Why 2-phase induction motors are NOT used in industries even though they have rotating magnetic field.

abhinav Kumar

• Sep 6th, 2015

Two phase motor essentially use in domestic use like water pump set ... It gives high torque and low efficiency. The phase diff 180 or 90 make the two phases with the help of capacitor.

anilsabaji

• Mar 11th, 2012

2 Phase motors have low efficiency and low power factor. There are higher chances of stalling.

MOST IMPORTANT: 2 phase load will create imbalance in the power system and high current and bulky too. Why should we use it when we have more efficient 3 phase induction motors

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The thrust collar provided at steam end of steam turbine rotor why we not provide it at exhaust end.

Tarik

• Feb 16th, 2016

There is higher pressure at steam end so it will push the thrust collar in oppsite of exhaust end, rotor axial force is towards exhaust end because of pressure diffrence so thrust collar will balance the axial movement by steam pressure.

franksma

 Profile Answers by franksma Questions by franksma

• Nov 18th, 2010

It is not compulsary that the thriust collor should be in Steam inlet end,The thrust collor locations can be set on exhuast side also, it is all purely depends on the design of the steam turbine and the driven unit.

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