CN102683097A - Multi-station combination outdoor vacuum switch device - Google Patents

Multi-station combination outdoor vacuum switch device Download PDF

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Publication number
CN102683097A
CN102683097A CN2012101434437A CN201210143443A CN102683097A CN 102683097 A CN102683097 A CN 102683097A CN 2012101434437 A CN2012101434437 A CN 2012101434437A CN 201210143443 A CN201210143443 A CN 201210143443A CN 102683097 A CN102683097 A CN 102683097A
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CN
China
Prior art keywords
vacuum
switch
interlocking
isolating switch
pole
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Pending
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CN2012101434437A
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Chinese (zh)
Inventor
刘崇方
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GUANGDONG BIDA ELECTRICAL APPLIANCE CO Ltd
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GUANGDONG BIDA ELECTRICAL APPLIANCE CO Ltd
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Priority to CN2012101434437A priority Critical patent/CN102683097A/en
Publication of CN102683097A publication Critical patent/CN102683097A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a multi-station combination outdoor vacuum switch device, which comprises a sealing box body, a wire inlet bushing assembly and a wire outlet bushing assembly, wherein a vacuum switch and a disconnecting switch are arranged in the sealing box body, the wire inlet bushing assembly is in series connection with the wire outlet bushing assembly through the disconnecting switch and the vacuum switch, the disconnecting switch is controlled to be switched on or off through a disconnecting switch operating handle, a disconnecting switch main shaft and an operation connecting rod, the vacuum switch is controlled to be switched on or off through a vacuum switch operating handle, a vacuum switch operating mechanism, a connecting rod of an operating mechanism and a main shaft transmission mechanism, and an interlocking mechanism is arranged between the vacuum switch operating mechanism and the disconnecting switch main shaft. The multi-station combination outdoor vacuum switch device also comprises a driving board connected with a separating brake, an interlocking connecting board, an interlocking connecting rod, and a disconnecting switch interlocking connecting board which is arranged on a disconnecting switch operating shaft; and the disconnecting switch operating shaft is connected with the disconnecting switch main shaft. According to the multi-station combination outdoor vacuum switch device adopting the structure, the safety and the reliability are good, and the service life is effectively prolonged.

Description

The outdoor vacuum switchgear of multistation combination
Technical field
Patent of the present invention relates to a kind of multistation combination outdoor vacuum switchgear; Be vacuum interrupter to be encapsulated in a kind of pole that can rotate admittedly specifically with insulating material; And utilize operating mechanism that this pole can be rotated; Can make again that the vacuum interrupter moving contact closes in the pole, the separating brake action; And the pole of three-phase vacuum interrupter is sealed in the seal case, make its accomplish cut-offfing of short circuit (load) electric current or close close, connection or insulating power supply be the outdoor vacuum switchgear of the multistation combination of one.
Background technology
The mesohigh switchgear assembly is an equipment important and crucial in the electrical power trans mission/distribution system, and high voltage isolator is a kind of of device for switching, owing to structurally there is not special arc-control device; So can not be used for connecting and cut off load current or short circuit current, but because of it has significantly visible fracture, therefore in electrical network, cooperate the pass that changes operational mode or when overhaul of the equipments, carry out circuit to close; Play the effect of connection or insulating power supply, traditional isolating switch long term exposure is worked in atmospheric environment, and conducting element can receive environment; Weather conditions, and effect such as filthy oxidation, running environment cause that badly the contact site contact resistance improves and cause that heating causes vicious circle; Add long neglected and in disrepair; Cause loose contact, reduced the through-current capability of equipment, cause accident through regular meeting.In the humid area; IA or the easy corrosion of dust storm area isolating switch, the contact easy ageing is though equipment is in continuous update; But because the influence of regional condition; Problems such as equipment corrosion, oxidation still are difficult to solve, and owing to the influence of high temperature, sleet, frost mist, the reliability of isolating switch are had higher requirement in addition.As the maximum isolating switch of consumption in the electric power system, its technical development is slow, adds Effect of Environmental; The defective of isolating switch operation is more and more outstanding; Particularly along with a large amount of uses of unattended operation transformer station, and the planning of building intelligent strong type electrical network is committed to enforcement, and the reliability of equipment is had higher requirement; Therefore, strengthen the equipment operation of isolating switch and management and skill upgrading are had great significance.Vacuum load switch be can be in the loop normal condition ShiShimonoseki close, carrying and drop-out current, also can be under the exceptional condition (like short circuit) of regulation, the mechanical switching device of loaded current in official hour.Vacuum circuit-breaker is can carry, close and close and cut-off the electric current under the normal loop condition; And can close the mechanical switching device that closes, in official hour, carries and cut-off electric current under the unusual loop condition (like short circuit); Vacuum circuit-breaker, vacuum load switch are referred to as vacuum switch usually; Because straight empty switch security performance stability is not enough, therefore need usually to combine isolating switch to realize the duplicate protection of repair and maintenance, but present vacuum switch and isolating switch all are the branch body structure usually; Through the link gear control that links, structure is very complicated.
Summary of the invention
The object of the invention is to overcome the limitation of prior art, and the function that provides a kind of pole that utilizes vacuum interrupter under the operating mechanism actuating, to rotate reaches the purpose of isolating or connecting circuit, satisfies the performance requirement of isolating switch; Utilize that vacuum interrupter closes under the actuating of operating mechanism, the separating brake action; Cut-off, close the function of closing short circuit (load) electric current; Satisfy the performance requirement of vacuum switch again; And the function of isolating switch and vacuum switch carried out organic assembling, form a kind of outdoor vacuum switchgear of multistation combination that improves reliability of products and effectively prolong the useful life of product.
The objective of the invention is to realize like this: a kind of outdoor vacuum switchgear of multistation combination; Comprise seal case, be located at entrance bushing assembly, lead collar pipe assembly on the seal case; It is characterized in that: be provided with vacuum switch, isolating switch said seal case); Entrance bushing assembly, lead collar pipe assembly are connected in series through isolating switch, vacuum switch; Said isolating switch is through isolator operation handle, isolating switch main shaft, operator link its combined floodgate of control or separating brake; Vacuum switch is through connecting rod and its break-make of spindle drive control of vacuum switch operating grip, Magnetic Actuator for Vacuum Circuit Breaker mechanism, operating mechanism; Be provided with interlocking device between said Magnetic Actuator for Vacuum Circuit Breaker mechanism and the isolating switch main shaft, comprise the drive plate that is connected with the sincere son of the separating brake of Magnetic Actuator for Vacuum Circuit Breaker mechanism, interlocking connecting plate, interlocking rod, be installed in the isolating switch interlocking connecting plate on the isolator operation axle, the isolator operation axle is connected with the isolating switch main shaft.
Said interlocking rod reciprocatingly moves under the sincere rotation driving action of separating brake; The interlocking connecting plate rotatablely moves under the driving of isolator operation axle; Said interlocking connecting plate offers location notch, but the end of interlocking rod with the interlocking connecting plate the location notch clutch be connected.
Said vacuum switch comprises pole, moving contact, fixed contact; It is indoor that moving contact, fixed contact all are located at the vacuum extinction of pole; Wherein moving contact is electrically connected with the entrance bushing assembly through conductive component; Fixed contact is electrically connected with the lead collar pipe assembly; Spindle drive links to each other with the moving contact of vacuum interrupter, but moving contact is through the indoor clutch of its vacuum extinction at pole of the connecting rod driving ground and fixed contact contact matching of vacuum switch operating grip, Magnetic Actuator for Vacuum Circuit Breaker mechanism, operating mechanism.
Said vacuum switch comprises that isolating switch comprises conductive contact blade, and conductive contact blade one end is electrically connected with the entrance bushing assembly, and the other end is removably mounted on the upper end conductive component that is connected with moving contact; The lower end of said pole is installed in rotation on the rotary support member through rotating shaft, and pole links to each other with operator link; The rotary isolation switch operating grip, pole is around the rotating shaft rotation of rotary support member.
Said spindle drive comprises rotating shaft, turning arm, energy-storaging spring and actuating arm, and actuating arm links to each other with the moving contact of vacuum interrupter.
Said pole is that insulating material is made.
Good effect of the present invention: the function of utilizing pole under the operating mechanism actuating, rotate with vacuum interrupter, reach the purpose of isolation or connection circuit, satisfy the performance requirement of isolating switch; Utilize that vacuum interrupter closes under the actuating of operating mechanism, the separating brake action; Cut-off, close the function of closing short circuit (load) electric current; Satisfy the performance requirement of vacuum switch again; And the function of isolating switch and vacuum switch is carried out organic assembling be installed in the same seal case, form the combined integrated outdoor vacuum switchgear of multistation.With insulating material vacuum interrupter is encapsulated in a kind of pole that can rotate admittedly specifically; And utilize operating mechanism that this pole can be rotated; Can make again that the vacuum interrupter moving contact closes in the pole, the separating brake action; And the pole of three-phase vacuum interrupter is sealed in the seal case, make its accomplish cut-offfing of short circuit (load) electric current or close close, connection or insulating power supply be the multistation combination outdoor vacuum switchgear of one.This multistation combination outdoor vacuum switchgear has been avoided and the contacting of external environment, and has improved the reliability and the useful life of switch again, saves material.It is chain that the mechanism of the mechanism of actuating vacuum switch and actuating isolating switch is provided with reliable mechanical; Satisfy vacuum switch under "on" position; Isolating switch can not close, sub-switching operation; Have only vacuum switch under gate-dividing state, isolating switch just can close, the requirement of sub-switching operation, meets the operating provision of switchgear.
Adopt the outdoor vacuum switchgear of the multistation combination of this structure, have functional diversities, compact conformationization, characteristics such as volume miniaturization are compared with traditional gas-insulated switchgear, and size reduces greatly, and cost is effectively reduced.
Description of drawings
Fig. 1 is for multistation combination outdoor vacuum switchgear of the present invention closes a floodgate at isolating switch, the structural representation of vacuum switch "on" position.
Fig. 2 is for multistation combination outdoor vacuum switchgear of the present invention closes a floodgate at isolating switch, the structural representation of vacuum switch gate-dividing state.
Fig. 3 is the structural representation of multistation combination outdoor vacuum switchgear of the present invention at isolating switch separating brake, vacuum switch gate-dividing state.
Fig. 4 is the structural representation of multistation combination outdoor vacuum switchgear of the present invention in isolating switch separating brake, vacuum switch "on" position.
Fig. 5 is multistation combination outdoor vacuum switchgear internal structure plan structure sketch map of the present invention.
Fig. 6 is that interlocking device closes a floodgate at isolating switch, the structural representation of vacuum switch "on" position.
Fig. 7 is that interlocking device closes a floodgate at isolating switch, the structural representation of vacuum switch gate-dividing state.
Fig. 8 is the structural representation of interlocking device at isolating switch separating brake, vacuum switch gate-dividing state.
Fig. 9 is the structural representation of interlocking device in isolating switch separating brake, vacuum switch "on" position.
Embodiment
Below in conjunction with accompanying drawing the outdoor vacuum switchgear of multistation combination is done further to specify.
Extremely shown in Figure 9 like Fig. 1: the outdoor vacuum switchgear of multistation combination according to the invention; Mainly by seal case 16, be located at entrance bushing assembly 8, the lead collar pipe assembly 14 on the seal case 16, vacuum switch, the isolating switches of being located in the seal case 16 are formed; Entrance bushing assembly 8,, lead collar pipe assembly 14 is connected in series through isolating switch, vacuum switch; Isolating switch is through isolator operation handle 15, isolating switch main shaft 13, operator link 12 its combined floodgate of control or separating brakes; Vacuum switch is through connecting rod 3 and spindle drive 4 its break-makes of control of vacuum switch operating grip 1, Magnetic Actuator for Vacuum Circuit Breaker mechanism 2, operating mechanism; Be provided with interlocking device between Magnetic Actuator for Vacuum Circuit Breaker mechanism 2 and the isolating switch main shaft 13; Comprise the drive plate 20 that is connected with the separating brake of Magnetic Actuator for Vacuum Circuit Breaker mechanism 2 sincere sub 24, interlocking connecting plate 21, interlocking rod 28, be installed in the isolating switch interlocking connecting plate 30 on the isolator operation axle 29, isolator operation axle 29 is connected with isolating switch main shaft 13.Interlocking rod 28 reciprocatingly moves under the sincere sub 24 rotation driving action of separating brake; Interlocking connecting plate 30 rotatablely moves under the driving of isolator operation axle 29; Offer location notch 300 at interlocking connecting plate 30, but the location notch 300 clutches ground of the end of interlocking rod 28 and interlocking connecting plate 30 be connected, when an end of interlocking rod 28 and the connecting plate 30 of interlocking location notch 300 when contacting; Interlocking rod 28 locking interlocking connecting plates 30, isolator operation axle 29 is locked and can't operates; One end of interlocking rod 28 is separated with the location notch 300 of interlocking connecting plate 30, and this moment, interlocking rod 28 did not lock interlocking connecting plate 30, and isolator operation axle 29 can rotary manipulation, accomplishes the closing of isolating switch, separating brake.Vacuum switch mainly is made up of pole 11, moving contact 31, fixed contact 32; Moving contact 31, fixed contact 32 all are located in the vacuum interrupter 7 of pole 11; Wherein moving contact 31 is electrically connected with entrance bushing assembly 8 through conductive component; Fixed contact 32 is electrically connected with lead collar pipe assembly 14; Spindle drive 4 links to each other with the moving contact 31 of vacuum interrupter 7, but moving contact 31 is through connecting rod 3 drivings its clutch ground and fixed contact 32 contact matching in the vacuum interrupter 7 of pole 11 of vacuum switch operating grip 1, Magnetic Actuator for Vacuum Circuit Breaker mechanism 2, operating mechanism.Vacuum switch comprises that isolating switch comprises conductive contact 9, and conductive contact 9 one ends are electrically connected with entrance bushing assembly 8, and the other end is removably mounted on the conductive component that is connected with the moving contact 31 of vacuum switch; The lower end of pole 11 is installed in rotation on the rotary support member 6 through rotating shaft 19, and pole 11 links to each other with operator link 12; Rotary isolation switch operating grip 15, pole 11 is around rotating shaft 19 rotations of rotary support member 6.Spindle drive 4 comprises rotating shaft 40, turning arm 41, energy-storaging spring 42 and actuating arm 43, and actuating arm 43 links to each other with the moving contact 31 of vacuum interrupter 7.
According to accompanying drawing 1, Fig. 2, Fig. 3 and shown in Figure 4, the outdoor vacuum switchgear of the multistation of patent of the present invention combination has four kinds of functional statuses, is respectively following.
State one: isolating switch closes a floodgate, vacuum switch closes a floodgate.
State two: isolating switch closes a floodgate, the vacuum switch separating brake.
State three: isolating switch separating brake, vacuum switch separating brake.
State four: isolating switch separating brake, vacuum switch close a floodgate.
When wherein state one, state two closed a floodgate for isolating switch, vacuum switch can close, sub-switching operation, Lai Guanhe, cut-off the short circuit load current; The outdoor vacuum switchgear of this multistation combination is in running status in system, can carry out the pass of line short load current at any time and close, cut-off, and satisfies instructions for use.Wherein state three, state four are the isolating switch separating brake, this moment vacuum switch can close, sub-switching operation, the performance of vacuum switch is debugged, is overhauled or the circuit that has a power failure is overhauled; This multistation combination outdoor vacuum switchgear is isolated power supply in the line, and tangible isolation fracture is arranged, and is in maintenance or stand-by state.
The operating principle of the multistation combination outdoor vacuum switchgear of patent art scheme is done following the description:
Isolating switch close branch: when the vacuum switch is in gate-dividing state; The release under the drive of Magnetic Actuator for Vacuum Circuit Breaker mechanism of the locking piece of locking isolating switch; Isolator operation handle 15 links to each other with isolating switch main shaft 13; Isolating switch main shaft 13 links to each other with operator link 12, and operator link 12 links to each other with pole 11 upper ends; In the quadric chain of forming by above-mentioned member; Isolator operation handle 15 turns clockwise; This moment, pole 11 rotated around the rotating shaft 19 that is installed on the rotary support member 6, and the conductive component on pole 11 tops separates with conductive contact blade 9, reaches the purpose of isolating switch separating brake; And under the effect of isolating switch operating mechanism, pole 11 remains on the separating brake position; Otherwise, being rotated counterclockwise isolator operation handle 15, this moment, the conductive component on pole 11 tops contacted with conductive contact blade 9, and isolating switch closes a floodgate, and under the effect of isolating switch operating mechanism, pole 11 remains on closing position.
Vacuum switch close branch: vacuum switch operating grip 1 turns clockwise; Magnetic Actuator for Vacuum Circuit Breaker mechanism 2 driving main shaft transmission mechanisms 4 work this moment; Energy-stored spring 42 releases energy, and actuating arm 43 links to each other with the moving contact 31 of vacuum interrupter 7, thereby drives moving contact 31 motions of vacuum interrupter 7; Make the moving contact 31 of vacuum interrupter closed under certain contact pressure with fixed contact 32, this moment, vacuum switch closed a floodgate; Otherwise, be rotated counterclockwise vacuum switch operating grip 1, spindle drive 4 reverse rotations this moment, the moving contact 31 that makes vacuum interrupter 7 and fixed contact 32 separate with certain speed, at this moment the vacuum switch separating brake.
According to accompanying drawing 6, Fig. 7, Fig. 8 and shown in Figure 9; The chain description as follows of the outdoor vacuum switchgear operating mechanism of the multistation of patent of the present invention combination: when the separating brake of vacuum switch operating mechanism sincere sub 24 suitable/when being rotated counterclockwise; The drive plate of Magnetic Actuator for Vacuum Circuit Breaker mechanism is 20 suitable/is rotated counterclockwise; Drive 21 motions of interlocking connecting plate, interlocking connecting plate 21 links to each other with interlocking rod 28, under the effect of interlocking connecting plate 21, connects interlocking rod 28 and in location notch 300, moves reciprocatingly; Closing branch when operation of isolating switch; That isolator operation axle 29 drives isolating switches interlocking connecting plate is 30 suitable/when being rotated counterclockwise; The location notch 300 of interlocking on the connecting plate 30 be with 29 rotations of isolator operation axle, is in closing position and the separating brake position of accompanying drawing 8 states three of the state one of accompanying drawing 6.
When the vacuum switch closes a floodgate; Interlocking rod 28 moves right, and interlocking rod 28 1 ends contact with the location notch 300 of interlocking connecting plate 30, at this moment interlocking rod 28 locking interlocking connecting plates 30; The isolator operation axle 29 that links together with interlocking connecting plate 30 is locked, and can't operate.Both isolating switch can't move; When vacuum switch separating brake; Interlocking rod 28 is moved to the left; One end of interlocking rod 28 is separated with the location notch 300 of interlocking connecting plate 30; This moment, interlocking rod 28 can not lock interlocking connecting plate 30, with the isolator operation axle 29 that links together of interlocking connecting plate 30 can be suitable/be rotated counterclockwise operation, accomplish the branch that closes of isolating switch.In sum: this is chain to satisfy vacuum switch under "on" position, and isolating switch can not close, sub-switching operation; Have only vacuum switch under gate-dividing state, isolating switch just can close, the requirement of sub-switching operation, meets the operating provision of switchgear.

Claims (6)

1. the outdoor vacuum switchgear of multistation combination; Comprise seal case (16), be located at entrance bushing assembly (8), lead collar pipe assembly (14) on the seal case (16); It is characterized in that: said seal case is provided with vacuum switch, isolating switch in (16); Entrance bushing assembly (8), lead collar pipe assembly (14) are connected in series through isolating switch, vacuum switch; Said isolating switch is controlled its combined floodgate or separating brake through isolator operation handle (15), isolating switch main shaft (13), operator link (12); Vacuum switch is controlled its break-make through the connecting rod (3) and the spindle drive (4) of vacuum switch operating grip (1), Magnetic Actuator for Vacuum Circuit Breaker mechanism (2), operating mechanism; Be provided with interlocking device between said Magnetic Actuator for Vacuum Circuit Breaker mechanism (2) and the isolating switch main shaft (13); Comprise the drive plate (20) that is connected with the sincere son of separating brake (24) of Magnetic Actuator for Vacuum Circuit Breaker mechanism (2), interlocking connecting plate (21), interlocking rod (28), be installed in the isolating switch interlocking connecting plate (30) on the isolator operation axle (29), isolator operation axle (29) is connected with isolating switch main shaft (13).
2. the outdoor vacuum switchgear of multistation combination according to claim 1; It is characterized in that: said interlocking rod (28) reciprocatingly moves under the sincere son of separating brake (24) rotation driving action; Interlocking connecting plate (30) rotatablely moves under the driving of isolator operation axle (29); Said interlocking connecting plate (30) offers location notch (300), the end of interlocking rod (28) with the interlocking connecting plate (30) location notch (300) but clutch be connected.
3. the outdoor vacuum switchgear of multistation combination according to claim 1 and 2; It is characterized in that: said vacuum switch comprises pole (11), moving contact (31), fixed contact (32); Moving contact (31), fixed contact (32) all are located in the vacuum interrupter (7) of pole (11); Wherein moving contact (31) is electrically connected with entrance bushing assembly (8) through conductive component; Fixed contact (32) is electrically connected with lead collar pipe assembly (14); Spindle drive (4) links to each other with the moving contact (31) of vacuum interrupter (7), the connecting rod (3) of moving contact (31) through vacuum switch operating grip (1), Magnetic Actuator for Vacuum Circuit Breaker mechanism (2), operating mechanism drive its vacuum interrupter (7) in pole (11) but in clutch ground and fixed contact (32) contact matching.
4. the outdoor vacuum switchgear of multistation combination according to claim 3; It is characterized in that: said vacuum switch comprises that isolating switch comprises conductive contact blade (9); Conductive contact blade (9) one ends are electrically connected with entrance bushing assembly (8), and the other end is removably mounted on the upper end conductive component that is connected with moving contact (31); (11 lower end is installed in rotation on the rotary support member (6) through rotating shaft (19) said pole, and pole (11) links to each other with operator link (12); Rotary isolation switch operating grip (15), pole (11) is around rotating shaft (19) rotation of rotary support member (6).
5. the outdoor vacuum switchgear of multistation combination according to claim 3; It is characterized in that: said spindle drive (4) comprises rotating shaft (40), turning arm (41), transmission arm (42) and actuating arm transmission arm (43), and transmission arm (43) links to each other with the moving contact (31) of vacuum interrupter (7).
6. the outdoor vacuum switchgear of multistation combination according to claim 1 is characterized in that: said pole (11) is made for insulating material.
CN2012101434437A 2012-05-10 2012-05-10 Multi-station combination outdoor vacuum switch device Pending CN102683097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101434437A CN102683097A (en) 2012-05-10 2012-05-10 Multi-station combination outdoor vacuum switch device

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Application Number Priority Date Filing Date Title
CN2012101434437A CN102683097A (en) 2012-05-10 2012-05-10 Multi-station combination outdoor vacuum switch device

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CN102683097A true CN102683097A (en) 2012-09-19

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CN2012101434437A Pending CN102683097A (en) 2012-05-10 2012-05-10 Multi-station combination outdoor vacuum switch device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015147522A1 (en) * 2014-03-25 2015-10-01 현대중공업 주식회사 Molded case circuit breaker
CN105895447A (en) * 2016-05-26 2016-08-24 武汉中开维电气有限公司 Outdoor high-voltage vacuum isolation circuit breaker with rotation function
CN108133862A (en) * 2018-01-19 2018-06-08 西安交通大学 A kind of series compensation type current-limiting apparatus and method for interlocking vacuum switch and application

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2322372A1 (en) * 1973-04-30 1974-11-07 Siemens Ag MULTIPOLE VACUUM SWITCHING DEVICE
CN2251195Y (en) * 1996-03-22 1997-04-02 西安高压电器研究所 Tri-positioning vacuum load switch
CN1595580A (en) * 2003-09-10 2005-03-16 刘崇方 Small-sized vacuum load switch
CN102436950A (en) * 2011-10-14 2012-05-02 常州市明及电气技术开发有限公司 Interlocking mechanism of isolation switch and breaker
CN202721074U (en) * 2012-05-10 2013-02-06 广东必达电器有限公司 Multi-station combined outdoor vacuum switch apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2322372A1 (en) * 1973-04-30 1974-11-07 Siemens Ag MULTIPOLE VACUUM SWITCHING DEVICE
CN2251195Y (en) * 1996-03-22 1997-04-02 西安高压电器研究所 Tri-positioning vacuum load switch
CN1595580A (en) * 2003-09-10 2005-03-16 刘崇方 Small-sized vacuum load switch
CN102436950A (en) * 2011-10-14 2012-05-02 常州市明及电气技术开发有限公司 Interlocking mechanism of isolation switch and breaker
CN202721074U (en) * 2012-05-10 2013-02-06 广东必达电器有限公司 Multi-station combined outdoor vacuum switch apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015147522A1 (en) * 2014-03-25 2015-10-01 현대중공업 주식회사 Molded case circuit breaker
CN105895447A (en) * 2016-05-26 2016-08-24 武汉中开维电气有限公司 Outdoor high-voltage vacuum isolation circuit breaker with rotation function
CN108133862A (en) * 2018-01-19 2018-06-08 西安交通大学 A kind of series compensation type current-limiting apparatus and method for interlocking vacuum switch and application
CN108133862B (en) * 2018-01-19 2024-03-26 西安交通大学 Interlocking vacuum switch and series compensation type current limiting device and method applied by same

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Application publication date: 20120919