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Intelligent high voltage duplicate power source converting switch

A dual power switching and power switching technology, applied in high voltage/high current switches, electric switches, emergency power supply arrangements, etc., can solve the problems of personnel and equipment damage, line power supply, arc short circuit, air breakdown, etc., to eliminate potential safety hazards, The effect of ensuring safe use and simplifying the structure

Inactive Publication Date: 2009-08-12
黄勤飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the controller fails, if the isolating switch is switched under load without disconnecting the vacuum circuit breaker, the strong load instantaneous power-off voltage can easily break down the air, causing arc short circuit, causing damage to personnel and equipment. Accidents such as line power failure

Method used

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  • Intelligent high voltage duplicate power source converting switch
  • Intelligent high voltage duplicate power source converting switch
  • Intelligent high voltage duplicate power source converting switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Figure 1 to Figure 4 A specific embodiment of the invention is shown in which figure 1 It is the front view outline drawing of the first structure of the present invention; figure 2 yes figure 1 The A-direction view of the intelligent high-voltage dual power supply switch shown; image 3 yes figure 1 The B-direction view of the intelligent high-voltage dual power supply switch shown; Figure 4 yes figure 1 The schematic diagram of the structure of the intelligent high-voltage dual power supply switching switch is shown.

[0028] This embodiment is an intelligent high-voltage dual power switch, see figure 1 and Figure 4 , comprising an airtight box 1, three main power terminals 2, three backup power terminals 3 and three load terminals 4 arranged on the airtight box body 11, and a power switch arranged in the airtight box 1 Mechanism 5, and operating mechanism (not drawn on the figure); Described power switching mechanism 5 comprises a switching main shaft 51,...

Embodiment 2

[0031] Figure 5 It is the second structural schematic diagram of the present invention, showing the second specific implementation mode of the present invention.

[0032] This embodiment is basically the same as Embodiment 1, the difference is: see Figure 5 , the switch also includes a three-phase vacuum circuit breaker device 6, the three-phase vacuum circuit breaker device 6 includes three vacuum interrupters 61, three moving contacts 62, three static contacts 63 and an operating mechanism 64 Each of the moving contacts 62 is softly connected to a corresponding switching contact knife 6; the operating mechanism 64 includes a drive shaft 641 and a drive rod 642 for connecting the drive shaft 641 and the moving contact 62; The outer surface of the static contact 63 of each vacuum circuit breaker is provided with an insulating post 631 to form an insulating terminal. The insulating terminal wrapped with the static contact 63 is arranged on the outer surface of the box body 1...

Embodiment 3

[0036] Figure 6 It is the third structural schematic diagram of the present invention, showing the third specific implementation mode of the present invention.

[0037] This embodiment is basically the same as Embodiment 2, the difference is: see Figure 6 , each of the throwing and cutting contact blades 52 is a V-shaped contact blade.

[0038] Embodiment 2 and embodiment 3 have positive advantages: (1) each embodiment reduces a switching main shaft, by The three throwing and cutting contact knives and the mechanical interlocking device of the switching spindle greatly simplify its structure; in addition, even if the products of each embodiment are damaged for some reason, since there is only one set of throwing and cutting contact knives, and at most they can only be connected with one set of power supply The terminals are electrically connected, so there will be no accidents of dual power feeding at the same time, effectively eliminating potential safety hazards. (2) The ...

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Abstract

The invention discloses an intelligent high-voltage double-power switch, which comprises an airtight box, three main power terminals. three standby power terminals and three load terminals which are arranged on an airtight box body, and a power switching mechanism arranged in the airtight box. The power switching mechanism comprises a switching main shaft, and three switching contact knives which can be driven by the switching main shaft to rotate certain degrees. The intelligent high-voltage double-power switch has the advantages of simple structure and lower cost, and can effectively eliminate potential safety hazards.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electric switches, and in particular relates to an intelligent high-voltage dual-power switch. Background technique [0002] At present, in order to improve the reliability of power supply, a large number of dual power supply lines (two power supply lines, generally one power system line and one self-contained line) are used in the power supply system. When the power supply of one line fails, the other line supplies power. . For this reason, control devices are needed, and no less than two high-voltage switchgears should be used indoors, and no less than two high-voltage switches on poles should be used outdoors, so as to realize the requirements of selecting power supply lines. This control method not only increases the user's equipment and operating costs, but also poses hidden dangers of power supply accidents. For two or more high-voltage switchgear / column-mounted high-voltage switches,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/52H01H33/66H02J9/06
CPCY02B70/30Y04S20/20
Inventor 黄勤飞
Owner 黄勤飞
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