CN103354161B - High-voltage mutual inductor - Google Patents
High-voltage mutual inductor Download PDFInfo
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- CN103354161B CN103354161B CN201310335016.3A CN201310335016A CN103354161B CN 103354161 B CN103354161 B CN 103354161B CN 201310335016 A CN201310335016 A CN 201310335016A CN 103354161 B CN103354161 B CN 103354161B
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- out terminal
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- mutual inductor
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Abstract
The invention discloses a kind of high-voltage mutual inductor, comprise insulation shell, three high pressure primary connection terminals, two low-pressure secondary outlet terminals, three residual voltage secondary outlet terminals, zero-sequence current lead-out terminal, capacitor voltage divider, band torch, three secondary power supply transformation instrument transformers, zero sequence current mutual inductors; The leading-out terminal of the secondary line bag of each secondary power supply transformation instrument transformer is connected with the end of incoming cables of a capacitor voltage divider respectively, and wherein the leading-out terminal of two secondary line bags is also connected with a low-pressure secondary outlet terminal respectively, the leading-out terminal of each capacitor voltage divider is connected with a corresponding residual voltage secondary outlet terminal; The leading-out terminal of zero sequence current mutual inductor secondary winding is connected with zero-sequence current lead-out terminal.The present invention can use as zero sequential potential transformer, can use again, have multi-functional advantage as common step-down voltage instrument transformer.
Description
Technical field
The invention belongs to high voltage electrical apparatus technical field, be specifically related to a kind of high-voltage mutual inductor.
Background technology
Existing High-Voltage Electrical Appliances, its creepage protection function adopts zero sequence current mutual inductor to realize.Existing zero sequence current mutual inductor, volume is comparatively large, and function is comparatively single, and its structure remains is needing improvements badly.
Summary of the invention
The object of this invention is to provide one can the diversified high-voltage mutual inductor of practical function.
The technical scheme realizing the object of the invention is: a kind of high-voltage mutual inductor, comprise insulation shell, and be arranged on three high pressure primary connection terminals on insulation shell, two low-pressure secondary outlet terminals, three residual voltage secondary outlet terminals and zero-sequence current lead-out terminals; Also be provided with in insulation shell three capacitor voltage dividers, three band torches be connected with each high pressure primary connection terminal, three be set in secondary power supply transformation instrument transformer on each band torch, one be set in three simultaneously and be with zero sequence current mutual inductor on torch; Each secondary power supply transformation instrument transformer comprises iron core, primary line bag and secondary line bag, the leading-out terminal of the secondary line bag of each secondary power supply transformation instrument transformer is connected with the end of incoming cables of a capacitor voltage divider respectively, and wherein the leading-out terminal of the secondary line bag of two secondary power supply transformation instrument transformers is also connected with a low-pressure secondary outlet terminal respectively, the leading-out terminal of each capacitor voltage divider is connected with a corresponding residual voltage secondary outlet terminal; Zero sequence current mutual inductor comprises zero sequence iron core, a winding and secondary winding, and the leading-out terminal of zero sequence current mutual inductor secondary winding is connected with zero-sequence current lead-out terminal.
The present invention can use as zero sequential potential transformer, can use again, have multi-functional advantage as common step-down voltage instrument transformer.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is a kind of end view of high-voltage mutual inductor shown in Fig. 1;
Fig. 3 is a kind of upward view of high-voltage mutual inductor shown in Fig. 1;
Fig. 4 is a kind of internal structure schematic diagram of high-voltage mutual inductor shown in Fig. 1;
Fig. 5 is a kind of end view of high-voltage mutual inductor shown in Fig. 4.
Embodiment
(embodiment 1)
The present embodiment is a kind of high-voltage mutual inductor, see shown in Fig. 1 to Fig. 5, comprise insulation shell 1, and three high pressure primary connection terminals, 2, two low-pressure secondary outlet terminals, 3, three the residual voltage secondary outlet terminals 4 be arranged on insulation shell and a zero-sequence current lead-out terminal 5; It is characterized in that: be also provided with 7, three, the band torch secondary power supply transformation instrument transformer 8, be set on each band torch that three capacitor voltage dividers 6, three are connected with each high pressure primary connection terminal in insulation shell and be set in three simultaneously and be with zero sequence current mutual inductor 9 on torch; Each secondary power supply transformation instrument transformer comprises iron core 81, primary line bag 82 and secondary line bag 83, the leading-out terminal of the secondary line bag of each secondary power supply transformation instrument transformer is connected with the end of incoming cables of a capacitor voltage divider respectively, and wherein the leading-out terminal of the secondary line bag of two secondary power supply transformation instrument transformers is also connected with a low-pressure secondary outlet terminal respectively, the leading-out terminal of each capacitor voltage divider is connected with a corresponding residual voltage secondary outlet terminal; Zero sequence current mutual inductor comprises zero sequence iron core 91, winding 92 and secondary winding 93, and the leading-out terminal of zero sequence current mutual inductor secondary winding is connected with zero-sequence current lead-out terminal.
The present embodiment can use as zero sequential potential transformer, can use again, have multi-functional advantage as common step-down voltage instrument transformer.In addition owing to adopting capacitor voltage divider dividing potential drop, existing good protected effect, can obtain again comparatively accurate each phase residual voltage, thus realizes zero-sequenceprotection function comparatively reliably.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.
Claims (1)
1. a high-voltage mutual inductor, comprise insulation shell (1), and be arranged on three high pressure primary connection terminals (2) on insulation shell, two low-pressure secondary outlet terminals (3), three residual voltage secondary outlet terminals (4) and zero-sequence current lead-out terminals (5); It is characterized in that: be also provided with in insulation shell three capacitor voltage dividers (6), three band torches (7) be connected with each high pressure primary connection terminal, three be set in secondary power supply transformation instrument transformer (8) on each band torch, one be set in three simultaneously and be with zero sequence current mutual inductor (9) on torch; Each secondary power supply transformation instrument transformer comprises iron core (81), primary line bag (82) and secondary line bag (83), the leading-out terminal of the secondary line bag of each secondary power supply transformation instrument transformer is connected with the end of incoming cables of a capacitor voltage divider respectively, and wherein the leading-out terminal of the secondary line bag of two secondary power supply transformation instrument transformers is also connected with a low-pressure secondary outlet terminal respectively, the leading-out terminal of each capacitor voltage divider is connected with a corresponding residual voltage secondary outlet terminal; Each capacitor voltage divider is positioned at the below of secondary power supply transformation instrument transformer (8) and zero sequence current mutual inductor (9); Zero sequence current mutual inductor comprises zero sequence iron core (91), a winding (92) and secondary winding (93), and the leading-out terminal of zero sequence current mutual inductor secondary winding is connected with zero-sequence current lead-out terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310335016.3A CN103354161B (en) | 2013-08-02 | 2013-08-02 | High-voltage mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310335016.3A CN103354161B (en) | 2013-08-02 | 2013-08-02 | High-voltage mutual inductor |
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| Publication Number | Publication Date |
|---|---|
| CN103354161A CN103354161A (en) | 2013-10-16 |
| CN103354161B true CN103354161B (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310335016.3A Active CN103354161B (en) | 2013-08-02 | 2013-08-02 | High-voltage mutual inductor |
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| CN (1) | CN103354161B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632823B (en) * | 2013-12-06 | 2016-09-28 | 国家电网公司 | A kind of double-air-gap core electronic current transformer |
| EP4271057A1 (en) | 2015-01-27 | 2023-11-01 | Taissa Research LLC | Method for transmitting d2d discovery signal by terminal in wireless communication system and terminal using same method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202534498U (en) * | 2012-03-07 | 2012-11-14 | 北京瑞奇恩互感器设备有限公司 | Three-phase-in-one-piece electronic type current voltage transformer |
| CN103076481A (en) * | 2012-12-26 | 2013-05-01 | 北京科锐配电自动化股份有限公司 | Three-phase integrated electronic transformer |
| CN203481031U (en) * | 2013-08-02 | 2014-03-12 | 乐清市风杰电子科技有限公司 | High-voltage transformer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3266003B2 (en) * | 1996-09-06 | 2002-03-18 | 松下電器産業株式会社 | Ground fault detector |
| JP4912563B2 (en) * | 2003-09-02 | 2012-04-11 | マルチ計測器株式会社 | Split track type zero phase current transformer |
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2013
- 2013-08-02 CN CN201310335016.3A patent/CN103354161B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202534498U (en) * | 2012-03-07 | 2012-11-14 | 北京瑞奇恩互感器设备有限公司 | Three-phase-in-one-piece electronic type current voltage transformer |
| CN103076481A (en) * | 2012-12-26 | 2013-05-01 | 北京科锐配电自动化股份有限公司 | Three-phase integrated electronic transformer |
| CN203481031U (en) * | 2013-08-02 | 2014-03-12 | 乐清市风杰电子科技有限公司 | High-voltage transformer |
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| CN103354161A (en) | 2013-10-16 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Wenzhong Inventor after: Li Ning Inventor after: Huang Dongdong Inventor after: Gu Hongbo Inventor before: Hu Xiaoqing |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151203 Address after: 830011 the Xinjiang Uygur Autonomous Region high tech Industrial Development Zone (new city), Changchun Road, No. East Road, No. two, No. 66 Applicant after: Electric Power Research Institute, State Grid Xinjiang Electric Power Company Applicant after: NANJING DANDICK ELECTRIC INSTRUMENT CO., LTD. Address before: 215026, Jiangsu, Suzhou Industrial Park, South Cross bumper harvest Plaza, 1, 809 Applicant before: Suzhou Beitengte Electronic Technology Co., Ltd. |