CN201673802U - Increased safety magnetic balance current transformer - Google Patents
Increased safety magnetic balance current transformer Download PDFInfo
- Publication number
- CN201673802U CN201673802U CN2009202486038U CN200920248603U CN201673802U CN 201673802 U CN201673802 U CN 201673802U CN 2009202486038 U CN2009202486038 U CN 2009202486038U CN 200920248603 U CN200920248603 U CN 200920248603U CN 201673802 U CN201673802 U CN 201673802U
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- China
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- epoxy resin
- current transformer
- core
- magnetic balance
- winding
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Abstract
The utility model relates to an increased safety magnetic balance current transformer, which comprises an epoxy resin shell, a core, a secondary winding and a secondary bracket. The core is formed through one-step winding of a strip type silicon steel sheet, the periphery of the core is packaged by silicon rubber, the secondary winding is wound on the core packaged by the silicon rubber and is fixedly connected with the secondary bracket, and the peripheries of the secondary winding and the secondary bracket are vacuum-cast with epoxy resin into the epoxy resin shell with a completely enclosed structure; the lower part of the epoxy resin shell is provided with a secondary insert connected with a secondary lead wire, and the outer end of the secondary insert is provided with a secondary wiring screw; the bottom end of the epoxy resin shell is provided with a mounting baseboard, and the secondary insert and the secondary bracket are grounded through the mounting baseboard; and the epoxy resin shell is also provided with an explosion-proof mark. The utility model has the advantages of small size, light weight, good insulating performance, moisture resistance, water resistance, fire resistance, no need for maintenance and good seismic performance.
Description
Technical field
The utility model relates to a kind of explosion-proof Current Transformer, particularly relates to the INCREASEDSAFETY magnetic balance current transformer that uses on a kind of totally-enclosed antidetonation, the explosion-proof large scale industry motor.
Background technology
At present; the protective current transformer, that uses on the large-size machines such as China's petrochemical industry, power plant; it is varnished insulation that insulation is adopted, and its shortcoming is to use its decreasing insulating for a long time, sets off an explosion easily; and its humidity resistance is poor; its fixed form adopts is a plurality of folders modes that are fixedly clamped, and is in vibrating state for a long time, loosening easily; at this present situation, we have developed the current transformer of brand new mode.
Summary of the invention
The technical problems to be solved in the utility model provides that a kind of volume is little, explosion-proof, antidetonation and the high INCREASEDSAFETY magnetic balance current transformer of coefficient of safety.
The technical scheme that adopts is:
INCREASEDSAFETY magnetic balance current transformer (LXZZA-0.5 type) comprises epoxy package body, iron core, secondary winding, secondary support.Described iron core is a coiling moulding of banded silicon steel sheet.The peripheral packing of iron core silicone rubber belt, the secondary winding solderless wrapped connection is being wrapped on the iron core of silicone rubber belt, and secondary winding is fixedlyed connected with the secondary support, the periphery employing epoxide resin vacuum of secondary winding and secondary support is poured into the epoxy package body of full-closed structure.
Above-mentioned epoxy package body bottom is provided with the secondary inserts that is connected with secondary lead wires, and the secondary connection screw is equipped with in secondary inserts outer end.
Above-mentioned epoxy package body bottom is provided with the installation base plate, and described secondary inserts and secondary support are by installing chassis ground.
Above-mentioned epoxy package body is provided with explosion-proof mark.
Advantage of the present utility model is
1, adopts the full-closed structure of epoxide resin vacuum cast, excellent insulation performance, protection against the tide, waterproof, fire prevention, non-maintaining.
2, iron core adopts the one coiling, and vacuum paint dipping, high annealing, loss are low, energy savings, anti-seismic performance is good, the anti-saturation ability is strong.
3, secondary winding adopts full-shield technology, is not subjected to the interference of external magnetic field, can accurately reflect the state of motor.
4, the original same parameter current transformer of volume ratio has been saved the installing space of motor less than nearly 46%.
5, the footing inserts adopts optimal design, stretching resistance, anti-shear strength performance good, has overcome the shortcoming that old product can only vertical installation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the right side view of Fig. 1.
Embodiment
INCREASEDSAFETY magnetic balance current transformer comprises epoxy package body 5, iron core 6, secondary winding 4, secondary support 3.Described iron core 6 adopts a coiling moulding of banded silicon steel sheet, seamless, prevent to be in for a long time the variation of vibrating state lower core magnetic property, iron core 6 peripheral packing silicone rubber belts, make its shock-absorbing capacity good, secondary winding 4 evenly is wound on and bandages on the annular core, secondary winding 4 coilings back well tighten together with secondary winding 4 usefulness pyrocondensation belts with the secondary support 3 of being with support and fixation, the periphery employing epoxide resin vacuum of secondary winding 4 and secondary support 3 are poured into the epoxy package body 5 of full-closed structure.Epoxy package body 5 bottoms are provided with the secondary inserts 8 that connects in secondary lead wires 7.Secondary inserts 8 is equipped with secondary connection screw 2, and epoxy package body 5 bottoms are provided with installs base plate 1.Described secondary inserts 8 and secondary support 3 also are provided with explosion-proof mark 9 by base plate 1 ground connection is installed on the epoxy package body 5, constitute INCREASEDSAFETY magnetic balance current transformer.
Important technological parameters of the present utility model is as follows:
1, electric pressure: 0.5KV
2, current ratio: 100/1,50/1,100/5,50/5
3, capacity and accuracy rating 10P20 5VA; 10P5 10VA
4, frequency: 50HZ
5, device classification: indoor.
Claims (3)
1. INCREASEDSAFETY magnetic balance current transformer, comprise epoxy package body (5), iron core (6), secondary winding (4), secondary support (3), it is characterized in that described iron core (6) is a coiling moulding of banded silicon steel sheet, the peripheral packing of iron core (6) silicon rubber, secondary winding (4) solderless wrapped connection is being wrapped on the iron core of silicon rubber (6), secondary winding (4) is fixedlyed connected with secondary support (3), the periphery employing epoxide resin vacuum of secondary winding (4) and secondary support (3) is poured into the epoxy package body (5) of full-closed structure.
2. INCREASEDSAFETY magnetic balance current transformer according to claim 1 is characterized in that described epoxy package body (5) bottom is provided with the secondary inserts (8) that is connected with secondary lead wires (7), and secondary connection screw (2) is equipped with in secondary inserts (8) outer end.
3. INCREASEDSAFETY magnetic balance current transformer according to claim 1 is characterized in that described epoxy package body (5) bottom is provided with installation base plate (1), and described secondary inserts (8) and secondary support (3) are by installing base plate (1) ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202486038U CN201673802U (en) | 2009-11-24 | 2009-11-24 | Increased safety magnetic balance current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202486038U CN201673802U (en) | 2009-11-24 | 2009-11-24 | Increased safety magnetic balance current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673802U true CN201673802U (en) | 2010-12-15 |
Family
ID=43331211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202486038U Expired - Fee Related CN201673802U (en) | 2009-11-24 | 2009-11-24 | Increased safety magnetic balance current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606449A (en) * | 2013-11-13 | 2014-02-26 | 江苏靖江互感器厂有限公司 | High-precision current transformer |
-
2009
- 2009-11-24 CN CN2009202486038U patent/CN201673802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606449A (en) * | 2013-11-13 | 2014-02-26 | 江苏靖江互感器厂有限公司 | High-precision current transformer |
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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: 20101215 Termination date: 20111124 |