CN201749778U - Current transformer - Google Patents
Current transformer Download PDFInfo
- Publication number
- CN201749778U CN201749778U CN2010201571676U CN201020157167U CN201749778U CN 201749778 U CN201749778 U CN 201749778U CN 2010201571676 U CN2010201571676 U CN 2010201571676U CN 201020157167 U CN201020157167 U CN 201020157167U CN 201749778 U CN201749778 U CN 201749778U
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- CN
- China
- Prior art keywords
- secondary coil
- conducting rod
- connection board
- connecting plate
- electrically connected
- 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 - Fee Related
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Abstract
A current transformer includes a secondary coil, an iron core, a conducting rod, a left connection board, a right connection board and a shell, the secondary coil is wound on the iron core, covered by an external insulating layer and sleeved on the conducting rod, and two ends of the conducting rod are electrically connected with the left connection board and the right connection board, respectively. The secondary coil, the iron core, the conducting rod, the left connection board and the right connection board are integrated together by epoxy resin casting, the upper end of the left connection board is connected with a left wiring board, and the upper end of the right connection board is connected with a right wiring board. The secondary coil is respectively connected with corresponding wiring terminals in a secondary terminal box, and the utility model has the advantages of small volume, light weight, good insulating performance, large output capacity of a secondary current, high precision level (0.23) and the like.
Description
Technical field
The utility model relates to a kind of instrument transformer, specifically is a kind of current transformer.
Background technology
Current transformer in use, the primary winding of current transformer is serially connected in the power circuit, and the external circuit of the secondary coil of current transformer is equipped with measuring instrument or power-off protection or automatic control equipment etc.The commercially available 9-40.5W2 of LZZBJ factory type current transformer is one of main accessory of power distribution cabinet at present, the power distribution cabinet of 35KV electric pressure particularly, the volume of its current transformer too little and and inferior capacity, accuracy class have all directly determined the size of power distribution cabinet volume, the current transformer volume that uses is big at present, the secondary output current capacity is less, the dynamic and thermal stability parameter is lower, and increased the volume of power distribution cabinet, at present because the quick growth of room rate, the urban land growing tension, dwindling the power distribution cabinet volume is the key point of saving the area, economize on the space, room.
The utility model content
The purpose of this utility model provides a kind of current transformer, and trade name is a LZZBJ9-40.5W2 type current transformer, and this current transformer volume is little, accuracy class is high, as the power distribution cabinet accessory, can dwindle the volume of power distribution cabinet significantly.
The technical scheme that adopts
A kind of current transformer, comprise secondary coil, iron core, conducting rod, left connecting plate, right connecting plate and pour mass, it is characterized in that described secondary coil winding is on iron core, the secondary coil bag is provided with external insulation layer, secondary coil is sleeved on the conducting rod, and the left end of conducting rod is electrically connected with left connecting plate, and the upper end of left connecting plate is electrically connected with left terminal block, the right-hand member of conducting rod is electrically connected with right connecting plate, and the upper end of left connecting plate is electrically connected with left terminal block; Pour mass is an epoxy resin poured body, and a plurality of epoxy resin full skirts are arranged on the outer wall of this epoxy resin poured body, and the pour mass lower surface is fixed on installs on the base plate; The secondary coil lead-in wire is connected with the corresponding wiring terminal of secondary terminal board respectively, and the secondary wire hole is arranged on the secondary terminal board.
The utlity model has that volume is little, in light weight, good insulation preformance, the secondary current output capacity is big, accuracy class is high (0.23), power distribution cabinet adopts the utility model can dwindle the power distribution cabinet volume significantly.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
A kind of current transformer comprises secondary coil 4, iron core 5, conducting rod 6, left connecting plate 10, right connecting plate 2 and pour mass 7.Secondary coil 4 windings are on iron core 5, secondary coil 4 bags are provided with external insulation layer 3, secondary coil 4 is sleeved on the conducting rod 6, the left end of conducting rod 6 is electrically connected with left connecting plate 10, the upper end of left side connecting plate 10 is electrically connected with left terminal block 8, the right-hand member of conducting rod 6 is electrically connected with right connecting plate 2, and the upper end of right connecting plate 2 is electrically connected with left terminal block 1; Pour mass 7 is an epoxy resin poured body, and a plurality of epoxy resin full skirts 11 are arranged on the outer wall of this epoxy resin poured body 7, and pour mass 7 lower surfaces are fixed on installs on the base plate 9; Secondary coil lead-in wire 12 connects with the corresponding connecting line terminal of secondary terminal board 13 respectively, and secondary wire hole 14 is arranged on the secondary terminal board 13.
Claims (1)
1. current transformer, comprise secondary coil (4), iron core (5), conducting rod (6), left side connecting plate (10), right connecting plate (2) and pour mass (7), it is characterized in that described secondary coil (4) winding is on iron core (5), secondary coil (4) bag is provided with external insulation layer (3), secondary coil (4) is sleeved on the conducting rod (6), the left end of conducting rod (6) is electrically connected with left connecting plate (10), the upper end of left side connecting plate (10) is electrically connected with left terminal block (8), the right-hand member of conducting rod (6) is electrically connected with right connecting plate (2), and the upper end of left connecting plate (10) is electrically connected with left terminal block (1); Pour mass (7) is an epoxy resin poured body, and a plurality of epoxy resin full skirts (11) are arranged on the outer wall of this epoxy resin poured body (7), and pour mass (7) lower surface is fixed on installs on the base plate (9); Secondary coil lead-in wire (12) is connected with the corresponding wiring terminal of secondary terminal board (13) respectively, and secondary wire hole (14) is arranged on the secondary terminal board (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201571676U CN201749778U (en) | 2010-04-13 | 2010-04-13 | Current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201571676U CN201749778U (en) | 2010-04-13 | 2010-04-13 | Current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201749778U true CN201749778U (en) | 2011-02-16 |
Family
ID=43584451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201571676U Expired - Fee Related CN201749778U (en) | 2010-04-13 | 2010-04-13 | Current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201749778U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118646A (en) * | 2015-09-18 | 2015-12-02 | 河南瑞特电气有限公司 | Epoxy resin pouring type 35kV current transformer |
| CN113687123A (en) * | 2021-08-27 | 2021-11-23 | 合肥科威尔电源系统股份有限公司 | Rogowski coil detection mechanism, detection device with Rogowski coil detection mechanism and detection method |
-
2010
- 2010-04-13 CN CN2010201571676U patent/CN201749778U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118646A (en) * | 2015-09-18 | 2015-12-02 | 河南瑞特电气有限公司 | Epoxy resin pouring type 35kV current transformer |
| CN113687123A (en) * | 2021-08-27 | 2021-11-23 | 合肥科威尔电源系统股份有限公司 | Rogowski coil detection mechanism, detection device with Rogowski coil detection mechanism and detection method |
| CN113687123B (en) * | 2021-08-27 | 2024-05-28 | 科威尔技术股份有限公司 | Rogowski coil detection mechanism, detection device with same and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20120413 |