CN202996567U - High-accuracy low-power current mutual inductor for electronic instrument and microcomputer protection - Google Patents
High-accuracy low-power current mutual inductor for electronic instrument and microcomputer protection Download PDFInfo
- Publication number
- CN202996567U CN202996567U CN 201220626251 CN201220626251U CN202996567U CN 202996567 U CN202996567 U CN 202996567U CN 201220626251 CN201220626251 CN 201220626251 CN 201220626251 U CN201220626251 U CN 201220626251U CN 202996567 U CN202996567 U CN 202996567U
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- China
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- copper wire
- wire winding
- magnetic core
- mutual inductor
- current mutual
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A high-accuracy low-power current mutual inductor for electronic instrument and microcomputer protection mainly comprises a primary copper wire winding, a secondary copper wire winding, a magnetic core, an insulation casing and a base. The primary copper wire winding penetrates through the center of the magnetic core, the secondary copper wire winding is evenly wound around the magnetic core and placed in the primary copper wire winding, an insulation layer is arranged between the primary copper wire winding and the secondary copper wire winding, and the insulation casing and the base form a whole. The current mutual inductor has the advantages of being small in size, light in weight, low in raw material cost and strong in magnetic compatibility and meeting the currently proposed requirement for being low carbon and environment-friendly. Further, a signal detection unit of a measuring instrument and microcomputer protection device can remove a converter after the current mutual inductor is adopted, an analog to digital conversion circuit can be directly entered after amplitude limiting, and a large amount of resources can be saved.
Description
Technical field
The utility model relates to a kind of current transformer, relates in particular to a kind of high accuracy for electronic instrument, Microcomputer Protection, low power current transformer.
Background technology
Progress along with technology; be transported to now double measurement, the protection of electric equipment and all adopted electronic instrument, Microcomputer Protection; these instrument, protection can be done very highly due to itself precision; general 0.5 grade, therefore the precision of previous stage current transformer there has been higher requirement, in addition; and because electronic instrument, microcomputer protecting device are very little to the power requirement of signal; generally only need 0.1-0.5VA, thus, utility model high accuracy, lower powered instrument transformer.
The utility model content
The purpose of this utility model is not enough in order to overcome in prior art, thereby a kind of high accuracy for electronic instrument, Microcomputer Protection, low power current transformer are provided.
Be used for electronic instrument, the high accuracy of Microcomputer Protection, low power current transformer; mainly comprise copper conductor winding, secondary copper wire winding, magnetic core, insulation crust and base one time; one time the copper conductor winding runs through by the magnetic core center; secondary copper wire winding uniform winding is placed on magnetic core in copper conductor winding; be provided with insulating barrier between copper conductor winding and secondary copper wire winding, insulation crust and base consist of an integral body.
Adopt the beneficial effect of technique scheme to be:
The utlity model has that volume is little, lightweight, the cost of raw material is low and Electro Magnetic Compatibility is strong, meet low-carbon (LC), the environmental requirement of present proposal.And after adopting this instrument transformer, the detecting signal unit of measuring instrument, microcomputer protecting device can be cancelled converter, directly enters analog to digital conversion circuit after amplitude limit, from and can save ample resources.
Description of drawings
Fig. 1 is high accuracy, the low power current transformer structural representation that the utility model is used for electronic instrument, Microcomputer Protection.
In figure: copper conductor winding of 1-, 2-secondary copper wire winding, 3-magnetic core, 4-insulation crust, 5-base.
Embodiment
be used for electronic instrument, the high accuracy of Microcomputer Protection, low power current transformer mainly comprises copper conductor winding 1 one time, secondary copper wire winding 2, magnetic core 3, insulation crust 4 and base 5, one time copper conductor winding 1 runs through by magnetic core 3 centers, secondary copper wire winding 2 uniform winding are placed on magnetic core 3 in copper conductor winding 1, be provided with insulating barrier between copper conductor winding 1 and secondary copper wire winding 2, insulation crust 4 consists of an integral body with base 5, the output of secondary low-power signal can be according to the secondary device requirement, electric current can be the 0.1-0.5A scope, power is 1-2VA.
The output of the utility model secondary is the low-power current signal linearly proportional with primary current; A secondary winding just can satisfy the multiple requirement of measuring and protecting simultaneously; Also can be by customer requirements, secondary winding is a plurality of, respectively as metering, measurement, protection etc.; The utlity model has that volume is little, lightweight, the cost of raw material is low and Electro Magnetic Compatibility is strong, meet low-carbon (LC), the environmental requirement of present proposal.And after adopting this instrument transformer, the detecting signal unit of measuring instrument, microcomputer protecting device can be cancelled converter, directly enters analog to digital conversion circuit after amplitude limit, from and can save ample resources.
The utility model product is compared with similar other products, and volume is original 1/3, and weight is also original 1/3, and cost is only original 1/2, and precision improves, and is applicable to the current transformer of 0.4-35kV electric current 5A to 10000A.
Claims (1)
1. be used for electronic instrument, the high accuracy of Microcomputer Protection, low power current transformer, it is characterized in that: it mainly comprises a copper conductor winding (1), secondary copper wire winding (2), magnetic core (3), insulation crust (4) and base (5), a copper conductor winding (1) runs through by magnetic core (3) center, secondary copper wire winding (2) uniform winding is placed in a copper conductor winding (1) on magnetic core (3), be provided with insulating barrier between a copper conductor winding (1) and secondary copper wire winding (2), insulation crust (4) consists of an integral body with base (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220626251 CN202996567U (en) | 2012-11-23 | 2012-11-23 | High-accuracy low-power current mutual inductor for electronic instrument and microcomputer protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220626251 CN202996567U (en) | 2012-11-23 | 2012-11-23 | High-accuracy low-power current mutual inductor for electronic instrument and microcomputer protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996567U true CN202996567U (en) | 2013-06-12 |
Family
ID=48567712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220626251 Expired - Fee Related CN202996567U (en) | 2012-11-23 | 2012-11-23 | High-accuracy low-power current mutual inductor for electronic instrument and microcomputer protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202996567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969137A (en) * | 2012-11-23 | 2013-03-13 | 遵义长征电器开关设备有限责任公司 | High-precision and low-power current transformer for protecting electronic instrument and microcomputer |
-
2012
- 2012-11-23 CN CN 201220626251 patent/CN202996567U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969137A (en) * | 2012-11-23 | 2013-03-13 | 遵义长征电器开关设备有限责任公司 | High-precision and low-power current transformer for protecting electronic instrument and microcomputer |
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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 |
Granted publication date: 20130612 Termination date: 20171123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |