How to defeat Leakage Current?

Leakage current is the current flowing through an insulator. Any insulator is not absolute "insulation" and will have an extremely low conductivity, but usually the leakage current is so small as to be negligible.

There are four types of leakage current: semiconductor component leakage current, power supply leakage current, capacitor leakage current and filter leakage current.

Leakage current refers to the safety leakage current of electrical appliances.

According to Chinese national Construction Ministry standard JGJ/ T16-92 "Civil Building Electrical Design Code", the rated leakage action current value of electrical appliances can be selected according to the following data: 1.

2. 6 ~ 10mA of electrical equipment in harsh or humid environment;

3. Medical electrical equipment is 6mA;

4. Electric equipment for construction site is 15 ~ 30mA;

5. The circuit of household appliances is 30mA;

6. The switchboard of the complete set is 100mA;

7. Prevent electrical fire for 300mA.

The current sensor is a device that converts the measured AC microcurrent and DC isolation into switching signals according to the principle of electromagnetic isolation and magnetic modulation of the transformer.

Widely used in dc and AC power supply system bus and branch insulation condition real-time monitoring.

Leakage current sensor is an indispensable important components, for dc ac leakage current test equipment, widely used in power transmission, electric storage detection, power supply, large medical equipment, photovoltaic, wind power, communication base station equipment industry such as goods, to feedback of the leakage situation of equipment, the first time after the leakage protection switch the original will be in the first place to take relevant measures, such as to avoid accidents, safe use, production operation.

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