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Fractional Horse power motor work on
Single phase supply
Three phase supply
DC supply
Any of above
Single phase supply
Fractional Horsepower (FHP) motors are defined as motors with a power rating of less than 1 horsepower (typically 746 Watts). These motors are primarily designed to operate on standard single-phase AC supply circuits, commonly found in residential and light commercial electrical wiring.
Fractional Horsepower (FHP) motors are defined as motors with a power rating of less than 1 horsepower (typically 746 Watts). These motors are primarily designed to operate on standard single-phase AC supply circuits, commonly found in residential and light commercial electrical wiring.
1┬аHP=746┬аWatts тАФ Standard definition of electrical horsepower
PoutтАЛ<746┬аW тАФ Power criterion for fractional horsepower motors
FHP motors operate on electromagnetic induction. Because single-phase supply does not produce a rotating magnetic field, these motors often incorporate auxiliary windings (starting windings) or a capacitor to create a phase shift, generating the necessary starting torque to achieve rotation.
FHP motors typically handle small loads such as fans, refrigerators, and washing machines.
Common types include capacitor-start, split-phase, and shaded-pole motors.
While some FHP motors can run on DC, the term usually implies single-phase AC in standard wiring contexts.
Compact and lightweight
High efficiency in small-scale applications
Easy integration with standard residential power
Limited power output
Lower starting torque compared to polyphase motors
Requires auxiliary starting mechanisms
Domestic appliances (Mixers, Fans)
Office equipment (Printers)
Small tools and precision instruments
These motors are designed for 230V AC in India.
Option B is typically for industrial motors above 1 HP. Option C refers specifically to DC motors, which are a subset but not the general definition of AC-based FHP appliances.
A is correct тАФ Fractional Horsepower (FHP) motors are specifically rated for loads below 1 HP and are primarily optimized for single-phase electrical supply systems.
Always remember that in Indian household electrical circuits, the standard supply is single-phase 230V, 50Hz, which is the primary source for all FHP appliances.