Switch of two power supplies and method for overlapping conversion of neutral line thereof

Abstract

The invention discloses a switch of two power supplies and a method for overlapping conversion of a neutral line thereof. A common N-phase moving contact component of the switch of the two power supplies comprises a common driving part and a common connecting part which are fixedly or rotatablely arranged on a common driving square shaft respectively; a standby N-phase moving contact component comprises a standby driving part and a standby connecting part which are fixedly and rotatablely arranged on a standby driving square shaft respectively; the common driving part is used for matching with the standby connecting part so as to drive a moving contact of the standby N-phase moving contact component to electrically contact an N-phase fixed contact, or disconnect the electrical contact between the moving contact and the N-phase fixed contact; and the standby driving part is used for matching with the common connecting part so as to drive a moving contact of the common N-phase moving contact component to disconnect the electrical contact with the N-phase fixed contact, or electrically contact the N-phase fixed contact. The switch of the two power supplies can prevent the neutral line from 'emptying out' in the conversion process to effectively protect electrical equipment.

Description

technical field [0001] The invention relates to the field of double power switches, in particular to a double power switch capable of realizing overlapping of neutral lines. Background technique [0002] An existing dual power switch includes a switch body and an operating unit for controlling the switch body. The switch body generally has a three-phase four-wire structure. The switch body has two driving square shafts arranged parallel to each other, which are the normal driving square shaft and the backup driving square shaft. The rotation of the driving square shaft is the switch The conversion of the body is controlled by the solenoid valve of the operating unit; Figures 1a to 1c As shown, the switch body has four commonly used power supply terminals, which are the commonly used A-phase terminal A1, the commonly used B-phase terminal B1, the commonly used C-phase terminal C1, and the commonly used N-phase terminal N1; the switch body has The four spare power supply ter...

AI Technical Summary

Problems solved by technology

In practical applications, the neutral line drift voltage due to zero-off is as high as tens of volts or even hundreds of volts, which is likely to cause damage to electrical equipment, such as directly causing the server to restart or burn out, posing a major safety hazard

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