CN204102789U - Piston type isolating switch - Google Patents

Piston type isolating switch Download PDF

Info

Publication number
CN204102789U
CN204102789U CN201420526437.4U CN201420526437U CN204102789U CN 204102789 U CN204102789 U CN 204102789U CN 201420526437 U CN201420526437 U CN 201420526437U CN 204102789 U CN204102789 U CN 204102789U
Authority
CN
China
Prior art keywords
connection block
watchband
isolating switch
shaped contactor
feeler lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420526437.4U
Other languages
Chinese (zh)
Inventor
吴德祥
刘晓颖
王竞如
沈奕成
吴梦罕
王华明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO YAOHUA ELECTRIC TECHNOLOGY Co Ltd
Original Assignee
NINGBO YAOHUA ELECTRIC TECHNOLOGY Co Ltd
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.)
Filing date
Publication date
Application filed by NINGBO YAOHUA ELECTRIC TECHNOLOGY Co Ltd filed Critical NINGBO YAOHUA ELECTRIC TECHNOLOGY Co Ltd
Priority to CN201420526437.4U priority Critical patent/CN204102789U/en
Application granted granted Critical
Publication of CN204102789U publication Critical patent/CN204102789U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A kind of piston type isolating switch, described isolating switch comprises pedestal and movable feeler lever, the plunger shaft for described movable feeler lever action is had in described pedestal, described movable feeler lever installs conducting ring near circuit breaker side, the movable feeler lever of described conducting ring both sides installs left sealing ring and right sealing ring respectively, wherein, left sealing ring is near vacuum interrupter side, and the outer wall both sides of described conducting ring arrange left watchband-shaped contactor and right watchband-shaped contactor respectively; Described plunger shaft installs contact Connection Block near circuit breaker side, and isolation Connection Block is installed at the middle part of described plunger shaft, and the left watchband-shaped contactor of Distance geometry between described contact Connection Block with isolation Connection Block is equal with the distance between right watchband-shaped contactor.The piston type isolating switch that the utility model provides a kind of simplified structure, effective minimizing takies volume, the feature of environmental protection is good.

Description

Piston type isolating switch
Technical field
The utility model relates to a kind of isolating switch.
Background technology
Current power distribution system equipment is generally made up of isolating switch, vacuum interrupter, earthed switch etc., with bus, these autonomous devices are connected to form electric power system, its isolating switch, earthed switch are generally adopt the direct acting of guillotine type or rotation process mode to complete circuit and connection and to cut-off, and dielectric mainly adopts air, SF6 sulfur hexafluoride gas etc.Gas-insulated performance is best with SF6 sulphur hexafluoride performance, but SF6 sulfur hexafluoride gas is also one of six kinds of greenhouse gases of generally acknowledging in the world, for 23900 times of CO2 greenhouse effect, and also can decompose generation toxic gas when electric current cut-offs, manufacture and even also injuring in maintenance process the health of people.With the apparatus insulated poor-performing of air as insulated switch, need larger isolation fracture, the equipment volume therefore produced is comparatively large, and floor space is large, and by the impact of environment for use, the factors of instability are more, and are not suitable for for outdoor environment.Meanwhile, for reducing greenhouse gas emission, SF6 switchgear needs to reclaim SF6 gas when overhauling, and adds gas recovery unit and cost of labor.Ring main unit and switch cubicle are the primary power source power supply units using the combination of this equipment, and primary power source to this equipment, is transported to user through isolating switch, circuit breaker or combined electrical apparatus through cable transmission.Earthed switch side ensures personal safety use for during maintenance, isolating switch also have upper isolation and lower isolation point, be equally all safeguard protection effect.Because this several switch has respective volume, total volume that combines is comparatively large, and the volume of whole equipment is increased, and manufacturing cost improves.Because equipment separate connection loop increases, total loop resistance is increased, and the electric energy that system consumes on the device is also without many.Isolating switch, the fracture of earthed switch in these dielectrics are apart from relatively large in addition, make the size of whole switch also become large.
Ring main unit is widely used in recent years, is because ring main unit structure is simple, reliable and safety, and maintenance capacity is very little, and operating cost is low.The ring main unit of current manufacture mainly contains gas-insulated, and based on SF6 sulfur hexafluoride gas, some is the gas of SF6 sulphur hexafluoride and other gas and vapor permeation.The research and development of solid insulation ring main unit in recent years and application are obtaining the attention of each side, also have made some progress, be generally by coated for the rear solid dielectric insulations of combination such as vacuum interrupter, isolating switch, earthed switch, the main bus bar one that is packaged into, but the insulation of the fracture of isolating switch, earthed switch is still use air insulation.The length simultaneously operating the insulated tension pole of vacuum interrupter also has influence on the size of this product, makes physical dimension still larger like this.Therefore designed ring main unit size is comparatively large, particularly in the impact of short transverse.Ring main unit is generally used for avenue, residential quarter, and large size floor space is large, and particularly tall and big size becomes a kind of visual pollution, makes troubles to the trip of people.Fewer and feweri in spendable soil, the environmental consciousness of people is more and more stronger, so more needs us to provide the equipment for power transmission and distribution that a kind of volume is less.
The defect that existing isolating switch exists: complex structure, to take volume larger.
Summary of the invention
In order to overcome the complex structure of existing isolating switch under ring main unit environment for use, take the larger deficiency of volume, the utility model provides a kind of simplified structure, effectively reduces the piston type isolating switch taking volume.
The utility model solves the technical scheme that its technical problem adopts:
A kind of piston type isolating switch, described isolating switch comprises pedestal and movable feeler lever, the plunger shaft for described movable feeler lever action is had in described pedestal, described movable feeler lever installs conducting ring near circuit breaker side, the movable feeler lever of described conducting ring both sides installs left sealing ring and right sealing ring respectively, wherein, left sealing ring is near vacuum interrupter side, and the outer wall both sides of described conducting ring arrange left watchband-shaped contactor and right watchband-shaped contactor respectively; Described plunger shaft installs contact Connection Block near circuit breaker side, and isolation Connection Block is installed at the middle part of described plunger shaft, and the left watchband-shaped contactor of Distance geometry between described contact Connection Block with isolation Connection Block is equal with the distance between right watchband-shaped contactor.
Further, described contact Connection Block is moving contact Connection Block, and the loop connecting end inwall of described moving contact Connection Block installs moving contact watchband-shaped contactor, and the moving contact of circuit breaker slides up and down to be sleeved in described moving contact watchband-shaped contactor.
Further again, described plunger shaft installs grounding base away from circuit breaker side, and described isolation Connection Block is equal with the distance between right watchband-shaped contactor with the left watchband-shaped contactor of the Distance geometry between grounding base.
Further, described contact Connection Block is fixed contact Connection Block, and the fixed contact of circuit breaker is connected with described fixed contact Connection Block.
The beneficial effects of the utility model are mainly manifested in: devise piston type isolating switch structure, moving contact is the coated piston of insulating material, the framework of embedded fixed contact forms plunger shaft, piston and cavity seal with sealing ring, realize solid insulation, drastically increase the dielectric strength of isolation fracture, the volume size of equipment can be effectively reduced, make switchgear compacter.
Accompanying drawing explanation
Fig. 1 is the structural representation of piston type isolating switch.
Fig. 2 is the schematic diagram of the unit switch with two isolation features.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
With reference to Fig. 1, a kind of piston type isolating switch, described isolating switch comprises pedestal and movable feeler lever, the plunger shaft for described movable feeler lever action is had in described pedestal, described movable feeler lever installs conducting ring near circuit breaker side, and the movable feeler lever of described conducting ring both sides installs left sealing ring and right sealing ring respectively, wherein, left sealing ring is near vacuum interrupter side, and the outer wall both sides of described conducting ring arrange left watchband-shaped contactor and right watchband-shaped contactor respectively; Described plunger shaft installs contact Connection Block near circuit breaker side, and isolation Connection Block is installed at the middle part of described plunger shaft, and the left watchband-shaped contactor of Distance geometry between described contact Connection Block with isolation Connection Block is equal with the distance between right watchband-shaped contactor.
Further, described contact Connection Block is moving contact Connection Block, and the loop connecting end inwall of described moving contact Connection Block installs moving contact watchband-shaped contactor, and the moving contact of circuit breaker slides up and down to be sleeved in described moving contact watchband-shaped contactor.
Further again, described plunger shaft installs grounding base away from circuit breaker side, and described isolation Connection Block is equal with the distance between right watchband-shaped contactor with the left watchband-shaped contactor of the Distance geometry between grounding base.
Further, described contact Connection Block is fixed contact Connection Block, and the fixed contact of circuit breaker is connected with described fixed contact Connection Block.
The piston type isolating switch of the present embodiment is applied to the unit switch with two isolation features, comprise vacuum interrupter 20, isolating switch and earthed switch, described vacuum interrupter 20, isolating switch and earthed switch adopt solid insulating material to be coated in sealing pedestal, the moving contact side of described vacuum interrupter 20 is provided with isolating switch, the fixed contact side of described vacuum interrupter 20 is provided with lower isolating switch, and described upper isolating switch and lower isolating switch are piston type isolating switch;
Described upper isolating switch comprises movable feeler lever 5, the upper piston chamber for described upper movable feeler lever action is had in sealing three pole base of the moving contact side of described vacuum interrupter 20, described upper movable feeler lever 5 installs conducting ring 17 near the moving contact side of vacuum interrupter, the upper movable feeler lever of described upper conducting ring 17 both sides to install on second sealing ring 181 (i.e. right sealing ring) on sealing ring 141 (i.e. left sealing ring) and the 3rd respectively, wherein, on second, sealing ring 141 is near the moving contact side of vacuum interrupter, the outer wall both sides of described upper conducting ring 171 arrange upper left watchband-shaped contactor and upper right watchband-shaped contactor 161 respectively, isolation Connection Block 7 is installed at the middle part in described upper piston chamber, grounding base 3 is installed away from the moving contact side of vacuum interrupter in described upper piston chamber, moving contact Connection Block 21 is installed near the moving contact side of vacuum interrupter in described upper piston chamber, the loop connecting end inwall of described moving contact Connection Block 21 installs moving contact watchband-shaped contactor 22, and the moving contact 65 of described vacuum interrupter slides up and down to be sleeved in described moving contact watchband-shaped contactor 22, distance between described moving contact Connection Block 21 and upper isolation Connection Block 7 is less than the length of described upper conducting ring 171,
Described lower isolating switch comprises lower movable feeler lever 19, the lower piston chamber for described lower movable feeler lever action is had in sealing three pole base below the fixed contact of described vacuum interrupter, static connection seat 15 is installed near fixed contact side in described lower piston chamber, the fixed contact 64 of described vacuum interrupter is electrically connected with described static connection seat 15, described lower movable feeler lever 19 installs lower conducting ring 172 near fixed contact side, the lower movable feeler lever of described lower conducting ring 172 both sides installs the second lower seal 142 (i.e. left sealing ring) and the 3rd lower seal 182 (i.e. right sealing ring) respectively, wherein, second lower seal 142 is near fixed contact side, the outer wall both sides of described lower conducting ring 172 arrange bottom left watchband-shaped contactor and bottom right watchband-shaped contactor 162 respectively, lower isolation Connection Block 13 is installed at the middle part in described lower piston chamber, and the distance between described fixed contact Connection Block 15 and lower isolation Connection Block 19 is less than the length of described lower conducting ring 172, described lower isolation Connection Block 13 is connected with busbar 12.
In upper isolating switch, upper movable contact rod 5 is equipped with sealing ring 141 and upper watchband-shaped contactor 161 on sealing ring 181 on the 3rd, upper conducting ring 171, second.When current watchband-shaped contactor 161 is moved to that the quiet seat 21 of being dynamically connected is with upper isolation Connection Block 7 corresponding position with vacuum interrupter, upper isolating switch closes a floodgate.Instantly contact stem moves right and makes sealing ring 141 on second arrive vacuum interrupter to be dynamically connected between seat 21 and upper isolation Connection Block 7, and upper isolating switch separating brake, on second, sealing ring 141 plays insulation buffer action at this.When upper movable contact rod 5 drives watchband-shaped contactor 161 to be moved to upper isolation Connection Block 7 with grounding base corresponding position, earthed switch closes a floodgate.
In lower isolating switch, lower contact stem 19 is equipped with the 3rd lower seal 182, lower conducting ring 172, second lower seal 142 and lower watchband-shaped contactor 162, it is that the good material of elasticity is made that static connection seat 15 and the vacuum interrupter of vacuum interrupter are integrated sealing ring.Lower moving contact bar 19 can slide in institute's pilot hole, and when movable contact rod 19 drives lower watchband-shaped contactor 162 to be moved to vacuum interrupter static connection seat 15 and lower isolation Connection Block 13 corresponding position instantly, lower isolating switch closes a floodgate.Instantly contact stem moves right and the second lower seal 142 is arrived under between vacuum interrupter static connection seat 15 and lower isolation Connection Block 13, and lower isolating switch separating brake, the second lower seal 14 plays insulation buffer action at this.Piston 10 can move left and right in auxiliary piston chamber, and the lower piston chamber that this auxiliary piston chamber and lower moving contact bar 19 move communicates, and when movable contact rod 19 is moved to the left instantly, piston 10 moves right, and piston 10 is equipped with the first sealing ring 9.Instantly when movable contact rod 19 moves right, piston 10 is moved to the left, equal with the air pressure in retaining hole, reduces piston movement resistance.
Upper movable contact rod 5 and lower moving contact bar 19 realize being synchronized with the movement, and also can drive respectively.
In the present embodiment, grounding base 3, upper isolation Connection Block 7, busbar 12, lower isolation connection 13, vacuum interrupter 20, vacuum interrupter moving contact Connection Block 21 are cast in sealing pedestal 43 by shown position.
The contact of vacuum interrupter moving contact 65 and vacuum interrupter fixed contact 64 realizes closing and cut-offfing electric current in circuit with being separated.Vacuum interrupter moving contact 65 can be loaded on slip in the moving contact watchband-shaped contactor 22 on vacuum interrupter moving contact Connection Block 21, and the screw thread on insulated tension pole 23 is connected with vacuum interrupter moving contact 65.
The vacuum interrupter power transmission shaft 31 that vacuum interrupter and isolating switch, earthed switch are connected by operating mechanism output shaft respectively and isolating switch power transmission shaft 35 operate.In accompanying drawing 1, the contact of vacuum interrupter is in make position, and isolating switch is also for closing position and earthed switch is off position.Connecting plate 32 is in vertical position, and the reaction force acts of touch spring is at the center of vacuum interrupter power transmission shaft.During vacuum interrupter separating brake, vacuum interrupter power transmission shaft rotates clockwise, and is pulled upwardly by connecting plate third connecting rod 29 by connecting rod 32, and vacuum interrupter moving contact 65 leaves vacuum interrupter fixed contact 64, and in circuit, electric current disconnects.The operation of isolating switch and earthed switch can be carried out after vacuum interrupter moving contact 65 and vacuum interrupter fixed contact 64 disconnect, isolating switch power transmission shaft is rotated clockwise by operating mechanism output shaft rotation, rotate downwards by the connecting plate on isolating switch power transmission shaft 35 the 6th pin 78 and double leval jib 36, drive first connecting rod 1 and second connecting rod 4 to be synchronized with the movement.Have a hole and mounting panel 34 respectively to have one to sell at first connecting rod 1 and the middle part of second connecting rod 4 to be connected, in upper movable contact rod 5, connecting axle 6 connects, lower moving contact bar 19 is connected with lower connecting axle 11, and upper connecting axle 5 and lower connecting axle 11 are each passed through the elongated hole below first connecting rod 1 and second connecting rod 4.During isolating switch drive axis, first connecting rod 1 and second connecting rod 4 pin on mounting panel 34 is driven to rotate through double leval jib 36, elongated hole below first connecting rod 1 and second connecting rod 4 drives connecting axle 6 and lower connecting axle 11 to move right, and realizes the sub-switching operation to isolating switch.Isolating switch power transmission shaft continues the closing operation having rotated clockwise earthed switch.

Claims (4)

1. a piston type isolating switch, it is characterized in that: described isolating switch comprises pedestal and movable feeler lever, the plunger shaft for described movable feeler lever action is had in described pedestal, described movable feeler lever installs conducting ring near circuit breaker side, the movable feeler lever of described conducting ring both sides installs left sealing ring and right sealing ring respectively, wherein, left sealing ring is near vacuum interrupter side, and the outer wall both sides of described conducting ring arrange left watchband-shaped contactor and right watchband-shaped contactor respectively; Described plunger shaft installs contact Connection Block near circuit breaker side, and isolation Connection Block is installed at the middle part of described plunger shaft, and the left watchband-shaped contactor of Distance geometry between described contact Connection Block with isolation Connection Block is equal with the distance between right watchband-shaped contactor.
2. piston type isolating switch as claimed in claim 1, it is characterized in that: described contact Connection Block is moving contact Connection Block, the loop connecting end inwall of described moving contact Connection Block installs moving contact watchband-shaped contactor, and the moving contact of circuit breaker slides up and down to be sleeved in described moving contact watchband-shaped contactor.
3. piston type isolating switch as claimed in claim 1 or 2, is characterized in that: described plunger shaft installs grounding base away from circuit breaker side, and described isolation Connection Block is equal with the distance between right watchband-shaped contactor with the left watchband-shaped contactor of the Distance geometry between grounding base.
4. piston type isolating switch as claimed in claim 1, it is characterized in that: described contact Connection Block is fixed contact Connection Block, the fixed contact of circuit breaker is connected with described fixed contact Connection Block.
CN201420526437.4U 2014-09-12 2014-09-12 Piston type isolating switch Active CN204102789U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420526437.4U CN204102789U (en) 2014-09-12 2014-09-12 Piston type isolating switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420526437.4U CN204102789U (en) 2014-09-12 2014-09-12 Piston type isolating switch

Publications (1)

Publication Number Publication Date
CN204102789U true CN204102789U (en) 2015-01-14

Family

ID=52271195

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420526437.4U Active CN204102789U (en) 2014-09-12 2014-09-12 Piston type isolating switch

Country Status (1)

Country Link
CN (1) CN204102789U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104299835A (en) * 2014-09-12 2015-01-21 宁波耀华电气科技有限责任公司 Piston type isolating switch
CN108461321A (en) * 2018-03-27 2018-08-28 国网山东省电力公司郓城县供电公司 A kind of dual power supply switching protection
CN112951643A (en) * 2019-12-11 2021-06-11 Abb瑞士股份有限公司 Three-position isolating switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104299835A (en) * 2014-09-12 2015-01-21 宁波耀华电气科技有限责任公司 Piston type isolating switch
CN108461321A (en) * 2018-03-27 2018-08-28 国网山东省电力公司郓城县供电公司 A kind of dual power supply switching protection
CN108461321B (en) * 2018-03-27 2020-10-02 国网山东省电力公司郓城县供电公司 Dual-power switching protection device
CN112951643A (en) * 2019-12-11 2021-06-11 Abb瑞士股份有限公司 Three-position isolating switch

Similar Documents

Publication Publication Date Title
CN105490199B (en) Withdrawable air insulation ring main unit
CN204102789U (en) Piston type isolating switch
CN201956268U (en) Indoor solid-sealed type high-voltage vacuum circuit breaker
CN201498869U (en) Vacuum ring main unit
CN201893517U (en) 24 kV small-sized vacuum load switch cabinet
CN205583509U (en) A circuit breaker gas tank unit for environmental protection gas switch cabinet
CN201829815U (en) Small intelligent vacuum ring-network cabinet
CN204103338U (en) There is the unit switch of two isolation features
CN203950732U (en) A kind of compound combined electrical equipment
CN204102779U (en) With the isolating switch of wedge shape seal
CN204102778U (en) The operating mechanism of switch with double-isolation
CN202276065U (en) Indoor high-voltage alternating current vacuum load switch-fuse combined electric appliance
CN202650955U (en) Outdoor high-voltage vacuum circuit breaker
CN104299835B (en) Piston type disconnecting switch
CN202602159U (en) SF6 insulated three-station intelligent isolation switch cabinet
CN204361550U (en) A kind of solid all-insulated switch
CN204333611U (en) Solid insulation unit switch
CN201663095U (en) Vacuum circuit breaker for railway electrification
CN204927168U (en) Optional switching device who operates mutually
CN104300416B (en) There is the cubicle switch of double isolation features
CN104377070B (en) Disconnecting switch with wedge shape seal
CN203119374U (en) Miniaturized split solid insulation ring main unit
CN104300417A (en) Indoor inflation ring main unit with embedded poles
CN104143466A (en) Earth switch assembly unit and high-speed earth switch thereof
CN203491590U (en) Electrical switch control cabinet

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant