CN106486317A - A kind of tri-station isolating switch - Google Patents
A kind of tri-station isolating switch Download PDFInfo
- Publication number
- CN106486317A CN106486317A CN201610997420.0A CN201610997420A CN106486317A CN 106486317 A CN106486317 A CN 106486317A CN 201610997420 A CN201610997420 A CN 201610997420A CN 106486317 A CN106486317 A CN 106486317A
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- cylinder
- static contact
- contact seat
- cavity
- shielding
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- 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
- H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
-
- 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
- H01H33/46—Interlocking mechanisms
- H01H33/52—Interlocking mechanisms for interlocking two or more 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
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
Abstract
The invention discloses a kind of tri-station isolating switch, this switch includes output cylinder, first insulating cylinder and the second insulating cylinder, ground insulation cylinder, when conducting rod is in the first cavity of the first insulating cylinder, turn on the first static contact seat and the second static contact seat makes switch close a floodgate, when conducting rod is located in the second cavity of the second insulating cylinder, turn on the second static contact seat and the 3rd static contact seat makes to switch separating brake, when conducting rod is located in the 3rd cavity of ground insulation cylinder, turn on the 3rd static contact seat and ground contact seat, so that switch ground connection, above-mentioned disconnecting switch is during the combined floodgate realizing major loop and ground connection, only take up longitudinal space, structure is simple, decrease the volume of global switch.
Description
Technical field
The present invention relates to electric switch equipment technical field, particularly to a kind of tri-station isolating switch.
Background technology
Three-station is usually used in fully closed combined electric unit (GIS) or compound electric apparatus (PASS), be not one individually
Product, be usually used in XGN ring main unit.So-called three stations refer to three operating positions：
1) closing position that disconnecting switch main fracture is connected；
2) the separate isolated location of main fracture；
3) earthing position of ground side.
Three-station is exactly the function of incorporating disconnecting switch and earthed switch in fact, and has been come by a knife
Become, thus can realize mechanical latching, prevent that major loop is powered to close ground knife, because knife can only be a position, and not
As traditional disconnecting switch, operator is operator, and ground knife is ground knife, because obscuring or cannot may link between therefore two knives
Reveal maloperation.And tri-station isolating switch is a knife, the operating position of a knife is at a time unique, no
It is closing position in main switch it is simply that in isolated location or earthing position, decreasing the probability that maloperation occurs.
At present, widely used 35kv electric pressure ring main unit on market, disconnecting switch mostly is three stations of SF6 inflated type
Disconnecting switch.The disconnecting switch of three stations prevents the powered splice grafting of major loop relative to two position switch it is achieved that mechanical latching
Ground.Traditional solid insulation isolating switch includes isolation knife, static contact, is arranged on inside solid insulation device with vacuum tube etc.,
Entrance bushing and outlet casing tube to realize the connection with bus and cable above and below being typically all positioned over.By isolation knife
Division realize major loop combined floodgate and ground connection operation.This kind of switch form greatly occupy cabinet horizontal and vertical on sky
Between.On/off switch process is more fierce, and the life-span on switch and characteristic aspect have certain impact.And epoxy resin materials are relatively
Many, greatly increased cost.When major loop closes a floodgate or is grounded simultaneously, the metal fitting such as isolation knife is connected with vacuum tube moved end
Place or grounding static contact junction, influence each other the Electric Field Distribution leading to not in same seal internal easily appearance two conductors
All, the phenomenon such as local field strength increase, increases the danger coefficient of surrounding.
Content of the invention
Present invention is primarily targeted at providing a kind of tri-station isolating switch, to solve disconnecting switch knot in prior art
Structure is complicated, the excessive problem of volume,
For achieving the above object, the invention provides a kind of tri-station isolating switch, described tri-station isolating switch is circle
Cylindricality, described tri-station isolating switch includes：
Output cylinder, has the first cavity；
First static contact seat, positioned at the top of described first cavity；
First insulating cylinder, the upper end of described first insulating cylinder connects the lower end of described output cylinder, described first insulating cylinder tool
There is the second cavity, described second cavity is connected with described first cavity；
Second static contact seat, is fixed on the middle part of described first insulating cylinder and has the first via, described second static contact seat
Outer wall on be provided with the outside extension extending towards described first insulating cylinder；
Second insulating cylinder, the upper end of described second insulating cylinder connects the lower end of described first insulating cylinder, described second insulation
Cylinder has the 3rd cavity, and described 3rd cavity is connected with described second cavity；
3rd static contact seat, is fixed on the top of described second insulating cylinder and has the second via, described second insulating cylinder
In described 3rd cavity；
Wherein, described 3rd static contact seat is connected by conduction pipe with described second static contact seat；
Ground insulation cylinder, the upper end of described ground insulation cylinder connects the lower end of described second insulating cylinder；
Ground connection static contact seat, is fixed in described ground insulation cylinder；
Conducting rod, is arranged in the cavity space of described tri-station isolating switch and moves up and down in each cavity, described
First via and described second via wear described cavity space for described conducting rod；
Wherein, described conducting rod is mobile in described first cavity turns on described first static contact seat and described second static contact seat
So that described tri-station isolating switch closes a floodgate；Or, described conducting rod turn in described second cavity described second static contact seat and
Described 3rd static contact seat is so that described tri-station isolating switch separating brake；Or, described conducting rod turns on institute in described 3rd cavity
State the 3rd static contact seat and described ground connection static contact seat so that described tri-station isolating switch is grounded.
Preferably, the inner peripheral surface of described first cavity and/or described second cavity and/or described 3rd cavity has anti-
Climb electric structure, described anti-tracking structure is to be formed alternately at described first cavity and/or institute along the axis direction of described output cylinder
State the recess on the second cavity and/or the inner peripheral surface of described 3rd cavity and protuberance.
Preferably, described tri-station isolating switch also includes the first shielding cylinder, secondary shielding cylinder, the 3rd shielding cylinder and the 4th
Shielding cylinder, wherein：
Described first shielding cylinder is embedded in described output cylinder and is located at the lower section of described first static contact seat；
Described secondary shielding cylinder is embedded in described first insulating cylinder and is located above described second static contact seat；
Described 3rd shielding cylinder is embedded in described first insulating cylinder and is located at the lower section of described second static contact seat；
Described 4th shielding cylinder is embedded in described second insulating cylinder and is located at the lower section of described 3rd static contact seat.
Preferably, the upper end of described first shielding cylinder be provided with along described first shielding cylinder be radially orientated described first shielding
The first radial direction shielding part that the middle part of cylinder extends, described first radial direction shielding part is abutted with the lower surface of described first static contact seat,
The lower end of described first shielding cylinder curves inwardly and end forms winding；
The lower end of described secondary shielding cylinder is provided with being radially orientated in described secondary shielding cylinder along described secondary shielding cylinder
The second radial direction shielding part that portion extends, described second radial direction shielding part abutted with the upper surface of described second static contact seat, and described the
The upper end of two shielding cylinders curves inwardly and end forms winding；
The upper end of described 3rd shielding cylinder is provided with being radially orientated in described 3rd shielding cylinder along described 3rd shielding cylinder
The 3rd radial direction shielding part that portion extends, described 3rd radial direction shielding part abutted with the lower surface of described second static contact seat, and described the
The lower end of three shielding cylinders curves inwardly and end forms winding；
The upper end of described 4th shielding cylinder is provided with being radially orientated in described 4th shielding cylinder along described 4th shielding cylinder
The 4th radial direction shielding part that portion extends, described 4th radial direction shielding part abutted with the lower surface of described 3rd static contact seat, and described the
The lower end of four shielding cylinders curves inwardly and end forms winding.
Preferably, described each static contact seat be conductively connected with described conducting rod by way of spring touch finger tactile.
Preferably, described tri-station isolating switch also includes insulated enclosure portion, and described insulated enclosure portion is arranged on described
Between the upper end of the lower end of one insulating cylinder and described second insulating cylinder, and/or, it is exhausted that described insulated enclosure portion is arranged on described second
Between the upper end of the lower end of edge cylinder and described ground insulation cylinder.
Preferably, the outside of described ground connection static contact seat is provided with and contrary with described extension is radially orientated described ground insulation
The outside grounding points extending of cylinder.
Preferably, described output cylinder, described first insulating cylinder, described second insulating cylinder and described ground insulation cylinder are by exhausted
Edge material is constituted.
Preferably, described conducting rod is realized moving up and down operation by described insulation leading screw.
By apply a kind of tri-station isolating switch proposed by the present invention, this switch include output cylinder, the first insulating cylinder and
Second insulating cylinder, ground insulation cylinder, when conducting rod is in the first cavity of the first insulating cylinder, conducting the first static contact seat is quiet with second
Touch base makes switch close a floodgate, and when conducting rod is located in the second cavity of the second insulating cylinder, turns on the second static contact seat and the 3rd stationary contact
Seat makes to switch separating brake, when conducting rod is located in the 3rd cavity, turns on the 3rd static contact seat with ground contact seat so that switch is grounded,
Above-mentioned disconnecting switch, during the combined floodgate realizing major loop and ground connection, only takes up longitudinal space, and structure is simple, decreases whole
The volume of body switch.
Brief description
A kind of structural representation of tri-station isolating switch that Fig. 1 proposes for the embodiment of the present invention；
A kind of perspective view of tri-station isolating switch that Fig. 2 proposes for the embodiment of the present invention.
Marginal data：1st, output cylinder, the 11, first static contact seat, 111, first annular groove, 12, anti-tracking structure, 13,
One shielding cylinder, the 14, first shading ring, 15, bus sheath tube head；2nd, the first insulating cylinder, the 21, second static contact seat, the 211, second annular
Groove, 22, extension, 23, secondary shielding cylinder, the 24, the 3rd shielding cylinder；3rd, the second insulating cylinder, the 31, the 3rd static contact seat, 311,
Three annular grooves, the 32, the 4th shielding cylinder；4th, ground insulation cylinder, 41, ground connection static contact seat, 411, fourth annular groove；5th, conductive
Bar, 51, insulation leading screw；6th, conduction pipe, 61, insulated enclosure portion, the 611, first ring body, the 612, first cylinder.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Mutually combine, to describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in figure 1, the disconnecting switch of the present embodiment includes output cylinder 1, the first insulating cylinder 2, the second insulating cylinder 3 and ground connection
Insulating cylinder 4.Output cylinder 1 has the first cavity, and the first static contact seat 11 is located at the top of the first cavity, the upper end of the first insulating cylinder 2
It is connected with the lower end of output cylinder 1, the first insulation 2 has the second cavity, and this second cavity is connected with the first cavity, the second stationary contact
Seat 21 is fixed on the middle part of the first insulating cylinder 2 and has the first via, the outer wall of the second static contact seat 21 is provided with towards the
The outside of one insulating cylinder 2 has the second static contact seat 21 at the middle part of the first insulating cylinder, and this second static contact seat 21 has the first conducting
Hole, the upper end of the second insulating cylinder 3 is connected with the lower end of the first insulating cylinder 2, and the second insulating cylinder 3 has the 3rd cavity, the 3rd chamber
Body is connected with the second cavity, has the 3rd static contact seat 31 at the top of the 3rd cavity, the 3rd static contact seat 31 pass through conduction pipe 6 with
Second static contact seat 21 connects conducting, and the upper end of ground insulation cylinder 4 connects the lower end of the second insulating cylinder 3, and ground connection static contact seat 41 is fixing
In ground insulation cylinder 4, conducting rod 5 is arranged in the cavity space of tri-station isolating switch and moves up and down in each cavity,
First via is worn for conducting rod 5 with the second via in the cavity space of tri-station isolating switch.Wherein, conducting rod
5 move conducting the first static contact seat 11 and the second static contact seat 21 so that tri-station isolating switch closes a floodgate in the first cavity, or, conductive
Bar 5 turns on the second static contact seat 21 and the 3rd static contact seat 31 in the second cavity so that tri-station isolating switch separating brake；Or, conducting rod
5 turn on the 3rd static contact seat 31 and ground connection static contact seat 41 so that tri-station isolating switch is grounded in the 3rd cavity.
The tri-station isolating switch of application the present embodiment, this tri-station isolating switch includes output cylinder 1, the first insulating cylinder 2,
Second insulating cylinder 3 and ground insulation cylinder 4, conducting rod 5 moves up and down in the cavity space of tri-station isolating switch, conducting rod 5
Turn on the first static contact 11 and the second static contact 21 makes tri-station isolating switch close a floodgate；Conducting rod 5 turns on the second static contact 21
With the 3rd static contact 31, tri-station isolating switch is closed a floodgate；Due to passing through between the second static contact 21 and the 3rd static contact 31 to lead
Siphunculus 6 connects, therefore conducting rod 5 turns on the 3rd static contact 31 and the 4th static contact 41 makes tri-station isolating switch be grounded.Above-mentioned
Tri-station isolating switch, during on/off switch with ground connection, only takes up longitudinal space, and structure is simple, decreases global switch
Volume.
Preferably, conducting rod is realized moving up and down by the leading screw 51 that insulate, and conducting rod 5 is conducting sleeve, and the one of conducting sleeve
It is fixed with nut, nut is threadeded with insulation leading screw 51, and insulation leading screw 51 is screw rod at end.Insulation leading screw 51 rotates and drives
Nut moves up and down on insulation leading screw 51.The outer surface of conducting sleeve is provided with limited impression, and limited impression is along conducting sleeve
Bearing of trend extend, the inner surface of the first static contact seat 11 is given up friendly limited post, limited post is coordinated with limited impression, so permissible
Limit the rotation of nut and conducting sleeve, the effect that can also guide.
Preferably, tri-station isolating switch also includes the first shading ring 14, and the first shading ring 14 is set in out the upper of cylinder 11
End, the first shading ring 14 can shield the electric field of upper contact point.
Preferably, tri-station isolating switch also includes bus sheath tube head 15, and bus sheath tube head 15 is located at the top of output cylinder 1
Portion, this bus sheath tube head is standard F type bus sheath tube head, can preferably be fixed bus.
Preferably, the inner peripheral surface of the first cavity and/or the second cavity and/or the 3rd cavity has anti-tracking structure 12,
Anti-tracking structure 12 is along the recess on the inner peripheral surface of the first cavity and/or the second cavity and/or the 3rd cavity and protuberance.Also
It is to say, the full skirt that height differs is molded with output cylinder 1 and the first insulating cylinder 2, the inner peripheral surface of the second insulating cylinder 3, increased
The creep age distance of whole device, and then increase along surface resistance, better assure that electrical safety.Round and smooth between recess and protuberance
Transition, is so not likely to produce brief and edge effect, is effectively prevented from electric field and concentrates.
Preferably, tri-station isolating switch also includes the first shielding cylinder 13, secondary shielding cylinder 23, the 3rd shielding cylinder 24 and
Four shielding cylinders 32, the wherein first shielding cylinder 13 is embedded in output cylinder 1 and is located at the lower section of the first static contact seat 11, secondary shielding cylinder
23 are embedded in the first insulating cylinder 2 and are located above the second static contact seat 21, and the 3rd shielding cylinder 24 is embedded in the first insulating cylinder 2
And it is located at the lower section of the second static contact seat 21, the 4th shielding cylinder 32 is embedded in the second insulating cylinder 3 and under the 3rd static contact seat
Side.The electric field being to shield each static contact seat and the conducting sleeve junction generation of conducting rod 5 of having a pain of each shielding cylinder, is not likely to produce point
End and edge effect, prevent inside in the presence of electric field, air breakdown occur.The shielding of additional shielding cylinder achieves dual guarantor
Shield.Each shielding cylinder is the metallic shield net of high-pressure side.
Preferably, the upper end of the first shielding cylinder 13 is provided with being radially orientated in the first shielding cylinder 13 along the first shielding cylinder 13
The first radial direction shielding part that portion extends, the first radial direction shielding part is abutted with the lower surface of the first static contact seat 11, the first shielding cylinder 13
Lower end curve inwardly and end formed winding；The lower end of secondary shielding cylinder 23 is provided with and is radially orientated along secondary shielding cylinder 23
The second radial direction shielding part that the middle part of two shielding cylinders 23 extends, the second radial direction shielding part is supported with the upper surface of the second static contact seat 21
Connect, the upper end of secondary shielding cylinder 23 curves inwardly and end forms winding；The upper end of the 3rd shielding cylinder 24 is provided with along the 3rd shielding
The 3rd radial direction shielding part, the 3rd radial direction shielding part and the second stationary contact that the middle part being radially orientated the 3rd shielding cylinder 24 of cylinder 24 extends
The lower surface of seat 21 abuts, and the lower end of the 3rd shielding cylinder 24 curves inwardly and end forms winding；The upper end of the 4th shielding cylinder 32
It is provided with the 4th radial direction shielding part of the middle part extension being radially orientated the 4th shielding cylinder 32 along the 4th shielding cylinder 32, the 4th radially shields
The lower surface covering portion with the 3rd static contact seat 31 abuts, the lower end of the 4th shielding cylinder 32 curve inwardly and end formed winding so that
Rounding off between the end of each shielding cylinder and each radial direction shielding part.The structure of above-mentioned each shielding cylinder is not likely to produce tip and edge
Effect, realizes duplicate protection.
Preferably, the lower end of the first static contact seat 11 has a conducting groove, the upper end of conducting rod 5 stretch into conducting groove and with lead
Logical groove fit.Conducting groove can facilitate conducting rod 5 to turn on the first static contact seat 11, when conducting rod 5 moves upwards, conducting rod
5 upper end enter in conducting groove and with conducting groove fit, at this moment disconnecting switch close a floodgate, increase the first static contact seat 11 with
Contact area between conducting rod 5, and then increase conducting area.
Preferably, the inwall of conducting groove is provided with first annular groove 111, and tri-station isolating switch also includes the first bullet
Property fingertip, the first elastic fingertip is arranged in first annular groove 111, the first static contact seat 11 in the way of elastic fingertip with conductive
Bar 5 is conductively connected and touches it is ensured that conductivity.
Second static contact seat 21 has the first via wearing for conducting rod 5, and the inwall of the first via is provided with second
Annular groove 211, tri-station isolating switch also includes the second elastic fingertip, and the second elastic fingertip is arranged on the second annular groove
In 211, the second static contact seat 21 is conductively connected with conducting rod 5 in the way of elastic fingertip and touches it is ensured that conductivity.
3rd static contact seat 31 has the second via wearing for conducting rod 5, and the inwall of the second via is provided with the 3rd
Annular groove 311, tri-station isolating switch also includes the 3rd elastic fingertip, and the 3rd elastic fingertip is arranged on the 3rd annular groove
In 311, the 3rd static contact seat 31 is conductively connected with conducting rod 5 in the way of elastic fingertip and touches it is ensured that conductivity.
Ground connection static contact seat 41 has the 3rd via wearing for conducting rod 5, and the inwall of the 3rd via is provided with the 4th
Annular groove 411, tri-station isolating switch also includes the 4th elastic fingertip, and the 4th elastic fingertip is arranged on fourth annular groove
In 411, ground connection static contact seat 41 is conductively connected with conducting rod 5 in the way of elastic fingertip and touches it is ensured that conductivity.
Preferably, tri-station isolating switch also includes insulated enclosure portion 61, and insulated enclosure portion 61 is arranged on the first insulating cylinder 2
Lower end and the upper end of the second insulating cylinder 3 between, and/or, insulated enclosure portion 61 is arranged on lower end and the ground connection of the second insulating cylinder 3
Between the upper end of insulating cylinder 4, and/or, insulated enclosure portion 61 be arranged on the lower end of output cylinder 1 and the first insulating cylinder upper end it
Between it is achieved that insulated enclosure.
In order to be better achieved output cylinder and the first insulating cylinder, the first insulating cylinder and the second insulating cylinder, the second insulating cylinder with
Insulated enclosure between ground insulation cylinder is it is preferable that between the upper end of the lower end of insulating cylinder 2 and the second insulating cylinder 3
Insulated enclosure portion 61 illustrates, and insulated enclosure portion 61 includes the first ring body 611 being connected and the first cylinder 612, the first ring
Body 611 is located between lower surface and the upper surface of the second insulating cylinder 3 of the first insulating cylinder 2, and the upper surface of the second insulating cylinder 3 sets
Have and stretch into deeply leading in the second cavity, the first cylinder 612 is located at the inwall of the first insulating cylinder 1 and stretches between cylinder.Above-mentioned exhausted
The structure of edge sealing 61 is simple, easy to use, with low cost.
Preferably, the outer wall of ground connection static contact seat 41 is provided with and prolongs along the outside being radially orientated insulating cylinder 4 of ground insulation cylinder 4
The grounding points 42 stretched, this is radially orientated typically in opposite direction with extension 22, and grounding points 42 are realized three stations and isolated
The ground connection of switch, being radially orientated of specific grounding points 42 can be configured according to actual experience, does not interfere with this
The protection domain of application.
As shown in Fig. 2 output cylinder 1, the first insulating cylinder 2, the second insulating cylinder 3 and ground insulation cylinder 4 are by the way of injection
Process, the such as first shielding cylinder and the first static contact seat are all moulded in output cylinder 1, secondary shielding cylinder and the 3rd shielding cylinder,
Second static contact seat is all moulded in the first insulating cylinder.
Tri-station isolating switch has closing position, open position and earthing position, when disconnecting switch is in closing position,
The first end of conducting rod 5 and the conducting groove fit of the first static contact seat 11, conducting rod 5 turns on the first static contact seat 11 and the second stationary contact
Seat 21, the second static contact seat 21 is for connection to conducting rod 5 and external power source.When tri-station isolating switch is in open position,
Conducting rod 5 moves down, and the first end of conducting rod 5 separates with the conducting groove of the first static contact seat 11, with the second static contact seat 21
It is connected and is not connected with ground connection static contact seat 41, conducting rod turns on the second static contact seat 21 and the 3rd static contact seat 31.Three stations are kept apart
When pass is in earthing position, conducting rod turns on the 3rd static contact seat 31 and ground connection static contact seat, because the second static contact seat 21 is quiet with the 3rd
There is conduction pipe 6 to be connected between touch base 31, so conducting rod conducting the second static contact seat 21 and ground connection static contact seat 41, so that switch is grounded.
In specific application scenarios, all carry out spray zinc on the surface of tri-station isolating switch and processed it is achieved that switching
The effect of outer surface zero potential, i.e. external ground.
In sum, the Direct Action Type solid isolating switch of the present embodiment is by output cylinder 1, the first insulating cylinder 2, the second insulating cylinder
3 and ground insulation cylinder 4 four part composition, the inside of output cylinder 1, the first insulating cylinder 2 and the second insulating cylinder 3 is provided with full skirt and divides
Cloth, can meet electrical equipment required distance, and in output cylinder, copper piece the first static contact seat 11 connects conducting rod 5 in external bus and cylinder
(i.e. isolation knife), the effect of anti-tracking structure 12 is the electric field that shielding the first static contact seat 11 is produced with conducting rod 5 junction, in case
The excessive stored charge of electric field excessively produces the electrical damage phenomenon such as electric discharge.Output cylinder 1, first is realized by silicone rubber seal portion exhausted
Sealing between edge cylinder 2 and the second insulating cylinder 3 and insulation.Second static contact seat 21 be for connection to conducting rod 5 and chopper or
Other set shoe (depending on different cabinet types), each shielding cylinder is used to shield the electric field of junction；First insulating cylinder 2 and
Two insulating cylinders 3 realize insulated enclosure by silicone rubber seal set 15；Second static contact seat 21 and the 3rd static contact seat 31 are by copper
Conduction pipe 6 carries out turning on connection.Ground connection static contact seat 41 is grounded operation；Conducting rod 5 passes through insulation leading screw 51 and realizes up and down
Division action.Wherein static contact seat 11,21,31,41 be all be conductively connected with conducting rod in the way of spring touch finger tactile.
Conducting rod 5 in three positions of operating process, when conducting rod 5 is connected with the first static contact seat 11 and the second static contact seat 21
It is isolation closing position；When conducting rod 5 is connected with the second static contact seat 21 and the 3rd static contact seat 31 Ji Wei isolation open position；When
Conducting rod 5 is connected Ji Wei isolation earthing position with the 3rd static contact seat 31 and ground connection static contact seat 41.The Direct Action Type solid of the present embodiment
Disconnecting switch is a kind of direct-acting three-working-position isolation of 35kv electric pressure, specifically a kind of pole three station
Direct-operated isolating switch.
It can be seen that the above embodiments of the present invention achieve following technique effect from the description above：
1st, this solid direct-acting three-working-position isolation be applied in 35kv solid switch it is achieved that totally-enclosed, all insulation,
Non-maintaining.
2nd, whole insulating cylinder is made up of four parts, and processing or injection mo(u)lding are more simply easy, reduce its manufacture difficult
Degree, enhances electrical reliability.
3rd, leading screw Direct Action Type switch reduces the overall volume of switch, and divide-shut brake or ground connection are more stable is easy to operate.
4th, all using cylindrical symmetry, Electric Field Distribution uniformly, is not likely to produce tip and edge to the inserts of switch internal
Effect, the shielding electric field of additional shielding cylinder realizes duplicate protection.
5th, there are inside insulating cylinder multiple cluster parachutes, the electrical structure of multi-shielding net better assures that electrical safety.
6th, the structure of this pin-connected panel is easy to check the defect occurring in manufacture process, is easy to quality inspection personnel work, prevents
The electrical hazard that part defect causes.
Finally illustrate is：Various embodiments above only in order to technical scheme to be described, is not intended to limit；Although
With reference to foregoing embodiments, the present invention is described in detail, it will be understood by those within the art that；It is still
Technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is carried out
Equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from the claims in the present invention and limited
Scope.
Claims (9)
1. a kind of tri-station isolating switch it is characterised in that described tri-station isolating switch is cylinder, isolate by described three stations
Switch includes：
Output cylinder (1), has the first cavity；
First static contact seat (11), positioned at the top of described first cavity；
First insulating cylinder (2), the upper end of described first insulating cylinder (2) connects the lower end of described output cylinder (1), described first insulation
Cylinder (2) has the second cavity, and described second cavity is connected with described first cavity；
Second static contact seat (21), is fixed on the middle part of described first insulating cylinder (2) and has the first via, described second stationary contact
The outside extension (22) extending towards described first insulating cylinder (2) is provided with the outer wall of seat (21)；
Second insulating cylinder (3), the lower end of described first insulating cylinder (2) of upper end connection of described second insulating cylinder (3), described second
Insulating cylinder (3) has the 3rd cavity, and described 3rd cavity is connected with described second cavity；
3rd static contact seat (31), is fixed on the top of described second insulating cylinder (3) and has the second via, described second insulation
Cylinder (3) is located in described 3rd cavity；
Wherein, described 3rd static contact seat (31) is connected by conduction pipe (6) with described second static contact seat (21)；
Ground insulation cylinder (4), the upper end of described ground insulation cylinder (4) connects the lower end of described second insulating cylinder (3)；
Ground connection static contact seat (41), is fixed in described ground insulation cylinder (4)；
Conducting rod (5), is arranged in the cavity space of described tri-station isolating switch and moves up and down in each cavity, and described
One via and described second via wear described cavity space for described conducting rod；
Wherein, described conducting rod (5) is mobile in described first cavity turns on described first static contact seat (11) and described second quiet
Touch base (21) is so that described tri-station isolating switch closes a floodgate；Or, described conducting rod (5) turns on described in described second cavity
Two static contact seats (21) and described 3rd static contact seat (31) are so that described tri-station isolating switch separating brake；Or, described conducting rod (5) exists
Described 3rd static contact seat (31) and described ground connection static contact seat (41) is turned on so that described three stations are kept apart in described 3rd cavity
Close ground connection.
2. tri-station isolating switch as claimed in claim 1 is it is characterised in that described first cavity and/or described second chamber
Anti-tracking structure (12) is had on the inner peripheral surface of body and/or described 3rd cavity, described anti-tracking structure (12) be along described go out
The axis direction of spool (1) is formed alternately at the interior of described first cavity and/or described second cavity and/or described 3rd cavity
Recess on side face and protuberance.
3. tri-station isolating switch as claimed in claim 1 is it is characterised in that described tri-station isolating switch also includes first
Shielding cylinder (13), secondary shielding cylinder (23), the 3rd shielding cylinder (24) and the 4th shielding cylinder (32), wherein：
Described first shielding cylinder (13) is embedded in described output cylinder (1) and is located at the lower section of described first static contact seat (11)；
Described secondary shielding cylinder (23) is embedded in described first insulating cylinder (2) and is located at the upper of described second static contact seat (21)
Side；
Described 3rd shielding cylinder (24) is embedded in described first insulating cylinder (2) and is located under described second static contact seat (21)
Side；
Described 4th shielding cylinder (32) is embedded in described second insulating cylinder (3) and is located under described 3rd static contact seat (31)
Side.
4. tri-station isolating switch as claimed in claim 3 it is characterised in that
The upper end of described first shielding cylinder (13) is provided with and is radially orientated described first shielding cylinder along described first shielding cylinder (13)
(13) lower surface of the first radial direction shielding part that middle part extends, described first radial direction shielding part and described first static contact seat (11)
Abut, the lower end of described first shielding cylinder (13) curves inwardly and end forms winding；
The lower end of described secondary shielding cylinder (23) is provided with and is radially orientated described secondary shielding cylinder along described secondary shielding cylinder (23)
(23) upper surface of the second radial direction shielding part that middle part extends, described second radial direction shielding part and described second static contact seat (21)
Abut, the upper end of described secondary shielding cylinder (23) curves inwardly and end forms winding；
The upper end of described 3rd shielding cylinder (24) is provided with and is radially orientated described 3rd shielding cylinder along described 3rd shielding cylinder (24)
(24) lower surface of the 3rd radial direction shielding part that middle part extends, described 3rd radial direction shielding part and described second static contact seat (21)
Abut, the lower end of described 3rd shielding cylinder (24) curves inwardly and end forms winding；
The upper end of described 4th shielding cylinder (32) is provided with and is radially orientated described 4th shielding cylinder along described 4th shielding cylinder (32)
(32) lower surface of the 4th radial direction shielding part that middle part extends, described 4th radial direction shielding part and described 3rd static contact seat (31)
Abut, the lower end of described 4th shielding cylinder (32) curves inwardly and end forms winding.
5. tri-station isolating switch as claimed in claim 1 is it is characterised in that the side by spring touch finger for the described each static contact seat
Formula and described conducting rod (5) are conductively connected tactile.
6. tri-station isolating switch as claimed in claim 1 is it is characterised in that described tri-station isolating switch also includes insulating
Sealing (61), described insulated enclosure portion (61) is arranged on the lower end of described first insulating cylinder (2) and described second insulating cylinder (3)
Upper end between, and/or, described insulated enclosure portion (61) is arranged on the lower end of described second insulating cylinder (3) with described ground connection absolutely
Between the upper end of edge cylinder (4).
7. tri-station isolating switch as claimed in claim 1 is it is characterised in that the outside of described ground connection static contact seat (41) is arranged
There are the outside grounding points (42) that extend that are radially orientated described ground insulation cylinder (4) contrary with described extension (22).
8. tri-station isolating switch as claimed in claim 1 is it is characterised in that described output cylinder (1), described first insulating cylinder
(2), described second insulating cylinder (3) and described ground insulation cylinder (4) are constituted by insulant.
9. tri-station isolating switch as claimed in claim 1 is it is characterised in that described conducting rod (5) is by described insulation leading screw
(51) realize moving up and down operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997420.0A CN106486317B (en) | 2016-11-11 | 2016-11-11 | Three-station isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997420.0A CN106486317B (en) | 2016-11-11 | 2016-11-11 | Three-station isolating switch |
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| Publication Number | Publication Date |
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| CN106486317A true CN106486317A (en) | 2017-03-08 |
| CN106486317B CN106486317B (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610997420.0A Active CN106486317B (en) | 2016-11-11 | 2016-11-11 | Three-station isolating switch |
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| Country | Link |
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| CN (1) | CN106486317B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133860A (en) * | 2017-11-08 | 2018-06-08 | 北京双杰电气股份有限公司 | A kind of locomotive seal |
| CN108461321A (en) * | 2018-03-27 | 2018-08-28 | 国网山东省电力公司郓城县供电公司 | A kind of dual power supply switching protection |
| CN109980374A (en) * | 2017-12-28 | 2019-07-05 | 深圳市瑞能实业股份有限公司 | Electric connector |
| CN111146695A (en) * | 2019-11-29 | 2020-05-12 | 河南平高通用电气有限公司 | Combined electrical apparatus with port connector |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124095A (en) * | 2014-08-12 | 2014-10-29 | 深圳市森源电力技术有限公司 | Straight-moving type three-station isolation switch |
| CN105590778A (en) * | 2015-12-18 | 2016-05-18 | 北京双杰电气股份有限公司 | Isolating switch |
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2016
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124095A (en) * | 2014-08-12 | 2014-10-29 | 深圳市森源电力技术有限公司 | Straight-moving type three-station isolation switch |
| CN105590778A (en) * | 2015-12-18 | 2016-05-18 | 北京双杰电气股份有限公司 | Isolating switch |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133860A (en) * | 2017-11-08 | 2018-06-08 | 北京双杰电气股份有限公司 | A kind of locomotive seal |
| CN109980374A (en) * | 2017-12-28 | 2019-07-05 | 深圳市瑞能实业股份有限公司 | Electric connector |
| CN108461321A (en) * | 2018-03-27 | 2018-08-28 | 国网山东省电力公司郓城县供电公司 | A kind of dual power supply switching protection |
| CN108461321B (en) * | 2018-03-27 | 2020-10-02 | 国网山东省电力公司郓城县供电公司 | Dual-power switching protection device |
| CN111146695A (en) * | 2019-11-29 | 2020-05-12 | 河南平高通用电气有限公司 | Combined electrical apparatus with port connector |
| 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 |
| CN115863080B (en) * | 2023-02-24 | 2023-05-09 | 厦门顾德益电气股份有限公司 | Solid switchgear with visual state |
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| Publication number | Publication date |
|---|---|
| CN106486317B (en) | 2020-09-11 |
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