Like other machines induction motors are tested to get necessary information to know parameters,
In induction motor the transfer of energy from stator to rotor takes place entirely inductively.
When 3-phase stator windings are fed by a 3-phase supply then a rotating magnetic field is setup.
3 Phase induction motors are most widely used in industries. It has the following advantages:
AC motors are considered as a significant portion of the world's electric load.
The Buchholz's system is used with oil immersed transformers.