitalized output.
A kind of electronic current mutual inductor that the utility model embodiment provides comprises: but but first sieve Paderewski coil pour mass, second sieve Paderewski coil pour mass, the first slide block fixed lever, the second slide block fixed lever, first slide block, second slide block;
But but said first sieve Paderewski coil pour mass and second sieve Paderewski coil pour mass are fixed together through screw rod;
But the said first slide block fixed lever is contained on first sieve Paderewski coil pour mass, but the said second slide block fixed lever be contained on second sieve Paderewski coil pour mass, fix through nut;
The upper end of said first slide block and second slide block is enclosed within on the first slide block fixed lever, and the lower end is enclosed within on the second slide block fixed lever.
Optional, but an end of said first sieve Paderewski coil pour mass is equipped with the interconnected aviation head of first signal; But an end of said second sieve Paderewski coil pour mass is equipped with the interconnected aviation head of secondary signal.
Optional, be connected with the interconnected shielding conductor of signal between interconnected aviation head of described first signal and the interconnected aviation head of secondary signal.
Optional, but the other end of said first sieve Paderewski coil pour mass is equipped with first signal output aviation head; But the other end of said second sieve Paderewski coil pour mass is equipped with secondary signal output aviation head.
Optional, on the said secondary signal output aviation head signal output shielded type cable is housed.
Therefore the technical scheme of application the utility model embodiment can be measured 10000 amperes to 50000 amperes electric current; The design of hatch frame, easy for installation; Adopt the position of slide block adjustment bronze medal, make bronze medal centering accurate; Adopt aviation plug to carry out signal converting, improved the precision of product.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, does not constitute the improper qualification to the utility model, in the accompanying drawings:
The structural representation of a kind of electronic current mutual inductor that Fig. 1 provides for the utility model embodiment 1.
Embodiment
To combine accompanying drawing and specific embodiment to specify the utility model below, be used for explaining the utility model in the illustrative examples and the explanation of this utility model, but not as the qualification to the utility model.
With reference to shown in Figure 1; The disclosed a kind of electronic current mutual inductor of the utility model comprises: but but first sieve Paderewski coil pour mass 1, second sieve Paderewski coil pour mass, 2, the first slide block fixed levers 3, the second slide block fixed lever 4, first slide block 5, second slide block 6; But but first sieve Paderewski coil pour mass 1 and second sieve Paderewski coil pour mass 2 are fixed together through screw rod; But the first slide block fixed lever 3 is contained on first sieve Paderewski coil pour mass 1, but the second slide block fixed lever adorns 4 on second sieve Paderewski coil pour mass 2, fixes through nut; The upper end of first slide block 5 and second slide block 6 is enclosed within on the first slide block fixed lever 3, and the lower end is enclosed within on the second slide block fixed lever 4; But formed sieve Paderewski coil.But an end of first sieve Paderewski coil pour mass 1 is equipped with the interconnected aviation of first signal 8; But an end of second sieve Paderewski coil pour mass 2 is equipped with the interconnected aviation of secondary signal 9.Can screw rod be taken off when installing at the scene; But but transmission current is drained between first sieve Paderewski coil pour mass 1 and second sieve Paderewski coil pour mass 2; Fix with screw rod afterwards; Regulate the nut of first slide block 5 and second slide block 6 again, but but transmission current is come in the middle of first sieve Paderewski coil pour mass 1 and the second sieve Paderewski coil pour mass 2, fix screw rod and nut again; But but the interconnected aviation of first signal 8 and the interconnected aviation of secondary signal 9 can with the aviation seat of first sieve Paderewski coil pour mass 1, second sieve Paderewski coil pour mass 2 to connecting, but form the signal path of sieve Paderewski coil.Be connected with the interconnected shielding conductor 10 of signal between interconnected aviation of first signal 8 and the interconnected aviation of secondary signal 9.But the other end of first sieve Paderewski coil pour mass 1 is equipped with first signal output aviation 11; But the other end of second sieve Paderewski coil pour mass 2 is equipped with secondary signal output aviation 12.On the secondary signal output aviation head signal output shielded type cable 13 is housed.First signal output aviation 11, secondary signal output aviation 12, signal output shielded type cable 13 all can be used as the signal output part of Luo Kefusi coil.
More than technical scheme that the utility model embodiment is provided carried out detailed introduction; Used concrete example among this paper principle and the execution mode of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (5)
1. electronic current mutual inductor is characterized in that: comprising: but but first sieve Paderewski coil pour mass, second sieve Paderewski coil pour mass, the first slide block fixed lever, the second slide block fixed lever, first slide block, second slide block;
But but said first sieve Paderewski coil pour mass and second sieve Paderewski coil pour mass are fixed together through screw rod;
But the said first slide block fixed lever is contained on first sieve Paderewski coil pour mass, but the said second slide block fixed lever be contained on second sieve Paderewski coil pour mass, fix through nut;
The upper end of said first slide block and second slide block is enclosed within on the first slide block fixed lever, and the lower end is enclosed within on the second slide block fixed lever.
2. a kind of electronic current mutual inductor according to claim 1 is characterized in: but an end of said first sieve Paderewski coil pour mass is equipped with the interconnected aviation head of first signal; But an end of said second sieve Paderewski coil pour mass is equipped with the interconnected aviation head of secondary signal.
3. a kind of electronic current mutual inductor according to claim 2 is characterized in: be connected with the interconnected shielding conductor of signal between interconnected aviation head of described first signal and the interconnected aviation head of secondary signal.
4. a kind of electronic current mutual inductor according to claim 2 is characterized in: but the other end of said first sieve Paderewski coil pour mass is equipped with first signal output aviation head; But the other end of said second sieve Paderewski coil pour mass is equipped with secondary signal output aviation head.
5. a kind of electronic current mutual inductor according to claim 4 is characterized in: on the said secondary signal output aviation head signal output shielded type cable is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200409607U CN202534495U (en) | 2012-02-08 | 2012-02-08 | Electronic type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200409607U CN202534495U (en) | 2012-02-08 | 2012-02-08 | Electronic type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534495U true CN202534495U (en) | 2012-11-14 |
Family
ID=47135659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200409607U Expired - Fee Related CN202534495U (en) | 2012-02-08 | 2012-02-08 | Electronic type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065783A (en) * | 2012-12-28 | 2013-04-24 | 宁夏回族自治区电力公司 | Buckling type electronic current transformer |
| CN108106682A (en) * | 2018-01-16 | 2018-06-01 | 中苏科技股份有限公司 | Multichannel ultrasonic open-channel meter |
-
2012
- 2012-02-08 CN CN2012200409607U patent/CN202534495U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065783A (en) * | 2012-12-28 | 2013-04-24 | 宁夏回族自治区电力公司 | Buckling type electronic current transformer |
| CN108106682A (en) * | 2018-01-16 | 2018-06-01 | 中苏科技股份有限公司 | Multichannel ultrasonic open-channel meter |
| CN108106682B (en) * | 2018-01-16 | 2024-05-10 | 中苏科技股份有限公司 | Multi-channel ultrasonic open channel flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20210208 |