CN109378201A - The current transformer of 35kV or less an epoxy resin pouring tap of band - Google Patents
The current transformer of 35kV or less an epoxy resin pouring tap of band Download PDFInfo
- Publication number
- CN109378201A CN109378201A CN201811406765.XA CN201811406765A CN109378201A CN 109378201 A CN109378201 A CN 109378201A CN 201811406765 A CN201811406765 A CN 201811406765A CN 109378201 A CN109378201 A CN 109378201A
- Authority
- CN
- China
- Prior art keywords
- winding
- groups
- secondary winding
- outlet terminal
- epoxy resin
- 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.)
- Withdrawn
Links
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 12
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [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
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a kind of current transformers of tap of 35kV or less epoxy resin pouring band；Including shell, first winding and secondary winding；The first winding and secondary winding is all mounted on housing cavity, and once winding, the outlet terminal of first winding and the outlet terminal of secondary winding are separately mounted on the outer wall of shell in secondary winding；The first winding has two groups, and for two groups of first windings respectively there are two outlet terminal, four outlet terminals of two groups of first windings can distinguish serial or parallel connection.Since the present invention has two groups of first windings and tool there are four the outlet terminal of first winding, by the series-parallel of four outlet terminals, different no-load voltage ratios is realized, so that the switching at primary connection end is very convenient.
Description
Technical field
The present invention relates to a kind of current transformers, once take out more particularly to a kind of 35kV or less epoxy resin pouring band
The current transformer of head.
Background technique
Used 35kV and following epoxy resin pouring current transformer in existing country's network system, according to tap
It is all secondary winding tap, such as S1, S2, S3, wherein S2 terminal is a small change as centre tap, when meeting S1 and S2
Than corresponding to a large velocity ratio when meeting S1 and S3.Existing scheme is Current Transformer Secondary tap, i.e., in coiling secondary coil
A centre cap is pulled out, this mode switches tap eaily situation at secondary outgoing line switchgear.But have
Switch cabinet structure it is not applicable for secondary tap mode, when encountering capacity upgrading and needing to be changed to large velocity ratio, secondary tap portions
Switching is inconvenient, if but it is just more convenient accordingly in the switching of primary connection end, so needing to invent a kind of 35kV or less epoxy
The current transformer of tap of resin filled type band.
Summary of the invention
The purpose of the present invention is to provide a kind of taps of 35kV or less epoxy resin pouring band of easy switching
Current transformer.
To achieve the above object, the technical solution of the invention is as follows:
The present invention is a kind of current transformer of tap of 35kV or less epoxy resin pouring band；Including shell, once around
Group and secondary winding；The first winding and secondary winding is all mounted on housing cavity, once winding in secondary winding, and one
The outlet terminal of secondary winding and the outlet terminal of secondary winding are separately mounted on the outer wall of shell；The first winding has two
Group, for two groups of first windings respectively there are two outlet terminal, four outlet terminals of two groups of first windings can distinguish serial or parallel connection.
Four outlet terminals of two groups of first windings are separately mounted to the top surface of shell, the leading-out terminal of secondary winding
Son is separately mounted on the side wall of lower part of the housing.
The first winding is formed by copper sheet coiling.
After adopting the above scheme, since the present invention has two groups of first windings and tool, there are four the leading-out terminals of first winding
Son realizes different no-load voltage ratios, so that the switching at primary connection end is very convenient by the series-parallel of four outlet terminals.In addition,
Design of the invention is particularly suitable for inner space than narrow 35kV or less epoxy resin pouring current transformer.By dividing
At two-way coiling primary coil, four terminals are formed, are added by precisely, cleverly carrying out interior design (bending, coiling etc.)
To realize.
The present invention is further illustrated in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is front view of the invention；
Fig. 2 is top view of the invention；
Fig. 3 is side view of the invention；
Fig. 4 is the front view of Inside coil of the present invention；
Fig. 5 is the top view of Inside coil of the present invention；
Fig. 6 is the side view of Inside coil of the present invention；
Fig. 7 is circuit diagram of the invention.
Specific embodiment
As shown in Fig. 1-Fig. 7, the present invention is a kind of Current Mutual Inductance of tap of 35kV or less epoxy resin pouring band
Device；Including shell 1, first winding 2 and secondary winding 3.
The first winding 2 and secondary winding 3 is all mounted on 1 inner cavity of shell, once winding 2 in secondary winding 3, and one
The outlet terminal of secondary winding 2 and the outlet terminal of secondary winding 3 are separately mounted on the outer wall of shell 1.
The first winding 2 has two groups, two groups of first windings 21,22 respectively there are two outlet terminal, one group once around
The outlet terminal of group 21 is C1, P2, and the outlet terminal of another group of first winding 22 is C2, P1, the four of two groups of first windings 21,22
A outlet terminal P1, P2, C1, C2 can distinguish serial or parallel connection.In the present embodiment, the first winding by copper sheet coiling and
At.
Four outlet terminals P1, P2, C1, C2 of two groups of first windings 21,22 are separately mounted to the top of shell 1
Face, outlet terminal 1S1,1S2,2S1,2S2 of secondary winding 3 are separately mounted on the side wall of 1 lower part of shell.
The working principle of the invention:
Outlet terminal C1, P2 of first group of first winding 21 can go here and there with outlet terminal C2, P1 of second group of first winding 22 respectively
Connection is in parallel, forms different no-load voltage ratios, specifically: C1 and C2 is shorted, the end P1 electric current flows into, at this moment electric current outflow in the end P2 can
Obtain a low current ratio；
P1 and C1 is shorted or P2 and C2 is shorted, and the end P1 electric current flows into, at this moment electric current outflow in the end P2 can obtain a high current ratio.
When using structure of the invention, only need in 1 top surface of shell in the transformation of switchgear capacity to first winding 21,22
Outlet terminal carries out the corresponding variation for being shorted and electric current ratio can be realized.
The above is only the preferred embodiment of the present invention, therefore cannot be limited the scope of implementation of the present invention with this, i.e., according to
Equivalent changes and modifications made by scope of the present invention patent and description should still belong to the model that the invention patent covers
In enclosing.
Claims (3)
1. a kind of current transformer of tap of 35kV or less epoxy resin pouring band；Including shell, first winding and two
Secondary winding；The first winding and secondary winding is all mounted on housing cavity, once winding in secondary winding, first winding
Outlet terminal and the outlet terminal of secondary winding be separately mounted on the outer wall of shell；It is characterized by: it is described it is primary around
Group has two groups, and respectively there are two outlet terminal, four outlet terminals of two groups of first windings can connect two groups of first windings respectively
Or it is in parallel.
2. the current transformer of tap of 35kV or less epoxy resin pouring band according to claim 1, feature
Be: four outlet terminals of two groups of first windings are separately mounted to the top surface of shell, the outlet terminal of secondary winding
It is separately mounted on the side wall of lower part of the housing.
3. the current transformer of tap of 35kV or less epoxy resin pouring band according to claim 1, feature
Be: the first winding is formed by copper sheet coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406765.XA CN109378201A (en) | 2018-11-23 | 2018-11-23 | The current transformer of 35kV or less an epoxy resin pouring tap of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406765.XA CN109378201A (en) | 2018-11-23 | 2018-11-23 | The current transformer of 35kV or less an epoxy resin pouring tap of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109378201A true CN109378201A (en) | 2019-02-22 |
Family
ID=65383486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811406765.XA Withdrawn CN109378201A (en) | 2018-11-23 | 2018-11-23 | The current transformer of 35kV or less an epoxy resin pouring tap of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109378201A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201489989U (en) * | 2009-08-21 | 2010-05-26 | 四川金成铭电器有限责任公司 | Multi-purpose totally closed voltage transformer |
| CN201904204U (en) * | 2010-11-09 | 2011-07-20 | 大连华亿电力电器有限公司 | Novel current transformer |
| CN203013495U (en) * | 2012-08-30 | 2013-06-19 | 江苏靖江互感器厂有限公司 | Current transformer |
| CN203910514U (en) * | 2014-06-24 | 2014-10-29 | 华东控股集团温州电气有限公司 | Oil-immersed current transformer |
| CN104701003A (en) * | 2015-03-24 | 2015-06-10 | 山东钢铁股份有限公司 | Electric connection loop of current transformer |
| CN207165408U (en) * | 2017-09-08 | 2018-03-30 | 信电电器集团有限公司 | Large Copacity power type voltage transformer |
| CN207800346U (en) * | 2018-01-04 | 2018-08-31 | 河北弘业电气有限公司 | Double transformation ratio current transformers |
| CN209029231U (en) * | 2018-11-23 | 2019-06-25 | 厦门大一互科技有限公司 | The current transformer of 35kV or less an epoxy resin pouring tap of band |
-
2018
- 2018-11-23 CN CN201811406765.XA patent/CN109378201A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201489989U (en) * | 2009-08-21 | 2010-05-26 | 四川金成铭电器有限责任公司 | Multi-purpose totally closed voltage transformer |
| CN201904204U (en) * | 2010-11-09 | 2011-07-20 | 大连华亿电力电器有限公司 | Novel current transformer |
| CN203013495U (en) * | 2012-08-30 | 2013-06-19 | 江苏靖江互感器厂有限公司 | Current transformer |
| CN203910514U (en) * | 2014-06-24 | 2014-10-29 | 华东控股集团温州电气有限公司 | Oil-immersed current transformer |
| CN104701003A (en) * | 2015-03-24 | 2015-06-10 | 山东钢铁股份有限公司 | Electric connection loop of current transformer |
| CN207165408U (en) * | 2017-09-08 | 2018-03-30 | 信电电器集团有限公司 | Large Copacity power type voltage transformer |
| CN207800346U (en) * | 2018-01-04 | 2018-08-31 | 河北弘业电气有限公司 | Double transformation ratio current transformers |
| CN209029231U (en) * | 2018-11-23 | 2019-06-25 | 厦门大一互科技有限公司 | The current transformer of 35kV or less an epoxy resin pouring tap of band |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190222 |
|
| WW01 | Invention patent application withdrawn after publication |