CN204558235U - A kind of resistance mode of resonance voltage transformer - Google Patents
A kind of resistance mode of resonance voltage transformer Download PDFInfo
- Publication number
- CN204558235U CN204558235U CN201520288032.6U CN201520288032U CN204558235U CN 204558235 U CN204558235 U CN 204558235U CN 201520288032 U CN201520288032 U CN 201520288032U CN 204558235 U CN204558235 U CN 204558235U
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- China
- Prior art keywords
- phase
- instrument transformer
- post
- king
- connection terminal
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Abstract
A kind of resistance mode of resonance voltage transformer, comprise the A be encapsulated in epoxy resin housing, B, C phase voltage instrument transformer and zero phase instrument transformer, the upper surface of epoxy resin housing there is A, B, C phase and zero phase king-post, A, B, C and zero phase king-post are respectively equipped with A, B, C connecting terminal and zero phase connection terminal, A, B, the lead-out wire of the primary winding of C phase voltage instrument transformer respectively with A, B, C phase connection terminal connects, A, B, the other end of the primary winding of C phase voltage instrument transformer is that star meets Y-Y, its neutral feature is connected with zero phase instrument transformer primary winding one end, the other end connecting to neutral phase connection terminal of zero phase instrument transformer primary winding.The utility model can effectively suppress various resonance method, ensures the reliability service of electric equipment, and long service life.
Description
Technical field
The utility model belongs to a kind of indoor application voltage transformer, specifically a kind of resistance mode of resonance voltage transformer.
Background technology
Voltage transformer; the iron core being particularly encapsulated in the voltage transformer in epoxy resin easily produces ferro resonance; because the winding of voltage transformer during resonance is by sizable electric current; voltage transformer winding may be made to burn out when a fuse not yet fuses; cause the malfunction of part relay protection and electrical installation; thus cause contingency to occur, particularly affect the useful life of voltage transformer.
Utility model content
The purpose of this utility model, is to provide a kind of resistance mode of resonance voltage transformer, improves the useful life of voltage transformer, can effectively suppress various resonance, guarantee the reliability service of electric equipment.
The technical scheme adopted is:
A kind of resistance mode of resonance voltage transformer, comprise A phase voltage instrument transformer, B phase voltage instrument transformer, C phase voltage instrument transformer, zero phase instrument transformer and epoxy resin housing, the A phase king-post that the upper surface of epoxy resin housing has epoxy resin to make, B phase king-post, C phase king-post and zero phase king-post, and the upper end of A, B, C and zero phase king-post is respectively arranged with A phase connection terminal, B phase connection terminal, C phase connection terminal and zero phase connection terminal.A phase voltage instrument transformer, B phase voltage instrument transformer, C phase voltage instrument transformer and zero phase instrument transformer are encapsulated in epoxy resin housing respectively, A phase voltage instrument transformer, B phase voltage instrument transformer, the primary winding lead-out wire of C phase voltage instrument transformer is each passed through the A phase king-post that epoxy resin is made, B phase king-post, after C phase king-post, with corresponding A phase connection terminal, B phase connection terminal, C phase connection terminal connects, A phase voltage instrument transformer, the primary winding of B phase voltage instrument transformer and C phase voltage instrument transformer adopts wye connection, its neutral point is connected with one end of zero phase instrument transformer primary winding, the other end of zero phase instrument transformer primary winding is connected with earth terminal through zero phase king-post.The secondary coil of A phase voltage instrument transformer, B phase voltage instrument transformer, C phase voltage instrument transformer is connected with the secondary wiring terminals in the secondary terminal box on epoxy resin housing respectively.In addition, the utility model also adopts following technical scheme:
A, coil adopt low magnetic density design, increase insulation thickness and coil turn, product anti-overvoltage capacity is strengthened.
B, winding adopt 1/3 winding displacement mode, increase distributed capacitance and stray capacitance etc., can not resonance, and product office puts little, long service life.
C, employing " R " shaped iron core, make iron core no-load loss and no-load current significantly reduce, and improves product tape load capacity.
D, winding arrange Equalized voltage ring construction, and field intensity is uniformly distributed.
Technical parameter:
Voltage ratio: 10/0.1kV
Accuracy class: 0.2/6P
Rated output capacity: 3X30/3X100VA
Frequency: 50/60HZ
Type of device: indoor
Advantage of the present utility model:
Outdoor ring main unit is mainly installed on open air, should be attractive in appearance, and take up an area little, and will to the harmonic wave existed in the single-phase rectifier of electric railway, rectification electrolysis and electrical network, the imbalance etc. of three-phase load, can effectively measure and monitor, to adapt under the ruuning situation of complexity, can ensure to measure and in the face of the change of electrical network complexity, can effectively suppress various resonance to produce, ensure the reliability service of electric equipment, and the utility model long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is A-A view of Fig. 1.
Embodiment
A kind of resistance mode of resonance voltage transformer, comprises A phase voltage instrument transformer 1, B phase voltage instrument transformer 2, C phase voltage instrument transformer 3, zero phase instrument transformer 4 and housing 5;
A phase voltage instrument transformer, B phase voltage instrument transformer, C phase voltage instrument transformer and zero phase instrument transformer pour into an overall structure by epoxy resin, epoxy resin poured body is housing 5, it is characterized in that: the upper surface of housing 5 has A phase king-post 6, B phase king-post 7, C phase king-post 8 and zero phase king-post 9; A phase king-post 6, B phase king-post 7, C phase king-post 8 and zero phase king-post 9 are epoxy resin king-post, and are the overall structure of one-time cast-forming with housing 5.The upper end of A phase king-post 6, B phase king-post 7, C phase king-post 8 and zero phase king-post 9 is respectively arranged with A phase connection terminal 10, B phase connection terminal 11, C phase connection terminal 12 and zero phase connection terminal 13.A phase voltage instrument transformer 1, B phase voltage instrument transformer 2 are connected with corresponding A phase connection terminal 10, B phase connection terminal 11, C phase connection terminal 12 through A phase king-post 6, B phase king-post 7 and C phase king-post 8 respectively with the lead-out wire of the primary winding 14 of C phase voltage instrument transformer 3.The other end of the primary winding 14 of A phase voltage instrument transformer 1, B phase voltage instrument transformer 2, C phase voltage instrument transformer 3 is that star meets Y-Y, one end that its neutral point is connected with zero phase instrument transformer 4 primary winding 15 connects, and the other end of zero phase instrument transformer primary winding 15 is connected with zero phase connection terminal 13.The lead-out wire of the secondary coil 16 of A phase voltage instrument transformer 1, B phase voltage instrument transformer 2 and C phase voltage instrument transformer 3, correspondingly with the binding post in the secondary terminal box 17 be fixed on housing 5 respectively connects.Namely all primary voltages are all through the iron core 18 of each corresponding coil, and all signals generating secondary voltage at corresponding secondary coil 16 are all exported by secondary terminal box.
Claims (1)
1. hinder a mode of resonance voltage transformer, comprise A phase voltage instrument transformer (1), B phase voltage instrument transformer (2), C phase voltage instrument transformer (3), zero phase instrument transformer (4) and housing (5);
A phase voltage instrument transformer, B phase voltage instrument transformer, C phase voltage instrument transformer and zero phase instrument transformer pour into an overall structure by epoxy resin, epoxy resin poured body is housing (5), it is characterized in that: the upper surface of housing (5) has A phase king-post (6), B phase king-post (7), C phase king-post (8) and zero phase king-post (9); A phase king-post (6), B phase king-post (7), C phase king-post (8) and zero phase king-post (9) are epoxy resin king-post, and with housing (5) overall structure that is one-time cast-forming; The upper end of A phase king-post (6), B phase king-post (7), C phase king-post (8) and zero phase king-post (9) is respectively arranged with A phase connection terminal (10), B phase connection terminal (11), C phase connection terminal (12) and zero phase connection terminal (13); A phase voltage instrument transformer (1), B phase voltage instrument transformer (2) are connected with corresponding A phase connection terminal (10), B phase connection terminal (11), C phase connection terminal (12) through A phase king-post (6), B phase king-post (7) and C phase king-post (8) respectively with the lead-out wire of the primary winding (14) of C phase voltage instrument transformer (3); The other end of the primary winding (14) of A phase voltage instrument transformer (1), B phase voltage instrument transformer (2), C phase voltage instrument transformer (3) is that star meets Y-Y, one end that its neutral point is connected with zero phase instrument transformer (4) primary winding (15) connects, and the other end of zero phase instrument transformer primary winding (15) is connected with zero phase connection terminal (13); The lead-out wire of the secondary coil (16) of A phase voltage instrument transformer (1), B phase voltage instrument transformer (2) and C phase voltage instrument transformer (3), correspondingly with the binding post in the secondary terminal box (17) be fixed on housing (5) respectively connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288032.6U CN204558235U (en) | 2015-05-07 | 2015-05-07 | A kind of resistance mode of resonance voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288032.6U CN204558235U (en) | 2015-05-07 | 2015-05-07 | A kind of resistance mode of resonance voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204558235U true CN204558235U (en) | 2015-08-12 |
Family
ID=53833319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520288032.6U Expired - Fee Related CN204558235U (en) | 2015-05-07 | 2015-05-07 | A kind of resistance mode of resonance voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204558235U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731500A (en) * | 2017-10-20 | 2018-02-23 | 湖北大二互科技股份有限公司 | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit |
-
2015
- 2015-05-07 CN CN201520288032.6U patent/CN204558235U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731500A (en) * | 2017-10-20 | 2018-02-23 | 湖北大二互科技股份有限公司 | A kind of suppression mode of resonance threephase potential transformer that can be docked with ring main unit |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20190507 |