A standard mns low-voltage withdrawable switch cabinet with half a functional board

Abstract

The invention relates to the field of switch cabinet bodies, in particular to a standard MNS low-voltage drawing-out type switch cabinet body of a half function board. The standard MNS low-voltage drawing-out type switch cabinet body of the half block function board comprises a wire inlet unit. The wire inlet unit comprises the half function board, a busbar lining board and an L-shaped vertical bar. A wire inlet box is arranged on the back portion of the half function board. A copper sleeve is arranged in the wire inlet box and is in contact connection with the L-shaped vertical bar. The busbar lining board covers the L-shaped vertical bar. A plug-in port for inlet and outlet of a wire insertion sheet is reserved in the busbar lining board. The standard MNS low-voltage drawing-out type switch cabinet body of the half function board has good insulation effect, and can effectively insulate the influence of electric arcing caused by failure short circuits of switch elements on adjacent units, ensures that failed unit accidents cannot cause related accidents of adjacent function units, ensures that power supply of other devices is stable, and reduces loss.

Description

technical field [0001] The invention relates to the field of switch cabinets, in particular to a standard MNS low-voltage withdrawable switch cabinet with half a functional board. Background technique [0002] MNS low-voltage withdrawable switchgear is suitable for power plants, substations, petrochemical, metallurgy, steel rolling, light industry textiles and other factories and mines, residential quarters, high-rise buildings and other places, as AC 50-60Hz, rated working voltage AC 660V and below It is used for power conversion, distribution and control of power distribution equipment in the power system. [0003] In the prior art, the switch element is prone to fault short circuit, and when the switch element has a fault short circuit, flashover will occur, and the generated flashover will have a certain impact on the busbar. [0004] In view of the above problems, there is an urgent need for a standard MNS low-voltage withdrawable switch cabinet with half a functional ...

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Problems solved by technology

[0003] In the prior art, the switching element is prone to short-circuit failure. When the switching element fails and short-circuits, arcing will occur, and the resulting arcing will have a certain impact on the busbar.

[0004] In view of the above problems, there is an urgent need for a standard MNS low-voltage withdrawable switch cabinet with half a functional board with good isolation effect, so as to solve the faulty unit accidents in the prior art that will cause adjacent functional units The problem of accidents

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