CN204215890U - Current transformer - Google Patents
Current transformer Download PDFInfo
- Publication number
- CN204215890U CN204215890U CN201420606326.4U CN201420606326U CN204215890U CN 204215890 U CN204215890 U CN 204215890U CN 201420606326 U CN201420606326 U CN 201420606326U CN 204215890 U CN204215890 U CN 204215890U
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- CN
- China
- Prior art keywords
- primary line
- insulator foot
- pedestal
- hole
- embedded
- 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
The utility model relates to a kind of current transformer.Comprise primary line, around the secondary coil being arranged on primary line periphery, primary line and secondary coil are all embedded in insulating material, insulating material comprises insulator foot, is installed in the insulation boss of insulator foot upper end, primary line and secondary coil are all embedded in insulation boss, the insulator foot departing from insulation boss is provided with pedestal through hole, the axis of pedestal through hole is parallel with primary line, be embedded with the lead-out wire be connected on primary line in insulator foot, the terminals of a lead-out wire are arranged in pedestal through hole.This current transformer structure is reasonable, lightweight, shock-resistant, anticorrosive, good insulation preformance, after coordinating the combination of L-type distribution box, distribution box can be made to leave the upper table surface of transformer, away from high-voltage charged body, improves security performance.
Description
technical field
The utility model relates to a kind of current transformer.
background technology
In order to ensure power system security economical operation, monitoring and measuring must be carried out to the ruuning situation of power equipment.But general measurement and protective device directly can not access a high-tension apparatus, and need the big current scaling transformation of primary system to become small area analysis, supply measuring instrument and protective device use.Current transformer just plays unsteady flow and electrical isolation effect.It is the transducer that in electric power system, the secondary device such as measuring instrument, relaying protection obtains electrical primary loop current information; current transformer converts high electric current to low current in proportion; current transformer primary side is connected on primary system, secondary side joint measuring instrument, relaying protection etc.Current transformer principle is according to electromagnetic induction principle.Current transformer is made up of the iron core closed and winding.Its umber of turn is little, and go here and there in the circuit needing the electric current measured, therefore it often has whole electric currents of circuit to flow through, and secondary winding turn ratio is more, is serially connected in measuring instrument and protective loop.Existing current transformer due to structural design unreasonable, install and use procedure in be subject to various restriction.
summary of the invention
The purpose of this utility model solves the problems of the technologies described above, and provides a kind of current transformer rational in infrastructure, easy to install and use.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows: current transformer described in the utility model comprises primary line, around the secondary coil and the iron core that are arranged on primary line periphery, primary line and secondary coil and iron core are all embedded in insulating material, it is characterized in that: described insulating material comprises insulator foot, be installed in the insulation boss of insulator foot upper end, described primary line and secondary coil and iron core are all embedded in insulation boss, the insulator foot departing from insulation boss is provided with pedestal through hole, the axis of described pedestal through hole is parallel with primary line, the lead-out wire be connected on primary line is embedded with in insulator foot, the terminals of a described lead-out wire are arranged in pedestal through hole.
The upper end of described insulator foot is with the fin around pedestal through hole, and the upper end of described insulation boss is provided with cylindrical dielectric block, and described collets are fitted with terminal block, and described terminal block is electrically connected with primary line.
This current transformer structure is reasonable, lightweight, shock-resistant, anticorrosive, good insulation preformance, after coordinating the combination of L-type distribution box, distribution box can be made to leave the upper table surface of transformer, away from high-voltage charged body, improves security performance.
accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the utility model embodiment.
Fig. 2 is the vertical view of Fig. 1 embodiment.
embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, current transformer described in the utility model comprises primary line 1, around the secondary coil 2 and the iron core that are arranged on primary line 1 periphery, primary line 1 and secondary coil 2 and iron core are all embedded in insulating material, described insulating material comprises insulator foot 31, be installed in the insulation boss 32 of insulator foot 31 upper end, described primary line 1 and secondary coil 2 and iron core are all embedded in insulation boss 32, the insulator foot 31 departing from insulation boss 32 is provided with pedestal through hole 33, the axis of described pedestal through hole 33 is parallel with primary line 1, the lead-out wire 11 be connected on primary line 1 is embedded with in insulator foot 31, the terminals of a described lead-out wire 11 are arranged in pedestal through hole 33.
The upper end of described insulator foot 31 is with the fin 4 around pedestal through hole 33, and the upper end of described insulation boss 32 is provided with cylindrical dielectric block 5, and described collets 5 are fitted with terminal block 6, and described terminal block 6 is electrically connected with primary line 1.
In using, high-pressure side accesses from terminal block 6, and draw from the terminals of a lead-out wire 11, secondary coil 2 induced current is connected to low-pressure end electric equipment.Collets 5 are the creepage distance that can also increase high pressure incoming end while terminal block 6 provides support, and improve insulation property; Arranging of fin 4 can avoid rainwater to flow to through hole 33, the terminals of a lead-out wire 11 is kept dry, can improve insulation property equally.High-pressure side is arranged into and out of the L shape that line is parallel to each other is convenient to installation and maintenance.
Claims (2)
1. current transformer, comprise primary line (1), around being arranged on the peripheral secondary coil (2) of primary line (1) and iron core, primary line (1) and secondary coil (2) and iron core are all embedded in insulating material, it is characterized in that: described insulating material comprises insulator foot (31), be installed in the insulation boss (32) of insulator foot (31) upper end, described primary line (1) and secondary coil (2) and iron core are all embedded in insulation boss (32), the insulator foot (31) departing from insulation boss (32) is provided with pedestal through hole (33), the axis of described pedestal through hole (33) is parallel with primary line (1), the lead-out wire (11) be connected on primary line (1) is embedded with in insulator foot (31), the terminals of a described lead-out wire (11) are arranged in pedestal through hole (33).
2. current transformer according to claim 1, it is characterized in that: the upper end of described insulator foot (31) is with the fin (4) around pedestal through hole (33), the upper end of described insulation boss (32) is provided with cylindrical dielectric block (5), described collets (5) are fitted with terminal block (6), described terminal block (6) is electrically connected with primary line (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420606326.4U CN204215890U (en) | 2014-10-21 | 2014-10-21 | Current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420606326.4U CN204215890U (en) | 2014-10-21 | 2014-10-21 | Current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215890U true CN204215890U (en) | 2015-03-18 |
Family
ID=52984539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420606326.4U Expired - Fee Related CN204215890U (en) | 2014-10-21 | 2014-10-21 | Current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204215890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275065A (en) * | 2017-08-13 | 2017-10-20 | 安徽君华舜义恩佳非晶材料有限公司 | It is a kind of to be easily installed the current transformer used |
| CN108922747A (en) * | 2018-07-17 | 2018-11-30 | 河南森源电气股份有限公司 | Current transformer |
-
2014
- 2014-10-21 CN CN201420606326.4U patent/CN204215890U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275065A (en) * | 2017-08-13 | 2017-10-20 | 安徽君华舜义恩佳非晶材料有限公司 | It is a kind of to be easily installed the current transformer used |
| CN107275065B (en) * | 2017-08-13 | 2019-04-23 | 北京北斗银河科技有限公司 | It is a kind of to be easily installed the current transformer used |
| CN108922747A (en) * | 2018-07-17 | 2018-11-30 | 河南森源电气股份有限公司 | Current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20171021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |