WO2015043460A1 - 高速接地开关及其构成的接地开关装配单元 - Google Patents

高速接地开关及其构成的接地开关装配单元 Download PDF

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Publication number
WO2015043460A1
WO2015043460A1 PCT/CN2014/087223 CN2014087223W WO2015043460A1 WO 2015043460 A1 WO2015043460 A1 WO 2015043460A1 CN 2014087223 W CN2014087223 W CN 2014087223W WO 2015043460 A1 WO2015043460 A1 WO 2015043460A1
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WIPO (PCT)
Prior art keywords
static
arc contact
arc
contact
conductor
Prior art date
Application number
PCT/CN2014/087223
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English (en)
French (fr)
Inventor
郭煜敬
钟建英
Original Assignee
国家电网公司
河南平高电气股份有限公司
平高集团有限公司
郭煜敬
钟建英
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from CN201310437611.8A external-priority patent/CN104143465B/zh
Priority claimed from CN201310437477.1A external-priority patent/CN104143464B/zh
Priority claimed from CN201310437735.6A external-priority patent/CN104143466B/zh
Application filed by 国家电网公司, 河南平高电气股份有限公司, 平高集团有限公司, 郭煜敬, 钟建英 filed Critical 国家电网公司
Publication of WO2015043460A1 publication Critical patent/WO2015043460A1/zh

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/04Means for extinguishing or preventing arc between current-carrying parts

Definitions

  • the invention relates to a high-speed grounding switch in the field of power transmission equipment and a grounding switch assembly unit thereof.
  • the UHV transmission line adopts 8 splits or even 12 splits, and the distance between the phases is large, the line is long. Therefore, the distributed capacitance of the line to the ground and the distributed capacitance between the phases are large, and the submerged power arc generated by the induced voltage of the sound phase is large.
  • the long burning time makes the success rate of single-phase automatic reclosing greatly reduced, and the damage to the system is very serious. Therefore, corresponding measures must be taken to shorten the extinguishing time of the submerged power supply arc.
  • the methods for extinguishing the submerged power supply arc mainly include the installation of a high-speed grounding switch and a shunt reactor with a neutral point and a small reactance.
  • the technical solution of the high-speed grounding switch of the present invention is:
  • High-speed earthing switch including a sulfur hexafluoride arc extinguishing device for being placed in a closed air chamber of a casing of a corresponding assembly unit in use
  • the sulfur hexafluoride arc extinguishing device includes a static end assembly and a dynamic end assembly, and the static end
  • the static end conductor and the static arc contact electrically connected to the static end conductor are assembled, and the static end conductor is provided with a conductive rod connecting structure for fixed electrical connection with the adjacent ends of the corresponding two conductive rods, and the movable end assembly
  • the utility model comprises a moving arc contact which is grounded by a closing of the static arc contact
  • the high-speed grounding switch further comprises an operating mechanism for driving the power output end to be connected with the movable arc contact.
  • the static end conductor includes a conductive sleeve extending in an up-and-down direction, and the static arc contact is disposed on a lower end of the inner hole of the conductive sleeve through a coaxial line of the static arc contact fixing bracket.
  • the conductive rod connecting structure comprises an electrical connecting sleeve disposed perpendicularly to the axis of the static arc contact and electrically conductively inserted into a coaxial line of the corresponding conductive rod.
  • High-speed earthing switch including a sulfur hexafluoride arc extinguishing device for being placed in a closed air chamber of a casing of a corresponding assembly unit in use
  • the sulfur hexafluoride arc extinguishing device includes a static end assembly and a dynamic end assembly, and the static end
  • the assembly comprises a static arc contact and a static end conductor for electrical connection in the corresponding single-phase circuit
  • the static arc contact is fixedly connected to the static end conductor
  • the stationary end conductor is fixedly connected with a conductive support
  • the conductive support is away from
  • One end of the stationary end conductor is provided with a central conductor connection structure for fixed electrical connection with a center conductor on the insulating support structure in the housing
  • the movable end assembly includes a movable end support and is closed by the static arc contact
  • the high-speed grounding switch that connects the single-phase grounding, the high-speed grounding switch further includes an operating mechanism that is
  • the axis of the static arc contact extends in the up and down direction, the arcing contact is located on the lower side of the static arc contact, and the operating mechanism is located below the movable end assembly.
  • the static end conductor includes a conductive sleeve disposed coaxially with the static arc contact, and the static arc contact is disposed at a lower end of the inner hole of the conductive sleeve through a static arc contact fixing bracket.
  • the movable end support includes a lower insulation support sleeve disposed coaxially with the movable arc contact, and a lower end of the lower insulation support sleeve is provided with a detachable fixed connection with a lower end of the housing a lower bolt connection structure, wherein the lower insulation support cylinder is provided with an insulating rod that realizes a driving connection between the operating mechanism and the movable arc contact
  • High-speed earthing switch including a sulfur hexafluoride arc extinguishing device for being placed in a closed air chamber of a casing of a corresponding assembly unit in use
  • the sulfur hexafluoride arc extinguishing device includes a static end assembly and a dynamic end assembly
  • the static end comprises a static end support, a static end conductor disposed on the static end support, and a static arc contact electrically connected to the static end conductor, and the static end conductor is respectively disposed for fixing to an adjacent end of the corresponding two conductive rods
  • An electrically connected rod connecting structure the movable end assembly comprises a movable end support and a moving arc contact, a moving arc contact and a static arc contact which are grounded by the single pole phase by closing with the static arc contact Arranged horizontally in the left-right direction
  • the high-speed grounding switch further includes an operating mechanism that is coupled to the movable-arc contact at the power output end.
  • the static end conductor includes a conductive sleeve disposed coaxially with the static arc contact, and the static arc contact is disposed at a right end of the inner hole of the conductive sleeve through a static arc contact fixing bracket, the moving arc The contact is located on the right side of the static arc contact, and the operating mechanism is located on the right side of the movable arc contact.
  • the static end support includes a static end insulation support cylinder connected between the static end conductor and the movable end support, and the movable arc contact coaxial line is disposed in the static end insulation support cylinder.
  • the movable end support comprises a movable end insulation support cylinder disposed coaxially with the movable arc contact, and the movable end insulation support cylinder is internally provided with an insulating pull rod for realizing a driving connection between the operating mechanism and the movable arc contact.
  • the grounding switch assembly unit comprises a casing, and the casing is provided with a closed air chamber, and the air chamber wall of the airtight chamber is insulated and sealed by an insulating support structure with two central conductors for electrically connecting with the corresponding single phase during use.
  • a conductive rod electrically connected to each of the center conductors is disposed in the sealed air chamber, and the sealed gas chamber is further provided with a sulfur hexafluoride arc extinguishing device
  • the sulphur hexafluoride arc extinguishing device comprises a static end assembly and a movable end assembly which are respectively fixedly arranged with respect to the housing through the static end support and the movable end support, and the static end assembly comprises a static end conductor disposed on the static end support and a static arc contact electrically connected to the static end conductor, wherein the static end conductor is provided with a conductive rod connection structure respectively fixedly connected to the adjacent ends of the two conductive rods, and the movable end assembly includes passing through the single phase fault
  • the static arc contact is closed to open the single-phase grounding arc contact, and the grounding switch assembly unit further comprises an operating mechanism for driving the power output end to the moving arc contact.
  • the static end conductor includes a conductive sleeve extending in an up-and-down direction, and the static arc contact is disposed on a lower end of the inner hole of the conductive sleeve through a coaxial line of the static arc contact fixing bracket, where the movable arc contact is located The lower side of the static arc contact is located, and the operating mechanism is located on the lower side of the movable end assembly.
  • the housing includes a vertical cylinder extending in an up-and-down direction and two transverse cylinders disposed on two sides of the vertical cylinder, and the conductive rods are respectively disposed coaxially with the corresponding transverse cylinders, and the movable arc contacts The head and the static arc contact are disposed coaxially with the vertical cylinder.
  • the upper and lower ends of the vertical cylinder are respectively provided with upper and lower sealing structures which are sealingly matched with the cylinder wall of the vertical cylinder, and the insulating support structures are respectively disposed in the transverse cylinders, and the sealed air chamber
  • the upper and lower sealing structures, the insulating support structures and the vertical and transverse cylinders at corresponding positions are enclosed.
  • the grounding switch assembly unit comprises a casing, and the casing is provided with a closed air chamber, and the air chamber wall of the airtight chamber is insulated and sealed by an insulating support structure with two central conductors for electrically connecting with the corresponding single phase during use.
  • a sulphur hexafluoride arc extinguishing device is disposed in the closed air chamber, and the sulfur hexafluoride arc extinguishing device includes a static end assembly and a dynamic end assembly, the static end assembly includes a static arc contact and is used to pass the two center conductors Electrically connected to the static end conductor in the single-phase circuit, the static arc contact is fixedly connected to the static end conductor, and the stationary end conductor is fixedly connected with a conductive bracket, and the end of the conductive bracket away from the static end conductor is provided with a corresponding center a central conductor connection structure of the conductor fixed electrical connection, the movable end assembly comprises a movable end support and a movable arc contact grounded by the closing of the static arc contact to the single phase, the grounding switch assembly unit further comprises a power output An operating mechanism that is in driving connection with the arcing contact.
  • the conductive bracket is connected to the stationary end conductor and the corresponding center conductor by a locking bolt.
  • the static arc contact is vertically disposed in an up and down direction, the arcing contact is located on a lower side of the static arc contact, and the operating mechanism is located on a lower side of the movable end assembly.
  • the static end conductor includes a conductive sleeve disposed coaxially with the static arc contact, and the static arc contact is disposed at a lower end of the inner hole of the conductive sleeve through the static arc contact fixing bracket.
  • the grounding switch assembly unit comprises a housing and a mechanism box, wherein the housing is provided with a closed air chamber, and the air chamber wall of the airtight chamber is insulated and sealed by an insulating support structure, and two are electrically connected to the corresponding single phase during use.
  • the conductive chamber is provided with a conductive rod electrically connected to each of the center conductors
  • the sealed gas chamber is further provided with a sulfur hexafluoride arc extinguishing device
  • the sulfur hexafluoride arc extinguishing device comprises a static end assembly and Dynamic end assembly, static end assembly including static end support, a static end conductor disposed on the static end support and a static arc contact electrically connected to the static end conductor, wherein the static end conductor is provided with a conductive rod connection structure respectively fixedly connected to the adjacent ends of the corresponding two conductive rods
  • the end assembly includes a movable end support and a movable arc contact, the movable arc contact and the static arc contact which are grounded by the single-phase ground through closing with the static arc contact, and are arranged horizontally in the left-right direction, and the high-speed grounding switch Also included is an operating mechanism in which the power output is in driving communication with the arcing contact
  • the static end conductor includes a conductive sleeve disposed coaxially with the static arc contact, and the static arc contact is disposed at a right end of the inner hole of the conductive sleeve through a static arc contact fixing bracket, the moving arc The contact is located on the right side of the static arc contact, and the operating mechanism is located on the right side of the movable arc contact.
  • the housing includes a transverse cylindrical body disposed coaxially with the arc-moving contact, and the left and right ends of the lateral cylindrical body are respectively sealed with a left and right cover plate, and the mechanism box is fixed to the right cover
  • the movable end support is fixed on the left side surface of the right cover, and the static end support includes a static end connected between the static end conductor and the movable end support.
  • An insulated support cylinder, wherein the arc-connecting contact coaxial line is disposed in the static-end insulated support cylinder.
  • the movable end support comprises a movable end insulation support cylinder disposed coaxially with the movable arc contact, and the movable end insulation support cylinder is internally provided with an insulating pull rod for realizing a driving connection between the operating mechanism and the movable arc contact.
  • the utility model has the beneficial effects that: when used, the conductive rod of the grounding switch assembly unit of the invention is electrically connected with the corresponding single phase, and when the single-phase grounding short-circuit fault occurs in the running line, an arc is generated, and the single phase that is faulty is called a fault. Phase, the circuit breaker at both ends of the fault phase trips, one arc is extinguished, and the other two phase charged phases continue to supply current to the fault point through electrostatic coupling and electromagnetic coupling, and the submerged current is generated.
  • the operating mechanism drives the moving and static arc contact
  • the brake the fault phase is grounded through the static arc contact and the arc contact, the submerged power arc is extinguished, and then the operating mechanism drives the movable and static arc contacts to open, and the present invention utilizes the dynamic and static in the sulfur hexafluoride arc extinguishing device.
  • the arc contact is grounded to ensure smooth arc extinguishing when the moving and static arc contacts are opened, thus ensuring the success of the subsequent circuit breaker reclosing.
  • Embodiment 1 is a schematic structural view of Embodiment 1 of a grounding switch assembly unit of the present invention, and is also a use state diagram of Embodiment 1 of the high-speed grounding switch of the present invention;
  • Figure 2 is a left side view of Figure 1;
  • FIG. 3 is a schematic view of the cooperation of the grounding switch and the vertical cylinder of FIG. 1;
  • Figure 4 is a schematic structural view of the static end assembly of Figure 3;
  • Figure 5 is a schematic structural view of the movable end assembly of Figure 3;
  • Figure 6 is a schematic structural view of the operating mechanism of Figure 1;
  • Figure 7 is a right side view of Figure 6;
  • Embodiment 8 is a schematic structural view of Embodiment 2 of the grounding switch assembly unit of the present invention, and is also a use state diagram of Embodiment 2 of the high-speed grounding switch of the present invention;
  • Figure 9 is a left side view of Figure 8.
  • Embodiment 10 is a schematic structural view of Embodiment 3 of the grounding switch assembly unit of the present invention, and is also a use state diagram of Embodiment 3 of the high-speed grounding switch of the present invention;
  • Fig. 11 is a cross-sectional view taken along line A-A of Fig. 10;
  • Embodiment 1 of the grounding switch assembling unit is as shown in FIGS. 1 to 7 including a housing 40 including a vertical cylindrical body 42 whose axis extends in the up and down direction and a lateral cylindrical body 43 placed on the left and right sides of the vertical cylindrical body.
  • the opposite ends of the two transverse cylinders are provided with flange connection structures 47 for fixed connection with other cylinders of the GIS equipment.
  • the flange connection structures are covered with a package cover 4.
  • the mechanism housing 7 is provided at the lower end of the vertical cylinder.
  • Each of the transverse cylinders is sealed and equipped with an insulating support structure, and a central conductor for electrically connecting with the corresponding single phase is disposed at a central position of each of the insulating support structures, and the insulating support structure is composed of a basin insulator 2, and each center conductor A conductive rod 44 is electrically connected to the upper portion, and each of the basin insulators is respectively sealed and fixedly connected to the wall of the corresponding transverse cylinder.
  • the upper and lower ends of the vertical cylinder are respectively provided with an upper sealing structure and a lower sealing structure, wherein the upper sealing structure is composed of an inspection opening cover 45 which is mounted on the upper cylinder port, and the lower sealing structure includes the mechanism box
  • the lower support plate 46 of the body connection, the vertical cylinder body and the lower support plate are sealed by a sealing ring, and the upper and lower sealing structures, the basin insulators and the horizontal and vertical cylinders at corresponding positions enclose a closed air chamber, and the conductive rod Located in the closed air chamber, the corresponding housing wall of the closed air chamber is provided with an adsorbent 10, which is filled with sulfur hexafluoride gas, so that the closed air chamber forms a large arc extinguishing chamber.
  • the closed gas chamber is provided with a sulfur hexafluoride arc extinguishing device, thereby realizing a good arc extinguishing function of the sulfur hexafluoride arc extinguishing device.
  • the transverse cylinder at the corresponding position refers to the transverse cylinder between the two basin insulators, and the vertical cylinder at the corresponding position refers to the vertical cylinder between the upper and lower sealing structures.
  • a sulfur hexafluoride arc extinguishing device is disposed in the vertical cylinder of the closed air chamber, and the sulfur hexafluoride arc extinguishing device comprises a static end assembly 1 fixedly assembled with the movable end support and the movable end support respectively
  • the movable end assembly 6 includes a static end conductor 16 disposed on the static end support and a static arc contact 21 electrically connected to the static end conductor, and the static end conductor includes a conductive sleeve disposed coaxially with the vertical cylinder
  • the static arc contact is disposed on the lower end of the inner hole of the conductive sleeve through the coaxial line of the static arc contact fixing bracket 18, and the left and right ends of the conductive sleeve are respectively provided with conductive rods for fixedly connecting with the adjacent ends of the two conductive rods
  • the connecting structure, the conductive rod connecting structure comprises an electrical connecting sleeve for coaxially connecting the conductive rods,
  • the static end support includes an upper insulating support cylinder including a cylindrical portion 14 disposed coaxially with the vertical cylindrical body and an upper cover 20 fixed to an upper end of the cylindrical portion, and an upper end tubular opening of the vertical cylindrical body
  • a ring-shaped mounting step is arranged along the upper surface, the mounting step has an upwardly facing mounting base surface, and the upper cover plate is fixed on the mounting base surface by an upper bolt connection structure, and the inspection cover is located above the upper cover plate, and the static end conductor It is fixed at the lower end of the barrel portion.
  • the dynamic end assembly includes the single-phase grounding arc contact 28 by closing with the static arc contact in a single-phase fault, the arcing contact is located on the lower side of the static arc contact, and the mechanism box is provided with power Output
  • the sulphur hexafluoride arc extinguishing device further comprises a pneumatic cylinder 22 coaxially sleeved on the periphery of the arc-moving contact, and the arc-moving contact and the pneumatic cylinder are electrically conductive through the operating mechanism 8 connected to the arc-moving contact by the insulating rod 27 Connected, the upper end of the pneumatic cylinder is fixed with a spout 29, and the pneumatic cylinder guide is set on the piston barrel 24, and the pneumatic cylinder is connected with the insulating rod, that is, the insulating rod, the pneumatic cylinder, the spout and the arc-moving contact are synchronously operated, and the movable end
  • the assembly further includes a
  • the movable end support cylinder 25 is fixed at the lower end of the movable end support, and the buffer piston 26 is disposed at the lower end of the piston cylinder.
  • the working principle of the sulfur hexafluoride arc extinguishing device is: when the moving and static arc contact are closed, the moving, The static arc contact realizes single-phase grounding. When the moving and static arc contact are opened, the insulating pull rod drives the moving arc contact, the nozzle and the pneumatic cylinder to move downward, and the sulfur hexafluoride gas in the pneumatic cylinder is compressed and the pressure rises. High, high pressure when the spout is open The gas will be discharged outward from the spout to achieve arcing.
  • An upper support plate 50 fixedly connected to the lower insulating support tube is disposed at a lower end of the movable end support tube.
  • the insulating pull rod is passed through a through hole formed in the upper support plate, and the insulating pull rod is sealingly matched with the through hole of the upper support plate.
  • the mechanism box is provided with an operating mechanism 8 connected to the arcing contact through an insulating rod, the operating mechanism is a hydraulic operating mechanism, the operating mechanism comprises a transmission shaft 32, and a crankshaft connecting rod 31 is fixed on the transmission shaft.
  • the connecting rod of the crankshaft connecting rod is hingedly connected with the lower end of the insulating pull rod, and the power output end of the hydraulic driving mechanism is connected with the driving shaft.
  • the hydraulic driving mechanism drives the driving shaft to rotate, so that the crankshaft connecting rod drives the insulating rod to move up and down.
  • Item 30 denotes a crankcase
  • Item 3 denotes an electrical connection member for electrically connecting the conductive rod to the corresponding single phase, the electrical connection member is a sleeve-like structure
  • Item 17 represents an electrical connection support seat to which the power supply connection sleeve is mounted.
  • the grounding switch assembly unit When in use, the grounding switch assembly unit is connected with the cylinder of other GIS equipment, and the conductive rod is electrically connected with the corresponding single phase.
  • a single-phase grounding short-circuit fault occurs on the running line, an arc is generated, and the fault phase two-circuit breaker is generated. Tripping, one arc is extinguished, and the other two phases of the charged phase continue to supply current to the fault point through electrostatic coupling and electromagnetic coupling.
  • the potential supply current is generated, and the dynamic and static arc contacts of the grounding switch installed in the fault phase are closed.
  • Single-phase grounding, the submerged power supply arc is extinguished, and then the moving and static arcing contacts of the grounding switch are opened. Finally, the circuit breaker reclosing is successful, and the line resumes normal charging operation.
  • the static end assembly and the dynamic end assembly are arranged in the vertically arranged vertical cylinder body, which is beneficial to save the occupation area of the assembly unit;
  • the static end assembly is fixed to the housing through the upper insulation support cylinder, and the upper insulation support cylinder is insulated and Supporting function, the upper and lower shields can shield the static end parts to optimize the electric field structure;
  • the dynamic end assembly is fixed to the housing through the lower insulation support cylinder, and the lower insulation support cylinder functions as insulation and support.
  • the upper insulating support cylinder may also be disposed under the static end assembly. At this time, the upper end of the upper insulating support cylinder is fixedly connected with the static end conductor, and the lower end of the upper insulating support cylinder is fixedly connected with the lower support plate.
  • the end assembly is disposed in the inner hole of the upper insulating support tube; the movable and static arc contacts may also be arranged laterally; the conductive rod connection structure may also be a threaded hole disposed on the conductive sleeve, and the conductive rod is directly fixed by bolts during use.
  • the insulation branch The support tube may not be provided.
  • the static end support may be formed by a conductive rod, and the conductive rod functions both to conduct electricity to the static end conductor and to support the static end assembly;
  • the operating mechanism may also be a spring operation.
  • the sulfur hexafluoride arc extinguishing device of the present invention is a gas-pressure arc extinguishing device, of course, the sulfur hexafluoride arc extinguishing device can also adopt a self-energizing gas blow arc extinguishing device;
  • the insulator can also be replaced by an insulating support plate or other insulating support structure;
  • the upper insulating support cylinder can also include only the cylindrical portion, in which case the upper end of the cylindrical portion can be directly fixed to the access cover; of course, the inspection cover can also be omitted.
  • the two conductive rods can also be vertically disposed, and when the transverse cylinder is long, the number of conductive rods on each side of the vertical cylinder is also It can be appropriately increased; the installation step can also be omitted, and the upper cover can be fixed to the inspection port cover or the inner wall of the vertical cylinder by bolts.
  • Embodiment 1 of the high-speed grounding switch is shown in FIGS. 1-7: the high-speed grounding switch includes a sulfur hexafluoride arc extinguishing device and an operating mechanism, a specific structure of the sulfur hexafluoride arc extinguishing device and the operating mechanism, and the above grounding switches
  • the high-speed grounding switch includes a sulfur hexafluoride arc extinguishing device and an operating mechanism, a specific structure of the sulfur hexafluoride arc extinguishing device and the operating mechanism, and the above grounding switches
  • Each of the sulfur hexafluoride arc extinguishing devices described in the assembly unit embodiment 1 is the same as the operating mechanism and will not be described in detail herein.
  • Embodiment 2 of the grounding switch assembly unit is as shown in FIGS. 8-9: including a housing including a vertical cylinder 5 whose axis extends in the up and down direction and a transverse cylinder 4 placed on the left and right sides of the vertical cylinder.
  • the opposite ends of the two transverse cylinders are each provided with a flange connection structure 24 for fixed connection with the cylinder of the circuit breaker and the isolating switch.
  • the mechanism housing 20 is provided at the lower end of the vertical cylinder.
  • Each of the transverse cylinders is sealed and fixed with an insulating support structure, and a center conductor 25 is disposed at a central position of each of the insulating support structures, and the insulating support structure is composed of a basin insulator 2.
  • the upper and lower ends of the vertical cylinder are respectively provided with an upper sealing structure and a lower sealing structure, wherein the upper sealing structure is composed of an inspection port cover 6 attached to the upper port of the vertical cylinder body, and the lower sealing structure comprises a fixing structure
  • the lower support plate 19 at the lower end of the vertical cylinder body, the insulating tie rod and the pull rod through hole on the lower support plate 19 are sealingly fitted, and the lower support plate 19 and the vertical cylindrical body are sealed and sealed by the sealing ring, the upper and lower sealing structures and the basins.
  • the insulator and the transverse and vertical cylinders at corresponding positions enclose a closed air chamber, and the corresponding housing wall of the closed air chamber is provided with an adsorbent, and the closed air chamber is filled with sulfur hexafluoride gas to make the closed
  • the gas chamber forms a large arc extinguishing chamber
  • the sealed gas chamber is provided with a sulfur hexafluoride arc extinguishing device, thereby realizing a good arc extinguishing function of the sulfur hexafluoride arc extinguishing device.
  • the transverse cylinder at the corresponding position refers to the transverse cylinder between the two basin insulators, and the vertical cylinder at the corresponding position refers to the vertical cylinder between the upper and lower sealing structures.
  • the sulfur hexafluoride arc extinguishing device is disposed in the vertical cylinder of the closed gas chamber, and the sulfur hexafluoride arc extinguishing device comprises a static end assembly and a dynamic end assembly, and the static end assembly comprises a static end conductor 7 and a fixed electric connection to the static end.
  • the static arc contact 9 on the conductor is disposed coaxially with the vertical cylinder of the static arc contact, and the static end conductor comprises a conductive sleeve disposed coaxially with the static arc contact, and the static arc contact passes through the static arc contact
  • the fixing bracket 26 is coaxially disposed on the lower end of the inner hole of the conductive sleeve, the left end of the conductive sleeve is provided with a cup-shaped electrical connecting sleeve with an opening to the left, and the left central conductor is provided with a cup-shaped electrical connecting sleeve with an opening to the right, in two
  • the electrical connection sleeve is electrically connected with a conductive rod 3 for electrically connecting the static end conductor and the left central conductor.
  • the right end of the conductive sleeve is fixedly connected with the conductive bracket 8 through the locking bolt.
  • the conductive bracket is a rod-shaped structure and is electrically conductive.
  • the right end of the bracket is fixedly connected to the right central conductor by a locking bolt, and the diameter of the right end of the conductive bracket is larger than the diameter of the left end of the conductive bracket, thereby satisfying the support strength and conducting
  • the bracket functions to electrically connect the static end conductor to the corresponding center conductor, and to support the static end conductor to fix the static end conductor to the housing.
  • the movable end assembly includes the moving arc contact 11 and the movable end bearing grounded by the single-phase grounding by closing with the static arc contact in the single-phase failure, and the movable arc contact is located on the lower side of the static arc contact, the mechanism box
  • the body is provided with an operating mechanism for connecting the power output end to the arc-moving contact through the insulating rod 17
  • the sulfur hexafluoride arc extinguishing device further comprises a pneumatic cylinder 12 coaxially disposed around the arc-moving contact, and the moving arc
  • the contact is electrically connected to the pneumatic cylinder, and the upper end of the pneumatic cylinder is fixed with a spout 10, and the pneumatic cylinder guide is set on the piston cylinder 27.
  • the bottom of the piston cylinder is provided with a one-way breathing valve 15, and the flow direction of the one-way breathing valve is Up and down flow, that is, when the pneumatic cylinder moves upward, the gas can enter the pneumatic cylinder from below.
  • the pneumatic cylinder moves downward, the gas cannot be discharged by the breathing valve, and can only be discharged by the nozzle, and the pneumatic cylinder and the insulating rod are driven.
  • the movable end assembly further comprises a finger-finger 14 which is provided with a finger 13 electrically connected to the pneumatic cylinder, the finger and the ground
  • the current extraction rod 22 is electrically connected, and the ground current is led out.
  • the insulating support ring 21 is disposed on the casing, so that the arc-connecting contact is electrically connected with the grounding terminal, and the working principle of the sulfur hexafluoride arc extinguishing device is: when the moving and static arcing contacts are closed, the moving, The static arc contact realizes single-phase grounding.
  • the insulating pull rod drives the moving arc contact, the nozzle and the pneumatic cylinder to move downward, and the sulfur hexafluoride gas in the pneumatic cylinder is compressed and the pressure rises. High, when the spout is opened, the high-pressure gas will be discharged outward from the spout to achieve arcing.
  • the movable end support comprises a lower insulation support cylinder 16 fixed to the lower end of the finger joint by the upper support plate, the lower insulation support cylinder and the arc-moving contact are coaxially arranged, and the insulating pull rod is supported by the inner hole and the upper support of the lower insulation support cylinder
  • the through hole is opened in the plate, and the mechanism box is provided with an operating mechanism that is driven and connected with the arcing contact through the insulating rod.
  • the operating mechanism is a hydraulic operating mechanism, and the operating mechanism includes a transmission shaft 28 and a transmission shaft.
  • the crankshaft connecting rod is fixed on the upper body, and the connecting rod of the crankshaft connecting rod is hingedly connected with the lower end of the insulating pull rod, and the power output end of the hydraulic driving mechanism is driven and connected with the turning arm 18 on the transmission shaft through a pull rod, and is hydraulically driven in actual use.
  • the mechanism drives the transmission shaft to rotate, so that the crankshaft connecting rod drives the insulating rod to move up and down to realize the opening and closing of the movable and static arc contacts.
  • Item 1 in the figure shows a cup-shaped electrical connection sleeve for electrically connecting the center conductor to the corresponding single phase;
  • Item 23 represents the base of the support mechanism case.
  • the grounding switch assembly unit When in use, the grounding switch assembly unit is connected with the cylinder of other GIS equipment, and the static end conductor is electrically connected with the corresponding single phase.
  • a single phase short circuit fault occurs on the running line, an arc is generated, and the fault phase is broken at both ends.
  • the device trips, one arc is extinguished, and the other two phases of the charged phase continue to supply current to the fault point through electrostatic coupling and electromagnetic coupling.
  • the potential supply current is generated, and the dynamic and static arc contacts of the grounding switch installed in the fault phase are closed.
  • Single-phase grounding is realized, the submerged power supply arc is extinguished, and then the moving and static arcing contacts of the grounding switch are opened. Finally, the circuit breaker reclosing is successful, and the line resumes normal charging operation.
  • the static end assembly and the dynamic end assembly are arranged in the vertically arranged vertical cylinder body, which is beneficial to save the floor space of the assembly unit; the dynamic end assembly is fixed to the housing through the lower insulation support cylinder, and the lower insulation support cylinder is insulated and Supporting role.
  • the left end of the stationary conductor may also pass through a conductive bracket and the left center conductor Electrically connected;
  • the operating mechanism can also be a spring operating mechanism or a pneumatic, electromagnetic operating mechanism, etc.;
  • the sulfur hexafluoride arc extinguishing device of the present invention is a gas-pressure arc extinguishing device, of course, the sulfur hexafluoride arc extinguishing device can also The self-energizing air blow-extinguishing device is adopted;
  • the basin insulator can also be replaced by an insulating support plate or other insulating support structure;
  • the service cover can also be disposed not directly above the upper static end conductor, for example, disposed in the vertical cylinder The sides; the two transverse cylinders can also be placed vertically.
  • Embodiment 2 of the high-speed grounding switch is shown in FIGS. 8-9: the high-speed grounding switch includes a sulfur hexafluoride arc extinguishing device and an operating mechanism, a specific structure of the sulfur hexafluoride arc extinguishing device and the operating mechanism, and the above grounding switches
  • the sulfur hexafluoride arc extinguishing device described in the assembly unit embodiment 2 is the same as the operating mechanism and will not be described in detail herein.
  • Embodiment 3 of the grounding switch assembly unit is as shown in FIGS. 10 to 11 : including a casing including a transverse cylinder 22 whose axis is horizontally arranged in the left-right direction, and the left and right ends of the transverse cylinder are respectively sealed and fitted with the left
  • the cover plate 23 and the right cover plate 10 the right side surface of the right cover plate is fixed with the mechanism box body 17, and the upper and lower side cylinder body walls of the transverse tube body are provided with a pair of mounting holes provided by coaxial lines, and the mounting holes are respectively arranged on the mounting holes
  • Each of the sealed support is provided with an insulating support structure, and a central conductor 24 is disposed at a central position of each of the insulating support structures, and the insulating support structure is composed of an insulating basin, and the conductive rods 2 disposed on the upper and lower sides are respectively fixed on the center conductors, left,
  • the right cover, the insulating support structure and the cylindrical wall of the transverse cylinder
  • the movable end assembly comprises a movable end support and a moving arc contact 26 which is grounded by a single phase in the single phase fault by closing with the static arc contact, the movable arc contact is located on the right side of the static arc contact, and the movable end
  • the support comprises a movable end support 7 arranged in the left and right order, a movable end transition support cylinder 8 and a movable end insulation support cylinder 9, a movable end support 7, a movable end transition support cylinder 8 and a movable end insulation support cylinder 9 and a moving arc contact
  • the movable end insulation support cylinder is fixed on the left side surface of the right cover plate, and the right end of the static end insulation support cylinder is fixedly connected with the movable end support.
  • the sulphur hexafluoride arc extinguishing device further comprises a pneumatic cylinder 12 coaxially arranged around the arcing contact, the arcing contact is electrically connected with the pneumatic cylinder, the left end of the pneumatic cylinder is fixed with a spout 11, and the pneumatic cylinder guiding set is On the piston cylinder, a one-way breathing valve 15 is arranged at the bottom of the cylinder, and the flow direction of the one-way breathing valve is from right to left, that is, when the pneumatic cylinder moves to the left, the gas can enter the pneumatic cylinder from the right, When the pneumatic cylinder moves to the right, the gas cannot be discharged by the breathing valve and can only be discharged by the spout.
  • the pneumatic cylinder is connected with the insulating rod, that is, the insulating rod, the pneumatic cylinder, the spout and
  • the movable arc contact is synchronously operated, and the movable end support is provided with a contact finger 14 electrically connected with the pneumatic cylinder, and the contact finger is electrically connected with the ground current extraction rod 20, and the axis of the grounding drainage rod is extended in the up and down direction, so that the field wiring is convenient.
  • the grounding current extraction rod is disposed on the casing through the insulating support plate 19, thereby realizing electrical connection between the arc-moving contact and the grounding terminal, and the working principle of the sulfur hexafluoride arc-extinguishing device is: when the moving and static arcing contacts are closed Single-phase grounding is realized by moving and static arc contacts.
  • the moving and static arcing contacts are opened, the insulating pull rod drives the moving arc contact, the nozzle and the pneumatic cylinder to move downward, and the sulfur hexafluoride gas in the pneumatic cylinder is Compressed and the pressure rises.
  • the spout is opened, the high-pressure gas will be discharged outward from the spout to achieve arcing.
  • the mechanism box is provided with an operating mechanism 21 for connecting the power output end to the arcing contact through the insulating rod 27, and the insulating rod is passed through the inner hole of the movable end insulating supporting cylinder, and the operating mechanism is a hydraulic operating mechanism.
  • the operating mechanism comprises a transmission shaft, the crankshaft connecting rod is fixed on the transmission shaft, and the connecting rod of the crankshaft connecting rod is hingedly connected with the lower end of the insulating rod, and the power output end of the hydraulic driving mechanism is driven by a pull rod and a rotating arm on the transmission shaft Connection, in actual use, the hydraulic drive mechanism drives the drive shaft to rotate, so that the crankshaft connecting rod drives the insulating rod to move up and down to realize the opening and closing of the movable and static arc contacts.
  • Item 1 in the figure shows a cup-shaped electrical connecting sleeve for electrically connecting the conductive rod to the corresponding single phase.
  • the grounding switch assembly unit is connected with the barrel of other GIS equipment, and the central conductor electrically connected to the conductive rod is electrically connected to the corresponding single phase, and an arc occurs when a single-phase ground short circuit fault occurs in the running line.
  • the circuit breakers at both ends of the fault phase trip, one arc is extinguished, and the other two phases of the charged phase continue to supply current to the fault point through electrostatic coupling and electromagnetic coupling. At this time, the potential supply current is generated, and the grounding switch installed in the fault phase is moved and statically arced.
  • the contact is closed, single-phase grounding is realized, the submerged power supply arc is extinguished, and then the moving and static arcing contacts of the grounding switch are opened, and finally the circuit breaker reclosing is successful, and the line resumes normal charging operation.
  • the pot insulator is used to realize the insulation of the static end conductor and the conductive rod to the housing;
  • the static end insulation support cylinder is used for the insulation between the static end assembly and the dynamic end assembly; and
  • the movable end insulation support cylinder is used to realize the dynamic end assembly and Insulation between the housings;
  • the grounding current is used to insulate the housing from the housing by the insulating support disk; and the insulation between the arc extinguishing chamber and the operating mechanism is achieved by the insulating tie rod.
  • the conductive rod connecting structure may further be a cup-shaped electrical connecting sleeve fixed on the static end conductor, and the conductive rod is directly electrically inserted into the inner hole of the cup-shaped electrical connecting sleeve when used;
  • the sulfur hexafluoride arc extinguishing device in the invention is a gas pressure arc extinguishing device.
  • the sulfur hexafluoride arc extinguishing device can also adopt a self-energizing gas blow arc extinguishing device; the basin insulator can also be insulated by a supporting plate or other insulating supporting structure. Instead; two conductive rods can also be placed vertically.
  • Embodiment 3 of the high-speed grounding switch is shown in FIGS. 10-11: the high-speed grounding switch includes a sulfur hexafluoride arc extinguishing device and an operating mechanism, a specific structure of the sulfur hexafluoride arc extinguishing device and the operating mechanism, and the above grounding switches
  • the sulfur hexafluoride arc extinguishing device described in the assembly unit embodiment 3 is the same as the operating mechanism and will not be described in detail herein.

Abstract

一种输电设备领域中的高速接地开关及其构成的接地开关装配单元。其中,高速接地开关,包括用于在使用时置于相应装配单元的壳体的密闭气室中的六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括的静端导体(7)和电连于静端导体(7)上的静弧触头(9),静端导体(7)上设置有分别用于与相应两个导电杆(3)的相邻端固定电连的导电杆连接结构,动端装配包括通过与所述静弧触头(9)合闸来将相应故障相接地的动弧触头(11),高速接地开关还包括动力输出端与所述动弧触头(11)传动连接的操动机构(8)。使用时将接地开关装配单元的导电杆(3)与对应单相导电连接,当运行线路发生单相接地短路故障时,产生一次电弧,出现故障的单相称为故障相,故障相两端断路器跳闸,一次电弧熄灭,另外两相带电相通过静电耦合和电磁耦合向故障点继续提供电流,潜供电流产生,此时操动机构(8)带动动、静弧触头合闸,故障相通过静弧触头(9)和动弧触头(11)接地,潜供电弧熄灭,随后操动机构(8)带动动、静弧触头分闸,利用六氟化硫灭弧装置中的动、静弧触头接地,可以保证动、静弧触头分闸时顺利灭弧,从而保证后续断路器的重合闸成功。

Description

高速接地开关及其构成的接地开关装配单元 技术领域
本发明涉及输电设备领域中的高速接地开关及其构成的接地开关装配单元。
背景技术
超高压输电线路的故障90%以上是单相接地故障,而单相接地故障中约有80%为“瞬时性”故障,在我国220kV及以上线路大多采用单相重合闸消除单相接地故障,来提高系统的稳定性和供电的可靠性,单相重合闸的成功与否取决于故障点的潜供电弧能否自熄。输电线路中线路发生单相接地故障时,系统自动重合闸装置立即动作,故障相两端的断路器立即断开,短路电流被切断,此时健全相通过静电耦合和电磁耦合继续向故障点提供电流,即潜供电流。
超高压输电线路由于导线多采用8分裂、甚至12分裂,且相间距离较大,线路较长,因此线路对地分布电容及相间分布电容都很大,来自健全相的感应电压产生的潜供电弧燃烧时间较长,使单相自动重合闸的成功率大大降低,对系统的危害很严重,因此,必须采取相应的措施来缩短潜供电弧的熄灭时间。目前,用于熄灭潜供电弧的方法主要有加装高速接地开关和并联电抗器中性点接小电抗两种。我国建设特高压示范线路时采用的是并联电抗器中性点接小电抗,这种方法由于相间与相对地电容可能与电抗器的阻抗构成谐振回路,需要采取预防措施而增加了系统保护的复杂性,同时投资性较大。
发明内容
本发明的目的在于提供一种用于熄灭潜供电流的高速接地开关;本发明的目的还在于提供一种使用该接地开关的接地开关装配单元。
为了解决上述问题,本发明中高速接地开关的技术方案为:
高速接地开关,包括用于在使用时置于相应装配单元的壳体的密闭气室中的六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括的静端导体和电连于静端导体上的静弧触头,静端导体上设置有分别用于与相应两个导电杆的相邻端固定电连的导电杆连接结构,动端装配包括通过与所述静弧触头合闸来将相应故障相接地的动弧触头,高速接地开关还包括动力输出端与所述动弧触头传动连接的操动机构。
所述静端导体包括轴线沿上下方向延伸的导电套,所述静弧触头通过静弧触头固定支架同轴线设置于所述导电套的内孔下端。
所述导电杆连接结构包括轴线与所述静弧触头轴线垂直设置的、供对应导电杆同轴线导电插装的电连接套。
高速接地开关,包括用于在使用时置于相应装配单元的壳体的密闭气室中的六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括静弧触头和使用时用于电连接于相应单相回路中的静端导体,静弧触头固定电连于静端导体上,静端导体上固定电连有导电支架,导电支架远离静端导体的一端设置有用于与所述壳体中的绝缘支撑结构上的中心导体固定电连的中心导体连接结构,动端装配包括动端支座和通过与所述静弧触头合闸来将所述单相接地的动弧触头,高速接地开关还包括动力输出端与所述动弧触头传动连接的操动机构。
静弧触头的轴线沿上下方向延伸设置,动弧触头位于静弧触头的下侧,所述操动机构位于所述动端装配的下方。
所述静端导体包括与所述静弧触头同轴线设置的导电套,所述静弧触头通过静弧触头固定支架设置于所述导电套的内孔下端。
所述的动端支座包括与所述动弧触头同轴线设置的下绝缘支撑套筒,所述下绝缘支撑套筒的下端设置有用于与所述壳体的下端可拆固定连接的下螺栓连接结构,所述下绝缘支撑筒内穿设有实现操动机构与动弧触头传动连接的绝缘拉杆
高速接地开关,包括用于在使用时置于相应装配单元的壳体的密闭气室中的六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括静端支座、设置于静端支座上的静端导体和电连于静端导体上的静弧触头,静端导体上设置有分别用于与相应两个导电杆的相邻端固定电连的导电杆连接结构,动端装配包括动端支座和通过与所述静弧触头合闸来将所述单相接地的动弧触头,动弧触头和静弧触头均沿左右方向水平布置,高速接地开关还包括动力输出端与所述动弧触头传动连接的操动机构。
所述静端导体包括与所述静弧触头同轴线设置的导电套,所述静弧触头通过静弧触头固定支架设置于所述导电套的内孔的右端,所述动弧触头位于所述静弧触头的右侧,所述操动机构位于所述动弧触头的右侧。
所述静端支座包括连接于所述静端导体与动端支座之间的静端绝缘支撑筒,所述动弧触头同轴线穿设于所述静端绝缘支撑筒中。
所述动端支座包括与动弧触头同轴线设置的动端绝缘支撑筒,所述动端绝缘支撑筒内串设有实现操动机构与动弧触头传动连接的绝缘拉杆。
本发明中接地开关装配单元的技术方案为:
接地开关装配单元,包括壳体,壳体内设置有密闭气室,密闭气室的气室壁上通过绝缘支撑结构绝缘密封装配有两个用于在使用时与相应单相导电连接的中心导体,密闭气室中设置有分别与各中心导体导电连接的导电杆,所述密闭气室中还设置有六氟化硫灭弧装 置,六氟化硫灭弧装置包括分别通过静端支座和动端支座相对壳体固定设置的静端装配和动端装配,静端装配包括设置于静端支座上的静端导体和电连于静端导体上的静弧触头,静端导体上设置有分别与两个导电杆的相邻端固定电连的导电杆连接结构,动端装配包括在所述单相故障时通过与所述静弧触头合闸来将所述单相接地的动弧触头,接地开关装配单元还包括动力输出端与所述动弧触头传动连接的操动机构。
所述静端导体包括轴线沿上下方向延伸的导电套,所述静弧触头通过静弧触头固定支架同轴线设置于所述导电套的内孔下端,所述动弧触头位于所述静弧触头下侧,操动机构位于所述动端装配下侧。
所述壳体包括轴线沿上下方向延伸的竖向筒体和设置于竖向筒体两侧的两个横向筒体,各导电杆分别与对应横向筒体同轴线设置,所述动弧触头、静弧触头与所述竖向筒体同轴线设置。
所述竖向筒体的上、下两端分别设置有与竖向筒体的筒体壁密封配合的上、下密封结构,绝缘支撑结构分别设置于各横向筒体中,所述密闭气室由所述上、下密封结构、各绝缘支撑结构以及对应位置处的竖向、横向筒体围成。
接地开关装配单元,包括壳体,壳体内设置有密闭气室,密闭气室的气室壁上通过绝缘支撑结构绝缘密封装配有两个用于在使用时与相应单相导电连接的中心导体,密闭气室中设置有六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括静弧触头和使用时用于通过所述两个中心导体电连接于所述单相回路中的静端导体,静弧触头固定电连于静端导体上,静端导体上固定电连有导电支架,导电支架远离静端导体的一端设置有与对应中心导体固定电连的中心导体连接结构,动端装配包括动端支座和通过与所述静弧触头合闸来将所述单相接地的动弧触头,接地开关装配单元还包括动力输出端与所述动弧触头传动连接的操动机构。
所述导电支架通过锁紧螺栓与静端导体和对应中心导体相连。
所述静弧触头沿上下方向竖直设置,动弧触头位于静弧触头的下侧,操动机构位于动端装配的下侧。
所述静端导体包括与静弧触头同轴线设置的导电套,所述静弧触头通过静弧触头固定支架设置于所述导电套的内孔下端。
接地开关装配单元,包括壳体和机构箱体,壳体内设置有密闭气室,密闭气室的气室壁上通过绝缘支撑结构绝缘密封装配有两个用于在使用时与相应单相导电连接的中心导体,密闭气室中设置有分别与各中心导体导电连接的导电杆,所述密闭气室中还设置有六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括静端支座、 设置于静端支座上的静端导体和电连于静端导体上的静弧触头,静端导体上设置有分别与相应两个导电杆的相邻端固定电连的导电杆连接结构,动端装配包括动端支座和通过与所述静弧触头合闸来将所述单相接地的动弧触头,动弧触头和静弧触头均沿左右方向水平布置,高速接地开关还包括动力输出端与所述动弧触头传动连接的操动机构。
所述静端导体包括与所述静弧触头同轴线设置的导电套,所述静弧触头通过静弧触头固定支架设置于所述导电套的内孔的右端,所述动弧触头位于所述静弧触头的右侧,所述操动机构位于所述动弧触头的右侧。
所述壳体包括与动弧触头同轴线设置的横向筒体,横向筒体的左右两端分别密封盖装有左、右盖板,所述机构箱体固设于所述右盖板的右侧面上,所述动端支座固设于所述右盖板的左侧面上,所述静端支座包括连接于所述静端导体与动端支座之间的静端绝缘支撑筒,所述动弧触头同轴线穿设于所述静端绝缘支撑筒中。
所述动端支座包括与动弧触头同轴线设置的动端绝缘支撑筒,所述动端绝缘支撑筒内串设有实现操动机构与动弧触头传动连接的绝缘拉杆。
本发明的有益效果为:使用时将本发明中接地开关装配单元的导电杆与对应单相导电连接,当运行线路发生单相接地短路故障时,产生一次电弧,出现故障的单相称为故障相,故障相两端断路器跳闸,一次电弧熄灭,另外两相带电相通过静电耦合和电磁耦合向故障点继续提供电流,潜供电流产生,此时操动机构带动动、静弧触头合闸,故障相通过静弧触头和动弧触头接地,潜供电弧熄灭,随后操动机构带动动、静弧触头分闸,本发明利用六氟化硫灭弧装置中的动、静弧触头接地,可以保证动、静弧触头分闸时顺利灭弧,从而保证后续断路器的重合闸成功。
附图说明
图1是本发明中接地开关装配单元的实施例1的结构示意图,同时也是本发明中高速接地开关的实施例1的使用状态图;
图2是图1的左视图;
图3是图1中接地开关与竖向筒体的配合示意图;
图4是图3中静端装配的结构示意图;
图5是图3中动端装配的结构示意图;
图6是图1中操动机构的结构示意图;
图7是图6的右视图;
图8是本发明中接地开关装配单元的实施例2的结构示意图,同时也是本发明中高速接地开关的实施例2的使用状态图;
图9是图8的左视图;
图10是本发明中接地开关装配单元的实施例3的结构示意图,同时也是本发明中高速接地开关的实施例3的使用状态图;
图11是图10的A-A向剖视图。
具体实施方式
接地开关装配单元的实施例1如图1~7所示:包括壳体40,壳体包括轴线沿上下方向延伸的竖向筒体42和置于竖向筒体左右两侧的横向筒体43,两个横向筒体的相对端均设置有用于与GIS设备的其它筒体固定连接的法兰连接结构47,在运输时,各法兰连接结构上均盖装有包装盖板4。竖向筒体的下端设置有机构箱体7。各横向筒体内均密封装配有绝缘支撑结构,各绝缘支撑结构的中心位置处均设置有用于在使用时与相应单相电连接的中心导体,绝缘支撑结构由盆式绝缘子2构成,各中心导体上均电连接有导电杆44,各盆式绝缘子分别与对应横向筒体的筒体壁密封固定连接。竖向筒体的上、下两端分别设置有上密封结构和下密封结构,其中上密封结构由盖装于竖向筒体上端口上的检修口盖45构成,下密封结构包括与机构箱体连接的下支撑板46,竖向筒体与下支撑板通过密封圈密封,上、下密封结构、各盆式绝缘子和对应位置处的横向、竖向筒体围成密闭气室,导电杆位于该密闭气室中,密闭气室相对应的壳体壁上设置有吸附剂10,该封闭气室中充有六氟化硫气体,使该封闭气室形成了一个大的灭弧室,该密闭气室中设置有六氟化硫灭弧装置,并以此实现六氟化硫灭弧装置良好的灭弧功能。对应位置处的横向筒体是指两个盆式绝缘子之间的横向筒体,对应位置处的竖向筒体是指上、下密封结构之间的竖向筒体。六氟化硫灭弧装置设置在该密闭气室的竖向筒体中,六氟化硫灭弧装置包括分别通过静端支座和动端支座相对壳体固定装配的静端装配1和动端装配6,静端装配包括设置于静端支座上的静端导体16和电连于静端导体上的静弧触头21,静端导体包括与竖向筒体同轴线设置的导电套,静弧触头通过静弧触头固定支架18同轴线设置于导电套的内孔下端,导电套的左右两端分别设置有用于与两个导电杆的相邻端固定电连的导电杆连接结构,导电杆连接结构包括供对应导电杆同轴线导电插装的电连接套,两个电连接套同轴线设置,电连接套通过螺栓固定于导电套上,导电套的上下两端分别设置有上屏蔽罩15和下屏蔽罩19。静端支座包括上绝缘支撑筒,上绝缘支撑筒包括与竖向筒体同轴线设置的筒体部分14和固设于筒体部分上端的上盖板20,竖向筒体的上端筒口沿上设置有一圈环形的安装台阶,安装台阶具有朝上的安装基面,上盖板通过上螺栓连接结构固装于该安装基面上,检修口盖位于上盖板的上方,静端导体固设于筒体部分下端。动端装配包括在单相故障时通过与静弧触头合闸来将所述单相接地的动弧触头28,动弧触头位于静弧触头下侧,机构箱体中设置有动力输出端 通过绝缘拉杆27与动弧触头传动连接的操动机构8,六氟化硫灭弧装置还包括同轴线套设于动弧触头外围的气压缸22,动弧触头与气压缸导电连接,气压缸的上端固设有喷口29,气压缸导向套装于活塞筒24上,气压缸与绝缘拉杆传动连接,也就是说绝缘拉杆、气压缸、喷口和动弧触头同步动作,动端装配还包括动端支撑,动端支撑上设置有与气压缸导电连接的触指23,触指通过动端支撑与接地端子装配9电连接,从而实现动弧触头与接地端子装配电连接,动端支撑的下端固设有动端支撑筒25,活塞筒的下端设置有缓冲活塞26,六氟化硫灭弧装置的工作原理为:动、静弧触头合闸时,通过动、静弧触头实现单相接地,在动、静弧触头分闸时,绝缘拉杆带动动弧触头、喷口、气压缸向下移动,气压缸内的六氟化硫气体被压缩而压力升高,当喷口打开时,高压力的气体将由喷口处向外排出,实现吹弧作用。在动端支撑筒的下端设置有与下绝缘支撑筒固定连接的上支撑板50,绝缘拉杆由上支撑板上开设的通孔穿过,绝缘拉杆与上支撑板上的通孔密封滑动配合,机构箱中设置有通过绝缘拉杆与动弧触头传动连接的操动机构8,操动机构为一个液压操动机构,操动机构包括传动轴32,传动轴上固设有曲轴连杆31,曲轴连杆的连杆与绝缘拉杆的下端铰接相连,液压驱动机构的动力输出端与传动轴传动连接,在实际使用时,液压驱动机构驱动传动轴转动,从而使曲轴连杆带动绝缘拉杆上下运动,以实现动、静弧触头的合分闸。项30表示曲轴箱;项3表示实现导电杆与相应单相电连的电连接件,电连接件为一个套状结构;项17表示供电连接套安装的电连接支撑座。
使用时将本接地开关装配单元与GIS其它设备的筒体连接起来,并使导电杆与对应单相导电连接,在运行线路发生单相接地短路故障时,产生一次电弧,故障相两端断路器跳闸,一次电弧熄灭,另外两相带电相通过静电耦合和电磁耦合继续向故障点提供电流,此时潜供电流产生,装设于故障相的接地开关的动、静弧触头合闸,实现单相接地,潜供电弧熄灭,随后接地开关的动、静弧触头分闸,最后断路器重合闸成功,线路恢复正常带电运行。
静端装配和动端装配设置于竖直设置的竖向筒体中,有利于节省装配单元的占地面积;静端装配通过上绝缘支撑筒与壳体固定,上绝缘支撑筒起到绝缘和支撑作用,上、下屏蔽罩可屏蔽静端零部件优化电场结构;动端装配通过下绝缘支撑筒与壳体固定,下绝缘支撑筒起到绝缘和支撑作用。
在本发明的其它实施例中:上绝缘支撑筒还可以设置于静端装配下方,此时上绝缘支撑筒的上端与静端导体固定连接,上绝缘支撑筒的下端与下支撑板固定连接,动端装配则设置于上绝缘支撑筒的内孔中;动、静弧触头还可以横向布置;导电杆连接结构也可以是设置于导电套上的螺纹孔,使用时通过螺栓直接将导电杆固定于导电套上;当然上绝缘支 撑筒也可以不设,此时静端支座可以由导电杆构成,导电杆既起着向静端导体导电的作用,又起着支撑静端装配的作用;操动机构也可以是弹簧操动机构或气动、电磁操动机构等;本发明中的六氟化硫灭弧装置为压气式灭弧,当然六氟化硫灭弧装置还可以采用自能式气吹灭弧装置;盆式绝缘子还可以被绝缘支撑板或其它绝缘支撑结构代替;上绝缘支撑筒也可仅包括筒体部分,此时可以直接将筒体部分上端固定于检修口盖上;当然检修口盖也可以不设置于上绝缘支撑筒的正上方,比如说设置于竖向筒体的侧面;两个导电杆还可以垂直设置,当横向筒体较长时,竖向筒体每侧的导电杆的个数还可以适当的增加;安装台阶也可以不设,此时可以将上盖板通过螺栓固定于检修口盖或竖向筒体的内壁上。
高速接地开关的实施例1如图1~7所示:高速接地开关包括六氟化硫灭弧装置和操动机构,六氟化硫灭弧装置和操动机构的具体结构与上述各接地开关装配单元实施例1中所述的各六氟化硫灭弧装置和操动机构相同,在此不再详述。
接地开关装配单元的实施例2如图8~9所示:包括壳体,壳体包括轴线沿上下方向延伸的竖向筒体5和置于竖向筒体左右两侧的横向筒体4,两个横向筒体的相对端均设置有用于与断路器及隔离开关的筒体固定连接的法兰连接结构24。竖向筒体的下端设置有机构箱体20。各横向筒体内均密封固连有绝缘支撑结构,各绝缘支撑结构的中心位置处均设置有中心导体25,绝缘支撑结构由盆式绝缘子2构成。竖向筒体的上、下两端分别设置有上密封结构和下密封结构,其中上密封结构由盖装于竖向筒体上端口上的检修口盖6构成,下密封结构包括固设于竖向筒体下端的下支撑板19,绝缘拉杆与下支撑板19上的拉杆通孔密封滑动配合,下支撑板19与竖向筒体通过密封圈密封配合,上、下密封结构、各盆式绝缘子和对应位置处的横向、竖向筒体围成密闭气室,密闭气室相对应的壳体壁上设置有吸附剂,该封闭气室中充有六氟化硫气体,使该封闭气室形成了一个大的灭弧室,该密闭气室中设置有六氟化硫灭弧装置,并以此实现六氟化硫灭弧装置良好的灭弧功能。对应位置处的横向筒体是指两个盆式绝缘子之间的横向筒体,对应位置处的竖向筒体是指上、下密封结构之间的竖向筒体。六氟化硫灭弧装置设置在该密闭气室的竖向筒体中,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括静端导体7和固定电连于静端导体上的静弧触头9,静弧触头的与竖向筒体同轴线设置,静端导体包括与静弧触头同轴线设置的导电套,静弧触头通过静弧触头固定支架26同轴线设置于导电套的内孔下端,导电套的左端设置有开口朝左的杯形电连接套,左侧中心导体上设置有开口朝右的杯形电连接套,在两个电连接套中插装电连有实现静端导体与左侧中心导体电连的导电杆3,导电套的右端通过锁紧螺栓固定电连有导电支架8,导电支架为杆形结构,导电支架的右端通过锁紧螺栓与右侧中心导体固定电连,导电支架的右端直径大于导电支架左端的直径,以此满足支撑强度,导电 支架既起着使静端导体与对应中心导体电连接的作用,又起到支撑静端导体使静端导体相对壳体固定的作用。动端装配包括在单相故障时通过与静弧触头合闸来将所述单相接地的动弧触头11和动端支座,动弧触头位于静弧触头下侧,机构箱体中设置有动力输出端通过绝缘拉杆17与动弧触头传动连接的操动机构,六氟化硫灭弧装置还包括同轴线套设于动弧触头外围的气压缸12,动弧触头与气压缸导电连接,气压缸的上端固设有喷口10,气压缸导向套装于活塞筒27上,活塞筒的底部设置有单向呼吸阀15,单向呼吸阀的通流方向是由上至下通流,即在气压缸朝上运动时,气体可由下进入气压缸中,在气压缸朝下移动时,气体不能由呼吸阀排出,只能由喷口排出,气压缸与绝缘拉杆传动连接,也就是说绝缘拉杆、气压缸、喷口和动弧触头同步动作,动端装配还包括触指座14,触指座上设置有与气压缸导电连接的触指13,触指与接地电流引出棒22电连接,接地电流引出棒通过绝缘支撑环21设置于壳体上,从而实现动弧触头与接地端子装配电连接,六氟化硫灭弧装置的工作原理为:动、静弧触头合闸时,通过动、静弧触头实现单相接地,在动、静弧触头分闸时,绝缘拉杆带动动弧触头、喷口、气压缸向下移动,气压缸内的六氟化硫气体被压缩而压力升高,当喷口打开时,高压力的气体将由喷口处向外排出,实现吹弧作用。动端支座包括通过上支撑板固装于触指座下端的下绝缘支撑筒16,下绝缘支撑筒与动弧触头同轴线设置,绝缘拉杆由下绝缘支撑筒的内孔和上支撑板上开设的通孔中穿过,机构箱中设置有通过绝缘拉杆与动弧触头传动连接的操动机构,操动机构为一个液压操动机构,操动机构包括传动轴28,传动轴上固设有曲轴连杆,曲轴连杆的连杆与绝缘拉杆的下端铰接相连,液压驱动机构的动力输出端通过一拉杆与传动轴上的拐臂18传动连接,在实际使用时,液压驱动机构驱动传动轴转动,从而使曲轴连杆带动绝缘拉杆上下运动,以实现动、静弧触头的合分闸。图中项1表示用于实现中心导体与相应单相电连接的杯形电连接套;项23表示支撑机构箱体的底座。
使用时将本接地开关装配单元与GIS其它设备的筒体连接起来,并使静端导体与对应单相导电连接,在运行线路发生单相接地短路故障时,产生一次电弧,故障相两端断路器跳闸,一次电弧熄灭,另外两相带电相通过静电耦合和电磁耦合继续向故障点提供电流,此时潜供电流产生,装设于故障相的接地开关的动、静弧触头合闸,实现单相接地,潜供电弧熄灭,随后接地开关的动、静弧触头分闸,最后断路器重合闸成功,线路恢复正常带电运行。
静端装配和动端装配设置于竖直设置的竖向筒体中,有利于节省装配单元的占地面积;动端装配通过下绝缘支撑筒与壳体固定,下绝缘支撑筒起到绝缘和支撑作用。
在本发明的其它实施例中:静端导体的左端也可以通过一个导电支架与左侧中心导体 电连起来;操动机构也可以是弹簧操动机构或气动、电磁操动机构等;本发明中的六氟化硫灭弧装置为压气式灭弧,当然六氟化硫灭弧装置还可以采用自能式气吹灭弧装置;盆式绝缘子还可以被绝缘支撑板或其它绝缘支撑结构代替;检修口盖也可以不设置于上静端导体的正上方,比如说设置于竖向筒体的侧面;两个横向筒体还可以垂直设置。
高速接地开关的实施例2如图8~9所示:高速接地开关包括六氟化硫灭弧装置和操动机构,六氟化硫灭弧装置和操动机构的具体结构与上述各接地开关装配单元实施例2中所述的六氟化硫灭弧装置和操动机构相同,在此不再详述。
接地开关装配单元的实施例3如图10~11所示:包括壳体,壳体包括轴线沿左右方向水平布置的横向筒体22,横向筒体的左、右两端分别密封盖装有左盖板23和右盖板10,右盖板的右侧面上固装有机构箱体17,横向筒体的上下侧筒体壁上开有一对同轴线设置的安装孔,各安装孔上均密封装配有绝缘支撑结构,在各绝缘支撑结构的中心位置处均设置有中心导体24,绝缘支撑结构由绝缘盆子构成,在各中心导体上均固装有上下设置的导电杆2,左、右盖板、各绝缘支撑结构和横向筒体的筒体壁围成一个密闭气室,封闭气室中充有六氟化硫气体,使该封闭气室形成了一个大的灭弧室,该密闭气室中设置有六氟化硫灭弧装置,并以此实现六氟化硫灭弧装置良好的灭弧功能,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括静端支座、设置于静端支座上的静端导体和电连于静端导体上的静弧触头5,静弧触头与横向筒体同轴线设置,静端导体包括与静弧触头同轴线设置的导电套1,静弧触头通过静弧触头固定支架25同轴线设置于导电套的内孔右端,导电套的上下两端分别设置有用于与两个导电杆的相邻端固定电连的导电杆连接结构,导电杆连接结构包括与对应导电杆的相应端面对接电连的连接平面,连接平面上设置有供相应连接螺栓穿装而实现对应导电杆与静端导体固定连接的螺纹孔,通过连接螺栓将右侧导电杆固定于导电套上,这有助于提高整体的结构强度,静端支座包括与静弧触头同轴线设置的静端绝缘支撑筒6。动端装配包括动端支座和在单相故障时通过与静弧触头合闸来将所述单相接地的动弧触头26,动弧触头位于静弧触头右侧,动端支座包括左右顺序设置的动端支撑7、动端过渡支撑筒8和动端绝缘支撑筒9,动端支撑7、动端过渡支撑筒8和动端绝缘支撑筒9均与动弧触头同轴线设置,动端绝缘支撑筒固装于右盖板的左侧面上,静端绝缘支撑筒的右端与动端支撑固定连接。六氟化硫灭弧装置还包括同轴线套设于动弧触头外围的气压缸12,动弧触头与气压缸导电连接,气压缸的左端固设有喷口11,气压缸导向套装于活塞筒上,活塞筒的底部设置有单向呼吸阀15,单向呼吸阀的通流方向是由右至左通流,即在气压缸朝左运动时,气体可由右进入气压缸中,在气压缸朝右移动时,气体不能由呼吸阀排出,只能由喷口排出,气压缸与绝缘拉杆传动连接,也就是说绝缘拉杆、气压缸、喷口和 动弧触头同步动作,动端支撑上设置有与气压缸导电连接的触指14,触指与接地电流引出棒电连接20,接地引流棒的轴线沿上下方向延伸设置,这样方便现场接线,接地电流引出棒通过绝缘支撑盘19设置于壳体上,从而实现动弧触头与接地端子装配电连接,六氟化硫灭弧装置的工作原理为:动、静弧触头合闸时,通过动、静弧触头实现单相接地,在动、静弧触头分闸时,绝缘拉杆带动动弧触头、喷口、气压缸向下移动,气压缸内的六氟化硫气体被压缩而压力升高,当喷口打开时,高压力的气体将由喷口处向外排出,实现吹弧作用。
机构箱体中设置有动力输出端通过绝缘拉杆27与动弧触头传动连接的操动机构21,绝缘拉杆由动端绝缘支撑筒的内孔中穿过,操动机构为一个液压操动机构,操动机构包括传动轴,传动轴上固设有曲轴连杆,曲轴连杆的连杆与绝缘拉杆的下端铰接相连,液压驱动机构的动力输出端通过一拉杆与传动轴上的拐臂传动连接,在实际使用时,液压驱动机构驱动传动轴转动,从而使曲轴连杆带动绝缘拉杆上下运动,以实现动、静弧触头的合分闸。图中项1表示用于实现导电杆与相应单相电连接的杯形电连接套。
使用时将本接地开关装配单元与GIS其它设备的筒体连接起来,并使与导电杆电连的中心导体与对应单相导电连接,在运行线路发生单相接地短路故障时,产生一次电弧,故障相两端断路器跳闸,一次电弧熄灭,另外两相带电相通过静电耦合和电磁耦合继续向故障点提供电流,此时潜供电流产生,装设于故障相的接地开关的动、静弧触头合闸,实现单相接地,潜供电弧熄灭,随后接地开关的动、静弧触头分闸,最后断路器重合闸成功,线路恢复正常带电运行。
本发明中利用盆式绝缘子实现静端导体及导电杆对壳体的绝缘;利用静端绝缘支承筒实现静端装配与动端装配之间的绝缘;利用动端绝缘支承筒实现动端装配与壳体之间的绝缘;利用绝缘支撑盘实现接地电流引出棒对壳体的绝缘;利用绝缘拉杆实现灭弧室与操动机构之间的绝缘。
在本发明的其它实施例中:导电杆连接结构还可以是固设于静端导体上的杯形电连接套,使用时将导电杆直接导电插装于杯形电连接套的内孔中;本发明中的六氟化硫灭弧装置为压气式灭弧,当然六氟化硫灭弧装置还可以采用自能式气吹灭弧装置;盆式绝缘子还可以被绝缘支撑板或其它绝缘支撑结构代替;两个导电杆还可以垂直设置。
高速接地开关的实施例3如图10~11所示:高速接地开关包括六氟化硫灭弧装置和操动机构,六氟化硫灭弧装置和操动机构的具体结构与上述各接地开关装配单元实施例3中所述的六氟化硫灭弧装置和操动机构相同,在此不再详述。

Claims (23)

  1. 高速接地开关,其特征在于:包括用于在使用时置于相应装配单元的壳体的密闭气室中的六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括的静端导体和电连于静端导体上的静弧触头,静端导体上设置有分别用于与相应两个导电杆的相邻端固定电连的导电杆连接结构,动端装配包括通过与所述静弧触头合闸来将相应故障相接地的动弧触头,高速接地开关还包括动力输出端与所述动弧触头传动连接的操动机构。
  2. 根据权利要求1所述的高速接地开关,其特征在于:所述静端导体包括轴线沿上下方向延伸的导电套,所述静弧触头通过静弧触头固定支架同轴线设置于所述导电套的内孔下端。
  3. 根据权利要求1或2所述的高速接地开关,其特征在于:所述导电杆连接结构包括轴线与所述静弧触头轴线垂直设置的、供对应导电杆同轴线导电插装的电连接套。
  4. 高速接地开关,其特征在于:包括用于在使用时置于相应装配单元的壳体的密闭气室中的六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括静弧触头和使用时用于电连接于相应单相回路中的静端导体,静弧触头固定电连于静端导体上,静端导体上固定电连有导电支架,导电支架远离静端导体的一端设置有用于与所述壳体中的绝缘支撑结构上的中心导体固定电连的中心导体连接结构,动端装配包括动端支座和通过与所述静弧触头合闸来将所述单相接地的动弧触头,高速接地开关还包括动力输出端与所述动弧触头传动连接的操动机构。
  5. 根据权利要求4所述的高速接地开关,其特征在于:静弧触头的轴线沿上下方向延伸设置,动弧触头位于静弧触头的下侧,所述操动机构位于所述动端装配的下方。
  6. 根据权利要求5所述的高速接地开关,其特征在于:所述静端导体包括与所述静弧触头同轴线设置的导电套,所述静弧触头通过静弧触头固定支架设置于所述导电套的内孔下端。
  7. 根据权利要求6所述的高速接地开关,其特征在于:所述的动端支座包括与所述动弧触头同轴线设置的下绝缘支撑套筒,所述下绝缘支撑套筒的下端设置有用于与所述壳体的下端可拆固定连接的下螺栓连接结构,所述下绝缘支撑筒内穿设有实现操动机构与动弧触头传动连接的绝缘拉杆。
  8. 高速接地开关,其特征在于:包括用于在使用时置于相应装配单元的壳体的密闭气室中的六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括静端支座、设置于静端支座上的静端导体和电连于静端导体上的静弧触头,静端导体上设置有分别用于与相应两个导电杆的相邻端固定电连的导电杆连接结构,动端装配包括动端支座和通过与所述静弧触头合闸来将所述单相接地的动弧触头,动弧触头和静弧触头均沿左右方向水平布置,高速接地开关还包括动力输出端与所述动弧触头传动连接的操动机构。
  9. 根据权利要求8所述的高速接地开关,其特征在于:所述静端导体包括与所述静弧触头同轴线设置的导电套,所述静弧触头通过静弧触头固定支架设置于所述导电套的内孔的右端,所述动弧触头位于所述静弧触头的右侧,所述操动机构位于所述动弧触头的右侧。
  10. 根据权利要求8所述的高速接地开关,其特征在于:所述静端支座包括连接于所述静端导体与动端支座之间的静端绝缘支撑筒,所述动弧触头同轴线穿设于所述静端绝缘支撑筒中。
  11. 根据权利要求10所述的高速接地开关,其特征在于:所述动端支座包括与动弧触头同轴线设置的动端绝缘支撑筒,所述动端绝缘支撑筒内串设有实现操动机构与动弧触头传动连接的绝缘拉杆。
  12. 接地开关装配单元,其特征在于:包括壳体,壳体内设置有密闭气室,密闭气室的气室壁上通过绝缘支撑结构绝缘密封装配有两个用于在使用时与相应单相导电连接的中心导体,密闭气室中设置有分别与各中心导体导电连接的导电杆,所述密闭气室中还设置有六氟化硫灭弧装置,六氟化硫灭弧装置包括分别通过静端支座和动端支座相对壳体固定设置的静端装配和动端装配,静端装配包括设置于静端支座上的静端导体和电连于静端导体上的静弧触头,静端导体上设置有分别与两个导电杆的相邻端固定电连的导电杆连接结构,动端装配包括在所述单相故障时通过与所述静弧触头合闸来将所述单相接地的动弧触头,接地开关装配单元还包括动力输出端与所述动弧触头传动连接的操动机构。
  13. 根据权利要求12所述的接地开关装配单元,其特征在于:所述静端导体包括轴线沿上下方向延伸的导电套,所述静弧触头通过静弧触头固定支架同轴线设置于所述导电套的内孔下端,所述动弧触头位于所述静弧触头下侧,操动机构位于所述动端装配下侧。
  14. 根据权利要求13所述的接地开关装配单元,其特征在于:所述壳体包括 轴线沿上下方向延伸的竖向筒体和设置于竖向筒体两侧的两个横向筒体,各导电杆分别与对应横向筒体同轴线设置,所述动弧触头、静弧触头与所述竖向筒体同轴线设置。
  15. 根据权利要求13所述的接地开关装配单元,其特征在于:所述竖向筒体的上、下两端分别设置有与竖向筒体的筒体壁密封配合的上、下密封结构,绝缘支撑结构分别设置于各横向筒体中,所述密闭气室由所述上、下密封结构、各绝缘支撑结构以及对应位置处的竖向、横向筒体围成。
  16. 接地开关装配单元,其特征在于:包括壳体,壳体内设置有密闭气室,密闭气室的气室壁上通过绝缘支撑结构绝缘密封装配有两个用于在使用时与相应单相导电连接的中心导体,密闭气室中设置有六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括静弧触头和使用时用于通过所述两个中心导体电连接于所述单相回路中的静端导体,静弧触头固定电连于静端导体上,静端导体上固定电连有导电支架,导电支架远离静端导体的一端设置有与对应中心导体固定电连的中心导体连接结构,动端装配包括动端支座和通过与所述静弧触头合闸来将所述单相接地的动弧触头,接地开关装配单元还包括动力输出端与所述动弧触头传动连接的操动机构。
  17. 根据权利要求16所述的接地开关装配单元,其特征在于:所述导电支架通过锁紧螺栓与静端导体和对应中心导体相连。
  18. 根据权利要求16所述的接地开关装配单元,其特征在于:所述静弧触头沿上下方向竖直设置,动弧触头位于静弧触头的下侧,操动机构位于动端装配的下侧。
  19. 根据权利要求18所述的接地开关装配单元,其特征在于:所述静端导体包括与静弧触头同轴线设置的导电套,所述静弧触头通过静弧触头固定支架设置于所述导电套的内孔下端。
  20. 接地开关装配单元,其特征在于:包括壳体和机构箱体,壳体内设置有密闭气室,密闭气室的气室壁上通过绝缘支撑结构绝缘密封装配有两个用于在使用时与相应单相导电连接的中心导体,密闭气室中设置有分别与各中心导体导电连接的导电杆,所述密闭气室中还设置有六氟化硫灭弧装置,六氟化硫灭弧装置包括静端装配和动端装配,静端装配包括静端支座、设置于静端支座上的静端导体和电连于静端导体上的静弧触头,静端导体上设置有分别与相应两个导电杆的相邻端固定电连的导电杆连接结构,动端装配包括动端支座和通过与所述静弧触头合闸来将所述 单相接地的动弧触头,动弧触头和静弧触头均沿左右方向水平布置,高速接地开关还包括动力输出端与所述动弧触头传动连接的操动机构。
  21. 根据权利要求20所述的接地开关装配单元,其特征在于:所述静端导体包括与所述静弧触头同轴线设置的导电套,所述静弧触头通过静弧触头固定支架设置于所述导电套的内孔的右端,所述动弧触头位于所述静弧触头的右侧,所述操动机构位于所述动弧触头的右侧。
  22. 根据权利要求20所述的接地开关装配单元,其特征在于:所述壳体包括与动弧触头同轴线设置的横向筒体,横向筒体的左右两端分别密封盖装有左、右盖板,所述机构箱体固设于所述右盖板的右侧面上,所述动端支座固设于所述右盖板的左侧面上,所述静端支座包括连接于所述静端导体与动端支座之间的静端绝缘支撑筒,所述动弧触头同轴线穿设于所述静端绝缘支撑筒中。
  23. 根据权利要求22所述的接地开关装配单元,其特征在于:所述动端支座包括与动弧触头同轴线设置的动端绝缘支撑筒,所述动端绝缘支撑筒内串设有实现操动机构与动弧触头传动连接的绝缘拉杆。
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CN107508237A (zh) * 2017-02-22 2017-12-22 中国能源建设集团南京线路器材有限公司 上合式地线融冰自动接线装置
CN107508237B (zh) * 2017-02-22 2023-06-27 中国能源建设集团南京线路器材有限公司 上合式地线融冰自动接线装置
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CN110060904A (zh) * 2019-06-06 2019-07-26 现代重工(中国)电气有限公司 一种新型隔离开关触头结构
CN113161193A (zh) * 2020-11-27 2021-07-23 平高集团有限公司 一种真空断路器及真空灭弧室
CN113161193B (zh) * 2020-11-27 2022-08-30 平高集团有限公司 一种真空断路器及真空灭弧室
CN112582204A (zh) * 2020-12-04 2021-03-30 河南平高通用电气有限公司 充气柜用灭弧室单元
CN113192778A (zh) * 2021-05-12 2021-07-30 上海西门子高压开关有限公司 用于灭弧室的热气流排气装置、灭弧室以及气体绝缘开关
CN113192778B (zh) * 2021-05-12 2022-05-27 上海西门子高压开关有限公司 用于灭弧室的热气流排气装置、灭弧室以及气体绝缘开关
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CN114420480B (zh) * 2022-01-06 2023-12-08 平高集团有限公司 具有隔离断口的高压开关设备及其动触头组件

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