Armored removable indoor AC metal-enclosed switchgear

Abstract

The invention discloses an armored movable-type indoor AC metal enclosed switchgear, which comprises a switchgear body and a protection device. The protection device comprises four inner water tanks, an outer water tank, four power failure mechanisms, four moisture-proof boxes and three pressure release devices, wherein the inner water tanks are contacted with the inner wall of the switchgear body, and each inner water tank is internally provided with an inner circulation tube and a valve; the outer water tank is arranged on the outer wall of the switchgear body and is internally provided with an outer circulation tube, a pump and a valve; the four inner water tanks are communicated with the outer water tank; and the four power failure mechanisms each comprise a funnel, a liquid-collecting cylinder, a plurality of tension springs, a waterproof switch, a waterproof jacket, a plug and a plurality of support columns, the tension springs being arranged in a manner that when the tension springs are in a natural elongation state, a bump of the liquid-collecting cylinder is not contacted with the water-proof switch, and under the tension effect thereof, the tension springs drive the liquid-collecting cylinder to approach to the water-proof switch till triggering the water-proof switch. The armored movable-type indoor AC metal enclosed switchgear has the beneficial effects of reducing temperature of the switchgear body and components in the switchgear body, protecting insulating material on the surface of each component, reducing pressure and humidity in the switchgear body, ensuring safety of users and reducing safety accidents.

Description

Technical field [0001] The invention relates to the safety field of armored removable indoor AC metal enclosed switchgear. More specifically, the present invention relates to an armored removable indoor AC metal-enclosed switchgear. Background technique [0002] Armored removable indoor AC metal-enclosed switchgear, mainly used in power plants, small and medium-sized generators, power distribution, industrial and mining enterprises, power distribution, and the secondary substation of the electrical system. Motor start, etc., for control, protection and monitoring. During the operation of the prior art switchgear, the temperature of busbars, circuit breakers, cables, and relays are likely to rise due to excessive current, and they are easily damaged by long-term high temperature conditions. Insulating materials have potential safety hazards. When an internal fault arc occurs in the circuit breaker, main bus or cable, the air pressure inside the cabinet rises with the appearance o...

AI Technical Summary

Problems solved by technology

[0002] Armored removable indoor AC metal-enclosed switchgear is mainly used in power plants, small and medium-sized generators for power transmission, power distribution for industrial and mining enterprises, and secondary substations in power systems for power reception, power transmission, and large-scale high-voltage Motor starting, etc., are used for control, protection and monitoring. During the operation of the switchgear in the prior art, the temperature of the busbar, circuit breaker, cable, and relay is easy to rise due to excessive current, and the outer surface of the switchgear is easily damaged if it is in a high temperature state for a long time. Insulation materials, there are potential safety hazards, and when the circuit breaker or the main busbar, the cable has an internal fault arc, with the appearance of the arc, the internal pressure of the cabinet rises, and when it reaches a certain pressure value, it will cause injury to the operator, and if in spring, Especially when used in the southern region, the humidity in the cabinet is high, and safety accidents are prone to occur during use

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