Control device for remote change of alternating current of low-voltage electrical appliance to direct current

Abstract

A control device for remote change of the alternating current of a low-voltage electrical appliance to direct current includes a terminal box, an opening position lock, an energy accumulator, a panel,a button, an opening button, a closing button, an indicator light, an entrance / exit device, a position indicator, a side plate, a DC relay, a machine body, a sliding contact, and a tripper. The terminal box is provided with the opening position lock. The button is connected with the opening button. The opening button is fixedly connected with the closing button. An emergency stop intermediate relay is provided with an anti-interference device. The sliding contact is arranged on the machine body. The control device is equipped with a DC delay. The power supply of a start-stop relay is changedinto a DC power supply. The interference between control wires is reduced. The influence of induced electricity is eliminated.

Description

technical field [0001] The invention is a long-distance AC-to-DC control device for low-voltage electrical appliances, which belongs to the field of electrical equipment. Background technique [0002] A low-voltage electrical appliance is a component or device that can switch, control, protect, detect, transform and adjust circuits or non-electrical objects by manually or automatically switching on and off circuits according to external signals and requirements. [0003] The prior art discloses a control and protection device for low-voltage electrical appliances with application number: 201110442031.9, which includes a base and a control and protection module. The control and protection module can be plugged into the base and is interchangeable. The base includes a base and a cover, and the base is equipped with: moving contacts, static contacts and current conductors flowing through the main circuit current; control electromagnets and operating mechanisms, and control the ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a long-distance AC to DC control device for low-voltage electrical appliances, so as to solve the problem that the existing low-voltage electrical appliances use three-phase AC power supply for power supply, use three-phase AC power supply for power supply, and AC control cables In the process of long-distance transmission, there is a phenomenon that the induced electricity cannot be eliminated, so that the motor cannot be stopped after starting, and sometimes the start button cannot be started, which seriously affects the normal operation of the equipment.

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