CN1267897A - Switch mechanism - Google Patents
Switch mechanism Download PDFInfo
- Publication number
- CN1267897A CN1267897A CN 00104648 CN00104648A CN1267897A CN 1267897 A CN1267897 A CN 1267897A CN 00104648 CN00104648 CN 00104648 CN 00104648 A CN00104648 A CN 00104648A CN 1267897 A CN1267897 A CN 1267897A
- Authority
- CN
- China
- Prior art keywords
- contact shoe
- electric field
- movable contact
- switching mechanism
- shoe
- 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.)
- Pending
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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
-
- 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
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66284—Details relating to the electrical field properties of screens in vacuum switches
-
- 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
Abstract
A switchgear which has a disc-like fixed contactor 6, a moving contactor 10 coming into and out of contact with the disc-like fixed contactor 6, an electric field easing member 7 being placed in the surrounding of the fixed contactor 6, the portion in the surrounding of the fixed contactor 6 projecting from the fixed contactor 6 to the moving contactor 10 side, an electric field easing shield 11 being placed in the surrounding of the moving contactor 10 and having a portion projecting from the moving contactor 10 to the fixed contactor 6 side when the moving contact 10 is at a position out of contact with the fixed contactor 6, and a vacuum vessel 1 for housing the fixed contactor 6, the moving contactor 10, the electric field easing member 7, and the electric field easing shield 11.
Description
The present invention relates in keeping the vacuum tank of high vacuum, to have the contactor unit, and the circuit between power supply and load equipment is carried out the switching mechanism (Switch gear) of switch, particularly can prevent the switching mechanism that withstand voltage properties reduces.
Circuit between power supply and load equipment is carried out the switching mechanism of switch, in keeping the vacuum tank of high vacuum, have the contactor unit, and utilize height insulation endurance and good extinguishing arc ability in high vacuum, stably carry out the blocking of electric current.
Fig. 5 is a longitudinal section of representing switching mechanism in the past.In the drawings, the 1st, vacuum tank.Vacuum tank 1 is to utilize lower side cover plate 3 and upper side cover plate 4, and the two ends of the insulated tube cylindraceous 2 of airtight formation sidepiece make the inner container that keeps high vacuum.
With the inside and outside state that runs through vacuum tank 1, columned fixed conductor rod 5 is fixed on the central portion of lower side cover plate 3, by metal bond material 7, the fixedly contact shoe 6 of the diameter of discoid, formation and fixed conductor rod 5 same degree is installed in vacuum tank 1 inside fixed conductor rod 5 above, and fixedly the top edge part chamfered edge of contact shoe 6 becomes to prevent the curved surface that electric field is concentrated.
The bellows 9 of the retractile snake abdomen shape of the inboard by being encapsulated in vacuum tank 1 axially moves the inside and outside columned movable stub 8 that supports the central portion by upper side cover plate 4 freely and run through vacuum tank 1.With the state of inserting embedding, the lower end of movable stub 8 that movable contact shoe 10 with the diameter of movable stub 8 same degree is fixed on the inside of vacuum tank 1 will be formed, its lower surface for fixing contact shoe 6 opposite circular shapes, and the following edge part chamfered edge of movable contact shoe 10 become to prevent the curved surface that electric field is concentrated.
Thickly be encapsulated in because of upper end gas on the upper side cover plate 4 of vacuum tank 1 bellows 9, cover movable stub 8, the bottom is encapsulated in the bottom that makes movable stub 8 airtightly exposes on the position of suitable length degree, be accompanied by axial straight line to movable stub 8 and move and stretch, so can keep the air-tightness of vacuum tank 1.
Bellows 9 is covered on the bottom surface and sidepiece of the bellows cover 13 round-ended cylinder shape, that form with low conductivity materials such as stainless steels, protection is because from occurring in fixedly contact shoe 6 and the movably metallic vapour of the electric arc between the contact shoe 10.The bottom surface of bellows cover 13 is contacted in the lower end of bellows 9, and support by the movable stub 8 that runs through bottom center.And, make the length of the sidepiece of bellows cover 13 become the occasion that is moved upward at movable stub 8 and do not contact with top cover plate 4.
In the switching mechanism in the past that forms like this, fixedly top and movable the following of contact shoe 10 of contact shoe 6 is relative position, in the occasion that movable stub 8 moves downwards, movable contact shoe 10 contacts with fixing contact shoe 6, and switching mechanism becomes the utmost point state that closes.In addition, during breaking current, fixedly between contact shoe 6 and the movable contact shoe 10 electric arc taking place in that the straight line that oppositely separates upward from the movable stub 8 that closes utmost point state and become out utmost point state is moved, is becoming out utmost point state after the extinguishing arc.
But, in switching mechanism in the past, because the electric arc that when breaking current, between fixing contact shoe 6 and movable contact shoe 10, takes place, the fixedly contact surface loss of contact shoe 6 and movable contact shoe 10, the coarse meeting generation of this contact surface tip.
In addition, close the occasion that the utmost point is switched at the coarse state of contact surface, because the tip is arranged, so fixedly the resistance value of the contact site of contact shoe 6 and movable contact shoe 10 increases, therefore, high heat takes place make the contact site fusing, when opening the utmost point then, can further make the coarse and generation tip of contact surface.
On the tip outstanding, because electric field concentrates, so the problem that withstand voltage properties reduces can take place from the fixedly contact shoe made like this 6 and movable contact shoe 10.
In addition, reason is concentrated and is stopped easily in the end of electric arc in electric field, so the problem that causes local loss and further repeat to make the coarse vicious circle of contact surface is arranged.
The present invention is in view of foregoing problems, and its purpose is, by means of at fixedly contact shoe and movably comprising by each fixedly contact shoe or the movably outstanding electric field decay member of contact shoe of contact shoe, provides the switching mechanism that can prevent the withstand voltage properties reduction on every side.
In addition, the object of the invention also is, by means of comprise in fixing contact shoe side have than fixing contact shoe diameter big discoid, be clipped in the fixedly electric field decay member between the contact shoe and fixed conductor rod, movable contact shoe side comprise have than movable contact shoe and movable contact rod diameter big cylindraceous, be configured in the electric field decay member around movable contact shoe and the movable stub, because of can be for example and the bellows cover dual-purpose, so compare with switching mechanism in the past, can not increase member number the switching mechanism that can prevent that withstand voltage properties from reducing is provided.
With the relevant switching mechanism of the 1st invention, comprise
Fixing contact shoe,
The movable contact shoe that contacts, separates with described fixedly contact shoe,
From side-prominent the 1st electric field of the described movable contact shoe of described fixedly contact shoe side direction decay member and
From side-prominent the 2nd electric field decay member of the described fixedly contact shoe of described movable contact shoe side direction.
With the relevant switching mechanism of the 2nd invention, be in the switching mechanism relevant with the 1st invention,
Described the 1st electric field decay member is side-prominent to described movable contact shoe by described fixedly contact shoe,
Described the 2nd electric field decay member be configured in described movable contact shoe around, in the occasion of described movable contact shoe, side-prominent to described fixedly contact shoe by described movable contact shoe at disconnected position.
The switching mechanism of the 1st invention and the 2nd invention, by means of around fixing contact shoe and movable contact shoe, comprising by each fixedly contact shoe or the outstanding electric field decay member of movable contact shoe, can produce the occasion of tip even fixedly the contact surface of the movable contact shoe of contact shoe and (perhaps) is coarse, also can decay to the concentrating of the electric field of each tip, can prevent the reduction of withstand voltage properties.
With the relevant switching mechanism of the 3rd invention, be in the switching mechanism relevant with the 1st invention,
Described fixedly contact shoe has discoid,
Described the 1st electric field decay member is to have than the big discoid or ring-type of described fixedly contact shoe diameter, is fixed on the described fixedly contact shoe, and the part around the described fixedly contact shoe, side-prominent by the described movable contact shoe of described fixedly contact shoe side direction,
Have than big cylindric of described movable contact shoe diameter and be configured in around the described movable contact shoe, described movable contact shoe has by described movable contact shoe to the side-prominent part of described fixedly contact shoe in the occasion of disconnected position.
With the relevant switching mechanism of the 4th invention, be in the switching mechanism relevant with the 1st invention, also comprise
Receipts are adorned the container of described fixedly contact shoe, described movable contact shoe, described the 1st electric field decay member and described the 2nd electric field decay member.
The switching mechanism of the 3rd invention, have than big discoid of fixing contact shoe diameter by means of comprising in fixing contact shoe side, be clipped in the fixedly decay of the electric field between the contact shoe and fixed conductor rod member, comprise having in movable contact shoe side than movable contact shoe and movable contact rod diameter big cylindraceous, be configured in movable contact shoe and movable stub electric field decay member on every side, because of being out of shape or replacing switching mechanism in the past, bellows cover for example, so can not increase the number of member, even the rough surface at fixing contact shoe and (perhaps) movable contact shoe can produce the occasion of tip, also can decay to the concentrating of the electric field of each tip, prevent the reduction of withstand voltage properties.
In addition, move to good with making movable contact shoe linearity.
Fig. 1 is the longitudinal section of opening utmost point state of the switching mechanism of expression example 1.
Fig. 2 is the longitudinal section that closes utmost point state of the switching mechanism of expression example 1.
Fig. 3 is Simulation result is carried out in expression to the present invention and switching mechanism in the past a figure.
Fig. 4 is the longitudinal section of opening utmost point state of the switching mechanism of expression example 2.
Fig. 5 is a longitudinal section of representing switching mechanism in the past.
Below, describe implementing example of the present invention with reference to accompanying drawing.
Example 1
Fig. 1 and Fig. 2 are the longitudinal sections of the switching mechanism of expression the invention process form 1, and Fig. 1 represents out utmost point state, and Fig. 2 represents to close utmost point state.In the drawings, the 1st, vacuum tank, vacuum tank 1 are to utilize lower side cover plate 3 and upper side cover plate 4, the two ends of the insulated tube cylindraceous 2 of airtight formation sidepiece make the inner container that keeps high vacuum.
With the inside and outside state that runs through vacuum tank 1, columned fixed conductor rod 5 is fixed on the central portion of lower side cover plate 3, make the upper part diameter of fixed conductor rod 5 of inside of vacuum tank 1 bigger than other parts.
By central portion is discoid, the metal bond material 7 that formation is identical with the upper part diameter of fixed conductor rod 5 of pit, with fixedly contact shoe 6 discoid, that form the diameter littler than the upper part diameter of fixed conductor rod 5, be installed on the top central portion of fixed conductor rod 5, the top edge part chamfered edge of fixing contact shoe 6 is become to prevent the curved surface that electric field is concentrated.
In addition, outstanding upward by fixing contact shoe 6, form fixing contact shoe 6 around, be the edge part of metal bond material 7, become fixing contact shoe 6 be embedded in state on the central portion of pit of metal bond material 7.In addition, will become to prevent the curved surface that electric field is concentrated to the outstanding edge part in the top of metal bond material 7 also chamfered edge.
Like this, because of metal bond material 7 sections are concavities, so near can decay the fixedly contact shoe of burying underground 6 electric field is concentrated.
The bellows 9 of the retractile snake abdomen shape of the inboard by being encapsulated in vacuum tank 1 axially moves the inside and outside columned movable stub 8 that supports the central portion by upper side cover plate 4 freely and run through vacuum tank 1.With the state of inserting embedding, form the lower end of movable stub 8 that movable contact shoe 10 with the diameter of movable stub 8 same degree is fixed on the inside of vacuum tank 1, and the following edge part chamfered edge of movable contact shoe 10 is become to prevent the curved surface that electric field is concentrated.
Be encapsulated in airtightly because of upper end on the upper side cover plate 4 of vacuum tank 1 bellows 9, cover movable stub 8, the bottom is encapsulated in the bottom that makes movable stub 8 airtightly exposes on the position of suitable length degree, along with moving, stretches in the axial straight line of movable stub 8, so can keep the air-tightness of vacuum tank 1.
Around bellows 9, set electric field decay shielding 11 cylindraceous with the diameter that does not contact with bellows 9, its upper end is fixed on the upper side cover plate 4, the lower end of electric field decay shielding 11, inner flange plate-like ground is crooked to the inside.Like this, the lower end of electric field decay shielding 11 becomes at central part and has the planar of peristome, and forms the diameter of peristome than the diameter of movable stub 8 and movable contact shoe 10 slightly bigly, makes the front end of peristome crooked upward, concentrates to prevent electric field.
And, in the occasion of movable stub 8, forming the sidewall of electric field decay shielding 11 in the upper limit of movable area, its length makes by movable contact shoe 10 and becomes out outstanding state to fixing contact shoe 6 sides.
In addition, with low conductivity materials such as stainless steels, utilize processing methods such as extruding, the crooked position that forms electric field decay shielding 11 just becomes the curved surface that prevents that electric field from concentrating.
In addition, to relax shielding 11 identical with the bellows cover 13 of in the past switching mechanism because of electric field, possesses the function that protection is not subjected to metallic vapour that free electric arc takes place to influence, so utilize the electric field decay to shield 11 and without bellows cover 13, do not increase the member number.
In the switching mechanism of the present invention that forms like this, because be configured to the following relative of the top of fixing contact shoe 6 and movable contact shoe 10, so in the occasion that movable stub 8 moves downwards, movable contact shoe 10 contacts with fixing contact shoe 6, becomes the utmost point state that closes.In addition, during breaking current, fixedly between contact shoe 6 and the movable contact shoe 10 electric arc taking place in that the straight line that oppositely separates upward from the movable stub 8 that closes utmost point state and become out utmost point state is moved, is becoming out utmost point state after the extinguishing arc.
In addition, in the occasion of movable stub 8 in the upper limit of movable area, fixedly between the contact between contact shoe 6 and the movable contact shoe 10 apart from d1 than between the lower end of the upper end of metal bond material 7 and electric field decay shielding 11 apart from d2 length.In addition, when breaking current, between contact shoe 6 and the movable contact shoe 10 electric arc is taking place fixedly, and fixedly contact shoe 6 and the movably fusion of the contact site of contact shoe 10 that utilization brings owing to the heat that energising takes place, even produce the occasion of tip at rough surface, fixedly the distance between each tip of contact shoe 6 and movable contact shoe 10 between can be not distolateral than another of the jag of metal bond material 7 and electric field decay shielding 11 yet apart from the d2 weak point.Therefore, can decay, make the Electric Field Distribution between each contact shoe even to the concentrating of the electric field of each tip.
Below, Simulation result is described.Fig. 3 is Simulation result is carried out in expression to the present invention and switching mechanism in the past a curvilinear figure, with near the calculating electric field the end of the coarse contact shoe of the contact surface of in the past switching mechanism is 100%, and the calculating electric field when being applied to voltage on the axis of ordinates is drawn.
△ represents near the calculating electric field the end of the contact shoe that contact surface is coarse among the figure, comprises the calculating electric field of the switching mechanism of the present invention of electric field decay shielding, is 50% of the calculating electric field of the switching mechanism in the past that do not comprise electric field decay shielding.
Near among the figure central part of the coarse contact shoe of zero expression contact surface calculating electric field comprises the calculating electric field of the switching mechanism of the present invention of electric field decay shielding, is 70% of the calculating electric field of the switching mechanism in the past that do not comprise electric field decay shielding.
Show that to calculate the more little withstand voltage properties of electric field value high more, the analog result of simulating the coarse state of contact surface like this illustrates that switching mechanism of the present invention is better than in the past switching mechanism withstand voltage properties.
Example 2
Fig. 4 is the longitudinal section of opening utmost point state of the switching mechanism of expression the invention process form 2.Example 2 makes the diameter of fixed conductor rod 5 for certain, is provided with to have than the fixedly big discoid fixed conductor rod side electric field decay shielding 12 of contact shoe 6 diameters, replaces being used to bury underground the fixedly metal bond material 7 of contact shoe 6.
Fixed conductor rod side electric field decay shielding 12 be clipped in one heart the top of fixed conductor rod 5 and fixedly contact shoe 6 below, reason fixedly contact shoe 6 be projected into movable contact shoe 8 sides in case form fixing contact shoe 6 around, be the edge part of fixed conductor rod side electric field decay shielding 12, so become fixing contact shoe 6 is embedded in the decay state of the recess that shields 12 central portion of fixed conductor rod side electric field.
In addition,, utilize processing methods such as extruding, form fixed conductor rod side electric field decay shielding 12, make to form crooked position and marginal portion forms curved surface with low conductivity materials such as stainless steels, concentrated to prevent electric field.
In the example of the present invention 2 that forms like this,, fixed conductor rod 5 can be made the shape of the fixed diameter of easy shaping by means of the fixed conductor rod side electric field decay shielding 12 that can make more simply is set.
In addition, corresponding to the member of example 1, attached with identical label and omit its explanation.
As previously mentioned, in switching mechanism related to the present invention, by means of around fixing contact shoe and movable contact shoe, comprising by each fixedly contact shoe or the outstanding electric field decay member of movable contact shoe, even fixedly the rough surface of the movable contact shoe of contact shoe and (perhaps) can produce the occasion of tip, also can reach decay to the concentrating of the electric field of each tip, prevent the excellent results of the reduction of withstand voltage properties.
In addition, in switching mechanism related to the present invention, have than big discoid of fixing contact shoe diameter by means of comprising in fixing contact shoe side, be clipped in the fixedly decay of the electric field between the contact shoe and fixed conductor rod member, comprise having in movable contact shoe side than movable contact shoe and movable contact rod diameter big cylindraceous, be configured in movable contact shoe and movable stub electric field decay member on every side, because of being out of shape or replacing switching mechanism in the past, so can not increase the number of member, even the rough surface at fixing contact shoe and (perhaps) movable contact shoe can produce the occasion of tip, also can reach decay to the concentrating of the electric field of each tip, prevent the good effect of the reduction etc. of withstand voltage properties.
Claims (4)
1. a switching mechanism is characterized in that, comprises
Fixing contact shoe,
The movable contact shoe that contacts, separates with described fixedly contact shoe,
From side-prominent the 1st electric field of the described movable contact shoe of described fixedly contact shoe side direction decay member and
From side-prominent the 2nd electric field decay member of the described fixedly contact shoe of described movable contact shoe side direction.
2. switching mechanism as claimed in claim 1 is characterized in that,
Described the 1st electric field decay member is side-prominent to described movable contact shoe by described fixedly contact shoe,
Described the 2nd electric field decay member be configured in described movable contact shoe around, in the occasion of described movable contact shoe, side-prominent to described fixedly contact shoe by described movable contact shoe at disconnected position.
3. switching mechanism as claimed in claim 1 is characterized in that,
Described fixedly contact shoe has discoid,
Described the 1st electric field decay member is to have than the big discoid or ring-type of described fixedly contact shoe diameter, is fixed on the described fixedly contact shoe, and the part around the described fixedly contact shoe, side-prominent by the described movable contact shoe of described fixedly contact shoe side direction,
Have than big cylindric of described movable contact shoe diameter and be configured in around the described movable contact shoe, described movable contact shoe has by described movable contact shoe to the side-prominent part of described fixedly contact shoe in the occasion of disconnected position.
4. switching mechanism as claimed in claim 1 is characterized in that, also comprises
Receipts are adorned the container of described fixedly contact shoe, described movable contact shoe, described the 1st electric field decay member and described the 2nd electric field decay member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11074538A JP2000268684A (en) | 1999-03-18 | 1999-03-18 | Switchgear |
| JP074538/1999 | 1999-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1267897A true CN1267897A (en) | 2000-09-27 |
Family
ID=13550166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00104648 Pending CN1267897A (en) | 1999-03-18 | 2000-03-17 | Switch mechanism |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1037233A3 (en) |
| JP (1) | JP2000268684A (en) |
| KR (1) | KR20000071457A (en) |
| CN (1) | CN1267897A (en) |
| SG (1) | SG79304A1 (en) |
| TW (1) | TW445473B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312714C (en) * | 2002-06-27 | 2007-04-25 | 施耐德电器工业公司 | Vacuum tube for electric protective equipment such as switch or breaker |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5171298B2 (en) * | 2008-02-12 | 2013-03-27 | 株式会社東芝 | Resin mold vacuum valve |
| DE102009033982B4 (en) * | 2009-07-16 | 2011-06-01 | Siemens Aktiengesellschaft | Vacuum interrupter |
| JP6039266B2 (en) * | 2012-06-25 | 2016-12-07 | 株式会社東芝 | Vacuum valve |
| CN111816502B (en) * | 2020-08-27 | 2020-12-11 | 广东电网有限责任公司东莞供电局 | Operating mechanism of vacuum circuit breaker |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3239635A (en) * | 1964-11-17 | 1966-03-08 | Baude John | Disc shaped arcing contact structure producing predetermined arc blowout characteristic |
| DE2063120C3 (en) * | 1970-12-16 | 1981-04-23 | Siemens AG, 1000 Berlin und 8000 München | Vacuum switch with a ring-shaped contact surface |
| US4081640A (en) * | 1976-04-19 | 1978-03-28 | General Electric Company | Compact vacuum switch for high voltage circuit interruption |
| CA1084565A (en) * | 1976-07-21 | 1980-08-26 | James M. Lafferty | High-current vacuum switch with reduced contact erosion |
| US4250363A (en) * | 1978-12-06 | 1981-02-10 | Electric Power Research Institute, Inc. | Electrical circuit breaking device and method |
| DE3035875A1 (en) * | 1980-09-23 | 1982-05-06 | Siemens AG, 1000 Berlin und 8000 München | Vacuum switch contact device for HV and heavy currents - has contact coating tapered at outer edge to direct arc inwards |
| DE3302201A1 (en) * | 1983-01-24 | 1984-07-26 | Siemens AG, 1000 Berlin und 8000 München | CONTACT ARRANGEMENT FOR VACUUM SWITCHES |
| DE8534022U1 (en) * | 1985-12-03 | 1987-06-11 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
| JPH01128324A (en) * | 1987-11-13 | 1989-05-22 | Mitsubishi Electric Corp | Vacuum switch |
| DE19603081B4 (en) * | 1996-01-19 | 2004-09-30 | Müller, Ottmar, Prof. Dr.-Ing.habil. | High-voltage vacuum switch |
| DE19603158A1 (en) * | 1996-01-19 | 1997-07-24 | Fachhochschule Fuer Technik Un | HV vacuum switch with vacuum switching chamber |
| DE19806329A1 (en) * | 1998-02-05 | 1998-08-06 | Mueller Ottmar Prof Dr Ing Hab | High voltage vacuum switch |
-
1999
- 1999-03-18 JP JP11074538A patent/JP2000268684A/en active Pending
-
2000
- 2000-03-14 TW TW89104541A patent/TW445473B/en not_active IP Right Cessation
- 2000-03-14 SG SG200001504A patent/SG79304A1/en unknown
- 2000-03-17 EP EP00105357A patent/EP1037233A3/en not_active Withdrawn
- 2000-03-17 CN CN 00104648 patent/CN1267897A/en active Pending
- 2000-03-18 KR KR1020000013787A patent/KR20000071457A/en active IP Right Grant
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312714C (en) * | 2002-06-27 | 2007-04-25 | 施耐德电器工业公司 | Vacuum tube for electric protective equipment such as switch or breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| SG79304A1 (en) | 2001-03-20 |
| EP1037233A3 (en) | 2002-09-11 |
| TW445473B (en) | 2001-07-11 |
| EP1037233A2 (en) | 2000-09-20 |
| KR20000071457A (en) | 2000-11-25 |
| JP2000268684A (en) | 2000-09-29 |
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