CN109687336A - A kind of inflatable high-voltage switch gear gas tank - Google Patents
A kind of inflatable high-voltage switch gear gas tank Download PDFInfo
- Publication number
- CN109687336A CN109687336A CN201910169905.4A CN201910169905A CN109687336A CN 109687336 A CN109687336 A CN 109687336A CN 201910169905 A CN201910169905 A CN 201910169905A CN 109687336 A CN109687336 A CN 109687336A
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- China
- Prior art keywords
- gas chamber
- moving knife
- bus
- switching gas
- switching
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The present invention relates to high voltage electric equipment field, especially a kind of inflatable high-voltage switch gear gas tank, including switching gas chamber and bus gas chamber；Switching gas chamber internal upper part is disconnecting switch, and disconnecting switch is connect by moving knife seat copper bar with the breaker end of incoming cables in the middle part of switching gas chamber, and breaker tail portion leading-out terminal is connect by outlet copper conductor with switching gas chamber lower part outlet casing tube；Disconnecting switch moving knife drive shaft is connect with the pull rod of the disconnecting switch operating mechanism outside switching gas chamber；Breaker moved end pull rod is connect with the breaker operation mechanism outside switching gas chamber.Switching gas chamber and bus gas chamber are an entirety by laser welding, seal against each other as independent air chamber, there is pressure relief opening respectively.The present invention reduces the volume of switch；Double air chamber structures improve gas tank integral strength, while bus and switching gas chamber being separated, and improve the safety of switchgear.
Description
Technical field
The present invention relates to high voltage electric equipment field, especially a kind of inflatable high-voltage switch gear gas tank.
Background technique
With the sustainable development of China's economic, power industry has obtained significant progress.High-tension switch gear is as electric power
System loading distribution and salvo, play more and more positive effect.China's high-tension switch gear mainly uses two major classes
Insulation technology, one is solid insulation technology, another kind is gas insulation technology.In the prior art, in transmission and distribution network 40.5kV
Switchgear in voltage class, based on gas insulation technology.Main technical schemes are by breaker, disconnecting switch, bus
Equal components are mounted in gas tank, realize switch and alternate by being filled with insulating gas (such as sulfur hexafluoride gas) into gas tank
Insulation.Due to 40.5kV inflatable high-voltage switchgear, volume is larger, and short-circuiting device movement moment electric power is larger, and gas tank is caused to hold
Easily deformation occurs, influences the connection reliability of bus, and in-site installation requires also higher.
Summary of the invention
The purpose of the present invention is to propose to a kind of inflatable high-voltage switch gear gas tank, it is small in size, connection it is reliable, highly-safe.
To achieve the above object, the technical scheme is that a kind of inflatable high-voltage switch gear gas tank, including switching gas chamber
With bus gas chamber, bus gas chamber has bus gas chamber pressure relief opening, bus connection seat, bus and wall bushing, sets at the top of switching gas chamber
There is pressure relief opening；Switching gas chamber internal upper part is disconnecting switch, and disconnecting switch passes through the open circuit in the middle part of moving knife seat copper bar and switching gas chamber
The connection of device end of incoming cables, breaker tail portion leading-out terminal are connect by outlet copper conductor with switching gas chamber lower part outlet casing tube；Keep apart
Moving knife drive shaft is closed to connect with the pull rod of the disconnecting switch operating mechanism outside switching gas chamber；Breaker moved end pull rod and switch
Breaker operation mechanism connection outside gas chamber.A kind of inflatable high-voltage switch gear gas tank passes through laser welding work using stainless steel plate
Skill welding.Switching gas chamber and bus gas chamber are an entirety by laser welding, seal against each other as independent air chamber, there is pressure release respectively
Mouthful.
A kind of disconnecting switch in inflatable high-voltage switch gear gas tank is located at switching gas chamber top, and ground connection tool apron is fixed on switch
Wall bushing has quiet tool apron in switching gas chamber on the channel steel of plenum roof, and quiet knife is indoor by wall bushing and bus-bar room gas
Bus connection；There is moving knife connecting lever among moving knife, moving knife connecting lever has hole to connect by pin with moving knife support base, and using pin as axis
Rotation, moving knife are slidably connected by contact and moving knife support base；Connecting lever is connect by moving knife pull rod with moving knife drive shaft.Isolation
Switch operation mechanism drives the movement of moving knife connecting lever by driving the rotation of moving knife drive shaft, through moving knife pull rod, then is turned by moving knife
Armband moves moving knife rotation, realizes that moving knife connect with quiet tool apron or connect or be in ground connection tool apron intermediate isolating state.Moving knife seat
Copper bar is fixed on switching gas chamber foreboard by insulated support.
The contact of moving knife assumes responsibility for electric current when switch operation, and contact connection reliability operates normally to Guan Chong switch
It wants.Conventional operation selects the connection of moving knife single contact, and in the case where big stream, single contact connection has been unable to meet operation needs, sternly
The ablation that will lead between contact and tool apron of weight.In order to solve the reliability of contact contact when high current, moving knife uses 2
Group blade is fixed on side by side on moving knife connecting lever, and every group of 2 blades are symmetrical along moving knife connecting lever, is moved with moving knife connecting lever.Moving knife
Respectively there is a contact on the inside of piece both ends, a contact is slidably connected with moving knife support base, another contact is slided with quiet tool apron
Connection or ground connection tool apron are slidably connected, and realize conducting or grounding function.When moving knife is among quiet tool apron and ground connection tool apron, isolation
Switch is in isolation.There are pressure spring, screw rod and stud in movable cutter set.There are 2 through-holes on moving knife, be provided with counterbore on the outside of through-hole,
In counterbore, pressure spring is pressed into counterbore pressure spring by screw rod, and passes through through-hole, and the fixation hole being then passed through on moving knife connecting lever penetrates
The through-hole of the cutting blade of opposite side；Pressure spring is pressed into moving knife counterbore by the stud of opposite side, is then being screwed into screw rod wire hole.Pass through tune
Section stud is screwed into the depth of screw rod, changes the stroke of pressure spring, realizes the adjustment of moving knife contact pressure.Contact pressure is excessive, will increase
Add the power output of operating mechanism；Contact pressure is too small, and the loop resistance of switch becomes larger.The group number for increasing moving knife, improves switch
Current-carrying capability, while improving disconnecting switch heat-sinking capability, avoid contact temperature it is excessively high caused by ablation phenomen.
Breaker is made of circuit breaker polar and breaker operation mechanism.Circuit breaker polar includes vacuum interrupter, moved end
Copper tip, static side copper tip, moved end pull rod, spring touch finger, solid insulating layer, vacuum interrupter static side and static side copper tip connect
It connects, movable end of vacuum arc extinguishing chamber is connect by spring touch finger with moved end copper tip, the moving knife copper bar of moved end copper tip and disconnecting switch
Connection.Circuit breaker tie rod end is bolted on switching gas chamber gas tank foreboard.The ripple of pull rod and breaker operation mechanism
Cover pull rod connection.Outlet casing tube is located at below bus gas chamber, switching gas chamber lower part rear.Copper of the outlet casing tube in switching gas chamber
Terminal is connected by the static side copper tip of outlet copper conductor and circuit breaker polar.Breaker uses vacuum extinction technology and sealing work
Skill significantly reduces the volume of breaker, improves the insulating capacity of breaker.The layout of outlet casing tube, takes full advantage of mother
The space of line gas chamber lower part reduces the height of switch gas tank, improves the working depth of cable and outlet casing tube assembly, convenient
Construction.
The beneficial effects of the present invention are: 1, breaker uses vacuum interrupter and solid insulating material, switch is reduced
Volume；2, circuit breaker polar uses equal casting die and semi-conductive screen ground plane, reduces the partial discharge quantity of product, improves
The service life of product；3, double air chamber structures improve gas tank integral strength, while bus and switching gas chamber being separated, and improve out
Close the safety of equipment；4, the intensity for improving bus-bar room gas chamber reduces the difficulty of bus connection.
Detailed description of the invention
1 inflatable high-voltage switch gear gas tank right side view of attached drawing
2 disconnecting switch moving knife component schematic diagram of attached drawing
3 disconnecting switch moving knife component cross-sectional view of attached drawing
1, drawing reference numeral illustrates: switching gas chamber, 2, bus gas chamber, 3, disconnecting switch operating mechanism, 4, disconnecting switch, 4.1, connect
Ground tool apron, 4.2, moving knife, 4.21, pressure spring, 4.22, screw rod, 4.3, quiet tool apron, 4.4, moving knife pull rod, 4.5, moving knife drive shaft,
4.6, moving knife support base, 4.7, moving knife connecting lever, 4.8, insulated support, 5, breaker operation mechanism, 6, breaker, 7, outlet copper
Conducting wire, 8, outlet casing tube, 9, bus-bar room gas chamber pressure relief opening, 10, switching gas chamber pressure relief opening, 11, bus connection seat, 12, set through walls
Pipe.
Specific embodiment
Technical solution of the present invention is described further with reference to the accompanying drawing.
Embodiment 1
Attached drawing 1 is right view of the invention, for ease of description, eliminates the left side sealing plate of switching gas chamber.As shown in Fig. 1,
A kind of inflatable high-voltage switch gear gas tank switchs voltage rating 40.5kV, rated current 1250A, gas tank width 600mm.Including opening
Gas chamber 1 and bus gas chamber 2 are closed, is flushed at the top of switching gas chamber 1 and bus gas chamber 2,1 rear of switching gas chamber is bus gas chamber 2, bus
2 bottom of gas chamber is higher than the bottom of switching gas chamber 1, is the outlet casing tube 8 of switching gas chamber 1 below bus gas chamber 1.Bus gas chamber 2 has
Bus gas chamber pressure relief opening 9, bus connection seat 11, bus and wall bushing 12.Switching gas chamber pressure relief opening is equipped at the top of switching gas chamber 1
10；1 internal upper part of switching gas chamber is disconnecting switch 4, the breaker 6 that disconnecting switch 4 passes through 1 middle part of moving knife seat copper bar and switching gas chamber
End of incoming cables connection, 6 tail portion leading-out terminal of breaker are connect by outlet copper conductor 7 with switching gas chamber lower part outlet casing tube 8；Keep apart
The moving knife drive shaft 4.5 of pass 4 is connect with the pull rod of the disconnecting switch operating mechanism 3 outside switching gas chamber 1；6 moved end of breaker
Pull rod is connect with the breaker operation mechanism 5 outside switching gas chamber 1.Inflatable high-voltage switch gear gas tank is using stainless steel plate by swashing
The welding of photocoagulation technique.Switching gas chamber 1 and bus gas chamber 2 are an entirety by laser welding, are sealed against each other as independent air chamber,
There is pressure relief opening respectively, avoids influencing each other for bus and switch fault, while improving the integral strength of gas tank, reduce gas
The deformation of case.
A kind of disconnecting switch 4 in inflatable high-voltage switch gear gas tank is located at 1 top of switching gas chamber, and ground connection tool apron 4.1 is fixed
On the top channel steel in switching gas chamber 1, wall bushing 12 has quiet tool apron 4.3 in switching gas chamber 1, and quiet knife passes through wall bushing
12 connect with the bus in bus gas chamber 2；There is moving knife connecting lever among moving knife 4.2, moving knife connecting lever has hole to pass through pin and moving knife branch
It supports seat 4.6 to connect, and is rotated by axis of pin, moving knife 4.2 is slidably connected by contact with moving knife support base 4.6；Moving knife connecting lever
4.7 are connect by moving knife pull rod 4.4 with moving knife drive shaft.Disconnecting switch operating mechanism 3 is by driving moving knife drive shaft 4.5
Rotation drives moving knife connecting lever 4.7 to move, then drives moving knife 4.2 to rotate by moving knife connecting lever 4.7 through moving knife pull rod 4.4, realizes dynamic
Knife 4.2 connect with quiet tool apron 4.3 or connect or be in ground connection tool apron 4.1 intermediate isolating state.Moving knife seat copper bar passes through insulation
Supporting element 4.8 is fixed on 1 foreboard of switching gas chamber.
The contact of moving knife 4.2 bears electric current when switch operation, and contact connection reliability operates normally switch and extremely closes
It is important.Conventional low current operation, selects the connection of moving knife single contact；In the case where big stream, single contact connection has been unable to meet fortune
Row needs, the serious ablation that will lead between contact and tool apron.In order to solve the reliability of contact contact when high current, such as
Fig. 2, shown in 3, moving knife uses 2 groups of cutting blades and is fixed on moving knife connecting lever side by side, and every group of 2 blades are right along moving knife connecting lever 4.7
Claim distribution, is moved with moving knife connecting lever.Respectively there is a contact on the inside of cutting blade both ends, a contact and moving knife support base 4.6 slide
Connection, another contact and is slidably connected or be grounded tool apron 4.1 with quiet tool apron 4.3 and be slidably connected, and realization is connected or grounding function.
When moving knife 4.2 is among quiet tool apron and ground connection tool apron, disconnecting switch 4 is in isolation.There are pressure spring 4.21, spiral shell in movable cutter set
Bar 4.22 and stud.There are 2 through-holes on cutting blade, counterbore is provided on the outside of through-hole, pressure spring 4.21 is in counterbore, and screw rod is by pressure spring
It is pressed into counterbore, and passes through through-hole, the fixation hole being then passed through on moving knife connecting lever 4.7 penetrates the through-hole of the cutting blade of opposite side；Opposite side
Stud by pressure spring be pressed into moving knife counterbore in, be then screwed into 4.22 wire hole of screw rod.The depth for being screwed into screw rod by adjusting stud
Degree changes the stroke of pressure spring, realizes the adjustment of moving knife contact pressure.Contact pressure is excessive, will increase the power output of operating mechanism；
Contact pressure is too small, and the loop resistance of switch becomes larger.The group number for increasing moving knife, improves the current-carrying capability of switch, improves simultaneously
Disconnecting switch heat-sinking capability, avoid contact temperature it is excessively high caused by ablation phenomen.
Breaker 6 is made of circuit breaker polar and breaker operation mechanism 5.Circuit breaker polar includes vacuum interrupter, moves
Copper tip, static side copper tip, moved end pull rod, spring touch finger, solid insulating layer are held, vacuum interrupter static side and static side copper tip connect
It connects, movable end of vacuum arc extinguishing chamber is connect by spring touch finger with moved end copper tip, the moving knife seat copper of moved end copper tip and disconnecting switch
Row's connection.Breaker is bolted on switching gas chamber gas tank foreboard.The radiation fins of pull rod and breaker operation mechanism 5 is drawn
Bar connection.Outlet casing tube is located at below bus gas chamber, switching gas chamber lower part rear.Copper end of the outlet casing tube 8 in switching gas chamber
Son is connect by outlet copper conductor 7 with the static side copper tip of circuit breaker polar.Breaker 6 uses vacuum extinction technology and sealing work
Skill significantly reduces the volume of breaker, improves the insulating capacity of breaker.The layout of outlet casing tube 8, takes full advantage of mother
The space of line gas chamber lower part reduces the height of switch gas tank, improves the working depth of cable and outlet casing tube assembly, convenient
Construction.
Breaker uses vacuum interrupter and solid insulating material, reduces the volume of switch；Double air chamber structures, improve
Gas tank integral strength, while bus and switching gas chamber being separated, improve the safety of switchgear.
Claims (4)
1. a kind of inflatable high-voltage switch gear gas tank, including switching gas chamber (1) and bus gas chamber (2), it is characterised in that: switching gas chamber
(1) weld together with bus gas chamber (2), flushed at the top of switching gas chamber (1) and bus gas chamber (2), switching gas chamber (1) rear is
Bus gas chamber (2), bus gas chamber (2) bottom are higher than the bottom of switching gas chamber (1), are switching gas chamber (1) below bus gas chamber (1)
Outlet casing tube (8)；There is bus gas chamber pressure relief opening (9) at the top of bus gas chamber (2), there is switching gas chamber to let out at the top of switching gas chamber (1)
It presses mouth (10)；Switching gas chamber (1) internal upper part is disconnecting switch (4), and disconnecting switch (4) passes through moving knife seat copper bar and switching gas chamber
(1) breaker (6) the end of incoming cables connection in the middle part of, breaker (6) tail portion leading-out terminal pass through outlet copper conductor (7) and switching gas chamber
(1) lower part outlet casing tube (8) connects.
2. inflatable high-voltage switch gear gas tank as described in claim 1, it is characterised in that: the ground connection tool apron of the disconnecting switch (4)
(4.1) it is fixed on the top channel steel in switching gas chamber (1), wall bushing (12) has quiet tool apron in switching gas chamber (1)
(4.3), quiet knife is connect by wall bushing (12) with the bus in bus gas chamber (2)；There is moving knife connecting lever among moving knife (4.2)
(4.7), moving knife connecting lever (4.7) has hole to connect by pin with moving knife support base (4.6), and rotates by axis of pin, moving knife
(4.2) it is slidably connected by contact with moving knife support base (4.6)；Moving knife connecting lever (4.7) is driven by moving knife pull rod (4.4) and moving knife
Turn axis connection.
3. inflatable high-voltage switch gear gas tank as claimed in claim 2, it is characterised in that: the moving knife (4.2) uses 2 groups of moving knife
Piece is fixed on side by side on moving knife connecting lever (4.7), and every group of 2 blades are symmetrical along moving knife connecting lever (4.7)；There are 2 on cutting blade
Through-hole, through-hole outside are provided with counterbore, and pressure spring (4.21) is in counterbore.
4. inflatable high-voltage switch gear gas tank as described in claim 1, it is characterised in that: breaker (6) is by circuit breaker polar and breaks
Road device operating mechanism (5) composition；Circuit breaker polar include vacuum interrupter, moved end copper tip, static side copper tip, moved end pull rod,
Spring touch finger, solid insulating layer, vacuum interrupter static side are connect with static side copper tip, and movable end of vacuum arc extinguishing chamber passes through spring touch finger
It is connect with moved end copper tip, the moving knife seat copper bar connection of moved end copper tip and disconnecting switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910169905.4A CN109687336B (en) | 2019-03-07 | 2019-03-07 | Inflatable high-voltage switch gas tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910169905.4A CN109687336B (en) | 2019-03-07 | 2019-03-07 | Inflatable high-voltage switch gas tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109687336A true CN109687336A (en) | 2019-04-26 |
| CN109687336B CN109687336B (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910169905.4A Active CN109687336B (en) | 2019-03-07 | 2019-03-07 | Inflatable high-voltage switch gas tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109687336B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013775A (en) * | 2021-04-15 | 2021-06-22 | 上海巴佩开关设备有限公司 | Double-air-chamber high-voltage switch air box |
| CN117578254A (en) * | 2024-01-19 | 2024-02-20 | 四川电器集团中低压智能配电有限公司 | Intelligent box-type heavy-current environment-friendly gas-insulated switchgear |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013775A (en) * | 2021-04-15 | 2021-06-22 | 上海巴佩开关设备有限公司 | Double-air-chamber high-voltage switch air box |
| CN117578254A (en) * | 2024-01-19 | 2024-02-20 | 四川电器集团中低压智能配电有限公司 | Intelligent box-type heavy-current environment-friendly gas-insulated switchgear |
| CN117578254B (en) * | 2024-01-19 | 2024-03-29 | 四川电器集团中低压智能配电有限公司 | Intelligent box-type heavy-current environment-friendly gas-insulated switchgear |
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| Publication number | Publication date |
|---|---|
| CN109687336B (en) | 2024-01-30 |
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