Electrical Engineering ⇒ Topic : Merits and demerits of repulsion start induction motor

MERITS

• Require more maintenance.
• More expensive.
• Make quite a bit of noise on starting.
• Cause radio interference when starting
• Cannot be reversed easily.

DEMERITS Repulsion-start motors, despite these disadvantages, are still used in integral-horsepower sizes because of the following reasons

• High starting torque.
• Low string current.
• Ability to accelerate a heavy load more rapidly than high capacitance' dual-capacitor motors