Load switch used in visual fracture state of 24kV power distribution system
A load switch and power distribution system technology, applied in the direction of electric switches, high-voltage/high-current switches, circuits, etc., can solve problems such as cable interval live operation, switches have been operated in place, and analog indications are lost, so as to prevent personal injury accidents Effect
Active Publication Date: 2012-07-25
BEIJING HEROSAIL POWER SCI & TECH
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the existing load switch, the switch operating mechanism is connected with an analog sign. When the operator opens and closes the switch, the analog sign is driven by mechanical rotation to indicate the opening and closing of the switch, but the opening and closing of the switch cannot be directly observed with the naked eye. Gate status
In actual work, the analog indicator board will lose the function of analog indication due to the failure of the switch operating mechanism, resulting in the switch pointer being in the off position after operation, while the switch contacts are actually in the closed position, and the internal contacts of the switch are not completely separated or separated. The gap is not large enough, and the operator can easily have the illusion that the switch has been operated in place because the operator cannot directly observe the opening and closing state of the switch. harm
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] see figure 1 and figure 2 , a load switch for visual fracture status of 24kV power distribution system, the load switch is a dynamic and static contact rotary load switch, figure 1 The middle is a schematic plan view of the operation panel and the visible window located at the front of the load switch. A visible window 2 is set on the upper part of the operation panel 1. The visible window 2 and the operation panel 1 are connected as a whole. The contact parts of the contacts correspond to each other, and the relative positions of the moving and static contacts can be directly observed. Specifically, the visible window can show that the static contact is located in the upper middle position of the visible window, and the moving contact coincides with the static contact or the moving contact deviates 45 degrees to the left or 45 degrees to the right with the operating axis as the center, corresponding to The switch is closed or grounded or disconnected in three positi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A load switch used in visual fracture state of a 24kV power distribution system is disclosed; an operation panel of the switch is added with a visual window, and the on and off state of the switch can be observed directly with naked eyes; a static contact structure inside the switch is improved with better safety, and can satisfy the requirement of 24kV level voltage higher than the level of conventional 10kV voltage, which is characterized by comprising the operation panel on a shell as well as a dynamic contact rotary load switch and a static contact rotary load switch located in the shell;the operation panel is provided with the visual window which is capable of observing the relative position of a dynamic contact and a static contact, the visual window is provided with a transparent insulation material, and the static contact is provided with an arc extinguishing magnet.
Description
technical field [0001] The invention relates to a load switch of a high-voltage electric power system, in particular to a load switch for the visible fracture state of a 24kV power distribution system, which can directly observe the opening and closing state of the load switch with the naked eye, and can be used for higher voltages The grade 24kV power distribution system greatly improves the safety and reliability of power distribution system operation and maintenance. Background technique [0002] The operation and maintenance of electric high-voltage systems are often very dangerous, and often cause casualties due to incorrect operations. In the existing load switch, the switch operating mechanism is connected with an analog sign. When the operator opens and closes the switch, the analog sign is driven by mechanical rotation to indicate the opening and closing of the switch, but the opening and closing of the switch cannot be directly observed with the naked eye. gate st...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/53H01H33/18
Inventor 刘玉刚刘浩王德明
Owner BEIJING HEROSAIL POWER SCI & TECH