CN103346504A - Three-position solid insulation switchgear - Google Patents
Three-position solid insulation switchgear Download PDFInfo
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- CN103346504A CN103346504A CN2013103060758A CN201310306075A CN103346504A CN 103346504 A CN103346504 A CN 103346504A CN 2013103060758 A CN2013103060758 A CN 2013103060758A CN 201310306075 A CN201310306075 A CN 201310306075A CN 103346504 A CN103346504 A CN 103346504A
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- major loop
- insulation shell
- main shaft
- loop casing
- phase major
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Abstract
The invention discloses a three-position solid insulation switchgear. The three-position solid insulation switchgear comprises an A-phase main loop box body, a B-phase main loop box body and a C-phase main loop box body, the A-phase main loop box body, the B-phase main loop box body and the C-phase main loop box body are assembled together in a parallel mode and share a main shaft, the main shaft is rotated to drive a separation cutter to swing around a static contact seat through a turning handle and a separation cutter insulation draw rod, and the separation cutter is made to carry out switching contact between an input end and a grounding static contact or to stay between the input end and the grounding static contact to form a separation position. Due to the fact that the three-position solid insulation switchgear is used, a three-position switch function can be effectively achieved through the separation cutter, a main shaft is used for being rotated in multiple isolation pieces, the structure is simple, and the operation is convenient; three working positions can be seen through an observation window; damp-proof measures are arranged inside an insulation shell, and a damp-proof box is replaced by observing the condition that drying agents in a drying agent box are damped and deepened.
Description
Technical field
The present invention relates to the high-tension distribution equipment technical field, especially a kind of three station solid-state insulated switchgears.
Background technology
SF
6The inflation cabinet is used very extensive in middle pressure field, but uses SF in a large number
6Gas can bring environment and pollute and destroy, 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.The solid insulation ring main unit is considered to a kind of environmentally friendly switch cubicle, and it is that array switch is poured into a mould with the whole APG of employing of relevant live part epoxy resin, has made the solid insulation power supply unit by the automatic pressure gel Technology design, no SF
6The gas pernicious gas, therefore the solid insulation ring main unit has obtained developing rapidly in recent years.Producer of many families has released solid-state insulated switchgear in the market, many products possess the three-station function in solid-state insulated switchgear, be have 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, denomination of invention is a kind of three station solid insulating fully enclosed looped network cabinets, its feature is its conducting and isolated location by the isolation knife realization, yet its grounding function is the conversion that realizes three kinds of service positions by the earthing rod device.
The patent No. is 201010205862.X, and denomination of invention is 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 denomination of invention is the novel solid insulated switch, and characteristics are conversions of three kinds of service positions of realizing by conductive moving contact and earthy vacuum tube.
Though 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 the switch cubicle.Though in switchgear, adopted fully closed structure to be used for being hedged off from the outer world in addition, 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.
Summary of the invention
The purpose of this invention is to provide a kind of three station solid-state insulated switchgears, utilize an isolation knife to finish the conversion of three service positions on the one hand, and three service positions are visual, on the other hand, in switchgear, be provided with damp-proof device and improve insulating reliability.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of three station solid-state insulated switchgears wherein, comprise the A phase major loop casing, B phase major loop casing and the C that are assembled together side by side major loop casing mutually:
Described A phase major loop casing, described B phase major loop casing, described C phase major loop casing comprise respectively:
One insulation shell is sealed with a vacuum interrupter and a fixed contact in the described insulation shell, the moved end of described vacuum interrupter connects one first insulated tension pole, described insulation shell one side opening, and by encapsulation cover plate realization encapsulation;
One touch base, described touch base are fixedly installed on described insulation shell inside, and are flexible coupling by one and are connected with described vacuum interrupter moved end, an end of the described touch base isolation knife that is rotatably connected, and described isolation knife realizes change in location by a driving-chain;
One ground connection fixed contact, described ground connection fixed contact is fixed on the inboard of described encapsulation cover plate; Input and output connect plug-in type bus and user side respectively.
Above-mentioned three station solid-state insulated switchgears, wherein, described driving-chain comprises 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 the described main shaft, and described main shaft is connected with described isolation knife by described connecting lever and described second insulated tension pole.
Above-mentioned three station solid-state 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-state insulated switchgears, wherein, described output connects output cable by a cable adapter.
Above-mentioned three station solid-state insulated switchgears, wherein, described encapsulation cover plate is provided with an observation window, is positioned at the upside on the described encapsulation cover plate plate face, is used for observing the position that is positioned at described insulation shell isolation knife.
Above-mentioned three station solid-state 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 the 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 invention exists:
(1) adopt an isolation knife to realize the three-station function in each major loop casing, and by the rotation of the isolation knife in the 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 the 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.
Description of drawings
Fig. 1 is the cutaway view of the present invention's three station solid-state insulated switchgears, further is in conduction position for isolation knife;
Fig. 2 is the cutaway view of the present invention's three station solid-state insulated switchgears, further is in the isolated location for isolation knife;
Fig. 3 is the cutaway view of the present invention's three station solid-state insulated switchgears, further is in earthing position for isolation knife;
Fig. 4 is that figure is cutd open in the part signal of the front view of the present invention's three station solid-state insulated switchgears.
Description of reference numerals:
Insulation shell 1, vacuum interrupter 2, first insulated tension pole 3, encapsulation cover plate 4, touch base 5, fixed contact 6, ground connection fixed contact 7, isolation knife 8, main shaft 9, drive connecting lever 10, connecting lever 11, 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 case 21, cable adapter 22, output 23, lip-type packing 24
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but not as restriction of the present invention.
Please referring to Fig. 1, Fig. 2 and shown in Figure 3, the present invention's three station solid-state insulated switchgears comprise the A phase major loop casing, B phase major loop casing and the C that are assembled together side by side major loop casing mutually, A phase major loop casing, B phase major loop casing, C phase major loop casing comprise insulation shell 1 respectively, isolation knife 8, touch base 5, ground connection fixed contact 7 and encapsulation cover plate 4, and input 14 and output 23.
Be sealed with vacuum interrupter 2, fixed contact 6 in the insulation shell 1, the moved end of vacuum interrupter 2 connects first insulated tension pole 3, insulation shell 1 one side openings, and by encapsulation cover plate 4 realization encapsulation, be provided with O-ring seals between the opening part of insulation shell 1 one sides and the encapsulation cover plate 4, be provided with seal receptacle 20 between first insulated tension pole 3 and the encapsulation cover plate 4.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, in a preferred embodiment of the invention, driving-chain comprises 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 and be fixed on the main shaft 9, main shaft 9 is connected with isolation knife 8 by connecting lever 11 and 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 drives three isolation knife 8 and motions of other associated components in the casing simultaneously in rotary course.
Ground connection fixed 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 the encapsulation cover plate 4 plate faces, is used for observing the position that is positioned at insulation shell 1 isolation knife 8.Be provided with O-ring seals between observation window 17 and the 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 the 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 inner drier 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 the insulation shell 1, and moisture effect can be further strengthened in the design of adding transparent desiccant box 16.
In concrete preferred embodiment of the present invention, insulation shell 1 and vacuum interrupter 2, fixed contact 6 pour into an integrated entity by epoxide resin material.
In the preferred implementation, whole equipment can be placed in one and support on the case 21, and 22 of cable adapters are positioned at and support case 21.
With reference to Fig. 1, when isolation knife 8 was in conduction position, electric current entered from input 14, through fixed contact 6, isolation knife 8, touch base 5, be flexible coupling 19, vacuum interrupter 2, finally export output cable to by cable adapter 22.
With reference to Fig. 2, when isolation knife 8 was in the isolated location, complete equipment can be regarded as and be in stand-by state.
With reference to Fig. 3, when isolation knife 8 was in earthing position, isolation knife 8 was connected with ground connection fixed contact 7, this moment by isolation knife 8, touch base 5, be flexible coupling 19 and the quick combined floodgate of vacuum interrupter 2 moved ends, realize output cable ground connection the closing that cable adapter 22 connects closed.
A kind of three station solid-state insulated switchgears of the present invention adopt an isolation knife to realize the three-station function, and by the rotation of the isolation knife in the main shaft drives three-phase major loop casing,, it is simple in structure, and is 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 the 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 above is only for preferred embodiment of the present invention, is not so limits claim of the present invention, so the equivalent structure that all utilizations specification of the present invention and diagramatic content have been done changes, all is included in protection scope of the present invention.
Claims (6)
1. a station solid-state insulated switchgear is characterized in that, comprises the A phase major loop casing, B phase major loop casing and the C that are assembled together side by side major loop casing mutually:
Described A phase major loop casing, described B phase major loop casing, described C phase major loop casing comprise respectively:
One insulation shell is sealed with a vacuum interrupter and a fixed contact in the described insulation shell, the moved end of described vacuum interrupter connects one first insulated tension pole, described insulation shell one side opening, and by encapsulation cover plate realization encapsulation;
One touch base, described touch base are fixedly installed on described insulation shell inside, and are flexible coupling by one and are connected with described vacuum interrupter moved end, an end of the described touch base isolation knife that is rotatably connected, and described isolation knife realizes change in location by a driving-chain;
One ground connection fixed contact, described ground connection fixed contact is fixed on the inboard of described encapsulation cover plate;
Input and output connect plug-in type bus and user side respectively.
2. according to the described three station solid-state insulated switchgears of claim 1, it is characterized in that, described driving-chain comprises 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 the described main shaft, and described main shaft is connected with described isolation knife by described connecting lever and described second insulated tension pole.
3. according to the described three station fixed insulation switchgears of claim 2, it 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. according to the described three station solid-state insulated switchgears of claim 1, it is characterized in that described output connects output cable by a cable adapter.
5. according to the described three station solid-state insulated switchgears of claim 1, it is characterized in that described encapsulation cover plate is provided with an observation window, be positioned at the upside on the described encapsulation cover plate plate face, be used for observing the position that is positioned at described insulation shell isolation knife.
6. according to the described three station solid-state insulated switchgears of 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 the 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 |
|---|---|---|---|
| CN2013103060758A CN103346504A (en) | 2013-07-17 | 2013-07-17 | Three-position solid insulation switchgear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103060758A CN103346504A (en) | 2013-07-17 | 2013-07-17 | Three-position solid insulation switchgear |
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| CN103346504A true CN103346504A (en) | 2013-10-09 |
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| CN2013103060758A Pending CN103346504A (en) | 2013-07-17 | 2013-07-17 | Three-position solid insulation switchgear |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681092A (en) * | 2013-11-29 | 2014-03-26 | 国家电网公司 | Solid insulation isolation earthing switch device and fixing and encapsulating device thereof |
| CN104466698A (en) * | 2014-12-10 | 2015-03-25 | 中国能建集团装备有限公司南京技术中心 | Solid insulation ring main unit main insulation module |
| CN104576160A (en) * | 2014-12-18 | 2015-04-29 | 珠海康晋电气有限公司 | Solid insulating three-position isolating switch with grounding switching off capability |
| CN104917095A (en) * | 2015-06-26 | 2015-09-16 | 厦门协成实业有限公司 | Complete coating-type three-position isolation circuit breaker |
| CN105024298A (en) * | 2015-08-18 | 2015-11-04 | 国家电网公司 | Substation high-voltage grounding handcart and monitoring system thereof |
| WO2017107744A1 (en) * | 2015-12-24 | 2017-06-29 | 国家电网公司 | Main circuit of solid insulated switchgear and solid insulated switchgear using the main circuit |
| CN109449813A (en) * | 2018-12-28 | 2019-03-08 | 南通苏源恒炫电气有限公司 | A kind of highland and severe cold type solid-state insulated switchgear |
| CN109637883A (en) * | 2018-11-19 | 2019-04-16 | 珠海许继电气有限公司 | A kind of switching device |
| CN115863080A (en) * | 2023-02-24 | 2023-03-28 | 厦门顾德益电气股份有限公司 | Solid switch device with visible state |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103151723A (en) * | 2013-04-07 | 2013-06-12 | 深圳市金博联电力技术有限公司 | Completely-sealed and complete-solid insulation ring main unit |
| CN203377529U (en) * | 2013-07-17 | 2014-01-01 | 宁波天安（集团）股份有限公司 | A three-position solid insulated switch device |
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2013
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| CN103151723A (en) * | 2013-04-07 | 2013-06-12 | 深圳市金博联电力技术有限公司 | Completely-sealed and complete-solid insulation ring main unit |
| CN203377529U (en) * | 2013-07-17 | 2014-01-01 | 宁波天安（集团）股份有限公司 | A three-position solid insulated switch device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681092A (en) * | 2013-11-29 | 2014-03-26 | 国家电网公司 | Solid insulation isolation earthing switch device and fixing and encapsulating device thereof |
| CN103681092B (en) * | 2013-11-29 | 2016-05-25 | 国家电网公司 | Solid insulation isolation earthing switch device and sealing unit thereof |
| CN104466698A (en) * | 2014-12-10 | 2015-03-25 | 中国能建集团装备有限公司南京技术中心 | Solid insulation ring main unit main insulation module |
| CN104576160A (en) * | 2014-12-18 | 2015-04-29 | 珠海康晋电气有限公司 | Solid insulating three-position isolating switch with grounding switching off capability |
| CN104917095A (en) * | 2015-06-26 | 2015-09-16 | 厦门协成实业有限公司 | Complete coating-type three-position isolation circuit breaker |
| CN105024298A (en) * | 2015-08-18 | 2015-11-04 | 国家电网公司 | Substation high-voltage grounding handcart and monitoring system thereof |
| WO2017107744A1 (en) * | 2015-12-24 | 2017-06-29 | 国家电网公司 | Main circuit of solid insulated switchgear and solid insulated switchgear using the main circuit |
| CN109637883A (en) * | 2018-11-19 | 2019-04-16 | 珠海许继电气有限公司 | A kind of switching device |
| CN109449813A (en) * | 2018-12-28 | 2019-03-08 | 南通苏源恒炫电气有限公司 | A kind of highland and severe cold type solid-state insulated switchgear |
| CN115863080A (en) * | 2023-02-24 | 2023-03-28 | 厦门顾德益电气股份有限公司 | Solid switch device with visible state |
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Application publication date: 20131009 |