CN205303211U - No -excitation tapping switch used in transformer - Google Patents
No -excitation tapping switch used in transformer Download PDFInfo
- Publication number
- CN205303211U CN205303211U CN201520912306.4U CN201520912306U CN205303211U CN 205303211 U CN205303211 U CN 205303211U CN 201520912306 U CN201520912306 U CN 201520912306U CN 205303211 U CN205303211 U CN 205303211U
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- tap
- voltage regulation
- coil
- regulation coil
- transformer
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Abstract
The utility model discloses a no -excitation tapping switch used in transformer, including insulator, upper bracket, undersetting and insulating axle. Corresponding to the every two -layer static contact and moving contact of being equipped with mutually of switch, wherein the one deck is provided with three connection and exports output static contact and four static contacts that connection transformer voltage regulation coil took a percentage of taking a percentage mutually, connects two tapped static contacts of voltage regulation coil and lies in between two static contacts that connection voltage regulation coil is first, the tail is taken a percentage, another layer of every looks is equipped with three connection transformer owner coil tap's static contact and four connection transformer pressure regulating coil tap's static contact, and the link bit of taking a percentage of the main coil tap's of three connection static contact and four static contacts of connecting pressure regulating coil tap arranges along circumference that the order is for the voltage regulation coil tail is taken a percentage, main coil tap, voltage regulation coil tail take a percentage, voltage regulation coil center tap, main coil tap, voltage regulation coil head takes a percentage and main coil tap. The utility model discloses simple structure, simple to operate, dependable performance.
Description
Technical field
This utility model relates to a kind of no-excitation tapping switch used in transformer.
Background technology
Table 1 illustrates the voltage regulation result of traditional no-excitation tapping switch used in transformer.
Table 1
| Switch position number | 1 | 2 | 3 | 4 | 5 |
| Coil effective turn | W+W1+W2 | W+W1 | W | W-W2 | W-W1-W2 |
Wherein, W is the number of turn of transformator main coil, and W1 and W2 is the voltage regulation coil pressure regulation section number of turn respectively. Traditional no-excitation tapping switch used in transformer is primarily present structure complexity, installs inconvenience, the not high deficiency of reliability.
Summary of the invention
Technical problem to be solved in the utility model is in that to provide a kind of simple in construction, easy for installation, cost is low, the transformator non-exciting shunting switch for positive and negative voltage regulating of dependable performance.
For solving above-mentioned technical problem, technical solution adopted in the utility model is:
A kind of no-excitation tapping switch used in transformer, is separately positioned on the top and bottom of described insulator including insulator, upper bracket, undersetting and shaft insulation, upper bracket and undersetting, and shaft insulation is arranged between upper bracket and undersetting; Every corresponding to this no-excitation tapping switch used in transformer is provided with two-layer static contact and moving contact mutually, every layer of static contact is along insulator circumferentially, it is characterized in that, wherein one layer of static contact being provided with three output static contacts connecting output tap mutually and four connection transformer voltage regulation coil taps in every phase two-layer static contact, and the interlaced interval of four static contacts of three output static contacts and connection voltage regulation coil tap is arranged, connect tapped two static contacts of voltage regulation coil between two static contacts connecting voltage regulation coil initial and end tap; Another layer in every phase two-layer static contact is provided with the static contact of three connection transformer main coil taps and the static contacts of four described voltage regulating coil of transformer taps of connection, and it is voltage regulation coil tail tap, main coil tap, voltage regulation coil tail tap, voltage regulation coil centre tap, main coil tap, voltage regulation coil head tap and main coil tap that the tap of three static contacts connecting main coil taps and four static contacts connecting voltage regulation coil taps connects position order of placement circumferentially;The tap connection position arranged direction of the static contact connecting voltage regulation coil tap in every phase two-layer static contact is contrary.
Above-mentioned a kind of no-excitation tapping switch used in transformer can be a dynamic and static structure of contact terminal of phase two-layer, constitutes single-phase positive-negative voltage-regulation switch; It is alternatively six layers of dynamic and static structure of contact terminal of three-phase, constitutes three-phase positive-negative voltage-regulation switch.
Owing to this utility model have employed above technical scheme, the technique effect of its generation it is apparent that
1, this utility model simple in construction, simple for production, reliable working performance, making and use cost are low, are suitable to the transformator phase configuration with various structures, and can be easy to the simplification of transformer device structure;
2, this utility model has good positive-negative voltage-regulation effect, thus the demand in market can be met.
Accompanying drawing explanation
Fig. 1 be a kind of no-excitation tapping switch used in transformer according to this utility model one embodiment face structure chart.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is a kind of no-excitation tapping switch used in transformer of the present utility model is the elementary diagram of three-phase structure.
Fig. 5 is a kind of no-excitation tapping switch used in transformer of the present utility model is the elementary diagram (only showing B phase) during phase structure.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail.
Fig. 1 to Fig. 4 illustrates an embodiment according to a kind of no-excitation tapping switch used in transformer of this utility model. In this embodiment, this no-excitation tapping switch used in transformer be a vertical three-phase without five grades of positive-negative voltage-regulation tap changers of excitation corner connection, it includes insulator 5, upper bracket 3, undersetting 6 and shaft insulation 4. Insulator 5 is in cydariform, and upper bracket 3 and undersetting 6 are separately positioned on above and below insulator 5, and shaft insulation 4 is arranged between upper bracket 3 and undersetting 6. The upper end of shaft insulation 5 is connected with the power transmission shaft 2 being threaded onto in upper bracket 3, and the upper end of power transmission shaft 2 is connected with switch actuating structure 1.
In the present embodiment, this no-excitation tapping switch used in transformer is provided with six layers of static contact and moving contact, every two-layer static contact and the moving contact phase corresponding to this no-excitation tapping switch used in transformer, and six layers correspond to A, B, C three-phase. Every layer of static contact is along insulator 5 circumferentially. In every phase two-layer static contact wherein one layer be provided with three and connect and export tap mutually and (refer to Fig. 4, the tap respectively x, y, z of output mutually of A, B, C three-phase) output static contact 7 and four connect voltage regulation coil tap static contacts 9 1., 2., 3., three output static contacts 7 and connect the interlaced intervals of four static contacts 9 of voltage regulation coil tap and arrange, connect voltage regulation coil centre tap two static contacts 2. in connection voltage regulation coil head tap 1., between tail tap two static contacts 3.. The tap of the static contacts 9 of three output static contacts 7 and four connection transformer voltage regulation coil taps connect position according to be clockwise voltage regulation coil tail tap 3., output static contact, voltage regulation coil centre tap 2., output static contact, voltage regulation coil centre tap 2., export static contact, voltage regulation coil head tap 1.. Another layer in every phase two-layer static contact is provided with static contact 15 and four connection transformer voltage regulation coil taps static contact 9 1., 2., 3. of three connection transformer main coil tap K, three static contacts 15 connecting main coil tap K and four taps connecting voltage regulation coil tap static contacts 9 1., 2., 3. connect position according to be counterclockwise voltage regulation coil tail tap 3., main coil tap K, voltage regulation coil tail tap 3., voltage regulation coil centre tap 2., main coil tap K, voltage regulation coil head tap 1. with main coil tap K.
In another embodiment, the tap of the static contacts 9 of three output static contacts 7 and four connection transformer voltage regulation coil taps connect position according to be clockwise voltage regulation coil tail tap 3., output static contact, voltage regulation coil centre tap 2., output static contact, voltage regulation coil centre tap 2., export static contact, voltage regulation coil head tap 1.; And three connect the static contacts 15 of main coil tap K and four taps connecting voltage regulation coil tap static contacts 9 1., 2., 3. connect position according to be counterclockwise voltage regulation coil tail tap 3., main coil tap K, voltage regulation coil tail tap 3., voltage regulation coil centre tap 2., main coil tap K, voltage regulation coil head tap 1. with main coil tap K, as long as namely making the tap connection position arranged direction connecting the static contact of voltage regulation coil tap in every phase two-layer static contact contrary.
In the present embodiment, aforesaid all static contacts are column, corresponding to static contact, the moving contact 8 that simultaneously adjacent with two static contact connects can be set on shaft insulation, moving contact 8 can be annular roller moving contact, including ring contact, radially sliding pin 12, the spring 10 being set on bearing pin and the bearing pin 13 being arranged on radially sliding pin termination, the central authorities of bearing pin are provided with roller 14, and with ring contact phase configuration, moving contact is alternatively top formula moving contact or clip type moving contact. Moving contact 8 is connected with shaft insulation 4 by supporter 11, and reversely (the misplacing 180 ��) laying up and down of two moving contacts of the static contact of corresponding every phase two-layer, to improve the force-bearing situation of shaft insulation, it is possible to arrange in the same direction up and down. In addition, the static contact in every phase two-layer static contact and moving contact with the connection voltage regulation coil tap that identical tap links position is connected with each other conducting, wherein the output static contact 7 of a layer is connected with each other conducting, and the static contact 15 connecting main coil tap K in another layer is connected with each other conducting. Insulator 5 is except can adopting cydariform, it is possible to adopt cage type or tubular; Whole switch is except may be designed to vertical structure, it is possible to be designed as horizontal type structure.
In the present embodiment, voltage regulation coil has three taps, three-phase three output (x, y, z) static contact can be total to connecting to neutral, 5 grades of outputs can be realized, its switch motion relation (only showing B phase) (switch spindle just rotates counterclockwise) as shown in table 2:
Table 2
Non-exciting shunting switch for positive and negative voltage regulating according to this utility model one embodiment is the effect realizing table 2, and compared with prior art, in positive and negative tune structure, every layer adds a static contact, and moving contact 8 gear shift adds one and surmounts file location. As shown in table 2, this switch has 6 file locations, and wherein interposition has a position to be surmount (forbidding being energized) at this gear. When switching manipulation, moving contact 8 crosses dead point release, automatic homing, and feel is strong, and reliability is high, may be adapted to loud-break switch.
In another embodiment, no-excitation tapping switch used in transformer is single-phase switch, only include two-layer moving contact and static contact, this two-layer static contact is identical with previous embodiment with the arrangement of moving contact, it differs only in the difference between single-phase and three-phase, its connection principle refer to shown in Fig. 5, does not repeat them here.
Above description is in conjunction with further illustrating that this utility model is done by detailed description of the invention and accompanying drawing. But; this utility model obviously can be implemented with multiple other method being different from this description; those skilled in the art can carry out promoting, deducing according to actually used situation when without prejudice to this utility model content; therefore, the content of above-mentioned specific embodiment should not limit the protection domain that this utility model is determined.
Claims (5)
1. a no-excitation tapping switch used in transformer, including insulator, upper bracket, undersetting and shaft insulation, described upper bracket and undersetting are separately positioned on the top and bottom of described insulator, and described shaft insulation is arranged between upper bracket and undersetting; Every corresponding to this no-excitation tapping switch used in transformer is provided with two-layer static contact and moving contact mutually, every layer of static contact is along insulator circumferentially, it is characterized in that, wherein one layer of static contact being provided with three output static contacts connecting output tap mutually and four connection transformer voltage regulation coil taps in described every phase two-layer static contact, and the interlaced interval of four static contacts of three output static contacts and connection voltage regulation coil tap is arranged, connect tapped two static contacts of voltage regulation coil between two static contacts connecting voltage regulation coil initial and end tap;
Another layer in described every phase two-layer static contact is provided with the static contact of three connection transformer main coil taps and the static contacts of four described voltage regulating coil of transformer taps of connection, and it is voltage regulation coil tail tap, main coil tap, voltage regulation coil tail tap, voltage regulation coil centre tap, main coil tap, voltage regulation coil head tap and main coil tap that the tap of three static contacts connecting main coil taps and four static contacts connecting voltage regulation coil taps connects position order of placement circumferentially;
The tap connection position arranged direction of the static contact connecting voltage regulation coil tap in every phase two-layer static contact is contrary.
2. a kind of no-excitation tapping switch used in transformer according to claim 1, it is characterised in that described no-excitation tapping switch used in transformer is single-phase switch.
3. a kind of no-excitation tapping switch used in transformer according to claim 1, it is characterised in that described no-excitation tapping switch used in transformer is threephase switch.
4. a kind of no-excitation tapping switch used in transformer according to claim 1, it is characterised in that described insulator is cage type, tubular or cydariform.
5. a kind of no-excitation tapping switch used in transformer according to Claims 1-4 any one, it is characterized in that, three described output static contacts and the tap of the static contact of four connection transformer voltage regulation coil taps connect position according to being voltage regulation coil tail tap, output static contact, voltage regulation coil centre tap, output static contact, voltage regulation coil centre tap, output static contact, voltage regulation coil head tap clockwise;
It is voltage regulation coil tail tap, main coil tap, voltage regulation coil tail tap, voltage regulation coil centre tap, main coil tap, voltage regulation coil head tap and main coil tap that the tap of three static contacts connecting main coil tap and four static contacts connecting voltage regulation coil tap connects position according to counter clockwise direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912306.4U CN205303211U (en) | 2015-11-16 | 2015-11-16 | No -excitation tapping switch used in transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912306.4U CN205303211U (en) | 2015-11-16 | 2015-11-16 | No -excitation tapping switch used in transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205303211U true CN205303211U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520912306.4U Expired - Fee Related CN205303211U (en) | 2015-11-16 | 2015-11-16 | No -excitation tapping switch used in transformer |
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| Country | Link |
|---|---|
| CN (1) | CN205303211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158309A (en) * | 2016-08-30 | 2016-11-23 | 武汉泰普变压器开关有限公司 | A kind of seven grades of off circuit tap changers of positive-negative voltage-regulation |
-
2015
- 2015-11-16 CN CN201520912306.4U patent/CN205303211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158309A (en) * | 2016-08-30 | 2016-11-23 | 武汉泰普变压器开关有限公司 | A kind of seven grades of off circuit tap changers of positive-negative voltage-regulation |
| CN106158309B (en) * | 2016-08-30 | 2019-03-15 | 武汉泰普变压器开关有限公司 | A kind of seven grades of off circuit tap changers of positive-negative voltage-regulation |
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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: 20160608 Termination date: 20161116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |