CN202172043U - Vacuum load isolation switch with fuse - Google Patents
Vacuum load isolation switch with fuse Download PDFInfo
- Publication number
- CN202172043U CN202172043U CN2011202778673U CN201120277867U CN202172043U CN 202172043 U CN202172043 U CN 202172043U CN 2011202778673 U CN2011202778673 U CN 2011202778673U CN 201120277867 U CN201120277867 U CN 201120277867U CN 202172043 U CN202172043 U CN 202172043U
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- row
- insulator
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- fuse
- rotation axis
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Abstract
The utility model discloses a vacuum load isolation switch with a fuse, comprising a grounding frame and an operation mechanism. The grounding frame is fixedly provided with three rows of insulators. The front end of the first row of insulators is fixedly provided with a vacuum explosion chamber, the upper end of which is in connection with a high pressure input bus and the lower end of which is provided with a fixed contact. The front end of the second row of insulators is fixedly provided with a conductive plate, the upper end of which is provided with is a fixed contact and the lower end of which is provided with an upper fuse seat. The third row of insulators is fixedly provided with a conductive connection plate, the upper end of which is provided with a lower fuse seat and the lower end of which is in connection with a high pressure output bus. Three fuses are respectively fixed between the upper fuse seat and the lower fuse seat; the lower ends of the three switches are respectively hinged to the fixed contact of the conductive plate. The grounding frame is provided with a rotary shaft fixedly provided with three connecting levers; the rotary shaft is in connection with the operation mechanism; three insulation pull bars are arranged between the central section of the three switches and the upper end of the three connecting levers. The vacuum load isolation switch with a fuse has a compact structure and high reliability of closing operation.
Description
Technical field
The utility model relates to the high voltage isolator technical field, especially a kind of vacuum-load isolating switch that has fuse.
Background technology
Existing high voltage isolator technical field; In switchgear, often integrate load-break switch and fuse with further saving manufacturing cost, dwindle the space of installation; Disclosing a patent No. on August 15th, 2007 is that ZL200620131870.3, name are called the utility model patent of " vacuum-load isolating switch fuse combined electric apparatus "; It comprises support, post insulator, on-load switch, isolating switch, fuse and transmission device; On first group of post insulator, respectively be provided with a vacuum interrupter, its movable contact is connected with pull bar, connecting lever, insulated tension pole, arc control device axle, establishes a pivot pin and pin card in the termination of this arc control device axle; The striker ejection door top of fuse is provided with the bump connecting lever, and this connecting lever connects the following bayonet lock of bump pull bar, backguy and arc control device axle, between first and second group post insulator, is provided with the isolation cutter shaft, and three insulated tension poles, three isolation knife are housed on this axle; The termination that isolates cutter shaft is provided with a pivot pin and pin card, isolates between cutter shaft and the support to be provided with a spring; Also be provided with close a floodgate axle and separating brake axle etc.; The structure more complicated of this utility model, and the reliability of transmission mechanism is lower.
The utility model content
The technical problem that the utility model will solve provides a kind of vacuum-load isolating switch that has fuse, compact conformation, and the breaking-closing operating reliability is high.
For achieving the above object, the technical scheme of the utility model is: a kind of vacuum-load isolating switch that has fuse comprises ground connection frame, operating mechanism; Along laterally fixing three arranging insulators from top to bottom, every row's insulator has three and vertical corresponding each other on the ground connection frame, and the front end of first row's insulator is fixed with vacuum interrupter; The upper end of vacuum interrupter connects the high pressure inlet highway, and the lower end of vacuum interrupter is provided with fixed contact, and the front end of second row's insulator is fixed with conductive plate; The upper end of conductive plate is provided with fixed contact; The lower end of conductive plate is provided with molten seat, is fixed with conductive connection plates on the 3rd row's the insulator, and the upper end of conductive connection plates is provided with down molten seat; The lower end of conductive connection plates connects high pressure output bus; Three fuses are separately fixed between the following molten seat of going up molten seat and the 3rd row's insulator front end conductive connection plates of second row's insulator front end conductive plate, and the lower end of three disconnecting links is hinged on respectively on the fixed contact of second row's insulator front end conductive plate, is installed with a rotation axis on the ground connection frame; Be fixed with three connecting levers on the rotation axis; Rotation axis connects operating mechanism, and three insulated pull bars are set between the upper end of three connecting levers of the middle part of three disconnecting links and rotation axis, and the connecting lever front end on middle part pivot joint, the other end and the rotation axis of every insulated pull bar one end and disconnecting link articulates.
Further; The molten seat of going up of said second row's insulator front end conductive plate all is hinged with the dropout connecting lever; Be installed with trip shaft on the ground connection frame, trip shaft connects operating mechanism and is related with rotation axis formation transmission in operating mechanism, is fixed with three connecting levers on the trip shaft; Between the upper end of three connecting levers of trip shaft and the lower end of three dropout connecting levers three insulated connecting rods are set, the upper end that insulated connecting rod one end and dropout connecting lever lower end articulate, the other end articulates connecting lever on the trip shaft.
Further again, described ground connection frame is provided with three earthing contacts, and the upper end engages with earthing contact during three disconnecting link separating brakes.
The utility model is provided with fixing three connecting levers of a rotation axis, drives the disconnecting link opening and closing lock through three insulated pull bars again, and structure is compact, and the reliability of breaking-closing operating is higher; Further; The hinged dropout connecting lever of molten seat on second row's insulator front end conductive plate, when the fuse blows of arbitrary phase, the striker bump dropout connecting lever action on the fuse; The dropout connecting lever rotates trip shaft through connecting lever on insulated connecting rod, the trip shaft again; The action of triggering operating mechanism makes the disconnecting link separating brake, can prevent phase-deficient operation; Further again, the ground connection frame is provided with three earthing contacts, and the upper end engages with earthing contact during three disconnecting link separating brakes, and is safer when carrying out maintenance work.
Description of drawings
Fig. 1 is the utility model "on" position front view.
Fig. 2 is the utility model "on" position left view.
Fig. 3 is the utility model gate-dividing state left view.
Embodiment
Below in conjunction with accompanying drawing and concrete execution mode the utility model is done further explain.
Fig. 1, Fig. 2, shown in Figure 3, a kind of vacuum-load isolating switch that has fuse comprises ground connection frame 1, operating mechanism 2; Arrange insulator 4, the 3rd row's insulator 5 along laterally fixing first row's insulator 3, second from top to bottom on the ground connection frame 1; First arranges insulator 3, second row's insulator 4 and the 3rd row's insulator 5 is three and vertical correspondence each other, and the front end of first row's insulator 3 is fixed with vacuum interrupter 6, and the upper end of vacuum interrupter 6 connects high pressure inlet highway 61; The lower end of vacuum interrupter 6 is provided with fixed contact 62; The front end of second row's insulator 4 is fixed with conductive plate 7, and the upper end of conductive plate 7 is provided with fixed contact 72, and the lower end of conductive plate 7 is provided with molten seat 71; Also be fixed with conductive connection plates 8 on the 3rd row's insulator 5; The upper end of conductive connection plates 8 is provided with down molten seat 81, and 82, three fuses 9 of lower end connection high pressure output bus of conductive connection plates 8 are separately fixed between the following molten seat 81 of going up molten the 71 and the 3rd row's insulator 5 front end conductive connection plates 8 of second row's insulator, 4 front end conductive plates 7; The lower end of three disconnecting links 10 is hinged on respectively on the fixed contact 72 of second row's insulator, 4 front end conductive plates 7; Be installed with a rotation axis 11 on the ground connection frame 1, be fixed with three connecting levers 111 on the rotation axis 11, rotation axis 11 connects operating mechanism 2; Three insulated pull bars 12 are set between the upper end of three connecting levers 111 of the middle part of three disconnecting links 10 and rotation axis 11, and connecting lever 111 front ends on middle part pivot joint, the other end and the rotation axis 11 of every insulated pull bar 12 1 ends and disconnecting link 10 articulate.
The molten seat 71 of going up of second row's insulator, 4 front end conductive plates 7 all is hinged with dropout connecting lever 13; Be installed with trip shaft 14 on the ground connection frame 1; Trip shaft 14 connects operating mechanism 2 and is related with rotation axis 11 formation transmissions in operating mechanism 2; Be fixed with three connecting levers 141 on the trip shaft 14; Between the upper end of 14 3 connecting levers 141 of trip shaft and the lower end of three dropout connecting levers 13 three insulated connecting rods 15 are set, the upper end that insulated connecting rod 15 1 ends and dropout connecting lever 13 lower ends articulate, the other end articulates connecting lever 141 on the trip shaft 14; When fuse 9 fusing; The striker of fuse 9 promotes dropout connecting lever 13; Dropout connecting lever 13 rotates trip shaft 14 through connecting lever 141 on insulated connecting rod 15 and the trip shaft 14 again, triggers operating mechanism 2 actions, makes the fixed contact 62 of its disengaging vacuum interrupter 6 lower ends, upper end of disconnecting link 10 separating brakes.
Fig. 2 shows that further the upper end of three disconnecting links 10 engages with the fixed contact 62 of vacuum interrupter 6 lower ends, is in "on" position this moment, and high pressure inlet highway 61 is connected with high pressure output bus 82.
Fig. 3 shows that further the fixed contact 62 of disengaging vacuum interrupter 6 lower ends, disconnecting link 10 upper ends engages with earthing contact 16 during three disconnecting link 10 separating brakes, and this moment, high pressure inlet highway 61 broke off with high pressure output bus 82 mutually.
Below only be preferred embodiment of the utility model, the change that those skilled in the art does to be equal to by claim all falls into the protection range of this case.
Claims (3)
1. a vacuum-load isolating switch that has fuse comprises ground connection frame, operating mechanism, it is characterized in that: arrange insulators along laterally fixing three from top to bottom on the ground connection frame; Every row's insulator has three and vertical corresponding each other, and the front end of first row's insulator is fixed with vacuum interrupter, and the upper end of vacuum interrupter connects the high pressure inlet highway; The lower end of vacuum interrupter is provided with fixed contact; The front end of second row's insulator is fixed with conductive plate, and the upper end of conductive plate is provided with fixed contact, and the lower end of conductive plate is provided with molten seat; Be fixed with conductive connection plates on the 3rd row's insulator; The upper end of conductive connection plates is provided with down molten seat, and the lower end of conductive connection plates connects high pressure output bus, and three fuses are separately fixed between the following molten seat of going up molten seat and the 3rd row's insulator front end conductive connection plates of second row's insulator front end conductive plate; The lower end of three disconnecting links is hinged on respectively on the fixed contact of second row's insulator front end conductive plate; Be installed with a rotation axis on the ground connection frame, be fixed with three connecting levers on the rotation axis, rotation axis connects operating mechanism; Three insulated pull bars are set between the upper end of three connecting levers of the middle part of three disconnecting links and rotation axis, and the front end of connecting lever articulates on middle part pivot joint, the other end and the rotation axis of every insulated pull bar one end and disconnecting link.
2. the vacuum-load isolating switch that has fuse according to claim 1; It is characterized in that: the molten seat of going up of said second row's insulator front end conductive plate all is hinged with the dropout connecting lever; Be installed with trip shaft on the ground connection frame; Trip shaft connects operating mechanism and is related with rotation axis formation transmission in operating mechanism; Be fixed with three connecting levers on the trip shaft, between the upper end of three connecting levers of trip shaft and the lower end of three dropout connecting levers three insulated connecting rods be set, the upper end that insulated connecting rod one end and dropout connecting lever lower end articulate, the other end articulates connecting lever on the trip shaft.
3. the vacuum-load isolating switch that has fuse according to claim 1 and 2 is characterized in that: described ground connection frame is provided with three earthing contacts, and the upper end engages with earthing contact during three disconnecting link separating brakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202778673U CN202172043U (en) | 2011-08-02 | 2011-08-02 | Vacuum load isolation switch with fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202778673U CN202172043U (en) | 2011-08-02 | 2011-08-02 | Vacuum load isolation switch with fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172043U true CN202172043U (en) | 2012-03-21 |
Family
ID=45830233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202778673U Expired - Fee Related CN202172043U (en) | 2011-08-02 | 2011-08-02 | Vacuum load isolation switch with fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172043U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590777A (en) * | 2016-02-17 | 2016-05-18 | 成都佳美嘉科技有限公司 | Outdoor load switch |
| CN108010785A (en) * | 2017-11-01 | 2018-05-08 | 王亚苹 | A kind of switchable electric wire connecting junction of power grid list rocking arm |
| CN106710945B (en) * | 2017-01-06 | 2018-12-14 | 安徽通球智能化科技有限公司 | A kind of high voltage load switch |
| CN109037005A (en) * | 2018-08-17 | 2018-12-18 | 石首市首岳电气科技有限公司 | A kind of combined electrical apparatus of two stations high-voltage isolation grounding switch and fuse |
-
2011
- 2011-08-02 CN CN2011202778673U patent/CN202172043U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590777A (en) * | 2016-02-17 | 2016-05-18 | 成都佳美嘉科技有限公司 | Outdoor load switch |
| CN106710945B (en) * | 2017-01-06 | 2018-12-14 | 安徽通球智能化科技有限公司 | A kind of high voltage load switch |
| CN108010785A (en) * | 2017-11-01 | 2018-05-08 | 王亚苹 | A kind of switchable electric wire connecting junction of power grid list rocking arm |
| CN109037005A (en) * | 2018-08-17 | 2018-12-18 | 石首市首岳电气科技有限公司 | A kind of combined electrical apparatus of two stations high-voltage isolation grounding switch and fuse |
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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: 20120321 Termination date: 20140802 |
|
| EXPY | Termination of patent right or utility model |