CN203481029U - High voltage mutual inductor - Google Patents
High voltage mutual inductor Download PDFInfo
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- CN203481029U CN203481029U CN201320470296.4U CN201320470296U CN203481029U CN 203481029 U CN203481029 U CN 203481029U CN 201320470296 U CN201320470296 U CN 201320470296U CN 203481029 U CN203481029 U CN 203481029U
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- voltage
- power supply
- mutual inductor
- wire outlet
- secondary power
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Abstract
The utility model discloses a high voltage mutual inductor which comprises an insulating shell, three high voltage first binding posts, two low voltage secondary wire outlet terminals and three zero sequence voltage secondary wire outlet terminals all arranged on the insulating shell, wherein three capacitance voltage dividers, three charged rods and three secondary power supply voltage transformation mutual inductors are further arranged in the insulating shell; the three charged rods are connected with the three high voltage first binding posts respectively; the three charged rods are sleeved with the three secondary power supply voltage transformation mutual inductors; each of the secondary power supply voltage transformation mutual inductors comprises an iron core, a first solenoid and a secondary solenoid; the wire outlet ends of the secondary solenoids are connected with the wire inlet ends of the capacitance voltage dividers respectively; the wire outlet ends of the secondary solenoids of the two secondary power supply voltage transformation mutual inductors are connected with one of the low voltage secondary wire outlet terminals; the wire outlet ends of the capacitance voltage dividers are connected with corresponding zero sequence voltage secondary wire outlet terminals. The high voltage mutual inductor can be used as both a zero sequence voltage mutual inductor and a common voltage reduction voltage mutual inductor, and has the advantage of multi-functions.
Description
Technical field
The utility model belongs to high voltage electrical apparatus technical field, is 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 larger, and function is comparatively single, and its structure remains is needing improvements badly.
Utility model content
The purpose of this utility model be to provide a kind of can the diversified high-voltage mutual inductor of practical function.
The technical scheme that realizes the utility model object is: a kind of high-voltage mutual inductor, comprises insulation shell, and be arranged on three high pressure primary connection terminals on insulation shell, two low-pressure secondary outlet terminals and three residual voltage secondary outlet terminals; What in insulation shell, be also provided with that three capacitor voltage dividers, three are connected with each high pressure primary connection terminal is set in respectively with the secondary power supply transformation instrument transformer on torch with torch and three; 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.
The utility model can be used as zero sequential potential transformer, can use as common step-down voltage instrument transformer again, has multi-functional advantage.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the utility model the first structure;
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;
Fig. 6 is a kind of structural representation of the utility model the second structure;
Fig. 7 is a kind of end view of high-voltage mutual inductor shown in Fig. 6;
Fig. 8 is a kind of internal structure schematic diagram of high-voltage mutual inductor shown in Fig. 6;
Fig. 9 is a kind of end view of high-voltage mutual inductor shown in Fig. 8.
Embodiment
(embodiment 1)
The present embodiment is a kind of high-voltage mutual inductor, sees shown in Fig. 1 to Fig. 5, comprises insulation shell 1, and is arranged on three high pressure primary connection terminals on insulation shell 2, two low-pressure secondary outlet terminals 3 and three residual voltage secondary outlet terminals 4; What in insulation shell, be also provided with that three capacitor voltage dividers 6, three are connected with each high pressure primary connection terminal is set in respectively with the secondary power supply transformation instrument transformer 8 on torch with torch 7 and three; 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.
In the present embodiment, three high pressure primary connection terminals 2 are arranged on the antetheca of insulation shell, and two low-pressure secondary outlet terminals 3 are arranged on the left side wall of insulation shell, and three residual voltage secondary outlet terminals 4 are arranged on the diapire of insulation shell.
The present embodiment can be used as zero sequential potential transformer, can use as common step-down voltage instrument transformer again, has multi-functional advantage.Owing to adopting capacitor voltage divider dividing potential drop, existing good protection effect, can obtain again comparatively accurate each phase residual voltage, thereby realizes zero-sequenceprotection function comparatively reliably in addition.
(embodiment 2)
The present embodiment is substantially the same manner as Example 1, difference is: see shown in figure Fig. 6 to Fig. 9, on the antetheca of insulation shell, be also provided with a zero-sequence current lead-out terminal 5, in insulation shell, be also provided with one and be set in three with the zero sequence current mutual inductor 9 on torch simultaneously; Order current transformer comprises zero sequence iron core 91, winding 92 and a 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 is compared with embodiment 1, also has zero sequence creepage protection function.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.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 also giving all execution modes.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (1)
1. a high-voltage mutual inductor, comprises insulation shell (1), and is arranged on three high pressure primary connection terminals (2), two low-pressure secondary outlet terminals (3) and three residual voltage secondary outlet terminals (4) on insulation shell; It is characterized in that: in insulation shell, be also provided with three capacitor voltage dividers (6), three band torches (7) that are connected with each high pressure primary connection terminal and three and be set in respectively with the secondary power supply transformation instrument transformer (8) 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470296.4U CN203481029U (en) | 2013-08-02 | 2013-08-02 | High voltage mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470296.4U CN203481029U (en) | 2013-08-02 | 2013-08-02 | High voltage mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203481029U true CN203481029U (en) | 2014-03-12 |
Family
ID=50229312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320470296.4U Expired - Fee Related CN203481029U (en) | 2013-08-02 | 2013-08-02 | High voltage mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203481029U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354160A (en) * | 2013-08-02 | 2013-10-16 | 苏州贝腾特电子科技有限公司 | High-voltage transformer |
-
2013
- 2013-08-02 CN CN201320470296.4U patent/CN203481029U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354160A (en) * | 2013-08-02 | 2013-10-16 | 苏州贝腾特电子科技有限公司 | High-voltage transformer |
| CN103354160B (en) * | 2013-08-02 | 2015-11-04 | 国家电网公司 | A kind of high-voltage mutual inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20150802 |
|
| EXPY | Termination of patent right or utility model |