CN202749216U - Discharge-preventing shielding device for current transformer - Google Patents
Discharge-preventing shielding device for current transformer Download PDFInfo
- Publication number
- CN202749216U CN202749216U CN 201220312784 CN201220312784U CN202749216U CN 202749216 U CN202749216 U CN 202749216U CN 201220312784 CN201220312784 CN 201220312784 CN 201220312784 U CN201220312784 U CN 201220312784U CN 202749216 U CN202749216 U CN 202749216U
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- current transformer
- discharge
- semiconductor layer
- connecting line
- terminal
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Abstract
The utility model aims at providing a discharge-preventing shielding device for a current transformer. According to the technical scheme, the discharge-preventing shielding device for the current transformer comprises a primary terminal and a semiconductor layer, and is characterized in that the primary terminal is connected with the semiconductor layer through a connecting line. The discharge-preventing shielding device has the beneficial effects that according to the discharge-preventing shielding device for the current transformer, a high-voltage end of the primary terminal is in equal potential connection with the semiconductor layer, the discharge of the high-voltage end on the low-voltage end is reduced, the floating potential in an electric field is eliminated, and a shielding function is realized.
Description
Technical field
The utility model relates to the current transformer technical field, relates in particular to the anti-discharge screening arrangement of a kind of current transformer.
Background technology
The current transformer principle is according to electromagnetic induction principle.Current transformer is comprised of iron core and the winding of closure.Its umber of turn seldom; string is in the circuit of the electric current that needs are measured; therefore it often has whole electric currents of circuit to flow through; the secondary winding turn ratio is more; be serially connected in measuring instrument and the protection loop, current transformer is when work, and its 2 minor loops are closed all the time; therefore the impedance of measuring instrument and protection loop series coil is very little, and the operating state of current transformer is near short circuit.
Current transformer often can produce floating potential between a terminal of process of working and semiconductor layer; in the course of work of current transformer near short circuit; the generation of floating potential just means that high-pressure side is to the discharge of low-pressure end; this discharge not only can affect the normal operation of equipment; when serious even can cause the damage of equipment, and then cause major accident.
The utility model content
Problem to be solved in the utility model provides the anti-discharge screening arrangement of a kind of current transformer.
The technical solution of the utility model is as follows: the anti-discharge screening arrangement of a kind of current transformer, comprise terminal and semiconductor layer, and it is characterized in that a described terminal is connected connecting line with semiconductor layer and connects.
Further, be provided with semiconducting paper in the described semiconductor layer, the two ends of described connecting line connect respectively terminal and semiconducting paper.
Further, described connecting line is annealed copper strand wire.
Further, described connecting line is not exposed outside with the part that terminal is connected with semiconductor layer, and the length of exposed connecting line is not less than 10mm, is not more than 12mm.
Further again, connecting line expose part include insulating tape.
The beneficial effects of the utility model are: the anti-discharge screening arrangement of current transformer is connected with the semiconductor layer equipotential by the high-pressure side that makes a terminal, has reduced the discharge of high-pressure side to low-pressure end, has eliminated the floating potential in the electric field, has played shielding action.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein: 1, terminal, 2, semiconductor layer,
3, connecting line.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is made brief description.
As shown in Figure 1, the anti-discharge screening arrangement of a kind of current transformer comprises terminal 1 and semiconductor layer 2, is provided with semiconducting paper in the described semiconductor layer 2, and the two ends of described connecting line connect respectively terminal 1 and semiconductor layer 2.Are connected the part that is connected with semiconductor layer not exposed outside with terminal 1 for described connecting line 3, and the length of exposed connecting line 3 is not less than 10mm, is not more than 12mm.Described connecting line 3 is annealed copper strand wire, connecting line 3 expose part include insulating tape.
Working method: the two ends of connecting line 3 are connected respectively in terminal 1 and the semiconductor layer 2.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (5)
1. anti-discharge screening arrangement of current transformer comprises terminal and semiconductor layer, it is characterized in that a described terminal is connected connecting line with semiconductor layer and connects.
2. the anti-discharge screening arrangement of described current transformer according to claim 1 is characterized in that being provided with semiconducting paper in the described semiconductor layer, and the two ends of described connecting line connect respectively terminal and semiconducting paper.
3. the anti-discharge screening arrangement of described current transformer according to claim 1 is characterized in that described connecting line is annealed copper strand wire.
4. the anti-discharge screening arrangement of described current transformer according to claim 1 is characterized in that described connecting line is not exposed outside with the part that terminal is connected with semiconductor layer, and the length of exposed connecting line is not less than 10mm, is not more than 12mm.
5. the anti-discharge screening arrangement of described current transformer according to claim 4, it is characterized in that connecting line expose part include insulating tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312784 CN202749216U (en) | 2012-06-29 | 2012-06-29 | Discharge-preventing shielding device for current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312784 CN202749216U (en) | 2012-06-29 | 2012-06-29 | Discharge-preventing shielding device for current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202749216U true CN202749216U (en) | 2013-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220312784 Expired - Fee Related CN202749216U (en) | 2012-06-29 | 2012-06-29 | Discharge-preventing shielding device for current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202749216U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104936409A (en) * | 2015-07-02 | 2015-09-23 | 许继电气股份有限公司 | Push-and-pull module guide rail and module assembly |
| CN104955308A (en) * | 2015-07-02 | 2015-09-30 | 许继电气股份有限公司 | Push-pull type module support beam and module assembly |
| CN104992828A (en) * | 2015-08-06 | 2015-10-21 | 河南森源电气股份有限公司 | Low-partial-discharge-value single-structure-based mutual inductor and manufacturing method thereof |
| CN106653328A (en) * | 2016-12-16 | 2017-05-10 | 广东四会互感器厂有限公司 | Primary terminal voltage-balancing structure of current transformer |
| CN109346302A (en) * | 2018-12-03 | 2019-02-15 | 大连北方互感器集团有限公司 | A kind of voltage transformer shielded with high-tension shielding and low pressure |
-
2012
- 2012-06-29 CN CN 201220312784 patent/CN202749216U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104936409A (en) * | 2015-07-02 | 2015-09-23 | 许继电气股份有限公司 | Push-and-pull module guide rail and module assembly |
| CN104955308A (en) * | 2015-07-02 | 2015-09-30 | 许继电气股份有限公司 | Push-pull type module support beam and module assembly |
| CN104992828A (en) * | 2015-08-06 | 2015-10-21 | 河南森源电气股份有限公司 | Low-partial-discharge-value single-structure-based mutual inductor and manufacturing method thereof |
| CN106653328A (en) * | 2016-12-16 | 2017-05-10 | 广东四会互感器厂有限公司 | Primary terminal voltage-balancing structure of current transformer |
| CN106653328B (en) * | 2016-12-16 | 2017-12-12 | 广东四会互感器厂有限公司 | Equal laminated structure of terminal of current transformer |
| CN109346302A (en) * | 2018-12-03 | 2019-02-15 | 大连北方互感器集团有限公司 | A kind of voltage transformer shielded with high-tension shielding and low pressure |
| CN109346302B (en) * | 2018-12-03 | 2023-08-08 | 大连北方互感器集团有限公司 | Voltage transformer with high-voltage shielding and low-voltage shielding |
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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: 20130220 Termination date: 20130629 |