CN2468142Y - Non-excitation linear voltage-regulating drum tap changer - Google Patents
Non-excitation linear voltage-regulating drum tap changer Download PDFInfo
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- CN2468142Y CN2468142Y CN 01212241 CN01212241U CN2468142Y CN 2468142 Y CN2468142 Y CN 2468142Y CN 01212241 CN01212241 CN 01212241 CN 01212241 U CN01212241 U CN 01212241U CN 2468142 Y CN2468142 Y CN 2468142Y
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- contact
- linear voltage
- moving contact
- switch
- voltage regulation
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Abstract
The utility model relates to a non-excitation linear voltage-regulating drum tap changer. An insulator, corresponding to a moving contact, is provided with a static contact and an output contact; the moving contact is bridged between a tapping tap and the output contact. The utility model which can be provided with a shape of a drum or a cage structure can be installed in a vertical direction or in a horizontal direction. The utility model is suitable for needs of various capacity transformers.
Description
The utility model relates to the no excitation linear voltage regulation drum-shaped shunting switch of a kind of transformer.
Advanced in the market no excitation middle part pressure regulation drum-shaped shunting switch structure (is only shown the A phase) as shown in Figure 1, it is only applicable to the cross-over connection of tap between two sections coils, be that single spanning connects or doube bridge cross-over connection mode, realize linear the accent as need, can only realize (shown in Fig. 2,3,4) by the cage type switch, but the cage type switch is because structure is complicated, it is big that outer electrified body takies the transformer useful space, volume of transformer is also increased, thereby the above-mentioned two switch scopes of application all are restricted.
The purpose of this utility model is to avoid above-mentioned weak point and a kind of features simple structure, reliability height, the comprehensive low no excitation linear voltage regulation drum-shaped shunting switch of use cost is provided.
The purpose of this utility model is realized by following scheme.
Have in switch upper bracket 2, undersetting 14, the upper bracket and be coated with power transmission shaft 1, power transmission shaft top connects operating mechanism 5, with by supporter 12 bearing pin 9, spring 8 and moving contact 7 are housed on the insulation axle 4 that power transmission shaft 1 links to each other, moving contact 7 cross-over connections are in fixed contact 13 and export 15 of contacts, are installed with insulator 3 between upper and lower bearing.It is characterized in that being installed with fixed contact 13 and output contact 15 corresponding to moving contact 7 on the insulator 3, the linear accent exported the mutual short circuit of contact X in the structure, and moving contact 7 cross-over connections are in fixed contact 13 and export 15 of contacts.
In the such scheme, this switch can heterogeneous multilayer be arranged formation interlayer mutually insulated, heterogeneous linear voltage regulation drum switch, also only phase one deck structure constitutes single-phase linear tap changer, but also on-insulated formation parallel-connection structure between multilayer, but moving contact 7 homonymies of its each layer are arranged the layout of also can tossing about.
According to such scheme, the utlity model has in switch upper bracket 2, undersetting 14, the upper bracket and be coated with power transmission shaft 1, power transmission shaft top connects operating mechanism 5, with by supporter 12 bearing pin 9, spring 8 and moving contact 7 are housed on the insulation axle 4 that power transmission shaft 1 links to each other, moving contact 7 cross-over connections are in fixed contact 13 and export 15 of contacts, are installed with insulator 3 between upper and lower bearing.It is characterized in that being installed with fixed contact 13 and output contact 15 corresponding to moving contact 7 on the insulator 3, the linear accent exported the mutual short circuit of contact X in the structure, and moving contact 7 cross-over connections are in fixed contact 13 and export 15 of contacts.When voltage, electric current hour insulator 3 can be cage type or disk-shaped structure, volume of switch is also less, upright, horizontal installation all can, be applicable to miniature transformer.When voltage, electric current are big, insulator can be core structure, electrified body is isolated in the tube, it is little to take the transformer useful space, upright, horizontal installation all can, Here it is, and the linear voltage regulation drum-shaped shunting switch is applicable to large and medium-sized transformer, can be designed to single-phasely also can be designed to three-phase according to the transformer needs.When constituting three-phase or single-phase high-current switch, a part of contact can with other reversed arrangement, make main shaft stressed rationally, improve main shaft bending strength and reliability.
The utility model features simple structure, make simple and easyly, especially use cost is low, is convenient to transformer device structure and simplifies, and its principle is widely used on the various version sub-connecting switch of transformer.
Below in conjunction with accompanying drawing an embodiment of the present utility model is described.
Fig. 1 is a no excitation middle part pressure regulation drum-shaped shunting switch structure chart on the market.
Fig. 2 is that the linearity of prior art is transferred cage type switch main structure figure.
Fig. 3 is the E-E view of Fig. 2.
Fig. 4 is the elementary diagram (only show A phase) of prior art corresponding to Fig. 2.
Fig. 5 is the front view (three-phase linear accent drum-shaped shunting switch) of an embodiment of the present utility model.Only describe a phase among the figure in detail.
Fig. 6 is the A-A view of Fig. 5, and Fig. 7 is the B-B view of Fig. 5.
Fig. 8 is the elementary diagram of the utility model embodiment.
Fig. 7 is the E-E view of Fig. 6.
Fig. 5-8 is depicted as a three-phase does not have five grades of linear voltage-regulation tap changer body parts of the vertical installation of cydariform of excitation, has the power transmission shaft 1 that is connected in the switching manipulation transmission mechanism, it is threaded onto in the upper bracket 2, power transmission shaft first line of a couplet switch operating mechanism 5, the lower end connects insulation axle 4, the insulation axle is gone up and by supporter 12 moving contact 7 is housed, it engages with two fixed contacts on being fixed in insulating cylinder 3, the arc-extinguish chamber 6 of insulating cylinder 3 and overcoat is isolated from the outside the internally charged body of switch, further reduce the switch external diameter, for the big switch of electric current only multi-parallel moving contact 7 numbers just can realize that the switch external diameter is constant, length increases few.This switch can directly horizontally be installed on transformer one side, also can vertically be installed among the alternate slit of transformer coil.
This switch motion location drawing following (rotation of switch spindle clockwise direction):
1 grade of---neutral gear---2 grades of---3 grades of------4 grades---5 grades of neutral gear.
Moving contact can not be in and connect 1-2,3-4 (neutral gear) position, will take structural measure on the switch operating mechanism, guarantees that moving contact must not be in this two positions, generally between 1 grade and 5 grades mechanical position limitation is arranged simultaneously.
Respectively terminal mutually output contact X then constitutes the neutral point connection as linking to each other among this embodiment, and the main coil head end is continuous mutually with another as end output, then constitutes the dihedral connection, and the different switch built-in electrical insulation of connection level requires just different.
As be single-phase linear voltage regulation, then terminal directly output, its schematic diagram will only be a phase among Fig. 8.
During this switching manipulation, moving contact is crossed the dead point and is discharged, automatic homing, and feel is strong, and the reliability height is convenient to realize high voltage, high-current switch.
Lower as switching voltage, electric current is less, then moving contact can be designed to the clip type cage structure, the switch cost is low, is applicable to middle-size and small-size transformer, constitutes the cage type switch.
For the little current switch of single-phase low pressure, also can be designed to disk-shaped structure, be specially adapted to miniature transformer.
The utility model features simple structure, making is simple and easy, cost is low, can simplify transformer device structure greatly, reduce use cost, is convenient to Operation and Maintenance.
Claims (3)
1, the no excitation linear voltage regulation drum-shaped shunting switch of a kind of transformer, has switch upper bracket 2, undersetting 14, be coated with power transmission shaft 1 in the upper bracket, power transmission shaft top connects operating mechanism 5, with by supporter 12 bearing pin 9 is housed on the insulation axle 4 that power transmission shaft 1 links to each other, spring 8 and moving contact 7, moving contact 7 cross-over connections are in fixed contact 13 and export 15 of contacts, be installed with insulator 3 between last undersetting, it is characterized in that being installed with fixed contact 13 and output contact 15 corresponding to moving contact 7 on the insulator 3, the mutual short circuit of output contact X in every layer line accent structure, the moving contact cross-over connection is between fixed contact and output contact.
2, by the described no excitation linear voltage regulation drum-shaped shunting switch of claim 1, it is characterized in that the linear voltage regulation contact can be one deck constitute single-phase, but also between multilayer mutually insulated constitute heterogeneous, but also multilayer but the on-insulated formation parallel-connection structure of interlayer contact.
3,, but it is characterized in that each layer moving contact 7 homonymies arrange the layout of also can tossing about by the described no excitation linear voltage regulation drum-shaped shunting switch of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01212241 CN2468142Y (en) | 2001-01-09 | 2001-01-09 | Non-excitation linear voltage-regulating drum tap changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01212241 CN2468142Y (en) | 2001-01-09 | 2001-01-09 | Non-excitation linear voltage-regulating drum tap changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2468142Y true CN2468142Y (en) | 2001-12-26 |
Family
ID=33631472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01212241 Expired - Lifetime CN2468142Y (en) | 2001-01-09 | 2001-01-09 | Non-excitation linear voltage-regulating drum tap changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2468142Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933055B (en) * | 2006-09-12 | 2010-08-04 | 武汉泰普变压器开关有限公司 | Non-field cage-shape tap changer for transformer |
| 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 |
-
2001
- 2001-01-09 CN CN 01212241 patent/CN2468142Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933055B (en) * | 2006-09-12 | 2010-08-04 | 武汉泰普变压器开关有限公司 | Non-field cage-shape tap changer for transformer |
| 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 | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110109 Granted publication date: 20011226 |