CN101710546A - High-voltage three-pole AC vacuum contactor - Google Patents
High-voltage three-pole AC vacuum contactor Download PDFInfo
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- CN101710546A CN101710546A CN200910222579A CN200910222579A CN101710546A CN 101710546 A CN101710546 A CN 101710546A CN 200910222579 A CN200910222579 A CN 200910222579A CN 200910222579 A CN200910222579 A CN 200910222579A CN 101710546 A CN101710546 A CN 101710546A
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Abstract
The invention relates to a high-voltage three-pole AC vacuum contactor which can be frequently operated by closing and separating and is suitable for a power supply and a distribution system with a rated voltage of 24KV. The high-voltage three-pole AC vacuum contactor adopts the technical scheme that a static guide rod and an electrokinetic guide rod are arranged in a vacuum arc extinguish chamber; the upper end of the static guide rod is connected with a fixed conducting bar fixed on the upper part of an insulation frame; a moving contact welded at the upper end of the electrokinetic guide rod is vertically opposite to a fixed contact welded at the lower end of the static guide rod, and the two contacts can be contacted and separated; the lower end of the electrokinetic guide rod extends out of the vacuum arc extinguish chamber and is connected with a moving conducting bar; and the extending end of the electrokinetic guide rod is connected with an insulator. The high-voltage three-pole AC vacuum contactor is characterized in that the lower end of the insulator is connected with a moving iron plate; the moving iron plate is connected with one end of a tripping spring, while the other end of the tripping spring is connected with a fixed iron plate; the fixed iron plate is fixed on the insulation frame, and the lower part of the fixed iron plate is connected with a fixed iron core; the upper part of the moving iron plate is connected with a moving iron core, and the moving iron core and the fixed iron core are vertically opposite to each other and a certain distance is reserved between the moving iron core and the fixed iron core; and a coil is sleeved outside the moving iron core and the fixed iron core. The invention has the advantages of skillful structure, reliable working, high response speed and wide application range.
Description
Technical field
The present invention relates to a kind of high-voltage three-pole AC vacuum contactor, specifically a kind of rated voltage that is suitable for is the high-voltage three-pole AC vacuum contactor that can frequently close the branch operation that uses in the 24KV power supply-distribution system.
Background technology
Along with developing rapidly of Chinese national economy and power industry, original voltage is the 24kV power supply for the 10kV power supply network will progressively be upgraded to voltage, the vacuum contactor that closes power consumption equipments such as branch motor, transformer, capacitor in the 24kV power supply-distribution system is at present domestic also not to have a manufacturer production and satisfy, the domestic blank that also is in presses for rated voltage satisfies the user for the 24kV high-voltage three-pole AC vacuum contactor the demand of developing for this reason.
Summary of the invention
The objective of the invention is at weak point of the prior art, provide a kind of structure ingenious, reliable operation, response speed is fast, high-voltage three-pole AC vacuum contactor applied widely, this vacuum contactor can satisfy in the power supply-distribution system that rated voltage is 24KV and use.
According to technical scheme provided by the present invention, described high-voltage three-pole AC vacuum contactor comprises Insulating frame, vacuum interrupter, it is indoor that static guide rod and moving electric guide rod are arranged on vacuum extinction, and the static conductive rod upper end connects quiet busbar, and quiet busbar is fixed on Insulating frame top; The moving contact of moving conductive rod upper end is relative up and down with the fixed contact of static lower end of the guide rod, but contact separation, the moving conductive rod lower end is stretched out vacuum interrupter and is connected moving conductive row, the external part of moving conductive rod connects insulator, it is characterized in that the lower end of insulator is connected with moving iron plate, moving iron plate is connected with tripping spring, the other end of tripping spring is connected with quiet iron plate, and quiet iron plate is fixed on the Insulating frame; Quiet iron plate bottom connects static iron core, and moving iron plate top connects moving iron core, and moving iron core is relative up and down with static iron core and leave certain distance, and the outside of moving iron core and static iron core is with coil.
As a further improvement on the present invention, the external part cylinder lever connecting rod of described moving conductive rod, the upper end central fovea of insulator is provided with inner chamber, and the inner chamber upper end is provided with internal thread, and the inner chamber lower end is provided with interior step; Pull bar is contained in the inner chamber of insulator, pull bar is provided with ring-shaped step, pine is with connecting ring and touch spring on the pull bar, connecting ring is positioned at the ring-shaped step top, touch spring is positioned at the ring-shaped step below, and connecting ring is screwed onto insulator inner chamber upper end, and pull bar and touch spring are fixed in the insulator inner chamber, the touch spring upper end contacts the ring-shaped step on the pull bar, and the touch spring lower end is pressed on the interior platform level of insulator.
As a further improvement on the present invention, the external diameter of described insulator is 100～120mm, and insulator upper end periphery is provided with cluster parachute, and the number of cluster parachute is preferably 6～7.
As a further improvement on the present invention, the shell of described vacuum interrupter adopts ceramic material, and the outer surface of shell is made as corrugated, is covered with silastic-layer on the outer surface of shell.
As a further improvement on the present invention, described static iron core adopts U-shaped core, to improve magnetic force.
As a further improvement on the present invention, the lower end of described moving conductive rod is conductive clip fixedly, and conductive clip is connected with moving conductive row by flexible conductor, and moving conductive row is fixed on the middle part of Insulating frame.
As a further improvement on the present invention, the upper end of described moving conductive rod and the lower end of static conductive rod are positioned at vacuum interrupter, are welded with moving contact in the upper end of moving conductive rod, are welded with fixed contact in the lower end of static conductive rod, moving contact is relative up and down with fixed contact, but contact separation.
It is the occasion of using in the 24KV power supply-distribution system that can frequently close the branch operation that the present invention can be suitable for rated voltage, and it has following advantage:
1. simple in structure, design is light and handy, reliable operation, and the traditional form that structurally adopts Insulating frame and retort stand to arrange up and down, cost of manufacture is low, produces easy to maintenancely, and operating current can be to 800A in the 24KV electric power system.
2. insulator structure is ingenious rationally, because touch spring is near from the moving contact distance, when closing a floodgate fast, has greatly reduced closing rebound, and touch spring is fixed on the centre of insulator simultaneously, has guaranteed the electric insulation safe distance.
3. static iron core adopts U-shaped core, effectively increase magnetic force, static iron core and moving iron core move both vertically up and down, sucting speed is fast, the suction-combining force is big, efficient is high, and mostly the electromagnetic operating mechanism that has overcome existing vacuum contactor is that horizontal movement drives axle and rotates low, the slow-footed shortcoming of efficient that back change direction becomes to move both vertically.
4. the shell of vacuum interrupter adopts ceramic material, the outer surface of shell is made as corrugated, be covered with silastic-layer on the outer surface of shell, can when satisfying electric clearance and creepage distance, play the effect of damping, it is less that the configuration design of vacuum interrupter is got, thereby can make whole height of the present invention design lowlyer.
5. spaced apart of the present invention is 225 millimeters, and die opening is 205 millimeters, and electric clearance is greater than 180 millimeters, creepage distance is greater than 320 millimeters, and industrial frequency withstand voltage is greater than 65KV, and impulse withstand voltage is greater than 125KV, be up to state standards fully, the present invention is optimization and miniaturized design.
6. insulating part profile among the present invention and material all are special, promptly adopt high pressure resistant, high-intensity SMC long fibre moulded plastic compacting to form, and Insulating frame profile inner surface is designed to ripple, increased creepage distance, improve withstand voltage level, can satisfy the instructions for use of rated voltage 24KV grade.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that A-A among Fig. 1 is to cutaway view
Fig. 3 is a "on" position schematic diagram of the present invention.
Fig. 4 is a gate-dividing state schematic diagram of the present invention.
Embodiment
The present invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure, the present invention mainly comprises parts such as quiet busbar 1, Insulating frame 2, vacuum interrupter 3, moving electric guide rod 4, conductive clip 5, pull bar 6, connecting ring 7, touch spring 8, insulator 9, screw rod 10, moving iron plate 11, retort stand 12, quiet iron plate 13, static iron core 14, moving iron core 15, coil 16, tripping spring 17, spring base 18, adjusting screw(rod) 19, flexible conductor 20, moving conductive row 21, moving contact 24, fixed contact 25 and static conductive rod 26.
As Fig. 1～shown in Figure 4, static guide rod 26 and moving electric guide rod 4 are arranged in the vacuum interrupter 3, and the head of static conductive rod 26 is fixed quiet busbar 1, and quiet busbar 1 is fixed on Insulating frame 2 tops, and Insulating frame 2 is by being bolted on the retort stand 12; The moving contact 24 of moving conductive rod 4 upper ends welding is relative up and down with the fixed contact 25 of static guide rod 26 lower ends welding, but contact separation, vacuum interrupter 3 is stretched out in the lower end of moving conductive rod 4, and the external part afterbody of moving conductive rod 4 is provided with internal thread, and pull bar 6 upper ends are threaded with moving conductive rod 4 lower ends; The upper end central fovea of insulator 9 is provided with axial inner chamber, and the inner chamber upper end is provided with internal thread, and the inner chamber lower end is provided with interior step; Pull bar 6 is contained in the inner chamber of insulator 9, pull bar 6 is provided with ring-shaped step, pine is with connecting ring 7 and touch spring 8 on the pull bar 6, connecting ring 7 is positioned at the ring-shaped step top, touch spring 8 is positioned at the ring-shaped step below, and connecting ring 7 spiral shells are contained in insulator 9 inner chambers upper end, and pull bar 6 and touch spring 8 are fixed in insulator 9 inner chambers, touch spring 8 upper ends contact the ring-shaped step on the pull bar 6, and touch spring 8 lower ends are pressed on the interior platform level of insulator 9; The lower end of insulator 9 is connected with moving iron plate 11 with screw rod 10, moving iron plate 11 is connected with tripping spring 17, the other end of tripping spring 17 is enclosed within on the spring base 18, and spring base 18 is connected with quiet iron plate 13 by adjusting screw(rod) 19, and quiet iron plate 13 is by being bolted on the Insulating frame 2; Connect static iron core 14 by bolt on quiet iron plate 13 lower surfaces, connect moving iron core 15 by bolt on moving iron plate 11 upper surfaces, moving iron core 15 is relative up and down with static iron core 14 and leave certain distance, and the outside of moving iron core 15 and static iron core 14 is with coil 16.For improving magnetic force, the described static iron core 14 preferred U-shaped cores that adopt.
The external diameter of described insulator 9 is 100～120mm, and insulator 9 upper end peripheries are provided with cluster parachute, and the number of cluster parachute is 6～7.
The shell 22 of described vacuum interrupter 3 adopts ceramic material, and the outer surface of shell 22 is made as corrugated, is covered with silastic-layer 23 on the outer surface of shell 22.
Fixing conductive clip 5 on the bottom of described moving conductive rod 4, conductive clip 5 is connected with moving conductive row 21 by flexible conductor 20, and moving conductive is arranged 21 middle parts that are fixed on framework 2.
The lower end of the upper end of moving conductive rod 4 and static conductive rod 26 is positioned at vacuum interrupter 3, is welded with moving contact 24 in the upper end of moving conductive rod 4, is welded with fixed contact 25 in the lower end of static conductive rod 26, and moving contact 24 is relative up and down with fixed contact 25, but contact separation.
The course of work of the present invention and operation principle are as follows:
As shown in Figure 3, when the needs high-voltage three-pole AC vacuum contactor closes a floodgate, when to be moving contact 24 with fixed contact 25 need closed the contact, the power supply of closing coil 16, coil 16 generates an electromagnetic field, in electromagnetic field, static iron core 14 and moving iron core 15 induce electromagnetic force, moving iron core 15 is by adhesive and move upward, the moving iron plate 11 of moving iron core 15 drives, insulator 9, touch spring 8, pull bar 6, moving conductive rod 4, moving contact 24 move upward, thereby make moving contact 24 and fixed contact 25 closed contacts, realize the combined floodgate of high-voltage three-pole AC vacuum contactor; Interior step in insulator 9 inner chambers promotes touch spring 8 simultaneously, touch spring 8 pushing drawing rods 6, and pull bar 6 promotes moving conductive rod 4, when moving contact 24 is contacted with fixed contact 25 bigger contact pressure is arranged, and can reduce closing rebound.
As shown in Figure 4, when needs high-voltage three-pole AC vacuum contactor separating brake, disconnect the power supply in the coil 16, magnetic force in the moving iron core 15 disappears, under the effect of tripping spring 17, moving iron plate 11 drive insulators 9, connecting ring 7, pull bar 6, moving conductive rod 4, moving contact 24 move downward, and moving contact 24 is separated with fixed contact 25, realize the separating brake action of vacuum contactor.
Claims (8)
1. high-voltage three-pole AC vacuum contactor, comprise Insulating frame (2), vacuum interrupter (3), static guide rod (26) and moving electric guide rod (4) are arranged in the vacuum interrupter (3), and static conductive rod (26) upper end connects quiet busbar (1), and quiet busbar (1) is fixed on Insulating frame (2) top; The moving contact (24) of moving conductive rod (4) upper end is relative up and down with the fixed contact (25) of static guide rod (26) lower end, but contact separation, moving conductive rod (4) lower end is stretched out vacuum interrupter (3) and is connected moving conductive row (21), the external part of moving conductive rod (4) connects insulator (9), it is characterized in that, the lower end of insulator (9) is connected with moving iron plate (11), moving iron plate (11) is connected with tripping spring (17), the other end of tripping spring (17) is connected with quiet iron plate (13), and quiet iron plate (13) is fixed on the Insulating frame (2); Quiet iron plate (13) bottom connects static iron core (14), and moving iron plate (11) top connects moving iron core (15), and moving iron core (15) is relative up and down with static iron core (14) and leave certain distance, and the outside of moving iron core (15) and static iron core (14) is with coil (16).
2. high-voltage three-pole AC vacuum contactor as claimed in claim 1, its feature also is, the external part cylinder lever connecting rod (6) of described moving conductive rod (4), and the upper end central fovea of insulator (9) is provided with inner chamber, the inner chamber upper end is provided with internal thread, and the inner chamber lower end is provided with interior step; Pull bar (6) is contained in the inner chamber of insulator (9), pull bar (6) is provided with ring-shaped step, pull bar (6) is gone up pine and is with connecting ring (7) and touch spring (8), connecting ring (7) is positioned at the ring-shaped step top, touch spring (8) is positioned at the ring-shaped step below, connecting ring (7) spiral shell is contained in insulator (9) inner chamber upper end, pull bar (6) and touch spring (8) are fixed in insulator (9) inner chamber, touch spring (8) upper end contacts the ring-shaped step on the pull bar (6), and touch spring (8) lower end is pressed on the interior platform level of insulator (9).
3. high-voltage three-pole AC vacuum contactor as claimed in claim 1 or 2, its feature are that also the external diameter of described insulator (9) is 100～120mm, and insulator (9) upper end periphery is provided with cluster parachute.
4. high-voltage three-pole AC vacuum contactor as claimed in claim 1 or 2, its feature also is, the shell (22) of described vacuum interrupter (3) adopts ceramic material, and the outer surface of shell (22) is made as corrugated, is covered with silastic-layer (23) on the outer surface of shell (22).
5. high-voltage three-pole AC vacuum contactor as claimed in claim 1 or 2, its feature are that also described static iron core (14) adopts U-shaped core.
6. high-voltage three-pole AC vacuum contactor as claimed in claim 1 or 2, its feature also is, the lower end of described moving conductive rod (4) is conductive clip (5) fixedly, and conductive clip (5) is connected with moving conductive row (21) by flexible conductor (20), and moving conductive row (21) is fixed on the middle part of Insulating frame (2).
7. high-voltage three-pole AC vacuum contactor as claimed in claim 1 or 2, its feature also is, the lower end of the upper end of described moving conductive rod (4) and static conductive rod (26) is positioned at vacuum interrupter (3), be welded with moving contact (24) in the upper end of moving conductive rod (4), be welded with fixed contact (25) in the lower end of static conductive rod (26), moving contact (24) is relative up and down with fixed contact (25), but contact separation.
8. high-voltage three-pole AC vacuum contactor as claimed in claim 3, its feature are that also the number of described cluster parachute is 6～7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102225795A CN101710546B (en) | 2009-11-20 | 2009-11-20 | High-voltage three-pole AC vacuum contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102225795A CN101710546B (en) | 2009-11-20 | 2009-11-20 | High-voltage three-pole AC vacuum contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101710546A true CN101710546A (en) | 2010-05-19 |
| CN101710546B CN101710546B (en) | 2012-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102225795A Expired - Fee Related CN101710546B (en) | 2009-11-20 | 2009-11-20 | High-voltage three-pole AC vacuum contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101710546B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107044A (en) * | 2011-11-10 | 2013-05-15 | 佘天白 | Telescopic cavity type vacuum switch |
| CN108597915A (en) * | 2018-04-28 | 2018-09-28 | 福建中能电气有限公司 | A kind of conducting heavy current structure |
| CN109545616A (en) * | 2018-12-29 | 2019-03-29 | 昆山瑞普电气有限公司 | Microminiature single phase ac high-pressure vacuum contactor |
| CN113394046A (en) * | 2021-06-25 | 2021-09-14 | 西电宝鸡电气有限公司 | Vacuum contactor for 3.6kV intermediate frequency (500Hz system) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4021945C2 (en) * | 1990-07-10 | 1999-12-30 | Alstom Sachsenwerk Gmbh | Switching device for interrupting fault currents |
| RU2074438C1 (en) * | 1994-10-14 | 1997-02-27 | Всероссийский электротехнический институт им.В.И.Ленина | Electromagnetic drive for switches |
| CN2859791Y (en) * | 2006-01-06 | 2007-01-17 | 湛江高压电器有限公司 | Outdoor high-voltage AC vacuum breaker |
| CN201616379U (en) * | 2009-12-15 | 2010-10-27 | 上海磁浮交通发展有限公司 | Long-life three-phase alternating-current high-voltage vacuum contactor |
-
2009
- 2009-11-20 CN CN2009102225795A patent/CN101710546B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107044A (en) * | 2011-11-10 | 2013-05-15 | 佘天白 | Telescopic cavity type vacuum switch |
| CN108597915A (en) * | 2018-04-28 | 2018-09-28 | 福建中能电气有限公司 | A kind of conducting heavy current structure |
| CN109545616A (en) * | 2018-12-29 | 2019-03-29 | 昆山瑞普电气有限公司 | Microminiature single phase ac high-pressure vacuum contactor |
| CN109545616B (en) * | 2018-12-29 | 2024-02-27 | 昆山瑞普电气有限公司 | Ultra-small single-phase alternating-current high-voltage vacuum contactor |
| CN113394046A (en) * | 2021-06-25 | 2021-09-14 | 西电宝鸡电气有限公司 | Vacuum contactor for 3.6kV intermediate frequency (500Hz system) |
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| Publication number | Publication date |
|---|---|
| CN101710546B (en) | 2012-01-11 |
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Granted publication date: 20120111 Termination date: 20181120 |
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