CN105869942A - Three-position isolation switch for switch cabinet - Google Patents
Three-position isolation switch for switch cabinet Download PDFInfo
- Publication number
- CN105869942A CN105869942A CN201610205834.5A CN201610205834A CN105869942A CN 105869942 A CN105869942 A CN 105869942A CN 201610205834 A CN201610205834 A CN 201610205834A CN 105869942 A CN105869942 A CN 105869942A
- Authority
- CN
- China
- Prior art keywords
- contact
- fingertip
- static contact
- tri
- moving contact
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
Abstract
The invention provides a three-position isolation switch for a switch cabinet. The three-position isolation switch for the switch cabinet comprises a shell, a fixed contact, a grounding fixed contact and a moving contact, wherein the fixed contact and the grounding fixed contact are arranged in the shell; the moving contact is arranged on a crankshaft; the crankshaft is supported on the shell; the crankshaft rotates, so that one end of the moving contact is always in contact connection with a conductive support contact arranged on the shell and the other end is in contact connection with the fixed contact or in contact connection with the grounding fixed contact or not in contact connection with the fixed contact and the grounding fixed contact; and the three-position isolation switch is characterized in that the moving contact is a multi-finger moving contact. The three-position isolation switch provided by the invention is relatively high in conductive capability; the calorific values of the moving contact and the fixed contact of the isolation switch are small; and the breaking and closing force is also small.
Description
Technical field
The present invention relates to the tri-station isolating switch of a kind of power industry switch cubicle.
Background technology
Tri-station isolating switch is the Important Components of switchgear, is widely used in the switchgear of various electric pressure, and its Main Function is:
1., for insulating power supply, high pressure repair apparatus is disconnected with charging equipment so that it is have obvious cut-off point, to ensure the safety of staff and equipment.
2. disconnecting switch coordinates with chopper, by system operation mode need carry out grid switching operation, to change system operation survey；First disconnecting switch is gone to during power transmission closing position, then breaker closing；Elder generation's breaker open operation during power-off, then disconnecting switch goes to sub-gate position.
3. in order to be switched on or switched off small area analysis circuit, disconnecting switch does not has arc-control device, therefore can not be used for cutting off load current or short circuit current.
4. ground connection effect, power circuit and power equipment are before repair and maintenance, in addition to deenergization and insulating power supply, also will be three-phase shortcircuit ground connection, its effect one be discharge residual charge on power circuit and power equipment over the ground, two be to make power circuit and power equipment keep zero potential, to prevent just in case switching on power cause personal safety accident and device damage accident.
5. holding current-carrying effect, three-station is required to carry rated operational current, Rated peak withstand current, specified KA Rms as device for switching；The destructive power of short-circuit fault of power system is very strong, and especially tri-station isolating switch is when closing position and earthing position, needs to carry the effect of specified KA Rms and Rated peak withstand current at any time；
Tri-station isolating switch realizes the connection of a circuit or ground connection is to be realized by the cooperation of dynamic and static contact, tri-station isolating switch is that contact the most passively separates and provides enough guarantees at the contact pressure that on-position or earthing position contact have itself, touch spring keeps certain pressure, contact can be reduced clash into and produce vibrations, increase through-current capability, it is to avoid contact generation melting welding.In actual motion, the moving contact of existing tri-station isolating switch is the most all man-to-man contact with the combination of static contact, owing to the mismatch error of dynamic and static contact often produces some problems, as: due to design size, machining accuracy, abrasion etc., cause the real contact area between dynamic and static contact less, contact resistance is relatively big, and during operation, temperature rise is higher；For reducing dynamic and static contact resistance, generally provide bigger dynamic and static contact power with stage clip, cause divide-shut brake power big, the more serious and more difficult operation of dynamic and static contact abrasion.
Common disconnecting switch dynamic and static contacts mates schematic diagram is as shown in Figure 1.
Summary of the invention
The technical problem to be solved is exactly: provide a kind of conductive capability higher, and not only disconnecting switch dynamic and static contact caloric value is little, the tri-station isolating switch that splitting or integrating lock power is the least.
Solving above-mentioned technical problem, the present invention is achieved through the following technical solutions:
A kind of switch cubicle tri-station isolating switch, including housing, and be located in housing static contact, grounding static contact, also it is located at the moving contact on bent axle, described crankshaft support is on housing, and one end that crank rotation makes moving contact contacts connection, the other end all the time or contacts connection with static contact or contact connection with grounding static contact or the most do not contact connection with static contact and grounding static contact with the conductive supporting contact being located on housing；It is characterized in that: described moving contact is many finger-contact types moving contact, its composition structure includes:
One aluminum cover, in square tube type, from the centre of two opposing pipe wall at two ends, has long v notch v to the centre of square tube, and aluminum cover is symmetrical before and after up and down；
Two multiple pressure fingerboard springs, for parallelogram plate, a pair opposite side inwardly have multiple long v notch v, form paired long comb teeth-shaped, and comb is end finger；
The fingertip of corresponding described multiple pressure fingerboard spring logarithm, for long rectangular slab, the two ends, side of long opposite side are provided with in the middle of leaf spring limit convex position, opposite side to be provided with and rank projection up and down；
Two fingertip tablettings, for long rectangular slab, at two long opposite side on a plate face, are provided with inclined convex edge symmetrically, have some erection openings or screwed hole in the middle of plate face；
Two described multiple pressure fingerboard springs are mounted on inside the unnotched tube wall in described aluminum cover two ends respectively, described fingertip is separately mounted to described multiple pressure accordingly and refers to plate spring inside, every pair of comb corresponds to the two ends of a fingertip, fingertip is provided with the limit ranking projection up and down towards interior, two described fingertip tablettings have inclined convex along face relatively, it is arranged in the long v notch v in described aluminum cover two ends by erection opening with connector, the inclined convex edge of two fingertip tablettings makes the formation height arrangement of some fingertips misplace up and down, and two offside fingertip open width ground the projection of ranking up and down of described some fingertips is gripped.
It is matched in clearance between the groove of two described fingertip tablettings and insulation bent axle.
Described static contact and grounding static contact are tabular, and its thickness is thicker than and is contained in the fingertip open width of two offsides in aluminum cover.So just fingertip can be produced decrement when contact, it is ensured that contact has pressure.
The both sides that described tabular static contact and grounding static contact sandwich position corresponding to described fingertip are provided with gradient or arc chord angle.
Having the radial direction square through hole corresponding to described aluminum cover profile on described bent axle, two radial holes at square through hole two ends are along being provided with groove, corresponding to the two ends of described two fingertip tablettings.
Being provided with fingertip moving contact more than three groups on described bent axle, spacing each other ensures that the tri-station isolating switch of many fingertips moving contact has the electric clearance of maximum when open position.Refer to that one-piece rotor shaft, to combined floodgate static contact, has the electric clearance of maximum to grounding static contact.Because the transverse profile of fingertip moving contact more than three groups is all without the scope beyond insulation bent axle.
Described combined floodgate static contact and grounding static contact are fixed in housing with installed part by supporting.
Compared with common disconnecting switch moving contact, this disconnecting switch moving contact uses many fingertips to misplace up and down, the version being front and back mounted side by side；Many fingertips are fixed among spacing aluminum cover at two fingertip tablettings under the common effect of multiple pressure fingerboard spring, many shell fragments spring is for providing the contact pressure of dynamic and static contact, the fingertip number of moving contact is equal with the fingertip number of multiple pressure fingerboard spring, and both are relation one to one when mounted, each fingertip is separate unit when splitting or integrating lock, and each fingertip of moving contact is independent of each other with the contact pressure of static contact；The combined floodgate static contact of particular curve, grounding static contact, the moving contact of insulation bent axle and many finger-contact types of crankshaft structure cooperate, it is ensured that each fingertip of the moving contact engagement sequentially and exiting when splitting or integrating lock, ground connection operation.
Two fingertip tablettings ensure that the fixing of dynamic fingertip, and be fixed in the groove of insulation bent axle, ensure the electric clearance that the tri-station isolating switch of many fingertips moving contact is maximum when open position, avoid many fingertips moving contact component in the closing position point discharge to grounding static contact, at open position to combined floodgate static contact and the point discharge of grounding static contact, certain fit clearance is left between the groove of two fingertip tablettings and insulation bent axle, ensure when many fingertips moving contact is installed can transverse shifting, ensure that the engagement force of each dynamic and static contact distributes uniformly on each fingertip simultaneously.
Moving contact uses many fingertips to misplace up and down, the version being front and back mounted side by side, many fingertips are fixed among spacing aluminum cover at two fingertip tablettings under the common effect of multiple pressure fingerboard spring, many shell fragments spring is for providing the contact pressure of dynamic and static contact, the fingertip number of moving contact is equal with the fingertip number of multiple pressure fingerboard spring, and both are relation one to one when mounted, each fingertip is separate unit when splitting or integrating lock, and each fingertip of moving contact is independent of each other with the contact pressure of static contact；The combined floodgate static contact of particular curve, grounding static contact, the moving contact of insulation bent axle and many finger-contact types of crankshaft structure cooperate, it is ensured that each fingertip of the moving contact engagement sequentially and exiting when splitting or integrating lock, ground connection operation.
The invention has the beneficial effects as follows:
1. moving contact uses many fingertips to misplace up and down, and the structure being front and back mounted side by side takes into full account the kelvin effect of electric current, effectively utilizes conductor material, and conductive capability is higher, area of dissipation is big, be prone to heat radiation.
2. every fingertip of moving contact and the fingertip one_to_one corresponding of multiple pressure fingerboard spring, contacting with static contact of every fingertip independence of moving contact, it is independent of each other, affected little by dynamic and static contacts mates size, ensure that the contact area that dynamic and static contact is maximum, reducing contact resistance, its caloric value is less, temperature rise is low.
3. the combined floodgate static contact of particular curve, grounding static contact, the insulation bent axle of crankshaft structure cooperate with the moving contact of many finger-contact types, when making dynamic and static contacts mates, fingertip order engages and exits, efficiently solve the problem that on/off switch power is big and on/off switch power is suddenlyd change, alleviate in disconnecting switch motor process, the on/off switch power sudden change impact to mechanism.
4. liang fingertip tabletting ensure that the fixing of dynamic fingertip, and be fixed in the groove of insulation bent axle, ensure the electric clearance that the tri-station isolating switch of many fingertips moving contact is maximum when open position, avoid many fingertips moving contact component 21 in the closing position point discharge to grounding static contact 18, at open position to combined floodgate static contact 11 and the point discharge of grounding static contact 18, i.e. serve and fixing effect is installed, it is ensured that the safe operation of equipment；Certain fit clearance is left between the groove of two fingertip tablettings and insulation bent axle, ensureing when many fingertips moving contact is installed can transverse shifting, with combined floodgate static contact and the better adaptability coordinated of grounding static contact, ensure that the engagement force of each dynamic and static contact distributes uniformly on each fingertip simultaneously.
Accompanying drawing explanation
The schematic diagram of the dynamic and static contacts mates of disconnecting switch that Fig. 1 a is common；
Fig. 1 b is the left view of Fig. 1 a；
Fig. 2 a is that the tri-station isolating switch combined floodgate of the present invention runs schematic diagram；
Fig. 2 b is Fig. 2 a band cross-sectional schematic；
Fig. 3 a is that the tri-station isolating switch moving contact of the present invention exits one of schematic diagram (closing position) with combined floodgate static contact from closing a floodgate to；
Fig. 3 b is two (separating brake process fingertip sequentially exits) that tri-station isolating switch moving contact and the combined floodgate static contact of the present invention exits schematic diagram from closing a floodgate to；
Fig. 3 c is three (open positions) that tri-station isolating switch moving contact and the combined floodgate static contact of the present invention exits schematic diagram from closing a floodgate to；
Fig. 4 a is tri-station isolating switch moving contact and one of grounding static contact order mesh schematic representation of the present invention；
Fig. 4 b is tri-station isolating switch moving contact and the two of the grounding static contact order mesh schematic representation of the present invention；
Fig. 4 c is tri-station isolating switch moving contact and the three of the grounding static contact order mesh schematic representation of the present invention；
Fig. 5 a is the assembling schematic diagram of the tri-station isolating switch insulation bent axle of the present invention；
Fig. 5 b is the top view of Fig. 5 a；
Fig. 5 c is the sectional view of Fig. 5 a；
Fig. 6 a is the tri-station isolating switch moving contact front view of the present invention；
Fig. 6 b is the left view of the band section view of Fig. 6 a；
Fig. 7 a is the front view of the tri-station isolating switch insulation bent axle of the present invention；
Fig. 7 b is the top view of insulation bent axle；
Fig. 7 c is the schematic perspective view of insulation bent axle；
Fig. 8 a is the tri-station isolating switch multiple pressure fingerboard spring schematic diagram of the present invention；
Fig. 8 b is the tri-station isolating switch multiple pressure fingerboard spring top view of the present invention；
Fig. 9 a is the tri-station isolating switch fingertip front view of the present invention；
Fig. 9 b is the tri-station isolating switch fingertip left view of the present invention；
Fig. 9 c is the tri-station isolating switch fingertip top view of the present invention；
Figure 10 a is the tri-station isolating switch combined floodgate static contact schematic diagram of the present invention；
Figure 10 b is the right view of Figure 10 a；
Figure 11 a is the tri-station isolating switch grounding static contact schematic diagram of the present invention；
Figure 11 b is the right view of Figure 11 a；
Figure 11 c is the attached view of Figure 11 b；
Figure 12 a is the tri-station isolating switch finger pressure sheet cross-sectional schematic of the present invention；
Figure 12 b is the right view of Figure 12 a；
Figure 12 c is the attached view of Figure 12 a；
Figure 13 is the insulation bent axle schematic perspective view installing moving contact；
Figure 14 is moving contact the Nomenclature Composition and Structure of Complexes schematic perspective view；
Figure 15 is fingertip tabletting schematic perspective view.
In figure, reference represents: 1-installing plate, 2-rotating shaft fixed support, 3-rotating shaft, 4-rotating shaft connecting lever, 5-insulated tension pole, 8-moving contact compression spring, 11-combined floodgate static contact, 12-moving contact, 13-conductive supporting contact, 14-conductive supporting flange, 15-bearing block, 16-support sleeve, 17-operates connecting lever, 18-grounding static contact, 22-insulate bent axle, 31-multiple pressure fingerboard spring, and 32-fixes bolt, 33-aluminum cover, 34-fingertip, 35-fingertip tabletting.
Detailed description of the invention
Fig. 1 a and Fig. 1 b is the disconnecting switch dynamic and static contacts mates schematic diagram of prior art, and moving contact only one of which fingertip, is man-to-man contact with the combination of static contact.
Fig. 2 a, Fig. 2 b are that the tri-station isolating switch combined floodgate of the present invention runs schematic diagram.
The switch cubicle tri-station isolating switch embodiment of the present invention, including housing, and be located in housing static contact, grounding static contact, be also located at the moving contact on insulation bent axle.
Insulation crankshaft support is on housing, and one end that insulation crank rotation makes moving contact contacts connection, the other end all the time or contacts connection with static contact or contact connection with grounding static contact or the most do not contact connection with static contact and grounding static contact with the conductive supporting contact being located on housing.
Wherein moving contact is many finger-contact types moving contact, sees Fig. 6 a Fig. 6 b of accompanying drawing, and the composition structure of many finger-contact types moving contact includes:
One aluminum cover 33, in square tube type, from the centre of two opposing pipe wall at two ends, has long v notch v to the centre of square tube, and aluminum cover is symmetrical before and after up and down；
Two multiple pressure fingerboard springs 31, for parallelogram plate, a pair opposite side inwardly have multiple long v notch v, form paired long comb teeth-shaped, and comb is end finger；
The fingertip 34 of corresponding described multiple pressure fingerboard spring logarithm, for long rectangular slab, the two ends, side of long opposite side are provided with in the middle of leaf spring limit convex position, opposite side to be provided with and rank projection up and down；
(upper and lower fingertip tabletting overall dimensions is the same, opens circular hole for one, opens thread bush for one for two fingertip tablettings 35, bolt is installed use), for long rectangular slab, at two long opposite side on a plate face, it is provided with inclined convex edge symmetrically, in the middle of plate face, has some erection openings；
Two multiple pressure fingerboard springs 31 are mounted on inside the unnotched tube wall in aluminum cover 33 two ends respectively, fingertip 34 is separately mounted to inside multiple pressure fingerboard spring 31 accordingly, every pair of comb corresponds to the two ends of a fingertip 34, fingertip is provided with the limit ranking projection up and down towards interior, two fingertip tablettings 35 have inclined convex along face relatively, it is arranged in the long v notch v in aluminum cover 33 two ends by erection opening with fixing bolt 32, the inclined convex edge of two fingertip tablettings makes the formation height arrangement of some fingertips misplace up and down, and two offside fingertip open width ground the projection of ranking up and down of described some fingertips is gripped.
Make during design between the groove of two fingertip tablettings and insulation bent axle as matched in clearance, so ensure when many fingertips moving contact is installed can transverse shifting, ensure that the engagement force of each dynamic and static contact distributes uniformly on each fingertip simultaneously.
Seeing Figure 10 a and Figure 10 b, and Figure 11 a, Figure 11 b and Figure 11 c, static contact and grounding static contact are tabular, its thickness adapts to be thicker than and is contained in the fingertip open width of two offsides in aluminum cover；Tabular static contact and grounding static contact sandwich the both sides at position corresponding to fingertip and are provided with gradient or arc chord angle, lock static contact and grounding static contact by supporting and installed part is fixed in housing.
Seeing Fig. 7 a, Fig. 7 b and Fig. 7 c, insulation bent axle has the radial direction square through hole corresponding to aluminum cover profile, two radial holes at square through hole two ends are along being provided with groove, corresponding to the two ends of two fingertip tablettings；Being provided with fingertip moving contact more than three groups on bent axle, spacing each other ensures that the tri-station isolating switch of many fingertips moving contact has the electric clearance of maximum when open position.
Two fingertip tablettings ensure that the Heterogeneous Permutation up and down of dynamic fingertip, and be fixed in the groove of insulation bent axle, ensure the electric clearance that the tri-station isolating switch of many fingertips moving contact is maximum when open position, avoid many fingertips moving contact component in the closing position point discharge to grounding static contact, at open position to combined floodgate static contact and the point discharge of grounding static contact, between the groove of two fingertip tablettings and insulation bent axle, leave certain fit clearance.
Fig. 3 a, Fig. 3 b and tri-station isolating switch moving contact that Fig. 3 c is the present invention exit the schematic diagram of three Working pasitions with combined floodgate static contact from closing a floodgate to.
Such as Fig. 3, Fig. 4, also shown in Fig. 5, Fig. 6, many fingertips tri-station isolating switch is made up of the moving contact 12 of many finger-contact types and the insulation bent axle 22 of crankshaft structure, installs including matched combined floodgate static contact 11 and grounding static contact 18 and supporting.
Fingertip 34 is symmetrical to be arranged in aluminum cover 33, its quantity is by depending on size of current, thering is provided contact force during dynamic and static contacts mates on fingertip under the effect jointly of tabletting 35, fingertip lower sheeting 36 and many film pressure plates spring 31 (left and right each a piece), the end finger number of multiple pressure fingerboard spring 31 is identical with the number of fingertip 34.
Ensure during installation that every fingertip has the shell fragment of correspondence to provide elastic force, each fingertip is made to become the unit separately providing dynamic and static contact power, will not have an impact each other, even if there is error or certain abrasion occurs in the fit dimension of the moving contact 12 of combined floodgate static contact 11 and grounding static contact 18 and many finger-contact types, each fingertip all can be with static contact good contact, ensure that the contact area of dynamic and static contact, and contact force is relatively uniform.On fingertip, tabletting 35 ensure that the fixing of fingertip 34, and its part stretched out is fixed and has in the groove of insulation bent axle 22 of crankshaft structure, it is ensured that the electric clearance that the tri-station isolating switch of many fingertips moving contact is maximum when open position, safe and reliable to operation；Certain fit clearance is left, it is ensured that with the coordinating of combined floodgate static contact 11 and grounding static contact 18 when many fingertips moving contact 12 is installed between the groove of the insulation bent axle 22 of fingertip tabletting 35 and crankshaft structure.When combined floodgate, the operation of separating brake ground connection, combined floodgate static contact 11 and the grounding static contact 18 with particular curve cooperate with the moving contact 12 with many finger-contact types, ensure the engagement of fingertip order and exit, efficiently solve the problem that on/off switch power is big and on/off switch power is suddenlyd change, alleviate in disconnecting switch motor process, the on/off switch power sudden change impact to mechanism.And common dynamic and static contacts mates, the most dynamic and static contact, contact force remains maximum, and during splitting or integrating lock, operating physical force is big, and the impact to mechanism is big.
The design that insulation bent axle 22 is special crankshaft structure of crankshaft structure, its generally insulant compression molding, it is ensured that the concordance that the moving contact 12 of the many finger-contact types of tri-station isolating switch is installed, it is ensured that the synchronism of splitting or integrating lock；Groove on the insulation bent axle 22 of crankshaft structure ensure that the convenience of installation.
Many film pressure plates spring 31 is symmetrical to be made, and sets and have and fingertip 34 end finger one to one, it is ensured that each fingertip all can be with static contact good contact.
Fingertip 34 is single chip architecture, and dislocation is mounted side by side；Each fingertip size dimension of single chip architecture is identical is prone to processing, and the fingertip conductive capability that dislocation is mounted side by side is strong, and area of dissipation is big, and temperature rise is low.
Combined floodgate static contact 11 and grounding static contact 18 have carried out design and the rounding design of special shape curve, each pair of fingertip order engagement of moving contact when the curve of special shape ensures to close a floodgate, rounding ensures the rounding off during engagement of sound, contact, reduces frictional resistance.Avoid the many finger-contact types moving contact 12 point discharge when open position, it is ensured that the safe operation of equipment.
As shown in Figure 12 and Figure 13, the rounding design of fingertip tabletting 35 avoids the moving contact 12 of many finger-contact types in the closing position point discharge to grounding static contact 18, at open position to combined floodgate static contact 11 and the point discharge of grounding static contact 18, i.e. serve and fixing effect is installed, it is ensured that the safe operation of equipment.
Claims (5)
1. a switch cubicle tri-station isolating switch, including housing, and be located in housing static contact, ground connection
Static contact, is also located at the moving contact on bent axle, and described crankshaft support is on housing, and crank rotation makes to touch
One end of head contacts connection, the other end all the time with the conductive supporting contact being located on housing or contacts with static contact
Connect or contact connection with grounding static contact or the most do not contact connection with static contact and grounding static contact；
It is characterized in that: described static contact and grounding static contact are tabular, described moving contact is many finger-contact types moving contact,
Its composition structure includes:
One aluminum cover, in square tube type, has elongated lacking from the centre of two opposing pipe wall at two ends, to the centre of square tube
Mouthful；
Two multiple pressure fingerboard springs, for parallelogram plate, a pair opposite side inwardly have multiple long v notch v, are formed
Paired long comb teeth-shaped, comb is end finger；
The fingertip of corresponding described multiple pressure fingerboard spring end finger logarithm, for long rectangular slab, the two ends, side of long opposite side are provided with
It is provided with in the middle of leaf spring limit convex position, opposite side and ranks projection up and down；
Two fingertip tablettings, for long rectangular slab, at two long opposite side on a plate face, are provided with inclined convex edge symmetrically,
Some erection openings or screwed hole is had in the middle of plate face；
Two described multiple pressure fingerboard springs are mounted on inside the unnotched tube wall in described aluminum cover two ends respectively, and described touches
Refer to that being separately mounted to described multiple pressure accordingly refers to that plate spring inside, every pair of comb correspond to the two ends of a fingertip, fingertip
Be provided with the limit ranking projection up and down towards interior, two described fingertip tablettings have inclined convex along face relatively, with even
Fitting is arranged in the long v notch v in described aluminum cover two ends by erection opening, if the inclined convex of two fingertip tablettings is along making
Dry fingertip forms fingertip open width upper by described some fingertips of ground of height arrangement dislocation and two offsides up and down
Lower ranking projection grips.
Switch cubicle tri-station isolating switch the most according to claim 1, is characterized in that: on described bent axle
Having the radial direction square through hole corresponding to described aluminum cover profile, the two radial holes edges at square through hole two ends are provided with groove,
Groove is corresponding to the two ends of described two fingertip tablettings.
Switch cubicle tri-station isolating switch the most according to claim 2, is characterized in that: two described fingertips
It is matched in clearance between the groove of tabletting and insulation bent axle.
Switch cubicle tri-station isolating switch the most according to claim 3, is characterized in that: described tabular is quiet
The both sides that contact and grounding static contact sandwich position corresponding to described fingertip are provided with gradient or arc chord angle, described conjunction
Lock static contact and grounding static contact are fixed in housing with installed part by supporting.
Switch cubicle tri-station isolating switch the most according to claim 4, is characterized in that: on described bent axle
Being provided with fingertip moving contact more than three groups, spacing each other ensures the tri-station isolating switch of many fingertips moving contact
There is the electric clearance of maximum when open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205834.5A CN105869942A (en) | 2016-04-01 | 2016-04-01 | Three-position isolation switch for switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205834.5A CN105869942A (en) | 2016-04-01 | 2016-04-01 | Three-position isolation switch for switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105869942A true CN105869942A (en) | 2016-08-17 |
Family
ID=56627038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610205834.5A Pending CN105869942A (en) | 2016-04-01 | 2016-04-01 | Three-position isolation switch for switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105869942A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359077A (en) * | 2017-09-11 | 2017-11-17 | 国电博纳（北京）电力设备有限公司 | A kind of direct-acting three-working-position isolation equipment |
| CN112242266A (en) * | 2019-07-19 | 2021-01-19 | 武汉倍诺德开关有限公司 | Contact system of three-station isolating switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6313416B1 (en) * | 1999-12-30 | 2001-11-06 | Square D Company | Current carrying switch structure |
| CN102709101A (en) * | 2012-05-31 | 2012-10-03 | 佳宁电气有限公司 | Contact structure of isolating switch |
| CN104810186A (en) * | 2014-11-18 | 2015-07-29 | 平高集团有限公司 | Moving contact unit and three-position switch with moving contact unit |
| CN205645655U (en) * | 2016-04-01 | 2016-10-12 | 广州白云电器设备股份有限公司 | Cubical switchboard three -station isolation switch |
-
2016
- 2016-04-01 CN CN201610205834.5A patent/CN105869942A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6313416B1 (en) * | 1999-12-30 | 2001-11-06 | Square D Company | Current carrying switch structure |
| CN102709101A (en) * | 2012-05-31 | 2012-10-03 | 佳宁电气有限公司 | Contact structure of isolating switch |
| CN104810186A (en) * | 2014-11-18 | 2015-07-29 | 平高集团有限公司 | Moving contact unit and three-position switch with moving contact unit |
| CN205645655U (en) * | 2016-04-01 | 2016-10-12 | 广州白云电器设备股份有限公司 | Cubical switchboard three -station isolation switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359077A (en) * | 2017-09-11 | 2017-11-17 | 国电博纳（北京）电力设备有限公司 | A kind of direct-acting three-working-position isolation equipment |
| CN112242266A (en) * | 2019-07-19 | 2021-01-19 | 武汉倍诺德开关有限公司 | Contact system of three-station isolating switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018090548A1 (en) | Double-break isolated switch module | |
| WO2018090549A1 (en) | Ultra-high-voltage power line disconnector | |
| CN105529663B (en) | Busbar assembly and the Cubicle Gas-Insulated Switchgear using the busbar assembly | |
| CN103745896A (en) | Moving contact system of circuit breaker | |
| CN203491176U (en) | Gas-insulated and metal-enclosed switch equipment | |
| CA2969696A1 (en) | Low profile fusible disconnect switch device | |
| CN105869942A (en) | Three-position isolation switch for switch cabinet | |
| CN204966367U (en) | Novel indoor high voltage isolator of GN10 | |
| AU2018310524B2 (en) | Circuit breaker for gas insulated switchgear | |
| CN205645655U (en) | Cubical switchboard three -station isolation switch | |
| CN210296265U (en) | Novel fixed circuit breaker | |
| CN106921122B (en) | Environment-friendly gas all-insulation all-sealed miniaturized switch cabinet | |
| WO2021104525A1 (en) | Circuit breaker and gas-insulated switchgear using the circuit breaker | |
| CN210577028U (en) | Isolating switch group for double-bus cabinet | |
| KR101239741B1 (en) | Knife-blade of contacting apparatus for apartment house | |
| CN210577360U (en) | Metal armored switch equipment with maintenance uninterrupted power supply function | |
| CN103021755A (en) | Molded case circuit breaker with short flashover device and high arc extinction effect | |
| CN108831794B (en) | Solid-sealed pole with lightning protection function for outdoor pole vacuum circuit breaker | |
| CN1037622A (en) | A kind of unit in medium-pressure or high pressure metal armouring power station and power station that constitutes by these unit of being used for | |
| CN206628399U (en) | A kind of strong high voltage isolator moving contact of contact performance | |
| CN208174123U (en) | A kind of drawout breaker | |
| CN204680982U (en) | A kind of integrated-type intelligent isolation circuit breakers | |
| CN220895396U (en) | Isolation switch | |
| CN210073700U (en) | Indoor high-voltage alternating-current isolating switch | |
| CN107622928B (en) | High-voltage direct-current circuit breaker capable of improving arc extinguishing capacity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |
|
| WD01 | Invention patent application deemed withdrawn after publication |