CN201112231Y - Three-station isolation ground switch - Google Patents
Three-station isolation ground switch Download PDFInfo
- Publication number
- CN201112231Y CN201112231Y CNU2007200085522U CN200720008552U CN201112231Y CN 201112231 Y CN201112231 Y CN 201112231Y CN U2007200085522 U CNU2007200085522 U CN U2007200085522U CN 200720008552 U CN200720008552 U CN 200720008552U CN 201112231 Y CN201112231 Y CN 201112231Y
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- switch
- main shaft
- spring
- phase
- disconnecting link
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Abstract
The utility model discloses an indoor high voltage three-station earthing isolator which essentially consists of a spring operation mechanism, an upper static contact base, a movable contact insulative base assembled with three-phase and an insulative main shaft of three-phase assembled body assembled with three-phase. The operational mechanism of the utility model designs a special three-position spring operation mechanism, in which the operations of switching on, switching off and earthing in three positions are realized by the spring mechanism; the upper static contact base adopts a transparent insulative material which ensures a clear glance of the operation positions of the switch; the movable contact base is provided with the three phases and skillfully divides a busbar chamber and a switch house of a switch cabinet; a knife-blade rotational terminal of the switch is installed on a crank arm of the insulative main shaft which wraps the knife-blade for a length that is two thirds of the length of the knife-blade; the isolation switch can realize the functions of switching on, switching off and earthing at the same time; the tracks of the three positions are all wrapped in an insulative body, thus ensuring simple and compact structure, small shape, strong ability to against the influence of the environment and easy and reliable operation.
Description
Technical field
The utility model relates to a kind of isolated switchgear of electric power system, is meant a kind of three station isolation earthing switch especially.
Background technology
Indoor high-voltage isolating switch is a kind of High-Voltage Electrical Appliances that supply line is switched and electric equipment such as the high voltage bus that overhauled, circuit breaker and high voltage supply circuit are isolated commonly used in the electric power system.At present, in the 12kV distribution system, known indoor high-voltage is isolated and how earthed switch only is provided with two stations, promptly close a floodgate, two positions of separating brake, and isolating switch and earthed switch are installed separately, also need to be provided with complicated mechanical interlocking device between the two, make that like this volume of switch cubicle is big, complex structure.Along with the upgrading of switchgear, miniaturization becomes the development trend of switchgear, and the particularly appearance of small stationary cabinet needs supporting electric equipment structure compactness, miniaturization more more.
The utility model content
The purpose of this utility model is the development that be to adapt to miniaturization compact stationary cabinet, provides a kind of compact conformation, volume is little, operation is reliable, can realize closing close, three station isolation earthing switch of isolation, three kinds of functions of ground connection.
For reaching above-mentioned purpose, solution of the present utility model is:
The utility model is a kind of tri-station isolating switch, and it mainly is made up of the moving contact insulator foot of spring deciliter operating mechanism, upper static contact seat, three-phase coenosarc, the insulation main shaft of three-phase coenosarc; Combined floodgate and earthing position fixed contact are cast in the upper static contact seat, insulation main shaft and moving contact base are three-phase coenosarc and flexibly connect, the disconnecting link of switch is installed in the three-phase connecting lever of insulation main shaft, the disconnecting link exposed parts is equipped with the spring bumper cover of uniform voltage function, spring deciliter operating mechanism is realized combined floodgate, separating brake and the grounding function of switch by direct rotating spindle.
Described spring deciliter operating mechanism is to adopt special-purpose torque spring, and with spring energy-storage, immediate release can be realized quick divide-shut brake then during operation, and switch is when settling position, and torsion spring is in no energy storage state.
Described upper static contact seat is to adopt transparent insulating material, the fixed contact of combined floodgate and earthing position is cast in wherein, the insulation tank of one arc is arranged between combined floodgate and the ground connection fixed contact, and the movement locus of fixed contact and three position disconnecting link end faces all is encapsulated in the insulation tank.
Described insulation main shaft band three-phase connecting lever, the disconnecting link of switch is installed in the connecting lever, and connecting lever has coated 2/3 of disconnecting link length.
Described moving contact insulator foot is a three-phase coenosarc, and the insulator foot upper end is the moving contact that is connected with main shaft, and the lower end is the outlet link of switch.
The disconnecting link of described insulation main shaft is movably articulated in the shaft hole of insulator foot upper end moving contact, and the direct rotating spindle of operating mechanism is realized the combined floodgate-separating brake-grounding function of switch, and the rotational angle of each position of main shaft is 55 °.
Upper static contact seat of the present utility model changes the mode that traditional contact base supports with insulator, to close a floodgate and two fixed contacts of ground connection are cast in the insulating part, contact base is the arcuate structure of a fluting, disconnecting link all is coated in the insulation tank at the movement locus of combined floodgate-separating brake-three positions of ground connection, has improved whole switch resistance against environmental influences; The stationary contact headstock adopts transparent plastic material, makes the location status of switch to come into plain view; The upper end of stationary contact headstock directly overlaps horizontal busbar, when the isolated location, enough dielectric strengths is arranged between horizontal busbar and the disconnecting link; Adopt this structure of partly sealing simultaneously, make the width dimensions of whole isolated switch dwindle greatly, have only 400mm wide, be fit to very much be installed in the various small stationary cabinets.
Main shaft of the present utility model adopts the plastic insulation main shaft of band connecting lever, disconnecting link is directly installed in the connecting lever, the direct rotating spindle of operating mechanism is realized the combined floodgate-separating brake-grounding function of switch, this structure has been save parts such as traditional disconnecting link connecting lever, connecting lever pull bar, effectively reduce the amount of parts of isolating switch, reduced the source of trouble.
Below in conjunction with accompanying drawing the utility model is further described
Description of drawings
Fig. 1 is the utility model normal axomometric drawing;
Fig. 2 is the utility model operating mechanism normal axomometric drawing;
Fig. 3 is the utility model upper static contact seat normal axomometric drawing;
Fig. 4 is the utility model main shaft normal axomometric drawing;
Fig. 5 is the utility model moving contact base normal axomometric drawing.
Embodiment
As shown in Figure 1, the utility model three station isolation earthing switch mainly are made up of spring deciliter operating mechanism 1, upper static contact seat 2, insulation main shaft 3, disconnecting link 4, moving contact base 5, installation frame 6.
As shown in Figure 2, spring deciliter operating mechanism 1 is to adopt special-purpose torque spring, and with spring energy-storage, immediate release can be realized quick divide-shut brake then during operation, and switch is when settling position, and torsion spring is in no energy storage state.
As shown in Figure 3, described upper static contact seat 2 mainly is made up of closing position fixed contact 21 and ground connection fixed contact 22, this upper static contact seat is to be formed by transparent insulation PC material pressure injection, the lower end is fixed on above the frame 6, between combined floodgate fixed contact 21 and ground connection fixed contact 22, have a deep-slotted chip breaker, rotate within it for disconnecting link 4.Closing position fixed contact 21 upper ends are connected with the switch cubicle horizontal bus, and the direct short circuit of end face of three-phase ground connection fixed contact 22 is connected with frame.
As shown in Figure 4, described insulation main shaft 3 mainly is made up of plastics main shaft 31 and isolation switch 4, insulation main shaft 3 is three-phase integrated, two ends are installed in the shaft hole of frame 6 front and back, isolation switch 4 is installed in the connecting lever 32 of insulation main shaft 3, the rotation end 41 of isolation switch 4 is movably articulated in the moving contact shaft hole 51 of moving contact base 5, and isolation switch 4 exposed junctions are equipped with the spring bumper cover 42 of uniform voltage function.The rotational angle of plastics main shaft 31 each position is 55 °.Spring deciliter operating mechanism 1 is by rotating insulation main shaft 3, making isolation switch 4 rotate about it end 41 rotates, thereby be implemented in the combined floodgate fixed contact 21 of different angles and isolating switch or ground connection fixed contact 22 in conjunction with separate, or make isolation switch 4 isolation that mediates, realize that the pass of switch is closed, isolation and grounding function.
As shown in Figure 5, described moving contact base 5 is a three-phase coenosarc, poured with epoxy resin by insulation forms, the outstanding insulator 51 that forms a band full skirt in its top, insulator 51 its portions of extending upward form a shaft hole 52 that is connected with the rotation end of isolation switch 4, the outstanding downwards insulator 53 that forms of moving contact base 5, the end face of insulator 53 is the leading-out terminal of switch, with the main switch overlap joint in the switch cubicle.
Upper static contact seat 2 of the present utility model changes the mode that traditional contact base supports with insulator, to close a floodgate and two fixed contacts of ground connection are cast in the insulating part, contact base 2 is the arcuate structure of a fluting, disconnecting link 4 all is coated in the insulation tank at the movement locus of combined floodgate-separating brake-three positions of ground connection, has improved whole switch resistance against environmental influences; Stationary contact headstock 2 adopts transparent plastic material, makes the location status of switch to come into plain view; The upper end of stationary contact headstock 2 directly overlaps horizontal busbar, when the isolated location, between horizontal busbar and the disconnecting link 4 enough dielectric strengths is arranged; Adopt this structure of partly sealing simultaneously, make the width dimensions of whole isolated switch dwindle greatly, have only 400mm wide, be fit to very much be installed in the various small stationary cabinets.
Main shaft adopts the plastic insulation main shaft 3 of band connecting lever 32 in addition, disconnecting link 4 is directly installed in the connecting lever 32, spring deciliter operating mechanism 1 direct rotating spindle 3 is realized the combined floodgate-separating brake-grounding function of switch, this structure has been save parts such as traditional disconnecting link connecting lever, connecting lever pull bar, effectively reduce the amount of parts of isolating switch, reduced the source of trouble.
Claims (6)
1, a kind of three station isolation earthing switch is characterized in that: it mainly is made up of the moving contact insulator foot of spring deciliter operating mechanism, upper static contact seat, three-phase coenosarc, the insulation main shaft of three-phase coenosarc; Combined floodgate and earthing position fixed contact are cast in the transparent upper static contact seat, insulation main shaft and moving contact base are three-phase coenosarc and flexibly connect, the disconnecting link of switch is installed in the three-phase connecting lever of insulation main shaft, the disconnecting link exposed parts is equipped with the spring bumper cover of uniform voltage function, spring deciliter operating mechanism is realized combined floodgate, separating brake and the grounding function of switch by direct rotating spindle.
2, three station isolation earthing switch as claimed in claim 1, it is characterized in that: described spring deciliter operating mechanism is to adopt special-purpose torque spring, and with spring energy-storage, immediate release can be realized quick divide-shut brake then during operation, switch is when settling position, and torsion spring is in no energy storage state.
3, three station isolation earthing switch as claimed in claim 1, it is characterized in that: the upper static contact seat is to adopt transparent insulating material, the fixed contact of combined floodgate and earthing position is cast in wherein, the insulation tank of one arc is arranged between combined floodgate and the ground connection fixed contact, and the movement locus of fixed contact and three position disconnecting link end faces all is encapsulated in the insulation tank.
4, three station isolation earthing switch as claimed in claim 1 is characterized in that: insulation main shaft band three-phase connecting lever, and the disconnecting link of switch is installed in the connecting lever, and connecting lever has coated 2/3 of disconnecting link length.
5, three station isolation earthing switch as claimed in claim 1, it is characterized in that: the moving contact insulator foot is a three-phase coenosarc, and the insulator foot upper end is the moving contact that is connected with main shaft, and the lower end is the outlet link of switch.
6, three station isolation earthing switch as claimed in claim 1, it is characterized in that: the disconnecting link of insulation main shaft is movably articulated in the shaft hole of insulator foot upper end moving contact, the direct rotating spindle of operating mechanism is realized the combined floodgate-separating brake-grounding function of switch, and the rotational angle of each position of main shaft is 55 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200085522U CN201112231Y (en) | 2007-10-22 | 2007-10-22 | Three-station isolation ground switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200085522U CN201112231Y (en) | 2007-10-22 | 2007-10-22 | Three-station isolation ground switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112231Y true CN201112231Y (en) | 2008-09-10 |
Family
ID=39963976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200085522U Expired - Lifetime CN201112231Y (en) | 2007-10-22 | 2007-10-22 | Three-station isolation ground switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112231Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347163A (en) * | 2010-07-30 | 2012-02-08 | 青岛特锐德电气股份有限公司 | Isolating switch |
| CN103198968A (en) * | 2013-02-27 | 2013-07-10 | 上海正昊电力科技有限公司 | High-voltage switch and switch cabinet comprising same |
| CN105529646A (en) * | 2016-02-06 | 2016-04-27 | 北京清畅电力技术股份有限公司 | Environment-friendly gas switch cabinet |
| CN106611937A (en) * | 2015-10-27 | 2017-05-03 | 上海思源高压开关有限公司 | Insulation device for grounding leading-out of three-position isolation grounding switch |
| CN106898521A (en) * | 2015-12-17 | 2017-06-27 | Abb技术有限公司 | Three-station and high-tension switch gear |
| CN108172445A (en) * | 2017-12-28 | 2018-06-15 | 北京双杰电气股份有限公司 | A kind of isolation earthing or grounding means |
| CN108538674A (en) * | 2018-06-19 | 2018-09-14 | 青岛特锐德电气股份有限公司 | A kind of tri-station isolating switch |
| CN108807063A (en) * | 2018-06-01 | 2018-11-13 | 河南华盛隆源电气有限公司 | A kind of switchgear and its three-phase ground switch |
| CN115020146A (en) * | 2022-08-02 | 2022-09-06 | 徐州索纳特科技有限公司 | Isolating switch |
-
2007
- 2007-10-22 CN CNU2007200085522U patent/CN201112231Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347163A (en) * | 2010-07-30 | 2012-02-08 | 青岛特锐德电气股份有限公司 | Isolating switch |
| CN103198968A (en) * | 2013-02-27 | 2013-07-10 | 上海正昊电力科技有限公司 | High-voltage switch and switch cabinet comprising same |
| CN106611937A (en) * | 2015-10-27 | 2017-05-03 | 上海思源高压开关有限公司 | Insulation device for grounding leading-out of three-position isolation grounding switch |
| CN106611937B (en) * | 2015-10-27 | 2018-10-12 | 上海思源高压开关有限公司 | A kind of seal drawn for three-station isolating grounding switch ground connection |
| CN106898521A (en) * | 2015-12-17 | 2017-06-27 | Abb技术有限公司 | Three-station and high-tension switch gear |
| CN106898521B (en) * | 2015-12-17 | 2020-01-14 | Abb瑞士股份有限公司 | Three-position switch and high-voltage switch equipment |
| CN105529646A (en) * | 2016-02-06 | 2016-04-27 | 北京清畅电力技术股份有限公司 | Environment-friendly gas switch cabinet |
| CN108172445A (en) * | 2017-12-28 | 2018-06-15 | 北京双杰电气股份有限公司 | A kind of isolation earthing or grounding means |
| CN108807063A (en) * | 2018-06-01 | 2018-11-13 | 河南华盛隆源电气有限公司 | A kind of switchgear and its three-phase ground switch |
| CN108807063B (en) * | 2018-06-01 | 2023-11-28 | 河南华盛隆源电气有限公司 | Switch cabinet and three-phase grounding switch thereof |
| CN108538674A (en) * | 2018-06-19 | 2018-09-14 | 青岛特锐德电气股份有限公司 | A kind of tri-station isolating switch |
| CN115020146A (en) * | 2022-08-02 | 2022-09-06 | 徐州索纳特科技有限公司 | Isolating switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361009 Cai Tong Industrial Development Zone, Fujian, Xiamen Patentee after: SUCTRN TECHNOLOGY CO., LTD. Address before: 361009 Cai Tong Industrial Development Zone, Fujian, Xiamen Patentee before: Xiamen Xiecheng Industrial Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |
|
| CX01 | Expiry of patent term |