CN104240928A - All-working-condition type low-voltage current transformer - Google Patents
All-working-condition type low-voltage current transformer Download PDFInfo
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- CN104240928A CN104240928A CN201410474446.8A CN201410474446A CN104240928A CN 104240928 A CN104240928 A CN 104240928A CN 201410474446 A CN201410474446 A CN 201410474446A CN 104240928 A CN104240928 A CN 104240928A
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- base plate
- iron core
- type low
- voltage current
- housing
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Abstract
The invention relates to an all-working-condition type low-voltage current transformer which comprises a closed iron core, a secondary winding and a shell, wherein the closed iron core is arranged at the upper part of the shell; the secondary winding is wound on the closed iron core; an inwards-sunken secondary wiring box is arranged on the bottom surface of the shell and is connected to the bottom surface of the shell through a base plate and a sealing pad in a sealed locking manner; two output leads of the secondary winding are led out in a manner of penetrating through the base plate through a waterproof joint, which is connected to the base plate in a sealed penetrating manner, in the secondary wiring box. An insulating drum is arranged in the closed iron core of a pouring body of the transformer, so that an insulating distance between a line penetrating through the transformer and the secondary winding of the transformer can meet a withstand voltage requirement; the base plate serves as a secondary wiring box cover plate of the transformer; by the adoption of design of the sealing pad, a flame retardant mesh sleeves the outer layers of the output leads, and the output leads are led out of the base plate through the waterproof joint, so that various special environments can be met; the all-working-condition type low-voltage current transformer is convenient to mount and firmly fixed.
Description
Technical field
The present invention relates to a kind of current transformer, is a kind of full working scope type low-voltage current mutual inductor specifically, measures and Microcomputer Protection for 0.66kV and following power circuit.
Background technology
In switch cubicle in the extensive use of existing punching low-voltage current mutual inductor and 0.66KV and following power circuit, the circuit through instrument transformer is measured and Microcomputer Protection.Along with electric power facility increase in investment in recent years, the construction of the engineerings such as transferring electricity from the west to the east, north and south supply mutually, trans-regional networking, driven the fast development of switch cubicle industry, the environment for use brought thus is also complicated especially, as high temperature, humidity, salt fog etc.The circuit of general switch cubicle producer adopts copper bar and cable, and cable itself has insulation function, mainly relies on instrument transformer self insulating barrier to insulate according to copper bar.Therefore select one can meet various particular surroundings, the good instrument transformer of self insulation property is most important.
Summary of the invention
In order to solve above-mentioned deficiency of the prior art, the invention provides one and can meet various particular surroundings, the full working scope type low-voltage current mutual inductor that self insulation property is good.
Technical scheme of the present invention is: a kind of full working scope type low-voltage current mutual inductor, comprise iron core-closed, secondary winding and housing, iron core-closedly be arranged at housing upper, secondary winding be wound in iron core-closed on, described housing bottom surface is provided with the secondary terminal box be inwardly recessed, secondary terminal box to be close to by screw dense block through base plate and sealing gasket and to be connected on housing bottom surface, and two output leads of secondary coil pick out through base plate through the water joint of sealing cross-under on base plate by secondary terminal box.
Further, described output lead is socketed with net retardance.
Further, described iron core-closed inner ring is provided with insulation burrel.
Again further, described housing is ABS housing or polyurethane shells or unsaturated-resin housing.
Compared with prior art, advantage of the present invention is: establish insulation burrel in instrument transformer pour mass is iron core-closed, can ensure the insulation distance of circuit through instrument transformer and instrument transformer secondary coil, meet requirement of withstand voltage; Base plate, as the secondary connection lid plate of instrument transformer, adopts sealing gasket design, and output lead skin cover has net retardance, and pass base plate by water joint and can meet various particular surroundings, it is convenient to install, fixed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: housing 1, iron core-closed 2, insulation burrel 3, secondary coil 4, output lead 5, sealing gasket 6, base plate 7, screw 8, water joint 9, net retardance 10.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Shown in Fig. 1, a kind of full working scope type low-voltage current mutual inductor comprises housing 1, iron core-closed 2, insulation burrel 3, secondary coil 4, sealing gasket 6, base plate 7, screw 8, water joint 9 and net retardance 10.Housing 1 is ABS housing or polyurethane shells or unsaturated-resin housing, iron core-closed 2 are packaged in housing 1 top and closed iron believes that 2 inner rings are provided with the insulation burrel 3 of integral packaging in housing 1, secondary winding 4 is wound on iron core-closed 2, housing 1 bottom surface is provided with the secondary terminal box be inwardly recessed, secondary terminal box to be close to by screw 8 dense block through base plate 7 and sealing gasket 6 and to be connected on housing 1 bottom surface, two output leads 5 of secondary coil 4 pick out through base plate through the water joint 9 of sealing cross-under on base plate by secondary terminal box, output lead 5 are socketed with net retardance 10.
Claims (4)
1. a full working scope type low-voltage current mutual inductor, comprise iron core-closed, secondary winding and housing, iron core-closedly be arranged at housing upper, secondary winding be wound in iron core-closed on, it is characterized in that: described housing bottom surface is provided with the secondary terminal box be inwardly recessed, secondary terminal box to be close to by screw dense block through base plate and sealing gasket and to be connected on housing bottom surface, and two output leads of secondary coil pick out through base plate through the water joint of sealing cross-under on base plate by secondary terminal box.
2. a kind of full working scope type low-voltage current mutual inductor according to claim 1, is characterized in that: described output lead is socketed with net retardance.
3. a kind of full working scope type low-voltage current mutual inductor according to claim 1, is characterized in that: described iron core-closed inner ring is provided with insulation burrel.
4. a kind of full working scope type low-voltage current mutual inductor according to claim 1, is characterized in that: described housing is ABS housing or polyurethane shells or unsaturated-resin housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474446.8A CN104240928A (en) | 2014-09-18 | 2014-09-18 | All-working-condition type low-voltage current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474446.8A CN104240928A (en) | 2014-09-18 | 2014-09-18 | All-working-condition type low-voltage current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104240928A true CN104240928A (en) | 2014-12-24 |
Family
ID=52228830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410474446.8A Pending CN104240928A (en) | 2014-09-18 | 2014-09-18 | All-working-condition type low-voltage current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104240928A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58186923A (en) * | 1982-04-26 | 1983-11-01 | Nissin Electric Co Ltd | Metal expansion tube joint |
| CN2502386Y (en) * | 2001-09-17 | 2002-07-24 | 大连金业电力设备有限公司 | 0.5 KV outdoor dry type current transformer |
| CN2872564Y (en) * | 2005-10-17 | 2007-02-21 | 王玉璞 | Guide-bar penetrating current mutual inductor |
| CN201036156Y (en) * | 2007-02-02 | 2008-03-12 | 湖北盛佳电器设备有限公司 | Current mutual inductor with connection cable |
| CN300953283S (en) * | 2008-07-04 | 2009-07-01 | 岑宝法 | Tri-proof light (258-1) |
| CN201421775Y (en) * | 2009-01-07 | 2010-03-10 | 大连北方互感器集团有限公司 | Outdoor reversed current transformer for electric locomotive |
| CN201449883U (en) * | 2009-07-14 | 2010-05-05 | 中山市泰峰电气有限公司 | Sleeved current transformer |
| CN204117829U (en) * | 2014-09-18 | 2015-01-21 | 江苏科兴电器有限公司 | A kind of full working scope type low-voltage current mutual inductor |
-
2014
- 2014-09-18 CN CN201410474446.8A patent/CN104240928A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58186923A (en) * | 1982-04-26 | 1983-11-01 | Nissin Electric Co Ltd | Metal expansion tube joint |
| CN2502386Y (en) * | 2001-09-17 | 2002-07-24 | 大连金业电力设备有限公司 | 0.5 KV outdoor dry type current transformer |
| CN2872564Y (en) * | 2005-10-17 | 2007-02-21 | 王玉璞 | Guide-bar penetrating current mutual inductor |
| CN201036156Y (en) * | 2007-02-02 | 2008-03-12 | 湖北盛佳电器设备有限公司 | Current mutual inductor with connection cable |
| CN300953283S (en) * | 2008-07-04 | 2009-07-01 | 岑宝法 | Tri-proof light (258-1) |
| CN201421775Y (en) * | 2009-01-07 | 2010-03-10 | 大连北方互感器集团有限公司 | Outdoor reversed current transformer for electric locomotive |
| CN201449883U (en) * | 2009-07-14 | 2010-05-05 | 中山市泰峰电气有限公司 | Sleeved current transformer |
| CN204117829U (en) * | 2014-09-18 | 2015-01-21 | 江苏科兴电器有限公司 | A kind of full working scope type low-voltage current mutual inductor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141224 |