Combined medium voltage vacuum circuit breaker

A vacuum circuit breaker and circuit breaker technology, which is applied to high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve the problems of high material consumption and unfavorable miniaturization of medium-voltage metal-enclosed switchgear, and achieve high material consumption. , the overall weight saving, the effect of facilitating miniaturization

Inactive Publication Date: 2008-10-29
石家庄科林电气设备有限公司
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AI Technical Summary

Problems solved by technology

However, the medium voltage vacuum circuit breaker and the isolating switch of this existing fixed vacuum circuit breaker are installed in two places, so that the medium voltage vacuum circuit breaker and the isolating switch are required to be provided with frames respectively. The problem of miniaturization of metal-enclosed switchgear, and the material consumption is high

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  • Combined medium voltage vacuum circuit breaker
  • Combined medium voltage vacuum circuit breaker
  • Combined medium voltage vacuum circuit breaker

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1, figure 2 , image 3 , Figure 4 , the combined vacuum circuit breaker disclosed in the present invention is mainly composed of an operating mechanism box 1, a main circuit subassembly 2, an upper isolating switch 3, an upper isolating switch operating rod 4, a lower isolating switch 5, an insulating support plate 6, and a lower isolating switch operating rod 7. The main body of the vacuum circuit breaker is composed of 8.

[0024] Such as Figure 5 As shown, the support 2-5 of the upper isolating switch is connected with the upper terminal 2-4 of the vacuum circuit breaker, and the support 2-2 of the lower isolating switch is connected with the lower terminal 2-6 of the vacuum circuit breaker. The static end and the moving end of the vacuum interrupter 2-3 are respectively connected with the upper terminal and the lower terminal. When the vacuum c...

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Abstract

The invention provides a combined type medium voltage vacuum breaker. The medium voltage vacuum breaker and the isolating switch of the existing vacuum breaker are all respectively provided with a framework; the structure has the problem of not beneficial to the miniaturization of a medium voltage metal closed switch device and consumes more materials; the medium voltage vacuum breaker provided by the invention combines the medium voltage vacuum breaker and an upper isolating switch as well as a lower isolating switch; besides, the upper isolating switch is electrically connected with the upper terminal of the medium voltage vacuum breaker; the lower isolating switch is electrically connected with the lower terminal of the medium voltage vacuum breaker; the upper isolating switch is also provided with a movable conductive rod; the lower isolating switch is provided with a movable conductive rod; the invention also includes an operation rod which controls the conductive rods of the upper isolating switch and/ or the lower isolating switch to move. Compared with separated assembly, the combined type medium voltage vacuum breaker provided by the invention saves 30 percent of the size and saves 20 percent of the gross weight, thus being convenient for realizing the miniaturization of the medium voltage metal closed switch device.

Description

technical field [0001] The invention relates to a combined medium voltage vacuum circuit breaker. Background technique [0002] At present, there are two structures of vacuum circuit breakers used in the field of medium-voltage power distribution equipment in my country: [0003] One is a handcart-type vacuum circuit breaker, the high-voltage current is turned on and off through the operation of the vacuum arc chamber, and the high-voltage fracture is isolated by pushing and moving the handcart in the medium-voltage power distribution cabinet. [0004] The other is a fixed vacuum circuit breaker, the body of which is fixed in the medium-voltage power distribution cabinet with bolts. The conduction and disconnection of the high-voltage current are realized through the operation of the vacuum arc chamber. The isolation of the high-voltage breaker needs to be equipped with more than one isolating switch. [0005] The existing fixed vacuum circuit breaker has an upper terminal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/66
Inventor 段洪民田永志
Owner 石家庄科林电气设备有限公司
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