Dual-switching uninterrupted power supply device

Abstract

The invention discloses a dual-switching uninterrupted power supply device, which comprises a power supply, a UPS and a PLC device. The power supply end of the power supply provides power for the PLC device through the UPS. The dual-switching uninterrupted power supply device is characterized in that the dual-switching uninterrupted power supply device also comprises an uninterrupted switching module, an instantaneous constant-voltage power supply module, a stand-by power supply switching module and a stand-by power supply. A power connection port of the uninterrupted switching module is connected with power output ports of the power supply and the UPS; a power output port of the uninterrupted switching module is connected with the instantaneous constant-voltage power supply module; a power connection port of the stand-by power supply switching module is connected with the instantaneous constant-voltage power supply module and the stand-by power supply; and a power output port of the stand-by power supply switching module is connected with the PLC device. By adding the uninterrupted switching module between the UPS and the PLC system, automatic switching between the two paths of power supplies is realized; and meanwhile, through the stand-by power supply for uninterrupted switching, seamless switching of the PLC power supply system is ensured, and continuous operation of electric equipment is ensured.

Description

technical field [0001] The invention relates to the technical field of PLC power supply, in particular to a double-switching uninterrupted power supply device. Background technique [0002] At present, PLC has been widely used in various industries such as iron and steel, petroleum, chemical industry, electric power, building materials, machinery manufacturing, automobile, light textile, transportation, environmental protection, culture and entertainment at home and abroad. For example, many power distribution equipment and auxiliary power supply equipment in the power supply system use PLC as the core of the automatic control system, and adopt a decentralized centralized control system to ensure the smooth operation of the power supply system and the normal use of power users. PLC plays a vital role. role. Among them, the power supply system is an important link to ensure the normal operation of the PLC system. In order to ensure the smooth operation of the power supply sy...

AI Technical Summary

Problems solved by technology

The fastest way to deal with it is to replace the UPS. It takes about 1 hour to replace the UPS if there are spare parts. If there are no spare parts, the replacement period will be longer; hours or even days

[0004] In addition, the instantaneous voltage of the power supply system is unstable, and the damage to the equipment will be immeasurable. Therefore, it is necessary to ensure the stability of the power supply

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