Removable line disconnecting switch
A technology for isolating knife gates and lines, applied to circuits, high-voltage air circuit breakers, air switch components, etc., can solve problems such as easy rusting of the shaft, inability to operate, and non-removable moving contacts, so as to prevent misoperation , Avoid the effect of rust and inoperability
Inactive Publication Date: 2015-12-30
STATE GRID SHANDONG GAOTANG POWER SUPPLY
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The traditional line isolation switch has the following disadvantages: 1. The moving contact piece cannot be removed, and power can be transmitted once it is operated, which has potential safety hazards
2. The line isolation knife switch is generally used outdoors, and the shaft is easily rusted, and it cannot be operated after rusting
Method used
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[0014] The present invention will be further described below in conjunction with accompanying drawing.
[0015] The detachable line isolation switch, as shown in the figure, is mainly composed of a base 1, an insulating support 2, and a detachable movable contact piece 3, wherein the base 1 is fixed on the line pole, and the insulating support 2 is fixed at both ends of the base 1 , the insulating pillar 2 is provided with a rotating shaft hanging piece 4 with a cut-in groove, one end of the detachable movable contact piece 3 is provided with a brake lever hook 5 and a rotating shaft 6, and the other end is provided with a locking device 7 for closing the knife gate , with two static contacts 8 in the middle. The detachable movable contact piece 3 is a double-arm contact piece, which is compressed and fixed by a spring compression mechanism 9 between the two arms. When the knife switch is closed, operate the brake lever, hang the brake lever hook 5 on the detachable movable c...
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The invention relates to a removable line disconnecting switch which is mainly composed of a base, insulating supporting columns and a removable movable contact piece. The base is fixed on a wire rod, the insulating supporting columns are fixed at the two ends of the base and provided with a rotation shaft hanging piece with a cut-in groove, one end of the removable movable contact piece is provided with a switch-off rod hook and a rotation shaft, the other end of the removable movable contact piece is provided with a locking device for disconnecting the switch, and the middle of the removable movable contact piece is provided with two fixed contacts; a two-arm contact piece is adopted as the removable movable contact piece, and two arms of the two-arm contact piece are compressed and fixed through spring compressing mechanisms; when the switch is connected, a switch-off rod is operated to hook the switch-off rod hook on the removable movable contact piece, the rotation shaft is cut in the rotation shaft hanging piece to be hung, and then the switch-off rod drives an operating ring of the locking device to connect the switch. According to the removable line disconnecting switch, the possibility of misoperation is completely eradicated, and the phenomenon that the rotation shaft cannot be operated due to rusting is avoided.
Description
technical field [0001] The invention relates to a detachable line isolation knife switch, which belongs to the technical field of power supply. Background technique [0002] The line isolation knife switch is a line segment disconnection device operated without load, mainly to provide an obvious disconnection point during line segment maintenance, or to disconnect temporary outage branch lines. The traditional isolating knife switch is generally composed of insulating pillars, static contacts, and moving contacts. The moving contacts are generally installed on the insulating pillars by the rotating shaft and cannot be removed. After disconnection, the moving contacts are hung on the rotating shaft. The traditional line isolation switch has the following disadvantages: 1. The moving contact piece cannot be removed, and power can be transmitted once it is operated, which has potential safety hazards. 2. The line isolation knife switch is generally used outdoors, and the shaft...
Claims
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IPC IPC(8): H01H31/02H01H21/54
CPCH01H31/026H01H21/54
Inventor 张鸣飞陈儒群马勇济高元福崔建军张亚新唐晓吴丽静王玉
Owner STATE GRID SHANDONG GAOTANG POWER SUPPLY