CN200944345Y - Off-circuit positive and negative regulating strip-type tapping switch - Google Patents
Off-circuit positive and negative regulating strip-type tapping switch Download PDFInfo
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- CN200944345Y CN200944345Y CN 200620098267 CN200620098267U CN200944345Y CN 200944345 Y CN200944345 Y CN 200944345Y CN 200620098267 CN200620098267 CN 200620098267 CN 200620098267 U CN200620098267 U CN 200620098267U CN 200944345 Y CN200944345 Y CN 200944345Y
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Abstract
The utility model relates to a no-excitation positive and negative pressure regulation strip-shaped tapping switch used in the power transformer, which comprises an insulator, an upper base and a lower base, wherein two separated fixed contacts are arranged in parallel along the axis of the driving screw on the insulator, and a moving contact in the moving contact component spans between two adjacent fixed contacts, which is characterized in that: each phase of the corresponding switch is provided with two rows of fixed contacts and moving contacts, one row in the two rows of fixed contacts arranged in parallel of each phase has a fixed contact connected with the main coil tap (K) and a fixed contact connected with the pressure regulation coil tap, and the other row has a fixed contact connected with the output tap (X) and a fixed contact connected with the pressure regulation coil tap. The utility model is of simple structure, small size of the outside diameter, rational connection of the post head lead wire, small effective space of the entire switch occupying the transformer, low cost of manufacture and use, handy operation, reliable performance of running, and both vertical and horizontal mounting, applies to use in large-sized and medium-sized transformers, and can match with transformers with various structure.
Description
Technical field
The utility model relates to a kind of non-exciting reversing change-over voltage regulating strip-shape tap switch that is used for power transformer.
Background technology
Excitation-free positive-negative voltage-regulation tap changer can carry out positive-negative voltage-regulation to the output voltage of power transformer, and present application is very extensive.A kind of excitation-free positive-negative voltage-regulation tap changer is disclosed in Chinese patent CN2433720Y, its structure comprises: insulator and last, undersetting, on, be installed on the insulation axle between undersetting, every two-layer fixed contact and moving contact of being provided with mutually to inductive switch, every layer of fixed contact circumferentially laid along insulator, one deck is provided with fixed contact that connects main coil tap (K) and the fixed contact that connects the voltage regulation coil tap in described every mutually two-layer fixed contact, connecting the fixed contact of main coil tap and the fixed contact quantity of connection voltage regulation coil tap equates and interlocks to be provided with at interval, another layer is provided with output (X) fixed contact and connects the fixed contact of voltage regulation coil tap, the fixed contact quantity of output fixed contact and the tap of connection voltage regulation coil equates and interlocks to be provided with at interval, it is opposite that the tap of the fixed contact of every corresponding connection voltage regulation coil tap in two-layer connects the position arranged direction, is installed on simultaneously the moving contact that joins with two adjacent fixed contacts on the insulation axle.This shunting switch is cydariform or cage structure, fixed contact is circumferentially laid along insulator, and outside dimension is bigger, and especially the fixed contact lead-in wire is circumferentially drawn, switch electrified body size is increased greatly, and the volume of transformer that causes disposing shunting switch increases; In addition, this shunting switch also exists structure complicated, cost of manufacture height, the problem that operational torque is bigger.
Summary of the invention
Technical problem to be solved in the utility model be the deficiency that exists at above-mentioned prior art and provide a kind of simple in structure, be provided with rationally, the non-exciting reversing change-over voltage regulating strip-shape tap switch little, that cost of manufacture is low takes up room.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is: include insulator 3, with insulator link on, undersetting 2,14, on, be installed on two drive screws arranged side by side 4 on the undersetting, 5, two drive screws respectively with the swivel nut phase configuration of two moving contact components 22, axially be set side by side with separately fixed contacts of two rows at insulator upper edge drive screw, moving contact cross-over connection in the moving contact component 22 is between two adjacent fixed contacts, its difference is every two row's fixed contact and the moving contact components that are provided with mutually to inductive switch, a row is provided with fixed contact 15 that connects main coil tap (K) and the fixed contact 13 that connects the voltage regulation coil tap in the every phase two rows fixed contact arranged side by side, connecting the fixed contact 15 of main coil tap (K) and fixed contact 13 quantity of connection voltage regulation coil tap equates and interlocks to be provided with at interval, another row is provided with fixed contact 16 that connects output tap (X) and the fixed contact 13 that connects the voltage regulation coil tap, and fixed contact 13 quantity of the fixed contact 16 of connection output tap (X) and the tap of connection voltage regulation coil equate and interlock to be provided with at interval.
Press such scheme, it is identical that the tap that every corresponding two Volleyball Associations connect the fixed contact 13 of voltage regulation coil tap connects the position arranged direction, and the transposition moving direction of two row's moving contact components 22 when joining with adjacent two fixed contacts is opposite.
Press such scheme, described fixed contact rear end and binding post 19 link, and fixed contact is cylindric or rectangular block shape; Described moving contact component 22 comprises the supporter 21 in draw-in groove cross section, and a side of supporter connects firmly the swivel nut 10 with the drive screw phase configuration, and the draw-in groove both sides of supporter are provided with and the fixed contact clip type moving contact of cross-over connection mutually.
Press such scheme, the fixed contact that connects the voltage regulation coil tap among described every row can be provided with a plurality of, is generally 3-8.
Press such scheme, described every two row's fixed contacts that are provided with mutually and moving contact to inductive switch can be longitudinally or horizontally set 1-3, constitutes the single-phase, two-phase or the three-phase reversing change-over voltage regulating strip-shape tap switch of vertical or horizontal type structure thus respectively.
The beneficial effects of the utility model are: 1, simple in structure, outside dimension is little, the binding post lead-in wire connects rationally, switch electrified body size is little, it is little that whole switch takies the transformer useful space, upright, horizontal installation all can, be suitable for using in the large and medium-sized transformer, and can with the transformer phase configuration of various structures; 2, making and use cost are low, operate lightly, and runnability is reliable, can be convenient to the simplification of transformer device structure, and can be suitable for the high-voltage great-current shunting switch.
Description of drawings
Fig. 1 is the structure chart of facing of an embodiment of the utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 be F among Fig. 2 to view, also be the rearview of Fig. 1.
Fig. 4 is the E-E cutaway view among Fig. 2.
Fig. 5 is the elementary diagram (only showing the A phase) of an embodiment of the utility model.
Fig. 6 is the backsight structure chart of second embodiment of the utility model.
Fig. 7 is the left view of Fig. 6.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
First embodiment is shown in Fig. 1,2,3,4,5, be five grades of shunting switchs of a vertical single-phase non-exciting reversing change-over voltage regulating strip-shape, insulator 3 with a strip and block, upper and lower correspondence at insulator is installed on upper bracket 2 and undersetting 14, be provided with two drive screws that are arranged in parallel 4,5 between upper bracket and undersetting, wherein an end of a drive screw 4 joins by clutch 18 and switch operating mechanism 1, another root drive screw 5 is connected with a joggle with it by gear pair 11,17, two drive screws are rotated synchronously, and the thread rotary orientation of two drive screws is identical; Vertically be provided with the parallel fixed contact of two rows corresponding to drive screw along insulator 3, every row is provided with the fixed contact of 6 equi-spaced apart, a row is provided with 3 fixed contacts 15 that connect main coil taps (K) and 3 and connects the voltage regulation coil tap (1. in every phase two row's fixed contacts, 2., 3.) fixed contact 13, connect the fixed contact 15 of main coil tap (K) and connect the voltage regulation coil tap (1., 2., 3.) fixed contact 13 staggered settings at interval, another row is provided with 3 fixed contacts 16 that connect output taps (X) and 3 and connects the voltage regulation coil tap (1., 2., 3.) fixed contact 13, connect the fixed contact 16 of output tap (X) and connect the voltage regulation coil tap (1., 2., 3.) fixed contact 13 staggered settings at interval, it is identical that the tap of the fixed contact 13 of the connection voltage regulation coil tap among two rows connects the position arranged direction, as shown in Figure 1; Each fixed contact is a column, and fixed contact passes insulator 3, by alignment pin 23 they and insulator is connected firmly, and fixed contact rear end and binding post 19 link, in order to link with tap lead; In addition, among every phase two rows fixed contact rear end of the identical voltage regulation coil tap that connects the position by brace 12 through being coupled to each other conducting, simultaneously, fixed contact 15 rear ends of the connection main coil tap (K) among one row are coupled to each other conducting by brace 14, and fixed contact 16 rear ends that connect output tap (X) among another row are coupled to each other conducting by brace 20.Two drive screws that are arranged in parallel 4,5 respectively with swivel nut 10 phase configuration of two moving contact components 22, described moving contact component comprises the supporter 21 in draw-in groove cross section, one side of supporter connects firmly mutually with swivel nut 10, the draw-in groove both sides of supporter opposite side are provided with and the adjacent two fixed contacts clip type moving contact of cross-over connection mutually, described clip type moving contact is made of bearing pin 9, moving contact 7 and return spring 8, clip-on two become one group, in the moving contact component can inside and outside two groups of corresponding configurations with fixed contact are set, make contact-making surface bigger, contact performance is better.Can drive moving contact by switch operating mechanism 1 rotation drive screw moves up and down, because two drive screws the 4, the 5th, synchronous backward rotates, therefore two moving contact components with its phase configuration move as synchronous backward, the moving direction that also promptly replaces is opposite, its swivel nut moves up or down when drive screw 4 rotates, and then driven drive screw 5 its swivel nuts of drive are done and relative motion downward or upward.Promptly two moving contact component transposition moving directions are opposite, connect requirement to reach shunting switch positive-negative voltage-regulation gear.In addition, fixed contact and moving contact component are outside equipped with arc-extinguish chamber 6 between upper and lower bearing 2,14, the electrified body in the switch can be isolated from the outside like this, further reduce effective overall dimension of switch.
Voltage regulation coil has 3 taps in the present embodiment, and output (X) is drawn, and can realize 5 grades of outputs, connection principle as shown in Figure 5, its switch motion position relation is as shown in the table:
| The | 1 | 2 | 3 | 4 | 5 |
| The pressure regulation position | +2 | +1 | 0 | -1 | -2 |
| The right row of Fig. 1 | K-③ | K-② | K-② | K-① | K-① |
| Fig. 1 left bank | X-① | X-① | X-② | X-② | X-③ |
This switch links to each other with strutting piece in the transformer by insulator 3, and 1 of switch operating mechanism is fixed on the oil tank of transformer, and both link to each other by clutch 18.
Another embodiment of the utility model such as Fig. 6, shown in 7, it is a horizontal three-phase non-exciting reversing change-over voltage regulating strip-shape tap switch, the difference of it and a last embodiment is that insulator extends longitudinally, every two row's fixed contacts and moving contact component that is provided with mutually to inductive switch longitudinally is provided with 3 (sections), each all has two row's fixed contact and moving contact components, 3 (sections) are set represent three-phase, the fixed contact of every phase is identical with a last embodiment with the moving contact component structure, be shared two drive screws of three-phase, the upper end of drive screw links to each other with switch operating mechanism, interlude interconnects, three output of three-phase (X, Y, Z) fixed contact can be total to connecting to neutral, constitute the neutral point pressure regulation, then constitute the triangle connection as joining another phase coil head end respectively.The transmission position concerns the same example.This embodiment is horizontal installation, has increased several mounting panels 15, can be directly fixed at the bottom of the interior side case of transformer, and this moment, switch operating mechanism generally was installed in fuel tank bottom one end.
Among last two embodiment, switch operating mechanism and Switch main body are separate structure, and switch operating mechanism and body also can connect as one formula as required in the reality.
Claims (10)
1, a kind of non-exciting reversing change-over voltage regulating strip-shape tap switch, include insulator (3), with insulator link on, undersetting (2,14), on, be installed on two drive screws arranged side by side (4 on the undersetting, 5), two drive screws respectively with the swivel nut phase configuration of two moving contact components, axially be set side by side with separately fixed contacts of two rows at insulator upper edge drive screw, moving contact (7) cross-over connection in the moving contact component (22) is between two adjacent fixed contacts, it is characterized in that every two row's fixed contact and moving contact components that are provided with mutually to inductive switch, a row is provided with the fixed contact (15) that connects main coil tap (K) and the fixed contact (13) of connection voltage regulation coil tap in the every phase two rows fixed contact arranged side by side, connecting the fixed contact (15) of main coil tap (K) and fixed contact (13) quantity of connection voltage regulation coil tap equates and interlocks to be provided with at interval, another row is provided with and connects the fixed contact (16) of exporting tap (X) and the fixed contact (13) that connects the voltage regulation coil tap, connects equal with fixed contact (13) quantity that connects the voltage regulation coil tap and the staggered setting at interval of the fixed contact (16) of exporting tap (X).
2, by the described non-exciting reversing change-over voltage regulating strip-shape tap switch of claim 1, it is identical to it is characterized in that tap that every corresponding two Volleyball Associations connect the fixed contact (13) of voltage regulation coil tap connects the position arranged direction, and the transposition moving direction of two row's moving contact components (22) when joining with adjacent two fixed contacts is opposite.
3, by claim 1 or 2 described non-exciting reversing change-over voltage regulating strip-shape tap switch, it is characterized in that described fixed contact rear end and binding post (18) link, fixed contact is cylindric or rectangular block shape.
4, by claim 1 or 2 described non-exciting reversing change-over voltage regulating strip-shape tap switch, it is characterized in that described moving contact component (22) comprises the supporter (21) in draw-in groove cross section, one side of supporter connects firmly the swivel nut (10) with the drive screw phase configuration, and the draw-in groove both sides of supporter are provided with and the fixed contact clip type moving contact of cross-over connection mutually.
5,, it is characterized in that the fixed contact that connects the voltage regulation coil tap among described every row is provided with 3-8 by claim 1 or 2 described non-exciting reversing change-over voltage regulating strip-shape tap switch.
6, by claim 1 or 2 described non-exciting reversing change-over voltage regulating strip-shape tap switch, it is characterized in that described to inductive switch every two row's fixed contacts that are provided with mutually and moving contact longitudinally or horizontally set 1-3, constitute the single-phase, two-phase or the three-phase reversing change-over voltage regulating strip-shape tap switch of vertical or horizontal type structure thus respectively.
7, by claim 1 or 2 described non-exciting reversing change-over voltage regulating strip-shape tap switch, it is characterized in that being provided with between upper bracket (2) and undersetting (14) two drive screws that are arranged in parallel (4,5), wherein an end of a drive screw (4) joins by clutch (18) and switch operating mechanism (1), another root drive screw (5) is connected with a joggle with it by gear pair (11,17), two drive screws rotate synchronously, and the thread rotary orientation of two drive screws is identical.
8,, it is characterized in that described clip type moving contact is made of bearing pin (9), moving contact (7) and return spring (8) by the described non-exciting reversing change-over voltage regulating strip-shape tap switch of claim 4.
9, by the described non-exciting reversing change-over voltage regulating strip-shape tap switch of claim 5, it is characterized in that every row is provided with the fixed contact of 6 equi-spaced apart, (1. a row is provided with 3 fixed contacts (15) that connect main coil taps (K) and the tap of 3 connection voltage regulation coils in every phase two row's fixed contacts, 2., 3.) fixed contact (13), connect the fixed contact (15) of main coil tap (K) and connect the voltage regulation coil tap (1., 2., 3.) fixed contact (13) is staggered to be provided with at interval, (1. another row is provided with 3 fixed contacts (16) that connect output taps (X) and the tap of 3 connection voltage regulation coils, 2., 3.) fixed contact (13), connect the fixed contact (16) of output tap (X) and connect the voltage regulation coil tap (1., 2., 3.) fixed contact (13) is staggered to be provided with at interval, and it is identical that the tap of the fixed contact (13) of the connection voltage regulation coil tap among two rows connects the position arranged direction.
10, by the described non-exciting reversing change-over voltage regulating strip-shape tap switch of claim 7, it is characterized in that the every two row's fixed contacts and moving contact that is provided with mutually of inductive switch longitudinally is provided with 3, each all has two row's fixed contact and moving contacts, be provided with 3 and represent three-phase, shared two drive screws of three-phase, the upper end of drive screw links to each other with switch operating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098267 CN200944345Y (en) | 2006-08-07 | 2006-08-07 | Off-circuit positive and negative regulating strip-type tapping switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098267 CN200944345Y (en) | 2006-08-07 | 2006-08-07 | Off-circuit positive and negative regulating strip-type tapping switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200944345Y true CN200944345Y (en) | 2007-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620098267 Expired - Fee Related CN200944345Y (en) | 2006-08-07 | 2006-08-07 | Off-circuit positive and negative regulating strip-type tapping switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200944345Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905094B (en) * | 2006-08-07 | 2010-05-12 | 武汉泰普变压器开关有限公司 | Non-exciting reversing change-over voltage regulating strip-shape tap switch |
| CN102044348A (en) * | 2009-10-16 | 2011-05-04 | 贵州长征电力设备有限公司 | Polarity contact bridge apparatus and tap selector |
| CN102354626A (en) * | 2011-09-30 | 2012-02-15 | 上海华明电力设备集团有限公司 | Vertically-arranged integral bipolar converter |
| CN108987146A (en) * | 2018-08-01 | 2018-12-11 | 河南森源电气股份有限公司 | A kind of three-phase off circuit tap changer and the transformer using the tap switch |
| CN109741979A (en) * | 2018-12-27 | 2019-05-10 | 西门子变压器（武汉）有限公司 | The switching device and transformer of transformer |
-
2006
- 2006-08-07 CN CN 200620098267 patent/CN200944345Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905094B (en) * | 2006-08-07 | 2010-05-12 | 武汉泰普变压器开关有限公司 | Non-exciting reversing change-over voltage regulating strip-shape tap switch |
| CN102044348A (en) * | 2009-10-16 | 2011-05-04 | 贵州长征电力设备有限公司 | Polarity contact bridge apparatus and tap selector |
| CN102354626A (en) * | 2011-09-30 | 2012-02-15 | 上海华明电力设备集团有限公司 | Vertically-arranged integral bipolar converter |
| CN102354626B (en) * | 2011-09-30 | 2014-04-23 | 上海华明电力设备集团有限公司 | Vertically-arranged integral bipolar converter |
| CN108987146A (en) * | 2018-08-01 | 2018-12-11 | 河南森源电气股份有限公司 | A kind of three-phase off circuit tap changer and the transformer using the tap switch |
| CN108987146B (en) * | 2018-08-01 | 2023-11-21 | 河南森源电气股份有限公司 | Three-phase non-excitation tapping switch and transformer using same |
| CN109741979A (en) * | 2018-12-27 | 2019-05-10 | 西门子变压器（武汉）有限公司 | The switching device and transformer of transformer |
| CN109741979B (en) * | 2018-12-27 | 2024-05-03 | 西门子能源变压器(武汉)有限公司 | Switching device of transformer and transformer |
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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: 20070905 Termination date: 20110807 |