CN203607239U - Current transformer special for outdoor 10 kv column switch - Google Patents
Current transformer special for outdoor 10 kv column switch Download PDFInfo
- Publication number
- CN203607239U CN203607239U CN201320821716.9U CN201320821716U CN203607239U CN 203607239 U CN203607239 U CN 203607239U CN 201320821716 U CN201320821716 U CN 201320821716U CN 203607239 U CN203607239 U CN 203607239U
- Authority
- CN
- China
- Prior art keywords
- winding
- outgoing line
- line pipe
- outdoor
- secondary outgoing
- 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 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003822 epoxy resin Substances 0.000 claims abstract description 4
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 4
- 230000001012 protector Effects 0.000 claims description 10
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
A current transformer special for an outdoor 10 kv column switch is composed of a primary winding, a secondary winding, an insulating protecting body, a secondary outgoing line and a secondary outgoing line pipe, wherein the primary winding is a cylindrical conductive rod, a secondary coil is directly wound on a ring-shaped iron core to form the secondary winding, and the cylindrical first winding and the ring-shaped secondary winding are distributed coaxially. The secondary outgoing line is led out of the L-shaped secondary outgoing line pipe, and the primary winding, the secondary winding and one end of the L-shaped secondary outgoing line pipe are sealed in the insulating protecting body which is formed by epoxy resin in a vacuum pouring mode.
Description
Technical field
The utility model relates to the convertor equipment in electric power system, concretely, relates to a kind of 10kV outdoor pole top switch current mutual inductor special.
Background technology
At present, 10kV outdoor pole top switch Current Transformer is bus-type structure, without a winding, a bus in system is directly through the secondary winding of instrument transformer, and the problem that this structure exists has: a little less than bearing the ability of dynamic and thermal stability electric current, precision is low, inconvenience is installed, and creepage distance is little.
Summary of the invention
The purpose of this utility model is to provide a kind of 10kV outdoor pole top switch current mutual inductor special, and its precision is high, and partial discharge quantity is little, easy for installation, and creepage distance is large, and the ability of bearing dynamic and thermal stability electric current is strong.
The utility model solves the technical scheme that its technical problem adopts: it is made up of winding, secondary winding, insulating protector, secondary outgoing line, a secondary outgoing line pipe; A winding is columniform conducting rod; secondary winding goes out secondary coil by direct coiling on annular iron core and forms; the secondary winding of a columniform winding and annular coaxially distributes; secondary outgoing line is drawn through the secondary outgoing line pipe inside of " L " shape, and epoxide resin vacuum is poured into a mould in the insulating protector forming is encapsulated in one end of winding, secondary winding and " L " shape secondary outgoing line pipe.
The purpose of this utility model also can further realize by following technical proposals.
Five umbrellas that size is alternate are arranged at insulating protector bottom.
The built-in screw thread in cylindrical conductive bar two ends of a winding.
The beneficial effects of the utility model are: one time winding is the built-in screw thread of cylindrical conductive bar and two ends that conductivity is high, connect more reliable, convenience with the bus in system, and the ability of bearing dynamic and thermal stability electric current is strong.Iron core adopts the good annular ultramicro-crystal alloy of magnetic property, has improved the precision of product, makes metering and protection more accurate.
The secondary winding of a columniform winding and annular coaxially distributes, and space layout is reasonable, and electric-field intensity distribution is even, and the partial discharge quantity of product is little.
Five umbrellas that size is alternate are arranged at insulating protector bottom, have strengthened the creepage distance of product, make its anti-pollution ability strong.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is front view of the present utility model.
1. secondary coils in figure, 2. iron core, 3. screw thread, a 4. winding, 5. insulating protector, 6. umbrella, 7. secondary outgoing line pipe, 8. secondary outgoing line.
Embodiment
In the embodiment shown in fig. 1; a winding (4) is columniform conducting rod; secondary winding goes out secondary coil (1) by the upper direct coiling of annular iron core (2) and forms; a columniform winding (4) coaxially distributes with the secondary winding of annular; secondary outgoing line (8) is drawn through secondary outgoing line pipe (7) inside of " L " shape, and epoxide resin vacuum is poured into a mould in the insulating protector (5) forming is encapsulated in one end of a winding (4), secondary winding and " L " shape secondary outgoing line pipe (7).
Five umbrellas (6) that size is alternate are arranged at insulating protector (5) bottom.
The built-in screw threads in cylindrical conductive bar two ends (3) of a winding (4).
Claims (3)
1. a 10kV outdoor pole top switch current mutual inductor special, it is by a winding, secondary winding, insulating protector, secondary outgoing line, secondary outgoing line pipe composition, it is characterized in that: a winding is columniform conducting rod, secondary winding goes out secondary coil by direct coiling on annular iron core and forms, the secondary winding of a columniform winding and annular coaxially distributes, secondary outgoing line is drawn through the secondary outgoing line pipe inside of " L " shape, epoxide resin vacuum is poured into a mould the insulating protector forming by a winding, in one end of secondary winding and " L " shape secondary outgoing line pipe is encapsulated in.
2. 10kV outdoor pole top switch current mutual inductor special according to claim 1, is characterized in that: five umbrellas that size is alternate are arranged at described insulating protector bottom.
3. 10kV outdoor pole top switch current mutual inductor special according to claim 1, is characterized in that: the built-in screw thread in cylindrical conductive bar two ends of a winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821716.9U CN203607239U (en) | 2013-12-06 | 2013-12-06 | Current transformer special for outdoor 10 kv column switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821716.9U CN203607239U (en) | 2013-12-06 | 2013-12-06 | Current transformer special for outdoor 10 kv column switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203607239U true CN203607239U (en) | 2014-05-21 |
Family
ID=50719903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320821716.9U Expired - Lifetime CN203607239U (en) | 2013-12-06 | 2013-12-06 | Current transformer special for outdoor 10 kv column switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203607239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946026A (en) * | 2017-11-21 | 2018-04-20 | 保定天威互感器有限公司 | A kind of transformer external current mutual inductor |
-
2013
- 2013-12-06 CN CN201320821716.9U patent/CN203607239U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946026A (en) * | 2017-11-21 | 2018-04-20 | 保定天威互感器有限公司 | A kind of transformer external current mutual 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 |
Granted publication date: 20140521 |
|
| CX01 | Expiry of patent term |