CN104240930A - Special three-phase voltage transformer with protective device for solid ring network cabinet - Google Patents
Special three-phase voltage transformer with protective device for solid ring network cabinet Download PDFInfo
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- CN104240930A CN104240930A CN201410474426.0A CN201410474426A CN104240930A CN 104240930 A CN104240930 A CN 104240930A CN 201410474426 A CN201410474426 A CN 201410474426A CN 104240930 A CN104240930 A CN 104240930A
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- metal shell
- groups
- voltage transformer
- phase voltage
- protective device
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Abstract
The invention relates to a special three-phase voltage transformer with a protective device for a solid ring network cabinet. The special three-phase voltage transformer comprises two groups of iron cores, two groups of secondary windings and two groups of primary windings, wherein the two groups of iron cores, the two groups of secondary windings and the two groups of primary windings are encapsulated in a metal shell by using epoxy resin; three connecting sleeves with primary conducting rods are arranged on any side face of the metal shell; a secondary leading-out terminal is arranged at the bottom of any side face of the metal shell; the primary conducting rods are connected to one end of a high voltage fuse through springs; the other end of the high voltage fuse is connected to the primary windings; the side face of the metal shell at the other end of the high voltage fuse is connected with an insulated plug in a sealing mode; the insulated plug abuts against the high voltage fuse through a cover cap connected to the other end of the high voltage fuse in a sleeving mode.
Description
Technical field
The present invention relates to a kind of voltage transformer, is a kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device specifically.
Background technology
Along with the development of switch cubicle, require more and more higher to cabinet, occurred solid loop-net cabinet in recent years, this cabinet requires that all components and parts must be encapsulated in epoxy resin; And it is charged tangible to require to realize instrument transformer, this very harsh technical requirement.But so far, seldom there is the instrument transformer of this respect supporting with it.In this case, the instrument transformer used in these cabinets, much all can not meet the requirement of solid loop-net cabinet completely.The voltage transformer that solid loop-net cabinet generally adopts at present, is connected instrument transformer with switch cubicle by elbow cable end mostly.This instrument transformer outer surface that makes has voltage's distribiuting, does not allow staff close to instrument transformer, otherwise shock hazard can occur during operation.In order to ensure safety, the instrument transformer outside be arranged in switch cubicle all arranges isolation or enough spaces, and it is very large that such instrument transformer takies.Design original intention with solid loop-net cabinet not to be inconsistent.Existing instrument transformer can not meet the needs of solid loop-net cabinet, is starved of the solid loop-net cabinet dedicated three-phase voltage transformer of band protective device.
Summary of the invention
For above shortcomings part in prior art, the invention solves above problem, provide that a kind of volume is little, insulation is reliable, the solid loop-net cabinet dedicated three-phase voltage transformer of band protective device.
Technical scheme of the present invention is: a kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device, comprise by the two group iron cores of epoxy resin encapsulated in metal shell, two groups of secondary winding and two groups of windings, any side of metal shell is provided with the joint sleeve of three band primary conductive bars, any side bottom of metal shell is provided with secondary outgoing line end, its technical characterstic is that described primary conductive bar connects high-tension fuse one end through spring, the high-tension fuse other end connects a winding, the metal shell side of the high-tension fuse other end is sealed with insulation plug, the block of insulation plug through being socketed on the high-tension fuse other end pushes against high-tension fuse.
Further, described two groups of windings are that VV is connected with the primary conductive bar in three joint sleeves.
Further, semiconductor enamelled coating is coated with in described metal shell.
Again further, described joint sleeve is connected on metal shell through insulated screw, insulated screw and housing equipotential link.
Adopt technique scheme; the invention has the beneficial effects as follows: by epoxy resin encapsulated in whole metal shell; make the integral formula of instrument transformer; except joint sleeve, remainder outer surface is that metal shell covers, and the joint sleeve of instrument transformer coordinates to be formed with the normal sleeve in solid loop-net cabinet to be measured and protective loop; because metal shell is ground connection; operating voltage transformer is in zero potential, and running protection is safe and reliable.When instrument transformer needs to change fuse, as long as insulation plug is dismantled, then back-out block, i.e. replaceable fuse, easy to loading and unloading, be convenient to safeguard, reduce use cost.This instrument transformer volume is little, lightweight, compact conformation, band defencive function rationally distributed, easy for installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1.
In figure: joint sleeve 1, primary conductive bar 2, spring 3, high-tension fuse 4, block 5, insulation plug 6, winding 7, secondary winding 8, annular core 9, epoxy resin 10, metal shell 11, secondary outgoing line end 12, semiconductor enamelled coating 13.
Embodiment
Below in conjunction with accompanying drawing, the present embodiment is described further.
Shown in Fig. 1,2, a kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device comprises joint sleeve 1, primary conductive bar 2, spring 3, high-tension fuse 4, block 5, insulation plug 6, winding 7, secondary winding 8, annular core 9, epoxy resin 10, metal shell 11, secondary outgoing line end 12 and a semiconductor enamelled coating 13.Epoxy resin 10 embedding two groups of annular cores 9, two groups of secondary winding 8 and two groups of windings 7 are in metal shell 11, semiconductor enamelled coating 12 is coated with in metal shell, housing 11 arbitrarily side is provided with the joint sleeve 1 of three band primary conductive bars 2, metal shell 11 arbitrarily side bottom is provided with secondary outgoing line end 12, primary conductive bar 2 connects high-tension fuse 4 one end through spring 3, high-tension fuse 4 other end connects a winding 7, two groups of windings are that VV is connected with the primary conductive bar in three joint sleeves, metal shell 11 side of high-tension fuse 4 other end is sealed with insulation plug 6, the block 5 of insulation plug 6 through being socketed on the high-tension fuse other end pushes against high-tension fuse 4, joint sleeve is connected on metal shell through insulated screw, insulated screw and housing equipotential link.
Claims (4)
1. the solid loop-net cabinet dedicated three-phase voltage transformer with protective device, comprise by the two group iron cores of epoxy resin encapsulated in metal shell, two groups of secondary winding and two groups of windings, any side of metal shell is provided with the joint sleeve of three band primary conductive bars, any side bottom of metal shell is provided with secondary outgoing line end, it is characterized in that: described primary conductive bar connects high-tension fuse one end through spring, the high-tension fuse other end connects a winding, the metal shell side of the high-tension fuse other end is sealed with insulation plug, the block of insulation plug through being socketed on the high-tension fuse other end pushes against high-tension fuse.
2. a kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device according to claim 1, is characterized in that: described two groups of windings are that VV is connected with the primary conductive bar in three joint sleeves.
3. a kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device according to claim 1, is characterized in that: be coated with semiconductor enamelled coating in described metal shell.
4. a kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device according to claim 1, is characterized in that: described joint sleeve is connected on metal shell through insulated screw, insulated screw and housing equipotential link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474426.0A CN104240930A (en) | 2014-09-18 | 2014-09-18 | Special three-phase voltage transformer with protective device for solid ring network cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474426.0A CN104240930A (en) | 2014-09-18 | 2014-09-18 | Special three-phase voltage transformer with protective device for solid ring network cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104240930A true CN104240930A (en) | 2014-12-24 |
Family
ID=52228832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410474426.0A Pending CN104240930A (en) | 2014-09-18 | 2014-09-18 | Special three-phase voltage transformer with protective device for solid ring network cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104240930A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957704A (en) * | 2016-07-06 | 2016-09-21 | 江苏科兴电器有限公司 | Three-phase grounded voltage transformer with metal shell |
| CN106783112A (en) * | 2017-02-28 | 2017-05-31 | 南通壹选工业设计有限公司 | A kind of dismountable voltage transformer |
| CN106910597A (en) * | 2017-02-28 | 2017-06-30 | 南通壹选工业设计有限公司 | A kind of transformer with radiating subassembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050045166A1 (en) * | 2003-08-27 | 2005-03-03 | Mitsubishi Denki Kabushiki Kaisha | Ignition coil apparatus for internal combustion engine |
| CN201780861U (en) * | 2010-07-22 | 2011-03-30 | 广西银河迪康电气有限公司 | High-voltage transformer |
| CN202034223U (en) * | 2011-03-08 | 2011-11-09 | 江苏科兴电器有限公司 | Three-phase potential transformer provided with a fuse and a metal case |
| CN202034225U (en) * | 2011-03-08 | 2011-11-09 | 江苏科兴电器有限公司 | Fully insulated plug-in type voltage transformer with metal shell |
| CN102368432A (en) * | 2011-03-08 | 2012-03-07 | 江苏科兴电器有限公司 | Semi-circular outer iron core epoxy cast voltage transformator with power supply winding |
| CN102723187A (en) * | 2012-07-10 | 2012-10-10 | 浙江天际互感器有限公司 | Voltage transformer with elbow-type plug |
| CN204117837U (en) * | 2014-09-18 | 2015-01-21 | 江苏科兴电器有限公司 | A kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device |
-
2014
- 2014-09-18 CN CN201410474426.0A patent/CN104240930A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050045166A1 (en) * | 2003-08-27 | 2005-03-03 | Mitsubishi Denki Kabushiki Kaisha | Ignition coil apparatus for internal combustion engine |
| CN201780861U (en) * | 2010-07-22 | 2011-03-30 | 广西银河迪康电气有限公司 | High-voltage transformer |
| CN202034223U (en) * | 2011-03-08 | 2011-11-09 | 江苏科兴电器有限公司 | Three-phase potential transformer provided with a fuse and a metal case |
| CN202034225U (en) * | 2011-03-08 | 2011-11-09 | 江苏科兴电器有限公司 | Fully insulated plug-in type voltage transformer with metal shell |
| CN102368432A (en) * | 2011-03-08 | 2012-03-07 | 江苏科兴电器有限公司 | Semi-circular outer iron core epoxy cast voltage transformator with power supply winding |
| CN102723187A (en) * | 2012-07-10 | 2012-10-10 | 浙江天际互感器有限公司 | Voltage transformer with elbow-type plug |
| CN204117837U (en) * | 2014-09-18 | 2015-01-21 | 江苏科兴电器有限公司 | A kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957704A (en) * | 2016-07-06 | 2016-09-21 | 江苏科兴电器有限公司 | Three-phase grounded voltage transformer with metal shell |
| CN106783112A (en) * | 2017-02-28 | 2017-05-31 | 南通壹选工业设计有限公司 | A kind of dismountable voltage transformer |
| CN106910597A (en) * | 2017-02-28 | 2017-06-30 | 南通壹选工业设计有限公司 | A kind of transformer with radiating subassembly |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141224 |
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| RJ01 | Rejection of invention patent application after publication |