CN201966090U - Built-in switch device of three-phase transformer - Google Patents
Built-in switch device of three-phase transformer Download PDFInfo
- Publication number
- CN201966090U CN201966090U CN2010206658568U CN201020665856U CN201966090U CN 201966090 U CN201966090 U CN 201966090U CN 2010206658568 U CN2010206658568 U CN 2010206658568U CN 201020665856 U CN201020665856 U CN 201020665856U CN 201966090 U CN201966090 U CN 201966090U
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- CN
- China
- Prior art keywords
- arc
- extinguish chamber
- electromagnet
- location guide
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a technical scheme for a switch device of a three-phase transformer. The switch device in the technical scheme comprises three lead-in connecting terminals and three lead-out connecting terminals, wherein three knife switch moving contacts are arranged on the three lead-in connecting terminals, three static contacts are arranged on the three lead-out connecting terminals, a knife switch is arranged inside a sealed casing which holds insulating fluid therein, arc extinction shields are arranged outside the knife switch, the moving contact of the knife switch moves under the drive of the arc extinction shields, the arc extinction shields are fixedly connected with each other through a connecting rod, and a first return spring is fixed between one of the arc extinction shields and a baffle plate and is sheathed on the connecting rod; a first electromagnet is arranged at one end of the casing, and a fixed guide rod locking device is arranged at the other end of the casing. The switch device provided in the technical scheme is arranged inside the transformer, and the power-on and power-off of the transformer are conducted inside the transformer. The switch device can conduct effective and timely arc extinction so as to avoid occurrence of accidents.
Description
Technical field
The utility model relates to a kind of switch, especially a kind of three-phase transformer built-in switch device.
Background technology
In the prior art, technique known be transformer in use, all be by external control, realize energising and outage to transformer, everybody can operate like this,, therefore if during the promise breaking electricity consumption, can't in time realize transmission or not control to the transformer of promise breaking electricity consumption, this is the existing in prior technology weak point.
Summary of the invention
The purpose of this utility model is exactly at the existing in prior technology deficiency, and provide a kind of technical scheme of three-phase transformer built-in switch device, the switching device of this scheme is arranged in the transformer, finish the energising and the outage of transformer in transformer inside, and arc extinguishing is avoided the generation of accident effectively and timely.
This programme is realized by following technology: a kind of three-phase transformer built-in switch device, comprise and three inlet wire binding posts and three outlet binding posts, the characteristics of this programme are: described three inlet wire binding posts are provided with three cutter formula switch moving contacts, three outlet binding posts are provided with three fixed contacts, described cutter formula switch is arranged in the housing that fills dielectric, be provided with baffle plate in the housing, the outer setting of described cutter formula switch has the arc-extinguish chamber of suspension, the moving contact of cutter formula switch moves under the drive of arc-extinguish chamber, fixedly connected between the arc-extinguish chamber by connecting rod, be fixed with first back-moving spring between described arc-extinguish chamber and baffle plate, first back-moving spring is enclosed within on the described connecting rod; One end of described housing is provided with first electromagnet, arc-extinguish chamber near first electromagnet, one end is connected by the moving iron core of a Metallic rod and first electromagnet, the other end at housing is provided with the location guide outlet, be provided with location guide between the arc-extinguish chamber of close location guide outlet and location guide outlet, the location guide exit is provided with the location guide locking device.
Described location guide locking device comprises the locking bar that is arranged on the location guide exit, described locking bar and housing flexibly connect, and be provided with second back-moving spring between locking bar and housing, side at locking bar is provided with second electromagnet, opposite side at described locking bar is provided with travel switch, the normally opened contact of travel switch is connected with the second battery iron, and the normally-closed contact of travel switch is connected with first electromagnet.
The bottom of described arc-extinguish chamber and the shape of housing bottom are coincide, and the top of arc-extinguish chamber is provided with fluid hole and cutter formula switch moving contact track, is provided with liquid flow hole in the front-end and back-end of arc-extinguish chamber.
Be provided with compression spring between described cutter formula switch moving contact and arc-extinguish chamber, compression spring contacts with the moving contact of cutter formula switch by a contact ball, and arc-extinguish chamber is provided with the compression spring track.
Described housing is provided with relief valve.
The beneficial effect of this programme can learn according to the narration to such scheme, because three inlet wire binding posts are connected with external electrical network in this scheme, three outlet binding posts are connected with the transformer high-voltage winding, switching that can control transformer; The outer setting of cutter formula switch has arc-extinguish chamber, can arc extinguishing; The moving contact of cutter formula switch and arc-extinguish chamber servo-actuated can realize that by the connecting rod connection three cutter formula switches are synchronous between the arc-extinguish chamber, energising simultaneously or outage; Arc-extinguish chamber near first electromagnet, one end is connected by the moving iron core of a Metallic rod and first electromagnet, be fixed with first back-moving spring between the baffle plate of arc-extinguish chamber and shell, after the energising of first electromagnet, can spur three arc-extinguish chambers by Metallic rod, make cutter formula switch be disconnected, first back-moving spring is compressed simultaneously, the storage elastic potential energy; Through hole is arranged on the baffle plate, can not stop flowing of dielectric, Metallic rod can be iron.
The other end at housing is provided with the location guide outlet, be provided with location guide between the arc-extinguish chamber of close location guide outlet and location guide outlet, the location guide exit is provided with the location guide locking device, described location guide locking device comprises the locking bar that is arranged on the location guide exit, described locking bar and housing flexibly connect, be provided with second back-moving spring between locking bar and housing, side at locking bar is provided with second electromagnet, when arc-extinguish chamber is spurred by first electromagnet, second back-moving spring resets locking bar and blocks the location guide outlet, then arc-extinguish chamber can not be got back to original position, and three cutter formula switches all keep disconnecting the first back-moving spring accumulation of energy; In the time of will switching on to transformer, give the energising of second electromagnet earlier, then locking bar departs from the location guide outlet under the effect of second electromagnet, and arc-extinguish chamber moves under the elastic force of first back-moving spring, and three cutter formula switches are all closed, and transformer is logical.
For first electromagnet and second electromagnet, all can remote control switch, also direct control switch, bring convenience to use, and can not have under the situation of electricity at three-phase transformer, open by controlling second electromagnet, realize the closure of three cutter formula switches, three-phase transformer is connected with external electrical network; In addition, also have the normally-closed contact of a travel switch to connect with first electromagnet, the normally opened contact of travel switch is connected with second electromagnet, and the Lock effect guarantees that first electromagnet and second electromagnet can only have a connection under corresponding state.
Be provided with compression spring between the moving contact of cutter formula switch and the arc-extinguish chamber, be provided with one between the moving contact of compression spring and cutter formula switch and contact ball, when cutter formula switch closure, compression spring can compress moving contact and fixed contact, when arc extinguishing was covered with motion, can also play cushioning effect; During disconnection, moving contact is promoted by the arc-extinguish chamber housing, separates with fixed contact; Fluid hole is arranged on the arc-extinguish chamber, when arc-extinguish chamber moves, make things convenient for flowing of dielectric, play the effect of arc extinguishing; The front-end and back-end of arc-extinguish chamber are provided with liquid flow hole, in the arc-extinguish chamber motion process, make things convenient for the dielectric arc extinguishing that flows; During arc extinguishing, can produce high temperature, the pressure in the housing can increase, and relief valve can discharge excessive pressure in the housing, avoids the excessive generation of pressure dangerous.This shows that the present invention compared with prior art has outstanding substantive distinguishing features and obvious improvement, the beneficial effect of its enforcement also is conspicuous.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is the A portion enlarged diagram among Fig. 2.
Fig. 4 is the right view of Fig. 1.
Fig. 5 is the B portion enlarged diagram among Fig. 4.
Fig. 6 is the vertical view of arc-extinguish chamber.
Fig. 7 is the arc-extinguish chamber stereogram.
Fig. 8 is the control electrical schematic diagram of first electromagnet and second electromagnet.
Among the figure, 1 is the inlet wire binding post, and 2 is housing, 3 is first electromagnet, and 4 is the location guide locking device, and 5 is relief valve, 6 are the outlet binding post, and 7 is baffle plate, and 8 is arc-extinguish chamber, 9 is connecting rod, and 10 is cutter formula switch moving contact, and 11 is first back-moving spring, 12 is Metallic rod, and 13 is cutter formula switch fixed contact, and 14 is location guide, 15 is liquid flow hole, 16 is through hole, and 17 are the contact ball, and 18 is compression spring, 19 is the compression spring track, 20 is second electromagnet, and 21 is locking bar, and 22 is second back-moving spring, 23 are the location guide outlet, 24 is travel switch, and 25 is cutter formula switch moving contact track, and 26 is fluid hole, 27 is the travel switch normally-closed contact, and 28 is the travel switch normally opened contact.
Embodiment
For the technical characterstic of this programme can clearly be described,, and in conjunction with the accompanying drawings, this programme is described below by an embodiment.
By accompanying drawing as can be seen, the three-phase transformer built-in switch device of this programme, a kind of three-phase transformer built-in switch device, comprise and three inlet wire binding posts 1 and three outlet binding posts 6, described three inlet wire binding posts 1 are provided with three cutter formula switch moving contacts 10, three outlet binding posts 6 are provided with three fixed contacts 13, described cutter formula switch is arranged in the housing 2 that fills dielectric, be provided with baffle plate 7 in the housing 2, the outer setting of described cutter formula switch has the arc-extinguish chamber 8 of suspension, the moving contact 10 of cutter formula switch moves under the drive of arc-extinguish chamber 8, fixedly connected between the arc-extinguish chamber 8 by connecting rod 9, having only 7 on an arc-extinguish chamber 8 and baffle plate to be fixed with first back-moving spring, 11, the first back-moving springs 11 in the present embodiment is enclosed within on the described connecting rod 9; One end of described housing 2 is provided with first electromagnet 3, arc-extinguish chamber 8 near first electromagnet, 3 one ends is connected with first electromagnet 3 by a Metallic rod 12, the other end at housing 2 is provided with location guide outlet 23, arc-extinguish chamber 8 and 23 of location guide outlets near location guide outlet 23 are provided with location guide 14, and location guide exports 23 places and is provided with location guide locking device 4.
Described location guide locking device 4 comprises and is arranged on the locking bar 21 that location guide exports 23 places, described locking bar 21 flexibly connects with housing 2, and 2 of locking bar 21 and housings are provided with second back-moving spring 22, side at locking bar 21 is provided with second electromagnet 20, opposite side at described locking bar 21 is provided with travel switch 24, the normally opened contact 28 of travel switch 24 is connected with the second battery iron 20, and the normally-closed contact 27 of travel switch 24 is connected with first electromagnet 3.
The shape of the bottom of described arc-extinguish chamber 8 and housing 2 bottoms is coincide, and the top of arc-extinguish chamber 8 is provided with fluid hole 26 and cutter formula switch moving contact track 25, is provided with liquid flow hole 15 in the front-end and back-end of arc-extinguish chamber 8.
Described cutter formula switch moving contact 10 and 8 of arc-extinguish chambers are provided with compression spring 18, and compression spring 18 contacts with the moving contact 10 of cutter formula switch by a contact ball 17, and arc-extinguish chamber 8 is provided with compression spring track 19.
Described housing 2 is provided with relief valve 5.
During use, when stopping to cut off the power supply to transformer, give first electromagnet 3 energisings, 20 outages of second electromagnet, first electromagnet 3 attracts Metallic rod 12 to move to the direction of first electromagnet 3, three arc-extinguish chambers 8 of Metallic rod 12 pullings, and the moving contact 10 of arc-extinguish chamber 8 band moving-blade switches moves, make cutter formula switch be disconnected, stop power supply, first back-moving spring 11 is compressed simultaneously, and the locking bar 21 of housing 2 opposite sides is under the effect of second back-moving spring 22, block location guide outlet 23, then arc-extinguish chamber 8 can not be got back to original position, and cutter formula switch keeps disconnecting, and travel switch 24 is subjected to the effect of locking bar 21, normally-closed contact 27 disconnects, normally opened contact 28 closures, the current supply circuit of the first ground electromagnet 3 is disconnected, and does not give this moment second electromagnet 20 power supplies, because first back-moving spring 11 has been assembled elastic potential energy, prepares for sending electricity next time; In the time of will switching on to transformer, because the normally opened contact 28 of travel switch 24 is closed, can directly give second electromagnet 20 energisings by external power source, locking bar 21 departs from location guide outlet 23 under the effect of second electromagnet 20, arc-extinguish chamber 8 moves to an end at second electromagnet, 20 places under the elastic force of first back-moving spring 11, the moving contact 10 of arc-extinguish chamber 8 band moving-blade switches moves, cutter formula switch closure, the transformer energising, because locking bar 21 departs from the location guide outlet, then travel switch 24 also resets, normally opened contact disconnects 20 outages of 28, the second electromagnet, because location guide 14 blocks locking bar 21 which can not reset, second back-moving spring 22 has been assembled elastic potential energy, for outage next time is prepared.
Claims (7)
1. three-phase transformer built-in switch device, comprise and three inlet wire binding posts and three outlet binding posts, it is characterized in that: described three inlet wire binding posts are provided with three cutter formula switch moving contacts, three outlet binding posts are provided with three fixed contacts, described cutter formula switch is arranged in the housing that fills dielectric, be provided with baffle plate in the housing, the outer setting of described cutter formula switch has the arc-extinguish chamber of suspension, the moving contact of cutter formula switch moves under the drive of arc-extinguish chamber, fixedly connected between the arc-extinguish chamber by connecting rod, be fixed with first back-moving spring between described arc-extinguish chamber and baffle plate, first back-moving spring is enclosed within on the described connecting rod; One end of described housing is provided with first electromagnet, arc-extinguish chamber near first electromagnet, one end is connected with first electromagnet by a Metallic rod, the other end at housing is provided with the location guide outlet, be provided with location guide between the arc-extinguish chamber of close location guide outlet and location guide outlet, the location guide exit is provided with the location guide locking device.
2. three-phase transformer switching device according to claim 1, it is characterized in that: described location guide locking device comprises the locking bar that is arranged on the location guide exit, described locking bar and housing flexibly connect, and be provided with second back-moving spring between locking bar and housing, be provided with second electromagnet in a side of locking bar.
3. three-phase transformer switching device according to claim 1, it is characterized in that: the bottom of described arc-extinguish chamber and the shape of housing bottom are coincide, the top of arc-extinguish chamber is provided with fluid hole and cutter formula switch moving contact track, is provided with liquid flow hole in the front-end and back-end of arc-extinguish chamber.
4. according to claim 1 or 3 described three-phase transformer switching devices, it is characterized in that: be provided with compression spring between described cutter formula switch moving contact and arc-extinguish chamber, compression spring contacts with the moving contact of cutter formula switch by a contact ball, and arc-extinguish chamber is provided with the compression spring track.
5. three-phase transformer switching device according to claim 1 is characterized in that: described baffle plate is provided with through hole.
6. three-phase transformer switching device according to claim 1 is characterized in that: described housing is provided with relief valve.
7. three-phase transformer switching device according to claim 1 and 2, it is characterized in that: the opposite side that second electromagnet is set at described locking bar is provided with travel switch, the normally opened contact of travel switch is connected with the second battery iron, and the normally-closed contact of travel switch is connected with first electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206658568U CN201966090U (en) | 2010-12-17 | 2010-12-17 | Built-in switch device of three-phase transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206658568U CN201966090U (en) | 2010-12-17 | 2010-12-17 | Built-in switch device of three-phase transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201966090U true CN201966090U (en) | 2011-09-07 |
Family
ID=44528644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206658568U Expired - Lifetime CN201966090U (en) | 2010-12-17 | 2010-12-17 | Built-in switch device of three-phase transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201966090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034637A (en) * | 2010-12-17 | 2011-04-27 | 秦传勇 | Inbuilt switch device of three-phase transformer |
-
2010
- 2010-12-17 CN CN2010206658568U patent/CN201966090U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102034637A (en) * | 2010-12-17 | 2011-04-27 | 秦传勇 | Inbuilt switch device of three-phase transformer |
| CN102034637B (en) * | 2010-12-17 | 2013-01-02 | 秦传勇 | Inbuilt switch device of three-phase transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110907 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |