DBATU Model MCQ – Electrical Machines 2

In double delta transformation, a double delta refers to the case where there are two delta transformations inDeselect Answer

  In Scott connection, the voltage across the teaser leads the mains byDeselect Answer

   For large low voltage transformers, the most commonly used connections areDeselect Answer

   In a three phase transformer, the current flowing in three primaries produces three corresponding fluxes. The sum of these three fluxes at any instant isDeselect Answer

  The constant current transformer are mainly used forDeselect Answer

   Small iron core transformers used in certain frequency range is also called audio frequency transformer. The audio frequency range isDeselect Answer

 The output voltage of constant voltage transformer contains excessive harmonics which can be filtered out by usingDeselect Answer

  A constant voltage transformer is fed with the sinusoidal input voltage. Its output isDeselect Answer

   A star connected three phase transformer is provided with tertiary delta connected winding which allows the flow ofDeselect Answer