CN203377529U - A three-position solid insulated switch device - Google Patents
A three-position solid insulated switch device Download PDFInfo
- Publication number
- CN203377529U CN203377529U CN201320427546.6U CN201320427546U CN203377529U CN 203377529 U CN203377529 U CN 203377529U CN 201320427546 U CN201320427546 U CN 201320427546U CN 203377529 U CN203377529 U CN 203377529U
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- Prior art keywords
- major loop
- main shaft
- phase
- insulation shell
- phase major
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Abstract
The utility model discloses a three-position solid insulated switch device comprising a phase-A main loop case body, a phase-B main loop case body, and a phase-C main loop case body which are assembled together in parallel. The phase-A main loop case body, the phase-B main loop case body, and the phase-C main loop case body share one main shaft. The main shaft is rotated in order that an isolating knife is driven by the main shaft through a crank and an isolating knife insulating pull bar to swing around a static contact seat. Therefore, the isolating knife is switched between an input end and a grounding static contact or stays between the input end and the grounding static contact to form an isolating position. The three-position solid insulated switch device effectively achieves a three-position switching function with the isolating knife and is rotated in multiple insulating members by using one main shaft. The three-position solid insulated switch device has simple structure and easy manipulation. Three operative positions can be observed via an observation window. A moisture-proof device is disposed in an insulating housing. A moisture-proof case can be replaced if desiccant in the moisture-proof case is affected by moisture and generates color change.
Description
Technical field
The utility model relates to the high-tension distribution equipment technical field, especially a kind of three station solid insulated switchgears.
Background technology
SF
6gas-filling cabinet is very extensive in the application of middle pressure field, but uses in a large number SF
6gas can bring and pollutes and destroy environment, therefore from environmental angle, few with and without SF
6the electric equipment of gas should be the developing direction of High-Voltage Electrical Appliances manufacturing.Solid insulation ring main unit is considered to a kind of environmentally friendly switch cubicle, and it is poured into a mould array switch and the whole APG of employing of relevant live part epoxy resin, has manufactured the solid insulation power supply unit by the automatic pressure gel art designs, without SF
6gas harmful gas, therefore solid insulation ring main unit has obtained developing rapidly in recent years.Many producers have released solid-state insulated switchgear in the market, in solid-state insulated switchgear, many products possess the three-station function, be there is conduction position, three kinds of service positions of isolated location and earthing position, but also there have been many deficiencies in this class solid insulation equipment in the market.
The patent No. is 201110449245.9, the utility model name is called a kind of three station solid insulating full-closeds, its feature is that its conducting and isolated location realize by isolation knife, yet its grounding function is to realize the conversion of three kinds of service positions by grounding pole device.
The patent No. is 201010205862.X, and the utility model name is called the 24kV solid insulated fully-closed switch equipment, and characteristics are to realize the conversion of three service positions by the isolation knife of two diverse locations.
The patent No. is 20101020587798.6, and the utility model name is called Novel solid-insulated switchgear, and characteristics are conversions of three kinds of service positions of realizing by conductive moving contact and earthy vacuum tube.
Although above-mentioned technology is also established observation window, can only see and one of them or two service positions can not see three service positions in switch cubicle.Although adopted in addition fully closed structure to be used for being hedged off from the outer world in switchgear, can not guarantee none leak source fully, just in case there is steam to enter, the condensation phenomenon appears, insulation property will be received and destroy and cause the generation of dielectric breakdown accident.
The utility model content
The purpose of this utility model is to provide a kind of three station solid insulated switchgears, utilize an isolation knife to complete the conversion of three service positions on the one hand, and three service positions are visual, on the other hand, are provided with damp-proof device and improve insulating reliability in switchgear.
The utility model solves the technical scheme that its technical problem adopts:
A kind of three station solid insulated switchgears wherein, comprise the A phase major loop casing, B phase major loop casing and the C phase major loop casing that are assembled together side by side:
Described A phase major loop casing, described B phase major loop casing, described C phase major loop casing comprise respectively:
One insulation shell, be sealed with a vacuum interrupter and a fixed contact in described insulation shell, the moved end of described vacuum interrupter connects one first insulated tension pole, described insulation shell one side opening, and realize encapsulation by an encapsulation cover plate;
One touch base, described touch base is fixedly installed on described insulation shell inside, and is flexible coupling and is connected with described movable end of vacuum arc extinguishing chamber by one, an end of the described touch base isolation knife that is rotatably connected, described isolation knife realizes change in location by a driving-chain;
One grounding static contact, described grounding static contact is fixed on the inboard of described encapsulation cover plate; Input and output, connect respectively plug-in type bus and user side.
Above-mentioned three station solid insulated switchgears, wherein, described driving-chain comprises the second insulated tension pole, connecting lever, main shaft and driving connecting lever, described main shaft runs through is located at described insulation shell inside, and forms rotary seal by lip-type packing and insulation shell, described driving connecting lever is fixed on described main shaft, and described main shaft is connected with described isolation knife by described connecting lever and described the second insulated tension pole.
Above-mentioned three station solid insulated switchgears, wherein, described A phase major loop casing, described B phase major loop casing, described C phase major loop casing share same main shaft.
Above-mentioned three station solid insulated switchgears, wherein, described output connects output cable by a cable adapter.
Above-mentioned three station solid insulated switchgears, wherein, described encapsulation cover plate is provided with an observation window, is positioned at the upside on described encapsulation cover plate plate face, is positioned at the position of described insulation shell isolation knife for observation.
Above-mentioned three station solid insulated switchgears, wherein, the top of described insulation shell is provided with a boss, and the transparent desiccant box of drier self-indicating is housed on described boss, and described boss and described desiccant box junction are provided with sealing ring.
Prior art is compared, and advantage applies of the present utility model exists:
(1) in each major loop casing, adopt an isolation knife to realize the three-station function, and, by the rotation of the isolation knife in a main shaft drives three-phase major loop casing, it is simple in structure;
(2) can see three service positions by observation window: conduction position, isolated location, earthing position;
(3) be provided with moisture preventive measure in insulation shell, and change desiccant box by transparent desiccant box Real Time Observation to the make moist situation of variable color of box internal desiccant.
The accompanying drawing explanation
Fig. 1 is the cutaway view of the utility model three station solid insulated switchgears, is further that isolation knife is in conduction position;
Fig. 2 is the cutaway view of the utility model three station solid insulated switchgears, is further that isolation knife is in isolated location;
Fig. 3 is the cutaway view of the utility model three station solid insulated switchgears, is further that isolation knife is in earthing position;
Fig. 4 is that figure is cutd open in the part signal of the front view of the utility model three station solid insulated switchgears.
Description of reference numerals:
Insulation shell 1, vacuum interrupter 2, the first insulated tension pole 3, encapsulation cover plate 4, touch base 5, fixed contact 6, grounding static contact 7, isolation knife 8, main shaft 9, drive connecting lever 10, connecting lever 11, the second insulated tension pole 12, input 14, boss 15, transparent desiccant box 16, observation window 17, sealing ring 18, be flexible coupling 19, seal receptacle 20, support box 21, cable adapter 22, output 23, lip-type packing 24
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as restriction of the present utility model.
Please refer to shown in Fig. 1, Fig. 2 and Fig. 3, the utility model three station solid insulated switchgears comprise A phase major loop casing, B phase major loop casing and the C phase major loop casing be assembled together side by side, A phase major loop casing, B phase major loop casing, C phase major loop casing comprise respectively insulation shell 1, isolation knife 8, touch base 5, grounding static contact 7 and encapsulation cover plate 4, and input 14 and output 23.
Be sealed with vacuum interrupter 2, fixed contact 6 in insulation shell 1, the moved end of vacuum interrupter 2 connects the first insulated tension pole 3, insulation shell 1 one side openings, and realize encapsulation by encapsulation cover plate 4, be provided with O-ring seals between the opening part of insulation shell 1 one sides and encapsulation cover plate 4, between the first insulated tension pole 3 and encapsulation cover plate 4, be provided with seal receptacle 20.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, in preferred embodiment of the present utility model, driving-chain comprises the second insulated tension pole 12, connecting lever 11, main shaft 9 and driving connecting lever 10, main shaft 9 runs through is located at insulation shell 1 inside, and forms rotary seal by lip-type packing 24 and insulation shell 1.Drive connecting lever 10 to be fixed on main shaft 9, main shaft 9 is connected with isolation knife 8 by connecting lever 11 and the second insulated tension pole 12.
Preferably, A phase major loop casing, B phase major loop casing, C phase major loop casing share same main shaft 9, and main shaft 9, in rotary course, drives three isolation knife 8 and motions of other associated components in casing simultaneously.
Grounding static contact 7 is fixed on the inboard of encapsulation cover plate 4.Encapsulation cover plate 4 is provided with an observation window 17, is positioned at the upside on encapsulation cover plate 4 plate faces, is positioned at the position of insulation shell 1 isolation knife 8 for observation.Be provided with O-ring seals between observation window 17 and encapsulation cover plate 4.
In addition, the top of insulation shell 1 is provided with boss 15, and a transparent desiccant box 16 that the silica gel drier self-indicating is housed is housed on boss 15, and boss 15 also is provided with O-ring seals 18 with transparent desiccant box 16 junctions.Because desiccant box is transparent design, therefore can see the variable color situation of internal desiccant judges whether inside has moisture by translucent cover, when finding that drier has metachromatism, replaceable desiccant box.In general, if seal approach is proper, steam is difficult to enter in insulation shell 1, and adds the design of transparent desiccant box 16 can further strengthen moisture effect.
In concrete preferred embodiment of the present utility model, insulation shell 1 pours into an integrated entity by epoxide resin material with vacuum interrupter 2, fixed contact 6.
In preferred implementation, whole equipment can be placed on a support box 21, and 22 of cable adapters are positioned at support box 21.
With reference to Fig. 1, when isolation knife 8, during in conduction position, electric current enters from input 14, through fixed contact 6, isolation knife 8, touch base 5, be flexible coupling 19, vacuum interrupter 2, finally by cable adapter 22, export output cable to.
With reference to Fig. 2, when isolation knife 8, during in isolated location, complete equipment can be regarded as in stand-by state.
With reference to Fig. 3, when isolation knife 8, during in earthing position, isolation knife 8 is connected with grounding static contact 7, now by isolation knife 8, touch base 5, be flexible coupling 19 and the rapid closing of vacuum interrupter 2 moved ends, realize that the output cable ground connection that cable adapter 22 is connected closes.
A kind of three station solid insulated switchgears of the utility model adopt an isolation knife to realize the three-station function, and by the rotation of the isolation knife in a main shaft drives three-phase major loop casing,, it is simple in structure, easy to operate; Can see three service positions by observation window: the conduction position of isolation knife, isolated location, earthing position.Be provided with moisture preventive measure in insulation shell, and change desiccant box by transparent desiccant box Real Time Observation to the make moist situation of variable color of box internal desiccant.The foregoing is only the utility model preferred embodiment; not thereby limit claim of the present utility model; so the equivalent structure that all utilization the utility model specifications and diagramatic content have been done changes, and all is included in protection range of the present utility model.
Claims (6)
1. a station solid insulated switchgear, is characterized in that, comprises the A phase major loop casing, B phase major loop casing and the C phase major loop casing that are assembled together side by side:
Described A phase major loop casing, described B phase major loop casing, described C phase major loop casing comprise respectively:
One insulation shell, be sealed with a vacuum interrupter and a fixed contact in described insulation shell, the moved end of described vacuum interrupter connects one first insulated tension pole, described insulation shell one side opening, and realize encapsulation by an encapsulation cover plate;
One touch base, described touch base is fixedly installed on described insulation shell inside, and is flexible coupling and is connected with described movable end of vacuum arc extinguishing chamber by one, an end of the described touch base isolation knife that is rotatably connected, described isolation knife realizes change in location by a driving-chain;
One grounding static contact, described grounding static contact is fixed on the inboard of described encapsulation cover plate;
Input and output, connect respectively plug-in type bus and user side.
2. three station solid insulated switchgears according to claim 1, it is characterized in that, described driving-chain comprises the second insulated tension pole, connecting lever, main shaft and driving connecting lever, described main shaft runs through is located at described insulation shell inside, and forms rotary seal by lip-type packing and insulation shell, described driving connecting lever is fixed on described main shaft, and described main shaft is connected with described isolation knife by described connecting lever and described the second insulated tension pole.
3. three station fixed insulation switchgears according to claim 2, is characterized in that, described A phase major loop casing, described B phase major loop casing, described C phase major loop casing share same main shaft.
4. three station solid insulated switchgears according to claim 1, is characterized in that, described output connects output cable by a cable adapter.
5. three station solid insulated switchgears according to claim 1, is characterized in that, described encapsulation cover plate is provided with an observation window, is positioned at the upside on described encapsulation cover plate plate face, is positioned at the position of described insulation shell isolation knife for observation.
6. three station solid insulated switchgears according to claim 1, it is characterized in that, the top of described insulation shell is provided with a boss, and the transparent desiccant box of drier self-indicating is housed on described boss, and described boss and described desiccant box junction are provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320427546.6U CN203377529U (en) | 2013-07-17 | 2013-07-17 | A three-position solid insulated switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320427546.6U CN203377529U (en) | 2013-07-17 | 2013-07-17 | A three-position solid insulated switch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203377529U true CN203377529U (en) | 2014-01-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320427546.6U Expired - Lifetime CN203377529U (en) | 2013-07-17 | 2013-07-17 | A three-position solid insulated switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203377529U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346504A (en) * | 2013-07-17 | 2013-10-09 | 宁波天安（集团）股份有限公司 | Three-position solid insulation switchgear |
| CN105006767A (en) * | 2015-06-12 | 2015-10-28 | 杭州曙光电器有限公司 | Top-bottom isolation interchanged solid isolating switch structure |
| RU2642838C2 (en) * | 2016-04-25 | 2018-01-29 | Валерий Иванович Сафонов | High-voltage contact unit of vacuum breaker and disconnect switch |
-
2013
- 2013-07-17 CN CN201320427546.6U patent/CN203377529U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346504A (en) * | 2013-07-17 | 2013-10-09 | 宁波天安（集团）股份有限公司 | Three-position solid insulation switchgear |
| CN105006767A (en) * | 2015-06-12 | 2015-10-28 | 杭州曙光电器有限公司 | Top-bottom isolation interchanged solid isolating switch structure |
| RU2642838C2 (en) * | 2016-04-25 | 2018-01-29 | Валерий Иванович Сафонов | High-voltage contact unit of vacuum breaker and disconnect switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |