Switch cabinet valve device and switch cabinet using same

Abstract

The invention relates to a switch cabinet valve device and a switch cabinet using the same. The switch cabinet valve device comprises a guide base, wherein the guide base is provided with a touch installation cavity and more than two movable valves, the touch installation cavity is used for installing a stationary contact of a switch cabinet main loop, and the movable valves carry out guide movement along a forward and backward direction, are mutually nested and are successively in telescopic cooperation; the rear part of each movable valve is provided with a rear opening stop structure; the front part of each movable valve is provided with a closing stop structure which is used for carrying out backward stop cooperation with the corresponding closing stop structure arranged on the front part of an adjacent movable valve behind the movable valve; each movable valve is provided with an opening position and a closing position in the guide movement direction of the movable valve; the movable valve used for nesting on an innermost layer is in transmission connection with a driving mechanism used for driving the movable valve to move between the opening position and the closing position. The switch cabinet valve device can meet the use requirements of the switch cabinets arranged from front to rear in sequence in the main loop.

Description

technical field [0001] The invention relates to a switch cabinet shutter device and a switch cabinet using the shutter device. Background technique [0002] For medium-voltage metal-enclosed switchgear with air as the main insulation method, in order to make the loss of continuity category meet the requirements of LSC2B category, when people enter the main switch compartment, there must be a valve to cover the live static contact part, so that people cannot touch. LSC2B is a category of loss of continuity of operation. It is an important content in GB3906-2006, which stipulates that "except for the functional unit that is opened and isolated, all other functional units can continue to operate", which has great impact on the reliability and reliability of equipment. Security means a lot. [0003] At present, the valves of switchgears at home and abroad are designed for medium-voltage switchgear whose main circuit is arranged in the left, middle and right, and the isolation ...

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Problems solved by technology

[0004] The above-mentioned valve technology is mature and widely used, but for the switchgear with the main circuit static contacts arranged in the front, middle and rear, since the static contacts and contact boxes to be covered by the valve are arranged along the depth direction of the cabinet, the depth of the blocked area is very large , and other components need to be installed in the width direction of the cabinet, so the width of the valve device is greatly limited. At present, there is no valve device specially designed for the switchgear arranged in the front, middle and rear of the main circuit, which limits the front, middle and rear arrangement of the main circuit. The development and application of switchgear

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