CN204117837U - A kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device - Google Patents
A kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device Download PDFInfo
- Publication number
- CN204117837U CN204117837U CN201420534475.4U CN201420534475U CN204117837U CN 204117837 U CN204117837 U CN 204117837U CN 201420534475 U CN201420534475 U CN 201420534475U CN 204117837 U CN204117837 U CN 204117837U
- Authority
- CN
- China
- Prior art keywords
- metal shell
- tension fuse
- voltage transformer
- protective device
- phase voltage
- 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 - Lifetime
Links
- 239000007787 solid Substances 0.000 title claims abstract description 18
- 230000001681 protective effect Effects 0.000 title claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 238000004804 winding Methods 0.000 claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 239000003822 epoxy resin Substances 0.000 claims abstract description 8
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to 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, 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.
Description
Technical field
The utility model 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 utility model solves above problem, provides that a kind of volume is little, insulation is reliable, the solid loop-net cabinet dedicated three-phase voltage transformer of band protective device.
The technical solution of the utility model 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 beneficial effects of the utility model are: 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 the utility model structural representation;
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 |
|---|---|---|---|
| CN201420534475.4U CN204117837U (en) | 2014-09-18 | 2014-09-18 | A kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534475.4U CN204117837U (en) | 2014-09-18 | 2014-09-18 | A kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204117837U true CN204117837U (en) | 2015-01-21 |
Family
ID=52335125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420534475.4U Expired - Lifetime CN204117837U (en) | 2014-09-18 | 2014-09-18 | A kind of solid loop-net cabinet dedicated three-phase voltage transformer with protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204117837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240930A (en) * | 2014-09-18 | 2014-12-24 | 江苏科兴电器有限公司 | Special three-phase voltage transformer with protective device for solid ring network cabinet |
-
2014
- 2014-09-18 CN CN201420534475.4U patent/CN204117837U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240930A (en) * | 2014-09-18 | 2014-12-24 | 江苏科兴电器有限公司 | Special three-phase voltage transformer with protective device for solid ring network cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150121 |