CN204011026U - A kind of current transformer formula wall bushing - Google Patents
A kind of current transformer formula wall bushing Download PDFInfo
- Publication number
- CN204011026U CN204011026U CN201420436656.3U CN201420436656U CN204011026U CN 204011026 U CN204011026 U CN 204011026U CN 201420436656 U CN201420436656 U CN 201420436656U CN 204011026 U CN204011026 U CN 204011026U
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- CN
- China
- Prior art keywords
- current transformer
- conducting rod
- iron core
- core winding
- wall bushing
- 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
- 238000004804 winding Methods 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000009413 insulation Methods 0.000 claims abstract description 26
- 238000005266 casting Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000009826 distribution Methods 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000009466 transformation Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to electric equipment field, relates in particular to a kind of current transformer formula wall bushing.This wall bushing comprises conducting rod, insulation crust, iron core winding and secondary line tap, iron core winding is set on conducting rod, outside iron core winding and conducting rod, casting insulated material forms insulation crust, secondary line tap setting is connected on insulation crust and with iron core winding, because the diameter of conducting rod is little more than the diameter of cable, thereby form a straight-through current transformer structure that endoporus is less in the outside of conducting rod, wall bushing of the present utility model has had the function of current transformer, because straight-through current transformer structure endoporus is wherein less, it can meet the little no-load voltage ratio of current transformer on the one hand, large capacity and high-precision requirement, it has small volume on the other hand, the advantage that weight is lighter, can use in the ring main unit of small volume, can meet user uses upper flexibility and exploitativeness demand to little transformation ratio current transformer.
Description
Technical field
The utility model relates to electric equipment field, relates in particular to a kind of current transformer formula wall bushing.
Background technology
At present, in high-tension apparatus, wall bushing comprises conducting rod and insulation crust, conventionally by conducting rod, a cable is connected with high-tension apparatus (being specially distribution input or distribution output), to facilitate being connected of high-tension apparatus and a cable; In addition, on a cable, straight-through current transformer is set, to detect distribution curent change.
At present, in the high-tension apparatus of some engineering projects, for example, in ring main unit, usually need little no-load voltage ratio, large capacity, core-piercing current transformer with high precision detects electric current, if but existing straight-through current transformer meets little no-load voltage ratio, large capacity, high-precision requirement, because endoporus is larger, external diameter is less thereby have a bulky, the heavier and defect that involves great expense of weight.And existing ring main unit (as SF6 all-insulated ring network cabinet and solid loop-net cabinet) small volume, and cable warehouse is wherein long-pending also less, thereby existing little no-load voltage ratio, large capacity, high-precision straight-through current transformer is difficult to use in the ring main unit (as SF6 all-insulated ring network cabinet and solid loop-net cabinet) at small volume.
Therefore,, for above deficiency, the utility model provides a kind of current transformer formula wall bushing.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of current transformer formula wall bushing under the prerequisite of function that ensures its connection ring main unit and a cable, solves existing straight-through current transformer and be difficult to the problem using in the high-tension apparatus of small volume.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of current transformer formula wall bushing, and it comprises conducting rod, insulation crust, iron core winding and secondary line tap; One end of conducting rod is connected with a cable, and the other end is connected with distribution input or the distribution output of high-tension apparatus; Described iron core winding is set on conducting rod, and casting insulated material forms insulation crust outside iron core winding, conducting rod, and secondary line tap setting is connected on insulation crust and with iron core winding.
Wherein, the two ends of described conducting rod offer respectively the first threaded mounting hole and the second threaded mounting hole, described the first threaded mounting hole is equipped with the first screw so that a cable is connected on conducting rod, and described the second threaded mounting hole is equipped with the second screw so that distribution input or distribution output are connected on conducting rod.
Wherein, described secondary line tap comprises that at least one inlet wire tap and at least one go out wiretapping, described inlet wire tap and go out wiretapping and be separately positioned on the side of insulation crust, and be connected with inlet wire and the outlet of iron core winding respectively.
Wherein, described iron core winding comprises annular core and around the winding on iron core.
Wherein, described insulation crust outside is also provided with voltage sensor, and described voltage sensor is connected with the charged display device of ring main unit.
Wherein, described distribution output is copper bar.
(3) beneficial effect
Technique scheme tool of the present utility model has the following advantages: in the current transformer formula wall bushing that the utility model provides, iron core winding is set on conducting rod, outside iron core winding and conducting rod, casting insulated material forms insulation crust, secondary line tap setting is connected on insulation crust and with iron core winding, because the diameter of conducting rod is little more than the diameter of cable, thereby form a straight-through current transformer structure that endoporus is less in the outside of conducting rod, wall bushing of the present utility model has had the function of current transformer, because straight-through current transformer structure endoporus is wherein less, it can meet the little no-load voltage ratio of current transformer on the one hand, large capacity and high-precision requirement, it has small volume on the other hand, the advantage that weight is lighter, can use in the ring main unit of small volume, can meet user uses upper flexibility and exploitativeness demand to little transformation ratio current transformer.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the utility model embodiment current transformer formula wall bushing.
In figure, 1: insulation crust; 2: conducting rod; 3: iron core winding; 4: secondary line tap; 5: the first threaded mounting holes; 6: the second threaded mounting holes; 7: voltage sensor.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
In description of the present utility model, it will be appreciated that, term " on ", orientation or the position relationship of the instruction such as D score, " vertically ", " level ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
As shown in Figure 1, the current transformer formula wall bushing that the utility model provides comprises conducting rod 2, insulation crust 1, iron core winding 3 and secondary line tap 4; One end of conducting rod 2 is connected with a cable, and the other end is connected with distribution input or the distribution output of high-tension apparatus; Iron core winding 3 is set on conducting rod 2, and the endoporus of iron core winding 3 is consistent with the external diameter of conducting rod 2, and iron core winding 3, the conducting rod 2 casting insulated materials in outside form insulation crust 1, and secondary line tap 4 is arranged on insulation crust 1 and with iron core winding 3 and is connected.Wherein, distribution output is generally copper bar; Described iron core winding 3 comprises annular core and around the winding on annular core.
In technique scheme, iron core winding 3 is set on conducting rod 2, iron core winding 3 and the conducting rod 2 casting insulated materials in outside form insulation crust 1, secondary line tap 4 is arranged on insulation crust 1 and with iron core winding 3 and is connected, because the diameter of conducting rod 2 is little more than the diameter of cable, thereby form a straight-through current transformer structure that endoporus is less in the outside of conducting rod 2, wall bushing of the present utility model has had the function of current transformer, and straight-through current transformer structure is wherein meeting little no-load voltage ratio, large capacity, under the prerequisite of high-precision requirement, because endoporus is less, it can reach small volume, weight is lighter, lower-cost requirement, can use in the ring main unit of small volume, meet user uses flexibility above and exploitativeness demand to little transformation ratio current transformer.Meanwhile, together with iron core winding 3 is cast in by insulating material with conducting rod 2, greatly reduce the manufacturing cost of existing straight-through current transformer, there is good economic benefit and social benefit.
Further, the two ends of described conducting rod 2 offer respectively the first threaded mounting hole 5 and the second threaded mounting hole 6, described the first threaded mounting hole 5 is equipped with the first screw so that a cable is connected on conducting rod 2, and described the second threaded mounting hole 6 is equipped with the second screw so that distribution output is connected on conducting rod 2.Like this, can convenient and swiftly reliably a cable be connected on conducting rod 2, also can convenient and swiftly reliably distribution output be connected on conducting rod 2.
Particularly, described secondary line tap 4 comprises inlet wire tap and goes out wiretapping, described inlet wire tap and go out wiretapping and be separately positioned on the both sides of insulation crust 1, and be connected with inlet wire and the outlet of iron core winding 3 respectively, thereby the primary current communication that iron core winding 3 can be reacted is to corresponding display device.
Further, described insulation crust 1 outside is also provided with voltage sensor 7, and described voltage sensor 7 is connected with the charged display device of ring main unit, thereby can detect the change in voltage situation of a cable.
The current transformer formula wall bushing that the utility model provides is adding man-hour, iron core winding 3 in current transformer structure is through above conducting rod 2, again iron core winding 3 secondary lines are pressed in above secondary line tap 4, finally the iron core winding 3 being worn together, conducting rod 2 and secondary line tap 4 are cast in together, form wall bushing of the present utility model.
In sum, in the current transformer formula wall bushing that the utility model provides, iron core winding 3 is set on conducting rod 2, iron core winding 3 and the conducting rod 2 casting insulated materials in outside form insulation crust 1, secondary line tap 4 is arranged on insulation crust 1 and with iron core winding 3 and is connected, because the diameter of conducting rod 2 is little more than the diameter of cable, thereby form a straight-through current transformer structure that endoporus is less in the outside of conducting rod 2, wall bushing of the present utility model has had the function of current transformer, because straight-through current transformer structure endoporus is wherein less, it can meet the little no-load voltage ratio of current transformer on the one hand, large capacity and high-precision requirement, it has small volume on the other hand, the advantage that weight is lighter, can use in the ring main unit of small volume, can meet user uses upper flexibility and exploitativeness demand to little transformation ratio current transformer.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection range of the present utility model.
Claims (6)
1. a current transformer formula wall bushing, is characterized in that: it comprises conducting rod, insulation crust, iron core winding and secondary line tap; One end of conducting rod is connected with a cable, and the other end is connected with distribution input or the distribution output of high-tension apparatus; Described iron core winding is set on conducting rod, and casting insulated material forms insulation crust outside iron core winding, conducting rod, and secondary line tap setting is connected on insulation crust and with iron core winding.
2. current transformer formula wall bushing according to claim 1, it is characterized in that: the two ends of described conducting rod offer respectively the first threaded mounting hole and the second threaded mounting hole, described the first threaded mounting hole is equipped with the first screw so that a cable is connected on conducting rod, and described the second threaded mounting hole is equipped with the second screw so that distribution input or distribution output are connected on conducting rod.
3. current transformer formula wall bushing according to claim 1, it is characterized in that: described secondary line tap comprises that at least one inlet wire tap and at least one go out wiretapping, described inlet wire tap and go out wiretapping and be separately positioned on the side of insulation crust, and be connected with inlet wire and the outlet of iron core winding respectively.
4. current transformer formula wall bushing according to claim 1, is characterized in that: described iron core winding comprises annular core and around the winding on iron core.
5. current transformer formula wall bushing according to claim 1, is characterized in that: described insulation crust outside is also provided with voltage sensor, and described voltage sensor is connected with the charged display device of ring main unit.
6. current transformer formula wall bushing according to claim 1, is characterized in that: described distribution output is copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436656.3U CN204011026U (en) | 2014-08-04 | 2014-08-04 | A kind of current transformer formula wall bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436656.3U CN204011026U (en) | 2014-08-04 | 2014-08-04 | A kind of current transformer formula wall bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204011026U true CN204011026U (en) | 2014-12-10 |
Family
ID=52050989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420436656.3U Expired - Lifetime CN204011026U (en) | 2014-08-04 | 2014-08-04 | A kind of current transformer formula wall bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204011026U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200977A (en) * | 2014-08-04 | 2014-12-10 | 北京华电瑞通电力工程技术有限公司 | Current transformer type wall bushing |
| CN106300218A (en) * | 2016-08-25 | 2017-01-04 | 北京中车赛德铁道电气科技有限公司 | A kind of high tension cable plug-in and pull-off device with high-tension current inductor |
-
2014
- 2014-08-04 CN CN201420436656.3U patent/CN204011026U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200977A (en) * | 2014-08-04 | 2014-12-10 | 北京华电瑞通电力工程技术有限公司 | Current transformer type wall bushing |
| CN106300218A (en) * | 2016-08-25 | 2017-01-04 | 北京中车赛德铁道电气科技有限公司 | A kind of high tension cable plug-in and pull-off device with high-tension current inductor |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |