The role and working characteristics of the relay. The relay is an electronic control device. It has a control system (also called an input loop) and a controlled system (also called an output loop). It is usually used in automatic control circuits. A kind of "automatic switch" that uses a small cur... read more
What is the working principle and function of the relay? The use of the relay in our home is still very important. It can provide the most basic living security for the home life, but we must pay attention to the use of the relay to avoid unnecessary trouble. First, What is the function and principl... read more
1. The principle of current transformer selection and inspection 1) The rated voltage of the current transformer is not less than the rated voltage of the line at the installation point; 2) Calculate the current IC according to the primary load to select the current transformer change; 3) Select th... read more
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