Power Supply Apparatus

A power supply apparatus mounted in a moving body includes: a pickup coil configured to generate induced electromotive force by an AC current flowing through a feeder line arranged along a moving route of the moving body; a power receiver configured to convert an AC power into a DC power; a capacitor connected to the output side of the power receiver; a circuit protector provided between the power receiver and the capacitor, and an electrical load; and an external power supply connector provided to allow connection of a DC external power supply to a first node between the circuit protector and the electrical load.