CN207558601U - A kind of current transformer with embedded anti-open circuit module - Google Patents
A kind of current transformer with embedded anti-open circuit module Download PDFInfo
- Publication number
- CN207558601U CN207558601U CN201721803566.3U CN201721803566U CN207558601U CN 207558601 U CN207558601 U CN 207558601U CN 201721803566 U CN201721803566 U CN 201721803566U CN 207558601 U CN207558601 U CN 207558601U
- Authority
- CN
- China
- Prior art keywords
- open circuit
- circuit module
- current transformer
- primary coil
- secondary coil
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model provides a kind of current transformer with embedded anti-open circuit module, including primary coil, secondary coil, iron core and anti-open circuit module；The primary coil is annular, primary coil and secondary coil intersecting chain, for secondary coil uniform winding on iron core, secondary coil leading-out terminal connects anti-open circuit module, anti- open circuit module is built in inside current transformer, and anti-open circuit module outgoing line end leads to current transformer leading-out terminal.Secondary anti-open circuit Module-embedding is to the inside of product, both the Insulation Problems of secondary anti-open circuit module had been solved, solve the problems, such as that installation is inconvenient again, it is entirely avoided jeopardize personal safety and equipment because current transformer two coil open-circuit voltage is excessively high, enhance the safety and stability of product.
Description
Technical field
The utility model is related to current transformer technical fields, and in particular to a kind of electricity with embedded anti-open circuit module
Current transformer.
Background technology
Current transformer is a secondary device critically important in electric system, and current transformer is mainly used to conversion line
Electric current, primary side high current is transformed into measure, measure, protect the electrical equipment of secondary side low current used.By
Secondary side winding turn ratio is more, is serially connected in measuring instrumentss and protective loop, current transformer at work, its secondary side
Circuit is to be closed, therefore measuring instrumentss and the impedance very little of protective loop series coil always, the work shape of current transformer
State is close to short circuit, since capacity is big, so the voltage that peak value is more than 250V is easily generated after second open circuit, so as to jeopardize the person
Safety.For existing current transformer when carrying out built-in electrical insulation cast, hot castable can damage anti-open circuit module board, because
Anti- open circuit module can only be arranged on outside mutual inductor by this, cause installation inconvenient, products application range is restricted, Current Mutual Inductance
The problems such as device long-term reliability can not ensure.
Invention content
According to above-mentioned deficiency in the prior art, problem to be solved in the utility model is to provide a kind of with two
The current transformer of secondary anti-open circuit module, and secondary anti-open circuit Module-embedding is made to ensure the safety of product to current transformer
And stability.
To solve the above problems, technical solution is used by the utility model：Electricity with embedded anti-open circuit module
Current transformer, including primary coil, secondary coil, iron core and anti-open circuit module；The primary coil for annular, primary coil with
Secondary coil intersecting chain, for secondary coil uniform winding on iron core, secondary coil leading-out terminal connects anti-open circuit module, anti-open circuit mould
Block is built in inside current transformer, and anti-open circuit module outgoing line end leads to current transformer leading-out terminal.
Further, setting empty slot inside the current transformer, empty slot both ends are respectively arranged with connection terminal, anti-open circuit
Module is arranged in empty slot, and secondary coil leading-out terminal is connected to anti-open circuit module, anti-open circuit module outgoing line end by connection terminal
Current transformer leading-out terminal is led to by connection terminal.
Further, the primary coil interlinks place with secondary coil into concentric distribution.
Further, casting epoxy resin inside the current transformer.
Further, the primary coil section is square or circle.
Further, the primary coil is copper pipe
Further, outside the current transformer it is silastic material.
The production method of current transformer with embedded anti-open circuit module, is reserved in Current Transformer Secondary leading-out terminal
One slot, the both ends setting connection terminal of slot, wire connection terminal secondary coil leading-out terminal being connected on slot will be on slot
Another wire connection terminal extends to current transformer leading-out terminal, and current transformer is poured into a mould, after pouring into a mould curing molding, two
Secondary anti-open circuit module is put into reserved slot, and anti-open circuit module is connected with the wire connection terminal at slot both ends, then using resin
Empty slot is poured into a mould, empty slot is poured into a mould in the state of room temperature.
The beneficial effects of the utility model are：Secondary anti-open circuit Module-embedding had both solved secondary anti-to the inside of product
The Insulation Problems for module of opening a way, and solve the problems, such as that installation is inconvenient, it is entirely avoided because current transformer two coil is opened
Road overtension and jeopardize personal safety and equipment, enhance the safety and stability of product.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model,
Fig. 2 is the side sectional view of Fig. 1,
Fig. 3 is open circuit module enlarged drawing anti-at A in Fig. 2,
Fig. 4 is the current transformer structure schematic diagram that primary coil section is square in specific embodiment 2,
Fig. 5 is that primary coil section is circular current transformer structure schematic diagram in specific embodiment 2,
In figure：1st, primary coil, 2, secondary coil, 3, iron core, 4, anti-open circuit module, 5, epoxy resin, 6, electric current
Mutual inductor leading-out terminal, 7, silastic material.
Specific embodiment
Specific embodiment 1
The utility model is described in further detail by 1-3 with reference to the accompanying drawings, the current transformer with embedded anti-open circuit module,
Including primary coil 1, secondary coil 2, iron core 3 and anti-open circuit module 4；The primary coil 1 is annular, primary coil 1 and two
2 intersecting chain of secondary coil, 2 uniform winding of secondary coil is on iron core 3, and the anti-open circuit module 4 of 2 leading-out terminal of secondary coil connection is anti-to open
Road module 4 is built in inside current transformer, and anti-open circuit 4 leading-out terminal of module leads to current transformer leading-out terminal 6.
Setting empty slot inside the current transformer, empty slot both ends are respectively arranged with connection terminal, and anti-open circuit module 4 is set
In empty slot, secondary coil leading-out terminal is connected to anti-open circuit module by connection terminal, and anti-open circuit module outgoing line end passes through connection
Terminal leads to current transformer leading-out terminal.
The primary coil 1 interlinks place with secondary coil 2 into concentric distribution.
Casting epoxy resin 5 inside the current transformer ensures the insulation performance of current transformer.
It is silastic material 7 outside the current transformer.Remain the hydrophobicity and ultraviolet-resistant aging of silicon rubber
Advantage.
The production method of current transformer with embedded anti-open circuit module：The current transformer before pouring into a mould will be assembled
It is put into mold, reserves a slot in Current Transformer Secondary leading-out terminal, the both ends setting connection terminal of slot irises out secondary line
Line end is connected to a wire connection terminal on slot, another wire connection terminal on slot is extended to current transformer leading-out terminal, right
Current transformer pours into a mould the E-39D epoxy resin of high temperature, and after pouring into a mould curing molding, mold and half product after cast are detached from,
Secondary anti-open circuit module is put into reserved slot, and anti-open circuit module is connected with the wire connection terminal at slot both ends, is then used
196 resin-cast empty slots of room temperature.
Specific embodiment 2
The utility model is described in further detail by 1-5 with reference to the accompanying drawings, the current transformer with embedded anti-open circuit module,
Including primary coil 1, secondary coil 2, iron core 3 and anti-open circuit module 4；The primary coil 1 is annular, primary coil 1 and two
2 intersecting chain of secondary coil, 2 uniform winding of secondary coil is on iron core 3, and the anti-open circuit module 4 of 2 leading-out terminal of secondary coil connection is anti-to open
Road module 4 is built in inside current transformer, and anti-open circuit 4 leading-out terminal of module leads to current transformer leading-out terminal 6.
Setting empty slot inside the current transformer, empty slot both ends are respectively arranged with connection terminal, and anti-open circuit module 4 is set
In empty slot, secondary coil leading-out terminal is connected to anti-open circuit module by connection terminal, and anti-open circuit module outgoing line end passes through connection
Terminal leads to current transformer leading-out terminal.
The primary coil 1 interlinks place with secondary coil 2 into concentric distribution.The table of the primary coil 1 and secondary coil 2
Buffer layer and shielded layer are made using insulating materials and semiconductive material in face.
Casting epoxy resin inside the current transformer ensures the insulation performance of current transformer.
The primary coil is copper pipe, and copper pipe resistance to shorting impact capacity is strong, it is resistance to it is dynamic, heat-stable current is big.Primary coil is cut
Face is circle.
The primary coil is that copper strips stacks, and section is square, more diagonal than the primary coil of rectangular section
Line shortens, insulation distance becomes larger, so iron core internal diameter size can reduce, so as to improve product capacity, parameter, can also improve production
The utilization rate of the product confined space.
It is silastic material outside the current transformer.Remain silicon rubber hydrophobicity and ultraviolet-resistant aging it is excellent
Point.
The production method of current transformer with embedded anti-open circuit module：The current transformer before pouring into a mould will be assembled
It is put into mold, reserves a slot in Current Transformer Secondary leading-out terminal, the both ends setting connection terminal of slot irises out secondary line
Line end is connected to a wire connection terminal on slot, another wire connection terminal on slot is extended to current transformer leading-out terminal, right
Current transformer pours into a mould the E-39D epoxy resin of high temperature, and after pouring into a mould curing molding, mold and half product after cast are detached from,
Secondary anti-open circuit module is put into reserved slot, and anti-open circuit module is connected with the wire connection terminal at slot both ends, is then used
196 resin-cast empty slots of room temperature.
Claims (6)
1. a kind of current transformer with embedded anti-open circuit module, it is characterised in that:Including primary coil, secondary coil,
Iron core and anti-open circuit module；The primary coil is annular, and primary coil and secondary coil intersecting chain, secondary coil are wrapped in iron
On core, secondary coil leading-out terminal connects anti-open circuit module, and anti-open circuit module is built in inside current transformer, and anti-open circuit module goes out
Line end leads to current transformer leading-out terminal.
2. a kind of current transformer with embedded anti-open circuit module according to claim 1, it is characterised in that:Institute
Setting empty slot inside current transformer is stated, empty slot both ends are respectively arranged with connection terminal, and anti-open circuit module is arranged in empty slot, and two
Secondary coil leading-out terminal is connected to anti-open circuit module by connection terminal, and anti-open circuit module outgoing line end leads to electricity by connection terminal
Current transformer leading-out terminal.
3. a kind of current transformer with embedded anti-open circuit module according to claim 1, it is characterised in that:Institute
It states primary coil and place is interlinked with secondary coil into concentric distribution.
4. a kind of current transformer with embedded anti-open circuit module according to claim 1, it is characterised in that:Institute
State casting epoxy resin inside current transformer.
5. a kind of current transformer with embedded anti-open circuit module according to claim 1, it is characterised in that:Institute
Primary coil section is stated as square or circle.
6. a kind of current transformer with embedded anti-open circuit module according to claim 1 or 5, it is characterised in that:
The primary coil is copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721803566.3U CN207558601U (en) | 2017-12-21 | 2017-12-21 | A kind of current transformer with embedded anti-open circuit module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721803566.3U CN207558601U (en) | 2017-12-21 | 2017-12-21 | A kind of current transformer with embedded anti-open circuit module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207558601U true CN207558601U (en) | 2018-06-29 |
Family
ID=62661088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721803566.3U Expired - Fee Related CN207558601U (en) | 2017-12-21 | 2017-12-21 | A kind of current transformer with embedded anti-open circuit module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207558601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808765A (en) * | 2017-12-21 | 2018-03-16 | 微能汇通（大连）电力技术有限公司 | Current transformer and its production method with embedded anti-open circuit module |
-
2017
- 2017-12-21 CN CN201721803566.3U patent/CN207558601U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808765A (en) * | 2017-12-21 | 2018-03-16 | 微能汇通（大连）电力技术有限公司 | Current transformer and its production method with embedded anti-open circuit module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103050264A (en) | Multiple-transformation-ratio selectable outdoor open-type current transformer | |
| CN207558601U (en) | A kind of current transformer with embedded anti-open circuit module | |
| CN204857392U (en) | Novel anti ware of high -power high frequency electric of five posts of three -phase | |
| CN206460865U (en) | A kind of Integral three-phase current transformer | |
| CN207818359U (en) | A kind of indoor full working scope formula 10kV cast current transformer | |
| CN203774075U (en) | Welded power transformer of annular printed circuit board | |
| CN202930201U (en) | A medium-voltage outdoor open-type current transformer with adjustable ratio | |
| CN203551621U (en) | High-voltage dry-type metering box with three-phase four-wire system | |
| CN207116212U (en) | A kind of current transformer of polytropic ratio | |
| CN206758260U (en) | Pole-mounted circuit breaker single-phase current transformer | |
| CN207558531U (en) | Indoor 10kV pours into a mould current transformer | |
| CN203055652U (en) | Combined type mutual inductor | |
| CN207558530U (en) | A kind of indoor 10kV cast current transformer | |
| CN203562291U (en) | Totally-closed current transformer | |
| CN211045255U (en) | High-capacity and high-precision zero-sequence current transformer | |
| CN202308894U (en) | Gauge cabinet | |
| CN207558600U (en) | A kind of indoor 35kV cast current transformer | |
| CN201549359U (en) | Fully-closed low voltage dry-type voltage transformer | |
| CN203799858U (en) | Dry type current transformer high in no-load voltage ratio and capacity | |
| CN203746653U (en) | Novel current mutual inductor | |
| CN207558602U (en) | A kind of indoor full working scope formula 20kV cast current transformer | |
| CN207818358U (en) | A kind of indoor full working scope formula 35kV cast current transformer | |
| CN208637289U (en) | A kind of new-type dry type converter power transformer | |
| CN201796716U (en) | Mutual inductor for injection molding packaging | |
| CN107808765A (en) | Current transformer and its production method with embedded anti-open circuit module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20201221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |