Remote control distribution box with auxiliary power supply

Abstract

The invention discloses a remote control distribution box with an auxiliary power supply. The remote control distribution box comprises a distribution box body, a single-phase circuit breaker, a three-phase circuit breaker, an auxiliary power supply module, a distribution control circuit board, an alternating current contactor, a remote control power supply switch and an EMI filter. When the single-phase circuit breaker is in a closed state, AC220V input by the power supply equipment is converted into auxiliary power supply DC24V to be output, and when the three-phase circuit breaker is in a closed state, the power distribution control circuit board controls whether AC380V input by the power supply equipment is output or not according to a remote / local control state and a power-up signal state fed back by the environment control equipment. The remote control distribution box has a remote control state and a local control state, and can output DC24V when not outputting AC380V, so that the safety and convenience in use are improved.

Description

technical field [0001] The invention belongs to electrical design technology, in particular to a remote control distribution box with auxiliary power supply. Background technique [0002] The distribution box is to assemble switchgear, display instrument, including electrical appliances and control equipment in a metal box according to requirements. It is responsible for distributing the three-phase alternating current (AC380V) or two-phase alternating current (AC220V) sent by the power station to the back-end power consumption units according to the demand, and providing control and protection. [0003] High-power equipment such as radars and jammers usually use environmental control devices to dissipate heat. Before the equipment is powered on, it is necessary to ensure that the environmental control devices are normal. Therefore, it is necessary to supply power to the environmental control equipment in advance. When the status of the environmental control equipment is con...

AI Technical Summary

Problems solved by technology

[0004] The current distribution box usually can only distribute one kind of AC power, and does not have the function of auxiliary power supply

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