Novel armored fixed metal-enclosed switchgear

Abstract

The invention belongs to the field of circuit control equipment, and provides a novel armored fixed metal-enclosed switchgear comprising a cabinet body which is internally provided with an upper isolation switch, a lower isolation switch, a first grounding switch, a second grounding switch and a third grounding switch. A rotating mechanism used for respectively controlling the opening and closing operation of the upper isolating switch, the lower isolating switch and the second grounding switch is connected in the cabinet body, a first transmission mechanism used for controlling the opening and closing operation of the first grounding switch is connected in the cabinet body, and a second transmission mechanism used for controlling the opening and closing operation of the second grounding switch is connected in the cabinet body. According to the design of the invention, a mode of two isolating switches and three grounding switches is met, the safety and reliability of operation are improved, and the trouble of hanging and grounding at the bus of each part during maintenance is reduced.

Description

technical field [0001] The invention relates to the field of circuit control equipment, in particular to a novel armored fixed metal-enclosed switchgear. Background technique [0002] According to the needs of the domestic market, the original JGN-40.5kV fixed metal-enclosed switchgear can no longer meet the operation and use requirements of users with higher standard requirements such as China Southern Power Grid. The original JGN-40.5kV fixed metal-enclosed switchgear adopts angle iron Welded and formed structure, the external protection level of the cabinet and the protection level between each room are low, the structure is not reasonable, and the isolation switch operation cannot meet the user's requirements, especially the installation requirements with multiple grounding switches. [0003] In order to meet the higher-level requirements of users such as China Southern Power Grid, we have carried out corresponding design improvements on some structures of the original J...

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Problems solved by technology

[0002] According to the needs of the domestic market, the original JGN-40.5kV fixed metal-enclosed switchgear can no longer meet the operation and use requirements of users with higher standards such as China Southern Power Grid. The original JGN-40.5kV fixed metal-enclosed switchgear uses angle iron Welded and formed structure, the external protection level of the cabinet and the protection level between the rooms are all low, the structure is not reasonable enough, and the operation of the isolating switch cannot meet the user's requirements, especially the installation requirements with multiple grounding switches.

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