CN108711501B - Casting tool for current transformer - Google Patents
Casting tool for current transformer Download PDFInfo
- Publication number
- CN108711501B CN108711501B CN201810433446.1A CN201810433446A CN108711501B CN 108711501 B CN108711501 B CN 108711501B CN 201810433446 A CN201810433446 A CN 201810433446A CN 108711501 B CN108711501 B CN 108711501B
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- China
- Prior art keywords
- wiring cover
- fixing
- current transformer
- transformer
- secondary wiring
- 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.)
- Active
Links
- 238000005266 casting Methods 0.000 title claims abstract description 31
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 9
- 239000003822 epoxy resin Substances 0.000 description 9
- 229920000647 polyepoxide Polymers 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/005—Impregnating or encapsulating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention relates to the technical field of transformers, in particular to a casting tool for a current transformer. The current transformer pouring tool comprises a fixing seat which is fixedly arranged relative to a transformer shell of the current transformer, and a wiring cover fixing structure which is fixedly connected with a secondary wiring cover of the current transformer so that the secondary wiring cover is kept at a fixed position of the transformer shell is arranged on the fixing seat. The fixing base is relatively fixed relative to the position of the transformer shell to be poured, the wiring cover fixing structure and the fixing base can not be randomly displaced in the pouring process, the position of the secondary wiring cover matched with the wiring cover fixing structure is guaranteed to be fixed until pouring is completed in the pouring process, the fixed connection of the secondary wiring cover and the transformer shell is realized, the secondary wiring cover is supported in the pouring process by means of a tool, the secondary wiring cover is not required to be adhered to the shell, the consistency and the yield of products are guaranteed, the working efficiency is improved, and the manual investment is reduced.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a casting tool for a current transformer.
Background
When the current transformer is assembled, the coil is fixed in the transformer shell by adopting an epoxy resin pouring mode, and in the transformer assembled by adopting the mode, the secondary wiring cover is generally bonded with the transformer shell by adopting glue, however, the bonding mode has certain defects, such as the fact that a worker needs to press a contact surface for a long time by hand during bonding until the secondary wiring cover is firmly bonded, and the production efficiency is low; if the bonding is not firm, cracking phenomenon occurs, so that the secondary wiring cover is inclined, and glue is easy to spill on the surface of the shell in the bonding process, thereby influencing the appearance quality of the product; the secondary wiring cover is adhered to the transformer shell by using a manual method, so that a great deal of manpower and material resources are wasted.
Disclosure of Invention
The invention aims to provide a pouring tool for a current transformer, which solves the problem that manpower and material resources are wasted when pouring the current transformer in the prior art.
In order to achieve the above purpose, the current transformer pouring tool provided by the invention adopts the following technical scheme:
the utility model provides a current transformer pouring frock, is provided with the wiring cover fixed knot of the secondary wiring cover fixed connection so that secondary wiring cover keeps the wiring cover fixed knot at the fixed position of transformer casing including being used for the fixing base of the mutual-inductor casing fixed setting for current transformer on the fixing base.
The beneficial effects are that: the current transformer pouring frock includes fixing base and the wiring cover fixed knot who sets up on the fixing base constructs, the fixing base is fixed relatively for the position of the mutual-inductor casing that will pour, can guarantee wiring cover fixed knot constructs and fixing base can not random displacement at the pouring in-process, thereby guaranteed to accomplish solidification at pouring in-process position with wiring cover fixed knot constructs complex secondary wiring cover, realize the fixed connection of secondary wiring cover and mutual-inductor casing, because rely on the frock to support the secondary wiring cover in the pouring in-process again, do not need to adhere the secondary wiring cover on the casing, the uniformity and the yields of product have been guaranteed, the efficiency of work has been improved, and artificial input has been reduced.
Further, the fixing base is provided with a fixing base positioning structure which is fixedly connected with the transformer shell so as to fix the fixing base relative to the transformer shell of the current transformer.
The beneficial effects are that: be provided with on the fixing base with mutual-inductor casing fixed connection's fixing base location structure, can guarantee that the relative position of fixing base and mutual-inductor casing can not change in the pouring process, guaranteed the accuracy of secondary wiring cover position.
Further, the fixing base is provided with a connecting part which is used for being connected with a cylindrical barrel which is arranged in the middle of the transformer shell and is used for being surrounded by a coil, and the fixing base positioning structure is arranged on the connecting part.
The beneficial effects are that: the transformer is characterized in that a cylindrical barrel is arranged in the transformer shell, the connecting part of the fixing seat is connected with the cylindrical barrel, the original size of the transformer shell is directly utilized for processing and mounting, the secondary processing of the transformer shell is reduced, the strength of the transformer shell is guaranteed, when the coil is mounted in the transformer shell, the inner diameter of the coil is too small to generate extrusion deformation on the cylindrical barrel, the connecting part is correspondingly arranged at the cylindrical barrel, a supporting force resisting the extrusion force of the coil can be generated on the barrel, and the appearance of the transformer shell is guaranteed.
Further, the fixing seat comprises a plug-in part used for being positioned and inserted in the cylindrical barrel, and the connecting part is formed by the plug-in part.
The beneficial effects are that: the fixing seat is inserted in the cylindrical barrel through the positioning of the inserting part, the operation is simple, and the matching relationship is stable.
Further, the fixing seat comprises a disc-shaped main body, and a stop step used for being in stop fit with the end face of the cylindrical barrel is arranged on the outer peripheral face of the main body.
The beneficial effects are that: be provided with the fender step in discoid main part, can rely on self structure to fix on the mutual-inductor casing to there is not fixed connection's structure between disc and the mutual-inductor casing, the disc can be directly torn down from the mutual-inductor casing to the technician when accomplishing the pouring, and the technician of being convenient for carries out the dismouting.
Further, the fixing base further comprises a connecting arm which is arranged in a hanging mode, and the wiring cover fixing structure is arranged at the hanging end of the connecting arm.
The beneficial effects are that: the wiring cover fixed knot constructs and sets up on the overhanging end of linking arm, and the secondary wiring cover is hung through the linking arm and is stretched into the pouring space that needs to pour, and the activity space of linking arm is great to the secondary wiring cover is located the below of linking arm all the time at the in-process of pouring, has guaranteed that the pouring can not produce the influence to the linking arm.
Further, the wire housing fixing structure is a bolt through hole formed in the overhanging end of the connecting arm.
The beneficial effects are that: the wiring cover fixing structure is provided with bolt through holes, the secondary wiring cover can be detachably connected to the connecting arm by using bolts, and after casting is completed, the secondary wiring cover and the transformer shell are fixed by means of epoxy resin, and the secondary wiring cover can be directly taken down from the connecting arm so as to facilitate the next assembly work.
Furthermore, the connecting arm is a fixing strip which is detachably connected to the fixing seat.
The beneficial effects are that: the connecting arm is arranged into the fixing strip, the structure is simple, the realization of technicians is facilitated, the fixing base is detachably connected with the fixing strip, and after casting is completed, the fixing base and the fixing strip can be disassembled and assembled, so that the occupied area of the tool is reduced.
Further, a positioning piece is arranged on the fixing strip and provided with a positioning surface for being matched with the secondary wiring cover in a positioning way.
The beneficial effects are that: the locating piece is arranged on the fixing strip, the locating piece is provided with a locating surface matched with the secondary wiring cover, when the secondary wiring cover is detachably connected to the fixing strip, the secondary wiring cover can be located and connected by means of the locating surface, and the locating piece is arranged to ensure that the position of the secondary wiring cover is kept to be certain.
Drawings
FIG. 1 is a schematic diagram showing the relationship between the current transformer casting tool of the embodiment 1 and a transformer;
FIG. 2 is a top view showing the assembly relationship between the current transformer casting tool of example 1 and the transformer;
FIG. 3 is a cross-sectional view of the transformer housing of example 1 of the current transformer casting tooling of the present invention;
fig. 4 is a top view of a transformer housing in embodiment 1 of the current transformer casting tool of the present invention;
FIG. 5 is a cross-sectional view of a secondary wiring cover in example 1 of a casting tool for a current transformer in the present invention;
FIG. 6 is a top view of a secondary wiring cover in example 1 of a casting tool for a current transformer according to the present invention;
FIG. 7 is a top view of a disk in example 1 of a casting tool for a current transformer according to the present invention;
FIG. 8 is a cross-sectional view of a disk in example 1 of a current transformer casting tool of the present invention;
fig. 9 is a schematic structural diagram of a fixing strip in embodiment 1 of a casting tool for a current transformer in the present invention;
FIG. 10 is a top view of the assembly relationship between a current transformer casting tool of example 2 and a transformer in the present invention;
fig. 11 is a top view showing the assembly relationship between the current transformer casting tool of embodiment 3 of the present invention and the transformer.
In the figure: 1. a transformer housing; 11. casting space; 12. an inner cavity; 2. a coil; 3. a disc; 31. a step; 32. perforating the disc; 4. a fixing strip; 41. perforating the fixing strip; 42. a screw hole; 43. a positioning piece; 5. a secondary wiring cover; 51. secondary wiring cover holes; 6. an epoxy resin; 7. a bolt A;8. a bolt B;9. an integral disc; 10. a chuck.
Detailed Description
As shown in fig. 1 to 9, embodiment 1 of a casting tool for a current transformer in the present invention is as follows: the current transformer that needs to pour into a mould encapsulation includes transformer housing 1 and sets up coil 2 in transformer housing 1, and when current transformer encapsulates, current transformer's secondary wiring cover 5 passes through the fixed pouring space 11 that sets up in transformer housing 1 of pouring frock, can be together fixed secondary wiring cover 5 and transformer housing 1 when epoxy 6 is full of pouring space 11. The current transformer pouring tool comprises two parts, namely a fixing seat and a wiring cover fixing structure, wherein the fixing seat is fixed on the fixing seat and is fixed on the mutual inductor shell, the wiring cover fixing structure is fixedly connected with a secondary wiring cover of the current transformer, the secondary wiring cover is fixed in a pouring space for pouring in the mutual inductor shell, and after the pouring of the mutual inductor is completed, the secondary wiring cover is connected with the mutual inductor shell through epoxy resin to form a whole.
In order to guarantee the relative positional relationship of fixing base and mutual-inductor casing, be provided with fixing base location structure on the fixing base, can guarantee the positional relationship of fixing base and mutual-inductor casing in the pouring process, wherein, the form of fixing base sets up to disc 3, including a cylindrical barrel around in coil 2 in mutual-inductor casing 1, the opening at the inner chamber 12 of barrel is the inner chamber hole, and the radial dimension and the size adaptation of inner chamber hole of disc 3, make disc 3 cover establish in the inner chamber hole, and be provided with on disc 3 can with the terminal surface of inner chamber hole block complex step 31, the technicians of being convenient for install disc 3 on the inner chamber hole and take out from the inner chamber hole. And can appear the internal diameter size undersize of coil 2 and extrude inner chamber 12, lead to the problem of mutual-inductor casing 1 deformation when the mutual-inductor is assembled, and disc 3 sets up in the inner chamber downthehole can support inner chamber 12, and when the chamber wall of inner chamber 12 receives the extrusion, disc 3 can give the chamber wall of inner chamber 12 a reaction force in order to resist the extrusion force of coil.
The connection arm that is provided with the overhang setting on the fixing base, and wiring cover fixed knot constructs and sets up on the overhanging end of connection arm, the concrete structure of connection arm is with fixing strap 4 of fixing base i.e. disc 3 releasable connection, be provided with as wiring cover fixed knot construct's screw 42 in the one end of fixing strap 4, wear to be equipped with as screw fastener's bolt B8 in screw 42, set up on secondary wiring cover 5 with bolt B8 complex secondary wiring cover hole 51, be used for with current transformer's secondary wiring cover 5 releasable connection, and be provided with corresponding disc perforation 32 and fixing strap perforation 41 on disc 3 and fixing strap 4, be equipped with the bolt A7 that realizes disc 3 and fixing strap 4 releasable connection in two perforation interpolation, when not needing the frock, can carry out dismouting with disc 3 and fixing strap 4 in order to reduce occupation of land space. The fixing strip 4 is further provided with a locating piece 43, the locating piece 43 can be located between the secondary wiring cover 5 and the disc 3 when the fixing strip 4 is installed on the disc 3, one side, close to the secondary wiring cover 5, of the locating piece 43 is provided with a locating surface matched with the outer surface of the secondary wiring cover 5 in a locating mode, and when the secondary wiring cover 5 is fixed on the fixing strip 4, the relative position of the secondary wiring cover 5 relative to the disc 3 and the transformer shell 1 can be guaranteed.
When a technician uses the transformer pouring tool to fix the secondary wiring cover 5, the disc 3 and the fixing strip 4 are detachably connected, the disc 3 can support and fix the fixing strip 4, the stability of the fixing strip 4 is kept, then the secondary wiring cover 5 is connected to the fixing strip 4 through bolts, the disc 3 is arranged on an inner cavity hole of the transformer shell 1, and the fixing strip 4 realizes that the secondary wiring cover 5 is suspended in the space provided with a coil for pouring in the transformer shell 1 through the support of the disc 3.
After the position of the secondary wiring cover 5 is adjusted in place, the epoxy resin 6 is poured into the pouring space 11 of the transformer housing 1, the epoxy resin 6 encapsulates the coil 2 in the pouring space 11, and along with the pouring, the epoxy resin 6 diffuses to a high position, because the secondary wiring cover 5 is suspended at the upper part of the pouring space 11 through the fixing strip 4, the epoxy resin 6 contacts with the secondary wiring cover 5, and the secondary wiring cover 5 and the transformer housing 1 are fixed into a whole. In the casting process, technicians do not need to use a manual mode to connect the secondary wiring cover 5 with the transformer shell 1, and the stability of connection and the consistency of product size can be ensured because the secondary wiring cover 5 is fixed by the fixing strip 4, so that the yield is improved. After the casting is completed, the technician removes the disc 3 and the fixing strip 4 from the transformer housing 1, and the next product can be assembled after cleaning the surfaces of the disc 3 and the fixing strip 4.
As shown in fig. 10, embodiment 2 of the transformer casting tool in the present invention is: the difference from the above embodiment is only that the disc structure is used as the fixing seat, in this example, the disc and the fixing strip are set as an integral disc 9 with an integral structure, so that the connection relationship between the disc and the fixing strip is reduced, and the connection strength of the tool is improved.
As shown in fig. 11, embodiment 3 of the transformer casting tool in the present invention is: the difference from the above embodiment is only that the disc structure as the fixing seat, in this example, the fixing seat may be set as the chuck 10, and the area for blocking the inner cavity of the transformer housing is reduced except for the area for supporting and fixing the fixing strip on the chuck 10, and only a part of the supporting part for supporting the inner cavity wall is arranged on the chuck 10, so that the chuck 10 can generate a supporting force for resisting deformation on the inner cavity wall.
In other embodiments, the fixing base can be replaced by other forms, for example, the fixing base is a bracket which is not in contact with the transformer shell, the relative position between the bracket and the transformer shell is not changed, and the fixing strip connected with the bracket can also keep the fixing support of the secondary wiring cover in the casting process, so that the secondary wiring cover is kept in a certain position until the casting is cured.
In other embodiments, the fixing base can be replaced by other forms, for example, the fixing base is arranged into a cylinder matched with the cylindrical barrel in the transformer shell, a fixing strip is arranged on the cylinder, the cylinder serving as the fixing base can be directly inserted into the cylindrical barrel when casting is performed, the contact area between the cylinder and the cylindrical barrel is larger, the stability is better, the supporting force of the cylinder on the transformer shell is larger, and the deformation preventing effect is better.
In other embodiments, the mating relationship between the fixing strip and the secondary wiring cover may be replaced by other forms, for example, the fixing strip is set to be a strip for clamping the secondary wiring cover along the horizontal direction, and the epoxy resin is controlled not to adhere to the strip during casting.
In other embodiments, the fixing base may take other forms, for example, a cover plate covering the transformer housing is provided with a connecting arm to fixedly connect the secondary connection cover.
The foregoing description of the embodiments provides further details of the present invention with regard to its objects, advantages and benefits, it should be understood that the above description is only illustrative of the invention and is not intended to limit the scope of the invention, but any modifications, equivalents, improvements, etc. within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (5)
1. Current transformer pouring frock, its characterized in that: the wiring cover fixing structure is used for fixing the wiring cover fixing structure relative to the transformer shell of the current transformer, and the wiring cover fixing structure is used for fixedly connecting the secondary wiring cover of the current transformer so as to enable the secondary wiring cover to be kept at the fixed position of the transformer shell; the fixed seat is provided with a fixed seat positioning structure which is fixedly connected with the transformer shell so as to fix the fixed seat relative to the transformer shell of the current transformer; the fixing seat is provided with a connecting part used for being connected with a cylindrical barrel which is arranged in the middle of the transformer shell and is used for being surrounded by a coil, and the fixing seat positioning structure is arranged on the connecting part; the fixing seat comprises an inserting part used for being positioned and inserted in the cylindrical barrel body, and the connecting part is formed by the inserting part; the fixing seat further comprises a connecting arm which is arranged in a hanging mode, and the wiring cover fixing structure is arranged at the hanging end of the connecting arm.
2. The current transformer casting tooling of claim 1, wherein: the fixing seat comprises a disc-shaped main body, and a stop step used for being in stop fit with the end face of the cylindrical barrel is arranged on the outer peripheral surface of the main body.
3. The current transformer casting tool according to claim 1 or 2, wherein: the wire housing fixing structure is a bolt perforation arranged at the overhanging end of the connecting arm.
4. A current transformer casting tooling according to claim 3, wherein: the connecting arm is a fixing strip detachably connected to the fixing base.
5. The current transformer casting tooling of claim 4, wherein: the fixing strip is provided with a locating piece, and the locating piece is provided with a locating surface for locating and matching with the secondary wiring cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433446.1A CN108711501B (en) | 2018-05-08 | 2018-05-08 | Casting tool for current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433446.1A CN108711501B (en) | 2018-05-08 | 2018-05-08 | Casting tool for current transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108711501A CN108711501A (en) | 2018-10-26 |
| CN108711501B true CN108711501B (en) | 2024-01-19 |
Family
ID=63868745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810433446.1A Active CN108711501B (en) | 2018-05-08 | 2018-05-08 | Casting tool for current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108711501B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117577443B (en) * | 2024-01-16 | 2024-04-02 | 淄博速悦电子有限公司 | Combined current transformer and preparation process thereof |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1031353A (en) * | 1962-03-21 | 1966-06-02 | Ass Elect Ind | Improvements relating to terminal boxes for electrical apparatus |
| DE3321721A1 (en) * | 1983-06-16 | 1984-12-20 | Vogt Gmbh & Co Kg, 8391 Erlau | Universal potting housing for annular-core inductors and annular-core transformers |
| CN1307727A (en) * | 1998-07-27 | 2001-08-08 | 西门子公司 | Switching device with housing bottom as a sub-assembly and corresponding production method |
| CN201036153Y (en) * | 2007-04-30 | 2008-03-12 | 大连北方互感器有限公司 | Backbone type bus current mutual inductor |
| CN201307516Y (en) * | 2008-11-20 | 2009-09-09 | 厦门大一互科技有限公司 | Mounting structure of secondary wiring cover and wiring box of current transformer |
| CN201336218Y (en) * | 2009-01-19 | 2009-10-28 | 浙江天际互感器有限公司 | Voltage-current combined type transformer for high pressure measurement |
| CN201408639Y (en) * | 2009-01-19 | 2010-02-17 | 浙江天际互感器有限公司 | Indoor semi-closed single-phase potential transformer |
| JP2012063286A (en) * | 2010-09-17 | 2012-03-29 | Ngk Spark Plug Co Ltd | Gas sensor unit |
| CN202373444U (en) * | 2011-07-28 | 2012-08-08 | 大连金业电力设备有限公司 | Indoor reinforcing imported-technique post type current transformer |
| CN202816646U (en) * | 2012-08-01 | 2013-03-20 | 保定市水木电器设备有限公司 | Current transformer casting tooling clamp |
| CN105428046A (en) * | 2015-11-23 | 2016-03-23 | 河南平芝高压开关有限公司 | GIS externally-mounted current transformer |
| CN205542361U (en) * | 2016-01-19 | 2016-08-31 | 常州欧瑞电气股份有限公司 | Voltage transformer with equalizer ring |
| CN106373767A (en) * | 2016-10-13 | 2017-02-01 | 河南平高通用电气有限公司 | Pouring type current transformer body fixed mount and pouring mold using same |
| CN208093359U (en) * | 2018-05-08 | 2018-11-13 | 河南森源电气股份有限公司 | A kind of current transformer cast tooling |
-
2018
- 2018-05-08 CN CN201810433446.1A patent/CN108711501B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1031353A (en) * | 1962-03-21 | 1966-06-02 | Ass Elect Ind | Improvements relating to terminal boxes for electrical apparatus |
| DE3321721A1 (en) * | 1983-06-16 | 1984-12-20 | Vogt Gmbh & Co Kg, 8391 Erlau | Universal potting housing for annular-core inductors and annular-core transformers |
| CN1307727A (en) * | 1998-07-27 | 2001-08-08 | 西门子公司 | Switching device with housing bottom as a sub-assembly and corresponding production method |
| CN201036153Y (en) * | 2007-04-30 | 2008-03-12 | 大连北方互感器有限公司 | Backbone type bus current mutual inductor |
| CN201307516Y (en) * | 2008-11-20 | 2009-09-09 | 厦门大一互科技有限公司 | Mounting structure of secondary wiring cover and wiring box of current transformer |
| CN201336218Y (en) * | 2009-01-19 | 2009-10-28 | 浙江天际互感器有限公司 | Voltage-current combined type transformer for high pressure measurement |
| CN201408639Y (en) * | 2009-01-19 | 2010-02-17 | 浙江天际互感器有限公司 | Indoor semi-closed single-phase potential transformer |
| JP2012063286A (en) * | 2010-09-17 | 2012-03-29 | Ngk Spark Plug Co Ltd | Gas sensor unit |
| CN202373444U (en) * | 2011-07-28 | 2012-08-08 | 大连金业电力设备有限公司 | Indoor reinforcing imported-technique post type current transformer |
| CN202816646U (en) * | 2012-08-01 | 2013-03-20 | 保定市水木电器设备有限公司 | Current transformer casting tooling clamp |
| CN105428046A (en) * | 2015-11-23 | 2016-03-23 | 河南平芝高压开关有限公司 | GIS externally-mounted current transformer |
| CN205542361U (en) * | 2016-01-19 | 2016-08-31 | 常州欧瑞电气股份有限公司 | Voltage transformer with equalizer ring |
| CN106373767A (en) * | 2016-10-13 | 2017-02-01 | 河南平高通用电气有限公司 | Pouring type current transformer body fixed mount and pouring mold using same |
| CN208093359U (en) * | 2018-05-08 | 2018-11-13 | 河南森源电气股份有限公司 | A kind of current transformer cast tooling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108711501A (en) | 2018-10-26 |
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