CN202712735U - Insulation-enclosed plug-pull switchgear - Google Patents
Insulation-enclosed plug-pull switchgear Download PDFInfo
- Publication number
- CN202712735U CN202712735U CN 201220333227 CN201220333227U CN202712735U CN 202712735 U CN202712735 U CN 202712735U CN 201220333227 CN201220333227 CN 201220333227 CN 201220333227 U CN201220333227 U CN 201220333227U CN 202712735 U CN202712735 U CN 202712735U
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- rotating shaft
- air chamber
- operating room
- circuit
- insulation plug
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Abstract
The utility model discloses an insulation-enclosed plug-pull switchgear light in weight, small in size, convenient in installation and use and capable of safely and reliably completing opening/closing operation. The insulation-enclosed plug-pull switchgear comprises a cabinet body, two columns of three-phase incoming and outgoing plugs, a switch body, an operation mechanism, a pressure loss locking indication device and a phase detector, wherein the cabinet body is partitioned to a gas chamber filled with sulfur hexafluoride and an operation chamber; the two columns of three-phase incoming and outgoing plugs are respectively interposed on two sidewalls of the gas chamber; the switch body is arranged in the gas chamber, and static contacts on the switch body are connected with the inner ends of the two columns of three-phase incoming and outgoing plugs; the operation mechanism is arranged in the operation chamber and is connected with moving contacts on the switch body through a gear assembly to make the moving contacts in contact with or separated from the static contacts; the pressure loss locking indication device is arranged in the operation chamber and is used for locking the operation mechanism and displaying pressure loss in the gas chamber when the gas chamber is in the pressure loss state; and the phase detector is arranged on the front surface of the cabinet body and is connected with the outer ends of the two columns of three-phase incoming and outgoing plugs through wires.
Description
Technical field
The utility model relates to a kind of electric switch for bypass operation, is specifically related to a kind of circuit all insulation plug-in switchgear.
Background technology
Circuit all insulation plug-in switchgear is mounted in and is used for disconnection, closed high circuit on the electric pole, as the usefulness of dividing, closing load current, overload current and short circuit current.Be mainly used in the interval segmentation switching of distribution line, control, protection, can cut-off, close and close short circuit current.Because informationalized high speed development, electric power system is proposed the unbroken requirement of electric energy, namely when electrical network breaks down or electrical network safeguarded, can not interrupt enterprises and institutions and civilian electric power.Yet existing electrical network mostly adopts when keeping in repair take power failure operation as main, and live line working is auxiliary, and this certainly will affect power supply reliability, so uninterrupted operation is imperative.And bypass operation is the important means of uninterrupted operation, it adopts temporary cable with the wire cross-over connection of operating area, and be transported to user in the operating area temporarily, then the wire of operating area is isolated, the operating area just can power failure operation, but the user does not have a power failure, thereby has guaranteed power supply reliability.Recovering former link tester electricity condition after operation is complete.Adopt this method that a kind of equipment that can be connected with temporary cable need to be arranged, this equipment must support equipment security of operation and operating personnel's personal safety.
Summary of the invention
The purpose of this utility model provides a kind of circuit all insulation plug-in switchgear, it is easy to operate, can finish safely and reliably breaking-closing operating, have lightweight, volume is little, be convenient to transport, characteristics easy to install, reusable and strong to environmental suitability.
The technical scheme that realizes above-mentioned purpose is: a kind of circuit all insulation plug-in switchgear comprises that casing, two row three-phases are into and out of line connection-peg, switch body, operating mechanism, no-voltage dead locking indicating device, phasing tester; Described casing is separated into air chamber and an operating room that is filled with sulfur hexafluoride gas; Described two row three-phases intert respectively on the two side of described air chamber into and out of the line connection-peg; Described switch body is located in the described air chamber, and the fixed contact on this switch body is connected with described two row three-phases the inner into and out of the line connection-peg; Described operating mechanism is located in the described operating room and is connected with moving contact on being located at described switch body by transmission component, described moving contact is contacted with fixed contact and separates; Described no-voltage dead locking indicating device is located in the described operating room, and when described air chamber decompression, described no-voltage dead locking indicating device is with described operating mechanism locking and show described air chamber decompression; Described phasing tester is located at the front surface of described casing and is connected with the outer end of described two row three-phases into and out of the line connection-peg by wire.
Above-mentioned circuit all insulation plug-in switchgear, it is characterized in that, described operating mechanism is spring operating mechanism and comprises operating grip, rotating shaft, rotating shaft connecting lever, energy storage seat, main torsion spring, two sincere sons, operation support and quadric chains, and described operating grip is located at the front surface of described operating room and is connected with described rotating shaft in being located at operating room by connector; Described rotating shaft connecting lever is installed in the described rotating shaft; Described energy storage seat is installed in the described rotating shaft, this energy storage seat is made of the front operation panel that is provided with locked groove, base plate and rear buckle and is concave structure, on described main torsion spring set colludes respectively base plate one side and described rotating shaft connecting lever at described energy storage seat in the front operation panel of described energy storage seat and the described rotating shaft between the rear buckle and two ends; Described two sincere sons are hinged on respectively the two ends of described rotating shaft connecting lever by bearing pin, arrange respectively one on these two sincere sons and pull pin, and two ends are housed on the described bearing pin collude respectively in described rotating shaft and the little torsion spring on pulling pin; Described operation support is fixed in the described operating room and is provided with and the roller that offsets of described sincere son and the bumping post spacing to described sincere son; One end of the input bar of described quadric chain is fixed in the described rotating shaft, and the take-off lever of this quadric chain connects described transmission component.
Above-mentioned circuit all insulation plug-in switchgear, wherein, described no-voltage dead locking indicating device comprises pressure sensor, blocking mechanism and indicating mechanism, and described pressure sensor is bellows-type pressure sensor or diaphragm type pressure sensor and is located in the described air chamber; Described blocking mechanism comprises latch plate, extension spring and guide rod, and it is interior and hinged with an end of a slide plate that the pivot of described latch plate is hinged on described operating room, and one of this latch plate arranges a lock pin; The two ends of described extension spring are connected on the sidewall of an end of described slide plate and described operating room; Described guide rod is connected on the described pressure sensor and with the action telescopic moving of pressure sensor and with described slide plate slides and contacts; Described indicating mechanism comprises two inner magnets, Global Indicator and two outer magnets, the polarity of described two inner magnets is opposite and be installed in the other end of described latch plate, described Global Indicator is provided with sign and is installed on the front surface of described operating room, and it is interior and corresponding with the polarity of two inner magnets that described two outer magnets are installed in described Global Indicator; When the air chamber decompression, described guide rod is by breaking away from described slide plate, described slide plate makes the lock pin on the described latch plate lock described operating mechanism because the effect of extension spring drives the latch plate swing, and makes the inner magnet on the latch plate by magnetic force described Global Indicator be rotated.
Above-mentioned circuit all insulation plug-in switchgear wherein, also is provided with buffer board and the limiting plate spacing to described operating grip on the front surface of described operating room.
Above-mentioned circuit all insulation plug-in switchgear wherein, is installed a counter that is connected with described quadric chain on the sidewall of described operating room.
Above-mentioned circuit all insulation plug-in switchgear, wherein, the top of described air chamber is provided with the pressure release cover plate and at this pressure release cover plate one self-styled charge valve is set.
Above-mentioned circuit all insulation plug-in switchgear wherein, is arranging safe explosion-proof device between the top of described pressure release cover plate and described air chamber.
Above-mentioned circuit all insulation plug-in switchgear, wherein, the sidewall of described casing is provided with an earth terminal.
Above-mentioned circuit all insulation plug-in switchgear, wherein, described two row three-phases are equipped with insulating sleeve and are set with induction coil at insulating sleeve into and out of the outside of line connection-peg, and described phasing tester is electrically connected with induction coil by wire.
The technical scheme of the circuit all insulation plug-in switchgear that the utility model provides adopts sulfur hexafluoride gas as arc-extinguishing medium and dielectric, makes that switch can reliably be finished minute, closing operation.The explosion-protection equipment that arranges can avoid occuring in the air chamber spreading of arcing fault.The no-voltage dead locking indicating device that arranges, can the pressure in the air chamber be detected in real time, when the air chamber air pressure inside was lower than the barometric minimum of permission, the no-voltage dead locking indicating device can lock operation mechanism, make that switch can not divide, closing operation, improved the security reliability of switch.Arrange into and out of the line connection-peg, cable can be fast be connected with fixed contact on the switch body, have easy for installationly, the life-span is long, is easy to reuse.The spring operating mechanism that adopts to minute, speed and the service speed of closing a floodgate be irrelevant, only relevant with the energy storage of torsion spring, makes the operator not operated with the affecting weapons of physical efficiency by skill light, guaranteed the stable of switch deciliter performance and reliably.
Description of drawings
Fig. 1 is the structural representation of circuit all insulation plug-in switchgear of the present utility model;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the cut-away view of circuit all insulation plug-in switchgear of the present utility model;
Fig. 4 is the perspective view of the operating mechanism of circuit all insulation plug-in switchgear of the present utility model;
Fig. 5 is the front view of the operating mechanism of circuit all insulation plug-in switchgear of the present utility model;
Fig. 6 is that B among Fig. 5 is to view;
Fig. 7 is the structural representation (when air chamber pressure is normal) of the no-voltage dead locking indicating device of circuit all insulation plug-in switchgear of the present utility model;
Fig. 8 is the structural representation (when air chamber pressure is lower than setting pressure) of the no-voltage dead locking indicating device of circuit all insulation plug-in switchgear of the present utility model;
Fig. 9 is that A-A among Fig. 3 is to view.
Embodiment
In order to make those skilled in the art can understand better the technical solution of the utility model, below in conjunction with accompanying drawing its embodiment is described in detail:
See also Fig. 1 and Fig. 2, a kind of circuit all insulation plug-in switchgear of the present utility model comprises casing 1, two row three-phases into and out of line connection-peg 2, switch body 3, operating mechanism 4, no-voltage dead locking indicating device, phasing tester 6 and safe explosion-proof device 7, wherein,
Two row three-phases intert respectively in the two side of air chamber 11 into and out of line connection-peg 2, and this two row three-phase is equipped with insulating sleeve and is set with induction coil 20 at insulating sleeve into and out of the outside of line connection-peg 2;
Switch body 3 is located at the central authorities of air chamber 11, and the fixed contact 31 on this switch body 3 is connected with two row three-phases the inner into and out of line connection-peg 2 by electric conductor 32;
See also Fig. 3 to Fig. 6, operating mechanism 4 is located in the operating room 12 and is connected with moving contact on being located at switch body 3 by transmission component 40, moving contact is contacted with fixed contact 31 and separates;
See also Fig. 3 and Fig. 7 to Fig. 9, the no-voltage dead locking indicating device is located in the operating room 12, and the no-voltage dead locking indicating device comprises pressure sensor 50, blocking mechanism and indicating mechanism,
Blocking mechanism comprises latch plate 51, extension spring 52 and guide rod 53, and it is interior and hinged with an end of a slide plate 54 that the pivot of latch plate 51 is hinged on operating room 12, and one of this latch plate 51 arranges a lock pin 55; The two ends of extension spring 52 are connected on the sidewall of an end of slide plate 54 and operating room 12; Guide rod 53 pass that dividing plate 10 is connected on the pressure sensor 50 and with the action telescopic moving of pressure sensor 50 and with slide plate 54 sliding contacts;
Indicating mechanism comprises two inner magnets 56, Global Indicator 57 and two outer magnets 58, the polarity of two inner magnets 56 is opposite and be installed in the other end of latch plate 51, Global Indicator 57 is provided with sign and is installed on the front surface of operating room 12, and two outer magnets 58 are installed in the Global Indicator 57 and are corresponding with the polarity of two inner magnets 56;
Safe explosion-proof device is located between the top and pressure release cover plate 13 of air chamber 11, can avoid spreading of air chamber 11 interior generation arcing faults;
Also be provided with buffer board 15 and the limiting plate 16 spacing to operating grip 41 on the front surface of operating room 12;
One counter 17 that is used for the display switch access times and is connected with quadric chain 49 is installed on one sidewall of operating room 12, can be observed intuitively the access times of switch.
When rotating counterclockwise operating grip 41, even rotating and drive main torsion spring 45, energy storage seat 44 rotates, be positioned at simultaneously sincere sub 461 of rotating shaft connecting lever 43 1 ends and make main torsion spring 45 storage power owing to roller 481 offsets.When the torsion of main torsion spring 45 reaches maximum, rear buckle 443 on the energy storage seat 44 promotes to pull pin 460 on sincere sub 46, make sincere sub 461 to break away from roller 481, main torsion spring 45 just can release energy, drive with sincere sub 461 rotating shafts that are connected 42 and rotate, make quadric chain 49 actions, quadric chain 49 contacts the moving contact 33 on the switch body 3 by transmission component 40 with fixed contact 31, finishes switch and closes a floodgate.When clockwise rotating operating grip 41, even rotating and drive main torsion spring 45, energy storage seat 44 rotates, be positioned at simultaneously sincere sub 462 of rotating shaft connecting lever 43 other ends and make main torsion spring 45 storage power owing to roller 482 offsets.When the torsion of main torsion spring 45 reaches maximum, rear buckle 443 on the energy storage seat 44 promotes to pull pin 460 on sincere sub 462, make sincere sub 462 to break away from roller 482, main torsion spring 45 just can release energy, drive with sincere sub 462 rotating shafts that are connected 42 and rotate, make quadric chain 49 actions, quadric chain 49 separates the moving contact 33 on the switch body 3 and fixed contact 31 by transmission component 40, finishes the switch separating brake.
Switch divides, closes a floodgate is main torsion spring 45 storage power that rely in the operating mechanism 4, have rational in infrastructure, compact, switch divide-shut brake having stable behavior, reliable characteristics.
When the gas pressure in the air chamber 11 is normal, guide rod 53 is connected to the distolateral of slide plate 54 by pressure sensor 50, when the Leakage Gas in the air chamber 11 when being lower than the minimal function pressure of setting, under pressure in air chamber 11 and the atmospheric differential pressure action, pressure sensor 50 shrinks in the air chamber and drives that guide rod 53 moves and break away from slide plate 54, slide plate 54 moves and drives latch plate 51 and rotate owing to the effect of extension spring 52, lock pin 55 on the latch plate 51 is snapped in the locked groove 440 on the energy storage seat 44, operating mechanism 4 is implemented locking, operating mechanism 4 can't be divided, feed motion; In latch plate 51 rotation processes, the effect owing to magnetic force between the outer magnet 58 in the inner magnet 56 on the latch plate 51 and the Global Indicator 57 makes Global Indicator 57 rotations show decompression;
The no-voltage dead locking indicating device can detect in real time to the pressure in the air chamber 11, when air chamber 11 air pressure inside are lower than the barometric minimum of permission, the no-voltage dead locking indicating device can lock operation mechanism 4, makes that switch can not divide, closing operation, has improved the security reliability of switch;
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the utility model, and be not to be used as restriction of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (9)
1. a circuit all insulation plug-in switchgear comprises that casing, two row three-phases into and out of line connection-peg, switch body, operating mechanism, no-voltage dead locking indicating device, phasing tester, is characterized in that,
Described casing is separated into air chamber and an operating room that is filled with sulfur hexafluoride gas;
Described two row three-phases intert respectively on the two side of described air chamber into and out of the line connection-peg;
Described switch body is located in the described air chamber, and the fixed contact on this switch body is connected with described two row three-phases the inner into and out of the line connection-peg;
Described operating mechanism is located in the described operating room and is connected with moving contact on being located at described switch body by transmission component, described moving contact is contacted with fixed contact and separates;
Described no-voltage dead locking indicating device is located in the described operating room, and when described air chamber decompression, described no-voltage dead locking indicating device is with described operating mechanism locking and show described air chamber decompression;
Described phasing tester is located at the front surface of described casing and is connected with the outer end of described two row three-phases into and out of the line connection-peg by wire.
2. circuit all insulation plug-in switchgear according to claim 1, it is characterized in that, described operating mechanism is spring operating mechanism and comprises operating grip, rotating shaft, rotating shaft connecting lever, energy storage seat, main torsion spring, two sincere sons, operation support and quadric chains, and described operating grip is located at the front surface of described operating room and is connected with described rotating shaft in being located at operating room by connector; Described rotating shaft connecting lever is installed in the described rotating shaft; Described energy storage seat is installed in the described rotating shaft, this energy storage seat is made of the front operation panel that is provided with locked groove, base plate and rear buckle and is concave structure, on described main torsion spring set colludes respectively base plate one side and described rotating shaft connecting lever at described energy storage seat in the front operation panel of described energy storage seat and the described rotating shaft between the rear buckle and two ends; Described two sincere sons are hinged on respectively the two ends of described rotating shaft connecting lever by bearing pin, arrange respectively one on these two sincere sons and pull pin, and two ends are housed on the described bearing pin collude respectively in described rotating shaft and the little torsion spring on pulling pin; Described operation support is fixed in the described operating room and is provided with and the roller that offsets of described sincere son and the bumping post spacing to described sincere son; One end of the input bar of described quadric chain is fixed in the described rotating shaft, and the take-off lever of this quadric chain connects described transmission component.
3. circuit all insulation plug-in switchgear according to claim 1 is characterized in that, described no-voltage dead locking indicating device comprises pressure sensor, blocking mechanism and indicating mechanism,
Described pressure sensor is bellows-type pressure sensor or diaphragm type pressure sensor and is located in the described air chamber;
Described blocking mechanism comprises latch plate, extension spring and guide rod, and it is interior and hinged with an end of a slide plate that the pivot of described latch plate is hinged on described operating room, and one of this latch plate arranges a lock pin; The two ends of described extension spring are connected on the sidewall of an end of described slide plate and described operating room; Described guide rod is connected on the described pressure sensor and with the action telescopic moving of pressure sensor and with described slide plate slides and contacts;
Described indicating mechanism comprises two inner magnets, Global Indicator and two outer magnets, the polarity of described two inner magnets is opposite and be installed in the other end of described latch plate, described Global Indicator is provided with sign and is installed on the front surface of described operating room, and it is interior and corresponding with the polarity of two inner magnets that described two outer magnets are installed in described Global Indicator;
When the air chamber decompression, described guide rod is by breaking away from described slide plate, described slide plate makes the lock pin on the described latch plate lock described operating mechanism because the effect of extension spring drives the latch plate swing, and makes the inner magnet on the latch plate by magnetic force described Global Indicator be rotated.
4. circuit all insulation plug-in switchgear according to claim 2 is characterized in that, also is provided with buffer board and the limiting plate spacing to described operating grip on the front surface of described operating room.
5. circuit all insulation plug-in switchgear according to claim 2 is characterized in that, a counter that is connected with described quadric chain is installed on the sidewall of described operating room.
6. circuit all insulation plug-in switchgear according to claim 1 is characterized in that, the top of described air chamber is provided with the pressure release cover plate and at this pressure release cover plate one self-styled charge valve is set.
7. circuit all insulation plug-in switchgear according to claim 1 is characterized in that, between the top of described pressure release cover plate and described air chamber safe explosion-proof device is being set.
8. circuit all insulation plug-in switchgear according to claim 1 is characterized in that, the sidewall of described casing is provided with an earth terminal.
9. circuit all insulation plug-in switchgear according to claim 1, it is characterized in that, described two row three-phases are equipped with insulating sleeve and are set with induction coil at insulating sleeve into and out of the outside of line connection-peg, and described phasing tester is electrically connected with induction coil by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333227 CN202712735U (en) | 2012-07-10 | 2012-07-10 | Insulation-enclosed plug-pull switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333227 CN202712735U (en) | 2012-07-10 | 2012-07-10 | Insulation-enclosed plug-pull switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712735U true CN202712735U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220333227 Expired - Lifetime CN202712735U (en) | 2012-07-10 | 2012-07-10 | Insulation-enclosed plug-pull switchgear |
Country Status (1)
| Country | Link |
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| CN (1) | CN202712735U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738728A (en) * | 2012-07-10 | 2012-10-17 | 上海市电力公司 | Insulation-enclosed plug-pull switchgear |
| CN111696799A (en) * | 2020-06-09 | 2020-09-22 | 合隆防爆电气有限公司 | Explosion-proof plug device with function of preventing illegal operation |
| CN111864559A (en) * | 2020-06-30 | 2020-10-30 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch, nuclear phase current and voltage monitoring device and using method |
-
2012
- 2012-07-10 CN CN 201220333227 patent/CN202712735U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738728A (en) * | 2012-07-10 | 2012-10-17 | 上海市电力公司 | Insulation-enclosed plug-pull switchgear |
| CN111696799A (en) * | 2020-06-09 | 2020-09-22 | 合隆防爆电气有限公司 | Explosion-proof plug device with function of preventing illegal operation |
| CN111696799B (en) * | 2020-06-09 | 2021-03-30 | 合隆防爆电气有限公司 | Explosion-proof plug device with function of preventing illegal operation |
| CN111864559A (en) * | 2020-06-30 | 2020-10-30 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch, nuclear phase current and voltage monitoring device and using method |
| CN111864559B (en) * | 2020-06-30 | 2023-11-07 | 国网辽宁省电力有限公司营口供电公司 | 400-volt bypass switch and nuclear phase current and voltage monitoring device and application method |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |