Single-phase residual electricity quantity signal trigger and monitoring method

Abstract

The invention discloses a single-phase residual electricity quantity signal trigger, which comprises a current transformer, a processor and an alarm, wherein the current transformer is used for detecting instantaneous current difference between a phase line and a null line; the processor is connected with the current transformer, obtains leakage current through calculation according to the instantaneous current difference, compares the leakage current with a set leakage current threshold value, sends leakage current information to a concentrator when the leakage current exceeds the leakage current threshold value, and sends an alarm command; and the alarm is connected with the processor, and carries out leakage current alarm according to the command of the processor. The single-phase residual electricity quantity signal trigger can help the user to analyze causes of current leakage, so as to perform timely troubleshooting, and protect the normal electricity utilization of the user. The invention further provides a single-phase residual electricity quantity signal monitoring method.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a single-phase remaining power signal trigger and a monitoring method for the single-phase remaining power signal. Background technique [0002] With the improvement of residents' living standards, more and more household appliances have entered the family, such as refrigerators, washing machines, electric water heaters, TVs and air conditioners, etc. Due to the aging of wire insulation, household appliances, wires, etc. may generate leakage current. Generally, users will protect the action device (household protector) according to the residual current; however, some leakage currents are difficult to find. In order to use electricity normally, the user will remove the household protector and continue to use it, which may cause serious consequences; such as electric shock , fire, equipment damage, etc. Because residents continue to use electricity in the event of electricity ...

AI Technical Summary

Problems solved by technology

Generally, users will protect the action device (household protector) according to the residual current; however, some leakage currents are difficult to find. In order to use electricity normally, the user will remove the household protector and continue to use it, which may cause serious consequences; such as electric shock , fire, equipment damage, etc.

Because residents continue to use electricity in the event of electricity leakage, it is easy to increase the leakage current of the general insurance until it exceeds the set value and trips, which will affect the normal electricity consumption of a large number of users.

Once the general insurance trip occurs, the traditional investigation method is time-consuming and laborious, and it is often difficult to find the fault location, wasting manpower and material resources

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