What is the function of the thermal relay in the switch box?
The **thermal relay** in the switch box is mainly used for **overload protection of the motor**. Its core function is to cut off the power supply when the motor is overlo...
How does the neutral wire of a transformer come about?
The neutral wire of a transformer is an important part of the power system, which is used to provide single-phase circuits and safe grounding. Its formation and func...
