In centrifugal pumps and separators _______ is used.

The correct answer is option 4):(split-phase IM)

Concept:

• The Split Phase Motor is also known as a Resistance Start Motor. It has a single cage rotor, and its stator has two windings known as main winding and starting winding. Both the windings are displaced 90 degrees in space.
• The main winding has very low resistance and a high inductive reactance whereas the starting winding has high resistance and low inductive reactance.

​

• Split-phase induction motors have low starting current and moderate starting torque, these motors are used in fans, blowers, centrifugal pumps, washing machines, grinders, lathes, air conditioning fans, etc.
• A centrifugal oil separator is a device used to separate solids from a liquid phase.It uses a split-phase induction motor
• These motors are available in the size ranging from 0.05 kW to 0.5 kW