Electric control device for earthing switch of medium voltage switchgear
A grounding switch and switchgear technology, applied in the field of electric control devices for medium-voltage switchgear grounding switches, can solve problems such as unsuitable for intelligent operation, safety accidents, time-consuming and labor-intensive problems, and achieve the elimination of potential safety hazards, simple structure, and precise control Effect
Inactive Publication Date: 2014-09-24
合肥鑫伟电力设备有限公司
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Problems solved by technology
The existing switch cabinets are all manually operated by manpower. This operation method is time-consuming and laborious, and is not suitable for intelligent operation. Safety accidents are prone to occur during actual operation.
Method used
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[0016] The content of the present invention will be described below in conjunction with specific embodiments.
[0017] Such as figure 1 Shown is a structural schematic diagram of the electric control device for the earthing switch of the medium-voltage switchgear according to the present invention. The switchgear of the present invention uses an electric control device to control the grounding switch, and uses a manual device or an electric device to control the open and closed states of the grounding switch.
[0018] Such as figure 1 As shown, in the switchgear from left to right, there are respectively: the first partition 1, the second partition 2, the third partition 3, and the fourth partition 4, which are arranged in parallel with each other, which mainly play the role of supporting and fixing Function: The driving shaft 6, the transmission shaft 7, and the operating shaft 8 are also arranged in the switch cabinet, and they are parallel to each other. A motor 5 is arr...
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The invention relates to an electric control device for an earthing switch of medium voltage switchgear. A first partition plate, a second partition plate, a third partition plate and a fourth partition plate are arranged in the medium voltage switchgear sequentially from left to right and parallel to each other, a switching-on travel switch is arranged on the first partition plate, a switching-off travel switch is arranged on the second partition plate and corresponding to the position of the switching-on travel switch, a switching-on cam and a switching-off cam are arranged on an operation large shaft, the switching-on cam rotates to trigger the switching-on travel switch, and the switching-off cam rotates to trigger the switching-off travel switch. According to the electric control device for the earthing switch, two corresponding travel switches are adopted to control a switching-on state and a switching-off state, and the cams capable of triggering the travel switches to act are arranged on the existing manual operation large shaft. Therefore, the electric control device for the earthing switch of the medium voltage switchgear is simple in structure, accurate in control and capable of making up for the shortcoming of manual operation and removing safety hazards caused by manual operation.
Description
technical field [0001] The invention relates to an electric control device for a grounding switch of a medium-voltage switch cabinet, and belongs to the field of electrical technology. Background technique [0002] With the comprehensive advancement of the national smart grid construction, the power grid not only requires the switchgear in the power system to be intelligent in terms of monitoring, control and protection, but also requires the operation of the switchgear to be intelligent. In the intelligent switchgear, the accurate and reliable electric operating mechanism of the grounding switch becomes an indispensable product. [0003] The grounding switch is one of the main components of the switchgear, and it mainly plays the role of grounding protection and safety in the switchgear. The existing switch cabinets are all manually operated by manpower, which is time-consuming and labor-intensive, and is not suitable for intelligent operation, and safety accidents are pro...
Claims
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Inventor 周伟
Owner 合肥鑫伟电力设备有限公司