Double-column vertically-opened isolating switch
A technology for isolating switches and post insulators, applied in electric switches, air switch components, high-voltage air circuit breakers, etc., can solve problems such as complicated procedures and cumbersome operations, and achieve simplified operation steps, reduced risk of electric shock, opening and closing smooth and reliable results
Pending Publication Date: 2020-11-06
CHANGGAO ELECTRIC GROUP CO LTD +1
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Problems solved by technology
For the isolating switch on the pole, the traditional isolating switch is a single-phase double-column vertical opening type isolating switch, and the insulating hook rod is used to operate the three phases of A, B, and C to open and close respectively. The operation is cumbersome and the procedure is complicated.
In addition, when the switch is opened and closed, the insulating hook rod is directly in contact with the switch knife for operation, and there is still a potential safety hazard of electric shock
Method used
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Embodiment Construction
[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0022] In the description of the invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific or...
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The invention discloses a double-column vertically-opened isolating switch which comprises a support, three upper supporting insulators which are parallel to one another and extend out horizontally being arranged at one end of the support, and three lower supporting insulators which extend out horizontally being arranged at the other end of the support and correspond to the upper supporting insulators; a three-phase static contact, respectively fixed at the front end of one upper post insulator; three-phase moving contacts, respectively fixed at the front ends of the lower post insulators; anda three-phase knife, one end of the three-phase knife switch being rotatably connected with the three-phase moving contact, the middle position of the three-phase knife switch being connected with anoperation insulator, and the tail end of the operation insulator being connected with a linkage shaft. The three-phase knife switch is driven to be switched on and off simultaneously through the rotation of one linkage shaft, so that the operation steps are simplified. In addition, switching-on and switching-off can be performed only by operating the linkage shaft during switching-on and switching-off, so that the risk of electric shock is greatly reduced, and the switching-on and switching-off operation process is safer and more reliable.
Description
technical field [0001] The invention relates to the field of electric switchgear, in particular to a double-column vertical opening type isolating switch. Background technique [0002] At present, with the rapid development of the economy, the urban 12 kV power grid system has been upgraded on a large scale. For the isolating switch on the pole, the traditional isolating switch is a single-phase double-column vertical opening type isolating switch, which uses insulating hook rods to operate the three phases of A, B, and C to open and close respectively. The operation is cumbersome and the procedure is complicated. Moreover, when the switch is opened and closed, the insulating hook rod directly contacts the switch knife for operation, and there is still a potential safety hazard of electric shock. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention p...
Claims
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IPC IPC(8): H01H31/02
CPCH01H31/026
Inventor 秦荣育吴上罗冠军周键王林军
Owner CHANGGAO ELECTRIC GROUP CO LTD