Automatic power-on intelligent leakage protector

Abstract

The invention discloses an automatic power-on intelligent type leakage protector, which includes a live wire, a neutral wire, a ground wire, a wall wire, a release device, a rectification and voltage stabilization circuit, an amplifying circuit, a zero-sequence transformer connected to the amplifying circuit, and a grounding circuit. The line transformer also includes optocoupler U1, optocoupler U2, optocoupler U3 and single-chip microcomputer IC1. The present invention has an automatic power-on intelligent leakage protector, which overcomes the shortcomings and potential safety hazards of all existing leakage protectors. It is an all-round protective leakage protector integrating all functions, intelligent, safe and reliable; Electricity, to achieve the effect of water and electricity isolation, there is no hidden danger in use; it overcomes all abnormalities caused by electrification and wiring errors of the ground wire, and the system can effectively identify, detect and control many other features.

Description

technical field [0001] The invention relates to the technical field of electricity safety protection, in particular to an automatic power-on intelligent leakage protector. Background technique [0002] The protection function of the leakage protector is based on the premise that the power supply is normal, and the ground wire is abnormally charged or the load is leaking to provide the protection function of cutting off the load power supply circuit. Because users generally use the socket switch to cut off the power supply of the leakage protector. The purpose of energy saving has been achieved by stopping the machine. Because of this, if the leakage protector loses its working power, if the ground wire is abnormally charged at this time, the leakage protector will not trip and cause an electric shock. And so on, poor contact with the socket is also equivalent to turning off the power supply of the leakage protector, which seriously affects personal safety hazards. Contents...

AI Technical Summary

Problems solved by technology

[0002] The protection function of the leakage protector is based on the premise that the power supply is normal, and the ground wire is abnormally charged or the load leaks to provide the protection function of cutting off the load power supply circuit. Because users generally use the socket switch to cut off the power supply of the leakage protector. The machine stops working to achieve the purpose of energy saving. Because of this, if the leakage protector loses its working power, if the ground wire is abnormally charged at this time, the leakage protector will not trip and cause an electric shock.

And so on, the poor contact of the socket is also equivalent to turning off the power supply of the leakage protector, which seriously affects the hidden danger of personal safety.

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