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What are the advantages of Slip ring induction motor compare to the squirrel cage induction motor?
Can produce variable starting and running torque
Can limit starting current
Slip power recovery is possible
All of these
All of these
The correct answer is D (All of these) since slip ring induction motors offer advantages such as variable starting and running torque, limited starting current, and the capability for slip power recovery. These features make them versatile for a range of applications.
The correct answer is D (All of these) since slip ring induction motors offer advantages such as variable starting and running torque, limited starting current, and the capability for slip power recovery. These features make them versatile for a range of applications.
PslipтАЛ=RrтАЛR2тАЛтАЛтЛЕPinputтАЛ тАФ Slip power recovery capacity
Slip ring induction motors function through rotor windings connected to external resistors via slip rings, allowing for control of rotor resistance. This design enables adjustments in torque characteristics and minimizes starting currents, enhancing efficiency.
Slip ring motors enable better control over motor characteristics.
High starting torque and efficient operation in varying load conditions are key advantages.
Ability to achieve higher starting and running torque.
Enhanced control over rotor winding resistance.
Higher maintenance requirements due to brushes and slip rings.
Increased cost compared to squirrel cage motors.
Cranes and hoists where variable torque is crucial.
Pumps and compressors needing high starting torque.
Standard specifications include temperature rise, efficiency, and torque ratings.
Option A is a valid statement but limited in scope; it doesn't highlight other advantages.
D is correct тАФ all advantages clearly delineate the operational flexibility and efficiency of slip ring induction motors.
Understanding the operational characteristics of different motors is crucial for selecting the right one for power applications.