An intelligent high-voltage dual power conversion switch

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

Inactive Publication Date: 2008-09-17
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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  • An intelligent high-voltage dual power conversion switch
  • An intelligent high-voltage dual power conversion switch
  • An intelligent high-voltage dual power conversion switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] figure 1 It is a schematic structural diagram of the first structure of the present invention, and shows the first specific embodiment of the present invention.

[0022] This embodiment is an intelligent high-voltage dual power switch, see figure 1 , Including the airtight box 1, three main power connection posts 2, three backup power connection posts 3 and three load connection posts 4 arranged on the airtight box body 11, and the power supply arranged in the airtight box 1 Switching mechanism 5; characterized in that: 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 movable contacts 62, three static contacts A head 63 and an operating mechanism 64, each of the moving contacts 62 / static contacts 63 is electrically connected to a corresponding throwing and cutting contact knife 6, and each of the static contacts 63 / moving contacts 62 is connected to a corre...

Embodiment 2

[0024] figure 2 It is a schematic structural diagram of the second structure of the present invention, showing the second specific embodiment of the present invention.

[0025] This embodiment is basically the same as embodiment 1, the difference is: see figure 2 , The throwing and cutting touch blades 52 are V-shaped touch blades, and the switching mechanism 5 further includes a touch blade rotating shaft 53 used as the rotation center axis of each V-shaped touch blade, and used to connect the switching spindle 51 with each V-shaped touch blade. Insulated rod 54 of the contact knife.

[0026] There are two common V-shaped contact knives: "three-station" and "two-station". The "three-station" V-shaped contact knife means that the contact knife 52 can stay in the electrical connection with the main power terminal 2 On the first station, the second station, which is electrically connected to the backup power terminal 3, is located in the middle of the main power terminal 2 and th...

Embodiment 3

[0028] image 3 with Figure 4 Shows the third specific embodiment of the present invention, in which image 3 Is a schematic diagram of the third structure of the present invention, Figure 4 Yes image 3 The structure diagram of the intelligent high-voltage dual power supply switch is shown when it is in the main power supply state.

[0029] This embodiment is basically the same as embodiment 1, the difference is: see image 3 with Figure 4 The airtight box 1 in this embodiment and the power switching mechanism 5 arranged in the airtight box 1 are different from those in the first embodiment in shape and structure. The basic shape of the airtight box 1 in this embodiment is similar In a circular shape, the airtight box 1 is provided with a metal slide 8 for electrical connection with the movable contact 62 / static contact 63 of the vacuum circuit breaker 6, and each switching contact in the power switching mechanism 5 Each of the knives 52 has two contact arms symmetrically arrang...

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PUM

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Abstract

The invention discloses an intelligent high-pressure dual power supply shift switch, comprising a gas seal box, three primary power supply terminals disposed on the gas seal box, three standby power supply terminals and three load terminals, and a power supply shift mechanism set in the gas seal box; characterized that: the switch also comprises a three-phase vacuum breaker device, the three-phase vacuum breaker device comprises three vacuum interrupters, three moving contacts, three static contact and a operation mechanism; each of the moving contact/static contact is connected with the corresponding primary power supply terminal/standby power supply terminal via the power supply shift mechanism, each of the static contact/moving contact is connected with a corresponding load terminal. The invention has the advantages of simple structure, low costs, suitable for eliminating potential security hazard effectively.

Description

Technical field [0001] The invention belongs to the technical field of high-voltage electrical switches, and particularly relates to an intelligent high-voltage dual power supply 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-provided line) are used in the power supply system. When one line power fails, the other line supplies power. . To this end, a control device is needed, and no less than two high-voltage switch cabinets should be used indoors, and no less than two pole-mounted high-voltage switches can be used outdoors to achieve the requirements for selecting power supply lines. This control method not only increases the user's equipment and operating costs, but also potential power supply accidents. With two or more high-voltage switch cabinets / column high-voltage switches, it is difficult to realize the mec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/52H01H33/66H01H33/662H01H33/666H01H31/20H02J9/06
CPCY02B70/30Y04S20/20
Inventor 黄勤飞
Owner 黄勤飞
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