CN2798292Y - High voltage knob type sulphur hexafluoride breaker - Google Patents
High voltage knob type sulphur hexafluoride breaker Download PDFInfo
- Publication number
- CN2798292Y CN2798292Y CN 200520042175 CN200520042175U CN2798292Y CN 2798292 Y CN2798292 Y CN 2798292Y CN 200520042175 CN200520042175 CN 200520042175 CN 200520042175 U CN200520042175 U CN 200520042175U CN 2798292 Y CN2798292 Y CN 2798292Y
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- contact
- current transformer
- framework
- arc
- outlet board
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Abstract
The utility model relates to a high voltage sulfur hexafluoride circuit breaker of a knob insulator type, which comprises a framework, supporting frames, an operating mechanism and circuit breakers, wherein the framework is vertically provided with three single-pole circuit breakers, both ends of the framework are provided with the supporting frames, the operating mechanism is arranged below the framework and the three circuit breakers are respectively connected with the framework. The utility model is characterized in that each circuit breaker is composed of a cooling cap, an upper outgoing line board, an arc extinguishing chamber, a current transformer device, a lower outgoing line board and an insulating support column; an arc extinguishing device composed of the cooling cap, the upper outgoing line board and the arc extinguishing chamber is arranged above the current transformer device, the lower outgoing line board and the insulating support column are arranged below the current transformer device. The utility model has the advantages of light structure, and original and exquisite appearance, and can satisfy the requirements of the number of the transformers from different users; the arc extinguishing device has few sealing surfaces, few leak sources, low leakage rate and high reliability, adopts a principle of self-energy arc extinction, and has the advantages of simple structure and low price.
Description
Technical field
The utility model relates to a kind of high pressure porcelain knob sulfur hexafluoride breaker, can be used for the control and the protection of 35kV power transmission and transformation line, can cut, close the capacitor group, also can be used as network interconnecting circuit and uses, and belongs to circuit breaker
Technical field.
Background technology
At present in 35kV and the 40.5kV network system, the main LW8-40.5 high pressure pot type sulfur hexafluoride breaker that uses, its structure is by advancing, the outlet cap, advance, the outlet insulator, two groups of current transformers, instrument transformer connects sheath, absorber, arc-control device, underframe, transmission case, kinematic link, composition such as tripping spring and operating mechanism, this arc-control device adopts the air pressing type arc quenching principle, the circuit breaker of this air pressing type arc quenching principle, the output work of its required operating mechanism is big, therefore this breaker structure is complicated, the cast aluminium alloys that adopt more, shell as arc-control device, the shell of current transformer, sealing surface is more, the aluminum casting shrinkage cavity is many, air-tightness be cannot say for sure to demonstrate,prove, in order to guarantee air-tightness, requirement to aluminum casting and metalworking thereof is all very high, the transmission crank arm case is a weldment, takes material, when taking a lot of work, poor air-tightness, therefore leak rate sees the cost height of circuit breaker on the whole also than higher.
Summary of the invention
To be that invention is a kind of improve the quality, reduce cost, reduce gas leakage, high pressure porcelain knob sulfur hexafluoride breaker simple in structure to the purpose of this utility model.
For realizing above purpose, the technical solution of the utility model provides a kind of high pressure porcelain knob sulfur hexafluoride breaker, comprise framework, bracing frame, operating mechanism, circuit breaker, on framework, vertically be provided with three single-pole circuit breakers, the framework two ends are provided with bracing frame, below framework, be provided with operating mechanism, it connects three single-pole circuit breakers respectively, it is characterized in that, described single-pole circuit breaker is by cooling headgear, last outlet board, arc control device, current transformer device, following outlet board, insulation column is formed, above current transformer device, be provided with by cooling headgear, the arc-control device that last outlet board and arc control device are formed is provided with outlet board and insulation column down below current transformer device.
Described arc control device are formed the centre by stationary contact headstock, quiet arc contact, main static contact finger, spout, moving main contact, middle fingertip, middle contact base, piston, air cylinder, interrupting porcelain insulator, moving arcing contact, last outlet board
Contact base is located at the centre of interrupting porcelain insulator bottom, middle fingertip is located on the middle contact base, the air cylinder that the centre is provided with piston places in the middle fingertip, moving main contact, moving arcing contact are connected with air cylinder, spout places the upper end of moving main contact, the stationary contact headstock is located at the upper end of spout, and quiet arc contact and main static contact finger are located in the stationary contact headstock, and the stationary contact headstock places on the last outlet board at top of interrupting porcelain insulator.
Described current transformer device comprises conducting rod, shell, current transformer, stationary pipes, go out spool, shielding cylinder, conducting rod is located at the centre of shell, one end is fixed on down on the outlet board by axle sleeve, the other end is connected to form a galvanic circle by fingertip and conducting ring, insulating base is fixed on down on the outlet board, outside conducting rod, be provided with stationary pipes, outside stationary pipes, be provided with at least three group current transformers, its lower end places on the insulator, the other end passes through pressure ring, pressing plate is fixed, be provided with shielding cylinder outside current transformer, the flange in the stationary pipes lower end is provided with out spool, outlet passes from go out spool.
Described insulation column is made up of strut porcelain bushing, insulated tension pole, translation seal flange, translation seal bar, insulated tension pole is located at the centre of strut porcelain bushing, the upper end links to each other with the pull bar of moving contact in the arc-control device by conducting rod, the lower end links to each other with the translation seal bar, the translation seal flange is fixed in the lower end of strut porcelain bushing, the translation seal bar is connected in the insulated tension pole lower end, and passes the translation seal flange and be connected with the output pull bar of operating mechanism.
The utility model adopts current transformer to place the centre of arc control device and post insulator; the primary current conducting rod of flowing through; pass the current transformer center and produce magnetic flux; in secondary coil, produce induced current; this induced current starts the protective relaying device action; program in accordance with regulations makes the relevant device action, system is played the effect of control and protection.
The utility model selects for use good insulation preformance, good mechanical property, high voltage porcelain bushing that air-tightness is good to replace the cast aluminium alloy shell of potting breaker, and bear insulation against ground, not only reduced cost, also reduce leak rate and improved product quality, guaranteed the circuit breaker reliability of operation, simultaneously that wasted work is big air pressing type arc extinguishing structure changes the little self extinguishing type arc extinguishing structure of wasted work into, better meets the requirement of breaker mechanic property.
The utility model has improved current transformer casing, and by user's different needs, every circuit breaker can be installed 6～12 current transformers.
The utility model is the rotational sealing structure that the transmission device of present 35kv system break road device adopts, change into relatively simple for structure, the translation seal structure of technical also comparative maturity, structure is greatly simple.
The utility model has the advantages that:
1. structure is light and handy, outward appearance is novel, exquisite;
2. can satisfy the demand of different user to instrument transformer quantity;
3 arc-control device sealing surfaces are few, and leak source is few, leak rate is low, reliability is high;
4 adopt the self-energy quenching arc principles, simple in structure, price is lower, social benefit good.
Description of drawings
Fig. 1 is a high pressure porcelain knob sulfur hexafluoride breaker structural representation;
Fig. 2 is the arc quenching chamber structure schematic diagram:
Fig. 3 is the current transformer device structural representation:
Fig. 4 is the insulation column structural representation
Fig. 5 is the breaker structure schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 1, be high pressure porcelain knob sulfur hexafluoride breaker structural representation, described high pressure porcelain knob sulfur hexafluoride breaker comprises framework 7, bracing frame 8, operating mechanism 9, single-pole circuit breaker 10, two bracing frame 8 each bolts with 4 M20 are installed in lower end, framework 7 both sides, become the pedestal of circuit breaker, vertically be fixed on the basis, ground, operating mechanism 9 is installed in framework 7 belows by the bolt of 4 M20, three single-pole circuit breakers 10 vertically are contained on the same framework 7 then, have formed a high pressure sulfur hexafluoride breaker.
Described circuit breaker 10 is made up of cooling headgear 1, last outlet board 2, arc control device 3, current transformer device 4, following outlet board 5, insulation column 6, the bolt of cooling headgear 1 by 10 M12 connects together last outlet board 2 and arc control device 3 and constituted arc-control device, arc-control device connects together by the bolt of 10 M12 and the top of current transformer device 4 again, and the bolt by 10 M12 connects together with following outlet board 5, insulation column 6 etc. and constituted a single-pole circuit breaker 10 again in the lower end of current transformer device 4.
As shown in Figure 2, be the arc quenching chamber structure schematic diagram, described arc control device 3 are by stationary contact headstock 11, quiet arc contact 12, main static contact finger 13, spout 14, moving main contact 15, middle fingertip 16, middle contact base 17, piston 18, air cylinder 19, interrupting porcelain insulator 20, moving arcing contact 21, last outlet board 22 is formed, interrupting porcelain insulator 20, above-mentioned parts have in addition been formed arc-control device, be installed in the upper end of current transformer 3, middle contact base 17 is located in the middle of the interrupting porcelain insulator 20, also place the top of current transformer, air cylinder 19 is contained between middle fingertip 16 and the piston 18, moving main contact 15, moving arcing contact 21 is connected with an assembly of air cylinder 19, constituted the trigger device of a rigidity, spout 14 is installed in the upper end of moving main contact 15, quiet arc contact 12 and main static contact finger 13 are all installed on the stationary contact headstock 11, they are above spout 14, and stationary contact headstock 11 is fixed on the last outlet board 22 at top of interrupting porcelain insulator 20.
As shown in Figure 3, be the current transformer device structural representation, described current transformer device 4 comprises conducting rod 24, shell 26, current transformer 29, stationary pipes 30, go out spool 33, outlet 34, shielding cylinder 35, conducting rod 24 is installed in the centre of shell 26, one end is fixed on down on the outlet board 5, the other end is connected to form a galvanic circle by fingertip 25 and conducting ring 40, insulating base 23 is fixed on down on the outlet board 5, the conducting rod 24 outer stationary pipes 30 that are with, 2～4 current transformers 29 are housed outside stationary pipes 30, they place on the insulator 31, the other end is by pressure ring 27, pressing plate 28 is fixed and clamped, outside current transformer 29, put shielding cylinder 35, installed spool 33 at the flange of stationary pipes 30 lower ends, outlet 34 passes from go out spool 33, and shielding cylinder 24 changes the aluminium sheet mould pressing into, the part that processes like this, good manufacturability, in light weight, avoided the damage of current mutual inductor coil, presentation quality is good, has reduced cost simultaneously.
As shown in Figure 4, be the insulation column structural representation, described insulation column 6 is made up of strut porcelain bushing 36, insulated tension pole 37, translation seal flange 38, translation seal bar 39, insulated tension pole 37 is located at the centre of strut porcelain bushing 36, translation seal flange 38 is fixed in the lower end of strut porcelain bushing 36, translation seal bar 39 is connected in insulated tension pole 37 lower ends, and passes translation seal flange 38 and be connected with operating mechanism 9.
As shown in Figure 5, be the breaker structure schematic diagram, assemble single-pole circuit breaker 10 at last, described single-pole circuit breaker 10 is by cooling headgear 1, last outlet board 2, arc control device 3, current transformer device 4, following outlet board 5, insulation column 6 is formed, the bolt of cooling headgear 1 by 10 M12 connects together last outlet board 2 and arc control device 3 and constituted arc-control device, arc-control device links together by the bolt of 10 M12 and the top of current transformer device 4 again, the pull bar that moving main contact 15 in the arc control device 3 links together, the upper end of passing conducting rod 24 and insulated tension pole in the current transformer device 4 links together.Lower end at current transformer device 4 connects together with following outlet board 5, insulation column 6 etc. by the bolt of 10 M12 again, is fixed on then on the translation seal flange 38, has finally constituted a single-pole circuit breaker 10.
During work; primary cut-out is main protection and the control action of rising in system; fault current when system breaks down on the circuit; flow through circuit breaker by last outlet board 22; stationary contact headstock 11 quiet main contacts 1; moving contact 15; air cylinder 19; middle fingertip 16; middle contact base 17; conducting ring 40; fingertip 25; the main conductive circuit that 24 times outlet boards of conducting rod 5 constitute; at this moment electric current flows through conducting rod 24 generation magnetic fluxs; then on the secondary coil of current transformer 29, produce induced current; induced current feeds back to the master-control room of transformer station; the start protection action; send the separating brake instruction; the switching winding of operating mechanism 9 is charged; make separating brake motion unshakable in one's determination; operating mechanism 9 separating brake pallets are triped, the reliable separating brake of circuit breaker under the effect of tripping spring.
Be in gate-dividing state as circuit breaker, the switching-in spring of spring operating mechanism 9 has stored up energy, at this moment system will put into operation, and master-control room sends reclosing command, and mechanism receives after the switching signal, closing coil is charged, the motion of the making electromagnet heart, making closes a floodgate keeps triping, under the effect of switching-in spring, drive the shackle rod motion in the circuit breaker underframe, shackle rod drives translation seal bar 39, insulated tension pole 37 and moving contact 15 circuit breaker that moves upward again and reliably closes a floodgate.At this moment electric motor starting is that reclosing operation is ready to the switching-in spring energy storage.
Claims (4)
1. high pressure porcelain knob sulfur hexafluoride breaker, comprise framework (7), bracing frame (8), operating mechanism (9), circuit breaker (10), on framework (7), vertically be provided with three single-pole circuit breakers (10), framework (7) two ends are provided with bracing frame (8), be provided with operating mechanism (9) in framework (7) below, it connects three single-pole circuit breakers (10) respectively, it is characterized in that, described single-pole circuit breaker (10) is by cooling headgear (1), last outlet board (2), arc control device (3), current transformer device (4), following outlet board (5), insulation column (6) is formed, be provided with by cooling headgear (1) in the top of current transformer (4), the arc-control device that last outlet board (2) and arc control device (3) are formed is provided with outlet board (5) and insulation column (6) down in the below of current transformer (4).
2. high pressure porcelain knob sulfur hexafluoride breaker according to claim 1, it is characterized in that, described arc control device (3) are by stationary contact headstock (11), quiet arc contact (12), main static contact finger (13), spout (14), moving main contact (15), middle fingertip (16), middle contact base (17), piston (18), air cylinder (19), interrupting porcelain insulator (20), moving arcing contact (21), last outlet board (22) is formed, middle contact base (17) is located at the centre of interrupting porcelain insulator (20) bottom, middle fingertip (16) is located on the middle contact base (17), the air cylinder (19) that the centre is provided with piston (18) places middle fingertip (16) lining, moving main contact (15), moving arcing contact (21) is connected with air cylinder (19), spout (14) places the upper end of moving main contact (15), stationary contact headstock (11) is located at the upper end of spout (14), quiet arc contact (12) and main static contact finger (13) are located at stationary contact headstock (11) lining, and stationary contact headstock (11) places on the last outlet board (22) at top of interrupting porcelain insulator (20).
3. high pressure porcelain knob sulfur hexafluoride breaker according to claim 1, it is characterized in that, described current transformer device (4) comprises conducting rod (24), shell (26), current transformer (29), stationary pipes (30), go out spool (33), (34), shielding cylinder (35), conducting rod (24) is located at the centre of shell (26), one end is fixed on down on the outlet board (5) by axle sleeve (32), the other end is connected to form a galvanic circle by fingertip (25) and conducting ring (40), insulating base (23) is fixed on down on the outlet board (5), outside conducting rod (24), be provided with stationary pipes (30), outside stationary pipes (30), be provided with at least three group current transformers (29), its lower end places on the insulator (31), the other end is by pressure ring (27), pressing plate (28) is fixing, be provided with shielding cylinder (35) outside current transformer (29), the flange in stationary pipes (30) lower end is provided with out spool (33), outlet (34) passes from go out spool (33).
4. high pressure porcelain knob sulfur hexafluoride breaker according to claim 1, it is characterized in that, described insulation column (6) is by strut porcelain bushing (36), insulated tension pole (37), translation seal flange (38), translation seal bar (39) is formed, insulated tension pole (37) is located at the centre of strut porcelain bushing (36), the upper end links to each other with the pull bar of moving contact (15) in the arc-control device by conducting rod (24), the lower end links to each other with translation seal bar (39), translation seal flange (38) is fixed in the lower end of strut porcelain bushing (36), translation seal bar (39) is connected in insulated tension pole (37) lower end, and passes translation seal flange (38) and be connected with the output pull bar of operating mechanism (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520042175 CN2798292Y (en) | 2005-06-06 | 2005-06-06 | High voltage knob type sulphur hexafluoride breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520042175 CN2798292Y (en) | 2005-06-06 | 2005-06-06 | High voltage knob type sulphur hexafluoride breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2798292Y true CN2798292Y (en) | 2006-07-19 |
Family
ID=36869539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520042175 Expired - Lifetime CN2798292Y (en) | 2005-06-06 | 2005-06-06 | High voltage knob type sulphur hexafluoride breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2798292Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401153A (en) * | 2013-07-31 | 2013-11-20 | 中国西电电气股份有限公司 | Integration device for electronic current transformer and circuit breaker |
| CN105655190A (en) * | 2016-04-07 | 2016-06-08 | 山东泰开高压开关有限公司 | Novel integrated circuit breaker of non-segregated combined electrical apparatus |
| CN109859981A (en) * | 2018-12-25 | 2019-06-07 | 江苏省如高高压电器有限公司 | Reactive compensation operating condition definite purpose circuit breaker makees in a kind of 550KV substation |
-
2005
- 2005-06-06 CN CN 200520042175 patent/CN2798292Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401153A (en) * | 2013-07-31 | 2013-11-20 | 中国西电电气股份有限公司 | Integration device for electronic current transformer and circuit breaker |
| CN103401153B (en) * | 2013-07-31 | 2015-11-25 | 中国西电电气股份有限公司 | The integrating device of a kind of electronic current mutual inductor and circuit breaker |
| CN105655190A (en) * | 2016-04-07 | 2016-06-08 | 山东泰开高压开关有限公司 | Novel integrated circuit breaker of non-segregated combined electrical apparatus |
| CN109859981A (en) * | 2018-12-25 | 2019-06-07 | 江苏省如高高压电器有限公司 | Reactive compensation operating condition definite purpose circuit breaker makees in a kind of 550KV substation |
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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: 20150606 Granted publication date: 20060719 |