reduce the current for controlling the temperature
change the direction of current flow for controlling the temperature
regulate the heat and thus the temperature by switching the element to ON-OFF
switch ON-OFF the indicator lamp
repulsion motor
permanent capacitor motor
capacitor-start induction-motor
shaded-pole motor
decrease the current
drop the voltage applied to the fan
increase the speed
increase the torque
protect the fan in case a fault occurs
produce a phase-shift
control the speed
it has no element
its element is closed in a sand filled spiral, narrow pipe
it can't be opened
it gets burst on becoming defective