24kv solid insulated fully-closed switch equipment

Abstract

The invention discloses 24kV solid insulated fully-closed switch equipment, which is applied to an alternating current trunk line or an alternating current distribution network and comprises a three phases of high-voltage load switch units; each phase of high-voltage load switch unit comprises a switch insulated hood fixed in a box body, a driving hood, an isolating switch, an earthed switch and a vacuum switch; the upper part of the three phases of switch insulating hoods are connected with the driving hood which is formed by connecting an upper half cylinder and a lower half cylinder; and the isolating switch, the earthed switch and the vacuum switch are arranged in the switch insulating hood and the driving hood. The invention has the advantages of compact structure, low cost, safe use and easy maintenance and debugging.

Description

technical field [0001] The invention relates to a circuit device of an AC main line or an AC power distribution network, in particular to a 24KV solid-insulation fully-enclosed switchgear. Background technique [0002] Traditional 24KV switchgear mostly uses SF6 gas to seal and insulate high-voltage vacuum switches; because SF6 gas is toxic after arc extinguishing and is easy to leak, the metal box is bulky, requires high sealing performance, and the processing technology is complicated, resulting in the box body The cost is high, the maintenance and detection are complicated, and the protection level is not enough, and the charged body is exposed, which is eroded by air and dust, which can easily cause corrosion of the charged body, reduce the insulation level, and easily cause personal casualties; Larger, inconvenient to install and debug, and cannot be replaced and repaired on site; the busbar is located at the bottom of the switch, which is inconvenient to assemble and m...

AI Technical Summary

Problems solved by technology

[0002] Traditional 24KV switchgear mostly uses SF6 gas to seal and insulate high-voltage vacuum switches; because SF6 gas is toxic after arc extinguishing and is easy to leak, the metal box is bulky, requires high sealing performance, and the processing technology is complicated, resulting in the box body The cost is high, the maintenance and detection are complicated, and the protection level is not enough, and the charged body is exposed, which is eroded by air and dust, which can easily cause corrosion of the charged body, reduce the insulation level, and easily cause personal casualties; Large, inconvenient for installation and debugging, and cannot be replaced and repaired on site; the busbar is located at the bottom of the switch, which is inconvenient for assembly and maintenance

[0003] The existing solid insulated fully enclosed switch is only suitable for 10KV switchgear, not suitable for switchgear with larger working power, so such a combined electrical appliance is needed to meet the use of switchgear with a large workload

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