CN106548885B - A kind of disconnecting switch for nitrogen switchgear and earthing switch instruction device - Google Patents
A kind of disconnecting switch for nitrogen switchgear and earthing switch instruction device Download PDFInfo
- Publication number
- CN106548885B CN106548885B CN201610943466.4A CN201610943466A CN106548885B CN 106548885 B CN106548885 B CN 106548885B CN 201610943466 A CN201610943466 A CN 201610943466A CN 106548885 B CN106548885 B CN 106548885B
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- Prior art keywords
- switch
- indicating piece
- vacuum interrupter
- ground connection
- disconnecting switch
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
- H01H2009/267—Interlocking, locking, or latching mechanisms for interlocking two or more switches with interlocking of two out of three switches, e.g. two switches each connecting a power supply to a busbar and a bus coupling switch interlocked in such a way that the power supplies are never connected in parallel
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Patch Boards (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A kind of disconnecting switch for nitrogen switchgear and earthing switch instruction device, instruction device include disconnecting switch indicating piece (14), isolated operation hole (2), isolation connecting lever (1), spacer link (3), earthing switch indicating piece (10), ground connection handle hole (5), earthed crank arm (6), ground connection connecting rod (4), vacuum interrupter output toggle arm (8), vacuum interrupter slide plate (9).Whole building blocks are all placed on rear side of panel (20), setting isolation indicating piece observation window (21), ground connection indicating piece observation window (22) on panel (20).Instruction system is simply clear when the present invention realizes the secondary use of a vacuum interrupter, and not will cause the confusion in visual effect, while improving the acquisition rate of operation panel information, and panel design is also more simple and clear.
Description
Technical field
The invention belongs to technical field of electric equipment, especially belong to electric switch manufacturing field, and in particular to a kind of electrical
The instruction device of switch.
Background technique
Nitrogen switchgear is the gas-filling cabinet that a kind of shell is filled with lower pressure (0.1~0.5mpa) nitrogen.Due to SF6 gas
Body is decided to be restricted greenhouse gases, thus controls its dosage and discharge as far as possible in High-voltage Switchgear Industry.So being badly in need of one
The non-SF6 gas inflated cabinet of kind.Nitrogen is purer for dry air, and punch-through in gas-filling cabinet will not occur.Together
When nitrogen it is environmentally protective, but nitrogen has excellent arc extinguishing and insulation performance unlike SF6 gas, so pacifying in nitrogen cabinet
Vacuum interrupter, disconnecting switch and earthing switch are filled.Disconnecting switch and earthing switch share a vacuum interrupter.Now provide
A kind of disconnecting switch for nitrogen cabinet and earthing switch instruction device, indicate when realizing the secondary use of a vacuum interrupter
System is simply clear, and not will cause the confusion in visual effect, while improving the acquisition rate of operation panel information, panel design
Also more simple and clear.There are two types of modes for the prior art, and a kind of is not the secondary use for a vacuum interrupter, mechanism
In for disconnecting switch configure a vacuum interrupter, for earthing switch configure a vacuum interrupter, each operations control
Other to open and close to corresponding vacuum interrupter, disconnecting switch indicating piece contains only the one disconnection instruction of a closure, ground connection at this time
Switch indicating piece contains only the one disconnection instruction of a closure, but two vacuum interrupters, which are arranged, can increase the body of entire switchgear
Product size, reduces the utilization rate of entire cabinet body；It is another then and be not provided with vacuum interrupter, directly folding disconnecting switch and ground connection
Switch, can do the folding piece of big disconnecting switch and earthing switch at this time, avoid generating spark in direct interrupting process, be isolated at this time
Switch indicating piece contains only the one disconnection instruction of a closure, and earthing switch indicating piece contains only the one disconnection instruction of a closure, right
In such mode, disconnecting switch and earthing switch is excessively heavy and operator operates that there are larger security risks.
Summary of the invention
The present invention in order to solve problem above, now provides a kind of disconnecting switch for nitrogen cabinet and earthing switch instruction fills
It sets, uses technical solution of the present invention, so that indicating that system is simply clear when the secondary use of a vacuum interrupter, and will not
The confusion in visual effect is caused, while improving the acquisition rate of faceplate formation, panel design is also more simple and clear.It is simultaneously face
Plate provides bigger design space.
The present invention specifically uses following technical scheme:
A kind of disconnecting switch for nitrogen switchgear and earthing switch instruction device, including disconnecting switch indicating piece 14,
Connecting lever 1, spacer link 3, earthing switch indicating piece 10, earthed crank arm 6, ground connection connecting rod 4, vacuum interrupter slide plate 9 is isolated；It is special
Sign is:
Connecting lever 1, spacer link 3, disconnecting switch indicating piece 14, vacuum interrupter slide plate 9 is isolated and constitutes a linkage；Ground connection
Connecting lever 6, ground connection connecting rod 4, earthing switch indicating piece 10, vacuum interrupter slide plate 9 constitute a linkage.
Disconnecting switch for nitrogen switchgear with earthing switch instruction device includes disconnecting switch indicating piece 14, is isolated and turns
Arm 1, spacer link 3, earthing switch indicating piece 10, earthed crank arm 6, ground connection connecting rod 4, vacuum interrupter output toggle arm 8, vacuum are gone out
Arc chamber slide plate 9, it is characterised in that:
Spacer link 3 and disconnecting switch indicating piece 14 are respectively positioned on vacuum interrupter slide plate 9, one end of spacer link 3 and
Disconnecting switch indicating piece 14 is connected by isolation indicating piece rotational axis 12, and the isolation indicating piece rotational axis 12 is placed in vacuum
In the arc slotted hole of 9 upper end of arc-chutes slide plate；The other end of spacer link 3 is fixedly connected with isolation connecting lever 1；
The disconnecting switch indicating piece 14 is rotatablely connected by isolation instruction disk rotating shaft 13 and vacuum interrupter slide plate 9；
Ground connection connecting rod 4 and earthing switch indicating piece 10 be respectively positioned on vacuum interrupter slide plate 9, be grounded connecting rod 4 one end and
Earthing switch indicating piece 10 is connected by ground connection indicating piece rotational axis 7, and the ground connection indicating piece rotational axis 7 is being limited to very
In the arc slotted hole of empty 9 lower end of arc-chutes slide plate；The other end of ground connection connecting rod 4 is connected with earthed crank arm 6；
Earthing switch indicating piece 10 is rotatablely connected by ground connection instruction disk rotating shaft 11 and vacuum interrupter slide plate 9；
Vacuum interrupter output toggle arm 8 by inside switch cabinet interlocking mechanism respectively with ground connection main shaft, be isolated main shaft link.
The present invention further comprises following preferred embodiment:
Isolated operation hole 2 is offered on isolation connecting lever 1, isolated operation hole 2 is for matching handle disconnecting switch operation；
Ground connection handle hole 5 is offered on earthed crank arm 6, ground connection handle hole 5 is for matching handle operational grounding switch.
Action pane is opened up respectively at the corresponding isolated operation hole 2 of switch cabinet panel 20, the position for being grounded handle hole 5.
At the position that switch cabinet panel 20 corresponds to disconnecting switch indicating piece 14, earthing switch indicating piece 10, open up respectively
Indicating piece observation window 21 and ground connection indicating piece observation window 22 is isolated.
Disconnecting switch closure mark 15 is equipped on disconnecting switch indicating piece 14, the first disconnecting switch disconnects mark 16, the
Two disconnecting switch disconnect mark 17；
Earthing switch indicating piece 10 is equipped with earthing switch closure mark 19, earthing switch disconnects mark 18.
Keep apart closing conjunction state in the disconnecting switch closure mark 15 instruction switchgear；
First disconnecting switch, which disconnects, keeps apart that shutdown is opened and vacuum interrupter is closed in mark 16 instruction switchgear
State；
Second disconnecting switch, which disconnects, keeps apart that shutdown is opened and vacuum interrupter disconnects in mark 17 instruction switchgear
State；
The earthing switch closure mark 19 and earthing switch disconnect mark 18 and indicate respectively earthing switch open and close
State.
When rotation isolation main shaft in handle insertion isolated operation hole 2 is disconnected disconnecting switch, isolation connecting lever 1 passes through spacer link
3 drive vacuum interrupter slide plates 9 move downward, and make to be isolated indicating piece rotational axis 12 in 9 upper end arc of vacuum interrupter slide plate
Circular motion is done on slotted hole, disconnecting switch indicating piece 14 is rotated around isolation instruction disk rotating shaft 13；
Vacuum interrupter is first disconnected by interlocking mechanism, switchgear mechanism and disconnects disconnecting switch again, and vacuum interrupter output is turned
Arm 8 drives vacuum interrupter slide plate 9 to move downward, since disconnecting switch indicating piece 14, earthing switch indicating piece 10 pass through vacuum
Arc-chutes slide plate 9 is connected, and indicating piece observation window 21 is isolated on panel 20 and shows that second on disconnecting switch indicating piece 14 keeps apart
Shutdown opening of bid will 17, ground connection indicating piece observation window 22 show that the earthing switch on earthing switch indicating piece 10 disconnects mark 18, every
It leaves pass to be in an off state, earthing switch is in an off state, and vacuum interrupter is in an off state.
When handle is inserted into the ground connection rotation isolation main shaft closure disconnecting switch of handle hole 2, isolation connecting lever 1 passes through spacer link
3 drive vacuum interrupter slide plates 9 move upwards, and make to be isolated indicating piece rotational axis 12 in 9 upper end arc of vacuum interrupter slide plate
Circular motion is done on slotted hole, disconnecting switch indicating piece 14 is rotated around isolation instruction disk rotating shaft 13；
Disconnecting switch is first closed by interlocking mechanism, switchgear mechanism and recloses vacuum interrupter, and vacuum interrupter output is turned
Arm 8 drives vacuum interrupter slide plate 9 to move upwards, since disconnecting switch indicating piece 14, earthing switch indicating piece 10 pass through vacuum
Arc-chutes slide plate 9 is connected, and is isolated on the display disconnecting switch indicating piece 14 of indicating piece observation window 21 on panel 20 and keeps apart closing
Mark 15 is closed, ground connection indicating piece observation window 22 shows that the earthing switch on earthing switch indicating piece 10 disconnects mark 18, keeps apart
It closes and is in closed state, earthing switch is in an off state, and vacuum interrupter is in closed state.
When handle is inserted into the ground connection rotation ground connection main shaft closed ground switch of handle hole 5, earthed crank arm 6 passes through ground connection connecting rod
4 drive vacuum interrupter slide plates 9 move upwards, and keep ground connection indicating piece rotational axis 7 long in 9 lower end arc of vacuum interrupter slide plate
Circular motion is done on circular hole, earthing switch indicating piece 10 is rotated around ground connection instruction disk rotating shaft 11；
Vacuum interrupter is reclosed by elder generation, interlocking mechanism, switchgear mechanism closed ground switch, vacuum interrupter output is turned
Arm 8 drives vacuum interrupter slide plate 9 to move upwards, since disconnecting switch indicating piece 14, earthing switch indicating piece 10 pass through vacuum
Arc-chutes slide plate 9 is connected, and indicating piece observation window 21 is isolated on panel 20 and shows that first on disconnecting switch indicating piece 14 keeps apart
Shutdown opening of bid will 16, ground connection indicating piece observation window 22 show that the earthing switch on earthing switch indicating piece 10 is closed mark 19, every
It leaves pass to be in an off state, earthing switch is in closed state, and vacuum interrupter is in closed state.
When handle is inserted into the ground connection rotation ground connection main shaft disconnection earthing switch of handle hole 5, earthed crank arm 6 passes through ground connection connecting rod
4 drive vacuum interrupter slide plates 9 move downward, and keep ground connection indicating piece rotational axis 7 long in 9 lower end arc of vacuum interrupter slide plate
Circular motion is done on circular hole, earthing switch indicating piece 10 is rotated around ground connection instruction disk rotating shaft 11；
Vacuum interrupter is first disconnected by interlocking mechanism, switchgear mechanism and disconnects earthing switch again, and vacuum interrupter output is turned
Arm 8 drives vacuum interrupter slide plate 9 to move downward, since disconnecting switch indicating piece 14, earthing switch indicating piece 10 pass through vacuum
Arc-chutes slide plate 9 is connected, and indicating piece observation window 21 is isolated on panel 20 and shows that first on disconnecting switch indicating piece 14 keeps apart
Shutdown opening of bid will 17, ground connection indicating piece observation window 22 show that the earthing switch on earthing switch indicating piece 10 disconnects mark 18, every
It leaves pass to be in an off state, earthing switch is in an off state, and vacuum interrupter is in an off state.
The invention has the following beneficial technical effects:
Instruction system is simply clear, and does not cause the visual confusion of operator；
Improve the accuracy of panel operation；
Bigger design space is provided for panel design；
Linkage is accurate quick, entire linkage is simplified to two instructions, the acquisition convenient for user to information.
Detailed description of the invention
Fig. 1 is disconnecting switch and earthing switch instruction device overall structure diagram of the present invention for nitrogen switchgear；
Fig. 2 is the structural schematic diagram of vacuum interrupter slide plate 9；
Fig. 3-1 is that disconnecting switch with earthing switch instruction device face by the overall structure under switchgear normal operating condition
Figure；
Fig. 3-2 is disconnecting switch and earthing switch instruction device overall structure backsight under switchgear normal operating condition
Figure,
Fig. 3-3 is disconnecting switch and earthing switch instruction device in switchgear normal operating condition lower panel schematic diagram.
Fig. 4-1 is the entirety that disconnecting switch and earthing switch instruction device break down when disconnecting disconnecting switch in switchgear
Structure front view,
Fig. 4-2 is the entirety that disconnecting switch and earthing switch instruction device break down when disconnecting disconnecting switch in switchgear
Structure rearview,
Fig. 4-3 is the panel that disconnecting switch and earthing switch instruction device break down when disconnecting disconnecting switch in switchgear
Schematic diagram.
Fig. 5-1 is disconnecting switch and overall structure front view of the earthing switch instruction device when switchgear need to overhaul,
5-2 is disconnecting switch and earthing switch instruction device overall structure rearview when switchgear need to overhaul,
5-3 is disconnecting switch and panel schematic diagram of the earthing switch instruction device when switchgear need to overhaul.
Specific embodiment
Technical solution of the present invention is further described in detail with reference to the accompanying drawings of the specification.
The disconnection of disconnecting switch and earthing switch and closure carry out arc extinguishing by vacuum interrupter in switchgear.By opening
Close the interlocking of cabinet internal mechanism, realize connect disconnecting switch or when earthing switch be first closed vacuum interrupter reclose disconnecting switch or
Earthing switch first disconnects disconnecting switch when cutting off disconnecting switch or earthing switch or earthing switch disconnects vacuum interrupter again, and
And realize that disconnecting switch and earthing switch share a vacuum interrupter.
Show as shown in Figure 1 for the overall structure of a kind of disconnecting switch for nitrogen switchgear and earthing switch instruction device
It is intended to, the disconnecting switch disclosed in the present application for nitrogen switchgear and earthing switch instruction device include disconnecting switch indicating piece
14, isolated operation hole 2, isolation connecting lever 1, spacer link 3, earthing switch indicating piece 10, ground connection handle hole 5, earthed crank arm 6, connect
The components such as ground connecting rod 4, vacuum interrupter output toggle arm 8, vacuum interrupter slide plate 9.The wherein such as Fig. 2 institute of vacuum interrupter slide plate 9
Show, is equipped with upper and lower two arc slotted holes, upper and lower two circular holes, a small slotted hole of transverse direction.
Spacer link 3 and disconnecting switch indicating piece 14 are located at the front and back of vacuum interrupter slide plate 9, and isolation connects
One end of bar 3 is connected with disconnecting switch indicating piece 14 by the way that indicating piece rotational axis 12 is isolated, and the isolation indicating piece rotation is dynamic
Axis 12 is placed in 9 upper end arc slotted hole of vacuum interrupter slide plate.The other end of spacer link 3 is fixedly connected with isolation connecting lever 1,
Isolated operation hole 2 is offered in one end of isolation connecting lever 1, isolated operation hole 2 is for matching handle disconnecting switch operation.Referring to attached
Fig. 3-1,4-1,5-1, the disconnecting switch indicating piece 14 are passed through on vacuum interrupter slide plate 9 by isolation instruction disk rotating shaft 13
The upper circular hole opened up is rotatablely connected in vacuum interrupter slide plate 9, sets gradually disconnecting switch closure in disconnecting switch indicating piece 14
Mark 15, the first disconnecting switch disconnect mark 16 and the second disconnecting switch disconnects mark 17.
Ground connection connecting rod 4 and earthing switch indicating piece 10 be located at vacuum interrupter slide plate 9 just, back two sides, ground connection connect
4 one end of bar and earthing switch indicating piece 10 are connected by ground connection indicating piece rotational axis 7, and ground connection indicating piece rotational axis 7 is limiting
It is scheduled in the arc slotted hole of 9 lower end of vacuum interrupter slide plate.The other end of ground connection connecting rod 4 is connected with earthed crank arm 6, is being grounded
The ground connection handle hole 5 for being grounded operation is offered on connecting lever 6.
Referring to attached drawing 3-1,4-1,5-1, earthing switch indicating piece 10 is by passing through 9 lower part circular hole of vacuum interrupter slide plate
Ground connection instruction disk rotating shaft 11 and vacuum interrupter slide plate 9 are rotatablely connected.It is disconnected that earthing switch is set in earthing switch indicating piece 10
Will 18 of opening bid and earthing switch are closed mark 19.
Vacuum interrupter output toggle arm 8 is connected with vacuum interrupter slide plate 9, and closure and the disconnection of vacuum interrupter can pass through
Inside switch cabinet mechanism interlocking both forward and reverse directions rotation vacuum arc-chutes output toggle arm 8 is to influence the position of vacuum interrupter slide plate 9
It sets.Vacuum interrupter closure then interlocks (facing) rotation vacuum arc-chutes output toggle arm 8 clockwise by internal mechanism, thus band
Dynamic vacuum interrupter slide plate 9 moves upwards；Vacuum interrupter, which disconnects, then interlocks (facing) rotation counterclockwise very by internal mechanism
Empty arc-chutes output toggle arm 8, so that vacuum interrupter slide plate 9 be driven to move downward.Therefore under vacuum interrupter closed state, vacuum
Arc-chutes slide plate 9 is relatively on the upper side, vacuum interrupter off-state, and vacuum interrupter slide plate 9 is relatively on the lower side.
Vacuum interrupter output toggle arm 8 by inside switch cabinet interlocking mechanism respectively with ground connection main shaft, be isolated main shaft link.
--- --- closed ground switch before overhauling --- inspection of breaking down and disconnect disconnecting switch that switchgear is by operating normally
Repair end and disconnect earthing switch --- closure disconnecting switch is restored to operate normally, and is divided into five processes.
Process one: under normal operating conditions, disconnecting switch is in closed state to switchgear at this time, and earthing switch is in disconnected
Open state, vacuum interrupter are in closed state, and indicating piece observation is isolated in overall structure as shown in Fig. 3-1,3-2, on panel 20
Window 21 shows that the disconnecting switch on disconnecting switch indicating piece 14 is closed mark 15, and ground connection indicating piece observation window 22 shows earthing switch
Earthing switch on indicating piece 10 disconnects mark 18, and Display panel is as shown in Fig. 3-3.
Process two: disconnecting switch need to be disconnected by breaking down.Handle is then inserted into isolated operation hole 2 (such as attached drawing counterclockwise
Front view shown in 3-1,3-3) rotation isolation main shaft, isolation 1 clockwise of connecting lever (rearview as shown in attached drawing 3-2) rotation, band
Dynamic spacer link 3 moves, and vacuum interrupter slide plate 9 is driven to move downward, and makes to be isolated indicating piece rotational axis 12 in vacuum extinction
Circular motion is done on 9 upper end arc slotted hole of room slide plate, disconnecting switch indicating piece 14 is around isolation instruction 13 up time of disk rotating shaft
Needle (backsight) rotation, (facing) counterclockwise rotation are interlocked during main shaft is isolated by switchgear mechanism, and vacuum can be first disconnected
Arc-chutes disconnect disconnecting switch again, and 8 clockwise of vacuum interrupter output toggle arm (backsight) is transported during disconnecting vacuum interrupter
It is dynamic, to drive vacuum interrupter slide plate 9 to move downward, since disconnecting switch indicating piece 14, earthing switch indicating piece 10 pass through
Vacuum interrupter slide plate 9 is connected, therefore moves downwardly together, leads to that the display disconnecting switch of indicating piece observation window 21 is isolated on panel 20
The second disconnecting switch on indicating piece 14 disconnects mark 17, and ground connection indicating piece observation window 22 is shown on earthing switch indicating piece 10
Earthing switch disconnects mark 18, and Display panel is as shown in Fig. 4-3.Disconnecting switch is in an off state at this time, and earthing switch is in
Off-state, vacuum interrupter are in an off state, and overall structure is as shown in Fig. 4-1,4-2.
Process three: closed ground switch before overhauling.Then handle is inserted into ground connection handle hole 5 to rotate counterclockwise (facing) and be connect
Ground main shaft, (backsight) rotation clockwise of earthed crank arm 6, drives ground connection connecting rod 4 to move, vacuum interrupter slide plate 9 is driven to transport upwards
It is dynamic, so that ground connection indicating piece rotational axis 7 is done circular motion, earthing switch on 9 lower end arc slotted hole of vacuum interrupter slide plate
Indicating piece 10 is around (backsight) rotation counterclockwise of ground connection instruction disk rotating shaft 11, the process of (facing) counterclockwise rotation ground connection main shaft
In interlocked by switchgear mechanism, can first closed ground switch reclose vacuum interrupter, during being closed vacuum interrupter
8 inverse clock of vacuum interrupter output toggle arm (backsight) movement, to drive vacuum interrupter slide plate 9 to move upwards, due to isolation
It is connected by vacuum interrupter slide plate 9 to switch indicating piece 14, earthing switch indicating piece 10, therefore moves upwardly together, leads to panel
Indicating piece observation window 21 is isolated on 20 and shows that the first disconnecting switch on disconnecting switch indicating piece 14 disconnects mark 16, ground connection instruction
Piece observation window 22 shows that the earthing switch on earthing switch indicating piece 10 is closed mark 19, and Display panel is as shown in Fig. 5-3.At this time
Disconnecting switch is in an off state, and earthing switch is in closed state, and vacuum interrupter is in closed state, and overall structure is as schemed
Shown in 5-1,5-2.
Process four: maintenance terminates to disconnect earthing switch.Handle is then inserted into (facing) rotation clockwise in ground connection handle hole 5
It is grounded main shaft, (backsight) rotation counterclockwise of earthed crank arm 6 drives ground connection connecting rod 4 to move, drives vacuum interrupter slide plate 9 downward
Movement makes ground connection indicating piece rotational axis 7 do circular motion on 9 lower end arc slotted hole of vacuum interrupter slide plate, and ground connection is opened
Indicating piece 10 is closed around (backsight) rotation clockwise of ground connection instruction disk rotating shaft 11, the mistake of (facing) clockwise rotation ground connection main shaft
It is interlocked in journey by switchgear mechanism, can first disconnect closure vacuum interrupter and disconnect earthing switch again, disconnect vacuum interrupter
8 clockwise of vacuum interrupter output toggle arm (backsight) moves in the process, so that vacuum interrupter slide plate 9 is driven to move downward, by
It is connected in disconnecting switch indicating piece 14, earthing switch indicating piece 10 by vacuum interrupter slide plate 9, therefore is moved downwardly together, is led
It causes isolation indicating piece observation window 21 on panel 20 to show that the second disconnecting switch on disconnecting switch indicating piece 14 disconnects mark 17, connects
Ground indicating piece observation window 22 shows that the earthing switch on earthing switch indicating piece 10 disconnects mark 18, Display panel such as Fig. 4-3 institute
Show.Disconnecting switch is in an off state at this time, and earthing switch is in an off state, and vacuum interrupter is in an off state, whole
Structure is as shown in Fig. 4-1,4-2.
Process five: closure disconnecting switch is restored to operate normally.Then handle is inserted into isolated operation hole 2 clockwise (facing)
Rotation isolation main shaft, isolation 1 inverse clock of connecting lever (backsight) rotation drive spacer link 3 to move, drive vacuum interrupter slide plate 9
It moves upwards, isolation indicating piece rotational axis 12 is made to do circular motion on 9 upper end arc slotted hole of vacuum interrupter slide plate, every
It leaves and closes indicating piece 3 around (backsight) rotation clockwise of isolation instruction disk rotating shaft 13, (facing) clockwise rotation isolation main shaft
During interlocked by switchgear mechanism, can first closure disconnecting switch reclose vacuum interrupter, be closed vacuum interrupter
8 inverse clock of vacuum interrupter output toggle arm (backsight) moves in the process, so that vacuum interrupter slide plate 9 is driven to move upwards, by
It is connected in disconnecting switch indicating piece 14, earthing switch indicating piece 10 by vacuum interrupter slide plate 9, therefore is moved upwardly together, is led
Isolation indicating piece observation window 21 on panel 20 is caused to show that the disconnecting switch on disconnecting switch indicating piece 14 is closed mark 15, ground connection refers to
Show that piece observation window 22 shows that the earthing switch on earthing switch indicating piece 10 disconnects mark 18, Display panel is as shown in Fig. 3-3.This
When disconnecting switch be in closed state, earthing switch is in an off state, and vacuum interrupter is in closed state, and overall structure is such as
Shown in Fig. 3-1,3-2.
Two disconnection marks one on the other are set on isolation indicating piece, is grounded the disconnection markings being arranged on indicating piece and omits
It is long, avoid the movement of vacuum interrupter slide plate 9 when sharing vacuum interrupter of switchgear mechanism from making isolation and ground connection observation window
There is mistake in instruction.
Applicant combines Figure of description to be described in detail and describe the embodiment of the present invention, but this field skill
Art personnel are it should be understood that above embodiments are only the preferred embodiments of the invention, and explanation is intended merely to help reader in detail
More fully understand spirit of that invention, and it is not intended to limit the protection scope of the present invention, on the contrary, any based on invention essence of the invention
Any improvement or modification made by mind should all be fallen within the scope and spirit of the invention.
Claims (10)
1. a kind of disconnecting switch for nitrogen switchgear and earthing switch instruction device, including disconnecting switch indicating piece (14),
Connecting lever (1), spacer link (3), earthing switch indicating piece (10), earthed crank arm (6), ground connection connecting rod (4), vacuum interrupter are isolated
Slide plate (9)；It is characterized by:
Spacer link (3) and disconnecting switch indicating piece (14) are respectively positioned on vacuum interrupter slide plate (9), and the one of spacer link (3)
End is connected with disconnecting switch indicating piece (14) by the way that indicating piece rotational axis (12) are isolated, the isolation indicating piece rotational axis
(12) it is placed in the arc slotted hole of vacuum interrupter slide plate (9) upper end；The other end of spacer link (3) and isolation connecting lever (1)
It is fixedly connected；
The disconnecting switch indicating piece (14) is connected by isolation instruction disk rotating shaft (13) and vacuum interrupter slide plate (9) rotation
It connects；
Ground connection connecting rod (4) and earthing switch indicating piece (10) are respectively positioned on vacuum interrupter slide plate (9), and the one of ground connection connecting rod (4)
End and earthing switch indicating piece (10) pass through ground connection indicating piece rotational axis (7) connection, the ground connection indicating piece rotational axis (7)
It is limited in the arc slotted hole of vacuum interrupter slide plate (9) lower end；It is grounded the other end and earthed crank arm (6) phase of connecting rod (4)
Even；
The earthing switch indicating piece (10) is connected by ground connection instruction disk rotating shaft (11) and vacuum interrupter slide plate (9) rotation
It connects；
Vacuum interrupter output toggle arm (8) by inside switch cabinet interlocking mechanism respectively with ground connection main shaft, be isolated main shaft link.
2. the disconnecting switch according to claim 1 for nitrogen switchgear and earthing switch instruction device, feature exist
In:
It is offered isolated operation hole (2) in isolation connecting lever (1), isolated operation hole (2) are for matching handle manual operation isolation
Switch；
Ground connection handle hole (5) is offered on earthed crank arm (6), ground connection handle hole (5) is for matching handle manual operation ground connection
Switch.
3. the disconnecting switch according to claim 2 for nitrogen switchgear and earthing switch instruction device, feature exist
In:
Action pane is opened up respectively at switch cabinet panel (20) corresponding isolated operation hole (2), the position for being grounded handle hole (5).
4. the disconnecting switch according to claim 3 for nitrogen switchgear and earthing switch instruction device, feature exist
In:
Switch cabinet panel (20) corresponding disconnecting switch indicating piece (14), earthing switch indicating piece (10) position at open up respectively
Indicating piece observation window (21) and ground connection indicating piece observation window (22) are isolated.
5. the disconnecting switch according to claim 4 for nitrogen switchgear and earthing switch instruction device, feature exist
In:
On disconnecting switch indicating piece (14) be equipped with disconnecting switch closure mark (15), the first disconnecting switch disconnect mark (16),
Second disconnecting switch disconnects mark (17)；
Earthing switch indicating piece (10) is equipped with earthing switch closure mark (19), earthing switch disconnects mark (18).
6. the disconnecting switch according to claim 5 for nitrogen switchgear and earthing switch instruction device, feature exist
In:
Keep apart closing conjunction state in disconnecting switch closure mark (15) the instruction switchgear；
First disconnecting switch, which disconnects, keeps apart shutdown and opens and vacuum interrupter closure in mark (16) instruction switchgear
State；
Second disconnecting switch, which disconnects, keeps apart that shutdown is opened and vacuum interrupter disconnects in mark (17) instruction switchgear
State；
The earthing switch closure mark (19) and earthing switch disconnect mark (18) and indicate respectively earthing switch open and close
State.
7. the disconnecting switch according to claim 6 for nitrogen switchgear and earthing switch instruction device, feature exist
In:
When handle insertion isolated operation hole (2) rotation isolation main shaft is disconnected disconnecting switch, isolation connecting lever (1) passes through spacer link
(3) it drives vacuum interrupter slide plate (9) to move downward, makes to be isolated indicating piece rotational axis (12) in vacuum interrupter slide plate (9)
Circular motion is done on the arc slotted hole of upper end, disconnecting switch indicating piece (14) is around isolation instruction disk rotating shaft (13) rotation；
Vacuum interrupter, which is first disconnected, by inside switch cabinet interlocking mechanism disconnects disconnecting switch, vacuum interrupter output toggle arm again
(8) it drives vacuum interrupter slide plate (9) to move downward, indicating piece observation window (21) display isolation is isolated on switch cabinet panel (20)
It switchs the second disconnecting switch on indicating piece (14) and disconnects mark (17), ground connection indicating piece observation window (22) shows that earthing switch refers to
Show that the earthing switch on piece (10) disconnects mark (18), disconnecting switch is in an off state, and earthing switch is in an off state, very
Empty arc-chutes are in an off state.
8. the disconnecting switch according to claim 6 for nitrogen switchgear and earthing switch instruction device, feature exist
In:
When by handle insertion isolated operation hole (2) rotation isolation main shaft closure disconnecting switch, isolation connecting lever (1) passes through spacer link
(3) it drives vacuum interrupter slide plate (9) to move upwards, makes to be isolated indicating piece rotational axis (12) in vacuum interrupter slide plate (9)
Circular motion is done on the arc slotted hole of upper end, disconnecting switch indicating piece (14) is around isolation instruction disk rotating shaft (13) rotation；
Disconnecting switch, which is first closed, by inside switch cabinet interlocking mechanism recloses vacuum interrupter, vacuum interrupter output toggle arm
(8) it drives vacuum interrupter slide plate (9) to move upwards, indicating piece observation window (21) display isolation is isolated on switch cabinet panel (20)
The disconnecting switch closure mark (15) on indicating piece (14) is switched, ground connection indicating piece observation window (22) shows earthing switch indicating piece
(10) earthing switch on disconnects mark (18), and disconnecting switch is in closed state, and earthing switch is in an off state, and vacuum is gone out
Arc chamber is in closed state.
9. the disconnecting switch according to claim 6 for nitrogen switchgear and earthing switch instruction device, feature exist
In:
When handle is inserted into ground connection handle hole (5) rotation ground connection main shaft closed ground switch, earthed crank arm (6) passes through ground connection connecting rod
(4) it drives vacuum interrupter slide plate (9) to move upwards, makes to be grounded indicating piece rotational axis (7) under vacuum interrupter slide plate (9)
Circular motion is done on the arc slotted hole of end, earthing switch indicating piece (10) is around ground connection instruction disk rotating shaft (11) rotation；
Vacuum interrupter, vacuum interrupter output toggle arm are reclosed by elder generation, inside switch cabinet interlocking mechanism closed ground switch
(8) it drives vacuum interrupter slide plate (9) to move upwards, indicating piece observation window (21) display isolation is isolated on switch cabinet panel (20)
It switchs the first disconnecting switch on indicating piece (14) and disconnects mark (16), ground connection indicating piece observation window (22) shows that earthing switch refers to
Show the earthing switch closure mark (19) on piece (10), disconnecting switch is in an off state, and earthing switch is in closed state, very
Empty arc-chutes are in closed state.
10. the disconnecting switch according to claim 6 for nitrogen switchgear and earthing switch instruction device, feature exist
In:
When handle is inserted into ground connection handle hole (5) rotation ground connection main shaft disconnection earthing switch, earthed crank arm (6) passes through ground connection connecting rod
(4) it drives vacuum interrupter slide plate (9) to move downward, makes to be grounded indicating piece rotational axis (7) under vacuum interrupter slide plate (9)
Circular motion is done on the arc slotted hole of end, earthing switch indicating piece (10) is around ground connection instruction disk rotating shaft (11) rotation；
Vacuum interrupter, which is first disconnected, by inside switch cabinet interlocking mechanism disconnects earthing switch, vacuum interrupter output toggle arm again
(8) it drives vacuum interrupter slide plate (9) to move downward, indicating piece observation window (21) display isolation is isolated on switch cabinet panel (20)
It switchs the second disconnecting switch on indicating piece (14) and disconnects mark (17), ground connection indicating piece observation window (22) shows that earthing switch refers to
Show that the earthing switch on piece (10) disconnects mark (18), disconnecting switch is in an off state, and earthing switch is in an off state, very
Empty arc-chutes are in an off state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610943466.4A CN106548885B (en) | 2016-10-26 | 2016-10-26 | A kind of disconnecting switch for nitrogen switchgear and earthing switch instruction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610943466.4A CN106548885B (en) | 2016-10-26 | 2016-10-26 | A kind of disconnecting switch for nitrogen switchgear and earthing switch instruction device |
Publications (2)
| Publication Number | Publication Date |
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| CN106548885A CN106548885A (en) | 2017-03-29 |
| CN106548885B true CN106548885B (en) | 2019-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN111341580B (en) * | 2020-03-18 | 2022-02-18 | 苏州飞腾电器有限公司 | Three-position dual-power transfer switch |
| US11476647B1 (en) * | 2021-04-22 | 2022-10-18 | Rockwell Automation Technologies, Inc. | Maintenance grounding device in motor control center with integrated interlock system |
| CN113990705B (en) * | 2021-11-05 | 2022-08-23 | 山东泰开成套电器有限公司 | Environment-friendly gas insulated switchgear and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19619452C2 (en) * | 1996-05-14 | 2000-04-20 | Abb Patent Gmbh | Slide-in device for a control panel for an electrical medium-voltage or low-voltage switchgear |
| CN200947394Y (en) * | 2006-08-24 | 2007-09-12 | 上海天灵开关厂有限公司 | LMG-12/LCG-12 three-position SF loading switch position indicating and interlocking mechanism |
| CN202772002U (en) * | 2012-07-24 | 2013-03-06 | 上海天灵开关厂有限公司 | Interlocking device of load switch and grounding switch of ring network cabinet mechanism |
| CN205354916U (en) * | 2016-01-28 | 2016-06-29 | 厦门市凯禹开关有限公司 | Isolator and vacuum switch integration operating device |
| CN205542545U (en) * | 2016-01-28 | 2016-08-31 | 厦门市凯禹开关有限公司 | High voltage isolation , earthing switch integration operating device |
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