CN109637883B - Switching device - Google Patents
Switching device Download PDFInfo
- Publication number
- CN109637883B CN109637883B CN201811375475.3A CN201811375475A CN109637883B CN 109637883 B CN109637883 B CN 109637883B CN 201811375475 A CN201811375475 A CN 201811375475A CN 109637883 B CN109637883 B CN 109637883B
- Authority
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- China
- Prior art keywords
- switch
- isolating
- static contact
- fixed
- transmission shaft
- 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.)
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Links
- 230000003068 static effect Effects 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims abstract description 55
- 238000009413 insulation Methods 0.000 claims abstract description 38
- 238000002955 isolation Methods 0.000 claims abstract description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- 229910052802 copper Inorganic materials 0.000 claims description 21
- 239000010949 copper Substances 0.000 claims description 21
- 230000015556 catabolic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention discloses a switch device, which comprises a main switch module and a three-station isolation grounding switch module, wherein the main switch module comprises a supporting frame, an insulation protection module, a main transmission shaft, a transmission assembly for independently connecting the main transmission shaft with the insulation protection module of each phase line and a grounding static contact fixedly arranged on the supporting frame, the three-station isolation grounding switch module comprises a mounting frame, a switch transmission shaft, an isolation switch assembly and an isolation static contact which are fixedly connected with the supporting frame, the static end static contact, the isolation static contact and the grounding static contact of the insulation protection module are positioned on a cylindrical surface taking the switch transmission shaft as an axis, so that the isolation switch assembly rotates by taking the switch transmission shaft as the axis, and the static end static contact, the isolation static contact and the grounding static contact of the insulation protection module of each phase line can be connected or disconnected in pairs respectively by changing the rotation angle of the isolation switch assembly.
Description
Technical Field
The invention relates to the technical field of electrical control equipment, in particular to a switching device.
Background
The existing switch device is in a fixed installation mode and a handcart pushing and discharging installation mode, obvious and easily visible fracture cannot be formed, meanwhile, the fracture formed by the switch moving knife is only one, namely, whether the switch moving knife is positioned at the isolated position of the switch closing of the grounding switch, the switch closing of the isolating switch or the separation of the main fracture, one end of the switch moving knife is still connected with a load, the danger of high-voltage breakdown still exists, and hidden danger still exists in the overhaul or maintenance process, so that the switch device with high safety, reliability and good insulating property is urgently needed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a switching device which effectively reduces the probability of high-voltage breakdown.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a switching device, includes main switch module and three station isolation earthing switch module, main switch module includes braced frame, sets up insulating protection module in braced frame, rotates the main drive shaft who connects in braced frame front end, is used for the transmission subassembly that the insulating protection module of main drive shaft and each phase line is connected alone and the earthing static contact of fixed setting on braced frame, three station isolation earthing switch module includes the mounting bracket that is connected with braced frame fixed, rotates the switch transmission shaft of being connected on the mounting bracket, is fixed in the isolating switch subassembly on the switch transmission shaft and sets up the isolating static contact in isolating switch subassembly below, the dead end static contact, isolating static contact and the earthing static contact of insulating protection module are located the face of cylinder that uses the switch transmission shaft as the axle center, the switch transmission shaft drives the isolating switch subassembly and rotates as the axle center, utilizes the isolating switch subassembly to realize two liang of connection or disconnection with the dead end static contact, the isolating static contact and the earthing static contact of the insulating protection module of each phase line of three-phase respectively.
Further, the isolating switch assembly comprises an isolating knife sleeve and an isolating switch moving knife arranged in the isolating knife sleeve, the isolating knife sleeve and the isolating switch moving knife are in arc shapes, and the middle of the isolating knife sleeve is fixedly connected with the switch transmission shaft.
Further, the insulation protection module comprises an insulation box with a U-shaped concave cavity inside and a vacuum arc-extinguishing chamber fixed in the U-shaped concave cavity, and the static end of the vacuum arc-extinguishing chamber is fixedly connected with a static end static contact of the insulation protection module.
Further, the insulating box is the U-shaped structure of above, the front and below all open-ended, the inside upper end of insulating box is provided with the U type base that is used for fixed vacuum interrupter, and the inside lower extreme of insulating box sets up the backup pad that is used for supporting vacuum interrupter, be provided with the through-hole in the backup pad, this through-hole is worn to locate by the quiet end static contact.
Further, the transmission assembly comprises an insulating pull rod, a crank, a rocker arm, a fixing seat and a transmission rod, wherein the crank is fixed on the main transmission shaft, the movable end of the crank is hinged with one end of the insulating pull rod, the other end of the insulating pull rod is hinged with one end of the rocker arm, the other end of the rocker arm is hinged with one end of the transmission rod, the other end of the transmission rod is fixedly connected with the movable end of the vacuum arc extinguishing chamber, the middle part of the rocker arm is rotationally connected onto the fixing seat, and the fixing seat is fixed on the top end of the insulating box.
Further, the main switch module further comprises a bearing seat, the bearing seat is fixed on the cross beam of the supporting frame, and the main transmission shaft is rotatably connected to the bearing seat.
Further, the main switch module further comprises a grounding copper bar, wherein the grounding copper bar is fixed at one end of a cross beam of the supporting frame, and the grounding static contact of each phase is sequentially fixed at the lower end of the cross beam.
Further, the mounting frame comprises a front mounting plate, a mounting bracket and a rear mounting plate, wherein the front mounting plate and the rear mounting plate are respectively fixed on two sides of the lower end of the supporting frame, and the mounting bracket is fixed between the bottom of the front mounting plate and the bottom of the rear mounting plate.
Further, the three-station isolation grounding switch module further comprises a load connection copper bar, wherein the load connection copper bar is fixed on the bottom of the mounting bracket and is fixedly connected with the corresponding isolation fixed contact, and the bottom end of the load connection copper bar is connected with the load side.
Further, each phase of the isolation static contact is sequentially fixed at the top of the mounting bracket.
The beneficial effects of the invention are as follows: the static end static contact, the isolation static contact and the grounding static contact of the insulation protection module are positioned on a cylindrical surface taking the switch transmission shaft as an axis, the switch transmission shaft is utilized to drive the isolation switch assembly to rotate by taking the switch transmission shaft as an axis, and the static end static contact, the isolation static contact and the grounding static contact of the insulation protection module of each three-phase line can be connected or disconnected in pairs by changing the rotation angle of the isolation switch assembly, so that the operation of the switch is simple, and the insulation performance is effectively improved.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the structure of a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of the closing state of the isolating switch of the present invention;
FIG. 3 is a schematic diagram of the present invention in a ground isolation open state;
FIG. 4 is a schematic perspective view of the present invention;
FIG. 5 is a schematic diagram of a three-position isolated ground switch module of the present invention;
FIG. 6 is a schematic illustration of the isolating moving blade structure of the isolating switch assembly of the present invention;
FIG. 7 is a schematic diagram of the structure of the main switch module of the present invention;
Fig. 8 is a schematic structural view of the insulation case of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the concept, specific structure and technical effects thereof will be clearly and completely described below in connection with the embodiments and the drawings so as to fully understand the objects, features and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention.
Referring to fig. 1 to 4, a preferred embodiment is a switching device, which comprises a main switch module and a three-station isolated grounding switch module, the main switch module comprises a support frame 11, an insulating protection module 12 arranged in the support frame 11, a main transmission shaft 13 rotatably connected to the front end of the support frame 11, a transmission assembly 14 for separately connecting the main transmission shaft 13 with the insulating protection module 12 of each phase line, and a grounding static contact 15 fixedly arranged on the support frame 11, the three-station isolated grounding switch module comprises a mounting frame 21 fixedly connected with the support frame 11, a switch transmission shaft 22 rotatably connected with the mounting frame 21, an isolating switch assembly 23 fixed on the switch transmission shaft 22, and an isolating static contact 24 arranged below the isolating switch assembly 23, the static end static contact 123, the isolating static contact 24 and the grounding static contact 15 of the insulating protection module 12 are positioned on a cylindrical surface taking the switch transmission shaft 22 as an axis, and the switch transmission shaft 22 drives the isolating switch assembly 23 to rotate around the switch 22 as an axis, and the isolating transmission shaft 23 is utilized to disconnect the insulating static contact 123 of each phase line from the two static contacts 12 or the two static contacts 15 respectively.
Principle of operation of the disconnector assembly 23:
1) Referring to fig. 1, when the isolating switch assembly 23 is in the middle position, that is, both ends of the isolating switch assembly 23 are not connected with the fixed end fixed contact 123, the isolating fixed contact 24 or the grounding fixed contact 15 of the insulating protection module 12 corresponding to the phase line, the two ends of the isolating switch assembly 23 are all broken, that is, both ends of the isolating switch assembly 23 are not connected with the load or the three-phase power supply and are in the grounding isolation disconnection state, and meanwhile, the distance between the three-phase power supply side and the load is increased, so that the possibility of high-voltage breakdown of the power supply is effectively reduced;
2) Referring to fig. 2, by rotating the isolating earthing switch transmission shaft 22, one end of the isolating switch assembly 23 is connected with the fixed end fixed contact 123 of the insulating protection module 12, and the other end is connected with the isolating fixed contact 24, so that the isolating switch is in a closing state;
3) Referring to fig. 3, by rotating the isolating earthing switch transmission shaft 22, one end of the isolating switch assembly 23 is connected to the stationary end stationary contact 123 of the insulating protection module 12, and the other end is connected to the earthing stationary contact 15, so that the earthing switch is in an on state.
Because the fixed end fixed contact 123, the isolation fixed contact 24 and the grounding fixed contact 15 of the insulating protection module 12 are located on the cylindrical surface taking the switch transmission shaft 22 as the axis, in order to achieve convenient operation and safety, the fixed end fixed contact 123, the isolation fixed contact 24 and the grounding fixed contact 15 of the insulating protection module 12 of each three-phase line are respectively distributed on the circumference taking the center of rotation of the corresponding isolating switch assembly 23 as the center, namely, the distances between the fixed end fixed contact 123, the isolation fixed contact 24 and the grounding fixed contact 15 of the insulating protection module 12 of each three-phase line and the center of rotation of the corresponding isolating switch assembly 23 are the same, and are uniformly distributed on the circumference taking the distance as the radius, the circumferential angle between every two of the fixed end fixed contact 123, the isolation fixed contact 24 and the grounding fixed contact 15 of the insulating protection module 12 of each three-phase line is 120 degrees, the circumferential angle characteristic is combined with the three working states of the isolating switch assembly 23, the rotation angle of each isolating switch assembly 23 can be limited to be 60 degrees, when the isolating switch assembly 23 is in the open state, the grounding switch assembly is in the open state, the forward or the reverse rotation state can be further designed, and the closing state can be further ensured, and the closing state can be ensured.
In addition, two ends of the isolating switch assembly 23 can be respectively connected with the grounding fixed contact 15 and the fixed end fixed contact 123 of the insulating protection module 12, so as to realize connection between the three-phase power supply side and the grounding end, but the connection state is not a working state required in the embodiment, so that the connection state is not discussed.
Preferably, referring to fig. 5 and 6, in order to enable two ends of the isolating switch assembly 23 to be connected or disconnected simultaneously in a rotation process, and ensure the synchronism of the connection or disconnection process of the two ends of the isolating switch assembly 23 and corresponding contacts, the isolating switch assembly 23 includes an isolating knife sleeve 231 and an isolating switch moving knife 232 disposed inside the isolating knife sleeve 231, the isolating knife sleeve 231 and the isolating switch moving knife 232 are both in a circular arc shape, the middle part of the isolating knife sleeve 231 is fixedly connected with the switch transmission shaft 22, the isolating switch moving knife 232 is wrapped by the isolating knife sleeve 231, and insulation performance between three phases can be improved, wherein the isolating switch assembly 23 utilizes the isolating switch moving knife 232 to achieve connection between two fixed contacts 123, 24 and 15 of the insulating protection module 12 of each phase line of three phases, and achieve an isolating switch-on state and a grounding switch-on state of the switching device.
Preferably, the mounting frame 21 includes a front mounting plate 211, a mounting bracket 212, and a rear mounting plate 213, the front and rear mounting plates 211 and 213 being respectively fixed to both sides of the lower end of the support frame 11, the mounting bracket 212 being fixed between the bottom of the front mounting plate 211 and the bottom of the rear mounting plate 213.
Preferably, the three-station isolation grounding switch module further comprises a load connection copper bar 25, wherein the load connection copper bar 25 is fixed on the bottom of the mounting bracket 212 and is fixedly connected with the corresponding isolation fixed contact 24, and the bottom end of the load connection copper bar 25 is connected with the load side.
Preferably, the isolated static contacts 24 of each phase are in turn secured to the top of the mounting bracket 212.
Preferably, referring to fig. 7 and 8, in order to improve insulation between three phases, the insulation protection module 12 includes an insulation box 121 with a U-shaped cavity inside and a vacuum arc-extinguishing chamber 122 fixed in the U-shaped cavity, a static end of the vacuum arc-extinguishing chamber 122 is fixedly connected with a static end fixed contact 123 of the insulation protection module 12, where the insulation box 121 is molded by casting epoxy resin, the U-shaped cavity inside the insulation box 121 actually adopts a semi-cylindrical shape, and the U-shaped cavity is used to wrap the vacuum arc-extinguishing chamber 122 inside the insulation box, so that insulation performance between three phases can be effectively improved, and at the same time, the inter-phase distance can be further reduced, so that the compact switching device can be more compact, at the same time, the U-shaped cavity is adopted, an electric field can be uniformly radiated along a radius direction of the semi-cylindrical body, so that the electric field is uniformly distributed, and partial discharge can be avoided, thereby improving insulation performance, and at the same time, the insulation box 121 adopts a design of the U-shaped cavity, so that the overall thickness is uniform, thereby effectively reducing material cost and improving technological performance.
Preferably, the insulation protection module 12 further includes a copper flexible connection member 124 connected to the movable end of the vacuum interrupter 122, and a power connection copper bar 125 fixedly connected to the copper flexible connection member 124, wherein the power connection copper bar 125 is connected to the three-phase power side.
Preferably, in this embodiment, the insulation box 121 has a U-shaped structure with openings at the upper surface, the front surface and the lower surface, a U-shaped base 1211 for fixing the vacuum arc-extinguishing chamber 122 is provided at the upper end of the inside of the insulation box 121, a support plate 1212 for supporting the vacuum arc-extinguishing chamber 122 is provided at the lower end of the inside of the insulation box 121, a through hole is provided on the support plate 1212, and the stationary contact 123 is disposed through the through hole, in addition, a circumferential skirt 1214 in the circumferential direction is provided at the upper and lower ends of the outside of the insulation box 121, and an axial skirt 1213 parallel to the axis of the semi-cylinder of the insulation box 121 is provided at the middle end of the outside, which is beneficial for improving the insulation climbing distance of the high-voltage part to the ground, and meanwhile, the insulation box 121 can adopt a structure with smaller volume and lighter weight for convenience in carrying and installation.
Preferably, the transmission assembly 14 includes an insulating pull rod 141, a crank 142, a rocker 143, a fixing seat 144 and a transmission rod 145, the crank 142 is fixed on the main transmission shaft 13, a moving end of the crank 142 is hinged with one end of the insulating pull rod 141, the other end of the insulating pull rod 141 is hinged with one end of the rocker 143, the other end of the rocker 143 is hinged with one end of the transmission rod 145, the other end of the transmission rod 145 is fixedly connected with a moving end of the vacuum arc extinguishing chamber 122, the middle part of the rocker 143 is rotatably connected to the fixing seat 144, the fixing seat 144 is fixed on the top end of the insulating box 121, and the crank 142 can be driven to rotate by rotating the main transmission shaft 13, so that the insulating pull rod 141 can be pulled up and down. The swing arm 143 is swung up and down by the driving action, so that the driving rod 145 is driven to move up and down, thereby realizing the closing and opening functions of the vacuum interrupter 122, i.e., the closing and opening functions of the main switch module.
Preferably, to ensure the reliability of the circumferential rotation function of the main transmission shaft 13, the main switch module further includes a bearing housing 16, the bearing housing 16 is fixed on the cross beam of the support frame 11, the main transmission shaft 13 is rotatably connected to the bearing housing 16, and the bearing housing 16 is used for supporting the main transmission shaft 13 to realize the circumferential rotation function.
Preferably, the main switch module further includes a grounding copper bar 17, the grounding copper bar 17 is fixed at one end of the cross beam of the support frame 11, the grounding static contact 15 of each phase is sequentially fixed at the lower end of the cross beam, the back of the insulation box 121 is fixed on the support frame 11 through bolts, meanwhile, since the support frame 11 is connected with the grounding copper bar 17, the grounding copper bar 17 is connected with the ground, the insulation box 121 can be grounded, when conditions such as high voltage breakdown or electric leakage occur, high voltage or electric current can be led to the ground, and the reliability of the switch device is improved.
The present invention is not limited to the above embodiments, but is intended to be within the scope of the present invention as long as the technical effects of the present invention can be achieved by any same or similar means.
Claims (10)
1. A switching device, characterized by: the three-station isolated grounding switch module comprises a mounting frame (21) fixedly connected with the supporting frame (11), a switch transmission shaft (22) rotatably connected to the mounting frame (21), an isolating switch assembly (23) fixed to the switch transmission shaft (22) and an isolating static contact (24) arranged below the isolating switch assembly (23), wherein a static contact, the isolating static contact (24) and the grounding static contact (15) of the static end of the isolating switch assembly (12) are positioned on a cylindrical surface taking the switch transmission shaft (22) as an axle center, the switch transmission shaft (22) drives the isolating switch assembly (23) to rotate by taking the switch transmission shaft (22) as the axle center, and the isolating static contact (23) of each phase line is protected by the isolating switch assembly (12) by utilizing the isolating static contact (23) of the isolating switch transmission shaft (22), the isolating static contact (24) and the grounding static contact (15) are connected in pairs or disconnected in all.
2. The switching device of claim 1, wherein: the isolating switch assembly (23) comprises an isolating knife sleeve (231) and an isolating switch moving knife (232) arranged inside the isolating knife sleeve (231), the isolating knife sleeve (231) and the isolating switch moving knife (232) are in arc shapes, and the middle part of the isolating knife sleeve (231) is fixedly connected with the switch transmission shaft (22).
3. The switching device of claim 1, wherein: the insulation protection module (12) comprises an insulation box (121) with a U-shaped concave cavity inside and a vacuum arc-extinguishing chamber (122) fixed in the U-shaped concave cavity, and the static end of the vacuum arc-extinguishing chamber (122) is fixedly connected with a static end static contact (123) of the insulation protection module (12).
4. A switching device according to claim 3, characterized in that: the insulation box (121) is of a U-shaped structure with openings at the upper surface, the front surface and the lower surface, a U-shaped base (1211) used for fixing the vacuum arc-extinguishing chamber (122) is arranged at the upper end of the inside of the insulation box (121), a supporting plate (1212) used for supporting the vacuum arc-extinguishing chamber (122) is arranged at the lower end of the inside of the insulation box (121), a through hole is formed in the supporting plate (1212), and a static end static contact (123) penetrates through the through hole.
5. A switching device according to claim 3, characterized in that: the transmission assembly (14) comprises an insulating pull rod (141), a crank (142), a rocker arm (143), a fixing seat (144) and a transmission rod (145), wherein the crank (142) is fixed on a main transmission shaft (13), the movable end of the crank (142) is hinged with one end of the insulating pull rod (141), the other end of the insulating pull rod (141) is hinged with one end of the rocker arm (143), the other end of the rocker arm (143) is hinged with one end of the transmission rod (145), the other end of the transmission rod (145) is fixedly connected with the movable end of the vacuum arc extinguishing chamber (122), the middle part of the rocker arm (143) is rotationally connected with the fixing seat (144), and the fixing seat (144) is fixed on the top end of the insulating box (121).
6. The switching device of claim 1, wherein: the main switch module further comprises a bearing seat (16), the bearing seat (16) is fixed on a cross beam of the supporting frame (11), and the main transmission shaft (13) is rotatably connected to the bearing seat (16).
7. The switching device of claim 1, wherein: the main switch module further comprises a grounding copper bar (17), the grounding copper bar (17) is fixed at one end of a cross beam of the supporting frame (11), and the grounding static contact (15) of each phase is sequentially fixed at the lower end of the cross beam.
8. The switching device of claim 1, wherein: the mounting frame (21) comprises a front mounting plate (211), a mounting bracket (212) and a rear mounting plate (213), wherein the front mounting plate (211) and the rear mounting plate (213) are respectively fixed on two sides of the lower end of the supporting frame (11), and the mounting bracket (212) is fixed between the bottom of the front mounting plate (211) and the bottom of the rear mounting plate (213).
9. The switching device of claim 8, wherein: the three-station isolation grounding switch module further comprises a load connection copper bar (25), wherein the load connection copper bar (25) is fixed on the bottom of the mounting bracket (212) and is fixedly connected with the corresponding isolation fixed contact (24) respectively, and the bottom end of the load connection copper bar (25) is connected with the load side.
10. The switching device of claim 1, wherein: the isolation static contact (24) of each phase is sequentially fixed at the top of the mounting bracket (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375475.3A CN109637883B (en) | 2018-11-19 | 2018-11-19 | Switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375475.3A CN109637883B (en) | 2018-11-19 | 2018-11-19 | Switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109637883A CN109637883A (en) | 2019-04-16 |
| CN109637883B true CN109637883B (en) | 2024-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811375475.3A Active CN109637883B (en) | 2018-11-19 | 2018-11-19 | Switching device |
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| CN (1) | CN109637883B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133591A (en) * | 2020-09-29 | 2020-12-25 | 珠海许继电气有限公司 | A PT cabinet switch device |
| CN114284099A (en) * | 2021-11-12 | 2022-04-05 | 上海置信日港电气有限公司 | Five station switches of environmental protection gas insulation looped netowrk cabinet with isolating on |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209216873U (en) * | 2018-11-19 | 2019-08-06 | 珠海许继电气有限公司 | A kind of switching device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914301Y (en) * | 2006-04-21 | 2007-06-20 | 李继华 | Three-station rotary type indoor high-voltage isolating switch |
| CN103346504A (en) * | 2013-07-17 | 2013-10-09 | 宁波天安（集团）股份有限公司 | Three-position solid insulation switchgear |
| CN105551872A (en) * | 2016-01-18 | 2016-05-04 | 河北瀚泰电气设备制造有限公司 | Composite insulated middle-voltage isolating switch |
| CN105490199B (en) * | 2016-01-21 | 2018-06-05 | 上海攀森电气设备有限公司 | Withdrawable air insulation ring main unit |
| CN205666157U (en) * | 2016-05-25 | 2016-10-26 | 湖南长高电气有限公司 | Isolator and earthing switch structure |
| CN106373821A (en) * | 2016-11-17 | 2017-02-01 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Double-break disconnector switch module |
| CN206421984U (en) * | 2017-01-13 | 2017-08-18 | Abb瑞士股份有限公司 | Three-station |
| CN107993879A (en) * | 2017-12-22 | 2018-05-04 | 上海攀森电气设备有限公司 | A kind of three station protected type solid insulation vacuum switch module of disconnecting link formula |
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2018
- 2018-11-19 CN CN201811375475.3A patent/CN109637883B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209216873U (en) * | 2018-11-19 | 2019-08-06 | 珠海许继电气有限公司 | A kind of switching device |
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| CN109637883A (en) | 2019-04-16 |
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