CN105845489A - Wall-mounted type three-phase longitudinally-arranged medium-voltage vacuum circuit breaker - Google Patents

Wall-mounted type three-phase longitudinally-arranged medium-voltage vacuum circuit breaker Download PDF

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Publication number
CN105845489A
CN105845489A CN201610373522.5A CN201610373522A CN105845489A CN 105845489 A CN105845489 A CN 105845489A CN 201610373522 A CN201610373522 A CN 201610373522A CN 105845489 A CN105845489 A CN 105845489A
Authority
CN
China
Prior art keywords
circuit breaker
wall
phase
vacuum circuit
frame
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.)
Pending
Application number
CN201610373522.5A
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Chinese (zh)
Inventor
袁进军
沈金祥
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 Yongxin Oriental Electric Co Ltd
Original Assignee
Ningbo Yongxin Oriental Electric 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 Yongxin Oriental Electric Co Ltd filed Critical Ningbo Yongxin Oriental Electric Co Ltd
Priority to CN201610373522.5A priority Critical patent/CN105845489A/en
Publication of CN105845489A publication Critical patent/CN105845489A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/662Housings or protective screens
    • H01H33/66207Specific housing details, e.g. sealing, soldering or brazing
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/664Contacts; Arc-extinguishing means, e.g. arcing rings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements

Abstract

The invention discloses a wall-mounted type three-phase longitudinally-arranged medium-voltage vacuum circuit breaker. The wall-mounted type three-phase longitudinally-arranged medium-voltage vacuum circuit breaker comprises a rack, an operating mechanism, three encapsulation pole posts and three transmission mechanisms corresponding to the three encapsulation pole posts, wherein the three encapsulation pole posts are longitudinally fixed on the rack in parallel, the transmission mechanisms are arranged at the rear lower parts of the encapsulation pole posts and are connected with a movable conductive rod of a vacuum arc extinguishing chamber in the corresponding encapsulation pole post through an insulation pull rod, the operating mechanism is arranged on the front surface of the rack, and an output shaft of the operating mechanism is connected to the three transmission mechanism through a main shaft. The wall-mounted type three-phase longitudinally-arranged medium-voltage vacuum circuit breaker has the advantages that with the adoption of the encapsulation pole posts, the insulation performance is high; with the adoption of a well-mounted assembly mode, the installation size is small, the safety is higher; and two rollers are arranged at the bottom of an installation surface of the rack, a flange is arranged at the top of the installation surface of the rack and is used for supporting and reducing a friction force when the circuit breaker gets in and out of a rail on the side wall of a cabinet body, the circuit breaker cannot laterally incline, the labor intensity during production, assembly, inspection and maintenance is reduced, and the safety of a human body and a device is ensured.

Description

The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase is longitudinally arranged
Technical field
The present invention relates to a kind of chopper, the middle pressure vacuum circuit breaker being longitudinally arranged particularly to a kind of wall-mounted three-phase.
Background technology
Domestic application looped network distribution technique development in recent years is exceedingly fast, particularly since the big transformation of city, whole nation net, many cities are newly-built have employed ring network power supply mode in the power distribution network of reconstruction, thus employs ring main unit and preassembled transformer station in a large number, makes the product consumptions such as looped network breaker cabinet drastically be incremented by.
SF6 ring main unit not only product variety increases increasingly at present, and product technology parameter, performance are greatly enhanced;And vacuum ring main unit currently also has certain yield, but wherein main element chopper uses tower structure mostly, namely vacuum interrupter is arranged in the framework manufactured by insulant, there is the dust-proof of vacuum interrupter and surface condensation problem, certain impact is brought to system safety operation, and product size is big, after being assembled to ring main unit, cabinet width is smallest size of needs 600mm.
Pole can solve the dust-proof of vacuum interrupter and surface condensation problem.The vacuum switch product using pole the most both at home and abroad is a lot, but is used for the little of ring main unit, and its pole is all the high column structure that bottom using, four screws are installed, and after being assemblied in chopper, overall product size is bigger than normal, debugging difficulty.
Summary of the invention
The technical problem to be solved is for the deficiencies in the prior art, it is provided that the middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase is longitudinally arranged.
To achieve these goals, the measure that the present invention is taked:
The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase is longitudinally arranged, including frame, operating mechanism, three poles and three drive mechanisms corresponding with three poles, three described poles are longitudinally fixed in frame side by side, drive mechanism is arranged on the rear lower of pole, drive mechanism is connected with the moving conductive rod of the vacuum interrupter in corresponding pole by insulated tension pole, operating mechanism is arranged on the front of frame, and the output shaft of operating mechanism is connected to three drive mechanisms by main shaft;
Being provided with two rollers bottom the installed surface of described frame, the installed surface top of frame is provided with bead;
nullDescribed pole includes vacuum interrupter、It is fixed on the upper wire outlet seat that the stationary contact of vacuum interrupter forward extends out、It is coated on the cushion of vacuum extinction outdoor face、And it is cast in the insulator outside vacuum interrupter and upper wire outlet seat,Insulator extends the moving contact end of vacuum interrupter,The moving contact end of vacuum interrupter is connected by the upper end screw rod of insulated tension pole soft wiring part,Soft wiring part is fixed on the lower outlet convex of insulator exterior through the lower wire hole on insulator,The lower end screw rod of insulated tension pole is connected the contactor separating brake action realizing vacuum interrupter with the drive mechanism of vacuum circuit breaker,After insulator, the upper end near vacuum interrupter is provided with convex、Lower end away from vacuum interrupter is provided with lower convex,Threaded insert all it is cast with in upper convex and lower convex,Threaded insert coordinates the pole described in fixing connection and frame with bolt;
It is cast with threaded insert in the lower outlet convex of described insulator exterior;
It is tubular that described insulator stretches out the extension of vacuum interrupter lower end, and insulated tension pole is positioned at cylinder, and the extension of tubular includes first half and latter half, and the length of first half is longer than the length of latter half;
The first half of described extension connects an insulated support, insulated support top half is semicircular cylinder, threaded insert it is cast with in semicircular cylinder, threaded insert coordinates the insulated support described in fixing connection and frame with bolt, and the semicircular cylinder of insulated support top half is stacked with the tubular first half of pole;
Described drive mechanism includes main shaft, rocking arm, connecting plate and connecting lever, and rocking arm is fixed on main shaft, and through there being bearing pin on connecting lever, pivot pin is by Interal fixation in frame, and the two ends of connecting plate are connected on rocking arm and connecting lever, and connecting lever is connected to insulated tension pole;
Splitting lock cushioning connecting lever and oil bumper are installed after described frame;
It is fixed with switch-over row on described lower outlet convex and insulated support;
Backward, Open Side Down for the threaded insert in lower convex for the opening of the described threaded insert in upper convex.
Beneficial effects of the present invention: practical, production cost is low, uses pole, good insulation preformance, and uses wall-mounted assembling mode, and drive mechanism is at pole rear lower, and installation dimension is little;It is tubular that the insulator of pole stretches out the extension of vacuum interrupter lower end, tubular first half is longer than latter half, enhance the dielectric strength between lead-out wire and drive mechanism under chopper, and connect an insulated support at tubular first half, the described insulated support first half is semicircular cylinder, being stacked with described tubular first half, extend the lower lead-out wire insulation distance relative to drive mechanism, safety is more preferable;Erecting is calculated as wall mounted versions and can push when passing in and out cabinet or extract out, equipped with two rollers bottom frame installed surface, frame installed surface top is provided with bead, support and reduce frictional force when chopper turnover cabinet side wall rails, and ensure that chopper will not roll, alleviate labor intensity when producing assembling, Inspection and maintenance, it is ensured that the person and the safety of equipment.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the present invention.
Fig. 2 is the front plan structural representation of the present invention.
Fig. 3 is the lateral plane structural representation of the present invention.
Fig. 4 is the insulated support structural representation of the present invention.
Detailed description of the invention
The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase is longitudinally arranged, including frame 1,7, three poles 2 of operating mechanism and three drive mechanisms corresponding with three poles 2, three described poles 2 are longitudinally fixed in frame 1 side by side, drive mechanism is arranged on the rear lower of pole 2, drive mechanism is connected with the moving conductive rod of the vacuum interrupter in corresponding pole 2 by insulated tension pole 4, operating mechanism 7 is arranged on the front of frame 1, and the output shaft of operating mechanism 7 is connected to three drive mechanisms by main shaft 14.
Being provided with two rollers 10 bottom the installed surface of described frame 1, the installed surface top of frame 1 is provided with bead 19.Support during for switching turnover cabinet side wall rails and reduce frictional force, and ensureing that switch will not roll, alleviating labor intensity when producing assembling, Inspection and maintenance, it is ensured that the person and the safety of equipment.
nullDescribed pole 2 includes vacuum interrupter、It is fixed on the upper wire outlet seat that the stationary contact of vacuum interrupter forward extends out、It is coated on the cushion of vacuum extinction outdoor face、And it is cast in the insulator outside vacuum interrupter and upper wire outlet seat,Insulator extends the moving contact end of vacuum interrupter,The moving contact end of vacuum interrupter is connected by the upper end screw rod of insulated tension pole 4 soft wiring part 3,Soft wiring part 3 is fixed on the lower outlet convex of insulator exterior through the lower wire hole on insulator,The lower end screw rod of insulated tension pole 4 is connected the contactor separating brake action realizing vacuum interrupter with the drive mechanism of vacuum circuit breaker,After insulator, the upper end near vacuum interrupter is provided with convex、Lower end away from vacuum interrupter is provided with lower convex,Threaded insert all it is cast with in upper convex and lower convex,Threaded insert coordinates the pole 2 described in fixing connection and frame 1 with bolt.
It is cast with threaded insert in the lower outlet convex of described insulator exterior.
It is tubular that described insulator stretches out the extension of vacuum interrupter lower end, and insulated tension pole 4 is positioned at cylinder, and the extension of tubular includes first half and latter half, and the length of first half is longer than the length of latter half.
The first half of described extension connects an insulated support 6, insulated support 6 top half is semicircular cylinder, threaded insert it is cast with in semicircular cylinder, threaded insert coordinates the insulated support 6 described in fixing connection and frame 1 with bolt, and the semicircular cylinder of insulated support 6 top half is stacked with the tubular first half of pole 2.
The generally L shape of described insulated support 6, the top half of insulated support 6 is semicircular cylinder, is cast with four threaded inserts in semicircular cylinder, and threaded insert is fixing with the cooperation of M10 bolt is connected described insulated support 6 and frame 1.Insulated support 6 top half semicircular cylinder is stacked with pole 2 tubular first half.The latter half of insulated support 6 is the cylinder with full skirt, and this cylinder one end is vertical with the top half of insulated support 6 to be connected, protruding, is used for supporting switch-over row 5.
Described drive mechanism includes main shaft 14, rocking arm 15, connecting plate 16 and connecting lever 17; rocking arm 15 is fixed on main shaft 14; through there being bearing pin 18 on connecting lever 17; pivot pin 18 passes through Interal fixation in frame 1; two ends of connecting plate 16 are connected on rocking arm 15 and connecting lever 17, and connecting lever 17 is connected on insulated tension pole 4.Three drive mechanisms share a main shaft 14, it is ensured that three-phase action simultaneously.
When operating mechanism 7 performs to close a floodgate order, main shaft 14 moves in the direction of the clock, connecting lever 17 also moves in the direction of the clock around bearing pin 18, the insulated tension pole 4 being arranged in pole 2 is driven to move upward, insulated tension pole 4 drives the vacuum interrupter moving contact in pole 2 to move upward, until the dynamic and static contact of vacuum interrupter after completing 3mm contacting travel, operating mechanism 7 makes main shaft 14 stop operating, completing closing operation, whole drive system is maintained at closing position.
When operating mechanism 7 performs separating brake order, main shaft 14 rotates counterclockwise, connecting lever 17 also rotates counterclockwise around pivot pin 18, connecting lever 17 drives insulated tension pole 4 to move downward, insulated tension pole 4 drives vacuum interrupter moving contact to move downward, until the design that the dynamic and static contact of vacuum interrupter separated and pulled open 8mm is opened away from rear, operating mechanism 7 makes main shaft 14 stop operating, completing sub-switching operation, whole drive system is maintained at open position.
In the process: when moving contact has moved downward about 5mm, splitting lock cushioning connecting lever 8 contacts with oil bumper 9, and drive system starts to be damped and be braked, thus suppresses separating brake to cross punching and rebound amount.
Splitting lock cushioning connecting lever 8 and oil bumper 9 are installed after described frame 1.For suppressing separating brake to cross punching and rebound amount.
It is fixed with switch-over row 5 on described lower outlet convex and insulated support 6.
Backward, Open Side Down for the threaded insert in lower convex for the opening of the described threaded insert in upper convex.Pole 2 is more firm.

Claims (10)

1. the middle pressure vacuum circuit breaker that wall-mounted three-phase is longitudinally arranged, including frame (1), behaviour Motivation structure (7), three poles (2) and three corresponding with three poles (2) Drive mechanism, it is characterised in that: three described poles (2) are the most longitudinally fixed In frame (1), drive mechanism is arranged on the rear lower of pole (2), drive mechanism Moving conductive by insulated tension pole (4) with the vacuum interrupter in corresponding pole (2) Bar connects, and operating mechanism (7) is arranged on the front of frame (1), operating mechanism (7) Output shaft is connected to three drive mechanisms by main shaft (14).
The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase the most according to claim 1 is longitudinally arranged Device, it is characterised in that: it is provided with two rollers (10) bottom the installed surface of described frame (1), The installed surface top of frame (1) is provided with bead (19).
The middle pressure vacuum that a kind of wall-mounted three-phase the most according to claim 1 and 2 is longitudinally arranged Chopper, it is characterised in that: described pole (2) includes vacuum interrupter, fixes The upper wire outlet seat that forward extends out at the stationary contact of vacuum interrupter, to be coated on vacuum extinction outdoor The cushion on surface and be cast in the insulator outside vacuum interrupter and upper wire outlet seat, insulation Body extends the moving contact end of vacuum interrupter, and the moving contact end of vacuum interrupter is drawn by insulation The upper end screw rod of bar (4) connects soft wiring part (3), and soft wiring part (3) passes insulator On lower wire hole be fixed on the lower outlet convex of insulator exterior, insulated tension pole (4) Lower end screw rod is connected with the drive mechanism of vacuum circuit breaker and realizes the contactor of vacuum interrupter and divide Lock action, after insulator, the upper end near vacuum interrupter is provided with convex, away from very It is embedding that the lower end of empty arc-chutes is all cast with screw thread in being provided with lower convex, upper convex and lower convex Part, threaded insert coordinates the pole (2) described in fixing connection and frame (1) with bolt.
The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase the most according to claim 3 is longitudinally arranged Device, it is characterised in that: it is cast with threaded insert in the lower outlet convex of described insulator exterior.
The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase the most according to claim 4 is longitudinally arranged Device, it is characterised in that: it is cylinder that described insulator stretches out the extension of vacuum interrupter lower end Shape, insulated tension pole (4) is positioned at cylinder, and the extension of tubular includes first half and later half Part, the length of first half is longer than the length of latter half.
The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase the most according to claim 5 is longitudinally arranged Device, it is characterised in that: the first half of described extension connects an insulated support (6), insulated support (6) top half is semicircular cylinder, is cast with screw thread embedding in semicircular cylinder Part, threaded insert coordinates the insulated support (6) described in fixing connection and frame (1) with bolt, The semicircular cylinder of insulated support (6) top half and the tubular first half of pole (2) Stacked.
The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase the most according to claim 6 is longitudinally arranged Device, it is characterised in that: described drive mechanism includes main shaft (14), rocking arm (15), connecting plate (16) and connecting lever (17), rocking arm (15) is fixed on main shaft 14, and connecting lever is worn on (17) Crossed bearing pin (18), pivot pin (18) by Interal fixation in frame (1), connecting plate (16) Two ends be connected on rocking arm (15) and connecting lever (17), connecting lever (17) is connected to absolutely Edge pull bar (4).
The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase the most according to claim 7 is longitudinally arranged Device, it is characterised in that: be provided with after described frame 1 splitting lock cushioning connecting lever (8) and Oil bumper (9).
The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase the most according to claim 8 is longitudinally arranged Device, it is characterised in that: it is fixed with on described lower outlet convex and insulated support (6) and turns Run in (5).
The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase the most according to claim 8 is longitudinally arranged Device, it is characterised in that: the opening of the described threaded insert in upper convex backward, in lower convex Threaded insert Open Side Down.
CN201610373522.5A 2016-05-30 2016-05-30 Wall-mounted type three-phase longitudinally-arranged medium-voltage vacuum circuit breaker Pending CN105845489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610373522.5A CN105845489A (en) 2016-05-30 2016-05-30 Wall-mounted type three-phase longitudinally-arranged medium-voltage vacuum circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610373522.5A CN105845489A (en) 2016-05-30 2016-05-30 Wall-mounted type three-phase longitudinally-arranged medium-voltage vacuum circuit breaker

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Publication Number Publication Date
CN105845489A true CN105845489A (en) 2016-08-10

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106158497A (en) * 2016-09-13 2016-11-23 亚洲电力设备(深圳)股份有限公司 Vacuum circuit breaker
CN110021496A (en) * 2019-05-20 2019-07-16 郭海涛 A kind of high-voltage circuitbreaker convenient for wiring

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101425425A (en) * 2008-11-28 2009-05-06 姜全海 Fixed side-installed vacuum circuit breaker
CN201282072Y (en) * 2008-09-27 2009-07-29 中国西电电气股份有限公司 Wall hanging type high-voltage vacuum switch
CN201282071Y (en) * 2008-09-27 2009-07-29 中国西电电气股份有限公司 Wall hanging type high-voltage vacuum circuit breaker
WO2014039217A1 (en) * 2012-09-06 2014-03-13 Abb Technology Ag Contact alignment structure for high-voltage dead tank circuit breakers
CN205789686U (en) * 2016-05-30 2016-12-07 宁波甬新东方电气有限公司 The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase is longitudinally arranged

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201282072Y (en) * 2008-09-27 2009-07-29 中国西电电气股份有限公司 Wall hanging type high-voltage vacuum switch
CN201282071Y (en) * 2008-09-27 2009-07-29 中国西电电气股份有限公司 Wall hanging type high-voltage vacuum circuit breaker
CN101425425A (en) * 2008-11-28 2009-05-06 姜全海 Fixed side-installed vacuum circuit breaker
WO2014039217A1 (en) * 2012-09-06 2014-03-13 Abb Technology Ag Contact alignment structure for high-voltage dead tank circuit breakers
CN205789686U (en) * 2016-05-30 2016-12-07 宁波甬新东方电气有限公司 The middle pressure vacuum circuit breaker that a kind of wall-mounted three-phase is longitudinally arranged

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106158497A (en) * 2016-09-13 2016-11-23 亚洲电力设备(深圳)股份有限公司 Vacuum circuit breaker
CN110021496A (en) * 2019-05-20 2019-07-16 郭海涛 A kind of high-voltage circuitbreaker convenient for wiring
CN110021496B (en) * 2019-05-20 2019-12-13 广东电网有限责任公司电力科学研究院 high-voltage circuit breaker convenient to wiring

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Application publication date: 20160810