The current of the fan and the air duct becomes smaller,
1. The actual operating power of the fan is small, and the operating current is too small.
2. The line voltage drop is too large when starting and the motor terminal voltage is too low. The fan is a machine that relies on input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. Fan is the customary abbreviation for gas compression and gas transportation machinery in China. Fans commonly include ventilators, blowers, and wind turbines.