CN1155035C - Vacuum switch and vacuum switch gear - Google Patents
Vacuum switch and vacuum switch gear Download PDFInfo
- Publication number
- CN1155035C CN1155035C CNB998010138A CN99801013A CN1155035C CN 1155035 C CN1155035 C CN 1155035C CN B998010138 A CNB998010138 A CN B998010138A CN 99801013 A CN99801013 A CN 99801013A CN 1155035 C CN1155035 C CN 1155035C
- Authority
- CN
- China
- Prior art keywords
- vacuum switch
- vacuum
- canister
- insulating material
- switching device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/6623—Details relating to the encasing or the outside layers of the vacuum switch housings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/022—Details particular to three-phase circuit breakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
Abstract
Remarkably downsized and light-weighted vacuum switch and vacuum switch gear for increasing safety in maintenance and inspection, wherein the vacuum switch comprises a vacuum container formed of a fixed insulator and a metallic container covered with an insulator having a ground contact layer on its outer surface and fixed and movable electrodes insulated from each other, and the vacuum switch gear uses the vacuum switch.
Description
Invention field
The present invention relates to a kind of vacuum switch and be the vacuum switching device of characteristics with the vacuum tank of ground connection, the vacuum tank of this ground connection comprises canister and solid insulator, canister spraying one deck insulating material has a ground plane on the outer surface of this layer insulating material.
Background of invention
Referring to Fig. 4, in the vacuum tank inside of vacuum switch 1, dispose an arc shield 9, be used to suppress lip-deep corrosion along insulator 2.Yet, owing to the electric field that must be noted that in arc shield 9 ends, so reducing aspect the radial dimension of vacuum switch limitation is arranged.In vacuum switch 1 commonly used, canister 3a and bus side conductor 14 are live parts, and are exposed in the atmosphere.Be used at vacuum switch 1 under the situation of vacuum switching device, must consider to make it between live part and each phase, driver and stuffing box, keep enough insulation distances, as shown in Figure 5 and Figure 6.Therefore, limitation is arranged aspect very little switching device being made on the size.
Have again, because canister 3a and bus side conductor 14 are live parts, thus can take place to contact phase fault or the earth fault that causes owing to wrong, and accident can damage sometimes.
Require the distribution that can improve fail safe and the power transformation system of a kind of compactness of exploitation, so that reduce generation at maintenance and inspection duration of work electric shock accidents, and can solve in order to deal with the demand of the consumption electric power that increases day by day in crowded urban district, and be difficult to find the problem in distribution substation place.
The purpose of this invention is to provide a kind of vacuum switch and vacuum switching device, this vacuum switching device can improve the fail safe at maintenance and inspection duration of work, and it is very little very light with weight to make size.
Summary of the invention
The invention provides a kind of vacuum switching device, this vacuum switching device comprises some vacuum switches and a control section that is used for control operation mechanism, wherein each vacuum switch all comprises: the vacuum tank of a ground connection, in this vacuum tank, canister 3 and metallic insulator 2a and 2b fix with for example ceramic hermetic type, above-mentioned canister spraying one deck insulating material 4 is provided with a ground plane 5 on the outer surface of insulating material 4; Pass the fixed electrode 6 of the sub-2a configuration of fixed insulation; Pass solid insulator 2b and be in the float electrode 7 that the position that contacts and leave fixed electrode 6 concerns configuration; And movable part, it is connected to operating mechanism and the float electrode that is used to drive float electrode 7.In the present invention, switch means a kind of machine that switches on and off between fixed electrode 6 and the float electrode 7 of carrying out.Switching device means a kind of machine that comprises control device and contain following combination, and this combination comprises: one or more switch elements; One or more unit among operating unit, measuring unit, protected location and the regulon; And the interconnect in the stuffing box.In addition, except said structure, switching device also comprises one group of these machine and has the unit of annex and supporting structure, and comprises the control section that is used for control operation mechanism.
In the present invention, vacuum pressure is lower than 10
-4Torr is lower than 10
-6Torr is better, and particularly preferably pressure is lower than 10
-8Torr.
Therefore, in order to keep reaching between bus side conductor 14 and the ground plane 5 resistance to pressure between load-side conductor 15 and the ground plane 5, the surface configuration of solid insulator 2a, 2b must prolong as far as possible along the distance that is exposed at surface in the atmosphere in atmospheric side.For example, can consider that this shape is a kind of level and smooth curved surface, or a kind of partially or completely folding surface.
The advised material that is used for insulator 4 is some insulating material, and as epoxy resin, pottery etc., still, the electro-insulating rubber that has with canister height sticking property is preferred.The ground plane 5 that is arranged on the insulating material 4 can be gone up formation by a kind of electric conducting material being applied, electroplates or bond to the surface.
Vacuum switch according to invention comprises:
Be used for the solid insulator that between canister and fixed electrode, insulate;
Be used for the solid insulator that between canister and float electrode, insulate;
The vacuum tank of ground connection, it comprises canister and the solid insulator that covers one deck insulating material, on the outer surface of insulating material, has a ground plane; With
Float electrode, its hermetically sealing is in the inside of vacuum tank, and float electrode is driven by operating mechanism.
In addition, comprise according to vacuum switch of the present invention:
Be used for the solid insulator that between canister and fixed electrode, insulate;
Be used for the solid insulator that between canister and float electrode, insulate;
The vacuum tank of ground connection, it comprises canister and each solid insulator that covers one deck insulating material, and a ground plane is arranged on the outer surface of insulating material;
Float electrode, its hermetically sealing is in the inside of vacuum tank, and float electrode is driven by operating mechanism; With
Fixed electrode, its hermetically sealing is in the inside of vacuum tank, and fixed electrode is connected on the power line.
In addition, comprise according to vacuum switching device of the present invention:
Some vacuum switches;
Be used to drive the operating mechanism of float electrode;
The operation compartment that is used for control operation mechanism; With
The vacuum tank of ground connection, it contains some vacuum switches, operating mechanism and operation compartment, wherein:
Each vacuum switch all comprises:
Be used for the solid insulator that between canister and fixed electrode, insulate;
Be used for the solid insulator that between canister and float electrode, insulate;
The vacuum tank of ground connection, it comprises canister and each solid insulator that covers one deck insulating material, has a ground plane on the outer surface of insulating material;
Float electrode, its hermetically sealing is in the inside of vacuum tank, and float electrode is driven by operating mechanism; With
Fixed electrode, its hermetically sealing is in the inside of vacuum tank, and fixed electrode is connected on the power line.
To brief description of drawings
Fig. 1 is the sectional view that a vacuum switch embodiment of the present invention is shown.
Fig. 2 is the sectional view that a vacuum switching device embodiment of the present invention is shown.
Fig. 3 is the side cross-sectional, view that a vacuum switching device embodiment of the present invention is shown.
Fig. 4 is the sectional view that a kind of vacuum switch commonly used is shown.
Fig. 5 is the sectional view that a kind of vacuum switching device commonly used is shown.
Fig. 6 is the side cross-sectional, view that a kind of vacuum switching device commonly used is shown.
The preferred embodiment explanation
Fig. 1 illustrates the basic structure according to 1 one embodiment of vacuum switch of the present invention.Vacuum tank comprises: canister 3, solid insulator 2a and 2b, insulator 4 and ground plane 5.Canister 3 usefulness of vacuum tank for example stainless steel are made.Solid insulator 2a and 2b are respectively fixed to the upper part and the lower part of canister 3, and fixed electrode 6 and float electrode 7 are connected respectively on solid insulator 2a and the 2b.In detail, solid insulator 2a and 2b make with aluminium oxide ceramics.Float electrode 7 is supported by solid insulator 2b by bellows.Float electrode 7 can be passed through the action bars vertical moving.Fixed electrode 6 and float electrode 7 hermetically sealings are in vacuum tank inside.Vacuum is one of best insulation, therefore by each electrode being sealed in the vacuum tank of ground connection, can dwindle the distance of insulator to other element.To the insulator 4 of spray metal container 3, adopt the electro-insulating rubber of high bonding force.The ground plane 5 that is arranged on insulator 4 outer surfaces can be gone up formation by electric conducting material being applied, electroplates or bond to the surface.
Because canister 3 plays the effect of electric arc radome,, therefore canister can be formed in very compact in the radial direction so will canister do not make the complicated shape that resembles the common metal container.
Fig. 2 and Fig. 3 illustrate the basic structure of an embodiment of vacuum plant of the present invention.Because each vacuum switch is ground connection all, can be so be used for the vacuum switch of a phase near the vacuum switch and the drive configuration that are used for another phase.Therefore, it is very narrow that the distance between the distance between each vacuum switch, vacuum switch and driver and the closed box can make, and it is little and in light weight vacuum plant can be made size.
According to the present invention, the distance between each vacuum switch, the distance between vacuum switch and driver and the closed box can make very narrow.Thereby, a kind of vacuum plant can be provided, this vacuum plant size is very little and weight is very light.In addition, because each switch ground connection all, so can improve maintenance and check the fail safe of duration of work.
Claims (5)
1. a vacuum switch is characterized in that, comprising:
Canister;
Be fixed on fixed insulation at these canister two ends;
By the sub fixed electrode that supports of the fixed insulation of an above-mentioned side;
By the supporting of the fixed insulation of above-mentioned opposite side, simultaneously with the said fixing electrode to connect from the float electrode relation configuration, that drive by operating mechanism;
Cover on the above-mentioned canister and form insulating material;
Be formed at the ground plane on this insulating material outer surface.
2. vacuum switch as claimed in claim 1 is characterized in that, above-mentioned ground plane is by forming at the coating of above-mentioned insulating material outer surface, plating or bonding electric conducting material.
3. vacuum switch as claimed in claim 1 is characterized in that, the surface configuration of the said fixing insulator in atmospheric side is curved surface or the folding curved surface of at least a portion.
4. a vacuum switching device is characterized in that, with each phase disposed adjacent of the described vacuum switch of claim 1.
5. a vacuum switching device is characterized in that, with described vacuum switch of claim 1 and driver disposed adjacent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29781498 | 1998-10-20 | ||
| JP297814/1998 | 1998-10-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1273684A CN1273684A (en) | 2000-11-15 |
| CN1155035C true CN1155035C (en) | 2004-06-23 |
Family
ID=17851516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998010138A Expired - Fee Related CN1155035C (en) | 1998-10-20 | 1999-07-14 | Vacuum switch and vacuum switch gear |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1124242B1 (en) |
| JP (1) | JP4276787B2 (en) |
| CN (1) | CN1155035C (en) |
| DE (1) | DE69918156T2 (en) |
| HK (1) | HK1032845A1 (en) |
| WO (1) | WO2000024016A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4537569B2 (en) * | 2000-04-24 | 2010-09-01 | 三菱電機株式会社 | Vacuum insulated switchgear and manufacturing method thereof |
| EP2071687A1 (en) * | 2007-12-10 | 2009-06-17 | ABB Technology AG | Medium-voltage or high-voltage switchgear assembly |
| US20140374383A1 (en) * | 2013-06-25 | 2014-12-25 | Tetsu Shioiri | Tank-type vacuum circuit breaker |
| WO2016039250A1 (en) * | 2014-09-09 | 2016-03-17 | 三菱電機株式会社 | Vacuum circuit-breaker |
| DE102016214752A1 (en) * | 2016-08-09 | 2018-02-15 | Siemens Aktiengesellschaft | Process for producing a ceramic insulator |
| CN114203475A (en) * | 2021-12-03 | 2022-03-18 | 北京中车赛德铁道电气科技有限公司 | Grounding switch with reinforced insulation moving and static contact structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2152527A1 (en) * | 1970-10-26 | 1972-04-27 | Int Standard Electric Corp | Vacuum switch that is actuated by elastic deformation of the housing |
| US3823288A (en) * | 1972-11-01 | 1974-07-09 | Ite Imperial Corp | Vacuum interrupter capacitance discharge and contact grounding system |
| JPS5053869A (en) * | 1973-09-12 | 1975-05-13 | ||
| JPS56114235A (en) * | 1980-02-14 | 1981-09-08 | Mitsubishi Electric Corp | Gas insulating switching device |
| JPS5954135A (en) * | 1982-09-22 | 1984-03-28 | 株式会社東芝 | Vacuum bulb |
| DD226690A1 (en) * | 1984-09-24 | 1985-08-28 | Buchwitz Otto Starkstrom | A pole |
-
1999
- 1999-07-14 JP JP2000577678A patent/JP4276787B2/en not_active Expired - Fee Related
- 1999-07-14 CN CNB998010138A patent/CN1155035C/en not_active Expired - Fee Related
- 1999-07-14 EP EP99929833A patent/EP1124242B1/en not_active Expired - Lifetime
- 1999-07-14 DE DE69918156T patent/DE69918156T2/en not_active Expired - Lifetime
- 1999-07-14 WO PCT/JP1999/003800 patent/WO2000024016A1/en active IP Right Grant
-
2001
- 2001-05-15 HK HK01103348A patent/HK1032845A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000024016A1 (en) | 2000-04-27 |
| DE69918156D1 (en) | 2004-07-22 |
| EP1124242B1 (en) | 2004-06-16 |
| EP1124242A1 (en) | 2001-08-16 |
| HK1032845A1 (en) | 2001-08-03 |
| CN1273684A (en) | 2000-11-15 |
| EP1124242A4 (en) | 2002-07-17 |
| JP4276787B2 (en) | 2009-06-10 |
| DE69918156T2 (en) | 2005-08-04 |
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| SE01 | Entry into force of request for substantive examination | ||
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