GIS angle-type split-phase common-air-chamber double-fracture disconnecting switch

Abstract

The invention belongs to the technical field of high-voltage electrical equipment, and particularly relates to a GIS angle-type split-phase common-air-chamber double-fracture disconnecting switch. The GIS angle-type split-phase common-gas-chamber double-fracture disconnecting switch comprises a shell and is characterized in that a horizontal insulator is arranged on the side face of the shell, a vertical insulator is arranged on the bottom face of the shell, a horizontal isolation static contact base is installed on the horizontal insulator, a vertical isolation static contact base is installed on the vertical insulator, an isolation movable contact base is arranged in the shell, and the isolation movable contact base is connected with the isolation movable contact base. A horizontal moving contact and a vertical moving contact are arranged in the isolating moving contact seat, the horizontal moving contact and the vertical moving contact are respectively driven by a gear, the gear is arranged on a gear shaft, the gear shaft is driven by an insulating shaft, and the insulating shaft is connected with an operating mechanism. The three-phase isolation moving contact has the advantages that the three-phase isolation moving contacts are arranged in the shell side by side, transmission is achieved between phases through the insulation shaft, and the problems that in the prior art, the structure is complex, the equipment cost is high, and the occupied area is large are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-voltage electrical equipment, and in particular relates to a GIS angle-type phase-split common gas chamber double-break disconnector. Background Art

[0002] The development of power systems has placed higher demands on the size, performance, and reliability of 252kV GIS equipment. Traditional linear double-break switches are used for vertical and horizontal circuit breakers. Both horizontal and vertical dual busbar arrangements require the design of conductor transitions. For GIS manufacturers, this increases the spacing, transportation, and material costs. For users, this requires a larger room span, increasing floor space. Summary of the Invention

[0003] In order to make up for the deficiencies of the prior art, the present invention provides a GIS angle-type phase-split common gas chamber double-break disconnector.

[0004] The present invention is achieved through the following technical solutions: A GIS angle-type phase-split common gas chamber double-break disconnector includes a shell and is characterized in that: horizontal insulators are provided on the side of the shell, vertical insulators are provided on the bottom of the shell, horizontal isolation static contact seats are installed on the horizontal insulators, and vertical isolation static contact seats are installed on the vertical insulators. An isolation moving contact seat is provided in the shell, and a horizontal moving contact and a vertical moving contact are provided in the isolation moving contact seat. The horizontal moving contact and the vertical moving contact are respectively driven by gears, the gears are installed on the gear shaft, the gear shaft is driven by an insulating shaft, and the insulating shaft is connected to an operating mechanism.

[0005] A grounding moving contact is provided above the isolating moving contact seat, and a grounding static contact seat is provided above the grounding moving contact.

[0006] The isolating movable contact seat is fixed on the shell through a supporting insulator.

[0007] The beneficial effects of the present invention are that the three-phase isolating moving contacts are arranged side by side in the housing, and the phases are driven by insulating shafts, thereby solving the problems of complex structure, high equipment cost, and large floor space in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention will be further described below with reference to the accompanying drawings.

[0009] Attachment Figure 1 It is a structural schematic diagram of the present invention; Attachment Figure 2 For attachment Figure 1 AA cross-sectional structural diagram; In the figure, 1 is the shell, 2 is the horizontal insulator, 3 is the vertical insulator, 4 is the horizontal isolating static contact seat, 5 is the vertical isolating static contact seat, 6 is the isolating moving contact seat, 7 is the horizontal moving contact, 8 is the vertical moving contact, 9 is the gear, 10 is the gear shaft, 11 isolating shaft, 12 is the operating mechanism, 13 is the grounding moving contact, 14 is the grounding static contact seat, and 15 is the supporting insulator. DETAILED DESCRIPTION

[0010] The accompanying drawings illustrate a specific embodiment of the present invention. This embodiment comprises a housing 1, with horizontal insulators 2 disposed on the side of the housing 1 and vertical insulators 3 disposed on the bottom of the housing 1. A horizontal isolating static contact seat 4 is mounted on the horizontal insulator 2, and a vertical isolating static contact seat 5 is mounted on the vertical insulator 3. An isolating moving contact seat 6 is disposed within the housing 1, and a horizontal moving contact 7 and a vertical moving contact 8 are disposed within the isolating moving contact seat 6. The horizontal moving contact 7 and the vertical moving contact 8 are each driven by a gear 9 mounted on a gear shaft 10. The gear shaft 10 is driven by an insulating shaft 11, which is connected to an operating mechanism 12.

[0011] A grounding moving contact 13 is provided above the isolating moving contact seat 6, and a grounding static contact seat 14 is provided above the grounding moving contact 13. The isolating moving contact seat 6 is fixed to the housing 1 through a supporting insulator 15.

[0012] The GIS angle-type, phase-split, common-chamber, double-break disconnector employing the present invention features a horizontal moving contact 7 and a vertical moving contact 8 arranged at 90°, mounted within an isolating moving contact seat 6. The horizontal moving contact 7 moves horizontally, while the vertical moving contact 8 moves vertically. Two gears 9 are mounted on a common gear shaft 10, positioned midway between the angles between the horizontal and vertical moving contacts 7 and 8. Racks are incorporated into both the horizontal and vertical moving contacts, meshing with the gears 9 to drive the moving contacts' simultaneous movement.

[0013] In the GIS angle-type phase-split common-chamber double-break disconnector of the present invention, the operating mechanism 12 outputs torque, which drives the gear shaft 10 to rotate through the insulating shaft 11. Two gears 9 are installed on each phase gear shaft 10, which respectively engage with the racks in the horizontal moving contact 7 and the vertical moving contact 8. When closing the switch, the gear 9 rotates counterclockwise by a certain angle, driving the horizontal moving contact 7 to move left and the vertical moving contact 8 to move downward. The horizontal moving contact 7 is plugged into the horizontal isolation static contact seat 4, and the vertical moving contact 8 is plugged into the vertical isolation static contact seat 5, completing the closing. When opening the switch, the gear 9 rotates clockwise, the horizontal moving contact 7 moves right, and the vertical moving contact 8 moves upward. The horizontal moving contact 7 is separated from the horizontal isolation static contact seat 4, and the vertical moving contact 8 is separated from the vertical isolation static contact seat 5, completing the opening.

[0014] During maintenance, the horizontal moving contact 7 and the vertical moving contact 8 are in the open state, the grounding moving contact 13 moves downward, and the grounding moving contact 13 is inserted into the isolating moving contact seat 6.

Claims

1. A GIS angle-type phase-split common gas chamber double-break disconnector, comprising a housing (1), characterized in that: The shell (1) is provided with a horizontal insulator (2) on the side surface, and a vertical insulator (3) is provided on the bottom surface of the shell (1). A horizontal isolating static contact seat (4) is installed on the horizontal insulator (2), and a vertical isolating static contact seat (5) is installed on the vertical insulator (3). An isolating moving contact seat (6) is provided in the shell (1), and a horizontal moving contact (7) and a vertical moving contact (8) are provided in the isolating moving contact seat (6). The horizontal moving contact (7) and the vertical moving contact (8) are respectively driven by a gear (9). The gear (9) is installed on a gear shaft (10). The gear shaft (10) is driven by an insulating shaft (11). The insulating shaft (11) is connected to an operating mechanism (12).

2. The GIS angle-type phase-split common gas chamber double-break disconnector according to claim 1 is characterized by: A grounding moving contact (13) is provided above the isolating moving contact seat (6), and a grounding static contact seat (14) is provided above the grounding moving contact (13).

3. The GIS angle-type phase-split common-chamber double-break disconnector according to claim 1 is characterized in that: The isolating movable contact seat (6) is fixed to the housing (1) via a supporting insulator (15).

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