CN112086896A - Five-station switch for environment-friendly gas insulation ring main unit - Google Patents
Five-station switch for environment-friendly gas insulation ring main unit Download PDFInfo
- Publication number
- CN112086896A CN112086896A CN202010965071.0A CN202010965071A CN112086896A CN 112086896 A CN112086896 A CN 112086896A CN 202010965071 A CN202010965071 A CN 202010965071A CN 112086896 A CN112086896 A CN 112086896A
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- China
- Prior art keywords
- station
- switch
- circuit breaker
- isolating
- isolating device
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- 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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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
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- 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
- H01H33/46—Interlocking mechanisms
- H01H33/52—Interlocking mechanisms for interlocking two or more switches
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- 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
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
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- 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
- H01H33/666—Operating arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0352—Gas-insulated switchgear for three phase switchgear
-
- 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
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H2033/566—Avoiding the use of SF6
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an environment-friendly gas insulation five-station switch for a ring main unit, and belongs to the technical field of ring main units. The three-station isolating switch device and the two-station circuit breaker switch device are connected with each other, high-reliability five-station switch transmission can be realized, the isolation is realized by adopting an insulating material, the size of the switch is reduced, the interphase insulation of the switch is increased, the problem that the existing miniaturized ring main unit is required to depend on SF6 gas insulation technology at present is solved, and the five-station switch is insulated by dry air, so that SF6 gas is really replaced, and the three-station isolating switch device has the advantages of no pollution to the environment, safe and environment-friendly structure, compact structure, reliable performance, long service life and convenience in maintenance.
Description
Technical Field
The invention belongs to the technical field of ring main units, and particularly relates to a five-station switch for an environment-friendly gas insulation ring main unit.
Background
Along with the economic development of society, the urbanization process is continuously accelerated, more requirements are put forward to the construction of a power distribution network, and more attention is paid to the occupied area, safety, environmental protection, stability, maintenance-free property and the like. In order to meet the requirements, various switch cabinets are continuously emerged. And the significant technical breakthrough is mainly derived from the application of SF6 gas insulation technology to electrical equipment more than twenty years ago. The SF6 has excellent insulating property and cooling arc characteristic, greatly reduces the size of electrical equipment in the application of the electrical equipment, and improves the reliability of equipment insulation, so the SF6 insulated switch cabinet is widely applied to the electric power market. Although SF6 gas insulated switchgear has many excellent properties, since SF6 gas is identified as a greenhouse gas, and secondly SF6 decomposes to form toxic sulfur subfluorides during arc discharge, it has a great influence on environmental pollution. Therefore, in the high voltage switch industry, the development of SF6 gas is required to be reduced or not used as much as possible.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme:
a five-station switch for an environment-friendly gas insulation ring main unit comprises a three-station isolating switch device and a two-station circuit breaker switch device which are connected with each other, wherein the three-station isolating switch device comprises a five-station switch frame, an isolating side fixed contact fixing beam, an arc-shaped pull plate, a five-station switch frame supporting plate, a bus connecting copper bar, a three-station isolating device transmission shaft, a three-station isolating device angle converter, a three-station isolating device fixed contact, a three-station isolating device moving contact horizontal fixing groove and a three-station isolating device moving contact; the two-station circuit breaker switching device comprises a five-station switch fixing plate, a two-station circuit breaker switching supporting plate, a two-station circuit breaker switching transmission shaft, a two-station circuit breaker interphase insulating plate, a vacuum arc extinguish chamber device, a two-station circuit breaker static contact, a two-station circuit breaker switching climbing device and a five-station switch incoming and outgoing line connecting row; two five-station switch frame supporting plates are formed on two sides of the five-station switch frame, the upper parts of the two five-station switch frame supporting plates are connected through an isolation side static contact fixing beam, a bus connecting copper bar is formed at the lower part of the isolation side fixed contact fixing beam, a three-station isolation device fixed contact is formed on the bus connecting copper bar, a rotatable three-station isolation device transmission shaft is arranged between the two five-station switch frame supporting plates, the three-station isolating device transmission shaft is correspondingly provided with 3 three-station isolating device angle converters, the three-station isolating device angle converter is connected with a moving contact horizontal fixing groove of the three-station isolating device through an arc-shaped pulling plate, a three-station isolating device moving contact corresponding to the three-station isolating device fixed contact is arranged on the three-station isolating device moving contact horizontal fixing groove; two five-station switch fixing plates are correspondingly connected to the lower parts of the two five-station switch frame supporting plates, a two-station circuit breaker supporting plate is arranged between the two five-station switch fixing plates, the two-station circuit breaker supporting plate is correspondingly provided with 4 two-station circuit breaker interphase insulating plates, 3 vacuum arc extinguish chamber devices and a five-station switch incoming and outgoing line connecting row, a vacuum arc extinguish chamber device is arranged between the two adjacent two-station circuit breaker interphase insulating plates, the upper part of the vacuum arc extinguish chamber device is provided with two-station circuit breaker static contacts corresponding to three-station isolating device moving contacts, the five-station switch frame is provided with a three-station isolating device grounding contact, a rotatable two-station circuit breaker switch transmission shaft is arranged between the two five-station switch fixing plates, and two-station circuit breaker switch creepers are arranged on the two-, the five-station switch incoming and outgoing line connecting row and the two-station circuit breaker interphase insulating plates are correspondingly arranged on two sides of the two-station circuit breaker switch supporting plate.
The five-station switch frame is made of carbon steel plates.
The three-station isolating device angle converter can convert the transmission angles of the three-station isolating device static contact, the three-station isolating device moving contact and the three-station isolating device grounding contact from 82 degrees to 49 degrees, and the three-station isolating device moving contact forms a 98-degree included angle between the switching-on position and the grounding position.
Two station circuit breaker switching device adopts the rotary circuit breaker structure, adopts two station circuit breaker switch transmission shafts to drive the arc circulator pulling vacuum interrupter of internally mounted and realizes two station changes.
Compared with the prior art, the invention has the following advantages:
the circuit breaker switching device adopts the transmission shaft to drive the internally installed arc-shaped rotator, the rotator pulls the vacuum arc extinguish chamber to realize two-station change, the two-station switches drive the transmission shaft through the external transmission mechanism, the electric arc can be quickly cut off, the two-station circuit breaker switch climbing-increasing device is installed on the transmission shaft, and the inter-phase voltage climbing distance of the switches is ensured; the two-station circuit breaker switch device and the three-station isolating switch device are connected with the three-station isolating switch moving contact through the two-station circuit breaker static contact, so that high-reliability five-station switch transmission is realized, insulating materials are adopted for isolation, the size of a switch is reduced, the phase insulation of the switch is increased, the problem that the existing miniaturized ring main unit needs to rely on SF6 gas insulation at present is solved, the five-station switch is insulated by dry air, and SF6 gas is replaced in a real sense, and the three-station circuit breaker switch device has no pollution to the environment, is safe and environment-friendly in structure, compact in structure, reliable in performance, long in service life and convenient to maintain.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a three-position disconnector arrangement according to the invention;
FIG. 3 is a schematic diagram of the grounding position of the three-position disconnector arrangement of the present invention;
FIG. 4 is a schematic diagram of the closing position of the three-position disconnecting switch device of the invention;
figure 5 is a schematic diagram of a two position circuit breaker switching device of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1 to 5, the embodiment provides a five-station switch for an environment-friendly gas-insulated ring main unit, which includes a three-station disconnecting switch device and a two-station circuit breaker switch device that are connected to each other, where the three-station disconnecting switch device includes a five-station switch frame 1, an isolation-side fixed contact fixing beam 6, an arc-shaped pulling plate 3, a five-station switch frame support plate 4, a bus connecting copper bar 5, a three-station isolating device transmission shaft 7, a three-station isolating device angle converter 8, a three-station isolating device fixed contact 9, a three-station isolating device movable contact horizontal fixing groove 10, and a three-station isolating device movable contact 11; the two-station circuit breaker switching device comprises a five-station switch fixing plate 2, a two-station circuit breaker switch supporting plate 17, a two-station circuit breaker switch transmission shaft 16, a two-station circuit breaker interphase insulating plate 14, a vacuum arc extinguish chamber device 13, a two-station circuit breaker static contact 12, a two-station circuit breaker switch climbing-increasing device 19 and a five-station switch incoming and outgoing line connecting row 18; two five-station switch frame supporting plates 4 are formed on two sides of the five-station switch frame 1, the upper parts of the two five-station switch frame supporting plates 4 are connected through an isolation side static contact fixing beam 6, a bus connecting copper bar 5 is formed at the lower part of the isolation side fixed contact fixing beam 6, a three-station isolation device fixed contact 9 is formed on the bus connecting copper bar 5, a rotatable three-station isolation device transmission shaft 7 is arranged between the two five-station switch frame supporting plates 4, the three-station isolating device transmission shaft 7 is correspondingly provided with 3 three-station isolating device angle converters 8, the three-station isolating device angle converter 8 is connected with a moving contact horizontal fixing groove 10 of the three-station isolating device through an arc-shaped pulling plate 3, a three-station isolating device moving contact 11 corresponding to the three-station isolating device static contact 9 is arranged on the three-station isolating device moving contact horizontal fixing groove 10; two five-station switch fixing plates 2 are correspondingly connected to the lower parts of two five-station switch frame supporting plates 4, a two-station circuit breaker supporting plate 17 is arranged between the two five-station switch fixing plates 2, the two-station circuit breaker supporting plate 17 is correspondingly provided with 4 two-station circuit breaker interphase insulating plates 14, 3 vacuum arc extinguish chamber devices 13 and a five-station switch incoming and outgoing line connecting bar 18, one vacuum arc extinguish chamber device 13 is arranged between the two adjacent two-station circuit breaker interphase insulating plates 14, the upper part of the vacuum arc extinguish chamber device 13 is provided with two-station circuit breaker static contacts 12 corresponding to three-station isolating device moving contacts 11, a three-station isolating device grounding contact 15 is arranged on the five-station switch frame 1, a rotatable two-station circuit breaker switch transmission shaft 16 is arranged between the two five-station switch fixing plates 2, two-station circuit breaker switch climbing-increasing device 19 is arranged on the two-station circuit breaker switch transmission shaft 16, and the five-station switch incoming and outgoing line connecting row 18 and the two-station circuit breaker interphase insulation board 14 are correspondingly arranged on two sides of the two-station circuit breaker switch supporting plate 17.
The five-station switch frame 1 is made of carbon steel plates.
The three-station isolating device angle converter 8 can convert the transmission angles of the three-station isolating device static contact 9, the three-station isolating device moving contact 11 and the three-station isolating device grounding contact 15 from 82 degrees to 49 degrees, the three-station isolating device moving contact 11 forms a 98-degree included angle between the switching-on position and the grounding position, and the fracture distance between the three-station isolating device moving contact and the static contact and the grounding contact at the isolating position can be increased to meet the high-voltage electrical insulation distance.
Two station circuit breaker switching device adopts rotatory circuit breaker structure, adopts two station circuit breaker switch transmission shaft 16 to drive internally mounted's arc circulator pulling vacuum interrupter and realizes two station changes, and current rotatory circuit breaker structure is chooseed for use to other inner structure of arc circulator and rotatory circuit breaker, does not do the detailed introduction here again.
The circuit breaker switching device adopts the transmission shaft to drive the internally installed arc-shaped rotator, the rotator pulls the vacuum arc extinguish chamber to realize two-station change, the two-station switches drive the transmission shaft through the external transmission mechanism, the electric arc can be quickly cut off, the two-station circuit breaker switch climbing-increasing device is installed on the transmission shaft, and the inter-phase voltage climbing distance of the switches is ensured; the two-station circuit breaker switch device and the three-station isolating switch device are connected with the three-station isolating switch moving contact through the two-station circuit breaker static contact, so that high-reliability five-station switch transmission is realized, insulating materials are adopted for isolation, the size of a switch is reduced, the phase insulation of the switch is increased, the problem that the existing miniaturized ring main unit needs to rely on SF6 gas insulation at present is solved, the five-station switch is insulated by dry air, and SF6 gas is replaced in a real sense, and the three-station circuit breaker switch device has no pollution to the environment, is safe and environment-friendly in structure, compact in structure, reliable in performance, long in service life and convenient to maintain.
The present invention is illustrated by way of example and not by way of limitation. It will be apparent to those skilled in the art that other variations and modifications may be made in the foregoing disclosure without departing from the spirit or essential characteristics of all embodiments, and that all changes and modifications apparent from the above teachings are within the scope of the invention.
Claims (4)
1. The five-station switch for the environment-friendly gas insulation ring main unit is characterized by comprising a three-station isolating switch device and a two-station circuit breaker switch device which are connected with each other, wherein the three-station isolating switch device comprises a five-station switch frame (1), an isolating side static contact fixing beam (6), an arc-shaped pulling plate (3), a five-station switch frame support plate (4), a bus connecting copper bar (5), a three-station isolating device transmission shaft (7), a three-station isolating device angle converter (8), a three-station isolating device static contact (9), a three-station isolating device moving contact horizontal fixing groove (10) and a three-station isolating device moving contact (11); the two-station circuit breaker switching device comprises a five-station switch fixing plate (2), a two-station circuit breaker switch supporting plate (17), a two-station circuit breaker switch transmission shaft (16), a two-station circuit breaker interphase insulating plate (14), a vacuum arc extinguish chamber device (13), a two-station circuit breaker static contact (12), a two-station circuit breaker switch climbing increasing device (19) and a five-station switch incoming and outgoing line connecting bar (18); two five-station switch frame supporting plates (4) are formed on two sides of the five-station switch frame (1), the upper portions of the five-station switch frame supporting plates (4) are connected through an isolation side static contact fixing beam (6), a bus connecting copper bar (5) is formed on the lower portion of the isolation side static contact fixing beam (6), three-station isolation device static contacts (9) are formed on the bus connecting copper bar (5), a rotatable three-station isolation device transmission shaft (7) is arranged between the five-station switch frame supporting plates (4), 3 three-station isolation device angle converters (8) are correspondingly arranged on the three-station isolation device transmission shaft (7), the three-station isolation device angle converters (8) are connected with three-station isolation device moving contact horizontal fixing grooves (10) through arc-shaped pull plates (3), and the three-station isolation device moving contact horizontal fixing grooves (10) are provided with the three-station isolation device static contacts A moving contact (11) of the three-station isolation device corresponding to the contact (9); two five-station switch frame supporting plates (4) are correspondingly connected with two five-station switch fixing plates (2) at the lower parts, two-station circuit breaker switch supporting plates (17) are arranged between the five-station switch fixing plates (2), the two-station circuit breaker switch supporting plates (17) are correspondingly provided with 4 two-station circuit breaker interphase insulating plates (14), 3 vacuum arc extinguish chamber devices (13) and five-station switch incoming and outgoing line connecting rows (18), one vacuum arc extinguish chamber device (13) is arranged between the two adjacent two-station circuit breaker interphase insulating plates (14), two-station circuit breaker static contacts (12) corresponding to three-station isolating device moving contacts (11) are arranged on the upper parts of the vacuum arc extinguish chamber devices (13), three-station isolating device grounding contacts (15) are arranged on the five-station switch frame (1), and a rotatable two-station circuit breaker switch transmission shaft (a) (a rotary two-station circuit breaker switch transmission 16) The two-station circuit breaker climbing device is characterized in that a two-station circuit breaker climbing increasing device (19) is arranged on a two-station circuit breaker switch transmission shaft (16), and a five-station switch incoming and outgoing line connecting row (18) and two-station circuit breaker phase-to-phase insulation plates (14) are correspondingly arranged on two surfaces of a two-station circuit breaker switch supporting plate (17).
2. The environment-friendly gas-insulated ring main unit five-position switch as claimed in claim 1, wherein the five-position switch frame (1) is made of carbon steel plate.
3. The five-station switch for the environment-friendly gas insulation ring main unit according to claim 2, wherein the three-station isolating device angle converter (8) can convert a transmission angle between a three-station isolating device static contact (9), a three-station isolating device moving contact (11) and a three-station isolating device grounding contact (15) from 82 degrees to 49 degrees, and the three-station isolating device moving contact (11) forms an included angle of 98 degrees between a switching-on position and a grounding position.
4. The five-station switch for the environment-friendly gas-insulated ring main unit according to claim 3, wherein the two-station breaker switch device adopts a rotary breaker structure, and a transmission shaft (16) of the two-station breaker switch is adopted to drive an internally installed arc rotator to pull the vacuum arc extinguish chamber to realize two-station change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965071.0A CN112086896A (en) | 2020-09-15 | 2020-09-15 | Five-station switch for environment-friendly gas insulation ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965071.0A CN112086896A (en) | 2020-09-15 | 2020-09-15 | Five-station switch for environment-friendly gas insulation ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112086896A true CN112086896A (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010965071.0A Pending CN112086896A (en) | 2020-09-15 | 2020-09-15 | Five-station switch for environment-friendly gas insulation ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112086896A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116646207A (en) * | 2023-07-26 | 2023-08-25 | 广东米勒电气有限公司 | Electric two-station isolating switch of full-insulation full-sealed gas-insulated cabinet |
-
2020
- 2020-09-15 CN CN202010965071.0A patent/CN112086896A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116646207A (en) * | 2023-07-26 | 2023-08-25 | 广东米勒电气有限公司 | Electric two-station isolating switch of full-insulation full-sealed gas-insulated cabinet |
| CN116646207B (en) * | 2023-07-26 | 2023-11-21 | 广东米勒电气有限公司 | Electric two-station isolating switch of full-insulation full-sealed gas-insulated cabinet |
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