With regard to its construction and winding
connection of its passive rotor, the threephase
asynchronous motor is also referred to
as a squirrel-cage motor or squirrel-cage rotor
(motor). Comparable with a rotating transformer
and in accordance with its mode of
action, the term induction motor is also generally
used. Designs with separate stator windings
are referred to as Dahlander-connection or
pole-changing motors. A further variant is the
slipring rotor (motor). In this case, the windings
of the rotor are connected to three slip
rings and are only interconnected using resistors
outside the motor.