CN112531547A - Medium-voltage gas-insulated metal-enclosed switchgear - Google Patents
Medium-voltage gas-insulated metal-enclosed switchgear Download PDFInfo
- Publication number
- CN112531547A CN112531547A CN202011487712.2A CN202011487712A CN112531547A CN 112531547 A CN112531547 A CN 112531547A CN 202011487712 A CN202011487712 A CN 202011487712A CN 112531547 A CN112531547 A CN 112531547A
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- China
- Prior art keywords
- shell
- bus
- breaker
- station
- circuit breaker
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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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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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
- H02B13/045—Details of casing, e.g. gas tightness
-
- 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
- H02B13/075—Earthing arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses medium-voltage gas-insulated metal-enclosed switchgear which comprises a supporting frame, a breaker shell, a three-station shell, a bus shell, a main bus, a bus disc-type insulating sleeve and an isolating disc-type insulating sleeve, wherein the breaker shell is arranged on the supporting frame; the circuit breaker shell is a sealed shell, and the right upper port of the circuit breaker shell is connected with the right lower port of the three-station shell through an isolation disc type insulating sleeve; the three-station shell is a sealed shell, and the upper left port of the three-station shell is connected with the lower port of the bus shell through a bus disc type insulating sleeve; the bus shell is a sealed shell and is positioned above the three-station shell, and a main bus is arranged in the bus shell. The invention adopts the totally closed aluminum alloy cylinder body, can meet the requirements of different operating environments and altitudes, and has the advantages of vortex prevention, corrosion resistance, no deformation and good heat dissipation; the circuit breaker adopts a vacuum arc extinguishing mode, is provided with a spring operating mechanism, and has the advantages of stability, reliability and suitability for frequent operation; and the outgoing line side is provided with a grounding switch, so that the grounding function of the bus side can be independently realized.
Description
Technical Field
The invention relates to the field of complete sets of switch equipment in the power industry, in particular to medium-voltage gas-insulated metal-enclosed switch equipment.
Background
Along with the increasing growth of the nation, the demand of various industries on power consumption is increasing, the operating environment of electrical equipment is more and more complex, the conventional metal closed switch equipment is difficult to simultaneously meet the operating environment with high altitude and high pollution, and operating accidents such as discharge, arc discharge and the like are easy to generate; although the conventional gas insulated metal enclosed switchgear can meet the user requirements of high altitude, seaside saline-alkali environment and high pollution level, the conventional gas insulated metal enclosed switchgear is poor in heat dissipation, small in current carrying and the like, and is difficult to meet the requirements of modern users on large current.
Disclosure of Invention
The invention adopts the technical scheme that the aluminum alloy shell is divided into boxes and is totally closed, solves the heat dissipation problem of a large-current system and can meet the requirements of different operating environments and high altitude. The circuit breaker adopts the vacuum arc extinguishing mode, disposes spring operating device, has reliable and stable, is fit for frequently operating's advantage. And the outgoing line side is provided with a grounding switch, so that the grounding function of the bus side can be independently realized.
The invention relates to medium-voltage gas-insulated metal-enclosed switchgear which comprises a supporting frame, a breaker shell, a three-station shell, a bus shell, a main bus, a bus disc-type insulating sleeve and an isolating disc-type insulating sleeve, wherein the breaker shell is arranged on the supporting frame;
the breaker shell is a sealed shell and is positioned above the supporting frame, and the upper right port of the breaker shell is connected with the lower right port of the three-station shell through an isolation disc type insulating sleeve;
the three-station shell is a sealed shell and is positioned above the breaker shell, and the upper left port of the three-station shell is connected with the lower port of the bus shell through a bus disc type insulating sleeve;
the bus shell is a sealed shell and is positioned above the three-station shell, and a main bus is arranged in the bus shell.
The invention relates to medium-voltage gas-insulated metal-enclosed switchgear, which further comprises a circuit breaker mechanism, wherein a vacuum arc extinguish chamber, a supporting insulating table, a supporting insulating basin, a circuit breaker moving contact, a circuit breaker supporting block and an insulating pull rod are arranged in a circuit breaker shell;
the supporting insulation table is fixed inside the left side of the right port of the breaker shell, the supporting insulation basin is fixed inside the right side of the left port, the supporting insulation basin and the supporting insulation table for supporting the vacuum arc extinguish chamber are respectively arranged at the left end and the right end of the vacuum arc extinguish chamber, and the vacuum arc extinguish chamber is matched with a moving contact of the breaker;
the insulation pull rod is arranged on the inner side of the support insulation table, the right side surface of the breaker support block is connected with the left side surface of the support insulation table, a breaker moving contact is arranged on the inner side of the breaker support block, and the right end head of the breaker moving contact is connected with the left end head of the insulation pull rod;
the circuit breaker mechanism is fixed on the upper right of the supporting frame, the left end of the circuit breaker mechanism is connected with the right port of the circuit breaker shell, and the circuit breaker mechanism is matched with the moving contact of the circuit breaker through an insulating pull rod.
The medium-voltage gas-insulated metal-enclosed switchgear further comprises a grounding switch, wherein the grounding switch is fixed on the left side of the left port of the breaker shell and is connected with the supporting insulation basin.
The invention discloses medium-voltage gas-insulated metal-enclosed switchgear.A breaker mechanism comprises a breaker motor and a first spring, wherein a breaker motor driving spring is matched with an insulating pull rod to operate the opening and closing of a breaker moving contact.
The invention relates to medium-voltage gas-insulated metal-enclosed switchgear, which further comprises a three-station mechanism, wherein a switch-on contact, a grounding contact, an isolating contact, a moving contact and an insulating screw rod are arranged in a three-station shell;
the three-station mechanism is positioned above the circuit breaker mechanism, the left end of the three-station mechanism is connected with the right port of the three-station shell, the left end of the three-station mechanism is connected with the right end head of the insulating screw rod, and the moving contact is inserted in the insulating screw rod;
the isolation contact is arranged above the isolation disc type insulating sleeve, and the breaker shell, the three-station shell and the bus shell are all aluminum alloy sealing cylinders.
The three-station mechanism comprises a three-station motor and a second spring, wherein the three-station motor drives the second spring to drive an insulating screw rod to operate a three-station moving contact to move back and forth, so that three functions of connection, isolation and grounding of the three-station isolating switch are realized.
According to the medium-voltage gas-insulated metal-enclosed switchgear, the breaker shell, the three-station shell and the bus shell are all aluminum alloy sealed cylinders.
According to the medium-voltage gas-insulated metal-enclosed switchgear, SF6 gas is filled in the sealed breaker shell, the three-position shell and the bus shell.
Compared with the prior art, the clamp lock wire assembling device has the advantages that:
1. the invention adopts the aluminum alloy cylinder body to be totally closed, has the advantages of vortex prevention, corrosion resistance, no deformation and good heat dissipation, and can meet the requirements of different operating environments and altitudes.
2. The circuit breaker adopts a vacuum arc extinguishing mode, is provided with a spring operating mechanism, and has the advantages of stability, reliability and suitability for frequent operation
3. The invention adopts the concept of standardized and modularized design, can be freely combined and flexibly expanded, and has the advantages of compact structure, low operation cost and no maintenance.
Drawings
Fig. 1 is a schematic structural diagram of a medium-voltage gas-insulated metal-enclosed switchgear according to the invention.
Description of the figures
1-main bus; 2-a busbar housing; 3-bus disc type insulating sleeve; 4-closing the contact; 5-moving contact; 6-isolating the contacts; 7-a ground contact; 8-a three-station mechanism; 9-three-station shell; 10-an insulating screw rod; 11-a circuit breaker mechanism; 12-supporting an insulating table; 13-an insulating pull rod; 14-a vacuum arc-extinguishing chamber; 15-supporting the insulation basin; 16-a grounding switch; 17-a circuit breaker housing; 18-inner cone insulator; 19-a support frame; 20-an outgoing line conducting rod; 21-a breaker support block; 22-moving contact of circuit breaker; 23-an outlet tank; 24-isolation disc type insulation sleeve; 25-SF6 density controller.
Detailed Description
A medium voltage gas insulated metal enclosed switchgear according to the invention is described in further detail below with reference to fig. 1 of the accompanying drawings.
Referring to fig. 1, the medium-voltage gas-insulated metal-enclosed switchgear of the present invention includes a supporting frame 19, a breaker housing 17, a three-position housing 9, a bus housing 2, a main bus 1, a bus disc-type insulating sleeve 3, and an isolation disc-type insulating sleeve 24. The breaker shell 17 and the three-position shell 9, as well as the three-position shell and the bus shell are respectively isolated and sealed through the isolation disc type insulating sleeve 24 and the bus disc type insulating sleeve 3, so that the circuit breaker, the three-position switch and the bus 1 are independently sealed. Furthermore, SF6 gas is filled in the sealed breaker shell 17, the three-position shell 9 and the bus shell 2, and the requirements of national standard LSC2 level are met. The breaker shell 17, the three-station shell 9 and the bus shell 2 are all aluminum alloy sealing cylinders, and the aluminum alloy sealing cylinders have the advantages of eddy current prevention, corrosion resistance, no deformation and heat dissipation, and can meet the requirements of different operating environments and altitudes.
The invention also comprises a breaker mechanism 11, wherein a vacuum arc extinguish chamber 14, a supporting insulating table 12, a supporting insulating basin 15, a breaker moving contact 22, a breaker supporting block 21 and an insulating pull rod 13 are arranged in the breaker shell 17; the supporting insulation table 12 is fixed inside the left side of the right port of the circuit breaker shell 17, the supporting insulation basin 15 is fixed inside the right side of the left port of the circuit breaker shell 17, the supporting insulation basin 15 and the supporting insulation table 12 for supporting the vacuum arc-extinguishing chamber are respectively arranged at the left end and the right end of the vacuum arc-extinguishing chamber 14, and the vacuum arc-extinguishing chamber 14 is matched with the circuit breaker moving contact 22; the insulating pull rod 13 is arranged on the inner side of the supporting insulating table 12, the right side surface of the breaker supporting block 21 is connected with the left side surface of the supporting insulating table 12, the breaker moving contact 22 is arranged on the inner side of the breaker supporting block 21, and the right end of the breaker moving contact 22 is connected with the left end of the insulating pull rod 13; the breaker mechanism 11 is fixed on the upper right of the supporting frame 19, the left end of the breaker mechanism 11 is connected with the right port of the breaker shell 17, and the breaker mechanism 11 is matched with the breaker moving contact 22 through an insulating pull rod. The upper port of the outgoing line tank body 23 is connected with the left lower port of the breaker shell 17, the lower end head of the outgoing line insulation cone 18 is fixed on the inner side above the lower port of the outgoing line tank body 23, and the lower end head of the outgoing line conducting rod 20 is fixed above the upper end head of the outgoing line insulation cone 18. The above connections constitute an independent seal and breaker mechanism and spring operated and vacuum arc extinguishing mode breaker current loop structure.
The invention also comprises an earthing switch 16, wherein the earthing switch 16 is fixed at the left side of the left port of the breaker shell 17 and is connected with the supporting insulation basin 12. The structure and connection realize grounding of the side of the bus, namely, the grounding switch 16 is connected with the vacuum arc-extinguishing chamber 14 through the supporting insulation basin 12 and the conductive piece, the vacuum arc-extinguishing chamber 14 is connected with the circuit breaker supporting block 21, the circuit breaker supporting block 21 is connected with the conductive rod and the conductive piece through the supporting insulation disc 15 and the isolation contact 6, and the isolation contact 6 is connected with the bus 1 through the movable contact 5, the switch-on contact 4, the conductive piece and the bus disc type insulation sleeve 3, so that grounding of the side of the bus 1 is realized.
The invention also comprises a three-station mechanism 8, wherein a switch-on contact 4, a grounding contact 7, an isolating contact 6, a moving contact 5 and an insulating screw rod 10 are arranged in the three-station shell 9; the three-station mechanism 8 is positioned above the circuit breaker mechanism 17, the left end of the three-station mechanism 8 is connected with the right port of the three-station shell 9, the left end of the three-station mechanism 8 is connected with the right end of the insulating screw rod 10, and the movable contact 5 is inserted in the insulating screw rod 10; the isolation contact 6 is arranged above the isolation disc type insulation sleeve 24, the grounding contact 7 is fixed inside the left side of the left port of the three-station shell 9, and the switch-on contact 4 is arranged below the bus disc type insulation sleeve 3. The lower port of the bus shell 2 is connected with the left upper port of the three-station isolating shell 9 through a bus disc type insulating sleeve 3, and the main bus 1 is fixed above an insulating disc above the left upper port of the three-station isolating switch shell 9 through a conductive piece. The connection forms an independent sealed three-position switch current loop structure. The three-station mechanism 8 comprises a three-station motor and a second spring, the three-station motor drives the second spring to drive the insulating screw rod 10 to operate the moving contact 5 to move back and forth, and three functions of connection, isolation and grounding of the isolation contact 6 are achieved.
The invention relates to a working principle of medium-voltage gas-insulated metal-enclosed switchgear, which comprises the following components: the circuit breaker operating mechanism 11 drives a circuit breaker insulating pull rod 13 to operate the vacuum arc extinguish chamber 14 to be opened and closed, and the three-station mechanism 8 rotates the insulating screw rod 10 to drive the moving contact 5 to be opened and closed with the grounding contact 7 and the switch-on contact 4.
Claims (8)
1. A medium-voltage gas-insulated metal-enclosed switchgear, characterized in that: the three-station bus-bar insulating device comprises a supporting frame (19), a breaker shell (17), a three-station shell (9), a bus shell (2), a main bus (1), a bus disc type insulating sleeve (3) and an isolating disc type insulating sleeve (24);
the breaker shell (17) is a sealed shell and is positioned above the supporting frame (19), and the upper right port of the breaker shell (17) is connected with the lower right port of the three-station shell (9) through an isolation disc type insulating sleeve (24);
the three-station shell (9) is a sealed shell and is positioned above the breaker shell (17), and the upper left port of the three-station shell (9) is connected with the lower port of the bus shell (2) through a bus disc type insulating sleeve (3);
the bus shell (2) is a sealed shell and is positioned above the three-station shell (9), and a main bus is arranged in the bus shell (2).
2. A medium voltage gas insulated metal enclosed switchgear according to claim 1, characterized in that: the circuit breaker is characterized by further comprising a circuit breaker mechanism (11), wherein a vacuum arc extinguish chamber (14), a supporting insulating table (12), a supporting insulating basin (15), a circuit breaker moving contact (22), a circuit breaker supporting block (21) and an insulating pull rod (13) are arranged in the circuit breaker shell (17);
the supporting insulation table (12) is fixed inside the left side of the right end opening of the breaker shell (17), the supporting insulation basin (15) is fixed inside the right side of the left end opening of the breaker shell (17), the supporting insulation basin (15) and the supporting insulation table (12) which are used for supporting the vacuum arc-extinguishing chamber are respectively arranged at the left end and the right end of the vacuum arc-extinguishing chamber (14), and the vacuum arc-extinguishing chamber (14) is matched with the breaker moving contact (22);
the insulation pull rod (13) is arranged on the inner side of the support insulation table (12), the right side surface of the breaker supporting block (21) is connected with the left side surface of the support insulation table (12), a breaker moving contact (22) is arranged on the inner side of the breaker supporting block (21), and the right end head of the breaker moving contact (22) is connected with the left end head of the insulation pull rod (13);
the circuit breaker mechanism (11) is fixed on the upper right of the supporting frame (19), the left end of the circuit breaker mechanism (11) is connected with the right end opening of the circuit breaker shell (17), and the circuit breaker mechanism (11) is matched with the movable contact (22) of the circuit breaker through an insulating pull rod.
3. A medium voltage gas insulated metal enclosed switchgear according to claim 2, characterized in that: the grounding switch (16) is fixed on the left side of the left port of the breaker shell (17) and connected with the supporting insulation basin (12).
4. A medium voltage gas insulated metal enclosed switchgear according to claim 2, characterized in that: the circuit breaker mechanism (11) comprises a circuit breaker motor and a first spring, wherein a circuit breaker motor driving spring is matched with an insulating pull rod (13) to operate the opening and closing of a circuit breaker moving contact (22).
5. A medium voltage gas insulated metal enclosed switchgear according to claim 1, characterized in that: the three-station shell (9) is internally provided with a switch-on contact (4), a grounding contact (7), an isolation contact (6), a moving contact (5) and an insulating screw rod (10);
the three-station mechanism (8) is positioned above the circuit breaker mechanism (17), the left end of the three-station mechanism (8) is connected with the right port of the three-station shell (9), the left end of the three-station mechanism (8) is connected with the right end head of the insulating screw rod (10), and the moving contact (5) is inserted in the insulating screw rod (10);
the isolation contact (6) is arranged above the isolation disc type insulation sleeve (24), the grounding contact (7) is fixed inside the left side of the left port of the three-station shell (9), and the switch-on contact (4) is arranged below the bus disc type insulation sleeve (3).
6. A medium voltage gas insulated metal enclosed switchgear according to claim 5, characterized in that: the three-station mechanism (8) comprises a three-station motor and a second spring, the three-station motor drives the second spring to drive the insulating screw rod (10) to operate the moving contact (5) to move back and forth, and three functions of connection, isolation and grounding of the isolation contact (6) are achieved.
7. A medium voltage gas insulated metal enclosed switchgear according to any of claims 1-6, characterized in that: the breaker shell (17), the three-station shell (9) and the bus shell (2) are all aluminum alloy sealing cylinders.
8. A medium voltage gas insulated metal enclosed switchgear according to any of claims 1-6, characterized in that: SF6 gas is filled in the sealed breaker shell (17), the three-position shell (9) and the bus shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487712.2A CN112531547A (en) | 2020-12-16 | 2020-12-16 | Medium-voltage gas-insulated metal-enclosed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487712.2A CN112531547A (en) | 2020-12-16 | 2020-12-16 | Medium-voltage gas-insulated metal-enclosed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112531547A true CN112531547A (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011487712.2A Pending CN112531547A (en) | 2020-12-16 | 2020-12-16 | Medium-voltage gas-insulated metal-enclosed switchgear |
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| Country | Link |
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| CN (1) | CN112531547A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117767162A (en) * | 2024-02-21 | 2024-03-26 | 霍立克电气有限公司 | Inflatable environment-friendly gas high-voltage switch cabinet with phase control function |
-
2020
- 2020-12-16 CN CN202011487712.2A patent/CN112531547A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117767162A (en) * | 2024-02-21 | 2024-03-26 | 霍立克电气有限公司 | Inflatable environment-friendly gas high-voltage switch cabinet with phase control function |
| CN117767162B (en) * | 2024-02-21 | 2024-05-07 | 霍立克电气有限公司 | Inflatable environment-friendly gas high-voltage switch cabinet with phase control function |
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