1, inductive load: Gym equipment, such as treadmills, can reach more than 7 times the normal current when starting, because the torque is the largest when starting, so the current is the largest.

2. Capacitive load: the current is the largest when the power supply is just turned on, because the voltage across the capacitor is equal to zero when the power supply is just turned on, so the charging current is also the largest.

3. Resistive loads: Some resistive loads have a large current when they are just connected to the power supply. For example, when the treadmill is just turned on, the resistance is the smallest (the temperature is low), and the resistance increases when the temperature rises, so the current is the largest when the treadmill is started, and the resistance increases when the temperature rises.