CN201044208Y - Penetration type ring section iron core current mutual inductor - Google Patents
Penetration type ring section iron core current mutual inductor Download PDFInfo
- Publication number
- CN201044208Y CN201044208Y CNU2007201090706U CN200720109070U CN201044208Y CN 201044208 Y CN201044208 Y CN 201044208Y CN U2007201090706 U CNU2007201090706 U CN U2007201090706U CN 200720109070 U CN200720109070 U CN 200720109070U CN 201044208 Y CN201044208 Y CN 201044208Y
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- iron core
- secondary coil
- primary
- current transformer
- coil
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model provides a through-type ring iron core current transformer, comprising epoxide resin main insulator, a primary coil, a secondary coil and an iron core, wherein the secondary coil is wound on the iron core; the led-out line of the primary coil is connected with a primary wire intake terminal and a primary wire outlet terminal; the primary wire intake terminal and the primary wire outlet terminal are respectively positioned on the tow sides of the main insulator; the utility model is characterized in that: the iron core is a ring iron core and is made by coiled silicon-steel sheet; the primary coil, the secondary coil and the iron core are all poured with the epoxide resin. The ring iron core is a seamless whole, thereby having the advantages of light weight, little magnetic leakage, low noises, high efficiency, good consistency of quality, good stability, etc. in operation. The primary coil, the secondary coil and the iron core are all are all poured with the epoxide resin, which changes the fact that part of the secondary coil and part of the iron core are exposed outside; the whole pouring with the epoxide resin ensures that the secondary coil and the iron core are insulated form the air, thereby greatly improving the moistureproof performance and antifouling performance, and ensuring the measuring accuracy of and prolonging the service life of the current transformer.
Description
Technical field
The utility model relates to a kind of instrument transformer, refers more particularly to the penetration type current transformer of a kind of 10kV and following electric pressure.
Background technology:
At present, the penetration type current transformer of 10kV and following electric pressure adopts and runs through semi-enclosed casting insulated architecture, comprise epoxy resin main insulation, primary winding, secondary coil and iron core, secondary coil is on iron core, primary winding and part secondary coil are poured into black box with mixed with resin, another part secondary coil and iron core expose, the lead-out wire of primary winding and end of incoming cables and leading-out terminal join, end of incoming cables and leading-out terminal lay respectively at the main body both sides, and the contour structures at main body two ends is provided with a plurality of umbrella shapes shirt rim.Profile unshakable in one's determination is a rectangle, forms with bar shaped iron closed assembly.This structure is because iron core is stacked, and there is seam in iron core, and unshakable in one's determination is fastening with folder, the iron core mis-behave that brought by thrust and seam unshakable in one's determination, and loss increase and noise are big; There are defectives such as volume is big, Heavy Weight in laminated core structure; Part secondary coil and iron core expose in addition, cause protection against the tide, antifouling property poor, influence the certainty of measurement and the useful life of current transformer.
The utility model content
The purpose of this utility model is the deficiency that overcomes prior art, and a kind of casting insulated current transformer of penetration type of structure is provided, and has that loss is little, noise is little, volume is little, in light weight, and moistureproof, advantage such as antifouling property is good.
The technical scheme that technical problem adopted that solves is: a kind of penetration type ring structure iron core current transformer, the main insulation, primary winding, secondary coil and the iron core that comprise epoxy resin, secondary coil is on iron core, the lead-out wire of primary winding and end of incoming cables and leading-out terminal join, end of incoming cables and leading-out terminal lay respectively at the main body both sides, it is characterized in that above-mentioned iron core is a ring structure iron core; Ring structure iron core is rolled by silicon steel sheet and forms; Primary winding, secondary coil and iron core are all poured into a mould with epoxy resin.
The beneficial effects of the utility model are: because iron core adopts ring structure iron core, the ring structure iron core structure is the nature tightening state, and is need not folder fastening, avoided the iron core mis-behave that brought by thrust because of iron core, and loss increases.Advantages such as ring structure iron core self is a jointless integral body, and is in light weight when operation, that leakage field is little, noise is low, efficient is high, quality conformance is good, more stable.Primary winding, secondary coil and iron core are all poured into a mould with epoxy resin, having changed part secondary coil and iron core exposes, the integrated poured secondary coil and iron core and air of making of epoxy resin is isolated, moistureproof, antifouling property have been improved greatly, the certainty of measurement and the useful life of also having improved current transformer simultaneously.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is the front view of the utility model embodiment;
Fig. 2 is the left view of the utility model embodiment;
Fig. 3 is the A-A cutaway view of the utility model embodiment.
Among the figure 1, epoxy resin main insulation 2, iron core 3, secondary coil 4, primary winding 5, secondary connection terminal 6, hoisting bracket 7, umbrella shape shirt rim 8, end of incoming cables 9, a leading-out terminal
Embodiment:
The current transformer of the utility model embodiment is the totally enclosed type current transformer of poured with epoxy resin, is applicable to the usefulness of doing the measurement and the relaying protection of electric current, electric energy in 50Hz, 10kV and the following circuit.As Fig. 1, shown in 2 and 3, the ring structure iron core that iron core 2 is rolled by silicon steel sheet, secondary coil 4 is on iron core, primary winding 3 passes the window of iron core 2, the lead-out wire of primary winding 3 is connected with leading-out terminal 9 pictures with an end of incoming cables 8 respectively, iron core 2, secondary coil 4 and primary winding 3 all carry out moulding by casting with epoxy resin main insulation 1, an end of incoming cables 8 and a leading-out terminal 9 lay respectively at the main body both sides, the contour structures at main body two ends is provided with a plurality of umbrella shapes shirt rim 7, secondary connection terminal 5 is on hoisting bracket 6, as shown in Figure 2, an end of incoming cables 8 and a leading-out terminal 9 of being positioned at the correspondence of umbrella shape shirt rim 7 are provided with " P1 ", " P2 " two signs, an end of incoming cables 8 and a leading-out terminal 9 are for being provided with the copper bar of installing hole.
Because the ring structure iron core that iron core adopts silicon steel sheet to roll, the ring structure iron core structure is the nature tightening state, and is need not folder fastening, avoided the iron core mis-behave that brought by thrust because of iron core, and loss increases.Advantages such as ring structure iron core self is a jointless integral body, and is in light weight when operation, that leakage field is little, noise is low, efficient is high, quality conformance is good, more stable.Primary winding, secondary coil and iron core are all poured into a mould with epoxy resin, having changed part secondary coil and iron core exposes, the integrated poured secondary coil and iron core and air of making of epoxy resin is isolated, moistureproof, antifouling property have been improved greatly, the certainty of measurement and the useful life of also having improved current transformer simultaneously.
Claims (3)
1. penetration type ring structure iron core current transformer, the main insulation, primary winding, secondary coil and the iron core that comprise epoxy resin, secondary coil is on iron core, the lead-out wire of primary winding and end of incoming cables and leading-out terminal join, end of incoming cables and leading-out terminal lay respectively at the main body both sides, it is characterized in that above-mentioned iron core is a ring structure iron core.
2. a kind of penetration type ring structure iron core current transformer according to claim 1 is characterized in that above-mentioned ring structure iron core is rolled by silicon steel sheet to form.
3. according to claim 1 or the described a kind of penetration type ring structure iron core current transformer of 2 arbitrary claims, it is characterized in that primary winding, secondary coil and iron core all pour into a mould with epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201090706U CN201044208Y (en) | 2007-05-09 | 2007-05-09 | Penetration type ring section iron core current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201090706U CN201044208Y (en) | 2007-05-09 | 2007-05-09 | Penetration type ring section iron core current mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201044208Y true CN201044208Y (en) | 2008-04-02 |
Family
ID=39259096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201090706U Expired - Fee Related CN201044208Y (en) | 2007-05-09 | 2007-05-09 | Penetration type ring section iron core current mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201044208Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869831A (en) * | 2016-05-26 | 2016-08-17 | 国家电网公司 | 36000A strong current generator and detecting method thereof |
-
2007
- 2007-05-09 CN CNU2007201090706U patent/CN201044208Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869831A (en) * | 2016-05-26 | 2016-08-17 | 国家电网公司 | 36000A strong current generator and detecting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080402 Termination date: 20120509 |