Power supply short circuit phenomenon demonstrator

The utility model discloses a power supply short circuit phenomenon demonstrator, belongs to the technical field of teaching demonstration tools, and solves the problem of how to improve the demonstration effect of a short circuit phenomenon. According to the technical scheme, a power module is connected in series through a first switch and an indicating lamp to form a first power supply loop; the power supply module is connected in series through the temperature controller and the linked switch to form a second power supply loop, the power supply module is connected in series through the heating wire and the linked switch to form a third power supply loop, and a temperature sensor of the temperature controller is attached to the heating wire; a positive lead and a negative lead are reserved on the power supply module, the capacitor is fixed on the demonstration board, and the positive lead and the negative lead are used for being in lap joint with capacitor pins; and the power supply module forms a fourth po